A skid-mounted profile control and water plugging process equipment

Abstract

The utility model discloses a kind of pry-mounted profile control water plugging process equipment, include liquid preparation tank pry, multifunctional pry and injection pump pry, the liquid preparation tank pry include clean water tank body, first polymer solution tank body and second polymer solution tank body, first polymer solution tank body and second polymer solution tank body are equipped with mixer in, multifunctional pry include liquid preparation unit and feed liquid unit, the liquid preparation unit include liquid preparation pump and liquid preparation hopper, the feed liquid unit include feed liquid pump, dosing pump and spiral mixer, the pry-mounted profile control water plugging process equipment is integrated pry-mounted into three kinds pry blocks with the process equipment of construction involved, 60Km range can complete the relocation of day, after relocation ends, two people can complete construction preparation per day. Except polymer is centrally prepared every day in construction process, can be operated without people. In construction process, realize automatic airtight addition of auxiliary agent, avoid human and auxiliary agent frequent contact, avoid easy foaming auxiliary agent pollution environment, effectively reduce HSE risk.

Description

Technical Field

[0001] This utility model relates to an oilfield equipment, more specifically, a skid-mounted profile control and water shut-off process equipment. Background Technology

[0002] Injecting polymers to adjust the water absorption profile and seal the water-producing layer is an effective measure to improve oil well recovery. During polymer injection, clean water from the water tank is increased by a mixing pump and then mixed with polymer powder through a mixing funnel before entering a mixing tank equipped with a mixer. After maturation in the mixing solution, additives are manually added and the mixture is stirred evenly. The mixture is then pressurized through hoses and manifolds and injected into the well via a pressure injection pump.

[0003] Existing profile control and water shut-off equipment is modified from reference water injection process equipment and can only basically meet the needs of polymer injection. In field application, it faces challenges such as complex interfaces, low equipment integration, inaccurate additive addition, low automation, low labor efficiency, long construction preparation cycle, and high labor intensity. The on-site workload is substantial, and there are certain safety and environmental risks. Utility Model Content

[0004] Therefore, it is necessary to provide a skid-mounted profile control and water shut-off process equipment to address the aforementioned technical problems.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A skid-mounted profile control and water shut-off process device, characterized in that the skid-mounted profile control and water shut-off process device includes a liquid preparation tank skid, a multi-functional skid, and an injection pump skid.

[0007] The liquid preparation skid includes a water tank, a first polymer solution tank, and a second polymer solution tank. Both the first and second polymer solution tanks are equipped with a stirrer. The bottom of the water tank has a first valve and a second valve. The bottom of the first polymer solution tank has a third valve and a fourth valve. The bottom of the second polymer solution tank has a fifth valve and a sixth valve.

[0008] The multi-functional skid includes a liquid preparation unit and a liquid feeding unit. The liquid preparation unit includes a liquid preparation pump and a liquid preparation funnel. The liquid feeding unit includes a liquid feeding pump, a dosing pump, and a spiral mixer.

[0009] The first valve, the third valve, and the fifth valve are connected to the inlet of the liquid mixing pump via a first pipeline.

[0010] The outlet of the solution mixing funnel is connected to a first release port and a second release port via a second pipeline. The first release port is located above the first polymer solution tank, and the second release port is located above the second polymer solution tank.

[0011] The second, fourth, and sixth valves are connected to the inlet of the feeding pump via a third pipeline.

[0012] The outlet of the spiral mixer is connected to the injection pump skid via a fourth pipeline.

[0013] In a preferred embodiment of this utility model, the water tank, the first polymer solution tank, and the second polymer solution tank are welded from steel plates.

[0014] In a preferred embodiment of this utility model, the mixer is a double-layer paddle mixer.

[0015] In a preferred embodiment of this utility model, the liquid dispensing pump is a centrifugal pump, the liquid feeding pump is a single screw pump, the injection pump skid is a three-cylinder plunger reciprocating pump, and the dosing pump is a stainless steel single plunger metering pump.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention provides a skid-mounted profile control and water shut-off process equipment. This equipment integrates all necessary process equipment into three types of skids, allowing for same-day relocation within a 60km range. After relocation, two people can complete construction preparation within one day. During construction, except for daily centralized polymer preparation, unmanned operation is possible. The system automatically and in a sealed manner adds additives, avoiding frequent contact between personnel and additives, preventing environmental pollution from foaming additives, and effectively reducing HSE risks. Attached Figure Description

[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the skid-mounted profile-adjusting and water-blocking process equipment of this utility model.

[0020] The markings in the diagram are explained as follows: 1. Clear water tank; 2. First polymer solution tank; 3. Second polymer solution tank; 4. Mixer; 5. Dispensing pump; 6. Dispensing funnel; 7. Feeding pump; 8. Dosing pump; 9. Spiral mixer; K1. First valve; K2. Second valve; K3. Third valve; K4. Fourth valve; K5. Fifth valve; K6. Sixth valve; P1. First pipeline; P2. Second pipeline; P21. First release port; P22. Second release port; P3. Third pipeline; P4. Fourth pipeline; S1. Dispensing tank skid; S2. Multifunctional skid; S21. Dispensing unit; S22. Feeding unit; S3. Injection pump skid. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, the skid-mounted profile control and water shut-off process equipment includes a liquid preparation tank skid S1, a multi-functional skid S2, and an injection pump skid S3.

[0023] The liquid preparation tank skid S1 includes a clean water tank 1, a first polymer solution tank 2, and a second polymer solution tank 3. Both the first polymer solution tank 2 and the second polymer solution tank 3 are equipped with a stirrer 4. The bottom of the clean water tank 1 is equipped with a first valve K1 and a second valve K2. The bottom of the first polymer solution tank 2 is equipped with a third valve K3 and a fourth valve K4. The bottom of the second polymer solution tank 3 is equipped with a fifth valve K5 and a sixth valve K6.

[0024] The multi-functional skid S2 includes a liquid preparation unit S21 and a liquid feeding unit S22. The liquid preparation unit S21 includes a liquid preparation pump 5 and a liquid preparation funnel 6. The liquid feeding unit S22 includes a liquid feeding pump 7, a dosing pump 8 and a spiral mixer 9.

[0025] The first valve K1, the third valve K3, and the fifth valve K5 are connected to the inlet of the liquid mixing pump 5 via the first pipeline P1.

[0026] The outlet of the liquid preparation funnel 6 is connected to the first release port P21 and the second release port P22 through the second pipeline P2. The first release port P21 is located above the first polymer solution tank 2, and the second release port P22 is located above the second polymer solution tank 3.

[0027] It should be noted that the second valve K2, the fourth valve K4, and the sixth valve K6 are connected to the inlet of the feeding pump 7 via the third pipeline P3.

[0028] The outlet of the spiral mixer 9 is connected to the injection pump skid S3 via the fourth pipeline P4.

[0029] In addition, the clear water tank 1, the first polymer solution tank 2, and the second polymer solution tank 3 are all welded from steel plates. The mixer 4 is a double-layer paddle mixer. The mixer 4 uses an explosion-proof motor with frequency conversion control, which can be remotely or locally adjusted to start and stop and adjust the frequency. The operating status, frequency, voltage, current, etc. of the mixer can be uploaded to the command center in real time.

[0030] In addition, the liquid mixing pump 5 is a centrifugal pump, and a liquid mixing discharge rate of 1m3 / min is more suitable. Taking into account the pump efficiency, the operating parameters of the liquid mixing pump are selected as follows: theoretical discharge rate ~85m3 / h, head 135m, and motor power 55kW.

[0031] The feeding pump 7 is a single screw pump. It adopts frequency conversion control and constant pressure operation. The working parameters are: theoretical displacement ~25m3 / h, discharge pressure 0.6MPa, and motor power 7.5kW.

[0032] The dosing pump 8 is a stainless steel single-plunger metering pump with stepless adjustment of discharge capacity. Operating parameters: rated flow rate 105L / h, discharge pressure 4MPa.

[0033] The S3 injection pump skid is a three-cylinder plunger reciprocating pump with frequency conversion control and overpressure protection. It features advanced technology, compact structure, high efficiency, low noise, wide displacement adjustment range, low polymer shear rate, low failure rate, and leak-free operation. Operating parameters: inlet pressure 0~0.5MPa, theoretical flow rate ~11.5m³ / h, temperature ≤80℃, outlet pressure 35MPa, motor power 132kW.

[0034] The spiral mixer 9 is made of stainless steel and has a right-hand spiral rod and a left-hand spiral rod installed inside the pipe to turbulent the polymer solution after the addition of additives while avoiding shear loss of the polymer.

[0035] It should be noted that the electric devices on the liquid preparation tank skid S1, the multi-functional skid S2, and the injection pump skid S3 are all connected to the central controller for automatic control, enabling real-time transmission of parameters such as flow rate and pressure to the central controller.

[0036] The working method of this skid-mounted profile control and water shut-off process equipment is described below.

[0037] First, clean water is injected into the clean water tank 1. The clean water enters the mixing pump 5 and the mixing funnel 6 through the first pipeline P1. The outlet of the mixing funnel 6 enters the first release port P21 and the second release port P22 through the second pipeline P2. Thus, the clean water enters the first polymer solution tank 2 and the second polymer solution tank 3. The agitator 4 is then started to stir the mixture in the first polymer solution tank 2 and the second polymer solution tank 3.

[0038] Next, the polymer solutions in the first polymer solution tank 2 and the second polymer solution tank 3 enter the third pipeline P3 through the fourth valve K4 and the sixth valve K6, respectively, and then enter the feeding pump 7. At this time, the dosing pump 8 starts to add the additives, and the spiral mixer 9 turbulents the polymer solution after the additives are added, while avoiding shear loss of the polymer.

[0039] Finally, the spiral mixer 9 is connected to the injection pump skid S3 via the fourth pipeline P4.

[0040] This skid-mounted profile control and water shut-off process equipment integrates all process equipment involved in the construction into three types of skids. Relocation within a 60km range can be completed on the same day, and after relocation, two people can complete construction preparation in one day. During construction, except for the daily centralized preparation of polymers, unmanned operation is possible. The system automatically and in a closed loop adds additives during construction, avoiding frequent contact between personnel and additives, preventing environmental pollution from foaming additives, and effectively reducing HSE risks.

[0041] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application.

Claims

1. A skid-mounted profile control and water plugging process equipment, characterized in that, The skid-mounted profile control and water shut-off process equipment includes a liquid preparation tank skid (S1), a multi-functional skid (S2), and an injection pump skid (S3). The liquid preparation tank skid (S1) includes a water tank (1), a first polymer solution tank (2), and a second polymer solution tank (3). Both the first polymer solution tank (2) and the second polymer solution tank (3) are equipped with a stirrer (4). The bottom of the water tank (1) is equipped with a first valve (K1) and a second valve (K2). The bottom of the first polymer solution tank (2) is equipped with a third valve (K3) and a fourth valve (K4). The bottom of the second polymer solution tank (3) is equipped with a fifth valve (K5) and a sixth valve (K6). The multi-functional skid (S2) includes a liquid preparation unit (S21) and a liquid feeding unit (S22). The liquid preparation unit (S21) includes a liquid preparation pump (5) and a liquid preparation funnel (6). The liquid feeding unit (S22) includes a liquid feeding pump (7), a dosing pump (8), and a spiral mixer (9). The first valve (K1), the third valve (K3), and the fifth valve (K5) are connected to the inlet of the liquid mixing pump (5) via the first pipeline (P1). The outlet of the dispensing funnel (6) is connected to the first release port (P21) and the second release port (P22) via a second pipeline (P2). The first release port (P21) is located above the first polymer solution tank (2), and the second release port (P22) is located above the second polymer solution tank (3). The second valve (K2), the fourth valve (K4), and the sixth valve (K6) are connected to the inlet of the feeding pump (7) via a third pipeline (P3). The outlet of the spiral mixer (9) is connected to the injection pump skid (S3) via a fourth pipeline (P4).

2. The skid-mounted profile control and water shut-off process equipment according to claim 1, characterized in that, The water tank (1), the first polymer solution tank (2), and the second polymer solution tank (3) are welded from steel plates.

3. The skid-mounted profile control and water shut-off process equipment according to claim 1, characterized in that, The mixer (4) is a double-layer paddle mixer.

4. The skid-mounted profile control and water shut-off process equipment according to claim 1, characterized in that, The liquid dispensing pump (5) is a centrifugal pump, the liquid feeding pump (7) is a single screw pump, the injection pump skid (S3) is a three-cylinder plunger reciprocating pump, and the dosing pump (8) is a stainless steel single plunger metering pump.

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