CN212958502U

CN212958502U - Produce liquid section test manifold connecting device

Info

Publication number: CN212958502U
Application number: CN202021359062.9U
Authority: CN
Inventors: 张国富; 张国庆
Original assignee: Shanghai Kaiwu Petroleum Instrument Co ltd
Current assignee: Shanghai Kaiwu Petroleum Instrument Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-04-13
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses a production liquid profile test manifold connecting device, belonging to the technical field of oil well exploitation; comprises a main sleeve, a connecting pipe joint and a valve port pipe; a pipe seat is welded in the middle of the main sleeve, a sealing disc is arranged at the lower end of the pipe seat and is in threaded connection with the main sleeve, a pipe body sheath is arranged at the lower end of the sealing disc and is adjacent to the lower end of the sealing disc, and the pipe body sheath is sleeved with the main sleeve; the connecting pipe joint is inserted at the upper end of the main sleeve, a plug pipe orifice is arranged in a groove in the connecting pipe joint and communicated with the main sleeve, and a sealing ring is clamped at the inner side of the joint of the connecting pipe joint and the main sleeve; the valve port pipe is fixed at the bottom end of the main sleeve, a hydraulic cavity is arranged in the valve port pipe in a groove, a movable pipeline is arranged between the manifold and the test pipe, and the hydraulic motion in the well is buffered by the upper plug sleeve and the lower plug sleeve which are arranged in the pipeline in a relative motion manner, so that the stability of the test work is ensured.

Description

Produce liquid section test manifold connecting device

Technical Field

The utility model relates to an oil well exploitation technical field, especially a produce liquid section test manifold connecting device.

Background

The fluid production profile test is a task of researching a drilling geological profile in detail, detecting useful mineral products, providing data required for calculating reserves in detail, such as effective thickness, porosity, oil-gas saturation, permeability and the like of an oil layer and researching the technical condition of drilling according to geological and geophysical conditions;

in the testing stage, after the liquid production profile tester is arranged in a well, the well mouth position needs to be sealed and a manifold is additionally arranged, wherein the manifold is communicated with the tester through a pipeline, and because the manifold is used for performing valve opening, valve closing and pressure relief operations on the well during testing, a connecting pipeline is easily influenced by hydraulic pressure filled up and down when a valve port of the manifold is opened and closed actually, so that the abrasion of a valve body and the pipeline is caused, and the reliability and the effective service life of the pipeline in the testing stage are influenced.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

The utility model aims at solving the problems and providing a production fluid profile test manifold connecting device, which comprises a main casing, a connecting pipe joint and a valve port pipe;

a pipe seat is welded in the middle of the main sleeve, a sealing disc is arranged at the lower end of the pipe seat and is in threaded connection with the main sleeve, a pipe body sheath is arranged at the lower end of the sealing disc in an adjacent mode, and the pipe body sheath is sleeved with the main sleeve;

the connecting pipe joint is inserted at the upper end of the main sleeve, a plug pipe opening is formed in the connecting pipe joint, the plug pipe opening is communicated with the main sleeve, and a sealing ring is clamped at the inner side of the connecting position of the connecting pipe joint and the main sleeve;

the valve port pipe is fixed at the bottom end of the main sleeve, a hydraulic cavity is formed in the valve port pipe in a groove mode, a lower interface disc is arranged at the lower end of the valve port pipe in a penetrating mode, an upper plug sleeve and a lower plug sleeve are arranged at the upper end and the lower end of the hydraulic cavity respectively, shaft discs are sleeved at the lower ends of the upper plug sleeve and the lower plug sleeve respectively, compression spring rings are sleeved at the middle portions of the upper plug sleeve and the lower plug sleeve respectively, a through pipe is arranged between the upper plug sleeve and the lower plug sleeve in a penetrating mode, and the through pipe is communicated with the main sleeve.

Furthermore, the tube seat is a metal disc seat, a plurality of bolt pieces are distributed on the edge of the tube seat in an annular mode, and the tube seat is fixed with the test ground through the bolt pieces.

Further, the sealing ring is an I-shaped colloid pipe sleeve, and the pipe diameters of the sealing ring and the plug pipe orifice are smaller than that of the main sleeve.

Furthermore, the upper plug sleeve and the lower plug sleeve are notch metal sleeve bodies, and the upper plug sleeve and the lower plug sleeve are clamped with the hydraulic cavity through a shaft disc.

Furthermore, the through pipe is connected with the inner walls of the upper plug sleeve and the lower plug sleeve in a sliding mode, a T-shaped clamping block protrudes from the lower end of the through pipe, and the outer contour of the lower end of the through pipe is matched with the notch of the lower plug sleeve.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. a produce liquid section test manifold connecting device in this scheme, this connecting device is through arranging the connecting pipe joint at main casing upper and lower both ends, the transfer structure between manifold pipeline and produce liquid section tester is regarded as to lower interface disc, the fluid hydraulic pressure of conduction will act on the siphunculus position in the testing process, and through last plug bush, lower plug bush is at the relative motion in the hydraulic pressure chamber, utilize the main casing pipeline to cushion the relative motion between tester and the manifold, avoid fluid hydraulic pressure to the harm of switch valve body in the manifold, the job stabilization of tester and manifold has been guaranteed.

2. A production fluid section test manifold connecting device in this scheme, on main sleeve pipe and manifold pipeline, tester intercommunication structure basis, the device buries the packaging structure who distributes in the well head stratum as the main sleeve pipe through the setting of connecting tube coupling, tube socket and lower interface dish to guarantee the leakproofness of inserting the pipeline through connecting tube coupling, lower interface dish when the test, and further fix the main sleeve pipe wholly with the help of tube socket structure.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the upper plug sleeve and the lower plug sleeve of the present invention.

Fig. 3 is a schematic view of the internal structure of the connecting pipe joint of the present invention.

In the attached drawing, 1-main sleeve, 2-pipe seat, 3-connecting pipe joint, 4-valve port pipe, 5-sealing disk, 6-pipe body sheath, 7-lower interface disk, 8-through pipe, 9-hydraulic cavity, 10-upper plug sleeve, 11-lower plug sleeve, 12-compression spring ring, 13-shaft disk, 14-plug pipe port and 15-sealing ring.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

With reference to fig. 1-3, the utility model discloses a production profile testing manifold connecting device, which comprises a main casing 1, a connecting pipe joint 3 and a valve port pipe 4;

the middle of a main sleeve 1 is welded with a tube seat 2, the lower end of the tube seat 2 is provided with a sealing disc 5, the sealing disc 5 is in threaded connection with the main sleeve 1, the lower end of the sealing disc 5 is adjacently provided with a tube body sheath 6, the tube body sheath 6 is sleeved with the main sleeve 1, the tube seat 2 is a metal disc seat, a plurality of bolt pieces are annularly distributed on the edge of the tube seat 2, the tube seat 2 is fixed with a test ground through the bolt pieces, the main sleeve 1 is buried under a well mouth stratum during installation and is fixed with a well mouth edge frame through the bolt pieces distributed outside the tube seat 2 after being butted with a well;

the connecting pipe joint 3 is inserted at the upper end of the main sleeve 1, a plug pipe orifice 14 is arranged in a groove in the connecting pipe joint 3, the plug pipe orifice 14 is communicated with the main sleeve 1, a sealing ring 15 is clamped at the inner side of the joint of the connecting pipe joint 3 and the main sleeve 1, the sealing ring 15 is an I-shaped colloid pipe sleeve, the pipe diameters of the sealing ring 15 and the plug pipe orifice 14 are smaller than that of the main sleeve 1, the device uses the plug pipe orifice 14 on the connecting pipe joint 3 as a manifold inserting end, and the sealing rings 15 are arranged at the joints of a manifold pipeline, the plug pipe orifice 14 and the main sleeve 1 to ensure the air tightness of;

the valve port pipe 4 is fixed at the bottom end of the main sleeve 1, a hydraulic cavity 9 is arranged in the valve port pipe 4 in a groove manner, a lower port disc 7 is arranged at the lower end of the valve port pipe 4 in a penetrating manner, an upper plug sleeve 10 and a lower plug sleeve 11 are respectively arranged at the upper end and the lower end of the hydraulic cavity 9, a shaft disc 13 is respectively sleeved at the lower ends of the upper plug sleeve 10 and the lower plug sleeve 11, a compression spring ring 12 is respectively sleeved at the middle parts of the upper plug sleeve 10 and the lower plug sleeve 11, a through pipe 8 is arranged between the upper plug sleeve 10 and the lower plug sleeve 11 in a penetrating manner, the through pipe 8 is communicated with the main sleeve 1, the upper plug sleeve 10 and the lower plug sleeve 11 are notch metal sleeve bodies, the upper plug sleeve 10 and the lower plug sleeve 11 are clamped with the hydraulic cavity 9 through the shaft disc 13, the through pipe 8 is slidably connected with the inner walls of the upper plug sleeve 10 and the lower plug sleeve 11, a T-shaped fixture block is protruded at the lower end of the through pipe 8, the outer contour, the oil is full of the instantaneous hydraulic pressure generated in the well, and is transmitted to the valve port pipe 4 along the surface of the test instrument, the test instrument moves in the pipeline and slides and goes up and down in the hydraulic cavity 9 by driving the lower plug sleeve 11, the edge of the lower plug sleeve 11 compresses the compression spring ring 12 in the process, after the pressure in the main sleeve 1 is balanced with the pressure in the bottom wellhead pipeline, the hydraulic pressure does not act on the lower plug sleeve 11 any more, the elasticity of the compression spring ring 12 enables the lower plug sleeve 11 to reset, otherwise, after the wellhead pipeline and the upper end space of the main sleeve 1 form negative pressure, the upper plug sleeve 10 compresses the compression spring ring 12 downwards along the hydraulic cavity 9, and the hydraulic motion in the wellhead pipeline is buffered by the relative movement of the upper plug sleeve 10 and the lower plug sleeve 11 in the hydraulic cavity 9.

Here, the upper, lower, left, right, front, and rear represent only relative positions thereof and do not represent absolute positions thereof. The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a production profile test manifold connecting device, includes main sleeve pipe (1), connecting tube festival (3) and valve mouth pipe (4), its characterized in that:

a tube seat (2) is welded in the middle of the main sleeve (1), a sealing disc (5) is arranged at the lower end of the tube seat (2), the sealing disc (5) is in threaded connection with the main sleeve (1), a tube body sheath (6) is adjacently arranged at the lower end of the sealing disc (5), and the tube body sheath (6) is sleeved with the main sleeve (1);

the connecting pipe joint (3) is inserted at the upper end of the main sleeve (1), a plug pipe orifice (14) is arranged in a groove in the connecting pipe joint (3), the plug pipe orifice (14) is communicated with the main sleeve (1), and a sealing ring (15) is clamped at the inner side of the joint of the connecting pipe joint (3) and the main sleeve (1);

valve mouth pipe (4) are fixed in main casing (1) bottom, the fluting is provided with hydraulic pressure chamber (9) in valve mouth pipe (4), valve mouth pipe (4) lower extreme link up and is provided with interface dish (7) down, both ends are provided with plug sleeve (10) and lower plug sleeve (11) respectively about in hydraulic pressure chamber (9), go up plug sleeve (10) and plug sleeve (11) lower extreme and all cup jointed shaft dish (13) down, it all cup joints compressed spring circle (12) with plug sleeve (11) middle part down to go up plug sleeve (10), it is provided with siphunculus (8) to link up between plug sleeve (10) and lower plug sleeve (11), siphunculus (8) and main casing (1) intercommunication.

2. A fluid production profile testing manifold coupling apparatus as claimed in claim 1, wherein: the test tube is characterized in that the tube seat (2) is a metal disc seat, a plurality of bolt pieces are annularly distributed on the edge of the tube seat (2), and the tube seat (2) is fixed with the test ground through the bolt pieces.

3. A fluid production profile testing manifold coupling apparatus as claimed in claim 1, wherein: the sealing ring (15) is an I-shaped colloid pipe sleeve, and the pipe diameters of the sealing ring (15) and the plug pipe opening (14) are smaller than that of the main sleeve (1).

4. A fluid production profile testing manifold coupling apparatus as claimed in claim 1, wherein: the upper plug sleeve (10) and the lower plug sleeve (11) are notch metal sleeve bodies, and the upper plug sleeve (10) and the lower plug sleeve (11) are clamped with the hydraulic cavity (9) through a shaft disc (13).

5. A fluid production profile testing manifold coupling apparatus as claimed in claim 1, wherein: the through pipe (8) is connected with the inner walls of the upper plug sleeve (10) and the lower plug sleeve (11) in a sliding mode, a T-shaped clamping block protrudes from the lower end of the through pipe (8), and the outer contour of the lower end of the through pipe (8) is matched with a notch of the lower plug sleeve (11).