CN111520128A - Line passing device of backup arm for micro-resistivity scanning imaging logging instrument - Google Patents
Line passing device of backup arm for micro-resistivity scanning imaging logging instrument Download PDFInfo
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- CN111520128A CN111520128A CN202010497272.2A CN202010497272A CN111520128A CN 111520128 A CN111520128 A CN 111520128A CN 202010497272 A CN202010497272 A CN 202010497272A CN 111520128 A CN111520128 A CN 111520128A
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- wire
- wire passing
- arm
- polar plate
- scanning imaging
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The invention discloses a line passing device of a backup arm for a micro-resistivity scanning imaging logging instrument. The invention adopts the wire passing roller and the embedded wire passing mode, effectively reduces the friction of the well wall on the instrument pushing arm, protects the polar plate connecting wire from insulation reduction or circuit break caused by rubbing, and achieves the purposes of improving the success rate of logging operation and reducing the cost.
Description
Technical Field
The invention belongs to the technical field of matching devices of petroleum geological exploration instruments, and particularly relates to a backup arm wire passing device for a micro-resistivity scanning imaging logging instrument.
Background
Resistivity imaging logging was first developed in the middle of the 80's of the 20 th century, and schlumberger introduced formation resistivity scanning logging instruments first, which released a new chapter on the development of resistivity imaging logging technology. The micro-resistivity scanning imaging logging instrument is an advanced well wall imaging logging instrument, and utilizes button-shaped small electrodes regularly arranged on a polar plate to emit current to a well wall stratum, the current changes due to different contacted rock components, structures and contained fluids, and the current changes reflect the change of the resistivity of rocks at each part of the well wall, so that the well wall can be imaged.
The micro-resistivity scanning imaging logging instrument belongs to a high-end imaging logging instrument, and in order to ensure the imaging effect of a well wall, the instrument is provided with 8 mechanical pushing arms, and after the pushing arms are opened, a polar plate is tightly attached to the well wall. In the well logging process, the connecting part of the main pushing arm and the polar plate is easy to scratch and rub against the well wall, polar plate connecting wires are easy to damage, faults such as insulation reduction, circuit break and the like are caused, and the using efficiency of an instrument is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a backup arm wire passing device for a micro-resistivity scanning imaging logging instrument, aiming at overcoming the defects in the prior art, which can effectively reduce the damage caused by scraping of the well wall, protect the electric connection performance of a polar plate connecting wire and a polar plate, improve the reliability of the instrument, increase the success rate of logging operation, reduce the repair rate of the instrument and save the logging cost.
The invention adopts the following technical scheme:
the utility model provides a little resistivity scanning imaging logging instrument is with pushing away arm wire passing device, includes that the owner pushes away and leans on the support arm, and the one end that the owner pushed away the support arm is provided with line gyro wheel and polar plate connector, and the other end pushes away the motor and is connected, and the polar plate connector is connected with the polar plate, is provided with the metallic channel on the line gyro wheel, is provided with the centre bore on the polar plate connector, and the polar plate connecting wire is connected with the polar plate after metallic channel and centre bore in proper order, is provided with the stop wire round pin on the polar plate connector.
Specifically, the main pushing support arm, the wire passing roller and the polar plate connector are fixedly connected through a wire passing roller fixing bolt.
Furthermore, a limit pin is arranged between the wire passing roller fixing bolt and the polar plate connector.
Furthermore, the limiting pin is of a straight-groove light structure of the elastic cylindrical pin.
Furthermore, the line-passing roller fixing bolt is of a countersunk structure, one end of the countersunk head is provided with a character groove, and the other end of the countersunk head is provided with a limit pin mounting hole.
Further, the wire passing roller is made of stainless steel with an embedded copper core, and a wire passing roller fixing bolt mounting hole is formed in the center of the wire passing roller.
Specifically, the polar plate connector is connected with the polar plate in a threaded mode.
Specifically, the polar plate connector is provided with a wire passing groove.
Specifically, two wire blocking pin mounting holes are formed in the polar plate connecting head, and a thread is arranged in one mounting hole.
Specifically, the stop line pin is of a countersunk cylinder structure, the lower part of the stop line pin is provided with threads, the middle part of the stop line pin is a smooth cylinder, and the stop line pin is flush with the surface of the polar plate connector after being installed in place.
Compared with the prior art, the invention has at least the following beneficial effects:
according to the line passing device for the backup arm of the micro-resistivity scanning imaging logging instrument, the line passing roller and the embedded line passing mode are adopted, so that the friction of a well wall on the backup arm of the instrument is effectively reduced, the insulation reduction or the circuit break caused by rubbing of the connecting line of the protective polar plate is avoided, and the purposes of improving the success rate of logging operation and reducing the cost are achieved.
Furthermore, the main pushing support arm, the wire passing roller and the polar plate connector are fixedly connected through the wire passing roller fixing bolt under the condition of ensuring the connection strength, so that the purpose of quick disassembly is achieved, the maintenance time is shortened, and the maintenance efficiency is improved.
Furthermore, the limiting pin connects the wire passing roller fixing bolt with the pole plate connector into a whole, so that the wire passing roller fixing bolt is prevented from falling off in the well logging construction process, and the pole plate is prevented from falling off.
Furthermore, the limiting pin is of an elastic cylindrical pin straight groove light structure, the machining process is mature, the dismounting process is simple and convenient, the material cost is low, and the maintenance efficiency can be effectively guaranteed.
Furthermore, the wire roller fixing bolt is of a countersunk structure, the upper surface of the installed wire roller fixing bolt is slightly lower than the outer surface of the pushing arm, the scraping with the well wall cannot be increased in the construction process, and the additional damage to the pushing arm caused by the scraping with the well wall is reduced.
Further, embedded copper core material is softer, and it is little with stainless steel material line gyro wheel fixing bolt frictional force, can guarantee that the gyro wheel still guarantees the rolling characteristic under the harsh condition, and the stainless steel material of outside is harder, can effectively reduce wearing and tearing, improves purpose or benefit that the gyro wheel live time set up.
Furthermore, the polar plate connector is connected with the polar plate in a threaded mode, so that the installation reliability is effectively improved, and meanwhile, the friction force during disassembly and assembly is reduced.
Furthermore, the wire blocking pin mounting hole can be suitable for mounting a wire blocking pin, and the phenomenon that the polar plate connecting wire is cut and rubbed with a well wall and then is short-circuited and broken is avoided due to the fact that the polar plate connecting wire is prolapsed from the lower portion of the polar plate connector.
Furthermore, the lower portion thread is convenient to be reliably connected with one end of the gear pin mounting hole with a thread, the mounting mode is that the thread penetrates through one end without the thread and is screwed to one end with the thread, the length of the thread is the same as that of the thread of the mounting hole, and the middle portion smooth cylinder prevents the thread from cutting and cutting damage on the connecting line of the pole plate.
In conclusion, the invention adopts the wire passing roller and the embedded wire passing mode, thereby effectively reducing the friction of the well wall on the instrument pushing arm, protecting the polar plate connecting wire from being reduced in insulation or broken circuit caused by rubbing, and achieving the purposes of improving the success rate of logging operation and reducing the cost.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is an assembled view of the present invention;
FIG. 2 is a schematic view of a wire stop pin according to the present invention;
FIG. 3 is a schematic view of a wire passing roller according to the present invention;
FIG. 4 is a schematic diagram of a plate connector of the present invention, wherein (a) is a side view, (b) is a front view, and (c) is a top view;
FIG. 5 is a schematic view of a wire roller fixing plug according to the present invention;
FIG. 6 is a schematic view of the main thrust support arm of the present invention wherein (a) is a top view and (b) is a side view.
Wherein: 1. a wire blocking pin; 2. a polar plate connector; 3. the wire passing roller fixes the bolt; 4. a wire passing roller; 5. a spacing pin; 6. the main push is against the support arm.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "one side", "one end", "one side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Various structural schematics according to the disclosed embodiments of the invention are shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
The invention provides a line passing device of a backup arm for a micro-resistivity scanning imaging logging instrument, wherein the upper end of a main backup support arm is connected with a backup motor, the lower end of the main backup support arm, a wear-resistant line passing roller and the upper end of a polar plate connector are connected together by a line passing roller fixing bolt, and a limiting pin penetrates through the line passing roller fixing bolt and a limiting pin mounting hole on the polar plate connector, so that all parts form a whole. The polar plate connecting wire passes through the wire groove on the wear-resistant wire passing roller and the central hole of the polar plate connector to reach the polar plate, the polar plate is connected to the wire passing device through the lower end thread of the polar plate connector, and finally the wire blocking pin is installed to ensure that the polar plate connecting wire cannot fall off from the lower part. The wire passing device ensures that the polar plate is attached to the well wall in the well logging process, simultaneously reduces scraping and rubbing between the polar plate and the well wall to the greatest extent, greatly prolongs the polar plate connecting wire and the polar plate service life, reduces the maintenance rate, saves the cost and improves the success rate of well logging operation.
Referring to fig. 1, the backup arm wire passing device for the micro-resistivity scanning imaging logging instrument of the present invention includes a main backup support arm 6, a wire passing roller 4, a pole plate connector 2, a wire passing roller fixing plug pin 3, a limit pin 5 and a wire blocking pin 1.
The upper end of a main pushing support arm 6 is connected with a pushing motor, the lower end of the main pushing support arm 6, a wire passing roller 4 and the upper end of a polar plate connector 2 are connected together by a wire passing roller fixing bolt 3, and a limiting pin 5 penetrates through the wire passing roller fixing bolt 3 and a limiting pin mounting hole on the polar plate connector 2, so that all parts form a whole; and (3) enabling a polar plate connecting wire to pass through a wire guide groove on the wire passing roller 4 and a central hole of the polar plate connector 2 to reach the polar plate, connecting the polar plate to a wire passing device through a thread at the lower end of the polar plate connector 2, and finally installing a wire blocking pin 1 in a wire blocking pin installing hole.
Referring to fig. 6, the inner side of the main pushing support arm 6 is designed with a wire passing groove for mounting a pole plate connecting wire, and the lower end is provided with a wire passing roller fixing plug mounting hole.
Referring to fig. 3, the wire-passing roller 4 is made of stainless steel with an embedded copper core, and is externally designed with a wire-passing groove for mounting a polar plate connecting wire, and the center of the wire-passing roller is provided with a mounting hole for fixing the plug pin 3.
Referring to fig. 5, the wire-passing roller fixing pin 3 is a countersunk head, one end of the countersunk head has a character-cut groove, and the other end has a limit pin mounting hole, so that the wire-passing roller fixing pin can be rotated by a character screwdriver during installation to align with the limit pin mounting hole on the wire-passing roller fixing pin 3 and the pole plate connector 2.
Referring to fig. 4, the pole plate connector 2 is designed with a mounting hole for the wire-passing roller fixing pin 3 and is designed with a countersunk head to ensure that the wire-passing roller fixing pin 3 is not higher than the surface of the pole plate connector after being mounted.
The polar plate connector 2 is provided with a mounting hole of a limiting pin 5, and the wire passing roller fixing bolt 3 and the polar plate connector 2 are connected into a whole by the limiting pin 5.
The polar plate connector 2 is designed with polar plate mounting threads for reliably connecting the polar plate.
The polar plate connector 2 is designed with a wire passing groove, so that the polar plate connecting wire can be overhauled without disconnecting the polar plate connecting wire.
The limiting pin 5 adopts a light design mode of an elastic cylindrical pin straight groove, and the elastic cylindrical pin is simple in machining and manufacturing process, simple and convenient to assemble and disassemble and low in cost.
Referring to fig. 2, the wire stopper pin 1 is a countersunk cylinder with threads at the lower part thereof, which are matched with the threads in the wire stopper pin mounting hole of the pole plate connector 2, and a smooth cylinder at the middle part thereof, which is flush with the surface of the pole plate connector 2 after being mounted in place.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The assembling steps of the backup arm wire passing device for the micro-resistivity scanning imaging logging instrument are as follows:
s1, splicing the lower end of the main push support arm, the wear-resistant wire passing roller and the upper end of the polar plate connecting head together by a process wire roller fixing bolt passing through the wire passing roller fixing bolt mounting hole;
s2, a limiting pin penetrates through the wire passing roller fixing bolt and a limiting pin mounting hole on the polar plate connector, so that the 4 parts form a whole;
s3, the pole plate connecting wire passes through the wire groove on the wear-resistant wire passing roller and the center hole of the pole plate connector to reach the pole plate, the pole plate is connected to the wire passing device through the lower end thread of the pole plate connector, and the pole plate connecting wire is welded on the pole plate circuit;
and S4, installing the wire blocking pin in the wire blocking pin installation hole.
The disassembly steps are as follows:
s5, taking the wire blocking pin out of the wire blocking pin mounting hole;
s6, removing the pole plate connecting wire from the pole plate circuit;
s7, unscrewing the pole plate from the pole plate connector;
s8, punching the limit pin from the limit pin mounting hole by using a metal punch to remove the limit relation;
s9, detaching the fixing bolt of the wire passing roller from the mounting hole of the fixing bolt of the wire passing roller, and removing the connection relation among the main pushing support arm, the wear-resistant wire passing roller and the polar plate connector.
In conclusion, the push arm wire passing device for the micro-resistivity scanning imaging logging instrument reduces the condition that sharp corners exist at the joints of the push arms and the polar plates, reduces damage to the polar plates caused by scraping of the well wall, prevents polar plate connecting wires from sagging, effectively prolongs the service time of the polar plates, reduces maintenance times and saves cost.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a little resistivity scanning imaging logging instrument is with pushing away arm wire passing device, a serial communication port, including main pushing away support arm (6), the one end that main pushing away supported arm (6) is provided with line gyro wheel (4) and polar plate connector (2), the other end with push away to push away the motor and be connected, polar plate connector (2) are connected with the polar plate, be provided with the metallic channel on crossing line gyro wheel (4), be provided with the centre bore on polar plate connector (2), the polar plate connecting wire is connected with the polar plate after metallic channel and centre bore in proper order, be provided with on polar plate connector (2) and keep off line round pin (1).
2. The push arm wire passing device for the micro-resistivity scanning imaging logging instrument according to claim 1, wherein the main push support arm (6), the wire passing roller (4) and the pole plate connector (2) are fixedly connected through a wire passing roller fixing bolt (3).
3. The line passing device of the backup arm for the microresistivity scanning imaging logging instrument of claim 2, wherein a limit pin (5) is arranged between the line passing roller fixing bolt (3) and the pole plate connector (2).
4. The wire passing device of the pushing arm for the microresistivity scanning imaging logging instrument according to claim 3, wherein the limiting pin (5) is of a straight-groove light structure with an elastic cylindrical pin.
5. The line passing device of the backup arm for the microresistivity scanning imaging logging instrument of claim 2, wherein the line passing roller fixing bolt (3) is a countersunk head structure, one end of the countersunk head is provided with a character groove, and the other end of the countersunk head is provided with a limit pin mounting hole.
6. The wire passing device of the backup arm for the microresistivity scanning imaging logging instrument of claim 2, wherein the wire passing roller (4) is made of stainless steel with an embedded copper core, and a mounting hole for a wire passing roller fixing bolt (3) is formed in the center.
7. The wire passing device of the pushing arm for the microresistivity scanning imaging logging instrument of claim 1, wherein the pole plate connector (2) is connected with the pole plate in a threaded manner.
8. The wire passing device of the backup arm for the microresistivity scanning imaging logging instrument of claim 1, wherein the pole plate connector (2) is provided with a wire passing groove.
9. The wire passing device of the pushing arm for the microresistivity scanning imaging logging instrument of claim 1, wherein two wire blocking pin mounting holes are formed in the pole plate connector (2), and a thread is formed in one mounting hole.
10. The line passing device of the backup arm for the microresistivity scanning imaging logging instrument according to claim 1, wherein the line blocking pin (1) is a countersunk cylinder structure, the lower part of the line blocking pin is provided with threads, the middle part of the line blocking pin is a smooth cylinder, and the line blocking pin is flush with the surface of the pole plate connector (2) after being installed in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497272.2A CN111520128B (en) | 2020-06-02 | 2020-06-02 | Line passing device of backup arm for micro-resistivity scanning imaging logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497272.2A CN111520128B (en) | 2020-06-02 | 2020-06-02 | Line passing device of backup arm for micro-resistivity scanning imaging logging instrument |
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| Publication Number | Publication Date |
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| CN111520128A true CN111520128A (en) | 2020-08-11 |
| CN111520128B CN111520128B (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010497272.2A Active CN111520128B (en) | 2020-06-02 | 2020-06-02 | Line passing device of backup arm for micro-resistivity scanning imaging logging instrument |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020043404A1 (en) * | 1997-06-06 | 2002-04-18 | Robert Trueman | Erectable arm assembly for use in boreholes |
| CN101012748A (en) * | 2007-02-02 | 2007-08-08 | 中国石化集团胜利石油管理局测井公司 | Wellface scanning imagery logging device with microresistivity |
| CN201225145Y (en) * | 2008-04-15 | 2009-04-22 | 中国海洋石油总公司 | Rolling wheel righting device of righting over core type well logging instrument |
| US20130068479A1 (en) * | 2011-09-19 | 2013-03-21 | Saudi Arabian Oil Company | Well Tractor With Active Traction Control |
| CN203050684U (en) * | 2013-01-07 | 2013-07-10 | 中国海洋石油总公司 | Clamp piston and hole diameter logger |
| CN209483331U (en) * | 2018-11-23 | 2019-10-11 | 中国石油天然气集团有限公司 | A kind of antiwear Electrical imaging instrument backup arm |
-
2020
- 2020-06-02 CN CN202010497272.2A patent/CN111520128B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020043404A1 (en) * | 1997-06-06 | 2002-04-18 | Robert Trueman | Erectable arm assembly for use in boreholes |
| CN101012748A (en) * | 2007-02-02 | 2007-08-08 | 中国石化集团胜利石油管理局测井公司 | Wellface scanning imagery logging device with microresistivity |
| CN201225145Y (en) * | 2008-04-15 | 2009-04-22 | 中国海洋石油总公司 | Rolling wheel righting device of righting over core type well logging instrument |
| US20130068479A1 (en) * | 2011-09-19 | 2013-03-21 | Saudi Arabian Oil Company | Well Tractor With Active Traction Control |
| CN203050684U (en) * | 2013-01-07 | 2013-07-10 | 中国海洋石油总公司 | Clamp piston and hole diameter logger |
| CN209483331U (en) * | 2018-11-23 | 2019-10-11 | 中国石油天然气集团有限公司 | A kind of antiwear Electrical imaging instrument backup arm |
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| CN111520128B (en) | 2022-05-31 |
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