A multifunctional casing tool

Abstract

The present invention provides a multifunctional casing tool, which can meet the functions of thread protector buckle installation and removal, automatic diameter adjustment and casing length measurement. The multifunctional casing tool comprises: a telescopic component, a casing body clamping component, a rotating component and a thread protector clamping component. The telescopic component is parallel to the horizontal extension direction of the casing; the top of the casing body clamping component is connected to one end of the telescopic component, and the casing body clamping component is sleeved on the casing body and fixes the casing body; the top of the rotating component is connected to the other end of the telescopic component, and the rotating component and the casing body clamping component are located on the same side of the telescopic component; the thread protector clamping component is arranged at the bottom of the rotating component, and the thread protector clamping component clamps the edge protrusion of the thread protector.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary tools for petroleum special pipes, in particular to a multifunctional casing tool. Background Art

[0002] According to oil operation standards, before running casing, the length of each pipe should be measured using a standard drift gauge. In practice, a single team member performs this task, which is time-consuming and laborious when removing the casing thread caps and drift gauges. Measuring casing length requires four technicians working together. Using a tape measure to measure each pipe individually can easily lead to omissions by recorders if the length of several consecutive pipes is the same. Furthermore, this method is inefficient for large quantities of casing in stacked layers. Summary of the Invention

[0003] The object of the present invention is to provide a multifunctional casing tool, which can meet the functions of making and breaking out the wire protector, automatically adjusting the diameter and measuring the length of the casing.

[0004] The embodiment of the present invention is achieved as follows:

[0005] A multifunctional casing tool comprises: a telescopic assembly, a casing body clamping assembly, a rotating assembly and a wire guard clamping assembly, the telescopic assembly is parallel to the horizontal extension direction of the casing; the top of the casing body clamping assembly is connected to one end of the telescopic assembly, and the casing body clamping assembly is sleeved on the casing body and fixes the casing body; the top of the rotating assembly is connected to the other end of the telescopic assembly, and the rotating assembly and the casing body clamping assembly are located on the same side of the telescopic assembly; the wire guard clamping assembly is arranged at the bottom of the rotating assembly, and the wire guard clamping assembly clamps the edge protrusion of the wire guard.

[0006] In a preferred embodiment of the present invention, the above-mentioned wire guard clamping assembly includes: a clamping disk, the back of the clamping disk is provided with a connecting shaft connected to the rotating assembly, the front is provided with a clamp for clamping the wire guard, and the front is opposite to the sleeve body clamping assembly.

[0007] In a preferred embodiment of the present invention, the above-mentioned clip includes: a first clip, a clip adjustment member and a second clip, the first clip is fixedly arranged vertically on the edge of the clamping disk; the clip adjustment member is located on the connecting line between the first clip and the center of the clamping disk; the second clip is connected to one end of the clip adjustment member, and the second clip expands or reduces the distance between the first clip and the second clip through the extension and contraction of the clip adjustment member.

[0008] In a preferred embodiment of the present invention, the clamping surfaces of the first clamping piece and the second clamping piece are provided with serrated lines.

[0009] In a preferred embodiment of the present invention, the above-mentioned wire guard clamping assembly further includes: an infrared distance measuring sensor, which is arranged on the front side of the clamping disk and is located on the line connecting the clamp and the center of the clamping disk.

[0010] In a preferred embodiment of the present invention, the wire protector clamping assembly further comprises: a radius of the reflective plate is larger than a distance from a point on a line connecting the clamp and the center of the clamping disk to the center of the clamping disk.

[0011] In a preferred embodiment of the present invention, the above-mentioned sleeve body clamping assembly includes: a connecting ring, an electric telescopic rod and a friction plate. The top of the connecting ring is connected to the telescopic assembly, and the annular body of the connecting ring is provided with a first through hole; the electric telescopic rod is fixedly installed in the first through hole; the friction plate is connected to the movable rod of the electric telescopic rod, and the friction plate is arc-shaped.

[0012] In a preferred embodiment of the present invention, a serrated pattern is provided on the contact surface between the friction plate and the sleeve body.

[0013] In a preferred embodiment of the present invention, the above-mentioned telescopic assembly includes: a supporting tube, a telescopic unit and a connecting tube, the supporting tube is fixedly connected to the sleeve body clamping assembly; the telescopic unit is arranged in the supporting tube; the connecting tube is inserted into the supporting tube, and the connecting tube is connected to the movable rod of the telescopic unit so that the connecting tube can be stored in the supporting tube or extended out of the supporting tube.

[0014] In a preferred embodiment of the present invention, a handle is provided outside the support tube.

[0015] The beneficial effects of the embodiments of the present invention are as follows: the multifunctional casing tool in the present invention is provided with a telescopic assembly, the two ends of the telescopic assembly are respectively connected to the casing body clamping assembly and the rotating assembly, the casing body clamping assembly is used to stably connect the casing body, the rotating assembly is connected to the wire guard clamping assembly, the wire guard clamping assembly stably clamps the wire guard, and the wire guard clamping assembly is driven to rotate by the rotating assembly, so that the wire guard loading and unloading work can be easily completed; at the same time, an infrared ranging sensor or a reflective plate is provided on the wire guard clamping assembly, so that the casing tool equipped with the infrared ranging sensor and the casing tool equipped with the reflective plate form a set of multifunctional casing tools that can measure the casing length and judge whether the diameter is normal, which is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of the casing tool according to an embodiment of the present invention when assembled;

[0018] Figure 2This is a schematic structural diagram of a casing tool during disassembly according to an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the structure of a clamping disk according to an embodiment of the present invention;

[0020] Figure 4 This is an enlarged structural diagram of a clamping disk at position A according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic structural diagram of a casing tool installed on a casing according to an embodiment of the present invention;

[0022] Figure 6 This is a structural schematic diagram of a casing tool for removing a thread protector according to an embodiment of the present invention;

[0023] Figure 7 This is a structural schematic diagram of an embodiment of the present invention in which the clamping disk is a reflective plate;

[0024] Figure 8 This is a schematic structural diagram of an embodiment of the present invention in a measurement state;

[0025] Icons: 100-telescopic assembly; 200-sleeve body clamping assembly; 300-rotating assembly; 400-thread guard clamping assembly; 001-sleeve body; 002-thread guard; 410-clamping disk; 411-connecting shaft; 412-clamping rod; 413-first clip; 414-clip adjustment piece; 415-second clip; 416-infrared ranging sensor; 417-reflector; 210-connecting collar; 220-first electric telescopic rod; 230-friction plate; 110-support tube; 120-telescopic unit; 130-connecting tube; 121-low-speed motor; 122-screw; 111-power supply; 112-handle; 310-connecting rod; 320-high-torque motor. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0031] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] First embodiment

[0033] See Figure 1-2 The present embodiment provides a multifunctional casing tool, which includes: a telescopic assembly 100, a casing body clamping assembly 200, a rotating assembly 300 and a wire guard clamping assembly 400. The telescopic assembly 100 is parallel to the horizontal extension direction of the casing; the top of the casing body clamping assembly 200 is connected to one end of the telescopic assembly 100, and the casing body clamping assembly 200 is sleeved on the casing body 001 and fixes the casing body 001; the top of the rotating assembly 300 is connected to the other end of the telescopic assembly 100, and the rotating assembly 300 and the casing body clamping assembly 200 are located on the same side of the telescopic assembly 100; the wire guard clamping assembly 400 is arranged at the bottom of the rotating assembly 300, and the wire guard clamping assembly 400 clamps the edge protrusion of the wire guard 002.

[0034] During use, the casing tool is placed on the casing, with the casing body clamping assembly 200 clamping the casing and the thread protector clamping assembly 400 clamping the edge of the thread protector. The thread protector clamping assembly 400 is rotated by the rotating assembly 300, while the telescopic assembly 100 is extended to unscrew the thread protector 002. If the thread protector 002 needs to be tightened, the rotating assembly 300 is reversed to rotate the thread protector clamping assembly 400, and the telescopic assembly 100 is continuously shortened to install the thread protector 002.

[0035] See Figure 3 and 4 The wire guard cap clamping assembly 400 in this embodiment includes: a clamping disk 410, a connecting shaft 411 connected to the rotating assembly 300 is provided on the back of the clamping disk 410, and a clamp for clamping the wire guard 002 is provided on the front, and the front is opposite to the sleeve body clamping assembly 200.

[0036] More specifically, to reduce weight while ensuring effectiveness, the clamping disc 410 in this embodiment includes three clamping rods 412 and a connecting shaft 411. The three clamping rods 412 form a circular disc surface, and the connecting shaft 411 is disposed on the back of the clamping disc 410 and connected to the rotating assembly 300. In other embodiments, a different number of clamping rods 412 or a full-surface clamping disc 410 may be used to achieve the same clamping effect.

[0037] The clamp in this embodiment includes: a first clamp 413, a clamp adjustment piece 414 and a second clamp 415. The first clamp 413 is fixedly arranged vertically on the edge of the clamping disk 410, and in this embodiment is located at the end of the clamping rod 412; the clamp adjustment piece 414 is located on the connecting line between the first clamp 413 and the center of the clamping disk 410. More specifically, the clamping rod 412 in this embodiment is provided with a groove for placing the clamp adjustment piece 414. The clamp adjustment piece 414 is a second electric telescopic rod. In other embodiments, the clamp adjustment piece 414 can also adopt an electric screw rod to adjust the spacing or other spacing adjustment methods; the second clamp 415 is connected to one end of the clamp adjustment piece 414, and the second clamp 415 expands or reduces the distance between the first clamp 413 and the second clamp 415 through the expansion and contraction of the clamp adjustment piece 414. In this embodiment, the second clamp 415 is connected to the telescopic rod of the electric telescopic rod. In order to ensure the stability of clamping, the clamping surfaces of the first clamping piece 413 and the second clamping piece 415 in this embodiment are provided with serrated lines to increase the contact friction between the clamping pieces and the wire protection cap 002.

[0038] See Figure 6 and 7 In this embodiment, there are two types of wire guard clamping assemblies 400 , one is equipped with an infrared ranging sensor 416 , and the other is equipped with a reflective plate 417 .

[0039] The infrared distance measuring sensor 416 is arranged on the front of the clamping plate 410 and is located on the line connecting the clamp and the center of the clamping plate 410. In this embodiment, there are three infrared distance measuring sensors 416, which are respectively arranged on each clamping rod 412.

[0040] The reflector 417 can cover the installation position of the infrared distance sensor 416. When measuring the length of the casing and judging abnormalities in the diameter, a casing tool equipped with the infrared distance sensor 416 and the reflector 417 is installed at both ends of the casing. If infrared light is reflected back, the diameter is normal and the distance measurement is performed by infrared light. In this embodiment, the reflector 417 is a whole circular reflector 417, and the radius of the reflector 417 is greater than the distance from the infrared distance sensor 416 to the center of the circle. In other embodiments, a small reflector 417 can also be set at the corresponding position of the infrared distance sensor 416 to reflect infrared light.

[0041] The sleeve body clamping assembly 200 in this embodiment includes: a connecting collar 210, a first electric telescopic rod 220, and a friction plate 230. The top of the connecting collar 210 is connected to the telescopic assembly 100. The annular body of the connecting collar 210 is provided with a first through-hole 211. More specifically, in this embodiment, the first through-hole 211 is located at a 120-degree angle to the inner circle of the connecting collar 210. The first electric telescopic rod 220 is fixedly mounted within the first through-hole 211. The center of the back of the friction plate 230 is connected to the movable rod of the first electric telescopic rod 220. The friction plate 230 is arc-shaped, and the contact surface between the friction plate 230 and the sleeve body 001 is provided with a serrated pattern. The serrated pattern on the friction plate 230 surface increases the frictional force with the sleeve body 001.

[0042] The telescopic assembly 100 includes: a support tube 110, a telescopic unit 120 and a connecting tube 130. The support tube 110 is fixedly connected to the sleeve body clamping assembly 200; the telescopic unit 120 is arranged in the support tube 110; the connecting tube 130 is inserted into the support tube 110, and the connecting tube 130 is connected to the movable rod of the telescopic unit 120 so that the connecting tube 130 can be stored in the support tube 110 or extended out of the support tube 110.

[0043] More specifically, the telescopic assembly 120 in this embodiment includes a low-speed motor 121 and a screw 122. When the low-speed motor 121 is activated, it controls the transmission of the screw 122, so that the connecting cylinder 130 connected to the screw 122 can be extended out of the support cylinder 110 or retracted into the support cylinder 110. To facilitate the operator's lifting and lowering, the support cylinder 110 is also provided with a handle 112.

[0044] The rotating assembly 300 in this embodiment includes a connecting rod 310 and a high-torque motor 320 . The connecting rod 310 is connected to the connecting cylinder 130 . The high-torque motor 320 is arranged at the bottom of the connecting rod 310 and is connected to the connecting shaft 411 of the clamping disk 410 .

[0045] The support tube 110, connecting tube 130, and connecting rod 310 in this embodiment are hollow to facilitate wiring and reduce weight. Also housed within the hollow support tube 110 is a power supply 111 for powering the motor and sensors on the multifunctional casing tool, as well as a control panel for selecting casing tool functions and adjusting speed. The support tube 110 in this embodiment also features a display screen for instantly displaying measurement data for ease of operation.

[0046] See Figure 5 and 6 The thread guard installation and removal method of the multifunctional casing tool in this embodiment is as follows: the operator places the casing tool onto the casing, positions the casing body clamping assembly 200 on the casing, and positions the thread guard clamping assembly 400 on the thread guard 002. The control panel then controls the clamping plate 410 and the second and first electric telescopic rods 220 on the connecting collar 210 to extend, causing the second clamping plate 415 and the friction plate 230 to contact, pre-tighten, and clamp the thread guard 002 and the casing, respectively. The control panel then controls the rotation of the high-torque motor 320 and the low-speed motor 121. The high-torque motor 320 transmits torque to the clamping plate 410, rotating the thread guard 002. Simultaneously, the low-speed motor 121 drives the screw rod 122 to rotate. Since the connecting cylinder 130 is movable relative to the support cylinder 110, the rotation of the screw rod 122 can further move the connecting cylinder 130 forward, removing the casing thread. If the casing thread is to be installed, the high-torque motor 320 and the low-speed motor 121 can be controlled to rotate in reverse.

[0047] The method for measuring the casing and the diameter of the multifunctional casing tool in this embodiment is as follows:

[0048] The cannula has a male and female end. In this embodiment, the female end uses a cannula tool equipped with a reflector, while the male end uses a cannula tool equipped with an infrared distance sensor 416. After the thread protector 002 is unscrewed, the control board controls the low-speed motors 121 at the male and female ends to reverse, driving the thread protector clamping assembly 400 to reset. When the clamping plate 410 approaches the end faces of the male and female ends, the low-speed motors 121 stop, and the infrared distance sensor 416 is activated to emit infrared rays. If there is no foreign matter in the cannula, all three infrared rays will be reflected, indicating that the path is normal. The cannula length is then measured based on the infrared return time. The principle of infrared distance measurement in this embodiment is to use CCD image processing to receive the time difference between transmission and reception, and calculate the cannula length after processing by the signal processor.

[0049] The control flow method in this embodiment includes:

[0050] After inserting the casing tool onto the pin and box ends, the operator selects make-up or break-out mode. Initial values are set on the control panel for each mode, and the corresponding initial values are automatically activated upon activation. Initial parameters include: screw 122 stroke L (make-up mode L = A, break-out mode L = 0), motor speed n = B, pressure preset F = C, and telescopic rod extension K = 0.

[0051] After the shackle mode is selected, the initial value group of the shackle is executed, and the first electric telescopic rod 220 and the second electric telescopic rod on the sleeve body clamping assembly 200 and the screw cap clamping assembly 400 are controlled so that the pressing force reaches the set threshold to clamp the sleeve and the screw cap 002, and the low-speed motor 121 is controlled to rotate forward. When the screw rod 122 stroke L = A (the value of A is slightly larger than the length of the thread between the screw cap 002 and the sleeve buckle), it means that the screw cap 002 has been screwed out of the sleeve. At this time, the screw cap clamping assembly is controlled. The first electric telescopic rod 220 on component 400 retracts, releasing the thread guard 002 and controlling the motor to reverse. When the threaded rod 122 reaches travel L = 0, the infrared sensor is close to the threaded end face. The infrared sensor is activated, emitting three infrared beams. These beams reach the reflector 417, return to the sensor, and receive the signal for analysis. If the electrical signal of the three returning infrared beams is not 0, it indicates that there is no foreign object in the casing. If one or more of the signals are 0, it indicates that there is a foreign object in the casing. If there is no foreign object, the return signal is calculated, and the casing length is calculated based on the time difference between the transmission and return and the transmission frequency. If there is a foreign object, a buzzer is activated to sound an alarm, notifying the operator to perform physical clearance. In this embodiment, the buzzer is electrically connected to the controller.

[0052] Select the make-up mode, execute the initial value group of the make-up mode, control the telescopic rod so that the clamping force reaches the set threshold, control the low-speed motor 121 to reverse, and when the screw rod 122 stroke L = 0, it means that the screw cap 002 has been screwed into the casing. At this time, stop the motor, start the buzzer to sound an alarm, and notify the operator to remove the casing tool and move to the next casing.

[0053] To sum up, the multifunctional casing tool in the present invention is provided with a telescopic component 100, and the two ends of the telescopic component 100 are respectively connected to the casing body clamping component 200 and the rotating component 300, the casing body clamping component 200 is used to stably connect the casing body 001, and the rotating component 300 is connected to the wire guard clamping component 400, the wire guard clamping component 400 stably clamps the wire guard 002, and the wire guard clamping component 400 is driven to rotate by the rotating component 300, so that the wire guard loading and unloading work can be easily completed; at the same time, an infrared ranging sensor 416 or a reflective plate 417 is provided on the wire guard clamping component 400, so that the casing tool equipped with the infrared ranging sensor 416 and the casing tool equipped with the reflective plate 417 form a set of multifunctional casing tools that can measure the casing length and judge whether the diameter is normal, which is simple and convenient to use.

[0054] This specification describes examples of embodiments of the present invention and is not intended to illustrate and describe all possible forms of the invention. It should be understood that the embodiments described in this specification may be implemented in a variety of alternative forms. The figures need not be drawn to scale; some features may be enlarged or reduced to show details of particular components. The specific structural and functional details disclosed should not be interpreted as limiting, but merely as a representative basis for teaching those skilled in the art to implement the invention in various forms. It should be understood by those skilled in the art that the multiple features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to form embodiments that are not explicitly illustrated or described. The illustrated combined features provide representative embodiments for typical applications. However, various combinations and variations of features consistent with the teachings of the present invention may be used for specific applications or implementations as needed.

[0055] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A multifunctional casing tool, characterized in that: The multifunctional casing tool is used for installing and removing wire guards and measuring casing diameter, and comprises: a telescopic assembly parallel to the horizontal extension direction of the casing; A sleeve body clamping assembly, the top of which is connected to one end of the telescopic assembly, and the sleeve body clamping assembly is sleeved on the sleeve body and fixes the sleeve body; The casing body clamping assembly includes: A connecting collar, the top of which is connected to the telescopic assembly, and a first through hole is provided on the annular body of the connecting collar; An electric telescopic rod, fixedly installed in the first through hole; a friction plate connected to the movable rod of the electric telescopic rod, wherein the friction plate is in an arc shape; A rotating assembly, the top of which is connected to the other end of the telescopic assembly, and the rotating assembly and the sleeve body clamping assembly are located on the same side of the telescopic assembly, so that the telescopic assembly, the sleeve body clamping assembly and the rotating assembly form a "door" type structure; A thread guard cap clamping assembly is provided at the bottom of the rotating assembly, and the thread guard cap clamping assembly clamps the edge protrusion of the thread guard cap; The wire guard clamp assembly includes: The clamping disc has a connecting shaft connected to the rotating assembly on the back and a clamp for clamping the thread protector on the front, and the front is opposite to the sleeve body clamping assembly; the clamping disc includes three clamping rods and a connecting shaft, and the three clamping rods form a circular disc surface. The connecting shaft is provided on the back of the clamping disc and connected to the rotating assembly; The card holder comprises: A first clamping piece, fixedly and vertically arranged on the edge of the clamping plate; A clip adjustment member is located on the connecting line between the first clip and the center of the clamping disk, and the clip adjustment member is an electric telescopic rod; a second clip connected to one end of the clip adjusting member, wherein the second clip is adapted to expand or contract the distance between the first clip and the second clip through the extension and contraction of the clip adjusting member; The wire protection cap clamping assembly also includes: an infrared distance measuring sensor, disposed on the front of the clamping disk and located on the line connecting the clamp and the center of the clamping disk; and The reflective plate has a radius greater than the distance from a point on a line connecting the clamp and the center of the clamping disk to the center of the clamping disk.

2. The multifunctional casing tool according to claim 1, characterized in that: The clamping surfaces of the first clamping piece and the second clamping piece are provided with serrated lines.

3. The multifunctional casing tool according to claim 1, characterized in that: The contact surface between the friction plate and the sleeve body is provided with serrated lines.

4. The multifunctional casing tool according to claim 1, characterized in that: The telescopic assembly includes: a support cylinder fixedly connected to the sleeve body clamping assembly; a telescopic unit, arranged in the supporting cylinder; The connecting tube is inserted into the supporting tube, and the connecting tube is connected to the movable rod of the telescopic unit so that the connecting tube can be stored in the supporting tube or extended out of the supporting tube.

5. The multifunctional casing tool according to claim 4, characterized in that: A handle is provided outside the supporting tube.

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