CN109403947B - Load-bearing cable for underground logging instrument for petroleum and natural gas exploitation - Google Patents
Load-bearing cable for underground logging instrument for petroleum and natural gas exploitation Download PDFInfo
- Publication number
- CN109403947B CN109403947B CN201811052701.4A CN201811052701A CN109403947B CN 109403947 B CN109403947 B CN 109403947B CN 201811052701 A CN201811052701 A CN 201811052701A CN 109403947 B CN109403947 B CN 109403947B
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- China
- Prior art keywords
- guide rail
- cable
- load
- bearing
- roller
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000003345 natural gas Substances 0.000 title claims abstract description 11
- 239000003209 petroleum derivative Substances 0.000 title abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 38
- 239000007789 gas Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 8
- 238000009434 installation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
-
- 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
- E21B47/00—Survey of boreholes or wells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/643—Devices for uninterrupted current collection through ball or roller bearing
Abstract
The invention discloses a loading cable for an underground logging instrument for petroleum and natural gas exploitation, which comprises a loading cable and a logging instrument electrically connected with the loading cable, wherein the loading cable comprises a loading detection cable and a guide rail sleeve, the outer side of the loading detection cable is fixedly wrapped with the guide rail sleeve, the outer side of the guide rail sleeve is respectively provided with a double-spiral guide rail groove and a clamping groove, the outer sides of the guide rail grooves and the clamping grooves are movably clamped with an upper sliding sleeve, the upper sliding sleeve comprises an upper sliding sleeve frame, a driving roller, a motor and an electromagnetic limiting device, the upper end of the upper sliding sleeve frame is fixedly provided with a lower connecting frame, and a sliding ring is arranged on the lower connecting frame. The load-bearing cable comprises the load-bearing detection cable and the guide rail sleeve, wherein the load-bearing detection cable is a high-strength load cable in the prior art, the surface of the load-bearing detection cable is provided with the spiral armored steel wire, when the guide rail sleeve is covered on the outer side of the load-bearing detection cable, the inner surface of the guide rail sleeve is naturally spiral, and the guide rail sleeve is in threaded connection with the load-bearing detection cable, so that the guide rail sleeve is not easy to slide.
Description
Technical Field
The invention relates to the technical field of petroleum and natural gas exploitation equipment, in particular to a load-bearing cable for an underground logging instrument for petroleum and natural gas exploitation.
Background
With the continuous development of petroleum and natural gas field development technologies, the open hole wells of the highly deviated oil and gas fields are more and more, the situation of irregular well track is frequently encountered in the process of lowering the logging instrument by adopting a conventional cable, the geological conditions of the development of the oil and gas fields are complex, the highly deviated, large-displacement directional well technology and the well depth track are difficult to control, the drilling speed is improved, the period is shortened, if the well and slurry are not well processed, the unstable well wall is caused, the well track is poor and other complex well environments are caused, the situation that the well is blocked is increased, the blockage is often not crossed, the operation is failed, if the logging cannot be successfully performed, the logging is necessary to be performed again, and the time and the cost brought by repeated logging are increased.
In order to solve the problem of the jamming of the logging instrument, the related unlocking device can be automatically lowered to the corresponding position along the loading cable, the loading cable cannot support related equipment at present and plays a role in guiding, and therefore the loading cable for the underground logging instrument for petroleum and natural gas exploitation is provided for solving the problem.
Disclosure of Invention
The invention aims to provide a load-bearing cable for an underground logging instrument for petroleum and natural gas exploitation, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a bearing cable for oil and natural gas exploitation downhole logging instrument, includes bearing cable and its electric connection's logging instrument, bearing cable includes bearing detection cable and guide rail sleeve, bearing detection cable outside fixed parcel has the guide rail sleeve, guide rail sleeve lateral surface is equipped with double helix's guide rail groove and draw-in groove respectively, the outside activity joint of guide rail groove and draw-in groove has an upper sliding sleeve, the upper sliding sleeve includes upper sliding sleeve frame, driving roller, motor and electromagnetic stop device, upper sliding sleeve frame sliding sleeve is in the guide rail sleeve outside, and the both sides fixed mounting of upper sliding sleeve frame have driving roller, driving roller divide into gyro wheel mounting bracket, gyro wheel axle, gyro wheel and bearing, gyro wheel mounting bracket fixed mounting is in the both sides of upper sliding sleeve frame, and be hollow structure in this gyro wheel mounting bracket, its both ends are fixed respectively and are equipped with the bearing, the inner circle of bearing is fixed connection gyro wheel respectively on the intermediate position of gyro wheel axle, gyro wheel activity joint is in the guide rail groove, and the gyro wheel of gyro wheel axle is fixed connection motor drive end, the motor is installed on the gyro wheel mounting bracket;
the inner end face of the upper sliding sleeve frame is concavely provided with a limit mounting groove, an electromagnetic limit device is movably arranged in the limit mounting groove, the electromagnetic limit device comprises a clamping block, a first electromagnet, a spring and a second electromagnet, the second electromagnet is fixedly arranged at the inner end of the limit mounting groove, the outer end of the second electromagnet is fixedly connected with the first electromagnet through the spring, the outer end of the first electromagnet is fixedly provided with the clamping block, and the clamping block is movably clamped in the clamping groove;
the upper end of the upper sliding sleeve frame is fixedly provided with a lower connecting frame, the lower connecting frame is provided with a sliding ring, the sliding ring comprises a conductive sliding ring, an inner sliding ring and a cylindrical roller, the inner end of the conductive sliding ring is fixedly connected with the inner sliding ring through a threaded structure, the inner ring of the inner sliding ring is movably embedded with the cylindrical roller, and the cylindrical roller is in rolling contact with the outer side of the guide rail sleeve.
Preferably, the load-bearing detection cable comprises a soft copper stranded wire, an improved polypropylene insulating layer is covered on the outer side of the soft copper stranded wire, a split-phase shielding layer is covered on the outer side of the improved polypropylene insulating layer, a semi-conductive filling layer is filled between adjacent split-phase shielding layers, a semi-conductive longitudinal shielding layer is covered on the outer side of the semi-conductive filling layer, an inner-layer armor wire is spirally fixed on the semi-conductive longitudinal shielding layer, and an outer-layer armor wire is spirally fixed on the outer layer of the inner-layer armor wire.
Preferably, a spiral installation groove is penetrated in the guide rail sleeve, and the spiral structure of the spiral installation groove is matched with the spiral structure of the surface layer of the load-bearing detection cable.
Preferably, the roller mounting frame is obliquely arranged on two sides of the upper sliding sleeve frame, rollers are fixedly arranged on the roller mounting frame, and rubber anti-skidding sleeves are covered on the outer sides of the rollers.
Preferably, the driving roller comprises a bearing end cover and a wear-resisting pad, the bearing end cover is fixedly arranged on the outer side of the bearing through bolts, the wear-resisting pad is arranged on two sides of the roller, and the outer side of the wear-resisting pad is in sliding contact with the roller mounting frame.
Preferably, when the first electromagnet and the second electromagnet are electrified simultaneously, the magnetic poles at the opposite ends of the first electromagnet and the second electromagnet are the same, the first electromagnet extends outwards, the spring is in a stretching state, when the first electromagnet and the second electromagnet are not electrified, the spring is recovered to be long, and the clamping block is positioned in the limiting installation groove.
Preferably, a plurality of protruding blocks are discontinuously protruded in the clamping groove, and the clamping block is movably clamped between two adjacent protruding blocks.
Preferably, the upper end of the conductive slip ring is provided with an upper connector, the lower end of the conductive slip ring is provided with a lower connector, the upper connector is electrically connected with an external power supply, the lower connector is electrically connected with a motor, the outer side surface of the conductive slip ring is symmetrically provided with an upper connecting frame, and the upper connecting frame is fixedly connected with the lower connecting frame through bolts.
Preferably, the inner ring section of the inner slip ring is of a square structure, and the width of the inner ring of the inner slip ring is larger than the diameter of the guide rail sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. the bearing cable comprises the bearing detection cable and the guide rail sleeve, wherein the bearing detection cable is a high-strength load cable in the prior art, the surface of the bearing detection cable is provided with the spiral armored steel wire, when the guide rail sleeve is covered on the outer side of the bearing detection cable, the inner surface of the guide rail sleeve is naturally spiral, and the guide rail sleeve is in threaded connection with the bearing detection cable, so that the guide rail sleeve is not easy to slide off, and the strength and the stability of the whole cable are ensured when the bearing detection cable is loaded on related logging equipment;
2. an upper sliding sleeve is arranged on the surface of the guide rail sleeve, wherein the driving roller is in rolling joint with a guide rail groove on the guide rail sleeve, the inclination angle of the driving roller is consistent with the spiral angle of the guide rail groove, a motor on the upper sliding sleeve is powered by an external power supply, and the motor drives the driving roller to roll in the guide rail groove during working, so that the whole upper sliding sleeve performs spiral motion on the guide rail sleeve, further the position of the upper sliding sleeve on a loading cable is controlled, related equipment can be fixed on the upper sliding sleeve, and therefore, under the action of the upper sliding sleeve, the related equipment for logging can also move along the loading cable;
3. when the upper sliding sleeve is required to be fixedly clamped on the guide rail sleeve, an external power supply is controlled to supply power to the first electromagnet and the second electromagnet, the magnetic poles at the opposite ends of the first electromagnet are identical, the first electromagnet extends outwards, so that the clamping block extends out of the limit mounting groove, a plurality of protruding blocks are discontinuously and convexly arranged in the clamping groove, and the extending clamping block is movably clamped between the two adjacent protruding blocks;
4. the conductive slip ring is a common technology in the field, and when the upper slip ring and the lower slip ring spirally move on the guide rail sleeve, the slip ring can ensure that power supply wires on the motor, the first electromagnet and the second electromagnet are not twisted or wound on the guide rail sleeve.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the load-bearing cable and the upper sliding sleeve in the present invention;
FIG. 3 is a schematic view of a load-bearing cable according to the present invention;
FIG. 4 is an enlarged view of the invention at A in FIG. 3;
FIG. 5 is a schematic view of the load-bearing detection cable according to the present invention;
FIG. 6 is an enlarged view of the invention at D in FIG. 5;
FIG. 7 is a schematic perspective view of a guide rail cover according to the present invention;
FIG. 8 is a front view of a guide rail housing according to the present invention;
FIG. 9 is a cross-sectional view taken along line E-E of FIG. 8 in accordance with the present invention;
FIG. 10 is a schematic view of the upper sliding sleeve structure in the present invention;
FIG. 11 is a partial cross-sectional view of the upper sliding sleeve of the present invention;
FIG. 12 is a schematic view of a driving roller structure according to the present invention;
FIG. 13 is another partial cross-sectional view of an upper sliding sleeve of the present invention;
FIG. 14 is an enlarged view of FIG. 13 at C in accordance with the present invention;
FIG. 15 is a schematic perspective view of a slip ring according to the present invention;
FIG. 16 is a top view of a slip ring according to the present invention;
FIG. 17 is a cross-sectional view taken at B-B of FIG. 16 in accordance with the present invention.
In the figure: 1 load-bearing cable, 11 load-bearing detection cable, 111 soft copper stranded wire, 112 improved polypropylene insulating layer, 113 split-phase shielding layer, 114 semi-conductive filling layer, 115 semi-conductive longitudinal shielding layer, 116 inner layer armoured steel wire, 117 outer layer armoured steel wire, 12 guide rail sleeve, 1201 guide rail groove, 1202 clamping groove, 1203 spiral installation groove, 2 logging instrument, 3 upper sliding sleeve, 31 upper sliding sleeve frame, 3101 lower connecting frame, 3102 limit installation groove, 32 driving roller, 321 roller installation frame, 322 roller shaft, 323 roller, 324 bearing, 325 bearing end cover, 326 wear-resisting pad, 33 motor, 34 electromagnetic limit device, 341 clamping block, 342 first electromagnet, 343 spring, 344 second electromagnet, 4 sliding ring, 41 conductive sliding ring, 4101 upper joint, 4102 lower joint, 4103 upper connecting frame, 42 inner sliding ring, 43 cylindrical roller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-17, the present invention provides a technical solution: the utility model provides an oil and natural gas exploitation is load cable for logging instrument in pit, including load cable 1 and its electric connection's logging instrument 2, load cable 1 includes load detection cable 11 and guide rail cover 12, load detection cable 11 includes soft copper stranded conductor 111, the outside of soft copper stranded conductor 111 is covered with modified polypropylene insulating layer 112, the outside of modified polypropylene insulating layer 112 is covered with split phase shielding layer 113, it has semiconductive filling layer 114 to fill between a plurality of adjacent split phase shielding layers 113, semiconductive filling layer 114 outside is covered with semiconductive longitudinal shielding layer 115, semiconductive longitudinal shielding layer 115 spiral is fixed with inlayer armor wire 116, the skin spiral of inlayer armor wire 116 is fixed with skin armor wire 117.
Referring to fig. 3-9, a guide rail sleeve 12 is fixedly wrapped on the outer side of the load-bearing detection cable 11, a spiral installation groove 1203 is penetrated in the guide rail sleeve 12, the spiral structure of the spiral installation groove 1203 is matched with the spiral structure of the surface layer of the load-bearing detection cable 11, and double-spiral guide rail grooves 1201 and clamping grooves 1202 are respectively arranged on the outer side surface of the guide rail sleeve 12.
Referring to fig. 1-2 and fig. 10-13, an upper sliding sleeve 3 is movably clamped at the outer sides of a guide rail groove 1201 and a clamping groove 1202, the upper sliding sleeve 3 comprises an upper sliding sleeve frame 31, a driving roller 32, a motor 33 and an electromagnetic limiting device 34, the upper sliding sleeve frame 31 is slidably sleeved at the outer side of a guide rail sleeve 12, the driving roller 32 is fixedly arranged at two sides of the upper sliding sleeve frame 31, the driving roller 32 is divided into a roller mounting frame 321, a roller shaft 322, a roller 323 and a bearing 324, the roller mounting frame 321 is fixedly arranged at two sides of the upper sliding sleeve frame 31, the roller mounting frame 321 is of a hollow structure, the two ends of the roller mounting frame 321 are respectively fixedly provided with the bearing 324, the inner rings of the bearing 324 are respectively fixedly connected with the roller shaft 322, a roller 323 is fixedly connected with the middle position of the roller shaft 322, the roller 323 is movably clamped in the guide rail groove 1201, one end of the roller shaft 322 is fixedly connected with the driving end of the motor 33, the motor 33 is arranged on the roller mounting frame 321, the motor 33 is powered by an external power supply, the motor 33 on the upper sliding sleeve 3, the motor 33 is driven by an external power supply, and the driving roller 32 is driven to roll in the guide rail groove 1201, so that the whole upper sliding sleeve 3 can spirally move on the guide rail sleeve 12.
Referring to fig. 10-12, the driving roller 32 further includes a bearing end cap 325 and wear pads 326, the bearing end cap 325 is fixedly mounted on the outer side of the bearing 324 by bolts, the wear pads 326 are mounted on both sides of the roller 323, and the outer sides of the wear pads 326 are in sliding contact with the roller mounting frame 321.
Referring to fig. 10-13, the roller mounting frames 321 are obliquely mounted on two sides of the upper sliding sleeve frame 31, rollers 323 are fixedly mounted on the roller mounting frames 321, and rubber anti-skidding sleeves are covered on the outer sides of the rollers 323.
Referring to fig. 10-14, a limit mounting groove 3102 is concavely provided on an inner end surface of the upper sliding sleeve frame 31, an electromagnetic limit device 34 is movably provided in the limit mounting groove 3102, the electromagnetic limit device 34 includes a clamping block 341, a first electromagnet 342, a spring 343 and a second electromagnet 344, the second electromagnet 344 is fixedly mounted on an inner end of the limit mounting groove 3102, an outer end of the second electromagnet 344 is fixedly connected with the first electromagnet 342 through the spring 343, a clamping block 341 is fixedly provided at an outer end of the first electromagnet 342, the clamping block 341 is movably clamped in a clamping groove 1202, when the upper sliding sleeve 3 needs to be fixedly clamped on the guide rail sleeve 12, an external power supply is controlled to supply power to the first electromagnet 342 and the second electromagnet 344, opposite end magnetic poles are identical, the first electromagnet 342 extends outwards, so that the clamping block 341 extends out from the limit mounting groove 3102, a plurality of protruding blocks are intermittently protruded in the clamping groove 1202, and the protruded clamping block 341 is movably clamped between two adjacent protruding blocks.
When the first electromagnet 342 and the second electromagnet 344 are electrified simultaneously, the magnetic poles at the opposite ends of the first electromagnet 342 are the same, the first electromagnet 342 extends outwards, the spring 343 is in a stretched state, when the first electromagnet 342 and the second electromagnet 344 are not electrified, the spring 343 is restored to the original length, and the clamping block 341 is positioned in the limiting mounting groove 3102.
Referring to fig. 1-2 and fig. 15-17, a lower connecting frame 3101 is fixedly arranged at the upper end of the upper sliding sleeve frame 31, a sliding ring 4 is installed on the lower connecting frame 3101, the sliding ring 4 comprises a conductive sliding ring 41, an inner sliding ring 42 and a cylindrical roller 43, the inner end of the conductive sliding ring 41 is fixedly connected with the inner sliding ring 42 through a threaded structure, the inner ring of the inner sliding ring 42 is movably embedded with the cylindrical roller 43, and the cylindrical roller 43 is in rolling contact with the outer side of the guide rail sleeve 12.
The upper end of the conductive slip ring 41 is provided with an upper joint 4101, the lower end of the conductive slip ring 41 is provided with a lower joint 4102, the upper joint 4101 is electrically connected with an external power supply, the lower joint 4102 is electrically connected with the motor 33, the outer side surface of the conductive slip ring 41 is symmetrically provided with an upper connecting frame 4103, the upper connecting frame 4103 is fixedly connected with a lower connecting frame 3101 through bolts, the conductive slip ring 41 is a common technology in the art, and when the upper slip ring 3 and the lower slip ring 6 spirally move on the guide rail sleeve 12, the slip ring 4 can ensure that power supply wires on the motor 33, the first electromagnet 342 and the second electromagnet 344 are not twisted or wound on the guide rail sleeve 12.
The inner ring section of the inner slip ring 42 has a square structure, and the inner ring width of the inner slip ring 42 is larger than the diameter of the guide rail sleeve 12.
Working principle: the loading cable 1 in the invention is composed of a loading detection cable 11 and a guide rail sleeve 12, wherein the loading detection cable 11 is a high-strength loading cable in the prior art, the surface of the loading detection cable 11 is provided with a spiral armored steel wire, when the outer side of the loading detection cable 11 is covered with the guide rail sleeve 12, the inner surface of the guide rail sleeve 12 is naturally spiral, the guide rail sleeve 12 and the loading detection cable 11 are in threaded connection, so that the guide rail sleeve 12 is not easy to slide, the strength and the stability of the whole cable are ensured when the loading detection cable 1 is loaded on logging equipment related to the logging equipment, an upper sliding sleeve 3 is arranged on the surface of the guide rail sleeve 12, a driving roller 32 is in rolling joint with a guide rail groove 1201 on the guide rail sleeve 12, the inclination angle of the driving roller 32 is consistent with the spiral angle of the guide rail groove 1201, a motor 33 on the upper sliding sleeve 3 is powered by an external power supply, and the driving roller 32 is driven to roll in the guide rail groove 1201 when the motor 33 works, so that the whole upper sliding sleeve 3 makes spiral movement on the guide rail sleeve 12, and then the position of the upper sliding sleeve 3 on the loading cable 1 is controlled, related equipment can be fixed on the upper sliding sleeve 3, so that under the action of the upper sliding sleeve 3, related equipment for logging can also move along the loading cable 1, when the upper sliding sleeve 3 needs to be fixedly clamped on the guide rail sleeve 12, an external power supply is controlled to supply power to the first electromagnet 342 and the second electromagnet 344, the opposite magnetic poles of one end of the first electromagnet 342 are the same, the first electromagnet 342 extends outwards, a clamping block 341 extends from the limiting mounting groove 3102, a plurality of protruding blocks are discontinuously and convexly arranged in the clamping groove 1202, the extending clamping block 341 is movably clamped between the two adjacent protruding blocks, the conductive sliding ring 41 is a common technology in the field, and the sliding ring 4 can ensure the motor 33, the power supply wires on the first electromagnet 342 and the second electromagnet 344 are not twisted or wound around the guide rail housing 12.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a bearing cable for oil and natural gas exploitation downhole logging instrument, includes bearing cable (1) and logging instrument (2) rather than electric connection, its characterized in that: the bearing cable (1) comprises a bearing detection cable (11) and a guide rail sleeve (12), the guide rail sleeve (12) is fixedly wrapped on the outer side of the bearing detection cable (11), a double-spiral guide rail groove (1201) and a clamping groove (1202) are respectively arranged on the outer side surface of the guide rail sleeve (12), an upper sliding sleeve (3) is movably clamped on the outer sides of the guide rail groove (1201) and the clamping groove (1202), the upper sliding sleeve (3) comprises an upper sliding sleeve frame (31), a driving roller (32), a motor (33) and an electromagnetic limiting device (34), the upper sliding sleeve frame (31) is sleeved on the outer side of the guide rail sleeve (12) in a sliding manner, the driving roller (32) is fixedly arranged on two sides of the upper sliding sleeve frame (31) and divided into a roller mounting frame (321), a roller axle (322), a roller (323) and a bearing (324) are respectively and fixedly arranged on two ends of the roller mounting frame (321) and are respectively and fixedly connected with the roller axle (323) in a hollow structure, the roller axle (323) is fixedly connected with the middle of the roller axle (323) in the middle of the guide rail (323), one end of the roller shaft (322) is fixedly connected with the driving end of the motor (33), and the motor (33) is arranged on the roller mounting frame (321);
the upper sliding sleeve frame (31) is characterized in that a limit mounting groove (3102) is concavely formed in the inner end face of the upper sliding sleeve frame (31), an electromagnetic limit device (34) is movably arranged in the limit mounting groove (3102), the electromagnetic limit device (34) comprises a clamping block (341), a first electromagnet (342), a spring (343) and a second electromagnet (344), the second electromagnet (344) is fixedly arranged at the inner end of the limit mounting groove (3102), the outer end of the second electromagnet (344) is fixedly connected with the first electromagnet (342) through the spring (343), the clamping block (341) is fixedly arranged at the outer end of the first electromagnet (342), and the clamping block (341) is movably clamped in the clamping groove (1202);
the upper end of the upper sliding sleeve frame (31) is fixedly provided with a lower connecting frame (3101), a sliding ring (4) is arranged on the lower connecting frame (3101), the sliding ring (4) comprises a conductive sliding ring (41), an inner sliding ring (42) and a cylindrical roller (43), the inner end of the conductive sliding ring (41) is fixedly connected with the inner sliding ring (42) through a threaded structure, the cylindrical roller (43) is movably embedded in the inner ring of the inner sliding ring (42), and the cylindrical roller (43) is in rolling contact with the outer side of the guide rail sleeve (12).
2. The load-bearing cable for a downhole logging tool for oil and gas production of claim 1, wherein: the load-bearing detection cable (11) comprises soft copper stranded wires (111), an improved polypropylene insulating layer (112) is covered on the outer side of the soft copper stranded wires (111), a split-phase shielding layer (113) is covered on the outer side of the improved polypropylene insulating layer (112), a semi-conductive filling layer (114) is filled between adjacent multiple split-phase shielding layers (113), a semi-conductive longitudinal shielding layer (115) is covered on the outer side of the semi-conductive filling layer (114), an inner-layer armor steel wire (116) is spirally fixed on the semi-conductive longitudinal shielding layer (115), and an outer-layer armor steel wire (117) is spirally fixed on the outer layer of the inner-layer armor steel wire (116).
3. The load-bearing cable for a downhole logging tool for oil and gas production of claim 1, wherein: the guide rail sleeve (12) is internally penetrated with a spiral mounting groove (1203), and the spiral structure of the spiral mounting groove (1203) is matched with the spiral structure of the surface layer of the load bearing detection cable (11).
4. The load-bearing cable for a downhole logging tool for oil and gas production of claim 1, wherein: the roller mounting frame (321) is obliquely arranged on two sides of the upper sliding sleeve frame (31), rollers (323) are fixedly arranged on the roller mounting frame (321), and rubber anti-skidding sleeves are covered on the outer sides of the rollers (323).
5. The load-bearing cable for a downhole logging tool for oil and gas production of claim 1, wherein: the driving roller (32) comprises a bearing end cover (325) and wear-resistant pads (326), the bearing end cover (325) is fixedly arranged on the outer side of the bearing (324) through bolts, the wear-resistant pads (326) are arranged on two sides of the roller (323), and the outer sides of the wear-resistant pads (326) are in sliding contact with the roller mounting frame (321).
6. The load-bearing cable for a downhole logging tool for oil and gas production of claim 1, wherein: when first electro-magnet (342) and second electro-magnet (344) are simultaneously energized, the relative one end magnetic poles of the first electro-magnet (342) are the same, the first electro-magnet (343) outwards stretches out, spring (343) are in the tensile state, when first electro-magnet (342) and second electro-magnet (344) are not energized, spring (343) resumes former length, and fixture block (341) is located spacing mounting groove (3102).
7. The load-bearing cable for a downhole logging tool for oil and gas production of claim 1, wherein: a plurality of protruding blocks are discontinuously protruded in the clamping groove (1202), and the clamping block (341) is movably clamped between two adjacent protruding blocks.
8. The load-bearing cable for a downhole logging tool for oil and gas production of claim 1, wherein: the upper end of the conductive slip ring (41) is provided with an upper connector (4101), the lower end of the conductive slip ring is provided with a lower connector (4102), the upper connector (4101) is electrically connected with an external power supply, the lower connector (4102) is electrically connected with the motor (33), the outer side surface of the conductive slip ring (41) is symmetrically provided with an upper connecting frame (4103), and the upper connecting frame (4103) is fixedly connected with the lower connecting frame (3101) through bolts.
9. The load-bearing cable for a downhole logging tool for oil and gas production of claim 1, wherein: the inner ring section of the inner sliding ring (42) is of a square structure, and the width of the inner ring of the inner sliding ring (42) is larger than the diameter of the guide rail sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052701.4A CN109403947B (en) | 2018-09-10 | 2018-09-10 | Load-bearing cable for underground logging instrument for petroleum and natural gas exploitation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052701.4A CN109403947B (en) | 2018-09-10 | 2018-09-10 | Load-bearing cable for underground logging instrument for petroleum and natural gas exploitation |
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| Publication Number | Publication Date |
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| CN109403947A CN109403947A (en) | 2019-03-01 |
| CN109403947B true CN109403947B (en) | 2024-01-02 |
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| CN201811052701.4A Active CN109403947B (en) | 2018-09-10 | 2018-09-10 | Load-bearing cable for underground logging instrument for petroleum and natural gas exploitation |
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| CN113266308B (en) * | 2021-06-21 | 2022-04-05 | 西南石油大学 | Well cementation sliding sleeve and method for infinite-stage alternate fracturing full-path switch of horizontal well |
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| US20030234110A1 (en) * | 2002-06-19 | 2003-12-25 | Mcgregor Ronald W. | Dockable direct mechanical actuator for downhole tools and method |
| CN101214412A (en) * | 2008-01-15 | 2008-07-09 | 东南大学 | Scroll cable detecting robot |
| CN103573253A (en) * | 2013-10-11 | 2014-02-12 | 郑州宜源翔石油科技有限公司 | Unblocking device of cable logging instrument |
| CN103991076A (en) * | 2014-06-06 | 2014-08-20 | 西南石油大学 | Jack catch type steel wire rope crawl device |
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2018
- 2018-09-10 CN CN201811052701.4A patent/CN109403947B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030234110A1 (en) * | 2002-06-19 | 2003-12-25 | Mcgregor Ronald W. | Dockable direct mechanical actuator for downhole tools and method |
| CN101214412A (en) * | 2008-01-15 | 2008-07-09 | 东南大学 | Scroll cable detecting robot |
| CN103573253A (en) * | 2013-10-11 | 2014-02-12 | 郑州宜源翔石油科技有限公司 | Unblocking device of cable logging instrument |
| CN103991076A (en) * | 2014-06-06 | 2014-08-20 | 西南石油大学 | Jack catch type steel wire rope crawl device |
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| CN109403947A (en) | 2019-03-01 |
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