CN116950577B - Conversion nipple of logging while drilling instrument - Google Patents
Conversion nipple of logging while drilling instrument Download PDFInfo
- Publication number
- CN116950577B CN116950577B CN202311204457.XA CN202311204457A CN116950577B CN 116950577 B CN116950577 B CN 116950577B CN 202311204457 A CN202311204457 A CN 202311204457A CN 116950577 B CN116950577 B CN 116950577B
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- ring
- nipple
- joint
- drill collar
- logging
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- 210000002445 nipple Anatomy 0.000 title claims abstract description 92
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 30
- 238000005553 drilling Methods 0.000 title claims abstract description 26
- 230000000694 effects Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- 239000007769 metal material Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims 3
- 125000006850 spacer group Chemical group 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 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
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/02—Couplings; joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/02—Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geophysics (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a conversion nipple of a logging while drilling instrument, which solves the technical problem of poor use suitability. The device comprises a drill collar nipple, wherein a male interface is arranged at one end of the drill collar nipple, a female interface is arranged at the other end of the drill collar nipple, a conduction assembly is arranged in the drill collar nipple, the conduction assembly comprises a male slip ring, a joint assembly and a female slip ring which are sequentially arranged, a male contact is arranged on the male slip ring, a female contact is arranged on the female slip ring, and the male contact and the female contact are respectively connected with the joint assembly in a conductive manner; the joint assembly and the male slip ring are respectively connected with the drill collar nipple, the female slip ring is connected with the joint assembly through fastening screws, and at least one group of adjusting gaskets are arranged between the female slip ring and the joint assembly so as to realize the adjustment of the axial position of the female slip ring along the drill collar nipple. The invention enables the position of the female slip ring along the axial direction of the drill collar pup joint to be adjusted, thereby adapting to logging instruments of different types and further improving the use suitability of the conversion pup joint.
Description
Technical Field
The invention belongs to the technical field of switching joints, and particularly relates to a switching nipple of a logging while drilling instrument.
Background
The logging while drilling instrument is divided into different types of logging instruments according to a logging method, various logging while drilling instruments are independently designed and developed, and finally different logging while drilling instruments are connected together in series according to different use requirements to perform downhole logging operation.
The interfaces of different logging while drilling instruments are different, that is, the interfaces are affected by the structural dimensions of the logging instruments, and the threads of the rotating shoulders for instrument connection are different, so that a conversion nipple is required to connect two logging instruments together.
The conversion nipple in the related art generally comprises a drill collar nipple, wherein one end of the drill collar nipple is provided with a male connector, the other end of the drill collar nipple is provided with a female connector, and a conduction assembly is arranged in the drill collar nipple. One logging instrument is connected with the male interface, the other logging instrument is connected with the female interface, and conductive ends on the two logging instruments are respectively contacted with corresponding contacts on the conducting assembly, so that the two logging instruments can be electrically connected.
However, because the conductive component is fixed in the drill collar nipple, the conductive end of the logging instrument cannot be in contact with the contact of the conductive component after the logging instrument is inserted into the female interface and is in threaded connection with the female interface due to different lengths of the conductive ends of different logging instruments, so that the use suitability of the conversion nipple is affected and needs to be improved.
Disclosure of Invention
In order to solve all or part of the problems, the invention aims to provide a conversion nipple of a logging while drilling instrument, which can improve the use suitability of the conversion nipple.
The invention provides a conversion nipple of a logging-while-drilling instrument, which comprises a drill collar nipple, wherein one end of the drill collar nipple is provided with a male interface, the other end of the drill collar nipple is provided with a female interface, a conduction assembly is arranged in the drill collar nipple, the conduction assembly comprises a male slip ring, a joint assembly and a female slip ring which are sequentially arranged, a male contact is arranged on the male slip ring, a female contact is arranged on the female slip ring, and the male contact and the female contact are respectively connected with the joint assembly in a conductive manner;
the joint assembly and the male slip ring are respectively connected with the drill collar nipple, the female slip ring is connected with the joint assembly through a fastening screw, and at least one group of adjusting gaskets are arranged between the female slip ring and the joint assembly so as to realize the adjustment of the axial position of the female slip ring along the drill collar nipple.
Optionally, a limiting hole is formed in the adjusting gasket, and the fastening screw can pass through the limiting hole.
Optionally, the male slip ring includes the slip ring main part, the slip ring main part orientation joint assembly's one end integrated into one piece is provided with the step ring, the male contact set up in the slip ring main part is kept away from the one end of step ring, the drill collar nipple joint the inner wall seted up with step ring matched with step groove, joint assembly with the drill collar nipple joint passes through the locating part to be fixed, and will the step ring compresses tightly in the step groove.
Optionally, the locating part is including the clamp ring, locking ring and the accepting ring that set gradually, offer the breach of stepping down on the locking ring, and make the locking ring is "C" shape structure, the clamp ring is used for supporting joint assembly is kept away from the one end of sliding ring main part, accept the ring with joint assembly passes through limit screw and connects, just the clamp ring orientation the one end of locking ring is provided with the expansion inclined plane, the locking ring adopts elastic material to make, works as limit screw screws up, the locking ring can take place elastic expansion under the effect of expansion inclined plane, and supports tightly the inner wall of drill collar nipple joint.
Optionally, a guiding inclined plane is disposed at one end of the locking ring facing the compression ring, and the guiding inclined plane is matched with the expanding inclined plane.
Optionally, an exhaust hole is formed in the step ring, and when the slip ring main body is inserted into the drill collar nipple, air between the step ring and the step groove can be exhausted through the exhaust hole, so that the slip ring main body and the step ring can smoothly complete plug-in fit with the drill collar nipple.
Optionally, the connector assembly includes a wire connector, a conductive member is disposed on the wire connector, and the male contact and the female contact are respectively connected with the conductive member;
the end integrated into one piece who walks the line and connect is connected with can insert the support ring in the step intra-annular, the support ring is kept away from walk the one end that the line connects is provided with sealed inclined plane, the inner wall of step ring is provided with the confession sealed inclined plane butt accept the inclined plane.
Optionally, the slope of the receiving bevel is different from the slope of the sealing bevel, so that a wire sealing structure is formed between the receiving bevel and the sealing bevel.
Optionally, the inner wall of drill collar nipple joint has seted up the assembly groove, the slip is inserted in the assembly groove and is equipped with the locating strip, walk the line joint to be close to the one end of holding ring has been seted up the locating groove, the locating strip is rectangular shape, arc or circular, the locating groove with the locating strip assorted, and supplies the locating strip inserts.
Optionally, the positioning strip is made of a non-metal material, and when the positioning strip is inserted into the positioning groove, the outer side wall of the positioning strip is higher than the outer side wall of the wiring connector.
Optionally, an annular groove is formed in the inner wall, away from one end of the supporting ring, of the wiring connector, and the annular groove is used for plugging and matching with an external annular flow passage plug.
Optionally, the annular groove is inserted with a filling ring in a sliding manner, the inner diameter of the filling ring is the same as the inner diameter of the wiring connector, and the limiting piece can compress the filling ring in the annular groove.
Optionally, a first anode ring is inserted in the annular groove in a sliding manner, the inner diameter of the first anode ring is the same as the inner diameter of the wiring joint, and the limiting piece can compress the first anode ring in the annular groove;
the wiring connector and the first anode ring are respectively made of metal materials, the metal activity of the first anode ring is stronger than that of the wiring connector, and the first anode ring can form a corrosion anode.
Optionally, the outer side walls of the wiring connector and the supporting ring are respectively provided with a mounting groove, each mounting groove is internally provided with a second anode ring, the drill collar nipple, the step ring and the second anode ring are respectively made of metal materials, and the metal activity of the second anode ring is stronger than that of the drill collar nipple, the wiring connector and the step ring, and the second anode ring can form a corrosion anode.
Optionally, the second anode ring includes two semicircular elastic ring bodies, and two the elastic ring bodies can be butted into a ring shape, two the lateral walls of the elastic ring bodies are respectively integrated into one piece and connected with a locking strip, and the inner wall of the mounting groove is provided with a locking groove for the locking strip to be clamped in.
According to the technical scheme, the conversion nipple of the logging while drilling instrument provided by the invention has the following advantages:
the device can realize the adjustment of the axial position of the female slip ring along the drill collar pup joint to adapt to logging instruments of different models, and then improve the use suitability of the conversion pup joint.
Additional features and advantages of the invention will be set forth in the description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and do not limit the invention.
FIG. 1 is a schematic overall structure of embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of example 1 of the present invention;
FIG. 3 is a schematic structural view of a limiting member in embodiment 1 of the present invention;
FIG. 4 is an enlarged schematic view of area A of FIG. 2;
FIG. 5 is a cross-sectional view of a joint assembly and a male slip ring of embodiment 1 of the present invention;
FIG. 6 is an enlarged schematic view of area B of FIG. 5;
FIG. 7 is an enlarged schematic view of region C of FIG. 5;
FIG. 8 is a cross-sectional view of a second anode ring in example 1 of the present invention;
fig. 9 is a schematic overall structure of embodiment 2 of the present invention.
Reference numerals illustrate:
1. a drill collar nipple; 2. a male interface; 3. a female interface; 4. a conduction assembly; 41. a male slip ring; 411. a slip ring body; 412. a step ring; 42. a joint assembly; 421. a wiring connector; 422. a conductive member; 423. a first pin; 424. female plug terminals; 425. a male plug terminal; 426. a second pin; 43. a female slip ring; 44. a male contact; 45. a female contact; 5. a fastening screw; 6. adjusting the gasket; 7. a limiting hole; 8. a step groove; 9. a limiting piece; 91. a clamp ring; 92. a locking ring; 93. a receiving ring; 94. a relief notch; 95. expanding the inclined plane; 96. a guide slope; 97. a limit screw; 10. an exhaust hole; 11. a support ring; 12. sealing inclined planes; 13. a receiving inclined plane; 14. an assembly groove; 15. a positioning groove; 16. a positioning strip; 17. a ring hollow groove; 18. a first anode ring; 19. a second anode ring; 191. an elastic ring body; 192. a locking bar; 20. a locking groove; 21. a mounting groove; 22. and filling the ring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be arbitrarily combined with each other.
Example 1
Referring to fig. 1-8, an embodiment 1 of the present invention is shown, in which a conversion nipple of a logging while drilling instrument is disclosed, the conversion nipple includes a cylindrical drill collar nipple 1, one end of the drill collar nipple 1 is integrally formed with a male interface 2, and the other end is integrally formed with a female interface 3, and the male interface 2 and the female interface 3 are respectively used for threaded connection of the logging instrument.
In one embodiment, as shown in fig. 1, a conducting component 4 is disposed in the drill collar nipple 1, the conducting component 4 includes a male slip ring 41, a joint component 42 and a female slip ring 43 which are sequentially disposed, an annular male contact 44 is fixedly embedded at an end of the male slip ring 41, an annular female contact 45 is fixedly embedded at an end face of the female slip ring 43, and the male contact 44 and the female contact 45 are respectively electrically connected with the joint component 42.
One of the logging instruments is connected with the male interface 2, the other logging instrument is connected with the female interface 3, and when the conductive end of one logging instrument is contacted with the male contact 44 and the conductive end of the other logging instrument is contacted with the female contact 45, the electrical connection of the two logging instruments can be realized.
In one embodiment, as shown in FIG. 1, the joint assembly 42 and the male slip ring 41 are connected to the collar sub 1, respectively, and the female slip ring 43 is connected to the joint assembly 42 by the set screw 5. Meanwhile, at least one group of adjusting gaskets 6 is arranged between the female slip ring 43 and the joint assembly 42, and the adjustment of the axial position of the female slip ring 43 along the drill collar pup joint 1 can be realized by increasing or decreasing the number of the adjusting gaskets 6.
The conversion nipple of the logging while drilling instrument in this embodiment can realize the adjustment of the position of the female slip ring 43, that is, the axial position of the female slip ring 43 along the drill collar nipple 1 can be adjusted, so that the conductive ends of logging instruments with different lengths can be contacted with the female contact 45, thereby improving the use suitability. Meanwhile, when the logging instrument string is used for a long time, the number of the adjusting gaskets 6 can be increased, the tight abutting effect of the conductive end of the logging instrument and the female contact 45 can be ensured, and the risk of loose buckling of the logging instrument and the conversion nipple can be reduced.
In one embodiment, as shown in fig. 1 and 2, the adjusting gasket 6 is provided with a limiting hole 7, and the fastening screw 5 can pass through the limiting hole 7 to limit the adjusting gasket 6, so that the risk that the adjusting gasket 6 rotates in the drill collar nipple 1 is reduced, and the risk that the adjusting gasket 6 scratches the inner wall of the drill collar nipple 1 is reduced.
In one embodiment, as shown in fig. 1 and 2, the male slip ring 41 includes a slip ring body 411, one end of the slip ring body 411 facing the joint assembly 42 is integrally connected with a step ring 412, and the male contact 44 is fixedly embedded in one end of the slip ring body 411 away from the step ring 412.
In one embodiment, as shown in fig. 2, 3 and 4, the inner wall of the drill collar nipple 1 is provided with a step groove 8 matched with a step ring 412, the joint assembly 42 is connected with the drill collar nipple 1 through a limiting piece 9, and after the limiting piece 9 fixes the joint assembly 42 and the drill collar nipple 1, the joint assembly 42 can compress the step ring 412 in the step groove 8, so that the limitation of the joint assembly 42 and the male slip ring 41 is realized.
In one embodiment, as shown in fig. 2, 3 and 4, the limiting member 9 includes a compression ring 91, a locking ring 92 and a receiving ring 93 sequentially disposed, the locking ring 92 is made of an elastic material, and a yielding gap 94 is formed on the locking ring 92, so that the locking ring 92 has a "C" shape structure. In this embodiment, the locking ring 92 is made of a spring steel material, and in other embodiments, other elastic materials such as manganese steel may be used.
In one embodiment, as shown in fig. 2, 3 and 4, the compression ring 91 is used to abut against an end of the joint assembly 42 far away from the slip ring main body 411, the receiving ring 93 is connected with the joint assembly 42 by a limit screw 97, and an end of the compression ring 91 facing the locking ring 92 is integrally provided with an expansion slope 95. Meanwhile, an end of the locking ring 92 facing the compression ring 91 is integrally formed with a guide inclined surface 96, and the guide inclined surface 96 is engaged with the expansion inclined surface 95.
In one embodiment, as shown in fig. 2, 3 and 4, when the limit screw 97 is tightened, the locking ring 92 moves towards the compression ring 91, and at the same time, the locking ring 92 elastically expands under the action of the expansion slope 95 and the guide slope 96 and abuts against the inner wall of the collar nipple 1, thereby fixing the joint assembly 42 and the collar nipple.
By utilizing the elastic expansion of the locking ring 92, friction fixation is formed between the locking ring and the inner wall of the drill collar nipple 1, and compared with the risk that the joint assembly 42 and the drill collar nipple are connected through screws, the fixation mode does not need to punch holes on the drill collar nipple 1, so that the integrity of the drill collar nipple 1 is ensured, and the sealing effect of the conversion nipple is improved.
In one embodiment, as shown in fig. 2 and 5, the step ring 412 is provided with the exhaust hole 10, and when the slip ring main body 411 is inserted into the drill collar nipple 1, an annular chamber is formed between the step ring 412 and the step groove 8, and with gradual insertion of the slip ring main body 411, air in the annular chamber is compressed, so that smooth insertion of the slip ring main body 411 and the step ring 412 is affected. However, by providing the exhaust hole 10, air between the step ring 412 and the step groove 8 can be exhausted through the exhaust hole 10, so that the slip ring main body 411 and the step ring 412 can smoothly complete plug-in fit with the drill collar nipple 1.
In one embodiment, as shown in fig. 1, 2 and 5, the connector assembly 42 includes a wire connector 421, and a conductive member 422 is disposed on the wire connector 421, and the male contact 44 and the female contact 45 are connected to the conductive member 422, respectively. The conductive member 422 includes a first pin 423, a female plug terminal 424, a male plug terminal 425, and a second pin 426, where the first pin 423 is fixed at one end of the wiring connector 421 near the female slip ring 43, the female plug terminal 424 is fixed at one end of the wiring connector 421 near the step ring 412, one end of the first pin 423 is connected to the female contact 45 through a wire, and the other end is connected to the female plug terminal 424 through a wire or a conductive rod.
In one embodiment, as shown in fig. 1, 2 and 5, the male pin 425 and the second pin 426 are respectively fixed on the step ring 412, one end of the second pin 426 is connected with the male pin 425 through a wire, the other end is connected with the male contact 44 through a wire, and the male pin 425 and the female pin 424 can be locked in a plugging manner.
In one embodiment, as shown in fig. 5 and 6, the end of the wire connector 421 is integrally connected with a supporting ring 11 capable of being inserted into the step ring 412, one end of the supporting ring 11 away from the wire connector 421 is integrally provided with a sealing inclined surface 12, and the inner wall of the step ring 412 is integrally provided with a receiving inclined surface 13 for the sealing inclined surface 12 to abut.
In one embodiment, as shown in FIG. 6, the slope of the receiving bevel 13 is different from the slope of the sealing bevel 12 so that a wire seal is formed between the receiving bevel 13 and the sealing bevel 12. For example, the slope of the receiving slope 13 is 60 °, and the slope of the sealing slope 12 is 45 °, at this time, the wire connector 421 only needs to be pressed with a small pressing force, so that the receiving slope 13 and the sealing slope 12 can abut against each other to form a wire seal, thereby improving the sealing stability between the wire connector 421 and the step ring 412.
In one embodiment, as shown in fig. 5 and 6, an assembly groove 14 is formed in the inner wall of the drill collar nipple 1, a positioning groove 15 is formed at one end of the wire joint 421, which is close to the supporting ring 11, a positioning strip 16 is arranged between the wire joint 421 and the step ring 412, one end of the positioning strip 16 is inserted into the assembly groove 14, and the other end of the positioning strip 16 can be inserted into the positioning groove 15.
When the supporting ring 11 is inserted into the step ring 412, the positioning strip 16 can be inserted into the positioning groove 15 to guide the wire connector 421 so as to realize the centralizing of the wire connector 421, thereby enabling the wire connector 421 to realize accurate plug-in matching with the drill collar nipple 1 and reducing the risk that the wire connector 421 scratches the inner wall of the drill collar nipple 1.
In one embodiment, as shown in fig. 5 and 6, the positioning strip 16 is in a long strip shape, an arc shape or a circular shape, and the positioning groove 15 is matched with the positioning strip 16, in this embodiment, the positioning strip 16 adopts a circular structure, that is, the positioning strip 16 is in a ring shape, so as to improve the guiding and righting effects.
In one embodiment, as shown in fig. 5 and 6, the positioning strip 16 is made of non-metal materials such as teflon, PEEK or PP, and when the positioning strip 16 is inserted into the positioning groove 15, the outer side wall of the positioning strip 16 is higher than the outer side wall of the routing connector 421, that is, the gap between the positioning strip 16 and the drill collar nipple 1 is smaller than the gap between the routing connector 421 and the drill collar nipple 1.
When this design makes the conversion nipple joint receive radial direction's effort, the location strip 16 can be extruded earlier, lightens the extrusion effect between the circumference lateral wall of walking line joint 421 and the inner wall of drill collar nipple joint 1 to reduce the risk that walking line joint 421 and drill collar nipple joint 1 appear "cold welding", and then guarantee that walking line joint 421 can dismantle.
In one embodiment, as shown in fig. 2 and 5, an annular groove 17 is formed in an inner wall of one end of the wiring connector 421 away from the supporting ring 11, and the annular groove 17 is used for plugging and matching with an external annular runner plug. The design makes the wiring joint 421 reserve the position for plugging and matching with the external annular flow passage plug, and facilitates the subsequent use of the conversion nipple.
In one embodiment, as shown in fig. 2 and 5, a first anode ring 18 is slidably inserted into the annular groove 17, the inner diameter of the first anode ring 18 is the same as the inner diameter of the wire connector 421, the end surface of the first anode ring 18 is flush with the end surface of the wire connector 421, and the limiting member 9 can compress the first anode ring 18 in the annular groove 17.
If the conversion nipple is not required to be connected with an external annular flow passage plug, the annular empty groove 17 can be plugged through the first anode ring 18, and as the inner diameter of the first anode ring 18 is the same as the inner diameter of the wiring joint 421, the risk that the medium impacts the inner wall of the annular empty groove 17 when flowing from the wiring joint 421 is reduced, meanwhile, the flow smoothness of the medium can be improved, and the service life and the service stability of the conversion nipple are improved.
In one embodiment, as shown in fig. 2 and 5, the routing connector 421 and the first anode ring 18 are made of metal materials, respectively, and the metal activity of the first anode ring 18 is stronger than the metal activity of the routing connector 421, and enables the first anode ring 18 to form a corrosion anode.
When the conversion nipple works, the first anode ring 18, the routing connector 421 and the seawater form a primary cell, and the first anode ring 18 is corroded (namely, the sacrificial anode and the protection cathode) due to the fact that the metal activity of the first anode ring 18 is stronger than that of the routing connector 421, so that the routing connector 421 is protected.
In one embodiment, as shown in fig. 5, 7 and 8, the outer side walls of the routing connector 421 and the supporting ring 11 are respectively provided with a mounting groove 21, each mounting groove 21 is internally provided with a second anode ring 19, the drill collar nipple 1, the step ring 412 and the second anode ring 19 are respectively made of metal materials, the metal activity of the second anode ring 19 is stronger than that of the drill collar nipple 1, the routing connector 421 and the step ring 412, and the second anode ring 19 can form a corrosion anode. This design is the same as the principle of the first anode ring 18, so that the second anode ring 19 is corroded (i.e., sacrificial anode, protective cathode) to protect the routing joint 421, the collar nipple 1, and the male slip ring 41.
In one embodiment, as shown in fig. 5, 7 and 8, the second anode ring 19 includes two semicircular elastic rings 191, and the two elastic rings 191 can be butted into a ring shape. Meanwhile, the side walls of the two elastic ring bodies 191 are respectively connected with locking strips 192 in an integrated mode, and the inner wall of the mounting groove 21 is provided with a locking groove 20 for the locking strips 192 to be clamped in, so that a user can conveniently and quickly disassemble and assemble the second anode ring 19.
Example 2
As shown in fig. 9, embodiment 2 of the present invention is different from embodiment 1 in that: the filling ring 22 is inserted in the ring hollow groove 17 in a sliding manner, the inner diameter of the filling ring 22 is the same as the inner diameter of the wiring joint 421, the end face of the filling ring 22 is flush with the end face of the wiring joint 421, and meanwhile, the limiting piece 9 can compress the filling ring 22 in the ring hollow groove 17. The material of the filling ring 22 can be the same as that of the wiring connector 421, or can be a nonmetallic material, and the purpose of plugging the ring empty groove 17 is mainly achieved.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (13)
1. The utility model provides a change-over nipple joint of logging while drilling instrument, includes drill collar nipple joint (1), the one end of drill collar nipple joint (1) is provided with public interface (2), and the other end is provided with female interface (3), be provided with in the drill collar nipple joint (1) and switch on subassembly (4), its characterized in that, switch on subassembly (4) including public sliding ring (41), joint assembly (42) and female sliding ring (43) that set gradually, be provided with public contact (44) on public sliding ring (41), be provided with female contact (45) on female sliding ring (43), public contact (44) with female contact (45) respectively with joint assembly (42) conductive connection;
the joint assembly (42) and the male slip ring (41) are respectively connected with the drill collar pup joint (1), the female slip ring (43) is connected with the joint assembly (42) through a fastening screw (5), and at least one group of adjusting gaskets (6) are arranged between the female slip ring (43) and the joint assembly (42) so as to realize the adjustment of the axial position of the female slip ring (43) along the drill collar pup joint (1);
the male slip ring (41) comprises a slip ring main body (411), a step ring (412) is integrally formed at one end of the slip ring main body (411) facing the joint assembly (42), the male contact (44) is arranged at one end of the slip ring main body (411) far away from the step ring (412), a step groove (8) matched with the step ring (412) is formed in the inner wall of the drill collar nipple (1), the joint assembly (42) and the drill collar nipple (1) are fixed through a limiting piece (9), and the step ring (412) is pressed in the step groove (8);
limiting part (9) are including clamp ring (91), locking ring (92) and the accepting ring (93) that set gradually, offer on locking ring (92) and put away breach (94), and make locking ring (92) are "C" shape structure, clamp ring (91) are used for supporting joint assembly (42) are kept away from the one end of sliding ring main part (411), accept ring (93) with joint assembly (42) are connected through stop screw (97), just clamp ring (91) orientation one end of locking ring (92) is provided with expansion inclined plane (95), locking ring (92) adopt elastic material to make, works as when stop screw (97) are screwed up, locking ring (92) can take place elastic expansion under the effect of expansion inclined plane (95), and support tightly the inner wall of collar nipple joint (1).
2. The conversion nipple of a logging while drilling instrument according to claim 1, characterized in that the adjustment spacer (6) is provided with a limiting hole (7), and the fastening screw (5) can pass through the limiting hole (7).
3. A conversion sub of a logging while drilling instrument according to claim 1, wherein an end of the locking ring (92) facing the compression ring (91) is provided with a guiding ramp (96), and the guiding ramp (96) is in engagement with the expansion ramp (95).
4. The conversion nipple of a logging while drilling instrument according to claim 1, wherein the step ring (412) is provided with an exhaust hole (10), and when the slip ring main body (411) is inserted into the drill collar nipple (1), air between the step ring (412) and the step groove (8) can be exhausted through the exhaust hole (10), so that the slip ring main body (411) and the step ring (412) can smoothly complete plug-in fit with the drill collar nipple (1).
5. The conversion sub of a logging while drilling instrument according to claim 1, wherein the joint assembly (42) comprises a wire joint (421), a conductive member (422) is arranged on the wire joint (421), and the male contact (44) and the female contact (45) are respectively connected with the conductive member (422);
the end integrated into one piece who walks line joint (421) is connected with can insert support ring (11) in step ring (412), support ring (11) keep away from the one end that walks line joint (421) is provided with sealed inclined plane (12), the inner wall of step ring (412) is provided with supplies accept inclined plane (13) of sealed inclined plane (12) butt.
6. A shift sub for a logging while drilling instrument according to claim 5, wherein the receiving bevel (13) is of a different slope than the sealing bevel (12) such that a line seal is formed between the receiving bevel (13) and the sealing bevel (12).
7. The conversion nipple of a logging while drilling instrument according to claim 5, wherein an assembly groove (14) is formed in an inner wall of the drill collar nipple (1), a positioning strip (16) is inserted in the assembly groove (14) in a sliding manner, a positioning groove (15) is formed in one end, close to the support ring (11), of the routing connector (421), the positioning strip (16) is long, arc-shaped or circular, the positioning groove (15) is matched with the positioning strip (16), and the positioning strip (16) is inserted.
8. The shift sub of a logging while drilling instrument of claim 7, wherein the locating strip (16) is made of a non-metallic material, and an outer sidewall of the locating strip (16) is higher than an outer sidewall of the routing sub (421) when the locating strip (16) is inserted into the locating slot (15).
9. The conversion nipple of a logging while drilling instrument according to claim 5, wherein an annular groove (17) is formed in an inner wall of one end of the wiring connector (421) away from the supporting ring (11), and the annular groove (17) is used for plugging and matching with an external annular flow passage plug.
10. The shift sub of a logging while drilling instrument according to claim 9, wherein a packing ring (22) is slidably inserted in the annular groove (17), the inner diameter of the packing ring (22) is the same as the inner diameter of the running sub (421), and the limiting member (9) is capable of compressing the packing ring (22) in the annular groove (17).
11. The shift sub of a logging while drilling instrument according to claim 9, wherein a first anode ring (18) is slidably inserted in the annular groove (17), the inner diameter of the first anode ring (18) is the same as the inner diameter of the running sub (421), and the limiting member (9) is capable of compressing the first anode ring (18) in the annular groove (17);
the wiring joint (421) and the first anode ring (18) are respectively made of metal materials, the metal activity of the first anode ring (18) is stronger than that of the wiring joint (421), and the first anode ring (18) can form a corrosion anode.
12. The conversion nipple of a logging while drilling instrument according to claim 11, characterized in that the outer side walls of the routing connector (421) and the supporting ring (11) are respectively provided with a mounting groove (21), each mounting groove (21) is internally provided with a second anode ring (19), the drill collar nipple (1), the step ring (412) and the second anode ring (19) are respectively made of metal materials, and the metal activity of the second anode ring (19) is stronger than that of the drill collar nipple (1), the routing connector (421) and the step ring (412), and the second anode ring (19) can form a corrosion anode.
13. The conversion nipple of a logging while drilling instrument according to claim 12, wherein the second anode ring (19) comprises two semicircular elastic rings (191), the two elastic rings (191) can be butted into a ring shape, the side walls of the two elastic rings (191) are respectively connected with locking strips (192) in an integrated manner, and the inner wall of the mounting groove (21) is provided with a locking groove (20) for the locking strips (192) to be clamped in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311204457.XA CN116950577B (en) | 2023-09-19 | 2023-09-19 | Conversion nipple of logging while drilling instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311204457.XA CN116950577B (en) | 2023-09-19 | 2023-09-19 | Conversion nipple of logging while drilling instrument |
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| CN116950577A CN116950577A (en) | 2023-10-27 |
| CN116950577B true CN116950577B (en) | 2023-11-21 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN116950577A (en) | 2023-10-27 |
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