CN109742696B - Cable power breaking device - Google Patents
Cable power breaking device Download PDFInfo
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- CN109742696B CN109742696B CN201910085660.7A CN201910085660A CN109742696B CN 109742696 B CN109742696 B CN 109742696B CN 201910085660 A CN201910085660 A CN 201910085660A CN 109742696 B CN109742696 B CN 109742696B
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- cable
- annular guide
- spherical annular
- cable clamp
- clamp plate
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Abstract
The invention discloses a cable force breaking device which comprises a cover plate, a rotary cable clamp plate and a spherical annular guide rail assembly, wherein the rotary cable clamp plate is arranged on the cover plate; a through hole for a cable to pass through is formed in the middle of the rotary cable clamp plate, and spherical annular guide grooves are formed in two ends of the rotary cable clamp plate; the spherical annular guide rail assembly comprises two spherical annular guide rails which are arranged at two ends of the rotary cable clamp plate and are connected with the spherical annular guide groove in a matched manner; the cover plate is arranged outside the rotary cable clamp plate and the spherical annular guide rail assembly. The invention has simple structure and convenient assembly, effectively solves the problem of torsion release of the logging cable, ensures the safe use of the logging cable, applies certain tension to the cable when an underground accident occurs, pulls out the spiral guide groove of the clamping plate, provides technical support for rapidly processing the underground accident, and effectively meets the cable strength breaking requirement in the logging construction of the horizontal well.
Description
Technical Field
The invention belongs to the technical field of well logging in oil and gas exploration, relates to horizontal well logging construction in the technical field of oil exploration, and particularly relates to a cable breaking device for cable safety protection in a horizontal well logging tool.
Background
The logging cable is an important component of logging construction, the inside of the logging cable is formed by 7 conducting wires in a winding mode, an insulating layer and two layers of phi 1.1mm and phi 1.3mm winding steel wires are attached to the conducting wires, and therefore the logging cable has certain torsion, and the longer the logging cable is, the larger the torsion per se is.
When the cable is conveyed to log a well, a downhole instrument is connected with a cable head, the instrument is lowered along with the cable, and the instrument is rotated to break strength under the torsion of the cable; and when the horizontal well logging construction, the logging cable is fixed in the clamping plate on the bypass short section, and then a cover plate is buckled on the clamping plate and fixed together with the bypass short section main body by screws, so that the logging cable cannot remove self torque at the bypass short section, and the occurrence of cable bending and twisting damage can be caused.
Disclosure of Invention
The invention aims to provide a cable breaking device on a bypass short section, and solves the problem of the existing well logging cable breaking distortion.
A cable force breaking device comprises a cover plate, a rotary cable clamp plate and a spherical annular guide rail assembly; a through hole for a cable to pass through is formed in the middle of the rotary cable clamp plate, and spherical annular guide grooves are formed in two ends of the rotary cable clamp plate; the spherical annular guide rail assembly comprises two spherical annular guide rails which are arranged at two ends of the rotary cable clamp plate and are connected with the spherical annular guide groove in a matched manner; the cover plate is arranged outside the rotary cable clamp plate and the spherical annular guide rail assembly.
The inside antiskid screw thread that is equipped with of rotation type cable splint main part.
The rotation type cable splint include two semi-cylindrical structures, form the through-hole that is used for the cable to pass between the semi-cylindrical structure, two semi-cylindrical structures can dismantle the connection.
The two semi-cylindrical structures are provided with a plurality of threaded holes at intervals, and the two semi-cylindrical structures are fixedly connected with the threaded holes through screws.
The spherical annular guide rail is internally provided with a spherical sliding surface matched with the spherical groove on the rotary cable clamp plate.
The spherical annular guide rail comprises two semi-annular structures, and the two semi-annular structures are oppositely arranged to form a complete spherical annular guide rail.
The inside draw-in groove that is used for placing globular ring rail that is provided with in both ends of apron, globular ring rail sets up in the draw-in groove of apron, and globular ring rail can be at the draw-in groove internal rotation.
And cover plate screws used for being fixed with the bypass short sections are arranged at the two ends of the cover plate.
And a groove for placing the rotary cable clamp plate and the spherical annular guide rail assembly is formed in the bypass short section.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a cable force breaking device, which comprises a cover plate, a rotary cable clamp plate and a spherical annular guide rail assembly, wherein the rotary cable clamp plate is arranged on the cover plate; the rotary cable clamp plate is provided with a plurality of threaded holes at intervals, spherical annular guide grooves are formed in two ends of a main body of the rotary cable clamp plate, and anti-skidding threads are arranged in the main body; the main body of the spherical annular guide rail is provided with a spherical sliding surface which is matched with a spherical groove on the cable clamp plate to rotate freely. The horizontal well logging device is simple in structure, convenient to assemble and free to rotate, and effectively meets the requirement of breaking the cable in horizontal well logging construction. The rotary cable clamp plate in the cable breaking device is assembled into an integrated structure, and a spiral guide groove in the cable breaking device tightly holds the logging cable under the action of a screw; the rotary cable clamp plate is placed in the spherical annular guide rail to rotate freely.
Furthermore, all components of the invention adopt split structures, the assembly is convenient, the torsion release of the logging cable is effectively solved, the safe use of the logging cable is ensured, when an underground accident occurs, the cable applies certain tension to pull out the spiral guide groove of the clamping plate, and the technical guarantee is provided for rapidly processing the underground accident.
Drawings
FIG. 1 is a structural cross-sectional view of the present invention;
FIG. 2 is a schematic view of a rotary cable cleat installation;
the reference numbers in the figures represent: 1 bypass nipple joint, 2 cables, 3 apron screws, 4 globular annular guide rails, 5 apron, 6 rotation type cable splint, 7 screws.
Detailed Description
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the embodiments of the present invention with reference to the accompanying drawings and examples is given by way of illustration and not limitation.
The invention belongs to the technical field of logging in oil and gas exploration, relates to horizontal well logging construction in the technical field of oil exploration, and particularly relates to cable safety protection in a horizontal well logging tool.
As shown in fig. 1 and 2, the cable breaking device of the present invention comprises a cover plate 5, a rotary cable clamp 6 and a spherical annular guide rail 4; a through hole for the cable 2 to pass through is arranged in the middle of the rotary cable clamp plate 6, and spherical annular guide grooves are arranged at two ends of the rotary cable clamp plate 6; the spherical annular guide rail assembly comprises two spherical annular guide rails 4, the two spherical annular guide rails 4 are arranged at two ends of the rotary cable clamp plate 6, and the spherical annular guide rails 4 are matched and connected with the spherical annular guide grooves; the cover plate 5 is arranged outside the rotary cable clamp 6 and the spherical annular guide rail assembly. The inside of the main body of the rotary cable clamp plate 6 is provided with anti-skid threads.
The rotary cable clamp 6 comprises two semi-cylindrical structures which are detachably connected. A plurality of threaded holes are distributed on the rotary cable clamp plate 6 at intervals, and the two half structures are fixed by arranging screws 7 in the threaded holes; the two semi-cylindrical structures are fixedly connected with the threaded holes through screws 7.
The spherical annular guide rail 4 is internally provided with a spherical sliding surface matched with a spherical groove on the rotary cable clamp plate 6. The main body of the spherical annular guide rail 4 is provided with a spherical sliding surface for matching with a spherical groove on the cable clamp plate 6 to freely rotate. The spherical annular guide rail 4 comprises two semi-annular structures which are oppositely arranged to form a complete spherical annular guide rail 4.
The inside draw-in groove that is used for placing globular ring rail 4 that is provided with in both ends of apron 5, globular ring rail 4 sets up in the draw-in groove of apron 5, and globular ring rail 4 can be at the draw-in groove internal rotation. And cover plate screws 3 used for being fixed with the bypass short section 1 are arranged at two ends of the cover plate 5. The bypass short section 1 is provided with a groove for placing the rotary cable clamp 6 and the spherical annular guide rail assembly.
The rotary cable clamp plate 6 is buckled on the cable 2 and is fastened into a whole by a screw 7. Spherical annular guide rails 4 are arranged at two ends of the rotary cable clamp plate 6, and the rotary cable clamp plate 6 and the spherical annular guide rails 4 are placed in grooves of the main body of the bypass nipple 1.
The fixed cable 2 and the rotary cable clamp 6 are put into the spherical annular guide rail 4 of the bypass short section 1 main body. The cover plate 5 is internally provided with a clamping groove for placing the spherical annular guide rail 4. The cover plate 5 is wrapped outside the rotary cable clamp plate 6 and the spherical annular guide rail 4, and the spherical annular guide rail 4 is arranged in a clamping groove of the cover plate 5 and is fixed with the bypass short section 1 through a cover plate screw 3.
As shown in fig. 1, the rotating mode and the fixing method of the cable force breaking device of the present invention are as follows:
1. half of 2 spherical annular guide rails 4 are placed in a groove of a main body of the bypass nipple 1.
2. Half of the other 2 spherical ring-shaped guide rails 4 are placed in the main body groove of the cover plate 5.
3. The rotary cable clamp 6 is buckled on the cable 2 and is fastened into a whole by a screw 7.
4. The fixed cable 2 and the rotary cable clamp 6 are put into the spherical annular guide rail 4 of the bypass short section 1 main body.
5. And buckling the cover plate 5 on the main body of the bypass short section 1 and fastening by using a cover plate screw 3.
The invention relates to a cable force breaking device which comprises a rotary cable clamp plate and a spherical annular guide rail assembly; the cable clamp plate and the spherical annular guide rail are both in a split mode, so that the installation is convenient. The cable clamp plate is internally provided with a spiral guide groove for controlling the pulling and sliding force of the cable at the position. The two ends of the cable clamp plate main body are provided with a clamping plate for freely turning over the cable clamp plate main body. The spherical annular guide rail adopts a ball shape structure, so that the spherical groove on the cable clamp plate can freely rotate.
The invention has the following technical characteristics:
the rotary cable clamping plate in the cable breaking device is assembled into an integrated structure, and the logging cable is tightly held by the spiral guide groove in the cable breaking device under the action of the screw; the rotary cable clamp plate is placed in the spherical annular guide rail to rotate freely.
All the components of the invention adopt split structures, the assembly is convenient, the torsion release of the logging cable is effectively solved, the safe use of the logging cable is ensured, when an underground accident occurs, the cable applies certain tension to pull out the spiral guide groove of the clamping plate, and the technical guarantee is provided for rapidly processing the underground accident. The horizontal well logging device is simple in structure, convenient to assemble and free to rotate, and effectively meets the requirement of breaking the cable in horizontal well logging construction.
Although specific embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the specific embodiments described above, which are intended to be illustrative, instructive, and not restrictive. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto without departing from the scope of the invention as defined by the appended claims.
Claims (8)
1. A cable force breaking device is characterized by comprising a cover plate (5), a rotary cable clamp plate (6) and a spherical annular guide rail assembly; a through hole for the cable (2) to pass through is formed in the middle of the rotary cable clamp plate (6), and spherical annular guide grooves are formed in two ends of the rotary cable clamp plate (6); the spherical annular guide rail assembly comprises two spherical annular guide rails (4), the two spherical annular guide rails (4) are arranged at two ends of the rotary cable clamp plate (6), and the spherical annular guide rails (4) are matched and connected with the spherical annular guide grooves; the cover plate (5) is arranged outside the rotary cable clamp plate (6) and the spherical annular guide rail assembly;
the novel spherical guide rail structure is characterized in that clamping grooves for placing the spherical annular guide rails (4) are formed in the two ends of the cover plate (5), the spherical annular guide rails (4) are arranged in the clamping grooves of the cover plate (5), and the spherical annular guide rails (4) can rotate in the clamping grooves.
2. A cable failure device as claimed in claim 1, wherein the body of the rotary cable clamp (6) is provided with anti-slip threads.
3. A cable failure device as claimed in claim 1, wherein the rotatable cable clamp (6) comprises two semi-cylindrical structures, a through hole for the cable (2) to pass through is formed between the semi-cylindrical structures, and the two semi-cylindrical structures are detachably connected.
4. A cable busting apparatus as claimed in claim 3, wherein a plurality of threaded holes are spaced apart from each other on said two semi-cylindrical structures, and said two semi-cylindrical structures are fixedly connected to said threaded holes by screws (7).
5. A cable failure device according to claim 1, characterized in that the ball-shaped guide track (4) is internally provided with a ball-shaped sliding surface which is matched with the ball-shaped annular guide groove on the rotary cable clamp plate (6).
6. A cable stiffness device according to claim 5, characterized in that the ball-shaped annular guide (4) comprises two semi-annular structures, which are arranged opposite each other to form a complete ball-shaped annular guide (4).
7. A cable breaking device according to claim 1, characterized in that the two ends of the cover plate (5) are provided with cover plate screws (3) for fixing with the bypass short section (1).
8. A cable breaking device according to claim 7, characterized in that the bypass sub (1) is provided with grooves for placing the rotary cable clamp (6) and the spherical annular guide rail assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085660.7A CN109742696B (en) | 2019-01-29 | 2019-01-29 | Cable power breaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085660.7A CN109742696B (en) | 2019-01-29 | 2019-01-29 | Cable power breaking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109742696A CN109742696A (en) | 2019-05-10 |
| CN109742696B true CN109742696B (en) | 2020-09-04 |
Family
ID=66366580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910085660.7A Active CN109742696B (en) | 2019-01-29 | 2019-01-29 | Cable power breaking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109742696B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041993A (en) * | 2009-10-20 | 2011-05-04 | 西安恒赛新技术有限公司 | Rotating short joint for oil well logging |
| CN203632186U (en) * | 2013-12-26 | 2014-06-04 | 贵州高峰石油机械股份有限公司 | Device used for bypass short circuit of logging cable |
| CN205670667U (en) * | 2016-06-02 | 2016-11-02 | 北京金风科创风电设备有限公司 | Cable protecting device and wind power generating set |
| CN107689604A (en) * | 2016-08-03 | 2018-02-13 | 大陆汽车电子（连云港）有限公司 | Fastener for fixed cable |
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2019
- 2019-01-29 CN CN201910085660.7A patent/CN109742696B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109742696A (en) | 2019-05-10 |
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