Integrated throttling and killing manifold device for oil field

Abstract

The utility model discloses an oil field integrated throttling kill manifold device which comprises a base, a first connecting square block is arranged at the upper left corner of the base, a second connecting square block is arranged below the first connecting square block, a throttling valve is arranged below the second connecting square block, and a throttling valve is arranged below the throttling valve. A third connecting square block is arranged below the throttling valve. The device further comprises other connecting square blocks, a connecting short section and a valve. According to the device, the process requirements of positive and negative well killing, positive and negative throttling, positive and negative circulation (well washing, sand washing and the like), positive and negative extrusion, well killing fluid recycling, blowout and fluid discharging and the like can be met only by switching the valves without a dismounting process, the safety is guaranteed, construction is convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to oil production equipment, more specifically, to an oil field integrated throttling and well-killing manifold device. Background Art

[0002] At present, during underground operations, the well-killing manifold and the choke manifold are installed on both sides of the wellhead. There are usually operating pipe rods, pumping units, workover vehicles, wellhead processes, etc. around the wellhead. The space is small and the working environment is poor. The manifolds are placed on both sides, occupying the site and affecting the smooth flow of the escape passage. During the operation, in order to achieve the process requirements of positive and negative circulation, positive and negative squeezing, positive and negative well-killing, positive and negative throttling, etc., it is necessary to dismantle the ground process and then install it according to the needs. Only after the re-pressure test is qualified can the process requirements be met. The process connection time is long and the operation risk is high, especially for positive flushing and backwashing operations, squeezing cement and other plugging operations. The disassembly and assembly process takes a long time, and it is easy to have underground accidents such as pipe string stuck, which poses a great operation risk. Utility Model Content

[0003] Based on this, it is necessary to provide an oilfield integrated throttling and well-killing manifold device to address the above technical issues.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An integrated throttling and well-killing manifold device for oil fields, characterized in that the integrated throttling and well-killing manifold device for oil fields comprises a base, a first connecting block is provided at the upper left corner of the base, a second connecting block is provided below the first connecting block, a throttling valve is provided below the second connecting block, and a third connecting block is provided below the throttling valve.

[0006] The first connection block is connected to the second connection block via a first connection short section, the second connection block is connected to the throttle valve via a second connection short section, the throttle valve is connected to the third connection block via a third connection short section, a seventh flat valve is provided on the right side of the third connection block, and a fifth interface is provided on the right side of the seventh flat valve.

[0007] A first flat valve is disposed on the right side of the first connecting block, and a third interface is disposed on the right side of the first flat valve.

[0008] The second connecting block is connected to a second flat valve through a fourth connecting nipple, and a fourth interface is provided on the right side of the second flat valve.

[0009] A fourth connecting block is disposed below the second connecting block, a fifth connecting short section is disposed on the left side of the fourth connecting block, a first interface is disposed at the end of the fifth connecting short section, and the right side of the fourth connecting block is connected to the fifth connecting block via a sixth connecting short section.

[0010] A third flat valve is disposed at the bottom of the fourth connecting block, a sixth connecting block is disposed at the bottom of the third flat valve, a fourth flat valve is disposed at the bottom of the sixth connecting block, a seventh connecting block is disposed at the bottom of the fourth flat valve, a seventh connecting short section is disposed at the left side of the seventh connecting block, a second interface is disposed at the end of the seventh connecting short section, and the right side of the seventh connecting block is connected to a ninth connecting block via an eighth connecting short section.

[0011] A fifth flat valve is provided below the fifth connecting block, an eighth connecting block is provided below the fifth flat valve, a sixth flat valve is provided below the eighth connecting block, the lower part of the sixth flat valve is connected to the ninth connecting block at its lower part, a check valve is provided on the right side of the eighth connecting block, and a sixth interface is provided on the right side of the check valve.

[0012] As a preferred embodiment of the utility model, the first interface is connected to a connecting oil pipe, the second interface is connected to a connecting sleeve, the third interface is connected to a straight-through spray unit, the fourth interface is connected to a ground test unit, the fifth interface is connected to a circulation tank, and the sixth interface is connected to a pump.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The oilfield integrated throttling and well-killing manifold device has the following advantages:

[0015] 1) The utility model has reasonable structural design, integrated functions, and adopts standard valve groups connected through components. It has the advantages of simple manufacturing process, high safety factor and long service life;

[0016] 2) The utility model can select valves and component combinations with appropriate pressure levels and diameters according to the needs of oil field downhole operations;

[0017] 3) During construction, the oilfield integrated throttling and well-killing manifold device is placed on the side of the wellhead, between the well and the mud tank, connecting the wellhead, circulation tank, pump truck, blowout port, test process, etc., which can effectively save the work site space, optimize the construction site layout, and improve the level of standardized work site;

[0018] 4) No disassembly and assembly process is required. By switching the valve, the following process requirements can be met: positive and negative well pressure, positive and negative throttling, positive and negative circulation (well washing, sand flushing, etc.), positive and negative squeezing, recovery of well pressure fluid, and release of fluid. Safety is guaranteed, construction is convenient, and work efficiency is improved;

[0019] 5) By switching valves to meet different process requirements, the risk of liquid flowing into the ground and polluting the environment during process disassembly and assembly is avoided, which is of great significance to the safe production and green production of oil fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the oilfield integrated throttling and well-killing manifold device of the utility model;

[0022] Figure 2 for Figure 1 The connection diagram of the integrated throttling and well-killing manifold device of the oil field;

[0023] The markings in the figure are as follows: 1. Base; 21. First connecting block; 22. Second connecting block; 23. Third connecting block; 24. Fourth connecting block; 25. Fifth connecting block; 26. Sixth connecting block; 27. Seventh connecting block; 28. Eighth connecting block; 29. ​​Ninth connecting block; 4.1. First interface; 4.2. Second interface; 4.3. Third interface; 4.4. Fourth interface; 4.5. Fifth interface; 4.6. Sixth interface; 5. Throttle valve; 61. First flat valve; 62. Second flat valve Valve; 63, third flat valve; 64, fourth flat valve; 65, fifth flat valve; 66, sixth flat valve; 67, seventh flat valve; 7, check valve; L1, first connecting short section; L2, second connecting short section; L3, third connecting short section; L4, fourth connecting short section; L5, fifth connecting short section; L6, sixth connecting short section; L7, seventh connecting short section; L8, eighth connecting short section; A1, connecting oil pipe; A2, connecting casing; B1, straight-through blowdown unit; B2, ground test unit; B3, circulation tank; B4, pump. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] like Figure 1 As shown, the oilfield integrated throttling and well-killing manifold device includes a base 1, a first connecting block 21 is provided at the upper left corner of the base 1, a second connecting block 22 is provided below the first connecting block 21, a throttle valve 5 is provided below the second connecting block 22, and a third connecting block 23 is provided below the throttle valve 5.

[0026] The first connecting block 21 is connected to the second connecting block 22 via a first connecting short section L1, the second connecting block 22 is connected to the throttle valve 5 via a second connecting short section L2, the throttle valve 5 is connected to the third connecting block 23 via a third connecting short section L3, a seventh flat valve 67 is provided on the right side of the third connecting block 23, and a fifth interface 4.5 is provided on the right side of the seventh flat valve 67.

[0027] A first flat valve 61 is disposed on the right side of the first connecting block 21 , and a third interface 4 . 3 is disposed on the right side of the first flat valve 61 .

[0028] The second connecting block 22 is connected to a second flat valve 62 via a fourth connecting nipple L4. A fourth interface 4.4 is provided on the right side of the second flat valve 62.

[0029] A fourth connecting block 24 is provided below the second connecting block 22, a fifth connecting short section L5 is provided on the left side of the fourth connecting block 24, a first interface 4.1 is provided at the end of the fifth connecting short section L5, and the right side of the fourth connecting block 24 is connected to a fifth connecting block 25 via a sixth connecting short section L6.

[0030] A third flat valve 63 is provided at the bottom of the fourth connecting block 24, a sixth connecting block 26 is provided at the bottom of the third flat valve 63, a fourth flat valve 64 is provided at the bottom of the sixth connecting block 26, a seventh connecting block 27 is provided at the bottom of the fourth flat valve 64, a seventh connecting short section L7 is provided at the left side of the seventh connecting block 27, a second interface 4.2 is provided at the end of the seventh connecting short section L7, and the right side of the seventh connecting block 27 is connected to a ninth connecting block 29 via an eighth connecting short section L8.

[0031] A fifth flat valve 65 is provided below the fifth connecting block 25, an eighth connecting block 28 is provided below the fifth flat valve 65, a sixth flat valve 66 is provided below the eighth connecting block 28, the lower part of the sixth flat valve 66 is connected to the ninth connecting block 29, a check valve 7 is provided on the right side of the eighth connecting block 28, and a sixth interface 4.6 is provided on the right side of the check valve 7.

[0032] The working mode of the oilfield integrated throttling and well-killing manifold device is described below.

[0033] like Figure 2 As shown, when the well site is arranged, the integrated throttling and well killing manifold is placed on one side of the wellhead, so that the first interface 4.1 is connected to a connecting oil pipe A1, and the second interface 4.2 is connected to a connecting casing A2.

[0034] In addition, the third interface 4.3 is connected to a straight-through spraying unit B1, the fourth interface 4.4 is connected to a ground test unit B2, the fifth interface 4.5 is connected to a circulation tank B3, and the sixth interface 4.6 is connected to a pump B4.

[0035] Finally, according to different process needs, corresponding valve switching can meet the requirements.

[0036] The oilfield integrated throttling and well-killing manifold device uniformly installs various connecting short sections and connecting blocks on the base to form a new device after integration. The device has the functions of throttling manifold and well-killing manifold, and does not require disassembly and assembly processes. It can meet the process requirements of positive and negative well killing, positive and negative throttling, positive and negative circulation (well washing, sand flushing, etc.), positive and negative squeezing, recovery of well-killing fluid, and fluid discharge by switching valves.

[0037] The oilfield integrated throttling and well-killing manifold device has the following advantages:

[0038] 1) The utility model has reasonable structural design, integrated functions, and adopts standard valve groups connected through components. It has the advantages of simple manufacturing process, high safety factor and long service life;

[0039] 2) The utility model can select valves and component combinations with appropriate pressure levels and diameters according to the needs of oil field downhole operations;

[0040] 3) During construction, the oilfield integrated throttling and well-killing manifold device is placed on the side of the wellhead, between the well and the mud tank, connecting the wellhead, circulation tank, pump truck, blowout port, test process, etc., which can effectively save the work site space, optimize the construction site layout, and improve the level of standardized work site;

[0041] 4) No disassembly and assembly process is required. By switching the valve, the following process requirements can be met: positive and negative well pressure, positive and negative throttling, positive and negative circulation (well washing, sand flushing, etc.), positive and negative squeezing, recovery of well pressure fluid, and release of fluid. Safety is guaranteed, construction is convenient, and work efficiency is improved;

[0042] 5) By switching valves to meet different process requirements, the risk of liquid flowing into the ground and polluting the environment during process disassembly and assembly is avoided, which is of great significance to the safe production and green production of oil fields.

[0043] Without limitation to this, any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope defined in the claims.

Claims

1. An integrated throttling and well-killing manifold device for oil fields, characterized in that: The oilfield integrated throttling and well-killing manifold device comprises a base (1), a first connecting block (21) is provided at the upper left corner of the base (1), a second connecting block (22) is provided below the first connecting block (21), a throttling valve (5) is provided below the second connecting block (22), and a third connecting block (23) is provided below the throttling valve (5). The first connecting block (21) is connected to the second connecting block (22) via a first connecting short section (L1), the second connecting block (22) is connected to the throttle valve (5) via a second connecting short section (L2), the throttle valve (5) is connected to the third connecting block (23) via a third connecting short section (L3), a seventh flat valve (67) is provided on the right side of the third connecting block (23), and a fifth interface (4.5) is provided on the right side of the seventh flat valve (67). A first flat valve (61) is provided on the right side of the first connecting block (21), and a third interface (4.3) is provided on the right side of the first flat valve (61). The second connecting block (22) is connected to a second flat valve (62) via a fourth connecting nipple (L4). A fourth interface (4.4) is provided on the right side of the second flat valve (62). A fourth connecting block (24) is provided below the second connecting block (22); a fifth connecting short section (L5) is provided on the left side of the fourth connecting block (24); a first interface (4.1) is provided at the end of the fifth connecting short section (L5); and the right side of the fourth connecting block (24) is connected to a fifth connecting block (25) via a sixth connecting short section (L6). A third flat valve (63) is provided at the bottom of the fourth connecting block (24), a sixth connecting block (26) is provided at the bottom of the third flat valve (63), a fourth flat valve (64) is provided at the bottom of the sixth connecting block (26), a seventh connecting block (27) is provided at the bottom of the fourth flat valve (64), a seventh connecting short section (L7) is provided at the left side of the seventh connecting block (27), a second interface (4.2) is provided at the end of the seventh connecting short section (L7), and the right side of the seventh connecting block (27) is connected to a ninth connecting block (29) via an eighth connecting short section (L8). A fifth flat valve (65) is provided below the fifth connecting block (25), an eighth connecting block (28) is provided below the fifth flat valve (65), a sixth flat valve (66) is provided below the eighth connecting block (28), the lower part of the sixth flat valve (66) is connected to the ninth connecting block (29), a check valve (7) is provided on the right side of the eighth connecting block (28), and a sixth interface (4.6) is provided on the right side of the check valve (7).

2. The oilfield integrated throttling and well-killing manifold device according to claim 1, characterized in that: The first interface (4.1) is connected to a connecting oil pipe (A1), and the second interface (4.2) is connected to a connecting sleeve (A2). The third interface (4.3) is connected to a straight-through spray unit (B1), the fourth interface (4.4) is connected to a ground test unit (B2), the fifth interface (4.5) is connected to a circulation tank (B3), and the sixth interface (4.6) is connected to a pump (B4).

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