CN215568737U

CN215568737U - High-flexibility quick connector device for oil well logging

Info

Publication number: CN215568737U
Application number: CN202121129682.8U
Authority: CN
Inventors: 冯军亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-01-18
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a high-flexibility quick connector device for oil well logging, which comprises a quick connector body, wherein the quick connector body comprises a gun head female buckle, the bottom of the gun head female buckle is fixedly connected with a baffle, the bottom of the baffle is fixedly connected with a casing head female buckle, the inner side of the casing head female buckle is of a hexagonal structure, a short connector is arranged in the casing head female buckle, the bottom of the short connector extends to the lower part of the casing head female buckle, T-shaped fastening bolts are arranged on two sides of the short connector, and the two T-shaped fastening bolts are symmetrically arranged. The sealing device is reasonable in design, can quickly realize sealing connection between the casing valve and the test-well gun head, and the spring is arranged, so that the bottom of the sealing ring can be always in close contact with the top of the short joint, the connection sealing performance of the sealing ring is improved, the potential safety hazard is reduced, the short joint is matched with a detachable mode of the T-shaped fastening bolt, sealing installation can be realized when the casing valve is provided with the short joint or not, and the use flexibility is improved.

Description

High-flexibility quick connector device for oil well logging

Technical Field

The utility model relates to the technical field of oil well logging quick connector equipment, in particular to a quick connector device with high flexibility for oil well logging.

Background

The oil field oil extraction production area is located on a loess plateau, the terrain is complex, gullies are vertical and horizontal, well sites are dispersed, the number of well sites is small, a low-pressure logging system is implemented in upper and lower ten-day periods in an operation area, low-pressure logging is carried out on oil wells in the whole jurisdiction area twice a month, and during logging, a connection joint is needed to be used for realizing the connection between a well testing gun head and a casing opening;

the existing oil well logging connector has the advantages that when logging is carried out, a well testing gun head cannot be well sealed with a casing opening, the potential safety hazard is large, the accuracy of logging data is affected, the use flexibility is low, and the use requirement cannot be met, so that the quick connector device with high flexibility for oil well logging is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-flexibility quick joint device for oil well logging.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a high oil well logging uses quick-operation joint device of flexibility, includes the quick-operation joint body, the quick-operation joint body includes rifle head box, the bottom fixedly connected with baffle of rifle head box, the bottom fixedly connected with casing head box of baffle, the inboard of casing head box is established to the hexagon structure, is equipped with the short connector in the casing head box, and the bottom of short connector extends to the below of casing head box, and the both sides of short connector all are equipped with T shape fastening bolt, and two T shape fastening bolt symmetries set up, and one side that two T shape fastening bolt kept away from each other all extends to outside the casing head box, and casing head box thread bush is established on two T shape fastening bolt, and first through-hole has been seted up at the top of baffle, and first through-hole is linked together with the inside of rifle head box and casing head box, is equipped with sealed hold-down mechanism on the baffle.

Preferably, sealed hold-down mechanism is including seting up the ring channel on first through-hole lateral wall, establish to the opening bottom of ring channel, the sealed slip cover in the ring channel is equipped with the ring, the bottom of ring extends to the below of baffle and bonding fixation has the sealing washer, two locating pieces of fixedly connected with on the top inner wall of ring channel, the rectangular channel has all been seted up to the top both sides of ring, the bottom of locating piece extends to in the rectangular channel that corresponds, fixedly connected with spring between the bottom inner wall of rectangular channel and the bottom of the locating piece that corresponds, fixedly connected with expansion hose between the top of ring and the top inner wall of ring channel.

Preferably, threaded holes are formed in the inner walls of the two sides of the casing head female buckle and are in threaded connection with the corresponding T-shaped fastening bolts.

Preferably, the inner side of the gun head female buckle is provided with an internal thread, and the outer side of the short joint is provided with an external thread.

Preferably, a sealing rubber sheet is fixedly bonded to the outer side of the circular ring, and the outer side of the sealing rubber sheet is in movable contact with the inner wall of the annular groove.

Preferably, the sliding blocks are fixedly connected to the inner wall of one side, away from each other, of each rectangular groove, the sliding grooves are formed in one sides, away from each other, of the two positioning blocks, and the sliding blocks are connected with the corresponding sliding grooves in a sliding mode.

Preferably, the first through hole has a diameter smaller than an inner diameter of the bellows.

Compared with the prior art, the utility model has the beneficial effects that:

when the connection operation is carried out through the matching of the gun head female buckle, the baffle plate, the casing head female buckle, the short joint, the T-shaped fastening bolt, the first through hole, the annular groove, the positioning block, the ring, the telescopic hose, the rectangular groove, the sealing ring, the spring and the sliding groove with the sliding block, the screw thread of the test-well gun head is sleeved in the gun head female buckle, the short section screw thread on the casing valve is sleeved on the short joint, then when the short joint is moved upwards to be contacted with the bottom of the sealing ring, the short joint continues to move upwards and presses the sealing ring to move upwards, the sealing ring drives the ring to slide upwards on the two positioning blocks and compress the spring, meanwhile, the ring upwards compresses the telescopic hose, when the sealing property between the sealing ring and the short joint is adjusted, the two T-shaped fastening bolts are rotated forwards, the T-shaped fastening bolts are rotated and moved to be in close contact with the outer side of the short joint, so that the short joint is fixed, thereby realizing the sealing connection between the pipe sleeve valve and the well testing gun head;

when there is not the short section in casing valve one side, but the separation of reverse rotation T shape fastening bolt and short connector, take out the short connector from the casing head box immediately, can directly establish the outer hexagon nut cover on the casing valve in the hexagon structure in the casing head box, upwards promote the casing valve and extrude the sealing washer rebound, the sealing washer drives the ring and upwards slides on two locating pieces and compresses the spring, when adjusting the leakproofness between sealing washer and the casing valve, it realizes the fixed to the casing valve to rotate two T shape fastening bolts, short connector cooperation T shape fastening bolt detachable mode, can all realize seal installation when the casing valve has the nipple joint and does not have the nipple joint.

The sealing device is reasonable in design, can quickly realize sealing connection between the casing valve and the test-well gun head, and the spring is arranged, so that the bottom of the sealing ring can be always in close contact with the top of the short joint, the connection sealing performance of the sealing ring is improved, the potential safety hazard is reduced, the short joint is matched with a detachable mode of the T-shaped fastening bolt, sealing installation can be realized when the casing valve is provided with the short joint or not, and the use flexibility is improved.

Drawings

FIG. 1 is a schematic structural diagram of a high-flexibility quick connector device for oil well logging according to the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a schematic top view of a casing head box of the quick coupling device for oil well logging with high flexibility according to the present invention.

In the figure: the gun head comprises a gun head female buckle 1, a baffle 2, a sleeve head female buckle 3, a short joint 4, a T-shaped fastening bolt 5, a first through hole 6, an annular groove 7, a positioning block 8, a ring 9, a telescopic hose 10, a rectangular groove 11, a sealing ring 12, a spring 13, a sliding groove 14 and a sliding block 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a high-flexibility quick coupling device for oil well logging comprises a quick coupling body, the quick coupling body comprises a gun head box 1, the bottom of the gun head box 1 is fixedly connected with a baffle 2, the bottom of the baffle 2 is fixedly connected with a casing head box 3, the inner side of the casing head box 3 is designed to be of a hexagonal structure, a short joint 4 is arranged in the casing head box 3, the bottom of the short joint 4 extends to the lower part of the casing head box 3, two sides of the short joint 4 are respectively provided with a T-shaped fastening bolt 5, the two T-shaped fastening bolts 5 are symmetrically arranged, one sides, far away from each other, of the two T-shaped fastening bolts 5 extend to the outside of the casing head box 3, the casing head box 3 is sleeved on the two T-shaped fastening bolts 5 in a threaded manner, the top of the baffle 2 is provided with a first through hole 6, the first through hole 6 is communicated with the interior of the gun head box 1 and the interior of the casing head box 3, a sealing and pressing mechanism is arranged on the baffle 2;

the sealing and pressing mechanism comprises an annular groove 7 arranged on the side wall of the first through hole 6, the bottom of the annular groove 7 is provided with an opening, a circular ring 9 is hermetically and slidably sleeved in the annular groove 7, the bottom of the circular ring 9 extends to the lower part of the baffle plate 2 and is fixedly bonded with a sealing ring 12, two positioning blocks 8 are fixedly connected to the inner wall of the top part of the annular groove 7, rectangular grooves 11 are respectively arranged on two sides of the top part of the circular ring 9, the bottoms of the positioning blocks 8 extend into the corresponding rectangular grooves 11, a spring 13 is fixedly connected between the inner wall of the bottom part of the rectangular groove 11 and the bottom part of the corresponding positioning block 8, and a flexible hose 10 is fixedly connected between the top part of the circular ring 9 and the inner wall of the top part of the annular groove 7. Improve its connection leakproofness, reduce the potential safety hazard, and short joint 4 cooperation T shape fastening bolt 5 detachable mode, all can realize sealed installation when the casing valve has the nipple joint and does not have the nipple joint, improve and use the flexibility.

In the utility model, threaded holes are respectively formed in the inner walls of two sides of a casing head female buckle 3 and are in threaded connection with corresponding T-shaped fastening bolts 5, inner threads are arranged on the inner side of the casing head female buckle 1, outer threads are arranged on the outer side of a short joint 4, a sealing rubber sheet is fixedly bonded on the outer side of a circular ring 9, the outer side of the sealing rubber sheet is in movable contact with the inner wall of a circular groove 7, sliding blocks 15 are fixedly connected to the inner wall of one side, away from each other, of two rectangular grooves 11, sliding grooves 14 are respectively formed in one side, away from each other, of two positioning blocks 8, the sliding blocks 15 are in sliding connection with the corresponding sliding grooves 14, the diameter of a first through hole 6 is smaller than the inner diameter of a telescopic hose 10, the design is reasonable, the sealing connection between a casing valve and a test well gun head can be rapidly realized, and the arrangement of a spring 13 ensures that the bottom of a sealing ring 12 can be always in tight contact with the top of the short joint 4, so as to improve the connection tightness, reduce the potential safety hazard, and the short joint 4 cooperation T shape fastening bolt 5 detachable mode can all realize sealed installation when the casing valve has the nipple joint and does not have the nipple joint, improves and uses the flexibility.

The working principle is as follows: when in use, during connection operation, the screw thread of the test well gun head is sleeved in the gun head female buckle 1, the short section screw thread on the sleeve valve is sleeved on the short joint 4, then the short joint 4 is moved upwards, when the short joint 4 is moved upwards to be contacted with the bottom of the sealing ring 12, the short joint 4 continues to move upwards and extrudes the sealing ring 12 upwards, the extruding force drives the sealing ring 12 to move upwards, the sealing ring 12 drives the circular ring 9 to move upwards, the circular ring 9 slides upwards on the two positioning blocks 8 and compresses the spring 13, meanwhile, the circular ring 9 drives the two sliding blocks 15 to respectively slide in the corresponding sliding grooves 14, the circular ring 9 gradually extrudes the flexible pipe 10 while moving upwards, the extruding force enables the flexible pipe 10 to be compressed, when the sealing property between the sealing ring 12 and the short joint 4 is adjusted, the two T-shaped fastening bolts 5 are rotated forwards, under the action of the two threaded holes arranged on the sleeve head female buckle 3, the T-shaped fastening bolts 5 rotate and move to be in close contact with the outer side of the short joint 4, the short joint 4 is fixed under the extrusion force between the two T-shaped fastening bolts 5, the pipe sleeve valve is in sealed connection with the well testing gun head, and the spring 13 is arranged, so that the bottom of the sealing ring 12 can be in close contact with the top of the short joint 4 all the time, the connection sealing performance of the sealing ring is improved, and potential safety hazards are reduced;

when no short section exists on one side of the casing valve, the T-shaped fastening bolt 5 can be rotated reversely, the T-shaped fastening bolt 5 rotates and is separated from the short joint 4, the short joint 4 is released from being fixed, the short joint 4 is pulled out from the casing head female buckle 3, then an outer hexagon nut on the casing valve is directly sleeved in a hexagon structure in the casing head female buckle 3, the casing valve is pushed upwards to move to be contacted with the bottom of a sealing ring 12, the casing valve is continuously pushed upwards to drive the sealing ring 12 to move upwards, the sealing ring 12 drives a ring 9 to slide upwards on two positioning blocks 8 and compress a spring 13, the ring 9 upwards compresses a telescopic hose 10, when the sealing property between the sealing ring 12 and the casing valve is adjusted, the two T-shaped fastening bolts 5 are rotated to fix the casing valve, and when testing is performed, the gun head female buckle 1 is connected with a test well gun head, need not frequently dismantle, only need dismantle the casing valve one end can, short connector 4 cooperation T shape fastening bolt 5 detachable mode can all realize sealed installation when the casing valve has the nipple joint and does not have the nipple joint, improves and uses the flexibility.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A quick connector device with high flexibility for oil well logging comprises a quick connector body, wherein the quick connector body comprises a gun head female buckle (1), a baffle (2) is fixedly connected to the bottom of the gun head female buckle (1), and a casing head female buckle (3) is fixedly connected to the bottom of the baffle (2), and is characterized in that the inner side of the casing head female buckle (3) is of a hexagonal structure, a short joint (4) is arranged in the casing head female buckle (3), the bottom of the short joint (4) extends to the lower side of the casing head female buckle (3), T-shaped fastening bolts (5) are arranged on two sides of the short joint (4), the two T-shaped fastening bolts (5) are symmetrically arranged, one sides, far away from each other, of the two T-shaped fastening bolts (5) extend out of the casing head female buckle (3), the casing head female buckle (3) is sleeved on the two T-shaped fastening bolts (5) in a threaded manner, a first through hole (6) is formed in the top of the baffle (2), the first through hole (6) is communicated with the inside of the gun head female buckle (1) and the sleeve head female buckle (3), and the baffle plate (2) is provided with a sealing and pressing mechanism.

2. The quick connector device for oil well logging with high flexibility as claimed in claim 1, its characterized in that, sealed hold-down mechanism is including offering ring channel (7) on first through-hole (6) lateral wall, establish to the opening bottom of ring channel (7), ring channel (7) inner seal slip cover is equipped with ring (9), the bottom of ring (9) extends to the below of baffle (2) and bonds and is fixed with sealing washer (12), two locating pieces of fixedly connected with (8) on the top inner wall of ring channel (7), rectangular channel (11) have all been seted up to the top both sides of ring (9), the bottom of locating piece (8) extends to in corresponding rectangular channel (11), fixedly connected with spring (13) between the bottom inner wall of the bottom of rectangular channel (11) and the bottom of locating piece (8) that corresponds, fixedly connected with expansion hose (10) between the top of ring (9) and the top inner wall of ring channel (7).

3. The quick coupling device for oil well logging with high flexibility according to claim 1, wherein threaded holes are formed in the inner walls of the two sides of the casing head female buckle (3) and are in threaded connection with corresponding T-shaped fastening bolts (5).

4. The quick coupling device for oil well logging with high flexibility according to claim 1, characterized in that the inner side of the gun head female buckle (1) is provided with internal threads, and the outer side of the short coupling (4) is provided with external threads.

5. The quick coupling device for oil well logging with high flexibility according to claim 2 is characterized in that a sealing rubber sheet is fixedly bonded to the outer side of the circular ring (9), and the outer side of the sealing rubber sheet is in movable contact with the inner wall of the annular groove (7).

6. The quick coupling device for oil well logging with high flexibility according to claim 2, wherein the inner walls of the two sides, away from each other, of the rectangular grooves (11) are fixedly connected with sliding blocks (15), the sides, away from each other, of the two positioning blocks (8) are respectively provided with sliding grooves (14), and the sliding blocks (15) are slidably connected with the corresponding sliding grooves (14).

7. A highly flexible quick coupling device for oil well logging according to claim 2, wherein said first through hole (6) has a smaller diameter than the inner diameter of the flexible hose (10).