Hanging logging instrument

Abstract

The utility model relates to a hanging logging instrument which comprises a logging instrument body and a rib plate set, the rib plate set is arranged on the outer layer of the top of the logging instrument body and connected with a rotating pin, the diameter of the logging instrument body is changed by rotating the rib plate set within a certain range, and a first sliding groove and a second sliding groove are formed in the logging instrument body; the rib plate set comprises a rib plate main plate and a rib plate auxiliary plate, the rib plate main plate is connected to the logging instrument body through a rotating pin, a third sliding groove identical to the first sliding groove in structure is formed in the outer side of the rib plate main plate, and a sliding part matched with the third sliding groove and the first sliding groove in structure is arranged on the inner side of the rib plate auxiliary plate in a protruding and extending mode. The rib plate auxiliary plates are slidably connected with the third sliding grooves of the rib plate main plates through the sliding parts, when the rib plate main plates are unfolded, the rib plate auxiliary plates can slide into the first sliding grooves and the second sliding grooves from the rib plate main plates, the diameter of the unfolded rib plate main plates is smaller than or equal to the diameter of the logging instrument body, and the whole logging instrument can be taken out of a drilling tool.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of well logging technology, and particularly relates to a hanging well logging instrument. BACKGROUND

[0002] In the process of geological exploration of oil, natural gas and the like, well logging operation is one of important means to obtain underground geological information. As a core device of well logging operation, the performance of a well logging instrument directly affects the accuracy of well logging data and operation efficiency. A conventional well logging instrument usually adopts a fixed diameter design, which has limitations in actual application. In recent years, a variable-diameter well logging instrument has appeared, which can adapt to wellbores of different sizes by adjusting its own diameter, so that the well logging instrument can change its own diameter to be hung in the wellbore. However, when the device for changing the diameter of the well logging instrument is damaged, the well logging instrument cannot be taken out from the drilling tool. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a hanging well logging instrument.

[0004] According to an aspect of the present application, a hanging well logging instrument is provided, which comprises a well logging instrument main body and a rib plate group.

[0005] The rib plate group is arranged on the top outer layer of the well logging instrument main body and connected through a rotating pin, and the rib plate group is rotated within a certain range to change the diameter of the well logging instrument main body.

[0006] The first sliding groove and the second sliding groove are arranged above and below each other on the well logging instrument main body, the rib plate main plate is connected to the well logging instrument main body through a rotating pin, and a third sliding groove with the same dovetail groove structure as the first sliding groove is arranged on the outer side of the rib plate main plate, the inner side of the rib plate auxiliary plate protrudes and extends a sliding part matched with the third sliding groove and the first sliding groove structure, and the rib plate auxiliary plate is slidably connected to the third sliding groove of the rib plate main plate through the sliding part. When the rib plate main plate is unfolded, the rib plate auxiliary plate can be slid into the first sliding groove and the second sliding groove from the rib plate main plate.

[0007] In a possible implementation, the unfolded rib plate main plate is located in the well logging instrument main body.

[0008] The diameters of the plurality of unfolded rib plate main plates are less than or equal to the diameter of the well logging instrument main body.

[0009] In a possible implementation, the hanging well logging instrument further comprises a spring.

[0010] The rib plate main plate is rotatably connected to the top end in the logging instrument main body, can rotate towards the outside of the logging instrument main body, and the top end in the logging instrument main body is provided with a spring mounting hole towards the rib plate main plate, the spring mounting hole is located outside the rotation position of the main plate, and can resist the rotation of the rib plate main plate towards the inside of the logging instrument main body.

[0011] In a possible implementation, the fixed column is further included.

[0012] The outer side of the rib plate main plate is further provided with a fixed slot, the fixed slot is perpendicular to the sliding direction of the third sliding slot in the opening direction, and the rib plate auxiliary plate is provided with a through fixed hole in the length direction of the perpendicular sliding part, and the fixed hole corresponds to the fixed slot.

[0013] The fixed column passes through the fixed hole to the fixed slot, and fixes the rib plate main plate and the rib plate auxiliary plate.

[0014] In a possible implementation, the shear force of the fixed column is less than the thrust force when the rib plate group is unfolded.

[0015] In a possible implementation, the second sliding slot and the third sliding slot are inclined at an angle relative to the length direction of the logging instrument main body, and the angle of the second sliding slot and the third sliding slot is equal to the angle of the outer side plane of the rib plate main plate when unfolded.

[0016] In a possible implementation, the rib plate auxiliary plate is in a pointed structure, and the upper side is connected to the first sliding slot.

[0017] The inner side of the second sliding slot is in communication with the outer side of the first sliding slot, and the outer side of the second sliding slot is in an exposed state.

[0018] In a possible implementation, the outer side of the second sliding slot is inclined at a larger angle than the inner side.

[0019] In a possible implementation, the inner side of the rib plate main plate is in a streamline structure.

[0020] In a possible implementation, the unfolded rib plate group has an inclination angle relative to the logging instrument main body and extends towards the direction away from the end of the logging instrument main body.

[0021] The hanging logging instrument of the embodiment of the present application has the beneficial effects that the logging instrument can be hung on the device in the drilling tool through the unfolding of the rib plate group, and then be recovered from the drilling tool by rotating and adhering to the logging instrument main body through the rib plate group. Specifically, when the device for pushing the rib plate group in the logging instrument main body is damaged after the rib plate group is unfolded, the rib plate main plate and the rib plate auxiliary plate are always in the unfolded state, and when the logging instrument is forcibly taken out, the drilling tool can resist the rib plate auxiliary plate and cut the fixing column, at this time, the rib plate auxiliary plate can slide relative to the rib plate main plate from the third sliding groove outside the rib plate main plate to the first sliding groove and the second sliding groove, so that the rib plate auxiliary plate returns to the inside of the logging instrument main body, at this time, the rib plate auxiliary plate is completely slid into the second sliding groove, and the diameter of the plurality of rib plate main plates after being unfolded is less than or equal to the diameter of the logging instrument main body, so that the logging instrument can be taken out from the drilling tool as a whole.

[0022] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and serve to explain the principles of the present application.

[0024] Figure 1 A partial cross-sectional schematic view of the hanging logging instrument of the embodiment of the present application is shown;

[0025] Figure 2 Another partial cross-sectional schematic view of the hanging logging instrument of the embodiment of the present application is shown;

[0026] Figure 3 A fixing column installation position cross-sectional schematic view of the hanging logging instrument of the embodiment of the present application is shown;

[0027] Figure 4 A main body cross-sectional schematic view of the hanging logging instrument of the embodiment of the present application is shown. DETAILED DESCRIPTION

[0028] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent functionally the same or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0029] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] The word "exemplary" herein means "serving as an example, an implementation, or illustration". Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0032] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that the present application can also be implemented without certain specific details. In some examples, methods, means, elements and circuits familiar to those skilled in the art are not described in detail, in order to highlight the main idea of the present application.

[0033] As shown in Figure 1 The hanging logging instrument of the present application comprises a logging instrument main body 10 and a rib plate group, the rib plate group is arranged on the top outer layer of the logging instrument main body 10 and connected by a rotating pin, and the rib plate group is rotated within a certain range to change the diameter of the logging instrument main body 10. The logging instrument main body 10 is provided with a first sliding groove 110 and a second sliding groove 120, the first sliding groove 110 and the second sliding groove 120 are arranged above and below, the rib plate group comprises a rib plate main plate 21 and a rib plate auxiliary plate 22, the rib plate main plate 21 is connected to the logging instrument main body 10 by a rotating pin, and a third sliding groove 210 with the same dovetail groove structure as the first sliding groove 110 is arranged on the outer side of the rib plate main plate 21, the inner side of the rib plate auxiliary plate 22 protrudes and extends a sliding part matched with the third sliding groove 210 and the first sliding groove 110, and the rib plate auxiliary plate 22 is slidingly connected to the third sliding groove 210 of the rib plate main plate 21 through the sliding part. When the rib plate main plate 21 is unfolded, the rib plate auxiliary plate 22 can slide from the rib plate main plate 21 into the first sliding groove 110 and the second sliding groove 120.

[0034] In this embodiment, the logging instrument can be hung on the device in the drilling tool through the unfolding of the rib plate group, and then be recovered from the drilling tool by rotating and adhering to the logging instrument main body 10. Specifically, when the device for pushing the rib plate group in the logging instrument main body 10 is damaged after the rib plate group is unfolded, the rib plate main plate 21 and the rib plate auxiliary plate 22 are always in the unfolded state. When the logging instrument is forcibly taken out, the drilling tool can resist the rib plate auxiliary plate 22 and cut the fixed column 30. At this time, the rib plate auxiliary plate 22 can slide relative to the rib plate main plate 21 from the third sliding groove 210 outside the rib plate main plate 21 to the first sliding groove 110 and the second sliding groove 120, so that the rib plate auxiliary plate 22 returns to the inside of the logging instrument main body 10. At this time, the rib plate auxiliary plate 22 is completely slid into the second sliding groove 120, and the diameter of the plurality of unfolded rib plate main plates 21 is less than or equal to the diameter of the logging instrument main body 10, so that the logging instrument can be taken out from the drilling tool as a whole.

[0035] In a specific embodiment, the rib plate main plate 21 after unfolding is located in the logging instrument main body 10, and the diameter of the plurality of unfolded rib plate main plates 21 is less than or equal to the diameter of the logging instrument main body 10. In this way, when the rib plate main plate 21 is always in the unfolded state and the rib plate auxiliary plate 22 slides to the second sliding groove 120, the logging instrument can be safely and intact taken out from the drilling tool due to the diameter of the plurality of unfolded rib plate main plates 21 being less than or equal to the diameter of the logging instrument main body 10.

[0036] In a specific embodiment, it further includes a spring, the rib plate main plate 21 is rotatably connected at the top end in the logging instrument main body 10, can rotate towards the outside of the logging instrument main body 10, and the top end in the logging instrument main body 10 is provided with a spring mounting hole towards the rib plate main plate 21, the spring mounting hole is located outside the main plate rotation position, and can resist the rib plate main plate 21 rotating towards the inside of the logging instrument main body 10. The rib plate group is rotatably connected at the top end in the logging instrument main body 10, can rotate towards the outside of the logging instrument main body 10, and the top end in the logging instrument main body 10 is provided with a spring mounting hole towards the rib plate group, the spring mounting hole is located outside the rib plate group rotation position, and can resist the rib plate main plate 21 rotating towards the inside of the logging instrument main body 10. Wherein, the rib plate main plate 21 is fixed by the top end rotatable connection, and the rib plate group can rotate towards the outside of the logging instrument main body 10, can be self-adapted according to the size and shape of the wellbore, and ensure that the logging instrument can be stably hung in the well.

[0037] The push rod 4 in the logging instrument main body 10 can push the inner side of the rib plate group to expand the rib plate group towards the outside of the sleeve body, and when the push rod in the logging instrument main body 10 is away from the rib plate group, the rib plate group has no power to recover, so the spring mounting hole is opened at the top end of the sleeve body, and the embedded spring is always in a compressed state, which can provide a reaction force to push the rib plate group into the logging instrument main body 10.

[0038] In a specific embodiment, it also includes a fixed column 30, the outer side of the rib plate main plate 21 is also provided with a fixed groove, the opening direction of the fixed groove is perpendicular to the sliding direction of the third sliding groove 210, and the rib plate auxiliary plate 22 is provided with a through fixed hole along the length direction of the vertical sliding part, the fixed hole corresponds to the fixed groove, the fixed column 30 passes through the fixed hole to the fixed groove, and the rib plate main plate 21 and the rib plate auxiliary plate 22 are fixed. When the logging instrument passes through the drilling tool, if the rib plate group is always in an expanded state, the drilling tool will resist the rib plate auxiliary plate 22 and cut the fixed column 30 when the logging instrument is forcibly pulled out, at this time, the rib plate auxiliary plate 22 can slide relative to the rib plate main plate 21 from the third sliding groove 210 outside the rib plate main plate 21 to the first sliding groove 110 and the second sliding groove 120, so that the rib plate auxiliary plate 22 returns to the inside of the logging instrument main body 10, and the whole logging instrument is taken out. Specifically, the outer side of the rib plate main plate 21 is provided with a third sliding groove 210, and the inner side of the rib plate auxiliary plate 22 has a sliding part matched with the third sliding groove 210, so that the rib plate auxiliary plate 22 can slide in the third sliding groove 210 relative to the rib plate main plate 21. When the rib plate main plate 21 is expanded, the rib plate auxiliary plate 22 can slide from the rib plate main plate 21 to the first sliding groove 110 and the second sliding groove 120, so that the rib plate auxiliary plate 221 can be recovered into the logging instrument main body 10 when the rib plate main plate 21 is expanded, thereby reducing the diameter of the whole rib plate. The outer side of the rib plate main plate 21 is also provided with a fixed groove, and the rib plate auxiliary plate 22 has a fixed hole corresponding to the fixed groove, and the rib plate main plate 21 and the rib plate auxiliary plate 22 are fixed together by the columnar fixed column 30, so as to avoid the sliding of the rib plate auxiliary plate 22 relative to the rib plate main plate 21. When the logging instrument passes through the drilling tool, if the push rod 4 or the transmission screw is damaged and the rib plate is stuck at the outlet position of the drilling tool, the problem can be solved by forcibly pulling out the logging instrument. At this time, the drilling tool will resist the rib plate auxiliary plate 22 and cut the fixed column 30, and since the fixed column 30 is cut, the rib plate auxiliary plate 22 can slide relative to the rib plate main plate 21 and be recovered into the logging instrument main body 10, so as to ensure that the logging instrument can be smoothly taken out in an emergency.

[0039] In a specific embodiment, the shear force of the fixed column 30 is smaller than the pushing force when the rib plate group is expanded.

[0040] In an embodiment, the second sliding groove 120 and the third sliding groove 210 are inclined at an angle relative to the length direction of the logging instrument main body 10, and the angle of the second sliding groove 120 and the third sliding groove 210 is equal to the angle of the outer side plane of the rib plate main plate 21 when unfolded.

[0041] In an embodiment, the rib plate auxiliary plate 22 is in a pointed structure, the upper side is connected with the first sliding groove 110, the inner side of the second sliding groove 120 is in communication with the outer side of the first sliding groove 110, and the outer side of the second sliding groove 120 is in an exposed state. The variable-diameter hanging logging instrument can be hung. Specifically, the third sliding groove 210 with the same dovetail groove structure as the first sliding groove 110 is formed on the outer side of the rib plate main plate 21, and the inner side of the rib plate auxiliary plate 22 protrudes and extends a sliding part matched with the structure of the third sliding groove 210 and the first sliding groove 110, and the cross section of the sliding part is in an isosceles trapezoidal shape. In addition, when the rib plate main plate 21 is unfolded, the third sliding groove 210 corresponds to the first sliding groove 110 and is located on the same straight line. The sliding part on the inner side of the rib plate auxiliary plate 22 is embedded in the third sliding groove, so that the rib plate auxiliary plate 22 can slide in the third sliding groove 210 relative to the rib plate main plate 21. When the rib plate main plate 21 is unfolded, the rib plate auxiliary plate 22 can slide from the rib plate main plate 21 into the first sliding groove 110 and the second sliding groove 120, so that when the rib plate main plate 21 is in an unfolded state, the rib plate auxiliary plate 22 slides into the sleeve hanging main body, thereby reducing the diameter of the rib plate as a whole. In addition, the rib plate auxiliary plate 22 is in a pointed structure, and the variable-diameter hanging logging instrument can be hung.

[0042] In an embodiment, the outer side of the second sliding groove 120 is inclined at an angle greater than the inner side.

[0043] In an embodiment, the inner side of the rib plate main plate 21 is in a streamline structure.

[0044] In an embodiment, the unfolded rib plate group is inclined at an angle relative to the logging instrument main body 10 and extends in a direction away from the end of the logging instrument main body 10.

[0045] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A wireline logging tool, characterized by The utility model relates to a well logging instrument, including: Well logging instrument main part and rib plate group; The rib plate group sets up in the top outer layer hinge joint of well logging instrument main part, rotates the rib plate group in certain range rotates changes the diameter of well logging instrument main part; Wherein, the first sliding groove and the second sliding groove are set up on the well logging instrument main part, the first sliding groove and the second sliding groove are set up upside down, the rib plate group includes rib plate main plate and rib plate auxiliary board, the rib plate main plate is connected on the well logging instrument main part through hinge, and the third sliding groove of the same dovetail groove structure of the first sliding groove is set up on the outside of the rib plate main plate, the inside of the rib plate auxiliary board protrudes and extends the sliding part matched with the third sliding groove and the first sliding groove structure, the rib plate auxiliary board is slidably connected with the third sliding groove of the rib plate main plate through the sliding part, when the rib plate main plate is unfolded, the rib plate auxiliary board can slide from the rib plate main plate to the first sliding groove and the second sliding groove.

2. The hanging sonde of claim 1, wherein, The unfolded rib plate main plate is located in the well logging instrument main part; The diameter of the unfolded rib plate main plate is less than or equal to the diameter of the well logging instrument main part.

3. The hanging sonde of claim 2, wherein, Further including: Spring; The rib plate main plate is rotatably connected in the top end of the well logging instrument main part, can rotate towards the outside of the well logging instrument main part, and the spring mounting hole is set up in the top end of the well logging instrument main part towards the direction of the rib plate main plate, the spring mounting hole is located on the outside of the main plate rotating position, can resist the rib plate main plate rotating towards the inside of the well logging instrument main part.

4. The hanging sonde according to any one of claims 1-3, characterized in that, Further including: Fixed column; The outside of the rib plate main plate is also provided with a fixed groove, the setting direction of the fixed groove is perpendicular to the sliding direction of the third sliding groove, and a through fixed hole is formed on the rib plate auxiliary board along the length direction perpendicular to the sliding part, the fixed hole corresponds to the fixed groove; The fixed column passes through the fixed hole to the fixed groove, and fixes the rib plate main plate and the rib plate auxiliary board.

5. The hanging sonde of claim 4 wherein, The shear force of the fixed column is less than the thrust force when the rib plate group is unfolded.

6. The hanging sonde of claim 4 wherein, The setting direction of the second sliding groove and the third sliding groove has an inclination angle relative to the length direction of the well logging instrument main part, and the inclination angle of the second sliding groove and the third sliding groove is equal to the angle of the outside plane when the rib plate main plate is unfolded.

7. The hanging sonde of claim 6 wherein, The rib plate auxiliary board is in a pointed structure, and the upper side is connected with the first sliding groove. The inside of the second sliding groove is in communication with the outside of the first sliding groove, and the outside of the second sliding groove is in a bare state.

8. The hanging sonde of claim 1 wherein, The outside inclination angle of the second sliding groove is greater than the inside inclination angle.

9. The hanging sonde of claim 1 wherein, The inside of the rib plate main plate is in a streamline structure.

10. The hanging sonde of claim 1 wherein, The unfolded rib plate group has an inclination angle relative to the well logging instrument main part, and extends towards the direction away from the end of the well logging instrument main part.

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