Electromechanical clutch for down-the-hole tools
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- HALLIBURTON ENERGY SERVICES INC
- Filing Date
- 2023-04-18
- Publication Date
- 2026-07-10
Abstract
Description
Description Title of the invention: Electromechanical clutch for tools bottom of the hole CONTEXT
[0001] — Bottom safety valves (BSVs) are well known in the petroleum industry and gas and provide one of many built-in safety mechanisms for prevent the uncontrolled release of background production fluids, if a system of The borehole was expected to experience a loss of containment. Typically, SSSVs com- take part of a production column, the entirety of the SSSVs being put into place during the completion of a borehole. Although a number of While design variations are possible for SSSVs, the vast majority are... poppet valves that open and close in response to the longitudinal movement of a bore flow management actuator.
[0002] Since the SSSVs provide a built-in safety mechanism, the posi- The default operating position of the poppet valve is generally closed in order to minimize the Risk of accidental release of bottom-stage production fluids. The check valve may be opened by various means of control from the Earth's surface in order to to provide a channel for production to occur. What is born- necessary in the technique, it is an improved SSSV that is not confronted with problems with existing SSSVs. BRIEF DESCRIPTION
[0003] Reference is now made to the following descriptions taken in conjunction with the attached drawings, in which:
[0004] Figure 1 illustrates a well system designed, manufactured and / or operated according to a or several methods of disclosure;
[0005] [Fig.2], [Fig.3] and [Fig.4] illustrate an embodiment of a designed SSSV, manufactured and / or operated according to one or more embodiments of the disclosure;
[0006] [Fig. 5A] and [Fig. 5B] illustrate one embodiment of a clutch assembly, which could be part of an SSSV (for example, the SSSV of [Fig.1] or the SSSV of figures 2 to 4), designed and manufactured according to this disclosure;
[0007] [Fig.5C] and [Fig.5D] illustrate one embodiment of a clutch assembly, which could be part of an SSSV (for example, the SSSV of [Fig.1] or the SSSV of the figures 2 to 4), designed and manufactured according to an alternative embodiment of the present disclosure ;
[0008] = [Fig.6A] and [Fig.6B] illustrate one embodiment of a clutch assembly, which could be part of an SSSV (for example, the SSSV of [Fig.1] or the SSSV of the figures 2 to 4), designed and manufactured according to an alternative embodiment of this disclosure; [Fig. 6C] and [Fig. 6D] illustrate an embodiment of a clutch assembly, which could be part of a SSSV (for example, the SSSV of [Fig. 1] or the SSSV of Figures 2 to 4), designed and manufactured according to an alternative embodiment of this disclosure; and [Fig.7A], [Fig.7B] and [Fig.7C] illustrate one embodiment of a clutch assembly, which could be part of an SSSV (for example, the SSSV of [Fig.1] or the SSSV of Figures 2 to 4), designed and manufactured according to yet another alternative embodiment of this disclosure. DETAILED DESCRIPTION In the drawings and descriptions that follow, identical parts are generally marked throughout the description and all drawings with the same numerical references, respectively. The figures drawn may be to scale but are not required to be. Certain features of the disclosure may be shown enlarged to scale or in a somewhat simplified form, and it is possible that some details of certain elements may not be shown for the sake of clarity and conciseness. This disclosure may be implemented in various embodiments. Specific embodiments are described in detail and are shown in the drawings, it being understood that this disclosure is to be considered an example of the disclosure principles and is not intended to limit the disclosure to that illustrated and described herein.It must be fully understood that the various teachings of the embodiments discussed herein can be used separately or in any appropriate combination to produce the desired results. Furthermore, all statements in the present invention indicating principles and aspects of disclosure, as well as specific examples thereof, are intended to encompass equivalents thereof. Moreover, the term "or," as used herein, denotes a non-exclusive "or," unless otherwise indicated. Unless otherwise indicated, the use of the terms "connect", "engage", "couple", "attach", or any other similar term describing an interaction between elements, is not intended to limit the interaction to a direct interaction between the elements and may also include an indirect interaction between the elements described. Unless otherwise indicated, the use of the terms "top", "upper", "upwards", "hole top", "upstream", or other similar terms, should be interpreted as generally moving away from the bottom, the terminal end of a well, Regardless of the borehole's orientation, the use of terms such as "bottom," "lower," "down," "downhole," or similar terms should be interpreted as generally referring to the bottom, the terminal end of a well, regardless of the borehole's orientation. The use of any or more of the preceding terms should not be interpreted as referring to positions along a perfectly vertical or horizontal axis. Unless otherwise specified, the use of the term "subsurface formation" should be interpreted as encompassing both areas below the exposed Earth's surface and areas below the Earth's surface covered by water, such as oceans or freshwater bodies. [Fig. 1] illustrates a well system 100 designed, manufactured, and / or operated according to one or more embodiments of the disclosure. The well system 100, in at least one embodiment, includes an offshore platform 110 connected to a substation 170 via a control line 120 (e.g., an electrical control line, a hydraulic control line, etc.). An annular space 150 may be defined between the walls of a wellbore 130 and a conduit 140. A wellhead 160 may provide a means for transferring and sealing the conduit 140 against the wellbore 130 and provide a profile on which to lock a well blowout preventer. The 140 conduit can be coupled to the 160 wellhead. The 140 conduit can be any conduit such as casing, lining, production tube or other oilfield tubular elements arranged in a wellbore. The SSSV 170, or at least a portion thereof, can be interconnected in conduit 140 and positioned in wellbore 130. Although wellbore system 100 is shown in [Fig. 1] as an offshore wellbore system, those skilled in the art should be able to apply the teachings presented here to any type of wellbore, including onshore and offshore. The control line 120 can extend into wellbore 130 and can be connected to the SSSV 170. The control line 120 can provide actuation power to the SSSV 170. As will be described in more detail below, power can be supplied to the SSSV 170 to activate or deactivate it.Actuation may include opening the SSSV 170 to provide a flow path for bottom-up production fluids to enter conduit 140, and deactivation may include closing the SSSV 170 to close a flow path for bottom-up production fluids to enter conduit 140. While the embodiment in [Fig. 1] illustrates only a single SSSV 170, other embodiments exist in which multiple SSSV 170s are used, as disclosed. Referring now to Figures 2 to 4, an embodiment of a SSSV 200 designed, manufactured and / or operated according to one or more embodiments of the di- The explanation is illustrated. In the illustrated embodiment, the SSSV 200 comprises a valve body 205 having an upper assembly 210, a lower assembly 215, and a longitudinal bore 220 extending along the length of the valve body 205. In at least one embodiment, the valve body 205 is coupled to the production tube (for example, the conduit 130 of [Fig. 1]). The longitudinal bore 220 forms a passage for the fluid to flow between the lower section 225 and the upper section 230 of the valve body 205. The SSSV 200 may further include a drive assembly 240 (e.g., an electric motor, a hydraulic motor, etc.) coupled to a bore closing assembly 250. As used here, a drive assembly 240 means a drive configuration in which the drive force only needs to overcome the resisting force that normally forces the bore closing assembly 250 to a closed or other position (e.g., the force of the spring 315 as shown in [Fig. 3]). The drive assembly 240 uses a mechanical linkage 245 to drive the bore closing assembly 250 to an open position in response to a control signal (e.g., an electrical signal sent to an electric motor via an electrical control line 235, among others). A clutch assembly 255, designed, manufactured, and / or operated according to one or more embodiments of the disclosure, may be positioned between the drive assembly 240 and the mechanical linkage 245. In at least one embodiment, the clutch assembly 255 includes an electromagnetic element (for example, comprising an electromagnetic coil) coupled to an input shaft thereof. The electromagnet, in at least one embodiment, is configured to couple and / or decouple the input shaft from an output coupler housing using a variety of different mechanisms, depending on the design of the latter.Consequently, the electromagnet, and the associated engagement elements and grooves, can be used to allow the input shaft and output coupler housing to rotate freely relative to each other when in the decoupled state, but fix the input shaft and output coupler housing in rotation relative to each other when in the coupled state. While the drive assembly 240, the clutch assembly 255, and the mechanical linkage 245 are shown as separate components in [Fig. 2], it should be understood that these three assemblies can be integrated into fewer than three components. For example, a single drive / clutch / linkage component, two components such as a drive / clutch component coupled with a linkage component, or a drive component coupled with a clutch / linkage component, among others, could be included in these SSSV 200. In some embodiments, the drive assembly 240, the clutch assembly 255 and the mechanical linkage 245 are housed in the upper assembly 210 of the SSSV 200 and the bore closing assembly 250 is housed in the lower assembly 215 of the SSSV 200. In the embodiment illustrated in [Fig. 3], the bore closure assembly 250 is a poppet valve disposed inside the longitudinal bore 220 near the lower section 225 of the SSSV 200. However, other types of valves such as ball valves, gate valves, butterfly valves, etc., are also included in the disclosure. As its name suggests, a poppet valve opens and closes the SSSV 200 to the fluid flow by rotating a poppet 305 about a hinge on an axis transverse to an axis of the longitudinal bore 220. The poppet 305 can be actuated by an axially movable bore flow control actuator 310 (for example, a flow tube) that moves longitudinally inside the longitudinal bore 220.The lower end of the bore flow control actuator 310 abuts against the valve 305, causing the valve 305 to rotate about its hinge and open the SSSV 200 to fluid flow when the bore flow control actuator 310 moves downward. The compression spring 315, for example positioned between a bore flow control actuator ring 320 and a valve seat 325, normally forces the bore flow control actuator 310 upward so that when the lower end of the bore flow control actuator 310 is in the closed position, it does not press down on the valve 305. With the bore flow control actuator 310 in a retracted position, the valve 305 is free to rotate. around its axis in response to a stimulus force exerted by, for example, a torsion spring (not shown).The valve 305 can rotate so that its sealing surface comes into contact with the valve seat 325, thus sealing the longitudinal bore 220 to the fluid flow. In another embodiment (not shown), the bore closure assembly 250 is a ball valve disposed inside the longitudinal bore 220 near the lower end of the SSSV 200. Ball valves, in some embodiments, use a rotating spherical or ball head having a central flow passage that can be aligned with the longitudinal bore 220 to open the SSSV 200 to fluid flow. Rotating the ball valve through an angle of approximately 255 degrees or more will prevent flow through the longitudinal bore 220 of the ball valve, thus closing the SSSV 200 to fluid flow. The ball valve can be actuated to close the longitudinal bore 220 to fluid flow. Turning briefly to [Fig. 4], an embodiment of the mechanical linkage 245 is illustrated, which includes a lead screw assembly 405 for an SSSV 200. The leadscrew assembly 405 further includes a leadscrew 410, the upper end of which is connected to the clutch assembly 255 and the lower end of which is screwed into a drive nut 415. The lower end of the drive nut 415 is in contact with the upper end of the power rod 420, which may be exposed to the wellbore fluid. The lower end of the power rod 420 is in contact with and fixedly connected to the bore flow management actuator ring 320. The drive nut 415, in at least one embodiment, is prevented from rotating and, in response to the rotation of the lead screw 410 by the drive assembly 240 and the clutch assembly 255, moves axially, thus moving the power rod 420 and the bore flow management actuator ring 320 downwards to open the SSSV 200 to the flow of fluid.Alternatively, the drive nut 415 can be rotated while the lead screw 410 is prevented from rotating, thus causing a relative movement between these components to actuate the bore flow management actuator 310. In this embodiment, the clutch assembly 255 can be coupled to the drive nut 415. Referring again to Figures 2 and 3, the clutch assembly 255 is positioned and configured to assist in driving and holding the bore closing assembly 250 in the open position (commonly referred to as the "fully open" position) while receiving the control signal. Furthermore, the clutch assembly 255 is configured to release the bore closing assembly 250 to return to the closed position upon interruption of the control signal, which is also called the "hold" signal. The hold signal, in at least one embodiment, is communicated via wired communication from a surface-mounted control center, consisting of something as simple as a power supply signal.In the event that the holding signal is interrupted (which means that the clutch assembly 255 no longer receives the holding signal), the clutch assembly 255 releases the bore closing assembly 250 to automatically return to the closed position. The holding signal can be unintentionally interrupted, for example, by an event along the riser, wellhead, or production facility, or intentionally by a production operator seeking to shut down the well in response to operating conditions or specific requirements (such as maintenance, testing, production planning, etc.). Indeed, the drive assembly 240 and the clutch assembly 255 are what "arm" or "equip" the SSSV 200 by driving it from its normally required closed position to the open position. The clutch assembly 255 therefore also acts as a "trigger" by holding the SSSV 200 in the open position during certain conditions. normal operating procedures are followed in response to a hold signal. Interruption or failure of the hold signal results in the automatic closure of the SSSV 200. Turning now to Figures 5A and 5B, an embodiment of a 500a clutch assembly is shown, which could be part of a SSSV (for example, the SSSV of [Fig. 1] or the SSSV 200 of Figures 2 to 4), designed and manufactured according to this disclosure. While the clutch assembly according to this disclosure is described in at least one embodiment as being used with an SSSV, or even inside a downhole tool, other embodiments exist in which the clutch assembly according to this disclosure is not used with an SSSV, either inside a downhole tool or even a tophole tool. Thus, a clutch assembly according to this disclosure is not limited to oil and gas applications. [Fig.5A] illustrates the 500a clutch assembly in a decoupled state, while [Fig.5B] illustrates the 500a clutch assembly in a coupled state.The clutch assembly 500a, in the illustrated embodiment, includes an output coupler housing 510. The output coupler housing 510, in at least one embodiment, is configured to couple to a leadscrew of a mechanical linkage (for example, the leadscrew 410 of the mechanical linkage 245 in Figures 2 to 4). According to one embodiment of the disclosure, the output coupler housing 510 has a central opening 515 extending at least partially through it. In at least one embodiment, the output coupler housing 510 comprises a ferromagnetic material. For example, the output coupler housing 510 may comprise any ferromagnetic material and / or an alloy thereof and remain within the scope of the disclosure. In the illustrated embodiment, the clutch assembly 500a further includes an input shaft 550 located at least partially within the central opening 515 of the output coupler housing 510. The input shaft 550, in at least one embodiment, is configured to couple to an output of a drive assembly (for example, the drive assembly 240 of Figures 2 to 4). In at least one embodiment, the input shaft 550 comprises a non-ferromagnetic material. Other embodiments exist, however, in which the input shaft 550 comprises a ferromagnetic material. In the illustrated embodiment, the clutch assembly 500a further includes an electromagnet 580 coupled (for example, physically coupled) to the input shaft 550. In at least one embodiment, the electromagnet 580 is configured to magnetically couple to the output coupler housing 510 to axially move the output coupler housing 510 from a decoupled state to a coupled state (for example, when the electromagnet 580 is excited). In accordance with one embodiment of the disclosure, the clutch assembly 500a further comprises one or more grooves 560 located in one of an external surface of the input shaft 550 or an internal surface of the central opening 515. According to this disclosure embodiment, the clutch assembly 500a further comprises one or more engagement elements 520 located in either the internal surface of the central opening 515 or the external surface of the input shaft 550. According to this embodiment, the one or more engagement elements 520 are configured so as not to engage with the one or more grooves 560 when the output coupler housing 510 is in the decoupled state (for example, as illustrated in [Fig. 5A]), and thus allow the input shaft 550 and the output coupler housing 510 to rotate freely relative to each other.Similarly, one or more engagement elements 520 are configured to engage with one or more grooves 560 when the output coupler housing 510 is in the coupled state, thereby rotationally fixing the input shaft 550 and the output coupler housing 510 relative to each other. Consequently, any rotation of the drive assembly, and therefore of the input shaft 550, will only be directed towards the output coupler housing 510, and thus the leadscrew of a mechanical linkage, when the output coupler housing 510 is in the coupled state. Otherwise, the drive assembly, and therefore the input shaft 550, and the output coupler housing 510, and thus the leadscrew of a mechanical linkage, will rotate freely relative to each other. The embodiment of Figures 5A and 5B illustrates a configuration in which one or more grooves 560 are located inside an external surface of the input shaft 550, and one or more engagement elements 520 are located in engagement element openings 530 extending into an internal surface of the central opening 515. However, other embodiments (not shown) may exist in which one or more grooves 560 are located in the internal surface of the central opening 515, and one or more engagement elements 520 are located in engagement element openings extending into the external surface of the input shaft 550.However, in the embodiment illustrated in Figures SA and SB, one or more grooves 560 are positioned so that one or more engagement elements 520 are aligned with an ungrooved section 560a of the input shaft 550 when the output coupler housing 510 is in the uncoupled state (for example, [Fig.SA]), and are aligned with a grooved section 560b of the input shaft 550 when the output coupler housing 510 is in the coupled state (for example, [Fig.5B]). In embodiments of Figures 5A and 5B, the one or more grooves 560 are a plurality of splines. In addition to embodiments of Figures SA and 5B, the one or more engagement elements 520 are a plurality of ball elements. The shape of the plurality of splines and the plurality of ball elements is such that there is an easy transition when the plurality of ball elements enters and exits the plurality of splines. For example, in some embodiments, the plurality of ball elements act as ball bearings and can therefore roll easily. The ability of the ball elements to roll will decrease the friction required to disengage the plurality of splines from the plurality of ball elements. Furthermore, by having the ball elements capable of moving by means of a rolling motion, and thus not experiencing the same frictional forces that might occur with the meshing of gear faces with each other, any problems associated with irregular disengagement can be reduced. Any number of grooves 560 and engagement elements 520 are within the scope of disclosure. For example, one embodiment exists in which a single groove 560 and a single engagement element 520 are used. Another embodiment exists in which two grooves 560 and two engagement elements 520 are used. Still other embodiments exist in which four or more grooves 560 and four or more engagement elements 520 are used. In the embodiment illustrated in Figures SA and 5B, the clutch assembly 500a further comprises a shaft tension spring 540 located in the central opening 515 between the input shaft 550 and the output coupler housing 510. In this embodiment, the shaft tension spring 540 is configured to tension the output coupler housing 510 towards the decoupled state, for example when the electromagnet is de-energized. In embodiments in which the shaft-tensioning spring 540 is used, the output coupler housing 510 and the electromagnet 580 shall be designed to generate sufficient attractive force to overcome the spring force of the shaft-tensioning spring 540 (e.g., and any associated friction), or else the clutch assembly 500a will not move between the decoupled state (e.g., [Fig.5A]) and the coupled state (e.g., [Fig.SB]), as required. The shaft tension spring 540, on the other hand, must have sufficient spring force to return the clutch assembly from the coupled state (e.g., [Fig. 5B]) to the decoupled state (e.g., [Fig. 5A]) when the electromagnet 580 is de-energized. For example, if the power supply (e.g., electrical supply) to the electromagnet 580 were to be intentionally removed, the shaft tension spring 540 could return (e.g., independently return) the output coupler housing 510 to the decoupled state, thus allowing the bore flow control actuator to switch from the flow state to the closed state. Similarly, if the power supply (e.g., electrical supply) to the electromagnet 580 were to be cut off by Inadvertently, the shaft tension spring 540 could return (for example, independently return) the output coupler housing 510 to the decoupled state, thereby allowing the bore flow control actuator to switch from the flow state to the closed state. Thus, in at least one embodiment, the shaft tension spring 540 acts as a built-in safety feature when power is lost. In addition to the embodiment shown in Figures 5A and 5B, the clutch assembly may further include a meshing element spring 545 (for example, a ball element spring) in each of the meshing element openings 530. In the illustrated embodiment, the meshing element springs 545 are positioned between each meshing element 520 (for example, each ball element) and the output coupler housing 510. The meshing element springs 545, in the illustrated embodiment, are configured to force each meshing element 520 (for example, each ball element) into a radially inward state. As a result, when the engagement elements 520 move from the ungrooved section 560a to the grooved section 560b when the output coupler housing 510 moves axially, the engagement elements 520 independently engage with the grooves 560. Turning now to Figures 5C and 5D, an embodiment of a 500c clutch assembly is shown, which could be part of a SSSV (for example, the SSSV of [Fig. 1] or the SSSV 200 of Figures 2 to 4), designed and manufactured according to this disclosure. The 500c clutch assembly is similar in many respects to the 500a clutch assembly of Figures SA and 5B. Accordingly, the same numerals have been used to indicate similar, if not identical, characteristics. Clutch assembly 500c differs substantially from clutch assembly 500a in that clutch assembly 500c positions its engagement elements 520c and engagement element springs 545c in the engagement element openings 530c in its input shaft 550c. Furthermore, clutch assembly 500c of figures SC and SD positions its one or more grooves 560c in the inner surface of the central opening 515 of the external coupler housing 510c. Essentially, clutch assembly 500c operates in the opposite way to clutch assembly 500a, with the engagement elements 520c extending radially outward into the one or more grooves 560c for the engaged state. Turning now to Figures 6A and 6B, a 600a clutch assembly is shown, such as might be part of a SSSV (for example, the SSSV 170 of [Fig. 1] or the SSSV 200 of Figures 2 to 4), designed and manufactured according to an alternative embodiment of this disclosure. [Fig. 6A] illustrates the 600a clutch assembly. in a decoupled state, while [Fig. 6B] illustrates the 600a clutch assembly in a coupled state. The 600a clutch assembly shares many characteristics with the 500a clutch assembly. Consequently, the details discussed above concerning the 500a clutch assembly can be applied to the 600a clutch assembly. The clutch assembly 600a, in the illustrated embodiment, includes an output coupler housing 610. The output coupler housing 610, in at least one embodiment, is configured to couple to a leadscrew of a mechanical linkage (for example, the leadscrew 410 of the mechanical linkage 245 in Figures 2 to 4). According to one disclosure embodiment, the output coupler housing 610 has a central opening 615 extending at least partially through it. In at least one embodiment, the output coupler housing 610 comprises a non-ferromagnetic material. Although not optimal in some designs, other embodiments may exist in which the output coupler housing 610 comprises a ferromagnetic material and / or an alloy thereof. In the illustrated embodiment, the clutch assembly 600a further comprises an input shaft 650 located at least partially within the central opening 615 of the output coupler housing 610. The input shaft 650, in at least one embodiment, is configured to couple to an output of a drive assembly (for example, the drive assembly 240 of Figures 2 to 4). In at least one embodiment, the input shaft 650 comprises a ferromagnetic material and / or an alloy thereof. In the illustrated embodiment, the clutch assembly 600a further comprises an electromagnet 680 coupled (for example magnetically coupled) to the input shaft 650. In at least one embodiment, the electromagnet 680 is configured to magnetize the input shaft 650 when the electromagnet 680 is excited. According to one embodiment of the disclosure, the clutch assembly 600a further comprises one or more grooves 660 (for example, axial grooves in the embodiment shown in Figures 6A and 6B) located in an external surface of the input shaft 650. According to this disclosure embodiment, the clutch assembly 600a further comprises one or more engagement elements 620 located in engagement element openings 630 in the output coupler housing 610. The one or more engagement elements 620, in at least the embodiment shown, comprise a ferromagnetic material and / or an alloy thereof. According to this embodiment, the one or more engagement elements 620 are configured so as not to engage with the one or more grooves 660 when the output coupler housing 610 is in the decoupled (for example, as illustrated in [Fig. 6A]), and thus allow the input shaft 650 and the output coupler housing 610 to rotate freely relative to each other. Similarly, one or more engagement elements 620 are configured to engage with one or more grooves 660 when the output coupler housing 610 is in the coupled state, thereby rotationally fixing the input shaft 650 and the output coupler housing 610 relative to each other. Consequently, any rotation of the drive assembly, and therefore of the input shaft 650, will only be directed towards the output coupler housing 610, and thus the leadscrew of a mechanical linkage, when the output coupler housing 610 is in the coupled state. Otherwise, the drive assembly, and therefore the input shaft 650, and the output coupler housing 610, and therefore the leadscrew of a mechanical linkage, will rotate freely relative to each other. According to one embodiment of the disclosure, the clutch assembly 600a further includes an engagement element spring 645 positioned in each of the engagement element openings 630, for example between each engagement element 620 and the output coupler housing 610. The engagement element springs 645, in at least one embodiment, are configured to force the engagement elements 620 into a radially outward state (for example, as illustrated in [Fig. 6A]). In the embodiment shown in Figures GA and 6B, the excitation of the electromagnet 680 magnetizes the input shaft 650, which in turn magnetically attracts one or more engagement elements 620 into one or more grooves 660, thus fixing the input shaft 650 and the output coupler housing 610 in rotation relative to each other. Conversely, when the electromagnet 680 is no longer energized (for example, whether intentionally or unintentionally), the engagement element springs 645 return the engagement elements 620 to their radially outward position, thus allowing the input shaft 650 and the output coupler housing 610 to rotate freely relative to each other.This contrasts with the embodiment of figures SA and 5B, in which the electromagnet 580 axially displaces the output coupler housing 510 to bring its engagement element(s) 520 into contact with its one or more grooves 560. Turning now to Figures 6C and 6D, an embodiment of a 600c clutch assembly is shown, which could be part of a SSSV (for example, the SSSV of [Fig. 1] or the SSSV 200 of Figures 2 to 4), designed and manufactured according to this disclosure. The 600c clutch assembly is similar in many respects to the 600a clutch assembly of Figures 6A and 6B. Accordingly, the same numerals have been used to indicate similar, if not identical, characteristics. The clutch assembly 600c differs essentially from the clutch assembly 600a in that the clutch assembly 600c positions its engagement elements 620c and the engagement element springs 645c in the engagement element openings 630c in its input shaft 650c. Furthermore, the clutch assembly 600c of Figures 6C and 6D positions its one or more grooves 660c (for example, axial or non-axial grooves) in the inner surface of the central opening 515 of the external coupler housing 610c. In addition to the embodiment shown in Figures 6C and 6D, the electromagnet 680c is coupled to the output coupler housing 610c, as opposed to the input shaft 650 shown in Figures 6A and 6B. Consequently, the electromagnet 680c is configured to magnetize the output coupler housing 610c when it is energized. For example, in one embodiment, the output coupler housing 610c may be made of a ferromagnetic material, one or more of the 620c plugging elements may be made of a ferromagnetic material, and the input shaft 650c may be made of a non-ferromagnetic material. As a result, the output coupler housing 610c can magnetically attract one or more 620c plugging elements into one or more 660c grooves and thus be in the coupled state when the electromagnet 680c is excited.Essentially, the 600c clutch assembly operates in the opposite way to the 500a clutch assembly, with the 520c engagement elements extending radially outwards into one or more 560c grooves for the coupled state (e.g., by means of the external magnetized coupler housing 610c). Turning now to Figures 7A to 7C, a 700 clutch assembly is shown, as it might be part of a SSSV (for example, the SSSV 170 of [Fig. 1] or the SSSV 200 of Figures 2 to 4), designed and manufactured according to yet another alternative embodiment of this disclosure. [Fig. 7A] shows the 700 clutch assembly in a decoupled state, [Fig. 7B] shows the 700 clutch assembly in an initially coupled state, while [Fig. 7C] shows the 700 clutch assembly in a fully coupled state. The 700 clutch assembly shares many characteristics with the 500a, 500c, 600a, and 600c clutch assemblies. Consequently, the details discussed above regarding the 500a, 500c, 600a, 600c clutch assembly can be applied to the 700 clutch assembly. The clutch assembly 700, in the illustrated embodiment, includes an output coupler housing 710. The output coupler housing 710, in at least one embodiment, is configured to couple to a leadscrew of a mechanical linkage (for example, the leadscrew 410 of the mechanical linkage 245 in Figures 2 to 4). According to one disclosure embodiment, the output coupler housing 710 has a central opening 715 extending at least partially through it. In at least one embodiment, the output coupler housing 710 includes a non-ferromagnetic material. Although not optimal in some designs, other embodiments may exist in which the output torque housing 710 includes a ferromagnetic material and / or an alloy thereof. In the illustrated embodiment, the clutch assembly 700 further comprises an input shaft 750 located at least partially within the central opening 715 of the output coupler housing 710. The input shaft 750, in at least one embodiment, is configured to couple to an output of a drive assembly (for example, the drive assembly 240 of Figures 2 to 4). In at least one embodiment, the input shaft 750 comprises a ferromagnetic material and / or an alloy thereof. In the illustrated embodiment, the clutch assembly 700 further comprises an electromagnet 780 coupled (for example magnetically coupled) to the input shaft 750. In at least one embodiment, the electromagnet 780 is configured to magnetize the input shaft 750 when the electromagnet 780 is excited. According to one embodiment of the disclosure, the clutch assembly 700 further comprises one or more non-axial grooves 760a (for example, curved and / or helical, whether of constant pitch or variable pitch) located in an external surface of the input shaft 750. According to this embodiment of the disclosure, the clutch assembly 700 further comprises one or more first engagement elements 720a located in openings of first engagement elements 730a in the output coupler housing 710. The one or more first engagement elements 720, in at least the embodiment shown, comprise a ferromagnetic material and / or an alloy thereof.According to this embodiment, the first one or more engagement elements 720a are configured so as not to engage with the one or more non-axial grooves 760a when the output coupler housing 710 is in the decoupled state (for example, as illustrated in [Fig. 7A]), thus allowing the input shaft 750 and the output coupler housing 710 to rotate freely relative to each other. Similarly, the first one or more engagement elements 720a are configured to engage with the one or more non-axial grooves 760a when the output coupler housing 710 is in the coupled state, thereby fixing the input shaft 750 and the output coupler housing 710 in rotation relative to each other.Consequently, any rotation of the drive assembly, and therefore of the input shaft 750, will only move towards the output coupler housing 710, and thus the leadscrew of a mechanical linkage, when the output coupler housing 710 is in the coupled state. Otherwise, the drive assembly, and therefore the input shaft 750, and the output coupler housing 710, and thus the leadscrew of a mechanical linkage, . will rotate freely relative to each other. According to one embodiment of the disclosure, the clutch assembly 700 further includes a first engagement element spring 745a positioned in each of the first engagement element openings 730a, for example between each first engagement element 720a and the output coupler housing 710. The first engagement element springs 745a, in at least one embodiment, are configured to strain the first engagement elements 720a towards a radially outward state (for example, as illustrated in [Fig.7A]). According to one embodiment of the disclosure, the clutch assembly 700 further comprises one or more second grooves 760b (for example, one or more second ball grooves) located in an external surface of the input shaft 750. According to this embodiment of the disclosure, the clutch assembly 700 further comprises one or more second engagement elements 720b (for example, one or more ball elements) located in second engagement element openings 730b in the output coupler housing 710. The one or more second engagement elements 720b, in at least the embodiment shown, comprise a non-ferromagnetic material.According to this embodiment, the one or more second engagement elements 720b are configured so as not to engage with the one or more second grooves 760b when the output coupler housing 710 is in the decoupled or partially coupled state (for example, as illustrated in Figures 7A and 7B, respectively), and thus allow the input shaft 750 and the output coupler housing 710 to rotate at least partially relative to each other. Similarly, the one or more second engagement elements 720b are configured to engage with the one or more second grooves 760b when the output coupler housing 710 is in the coupled state, and thus to fix the input shaft 750 and the output coupler housing 710 in rotation relative to each other.Consequently, any rotation of the drive assembly, and therefore of the input shaft 750, will only move towards the output coupler housing 710, and thus the leadscrew of a mechanical linkage, when the output coupler housing 710 is in the coupled state. Otherwise, the drive assembly, and therefore the input shaft 750, and the output coupler housing 710, and thus the leadscrew of a mechanical linkage, will rotate freely relative to each other. According to one embodiment of the disclosure, the clutch assembly 700 further comprises a second engagement element spring 745b positioned in each of the second engagement element openings 730b, for example between each second engagement element 720b and the output coupler housing 710. The springs of second engagement elements 745b, in at least one embodiment, are configured to stress the second engagement elements 720b towards a radially inward state (for example, as illustrated in [Fig.7A]). In the embodiment of Figures 7A to 7C, the excitation of the electromagnet 780 magnetizes the input shaft 750, which in turn magnetically attracts one or more engagement elements 720a into one or more non-axial grooves 760a, as illustrated in [Fig. 7B]. As the input shaft 750 continues to rotate, the non-axial grooves 760a and the engagement elements 720a pull the output coupler housing 710 towards the electromagnet 780, which in turn causes one or more second engagement elements 720b to engage with their associated second grooves 760b, as shown in [Fig. 7C], and thus fix the input shaft 750 and the output coupler housing 710 in rotation relative to each other. In at least one embodiment, this occurs after the first one or more of the first engagement elements 720a come into contact with their one or more associated non-axial grooves 760a.Conversely, when the electromagnet 780 is no longer energized (for example, whether intentionally or not), the springs of the first engagement elements 745a return the first engagement elements 720a to their radially outward position. This, in turn, allows a shaft strain spring 740 to push the output coupler housing 710 away from the electromagnet 720, thus enabling the input shaft 750 and the output coupler housing 710 to rotate freely relative to each other again. It should be noted that the embodiment of Figures 7A to 7C can easily be reconfigured to use an input shaft and output coupler housing similar to those discussed above with respect to Figures 6C and 6D and remain within the scope of disclosure. The aspects disclosed here include: A. A clutch assembly, the clutch assembly comprising: 1) an output coupler housing configured to couple to a leadscrew of a mechanical linkage, the output coupler housing having a central opening extending at least partially through it; 2) an input shaft located at least partially within the central opening of the output coupler housing, the input shaft being configured to couple to an output of a drive assembly; 3) an electromagnet coupled to the input shaft, the electromagnet being configured to axially move the output coupler housing from a decoupled state to a coupled state when the electromagnet is energized; and 4) one or more grooves located in one of an external surface of the input shaft or an internal surface of the central opening and one or more engagement elements located in the other of the internal surface of the central opening or external surface of the input shaft: a) one or more engagement elements being configured not to engage with one or more grooves when the output coupler housing is in the uncoupled state to allow the input shaft and output coupler housing to rotate freely relative to each other; and 2) one or more engagement elements are configured to engage with one or more grooves when the output coupler housing is in the coupled state to fix the input shaft and output coupler housing in rotation relative to each other. B. A bottom relief valve (BRR), the bottom relief valve (BRR) comprising: 1) a valve body having a longitudinal bore extending axially through the valve body, the longitudinal bore being capable of carrying bottom production fluids through it; 2) a bore closure assembly disposed near one downhole end of the longitudinal bore; 3) a bore flow control actuator disposed in the central bore; 4) a mechanical linkage coupled to the bore flow control actuator, the mechanical linkage being capable of moving the bore flow control actuator between a closed state and a flow state to engage or disengage the bore closure assembly to determine a flow condition for bottom production fluids through the central bore; 5) a drive assembly coupled to the mechanical linkage;and 6) a clutch assembly positioned between the drive assembly and the mechanical linkage, the clutch assembly comprising: a) an output coupler housing configured to couple to a leadscrew of the mechanical linkage, the output coupler housing having a central opening extending at least partially through it; b) an input shaft located at least partially inside the central opening of the output coupler housing, the input shaft being coupled to an output of the drive assembly; c) an electromagnet coupled to the input shaft, the electromagnet being configured to axially move the output coupler housing from a decoupled state to a coupled state when the electromagnet is excited;and (d) one or more grooves located in one of an external surface of the input shaft or an internal surface of the central opening and one or more engagement elements located in the other of the internal surface of the central opening or the external surface of the input shaft: (i) the one or more engagement elements being configured not to engage with the one or more grooves when the output coupler housing is in the decoupled state to allow the input shaft and the output coupler housing to rotate freely relative to each other; and (ii) the one or more engagement elements being configured to engage with the one or more grooves when the output coupler housing is in the coupled state; fix the input shaft and the output coupler housing in rotation relative to each other. C. A method for operating a downhole safety valve (DSV), the method comprising: 1) supplying a downhole safety valve (DSV) to the bottom of a borehole inside a wellbore, the downhole safety valve (DSV) comprising: a) a valve body having a longitudinal bore extending axially through the valve body, the longitudinal bore being able to function to convey downhole production fluids through it; b) a bore closure assembly disposed near a downhole end of the longitudinal bore; c) a bore flow management actuator disposed in the central bore;d) a mechanical linkage coupled to the bore flow control actuator, the mechanical linkage being capable of operating to move the bore flow control actuator between a closed state and a flow state to engage or disengage the bore closure assembly in order to determine a bottom production fluid flow condition through the central bore; e) a drive assembly coupled to the mechanical linkage; and f) a clutch assembly positioned between the drive assembly and the mechanical linkage, the clutch assembly comprising: i) an output coupler housing configured to couple to a leadscrew of the mechanical linkage, the output coupler housing having a central opening extending at least partially through it;ii) an input shaft located at least partially inside the central opening of the output coupler housing, the input shaft being coupled to an output of the drive assembly; iii) an electromagnet coupled to the input shaft, the electromagnet being configured to axially move the output coupler housing from a decoupled state to a coupled state when the electromagnet is excited;and iv) one or more grooves located in one of an external surface of the input shaft or an internal surface of the central opening and one or more engagement elements located in the other of the internal surface of the central opening or the external surface of the input shaft, the one or more engagement elements being configured not to engage with the one or more grooves when the output coupler housing is in the decoupled state to allow the input shaft and the output coupler housing to rotate freely relative to each other; and the one or more engagement elements being configured to engage with the one or more grooves when the output coupler housing is in the coupled state to fix the input shaft and the output coupler housing in rotation relative to each other;and 2) the excitation of the electromagnet to axially move the output coupler housing from the decoupled state to the coupled state and thus fix in rotation the input shaft and the output coupler housing to move the control actuator; of bore flow from the closed state to the flow state. D. A clutch assembly, the clutch assembly comprising: 1) an output coupler housing configured to couple to a leadscrew of a mechanical linkage, the output coupler housing having a central opening extending at least partially through it; 2) an input shaft located at least partially inside the central opening of the output coupler housing, the input shaft being configured to couple to an output of a drive assembly; 3) one or more grooves located in an external surface of the input shaft and one or more engagement elements located in an internal surface of the central opening;and 4) an electromagnet coupled to the input shaft, the electromagnet being configured to magnetize the input shaft when the electromagnet is energized: a) one or more engagement elements being configured not to engage with one or more grooves when the electromagnet is de-energized and thus be in a decoupled state and allow the input shaft and the output coupler housing to rotate freely relative to each other; and b) one or more engagement elements being configured to engage with one or more grooves when the electromagnet is energized and thus be in a coupled state and fix the input shaft and the output coupler housing in rotation relative to each other. E. A bottom relief valve (BRR), the bottom relief valve (BRR) comprising: 1) a valve body having a longitudinal bore extending axially through the valve body, the longitudinal bore being capable of carrying bottom production fluids through it; 2) a bore closure assembly disposed near one downhole end of the longitudinal bore; 3) a bore flow control actuator disposed in the central bore; 4) a mechanical linkage coupled to the bore flow control actuator, the mechanical linkage being capable of moving the bore flow control actuator between a closed state and a flow state to engage or disengage the bore closure assembly to determine a flow condition for bottom production fluids through the central bore; 5) a drive assembly coupled to the mechanical linkage;and 6) a clutch assembly positioned between the drive assembly and the mechanical linkage, the clutch assembly comprising: a) an output coupler housing configured to couple to a leadscrew of a mechanical linkage, the output coupler housing having a central opening extending at least partially through it; b) an input shaft located at least partially inside the central opening of the output coupler housing, the input shaft being configured to couple to an output of a drive assembly; c) one or more grooves located in an external surface of the input shaft and one or more; engagement elements located in an internal surface of the central opening; and d) an electromagnet coupled to the input shaft, the electromagnet being configured to magnetize the input shaft when the electromagnet is energized: i) the one or more engagement elements being configured not to engage with the one or more grooves when the electromagnet is de-energized and thus be in a decoupled state and allow the input shaft and the output coupler housing to rotate freely relative to each other; and ii) the one or more engagement elements being configured to engage with the one or more grooves when the electromagnet is energized and thus be in a coupled state and fix the input shaft and the output coupler housing in rotation relative to each other. F. A method for operating a downhole safety valve (DSV), the method comprising: 1) supplying a downhole safety valve (DSV) to the bottom of a borehole inside a wellbore, the downhole safety valve (DSV) comprising: a) a valve body having a longitudinal bore extending axially through the valve body, the longitudinal bore being able to function to convey downhole production fluids through it; b) a bore closure assembly disposed near a downhole end of the longitudinal bore; c) a bore flow management actuator disposed in the central bore;d) a mechanical linkage coupled to the bore flow control actuator, the mechanical linkage being capable of operating to move the bore flow control actuator between a closed state and a flow state to engage or disengage the bore closure assembly in order to determine a bottom production fluid flow condition through the central bore; e) a drive assembly coupled to the mechanical linkage; and f) a clutch assembly positioned between the drive assembly and the mechanical linkage, the clutch assembly comprising: i) an output coupler housing configured to couple to a leadscrew of a mechanical linkage, the output coupler housing having a central opening extending at least partially through it;(ii) an input shaft located at least partially inside the central opening of the output coupler housing, the input shaft being configured to couple to an output of a drive assembly; (iii) one or more grooves located in an external surface of the input shaft and one or more engagement elements located in an internal surface of the central opening; and (iv) an electromagnet coupled to the input shaft, the electromagnet being configured to magnetize the input shaft when the electromagnet is energized: the one or more engagement elements being configured not to engage with the one or more grooves when the electromagnet is de-energized and thus be in a decoupled state and allow the input shaft and the output coupler housing to rotate; freely relative to each other; and the one or more engagement elements being configured to engage with the one or more grooves when the electromagnet is excited and thus be in a coupled state and fix in rotation the input shaft and the output coupler housing relative to each other; and 2) the excitation of the electromagnet to axially move the output coupler housing from the decoupled state to the coupled state and thus fix in rotation the input shaft and the output coupler housing to move the bore flow management actuator from the closed state to the flow state. G. A clutch assembly, the clutch assembly comprising: 1) an output coupler housing configured to couple to a leadscrew of a mechanical linkage, the output coupler housing having a central opening extending at least partially through it; 2) an input shaft located at least partially inside the central opening of the output coupler housing, the input shaft being configured to couple to an output of a drive assembly; 3) one or more grooves located in an internal surface of the central opening and one or more engagement elements located in an external surface of the input shaft;and 4) an electromagnet coupled to the output coupler housing, the electromagnet being configured to magnetize the output coupler housing when the electromagnet is energized: a) one or more engagement elements being configured not to engage with one or more grooves when the electromagnet is de-energized and thus be in a decoupled state and allow the input shaft and the output coupler housing to rotate freely relative to each other; and b) one or more engagement elements being configured to engage with one or more grooves when the electromagnet is energized and thus be in a coupled state and fix the input shaft and the output coupler housing in rotation relative to each other. H. A bottom relief valve (BRR), the bottom relief valve (BRR) comprising: 1) a valve body having a longitudinal bore extending axially through the valve body, the longitudinal bore being capable of carrying bottom production fluids through it; 2) a bore closure assembly disposed near one downhole end of the longitudinal bore; 3) a bore flow control actuator disposed in the central bore; 4) a mechanical linkage coupled to the bore flow control actuator, the mechanical linkage being capable of moving the bore flow control actuator between a closed state and a flow state to engage or disengage the bore closure assembly to determine a flow condition for bottom production fluids through the central bore; 5) a drive assembly coupled to the mechanical linkage;and 6) a clutch assembly positioned between the drive assembly and the linkage; mechanical, the clutch assembly comprising: a) an output coupler housing configured to couple to a leadscrew of a mechanical linkage, the output coupler housing having a central opening extending at least partially through it; b) an input shaft located at least partially inside the central opening of the output coupler housing, the input shaft being configured to couple to an output of a drive assembly; c) one or more grooves located in an internal surface of the central opening and one or more engagement elements located in an external surface of the input shaft;and d) an electromagnet coupled to the output coupler housing, the electromagnet being configured to magnetize the output coupler housing when the electromagnet is energized: i) one or more engagement elements being configured not to engage with one or more grooves when the electromagnet is de-energized and thus be in a decoupled state and allow the input shaft and the output coupler housing to rotate freely relative to each other; and ii) one or more engagement elements being configured to engage with one or more grooves when the electromagnet is energized and thus be in a coupled state and fix the input shaft and the output coupler housing in rotation relative to each other. I. Method of operating a downhole safety valve (DSV), the method comprising: 1) the provision of a downhole safety valve (DSV) at the bottom of the borehole inside a borehole, the downhole safety valve (DSV) comprising: a) a valve body having a longitudinal bore extending axially through the valve body, the longitudinal bore being able to function to convey downhole production fluids through it; b) a bore closure assembly disposed near a downhole end of the longitudinal bore; c) a bore flow management actuator disposed in the central bore;d) a mechanical linkage coupled to the bore flow control actuator, the mechanical linkage being capable of operating to move the bore flow control actuator between a closed state and a flow state to engage or disengage the bore closure assembly in order to determine a bottom production fluid flow condition through the central bore; e) a drive assembly coupled to the mechanical linkage; and f) a clutch assembly positioned between the drive assembly and the mechanical linkage, the clutch assembly comprising: i) an output coupler housing configured to couple to a leadscrew of a mechanical linkage, the output coupler housing having a central opening extending at least partially through it;ii) an input shaft located at least partially inside the central opening of the output coupler housing, the input shaft being configured to couple to an output of a drive assembly; iii) one or more grooves located in an internal surface of; the central opening and one or more engagement elements located in an external surface of the input shaft; and iv) an electromagnet coupled to the output coupler housing, the electromagnet being configured to magnetize the output coupler housing when the electromagnet is energized: the one or more engagement elements being configured not to engage with the one or more grooves when the electromagnet is de-energized and thus be in a decoupled state and allow the input shaft and the output coupler housing to rotate freely relative to each other; and the one or more engagement elements being configured to engage with the one or more grooves when the electromagnet is energized and thus be in a coupled state and fix the input shaft and the output coupler housing in rotation relative to each other;and 2) the excitation of the electromagnet to bring one or more engagement elements into contact with one or more grooves and thus be in the coupled state and fix the input shaft and the output coupler housing in rotation relative to each other. ; Aspects A, B, C, D, E, F, G, H, and I may have one or more of the following additional elements in combination: Element 1: wherein the output coupler housing comprises a ferromagnetic material. Element 2: further comprising a shaft tension spring located in the central opening between the input shaft and the output coupler housing, the shaft tension spring being configured to tension the output coupler housing toward the decoupled state. Element 3: wherein one or more grooves are located in the external surface of the input shaft and one or more engagement elements are located in engagement element openings in the output coupler housing.Element 4: wherein one or more grooves are positioned such that one or more engagement elements are aligned with an ungrooved section of the input shaft when the output coupler housing is in the uncoupled state and are aligned with a grooved section of the input shaft when the output coupler housing is in the coupled state. Element 5: wherein one or more grooves are a plurality of splines and one or more engagement elements are a plurality of ball elements. Element 6: further comprising a ball element spring positioned in each of the engagement element openings between each ball element and the output coupler housing, the ball element springs being configured to strain the ball elements toward an inward radial state.Element 7: wherein one or more grooves are located in the internal surface of the output coupler housing and one or more engagement elements are located in engagement element openings in the input shaft. Element 8: further comprising the de-excitation of the electromagnet after the excitation of the electromagnet, the de-excitation enabling the output coupler housing to... transitioning from the coupled state to the decoupled state to allow the input shaft and the output coupler housing to rotate freely relative to each other. Element 9: further comprising a shaft tension spring located in the central opening between the input shaft and the output coupler housing, the shaft tension spring returning the output coupler housing from the coupled state to the decoupled state during de-excitation and thus allowing the bore flow control actuator to return to the closed state.Element 10: wherein one or more grooves are located in the external surface of the input shaft and one or more engagement elements are located in engagement element openings in the output coupler housing, and wherein further wherein one or more grooves are positioned such that one or more engagement elements are aligned with an ungrooved section of the input shaft when the output coupler housing is in the uncoupled state and are aligned with a grooved section of the input shaft when the output coupler housing is in the coupled state. Element 11: wherein the input shaft comprises a ferromagnetic material. Element 12: wherein the input shaft is configured to magnetically attract one or more engagement elements into one or more grooves and thus be in the coupled state when the electromagnet is energized.Element 13: wherein one or more of the engagement elements comprise a ferromagnetic material. Element 14: wherein the output coupler housing comprises a non-ferromagnetic material. Element 15: wherein one or more of the grooves are axial grooves. Element 16: wherein one or more of the grooves are non-axial grooves. Element 17: wherein one or more non-axial grooves are first non-axial grooves and one or more of the engagement elements are first engagement elements, and further comprising one or more second grooves located in an external surface of the input shaft and one or more second engagement elements located in an internal surface of the central opening.Element 18: wherein one or more second engagement elements are configured to engage with one or more second grooves after one or more first engagement elements have engaged with and at least partially rotated within one or more non-axial grooves. Element 19: wherein one or more engagement elements are one or more non-ferromagnetic ball elements located in one or more ball element openings in the external coupler housing. Element 20: further comprising a ball element spring positioned in each of the ball element openings between each ball element and the external coupler housing, the ball element springs being configured to stress the ball elements toward an inward radial state. Element 21: further comprising a stress spring. A shaft connection located in the central opening between the input shaft and the output coupler housing, the shaft tension spring being configured to tension the output coupler housing towards the decoupled state. Element 22: wherein one or more engagement elements are located in engagement element openings in the output coupler housing, and further comprising an engagement element spring positioned in each of the engagement element openings between each engagement element and the external coupler housing, the engagement element springs being configured to tension the engagement elements towards a radially outward state.Element 23: further comprising the de-excitation of the electromagnet after its excitation, the de-excitation allowing one or more engagement elements to disengage from one or more grooves and thus to be in the decoupled state, enabling the input shaft and the output coupler housing to rotate freely relative to each other. Element 24: further comprising a shaft tension spring located in the central opening between the input shaft and the output coupler housing, the shaft tension spring being configured to tension the output coupler housing towards the decoupled state.Element 25: wherein one or more engaging elements are located in engaging element openings in the output coupler housing, and further comprising an engaging element spring positioned in each of the engaging element openings between each engaging element and the external coupler housing, the de-excitation enabling the engaging element springs to return the engaging elements to the radially outward state. Element 26: wherein the output coupler housing comprises a ferromagnetic material. Element 27: wherein the output coupler housing is configured to magnetically attract one or more engaging elements into one or more grooves and thus be in the coupled state when the electromagnet is energized. Element 28: wherein one or more engaging elements comprise a ferromagnetic material.Element 29: wherein the input shaft comprises a non-ferromagnetic material. Element 30: wherein one or more grooves are axial grooves. Element 31: wherein one or more grooves are non-axial grooves. Element 32: wherein one or more engagement elements are located in engagement element openings in the input shaft, and further comprising an engagement element spring positioned in each of the engagement element openings between each engagement element and the input shaft, the engagement element springs being configured to drive the engagement elements to a radially inward state. Element 33: further comprising the de-excitation of the electromagnet after excitation. The electromagnet, the de-excitation allowing one or more engagement elements to disengage from one or more grooves and thus be in a decoupled state, allowing the input shaft and the output coupler housing to rotate freely relative to each other. Element 34: wherein the output coupler housing comprises a ferromagnetic material, the one or more engagement elements comprise a ferromagnetic material, and the input shaft comprises a non-ferromagnetic material.Element 35: wherein one or more engagement elements are located in engagement element openings in the input shaft, and further comprising an engagement element spring positioned in each of the engagement element openings between each engagement element and the input shaft, the engagement element springs being configured to strain the engagement elements towards an inward radial state. The person skilled in the art concerned with this request will understand that other additions, deletions, substitutions and modifications may be made to the methods of implementation described.
Claims
Demands
1. Clutch assembly (500a), comprising: an output coupler box (510) configured to couple to a lead screw of a mechanical link, the output coupler housing having a central opening (515) extending at least partially through this one; an input tree (550) located at least partially inside the central opening (515) of the output coupler housing (510), the shaft input being configured to couple to an output of a set training; an electromagnet (580) coupled to the input shaft (550), the electromagnet being configured to axially move the output coupler housing (510) from a decoupled state to a coupled state when the electromagnet is excited; and one or more grooves (560) located in one of an external surface of the input shaft (550) or an internal surface of the central opening (515) and one or more interlocking elements (520) located in the other of the internal surface of the central opening (515) or of the external surface of the input shaft (550), in which: one or more of the plugging elements (520) are configured for not to come into contact with one or more grooves (560) when the output coupler housing (510) is in the decoupled state to allow the input shaft (550) and the output coupler housing (510) to rotate freely in relation to each other; and one or more of the plugging elements (520) are configured for come into contact with one or more grooves (560) when the housing The output coupler (510) is in the coupled state to prevent rotation the input shaft (550) and the output coupler housing (510) one by relationship to the other.
2. Clutch assembly according to claim 1, wherein the housing of output coupler comprises a ferromagnetic material.
3. Clutch assembly according to claim 1, further comprising a shaft tension spring (540) located in the central opening (515) between the input shaft (550) and the output coupler housing (510), the shaft load spring being configured to load the housing output coupler (510) to the decoupled state.
4. Clutch assembly according to claim 1, wherein the one or several grooves (560) are located in the outer surface of the shaft input (550) and one or more engagement elements (520) are located in the openings of the engagement element in the output coupler housing.
5. Clutch assembly according to claim 4, wherein one or several grooves are positioned so that one or more engagement elements (520) are aligned with a non-section grooved (560a) of the input shaft (550) when the coupler housing output (510) is in the decoupled state and is aligned with a section grooved (560b) of the input shaft (550) when the coupler housing output (510) is in the coupled state.
6. Clutch assembly according to claim 5, wherein one or several grooves (560) are a plurality of flutes and the one or several engagement elements (520) are a plurality of elements to ball, or possibly also including a ball element spring positioned in each of the openings of the interlocking element between each ball element and the output coupler housing, the springs ball element being configured to stress the ball elements towards a state radially inwards.
7. Clutch assembly according to claim 1, wherein the one or several grooves (560) are located in the internal surface of the housing of output coupler and one or more of the interlocking elements are located in the openings of the engagement element in the tree entry.
8. Bottom safety valve (SSSV) (170), comprising: a valve body (205) having a longitudinal bore (220) extending axially through the valve body, the longitudinal bore capable of operating to transport bottom production fluids to through this one; a bore closure assembly (250) disposed near a bottom end of the longitudinal bore; a bore flow control actuator disposed in the bore central; a mechanical link coupled to the flow management actuator of bore, the mechanical linkage can function to move the bore flow management actuator between a closed state and a flow state to engage or release the entire assembly bore closure in order to determine a flow condition of the bottom production fluids through the central bore; a drive assembly (240) coupled to the mechanical linkage; and a clutch assembly (255, 500a) positioned between the assembly drive and mechanical linkage, the clutch assembly including: an output coupler box (510) configured to couple to a lead screw of the mechanical linkage, the output coupler housing having a central opening (515) extending at least partially through this one; an input tree (550) located at least partially inside the central opening (515) of the output coupler housing (510), the shaft input being coupled to an output of the drive assembly; an electromagnet (580) coupled to the input shaft (550), the electromagnet being configured to axially move the output coupler housing (510) from a decoupled state to a coupled state when the electromagnet is excited; and one or more grooves (560) located in one of an external surface of the input shaft (550) or an internal surface of the central opening (515) and one or more interlocking elements (520) located in the other of the internal surface of the central opening (515) or of the external surface of the input shaft (550), in which: one or more of the plugging elements (520) are configured for not to come into contact with one or more grooves (560) when the output coupler housing (510) is in the decoupled state to allow the input shaft (550) and the output coupler housing (510) to rotate freely in relation to each other; and one or more of the plugging elements (520) are configured for come into contact with one or more grooves (560) when the housing The output coupler (510) is in the coupled state to prevent rotation the input shaft (550) and the output coupler housing (510) one by relationship to the other.
9. Bottom safety valve (SSSV) according to claim 8, in which the output coupler housing comprises a material (erroma- genetics.
10. Bottom safety valve (SSSV) according to claim 8, comprising in addition a shaft tension spring (540) located in the opening central (515) between the input shaft (550) and the coupler housing output (510), the shaft tension spring being configured for to move the output coupler housing (510) to the decoupled state.
11. Bottom safety valve (SSSV) according to claim 8, in in which one or more grooves (560) are located in the surface external input tree (550) and one or more setting elements in grip (520) are located in gripping element openings in the output coupler housing, or possibly in which the one or more grooves are positioned so that one or several interlocking elements (520) are aligned with a section non-grooved (560a) of the input shaft (550) when the housing of output coupler (510) is in the decoupled state and aligned with a section grooved (560b) of the input shaft (550) when the coupler housing output (510) is in the coupled state, or possibly in which the one or more grooves (560) are a plurality of flutes and the one or several engagement elements (520) are a plurality ball elements, or possibly also including a spring ball element positioned in each of the element openings engagement between each ball element and the coupler housing exit, the ball element springs being configured to stress the ball elements towards a radially inwards state.
12. Bottom safety valve (SSSV) according to claim 8, in in which one or more grooves (560) are located in the surface internal to the output coupler housing and one or more elements The engagement points are located in the openings of the engagement element. taken from the input tree.
13. Method of operating a bottom safety valve (BSV) (170), comprising: the supply of a bottom safety valve (SSSV) at the bottom of the hole to inside a borehole, the bottom safety valve (BSV) including: a valve body (205) having a longitudinal bore (220) extending axially through the valve body, the longitudinal bore capable of operating to transport bottom production fluids to through this one; a bore closure assembly (250) disposed near a bottom end of the longitudinal bore; a bore flow control actuator disposed in the bore central; a mechanical link coupled to the flow management actuator of bore, the mechanical linkage can operate to move the bore flow management actuator between a closed state and a flow state to engage or disengage the bore closure assembly in order to determine a bottom production fluid flow condition through the central bore; a drive assembly (240) coupled to the mechanical linkage; and a clutch assembly (255, 500a) positioned between the drive assembly and the mechanical linkage, the clutch assembly comprising: an output coupler housing (510) configured to couple to a lead screw of the mechanical linkage, the output coupler housing having a central opening (515) extending at least partially through it; an input shaft (550) located at least partially inside the central opening (515) of the output coupler housing (510), the input shaft being coupled to an output of the drive assembly; an electromagnet (580) coupled to the input shaft (550), the electromagnet being configured to axially move the output coupler housing (510) from a decoupled state to a coupled state when the electromagnet is energized; and one or more grooves (560) located in one of an external surface of the input shaft (550) or an internal surface of the central opening (515) and one or more engagement elements (520) located in the other of the internal surface of the central opening (515) or the external surface of the input shaft (550), wherein: The one or more engagement elements (520) are configured so as not to engage with the one or more grooves (560) when the output coupler housing (510) is in the decoupled state to allow the input shaft (550) and the output coupler housing (510) to rotate freely relative to each other; and The one or more engagement elements (520) are configured to engage with the one or more grooves (560) when the output coupler housing (510) is in the coupled state to rotationally fix the input shaft (550) and the output coupler housing (510) relative to each other; and the excitation of the electromagnet to axially move the output coupler housing from the decoupled state to the coupled state and thus fix the input shaft and the output coupler housing in rotation to move the bore flow management actuator from the closed state to the state flow.
14. A method according to claim 13, further comprising de-excitation of the electromagnet after the excitation of the electromagnet, the de-excitation allowing the output coupler box to switch back from the coupled state to the decoupled state to allow the input shaft and the housing to output coupler to rotate freely relative to each other, or possibly also including a shaft tension spring {540) located in the central opening (515) between the input tree (550) and the output coupler housing (510), the shaft tension spring returning the output coupler box from the coupled state to the state decoupled during de-excitation, thus allowing the actuator to management of bore flow to return to the closed state.
15. | Method according to claim 13, wherein one or more grooves (560) are located in the external surface of the input shaft (550) and one or more of the engagement elements (520) are located in the openings of the connection element in the housing of output coupler, and in which furthermore one or more grooves are positioned so that one or more elements of the layout socket (520) are aligned with an ungrooved section (560a) of the shaft input (550) when the output coupler box (510) is in the state decoupled and are aligned with a grooved section (560b) of the shaft input (550) when the output coupler box (510) is in the state couple.