CN108119127B - Logging-while-drilling instrument connector - Google Patents
Logging-while-drilling instrument connector Download PDFInfo
- Publication number
- CN108119127B CN108119127B CN201711288463.2A CN201711288463A CN108119127B CN 108119127 B CN108119127 B CN 108119127B CN 201711288463 A CN201711288463 A CN 201711288463A CN 108119127 B CN108119127 B CN 108119127B
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- Prior art keywords
- slip ring
- connector
- base
- centralizer
- adjusting
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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
- E21B47/00—Survey of boreholes or wells
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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
- E21B17/02—Couplings; joints
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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
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
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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
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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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
- E21B17/16—Drill collars
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
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- 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
- H01R13/46—Bases; Cases
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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- 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
Abstract
The invention discloses a logging-while-drilling instrument connector, which belongs to the technical field of logging-while-drilling and comprises an upper connector and a lower connector; one end of the first centralizer is hermetically connected with the upper pressure-bearing protective cap, the other end of the first centralizer is hermetically connected with the upper adjusting base, the female slip ring seat is installed at the lower end of the upper adjusting base, and the female slip ring is installed on the female slip ring seat; one end of the second centralizer is hermetically connected with the lower pressure-bearing protective cap, the other end of the second centralizer is hermetically connected with the lower adjusting base, the male slip ring seat is installed at the upper end of the lower adjusting base, and the male slip ring is installed on the male slip ring seat; the male slip ring is connected with the female slip ring. The centering connection is realized through the first centering device and the second centering device, the direct-insertion type centering connection mode is realized through the male sliding ring and the female sliding ring, the mechanical and electrical connection between the drill collar pups of the logging-while-drilling instrument is finally realized, and the device is simple in structure, reliable in connection and easy to maintain.
Description
Technical Field
The invention relates to the technical field of logging while drilling, in particular to a logging while drilling instrument connector.
Background
In the exploration and development process of oil and gas fields, logging must be carried out after drilling so as to know the oil and gas containing condition of the stratum, and the logging-while-drilling instrument is a commonly used logging instrument, and generally comprises a plurality of instrument pups, wherein each instrument pup is connected by a drill collar thread. Each instrument short section is provided with a bus interface for completing communication and power supply between the measuring short sections. During the installation of the logging instrument string, due to the rotation of the drill collar threads, the drill collars rotate circumferentially and move linearly in the axial direction relatively. In order to ensure the reliability of bus interface connection in the process of drill collar threaded connection, a connector needs to be installed at the end part of the pup joint. In the process of underground work of the logging-while-drilling instrument, high temperature and high pressure and larger vibration impact need to be borne, and the reliability of connection and sealing of the connector directly relates to the service performance of the instrument. The connector is an important common component of the logging-while-drilling instrument. Each measuring short joint is used and is very important to the reliability and stability of the structure and communication of the whole logging instrument string.
The connectors currently available mainly include two types: both the sidewall connector and the center connector. The sidewall connector is represented by M30 of shell as a typical example, and the electrical connection is realized by a lead at the end face of the drill collar connecting buckle, which relates to a special connecting buckle. The center connector is represented by a telescopic connector of APS company, which is long in length, complicated in structure, and inconvenient to maintain.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the logging-while-drilling instrument connector which is simple in structure, reliable in connection and easy to maintain.
The invention is realized by the following technical scheme:
a logging-while-drilling tool connector comprises an upper connector and a lower connector;
the upper connector comprises an upper pressure-bearing protective cap, a first centralizer, an upper adjusting base, a female slip ring seat and a female slip ring, one end of the first centralizer is hermetically connected with the upper pressure-bearing protective cap, the other end of the first centralizer is hermetically connected with the upper adjusting base, the female slip ring seat is installed at the lower end of the upper adjusting base, and the female slip ring is installed on the female slip ring seat;
the lower connector comprises a lower pressure-bearing protective cap, a second centralizer, a lower adjusting base, a male slip ring seat and a male slip ring, one end of the second centralizer is hermetically connected with the lower pressure-bearing protective cap, the other end of the second centralizer is hermetically connected with the lower adjusting base, the male slip ring seat is installed at the upper end of the lower adjusting base, and the male slip ring is installed on the male slip ring seat;
the male slip ring is connected with the female slip ring.
Optionally, the upper connector further comprises an upper drill collar sub, the first centralizer, the upper adjusting base, the female slip ring seat and the female slip ring are located inside the upper drill collar sub, and the first centralizer is hermetically connected with the upper drill collar sub;
the lower connector also comprises a lower drill collar pup joint, a second centralizer, a lower adjusting base, a male slip ring seat and a male slip ring are positioned inside the lower drill collar pup joint, and the second centralizer is hermetically connected with the lower drill collar pup joint;
and the upper drill collar pup joint is connected with the lower drill collar pup joint.
Optionally, a tapered connector is arranged at the connecting end of the upper drill collar nipple and the lower drill collar nipple, a tapered hole is arranged at the connecting end of the lower drill collar nipple and the upper drill collar nipple, and the tapered hole is connected with the tapered connector.
Optionally, the upper connector further comprises an upper aviation connector base, the upper aviation connector base is mounted at one end, close to the first centralizer, of the upper adjusting base, and a first wire accommodating hole is formed in one end, close to the upper aviation connector base, of the first centralizer;
optionally, the lower connector further comprises a lower aviation connector base, the lower aviation connector base is mounted at one end, close to the second centralizer, of the lower section base, and a second wire accommodating hole is formed in one end, close to the lower aviation connector base, of the second centralizer.
Optionally, the upper connector further comprises a base, a disc spring assembly, a sliding seat and an upper pressure-bearing cylinder;
the dish spring unit mount is inside the base, and the one end of base and the inside ladder face contact of last regulation base, the other end and the slide of base are connected, and the base is located the inside of adjusting the base, and the dish spring unit setting is inside the base, and dish spring unit and female sliding ring seat contact are connected, and upper portion pressure-bearing barrel casing is in the outside of last regulation base and slide, with last regulation base and slide sealing connection.
Optionally, the upper connector further includes a shock pad and a first locking ring, and the shock pad and the first locking ring are disposed between the female slip ring and the female slip ring seat and used for connecting the female slip ring and the female slip ring seat.
Optionally, the lower connector further comprises a lower pressure bearing cylinder, an adjusting screw rod and an adjusting locking nut;
one end of the adjusting screw rod is connected with the male sliding ring seat, the other end of the adjusting screw rod is connected with the lower adjusting base, an adjusting locking nut is arranged on the adjusting screw rod, the lower pressure bearing cylinder is sleeved outside the adjusting screw rod and the lower adjusting base and is hermetically connected with the adjusting screw rod and the lower adjusting base, and the lower pressure bearing cylinder is connected with the adjusting screw rod through a set screw.
Optionally, the adjusting screw and the male sliding ring seat are connected through a second locking ring.
Optionally, both ends of the first centralizer and the second centralizer are provided with sealing plugs.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a logging-while-drilling instrument connector, which comprises an upper connector and a lower connector; the upper connector comprises an upper pressure-bearing protective cap, a first centralizer, an upper adjusting base, a female slip ring seat and a female slip ring, one end of the first centralizer is hermetically connected with the upper pressure-bearing protective cap, the other end of the first centralizer is hermetically connected with the upper adjusting base, the female slip ring seat is installed at the lower end of the upper adjusting base, and the female slip ring is installed on the female slip ring seat; the lower connector comprises a lower pressure-bearing protective cap, a second centralizer, a lower adjusting base, a male slip ring seat and a male slip ring, one end of the second centralizer is hermetically connected with the lower pressure-bearing protective cap, the other end of the second centralizer is hermetically connected with the lower adjusting base, the male slip ring seat is installed at the upper end of the lower adjusting base, and the male slip ring is installed on the male slip ring seat; the male slip ring is connected with the female slip ring. The centering connection is realized through the first centering device and the second centering device, the direct-insertion type centering connection mode is realized through the male sliding ring and the female sliding ring, the mechanical and electrical connection between the drill collar pups of the logging-while-drilling instrument is finally realized, and the device is simple in structure, reliable in connection and easy to maintain.
Furthermore, the deformation of the disc spring assembly enables the connection between the male slip ring and the female slip ring to be a floating structure, the disc spring assembly is used for buffering, the male slip ring or the female slip ring is prevented from being damaged due to overlarge stress when the disc spring assembly is plugged, and the connection reliability and the service life are improved.
Furthermore, the adjusting screw rod and the adjusting locking nut are matched for use, so that after the drill collar nipple is repaired, the distance between the connector and the end face of the drill collar can be adjusted, and the applicability of the instrument is improved.
Furthermore, the sealing plugs are arranged at the two ends of the first centralizer and the second centralizer, so that the sealing performance of instrument connection is guaranteed.
Drawings
FIG. 1 is a schematic diagram illustrating an overall structure of a LWD connector according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an upper connector according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a lower connector according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at G;
FIG. 5 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 6 is a cross-sectional view taken at B-B of FIG. 1;
FIG. 7 is a cross-sectional view taken at C-C of FIG. 1;
FIG. 8 is a cross-sectional view taken at D-D of FIG. 1;
fig. 9 is a cross-sectional view taken at E-E of fig. 1.
In the figure: 1-pressing a protective cap; 2-O-rings; 3-O-shaped rings; 4-O-shaped rings; 5-a threaded connection pair; 6-a second wire holding hole; 7-lower drill collar pup joint; 8-upper drill collar sub; 9-a first wire accommodating hole; 10-a threaded connection pair; 11-O-rings; 12-O-ring; 14-O-rings; 15-a first centralizer; 16-sailing over the air plug socket; 17-lower adjustment base; 18-lower aircraft plug seat; 19-a threaded connection pair; 20-a sealing plug; 21-a third locking ring; 22-positioning the jackscrew; 23-a guard ring; 24-lower pressure-bearing protective cap; 25-lower pressure bearing cylinder; 26-a set screw; 27-fastening a jackscrew; 28-O-ring; 29-O-ring; 30-male slip ring seat; 31-male slip ring; a 32-O ring; 33-female slip ring; 34-O-ring; 35-upper pressure-bearing cylinder; 36-O-ring; 37-a disc spring assembly; 38-a base; 39-a threaded connection pair; 40-a slide seat; 41-a vibration damping pad; 42-a first locking ring; 44-O-rings; 45-a second locking ring; 46-O-ring; 47-O-ring; 48-adjusting the locking nut; 49-screw thread connection pair; 50-adjusting a screw rod; 51-a female slip ring seat; 52-upper adjustment base.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
Fig. 1 is a schematic diagram illustrating an overall structure of a logging-while-drilling tool connector according to an embodiment of the present invention, and as shown in fig. 1, the logging-while-drilling tool connector includes an upper connector and a lower connector.
As shown in fig. 2 and 4, the upper connector comprises an upper pressure-bearing protective cap 1, a first centralizer 15, an upper adjusting base 52, a female slip ring seat 51, a female slip ring 33, an upper drill collar sub 8, an upper aviation plug seat 16, a base 38, a disc spring assembly 37, a sliding seat 40, an upper pressure-bearing cylinder 35, a shock-absorbing pad 41 and a first locking ring 42;
one end and the last pressure-bearing helmet 1 sealing connection of first centralizer 15, the other end and last regulation base 52 sealing connection, the last navigation plug socket 16 is installed and is close to the one end of first centralizer 15 at last regulation base 52, and the one end that first centralizer 15 is close to last navigation plug socket 16 is provided with first appearance line hole 9. One end of the base 38 is contacted with the stepped surface inside the upper adjusting base 52, the other end of the base 38 is connected with the sliding base 40, the base 38 is positioned inside the upper adjusting base 52, the disc spring assembly 37 is arranged inside the base 38, the disc spring assembly 37 is contacted and connected with the female sliding ring seat 51, and the upper pressure bearing cylinder 35 is sleeved outside the upper adjusting base 52 and the sliding base 40 and is hermetically connected with the upper adjusting base 52 and the sliding base 40. The upper end of the female slip ring seat 51 is in contact with the disc spring assembly 37 and is positioned inside the sliding seat 40 and is in sealing connection with the sliding seat 40, and the female slip ring 33 is connected with the female slip ring seat 51 through the shock absorption pad 41 and the first locking ring 42. The first centralizer 15, the upper adjusting base 52 and the upper pressure bearing cylinder 35 are located inside the upper drill collar sub 8, and the first centralizer 15 is connected with the upper drill collar sub 8 in a sealing mode. The deformation of the disc spring assembly 37 designs the connector into a floating structure, so that the direct stress of the connector is avoided, and the connection reliability of the connector is improved. As shown in fig. 9, the upper pressure-bearing cylinder 35 and the slide 40 are connected by a fastening screw 27, and the upper pressure-bearing cylinder 35 and the female slip ring holder 51 are connected by a set screw 26, as shown in fig. 8.
Wherein, one end of the first centralizer 15 is hermetically connected with the upper pressure-bearing protective cap 1 through O- shaped rings 11 and 12, the upper pressure-bearing cylinder 35 is hermetically connected with the upper adjusting base 52 through an O-shaped ring 36, the sliding seat 40 is hermetically connected with the upper pressure-bearing cylinder 35 through an O-shaped ring 34, the female sliding ring seat 51 is hermetically connected with the upper pressure-bearing cylinder 35 through an O-shaped ring 32, and an O-shaped ring 44 is arranged between the female sliding ring 33 and the female sliding ring seat 51.
As shown in fig. 3 and 4, the lower connector comprises a lower pressure-bearing protective cap 24, a second centralizer, a lower adjusting base 17, a male slip ring seat 30, a male slip ring 31, a lower drill collar sub 7, a lower pressure-bearing cylinder 25, an adjusting screw 50, an adjusting lock nut 48 and a second locking ring 45;
one end of the second centralizer is hermetically connected with the lower pressure-bearing protective cap 24, the other end of the second centralizer is hermetically connected with the lower adjusting base 17, the lower aviation plug seat 18 is installed at one end, close to the second centralizer, of the lower adjusting base 38, and a second wire accommodating hole 6 is formed in one end, close to the lower aviation plug seat 18, of the second centralizer. One end of an adjusting screw rod 50 is connected with the male sliding ring seat 30, the other end of the adjusting screw rod 50 is connected with the lower adjusting base 17, an adjusting locking nut 48 is arranged on the adjusting screw rod 50, the lower pressure bearing cylinder 25 is sleeved outside the adjusting screw rod 50 and the lower adjusting base 17 and is connected with the adjusting screw rod 50 and the lower adjusting base 17 in a sealing mode, and the lower pressure bearing cylinder 25 is connected with the adjusting screw rod 50 through a set screw. As shown in fig. 7, the male slip ring holder 30 is hermetically connected with the lower pressure-bearing cylinder 25, the male slip ring 31 is mounted on the male slip ring holder 30, and as shown in fig. 6, the protection ring 23 is provided at the adjusting lock nut 48. When the adjustable drill collar is used, the length of the spiral fit between the adjusting base 17 and the adjusting screw rod 50 is adjusted, so that the distance between the connector and the end face of the drill collar can be adjusted after the drill collar nipple is repaired. The adjusting screw 50 and the male sliding ring holder 30 are connected by a second locking ring 45. The male slip ring 31 and the female slip ring 33 are matched for use, so that mechanical and electrical connection between the drill collar pups of the drilling and logging instrument is realized.
An O-shaped ring is arranged at the joint of the second centralizer and the lower pressure-bearing protective cap 24, O-shaped rings 2, 3 and 4 are arranged at the joint of the lower drill collar pup joint 7 and the second centralizer, an O-shaped ring 28 is arranged between the lower adjusting base 17 and the adjusting screw rod 50, an O-shaped ring 29 is arranged between the lower pressure-bearing cylinder 25 and the adjusting screw rod 50, an O-shaped ring 47 is arranged between the adjusting screw rod 50 and the male sliding ring seat 30, and an O-shaped ring 46 is arranged between the male sliding ring 31 and the male sliding ring seat 30. The lower adjusting base 17 is connected with the upper aviation plug base 16 through a threaded connection pair 5, the lower adjusting base 17 is connected with the second centralizer through a threaded connection pair 19, the upper adjusting base 52 is connected with the first centralizer 15 through a threaded connection pair 10, and the adjusting screw rod 50 is connected with the lower adjusting base 17 through a threaded connection pair 49.
Preferably, sealing plugs 20 are arranged at two ends of the first centralizer 15 and the second centralizer, and the sealing plugs 20 are tightly and hermetically connected with the first centralizer 15 and the second centralizer respectively through a third locking ring 21.
The connecting end of the upper drill collar pup joint 8 and the lower drill collar pup joint 7 is provided with a conical connector, the connecting end of the lower drill collar pup joint 7 and the upper drill collar pup joint 8 is provided with a conical hole, and the conical hole is connected with the conical connector.
The installation process of the logging-while-drilling tool connector provided by the invention is as follows:
installation of a lower connecting short piece: firstly, the male slip ring 31 is installed on the male slip ring seat 30, then the O-shaped ring 44 is installed, and then the second locking spiral ring is installed in the male slip ring seat 30; an O-shaped ring 47 is arranged on the adjusting screw 50 and is arranged in the male sliding ring seat 30, and an O-shaped ring 28 and an O-shaped ring 29 are arranged on the lower adjusting base 17. The male slip ring base 30 and the parts connected thereto are mounted on the lower adjustment base 17 as a whole, the lower pressure-bearing cylinder 25 is mounted on the lower adjustment base 17, and the lower pressure-bearing cylinder 25 is fixed to the lower adjustment base 17 by a jackscrew in the axial direction. Then the sealing plug 20 is installed in the centralizer, and the sealing plug 20 is locked by the third locking ring 21, so that the sealing plug 20 is fastened. The lower adjustment base 17 etc. is then mounted on the second centralizer and the O- rings 2, 3, 4 are then mounted on the second centralizer. This is then mounted as a unit on the lower collar sub 7, as shown in figure 5, and secured by a set top thread 22.
And (5) installing an upper connecting short section. The female slip ring 33 is first installed in the female slip ring seat 51 and fastened with the locking ring by the damping pad, the disc spring assembly 37 is first installed on the base 38, the female slip ring seat 51 is then installed on the base 38, and the base 38 and the like are then installed on the upper adjustment base 52. The installation of the rest part refers to the installation mode of the lower connecting short section.
And respectively installing and fixing the upper connecting pup joint and the lower connecting pup joint on the upper drill collar pup joint 8 and the lower drill collar pup joint 7. Adjusting the drill collar pup joint to be connected to a well platform, and slowly screwing the upper drill collar pup joint and the lower drill collar pup joint to be connected by using chain tongs; and then the hydraulic tongs are used for increasing the specified buckling torque.
The embodiments of the present invention are merely illustrative of the spirit of the present invention, and those skilled in the art can modify the described embodiments or substitute them with similar ones without departing from the spirit of the present invention.
Claims (9)
1. The connector of the logging-while-drilling instrument is characterized by comprising an upper connector and a lower connector;
the upper connector comprises an upper pressure-bearing protective cap (1), a first centralizer (15), an upper adjusting base (52), a female slip ring seat (51) and a female slip ring (33), one end of the first centralizer (15) is hermetically connected with the upper pressure-bearing protective cap (1), the other end of the first centralizer is hermetically connected with the upper adjusting base (52), the female slip ring seat (51) is installed at the lower end of the upper adjusting base (52), and the female slip ring (33) is installed on the female slip ring seat (51);
the lower connector comprises a lower pressure-bearing protective cap (24), a second centralizer, a lower adjusting base (17), a male slip ring seat (30) and a male slip ring (31), one end of the second centralizer is hermetically connected with the lower pressure-bearing protective cap (24), the other end of the second centralizer is hermetically connected with the lower adjusting base (17), the male slip ring seat (30) is installed at the upper end of the lower adjusting base (17), and the male slip ring (31) is installed on the male slip ring seat (30);
the male slip ring (31) is connected with the female slip ring (33);
the upper connector also comprises a base (38), a disc spring assembly (37), a sliding seat (40) and an upper pressure bearing cylinder (35);
dish spring subassembly (37) are installed inside base (38), the one end of base (38) and the inside ladder face contact of last regulation base (52), the other end and slide (40) of base (38) are connected, base (38) are located the inside of adjusting base (52), dish spring subassembly (37) set up inside base (38), dish spring subassembly (37) and female slip ring seat (51) contact are connected, upper portion pressure-bearing cylinder (35) cover is in the outside of adjusting base (52) and slide (40) on, with last regulation base (52) and slide (40) sealing connection.
2. The logging-while-drilling tool connector of claim 1, wherein the upper connector further comprises an upper drill collar sub (8), the first centralizer (15), the upper adjusting base (52), the female slip ring seat (51) and the female slip ring (33) are positioned inside the upper drill collar sub (8), and the first centralizer (15) and the upper drill collar sub (8) are in sealing connection;
the lower connector also comprises a lower drill collar nipple (7), a second centralizer, a lower adjusting base (17), a male slip ring seat (30) and a male slip ring (31) are positioned inside the lower drill collar nipple (7), and the second centralizer is hermetically connected with the lower drill collar nipple (7);
the upper drill collar pup joint (8) is connected with the lower drill collar pup joint (7).
3. The logging-while-drilling instrument connector as recited in claim 2, characterized in that the connection end of the upper drill collar sub (8) and the lower drill collar sub (7) is provided with a tapered connector, the connection end of the lower drill collar sub (7) and the upper drill collar sub (8) is provided with a tapered hole, and the tapered hole is connected with the tapered connector.
4. The logging-while-drilling tool connector of claim 1, wherein the upper connector further comprises an upper aviation connector base (16), the upper aviation connector base (16) is mounted at one end of the upper adjusting base (52) close to the first centralizer (15), and a first wire accommodating hole (9) is formed at one end of the first centralizer (15) close to the upper aviation connector base (16).
5. The logging-while-drilling tool connector of claim 1, wherein the lower connector further comprises a lower aviation connector (18), the lower aviation connector (18) is mounted at one end of the lower section base (38) close to the second centralizer, and a second wire accommodating hole (6) is formed at one end of the second centralizer close to the lower aviation connector (18).
6. The logging-while-drilling tool connector of claim 1, wherein the upper connector further comprises a shock absorbing pad (41) and a first locking ring (42), the shock absorbing pad (41) and the first locking ring (42) being disposed between the female slip ring (33) and the female slip ring seat (51) for connecting the female slip ring (33) and the female slip ring seat (51).
7. The logging-while-drilling tool connector of claim 1, wherein the lower connector further comprises a lower pressure-bearing barrel (25), an adjusting screw (50), and an adjusting lock nut (48);
one end of the adjusting screw rod (50) is connected with the male slip ring seat (30), the other end of the adjusting screw rod is connected with the lower adjusting base (17), an adjusting locking nut (48) is arranged on the adjusting screw rod (50), the lower pressure bearing cylinder (25) is sleeved outside the adjusting screw rod (50) and the lower adjusting base (17) and is connected with the adjusting screw rod (50) and the lower adjusting base (17) in a sealing mode, and the lower pressure bearing cylinder (25) is connected with the adjusting screw rod (50) through a set screw.
8. The logging-while-drilling tool connector of claim 7, wherein the adjusting screw (50) and the male slip ring seat (30) are connected by a second locking ring (45).
9. The logging-while-drilling tool connector as recited in claim 1, characterized in that both ends of the first centralizer (15) and the second centralizer are provided with sealing plugs (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288463.2A CN108119127B (en) | 2017-12-07 | 2017-12-07 | Logging-while-drilling instrument connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288463.2A CN108119127B (en) | 2017-12-07 | 2017-12-07 | Logging-while-drilling instrument connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108119127A CN108119127A (en) | 2018-06-05 |
| CN108119127B true CN108119127B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711288463.2A Active CN108119127B (en) | 2017-12-07 | 2017-12-07 | Logging-while-drilling instrument connector |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882085B (en) * | 2019-02-19 | 2020-11-06 | 中国海洋石油集团有限公司 | Connection structure of drill collar of while-drilling instrument and male and female drill collar pups |
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| CN111794692B (en) * | 2020-08-04 | 2022-02-01 | 西南石油大学 | Quick connecting joint of underground measurement while drilling instrument |
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| CN108119127A (en) | 2018-06-05 |
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