CN212927759U

CN212927759U - Slurry remote distribution mechanism

Info

Publication number: CN212927759U
Application number: CN202021002718.1U
Authority: CN
Inventors: 周力帅; 顾欢; 王珏
Original assignee: Yancheng Jiaxin Petroleum Machinery Manufacture Co ltd
Current assignee: Yancheng Jiaxin Petroleum Machinery Manufacture Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-04-09
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to a long-range distribution mechanism of mud, include three slush pumps, the slush pump includes the body, there are inlet, well head, through circulation mouth and piston assembly on the body, the piston assembly controls the inlet and forms the route with well head or through circulation mouth; the through circulation ports of the three mud pumps are communicated to form a circulation tank connecting passage; the drifting ports of the three mud pumps are communicated, and pipeline distribution valves are arranged at the drifting ports of the two mud pumps; according to the scheme, a set of slurry remote distribution mechanism is designed, so that the distribution and control among a slurry tank, a ground manifold and a circulating tank can be conveniently realized, a passage is formed in a drilling state, and pressure relief is performed in a drilling stopping state; the remote distribution mechanism can also control which ground manifold the mud goes to, and can meet the needs of actual drilling state.

Description

Slurry remote distribution mechanism

Technical Field

The utility model relates to a long-range distribution device of mud belongs to oil drilling equipment technical field.

Background

Most of the existing drilling mud manifolds are controlled and distributed through valves, the arrangement and distribution of pipelines and valves are complex, the operation and the control are inconvenient, and a large amount of manpower and material resources are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a long-range distribution device of mud in order to overcome prior art not enough.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a slurry remote distribution mechanism comprises three slurry pumps, wherein each slurry pump comprises a shell, a liquid inlet, a well opening, a circulation opening and a piston assembly are arranged on each shell, and the piston assembly controls the liquid inlet to form a passage with the well opening or the circulation opening; the through circulation ports of the three mud pumps are communicated to form a circulation tank connecting passage; the well inlets of the three mud pumps are communicated, and pipeline distribution valves are arranged at the well inlets of the two mud pumps.

Preferably, the three mud pumps are arranged side by side, the drifting port of the middle mud pump is provided with a T-shaped three-way joint, the drifting ports of the mud pumps on two sides are connected with the T-shaped three-way joint of the middle mud pump through corner three-way joints, and the corner three-way joints of the mud pumps on two sides are connected with a pipeline distribution valve.

Preferably, the line distributor valve is a manual valve.

Preferably, the through circulation ports of the three mud pumps are connected through a right-angle tee joint.

Preferably, the piston assembly comprises a piston shell, an upper piston rod and a lower piston rod, and an upper piston slide block and a lower piston slide block are arranged in the piston shell; the upper piston rod and the lower piston rod penetrate through the well opening and the circulation opening, and the well opening flashboards and the circulation opening flashboards are arranged on the upper piston rod and the lower piston rod; the upper piston slide block drives the upper piston rod to move, and the lower piston slide block drives the lower piston rod to move.

Preferably, the rear end of the piston housing is provided with an indication rod cover, and the rear ends of the upper piston rod and the lower piston rod can extend into the indication rod cover.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

according to the scheme, a set of slurry remote distribution mechanism is designed, so that the distribution and control among a slurry tank, a ground manifold and a circulating tank can be conveniently realized, a passage is formed in a drilling state, and pressure relief is performed in a drilling stopping state; the remote distribution mechanism can also control which ground manifold the mud goes to, and can meet the needs of actual drilling state.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

fig. 1 is a schematic diagram of a slurry remote distribution mechanism according to the present invention;

fig. 2 is a schematic structural diagram of the mud pump of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the remote distribution mechanism for slurry in the present invention comprises three slurry pumps arranged side by side, the slurry pump comprises a housing 3, and the housing 3 is provided with a liquid inlet 4, a well opening 5, a circulation opening 6 and a piston assembly 7.

The liquid inlets 4 of the three mud pumps are respectively used for connecting three groups of mud tanks, the well opening 5 of the mud pump in the middle is provided with a T-shaped three-way joint, the well openings 5 of the mud pumps on two sides are connected with the T-shaped three-way joint of the mud pump in the middle through corner three-way joints, and the corner three-way joints on two sides are provided with pipeline distribution valves 9 for connecting a ground manifold.

The through circulation ports 6 of the three mud pumps are connected through a right-angle three-way joint to form a circulation tank connecting passage for connecting the circulation tank.

The main body of the piston assembly 7 is a hydraulic piston cylinder, and the piston assembly 7 controls the liquid inlet 4 to form a passage with the well opening 5 or the circulation opening 6; the piston assembly 7 comprises a piston shell 11, an upper piston rod 12 and a lower piston rod 13, wherein an upper piston slide block 14 and a lower piston slide block 15 are arranged in the piston shell 11; the upper piston rod 12 and the lower piston rod 13 penetrate through the well opening 5 and the circulation opening 6, and the well opening flashboards 16 and the circulation opening flashboards 17 are arranged on the upper piston rod 12 and the lower piston rod 13; the upper piston slide block 14 drives the upper piston rod 12 to move, and the lower piston slide block 15 drives the lower piston rod 13 to move; the rear end of the piston housing 11 is provided with an indication rod cover 18, and the rear ends of the upper piston rod 12 and the lower piston rod 13 can extend into the indication rod cover 18 to display the working state of the piston rods.

Under the drilling state, the upper piston slide block 14 and the lower piston slide block 15 synchronously move forwards under the hydraulic action, so that the through circulation port flashboard 17 blocks the through circulation port 6, and the through wellhead flashboard 16 opens the wellhead 5; at this point, the liquid inlet 4 and the well opening 5 form a passage for the slurry to pass to the surface manifold 2.

In a drill stopping state, the upper piston slide block 14 and the lower piston slide block 15 synchronously move backwards under the action of hydraulic pressure, so that the through well opening flashboard 16 blocks the through well opening 5, and the through circulation opening flashboard 17 opens the through circulation opening 6; at the moment, the liquid inlet 4 and the circulation opening 6 form a passage, so that the mud is led to the circulation tank for pressure relief.

In a non-working state, such as maintenance and the like, the upper piston slide block 14 and the lower piston slide block 15 can move in a staggered manner in tandem, and at the moment, the well opening 5 and the circulation opening 6 are respectively blocked by the well opening flashboard 16 and the circulation opening flashboard 17 of the upper piston rod 12 or the lower piston rod 13, so that the safety is ensured.

The pipeline distribution valves 9 are manually controlled, and as the well opening ports 5 of the three mud pumps are communicated, one pipeline distribution valve 9 is closed in a drilling state, and mud can be completely led to the other ground manifold, so that the flow path control of the two ground manifolds can be realized.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a long-range distribution mechanism of mud which characterized in that: the mud pump comprises three mud pumps, wherein the mud pump comprises a shell (3), a liquid inlet (4), a well opening (5), a circulation opening (6) and a piston assembly (7) are arranged on the shell (3), and the piston assembly (7) controls the liquid inlet (4) to form a passage with the well opening (5) or the circulation opening (6); the through circulation ports (6) of the three slurry pumps are communicated to form a circulation tank connecting passage; the well openings (5) of the three mud pumps are communicated, wherein pipeline distribution valves (9) are arranged at the well openings (5) of the two mud pumps.

2. The remote mud dispensing mechanism of claim 1, wherein: the three mud pumps are arranged side by side, the drifting port (5) of the mud pump positioned in the middle is provided with a T-shaped three-way joint, the drifting ports (5) of the mud pumps positioned on two sides are connected with the T-shaped three-way joint of the mud pump positioned in the middle through corner three-way joints, and the corner three-way joints of the mud pumps positioned on two sides are connected with a pipeline distribution valve (9).

3. Remote mud dispensing mechanism according to claim 1 or 2, characterized in that: the pipeline distribution valve (9) is a manual valve.

4. The remote mud dispensing mechanism of claim 1, wherein: the through circulation ports (6) of the three mud pumps are connected through a right-angle tee joint.

5. The remote mud dispensing mechanism of claim 1, wherein: the piston assembly (7) comprises a piston shell (11), an upper piston rod (12) and a lower piston rod (13), and an upper piston slide block (14) and a lower piston slide block (15) are arranged in the piston shell (11); the upper piston rod (12) and the lower piston rod (13) penetrate through the well opening (5) and the circulation opening (6), and the upper piston rod (12) and the lower piston rod (13) are respectively provided with a well opening flashboard (16) and a circulation opening flashboard (17); the upper piston slide block (14) drives the upper piston rod (12) to move, and the lower piston slide block (15) drives the lower piston rod (13) to move.

6. Remote mud dispensing mechanism according to claim 5, wherein: an indicating rod cover (18) is arranged at the rear end of the piston shell (11), and the rear ends of the upper piston rod (12) and the lower piston rod (13) can extend into the indicating rod cover (18).