Multifunctional flow simulation verification device

Abstract

The utility model discloses a multifunctional flow simulation verification device which comprises a water tank, an oil well simulation tubular column and a water pumping assembly. The oil well simulation tubular column penetrates through the water tank, an oil sleeve annulus of the oil well simulation tubular column is communicated with the water tank, an oil pipe of the oil well simulation tubular column is communicated with the water pumping assembly, and the water pumping assembly is communicated with the water tank. According to the utility model, the water tank design is provided, the flow calibration does not depend on an external water source, and the miniaturization of the device is realized; the design that the oil well simulation tubular column penetrates through the water tank achieves ground radiation protection of the radioactive flow instrument, and the problem of ground verification of the radioactive flow instrument is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield detection equipment technical field, and specifically is a multifunctional flow simulation calibration device. BACKGROUND

[0002] Flow instrument in oilfield dynamic monitoring field is mainly used for injection and production profile test of oil-water well, and the instrument types used mainly have turbine flow, ultrasonic flow, electromagnetic flow and radioactive flow instrument, and downhole flow test has wide application in oilfield dynamic monitoring field. Since there is no corresponding flow detection equipment on site, when the instrument encounters failure or abnormality in use, it is difficult to quickly judge the failure cause, resulting in instrument testing with illness, which affects the quality of test data.

[0003] Announcement number: CN110965971B discloses a water injection well annular simulation device, which is composed of a water inlet pipeline, a simulation wellbore, a reflux pipeline and a simulation formation pipeline. By injecting high-pressure fluid into the simulation wellbore equipped with an intelligent water distributor, the actual working condition of the intelligent water distributor in the well is simulated, and the pressure and flow parameters of the water nozzle of the water distributor are collected. The pressure and flow signals uploaded by the water distributor are compared with the pressure and flow signals obtained by the test bench.

[0004] The prior art cannot be used for flow test of radioactive flow instrument.

[0005] Announcement number: CN210178344U discloses a ground simulation test device for downhole instrument, which comprises a horizontal base supported by a support and grounded, a base center hole is arranged at the center of the horizontal base, a circular guide rail coaxial with the base center hole is arranged on the outer periphery of the upper end of the base center hole, a cylindrical sleeve is arranged on the outer periphery of the circular guide rail, the cylindrical sleeve can rotate around the circular guide rail, a test oil pipe is inserted into the inner cavity of the cylindrical sleeve, the test oil pipe is supported on the inner wall of the cylindrical sleeve through an oil pipe support rod, the axis of the oil pipe support rod is perpendicular to the center line of the test oil pipe and extends along the diameter of the cylindrical sleeve, and the two ends of the oil pipe support rod are fixed on the wall of the cylindrical sleeve through oil pipe support rod bearings. A test pulley is installed on the upper end of the test oil pipe, and a downhole tool is installed on the lower end of the test oil pipe. The test bench can simulate various states of the downhole wellbore and downhole tool, and provide ground test for various downhole instruments before downhole.

[0006] The prior art cannot be used for flow test of radioactive flow instrument.

[0007] The utility model discloses an online calibrator and calibration method for oilfield high-pressure water injection well flowmeter, including pulse receiver and PLC controller, pulse receiver is connected with PLC controller communication, water circulation module includes water tank, water pump, regulating valve, standard flowmeter and the flowmeter of being calibrated, and is connected in proper order and forms a closed liquid medium flow string circuit, and the flowmeter of being calibrated is connected with pulse receiver, and the precision grade of standard flowmeter is higher than the corresponding flowmeter of being calibrated of being calibrated, motor, motor is connected through control signal line with PLC controller, and motor drives water pump start -stop. The flowmeter of being calibrated is connected on the flowmeter of being calibrated connection interface, can realize the automation of flowmeter of being calibrated online field calibration.

[0008] The prior art cannot be used for flow testing of radioactive flow instruments.

[0009] In summary, the technical solutions of the above disclosed technologies, the technical problems to be solved and the beneficial effects produced are all different from those of the utility model. The above disclosed technology documents do not have technical inspiration for more technical features and technical problems to be solved and beneficial effects of the utility model. Utility model content

[0010] In view of the above defects in the prior art, the utility model aims to provide a multifunctional flow simulation calibration device.

[0011] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0012] A multifunctional flow simulation calibration device, comprising a water tank, further comprising an oil well simulation pipe column and a water pumping assembly, the oil well simulation pipe column penetrates the water tank, the oil jacket annulus of the oil well simulation pipe column is in communication with the water tank, the oil pipe of the oil well simulation pipe column is in communication with the water pumping assembly, and the water pumping assembly is in communication with the water tank.

[0013] Further, the oil well simulation pipe column comprises a casing pipe and an oil pipe.

[0014] Specifically, one end of the casing pipe is closed, and the other end is provided with an oil pipe sealing socket.

[0015] Specifically, the oil pipe is inserted into the casing pipe from the oil pipe sealing socket, one end of the oil pipe in the casing pipe is open, and the other end of the oil pipe outside the casing pipe is provided with an instrument sealing socket, and the instrument sealing socket is used to connect an instrument.

[0016] Specifically, the casing pipe and the oil pipe form an oil jacket annulus.

[0017] Further, a first manifold is arranged between the oil pipe sealing socket and the water tank, and the first manifold is in communication with the water tank.

[0018] Further, the part of the oil pipe outside the casing pipe is provided with a second manifold, the second manifold is communicated with the water tank, and the second manifold is provided with a water pump assembly.

[0019] Further, the first manifold is connected with the upper end of the water tank.

[0020] Further, the second manifold is connected with the lower end of the water tank.

[0021] Further, the water pump assembly comprises a valve, a water pump, a frequency converter and a flow meter.

[0022] Specifically, the valve, the water pump and the flow meter are arranged on the second manifold, and the frequency converter is connected with the water pump and used for controlling the working rate of the water pump.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The water tank type design is self-provided, the flow verification does not depend on external water source, and the device miniaturization is realized; the water tank design of the oil well simulation pipe column realizes the ground radiation protection of the radioactive flow instrument, and solves the ground verification problem of the radioactive flow instrument.

[0025] 2. The frequency converter is used for adjusting the flow, the accurate control of the flow adjustment is realized, and the verification demand of various flow instruments is met.

[0026] 3. The utility model can meet the flow verification of various dynamic monitoring instruments in the existing oil field, including but not limited to various flow test methods such as turbine, ultrasonic, electromagnetic and radioactivity, and has strong technical adaptability.

[0027] 4. The utility model is simple in operation, high in detection efficiency and low in processing cost, and the flow detection is not limited by external environment. DRAWINGS

[0028] Figure 1 It is a structural schematic view of a multifunctional flow simulation verification device.

[0029] In the drawing: 1 water tank; 2 valve; 3 water pump; 4 frequency converter; 5 flow meter; 61 first manifold; 62 second manifold; 7 oil pipe; 8 casing pipe; 9 instrument. CONCRETE IMPLEMENTING METHOD

[0030] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection range of the utility model.

[0031] Embodiment 1:

[0032] Please refer to Figure 1 The multifunctional flow simulation and verification device provided by the embodiment comprises a water tank 1, an oil well simulation pipe column is arranged through the water tank 1, the oil well simulation pipe column comprises a casing 8 and a tubing 7, one end of the casing 8 is closed, and the other end is provided with a tubing sealing socket, the tubing 7 is inserted into the casing 8 from the tubing sealing socket, one end of the tubing 7 in the casing 8 is open, the other end of the tubing 7 outside the casing 8 is provided with an instrument sealing socket, and the instrument sealing socket is used to connect an instrument 9; a first manifold 61 is arranged between the tubing sealing socket and the water tank 1, the first manifold 61 is communicated with the water tank 1, a part of the tubing 7 outside the casing 8 is provided with a second manifold 62, the second manifold 62 is communicated with the water tank 1, and a pump water assembly is arranged on the second manifold 62.

[0033] Specifically, the first manifold 61 is connected with the upper part of the water tank 1, and the second manifold 62 is connected with the lower part of the water tank 1.

[0034] Specifically, the pump water assembly comprises a valve 2, a water pump 3, a frequency converter 4 and a flowmeter 5, the valve 2, the water pump 3 and the flowmeter 5 are arranged on the second manifold 62, and the frequency converter 4 is connected with the water pump 3 and used to control the working rate of the water pump 3.

[0035] Specifically, the first manifold 61 is connected with the water tank 1 through a sealing threaded connection, and the first manifold 61 is connected with a sealing threaded pipe joint welded on the casing 8.

[0036] Specifically, the valve 2, the water pump 3 and the flowmeter 5 are connected in series on the second manifold 62 through sealing threaded pipe joints, the second manifold 62 is connected with the water tank 1 through a sealing threaded connection, and the second manifold 62 is connected with a sealing threaded pipe joint welded on the tubing 7.

[0037] Specifically, the tubing sealing socket is provided with a plurality of rubber rings or packing pressing mechanisms on the inner wall of the end of the casing 8, the instrument sealing socket is provided with a plurality of sealing rings or packing pressing mechanisms on the inner wall of the end of the tubing 7, the packing pressing mechanisms are prior art, and those skilled in the art are clear about this, so the description is omitted.

[0038] This device does not rely on an external water source, providing a continuous water supply to the process through its self-contained water tank 1; the flow rate is adjusted by regulating the speed of the water pump 3 through the frequency converter 4, and the technical indicators such as the start-up flow rate and maximum flow rate of various flow instruments are evaluated; the downhole water injection string is simulated through the tubing 7 and casing 8, and water circulation is established through the water tank 1, water pump 3 and manifold to simulate the water injection process of the tubing and casing; the water tank 1 is both a water source and a radiation shield to ensure a safe working environment for radioactive flow calibration; through optimized structural design, the device achieves functions such as process sealing and flow instrument calibration.

[0039] Example 2:

[0040] Based on Example 1, this example provides a method for using a multifunctional downhole flow simulation and verification device, including the following steps:

[0041] 1. For example Figure 1 As shown, connect the flow simulation verification device and fill water tank 1 with water before verification;

[0042] 2. Instrument 9 is an ultrasonic flow monitor. Insert the instrument 9 to be tested into the oil pipe 7, and seal the instrument 9 and the oil pipe 7 to ensure no leakage.

[0043] 3. Open valve 2 and power on water pump 3. Water in water tank 1 flows through flow meter 5, through second manifold 62 into oil pipe 7, through the bottom of oil pipe 7 into the annular space of oil pipe sleeve, and through first manifold 61 back into water tank 1, forming a closed loop.

[0044] 4. Adjust the flow rate of water pump 3 using frequency converter 4 to verify the ultrasonic flow monitor at different flow rates.

[0045] Example 3:

[0046] Based on Example 1, this example provides a method for using a multifunctional downhole flow simulation and verification device, including the following steps:

[0047] 1. For example Figure 1 As shown, connect the flow simulation verification device and fill water tank 1 with water before verification;

[0048] 2. Instrument 9 is a radioactive instrument such as an oxygen-activated water flow logging tool. Insert the instrument 9 to be tested into the oil pipe 7 and seal the instrument 9 and the oil pipe 7 to ensure no leakage. Set up an isolation zone within 5 meters around the water tank to prevent unauthorized personnel from entering.

[0049] 3. Open valve 2 and power on water pump 3. Water in water tank 1 flows through flow meter 5, through second manifold 62 into oil pipe 7, through the bottom of oil pipe 7 into the annular space of oil pipe sleeve, and through first manifold 61 back into water tank 1, forming a closed loop.

[0050] 4. Adjusting the flow of the water pump 3 by the frequency converter 4 to realize the flow calibration of the radioactive instrument with different flow.

[0051] In the present application, the parts not discussed in detail, the connection mode of each part in the present application, all belong to the known technology in the technical field. Direct application can be used, and will not be described again.

[0052] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0054] In the description of the present application, the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multifunctional flow simulation calibration device comprising a water tank, characterized in that, The oil well simulation pipe column, the pump water assembly, and the water tank are connected. The oil well simulation pipe column penetrates the water tank, the casing annulus of the oil well simulation pipe column is communicated with the water tank, the oil pipe of the oil well simulation pipe column is communicated with the pump water assembly, and the pump water assembly is communicated with the water tank.

2. The multifunctional flow simulation calibration device according to claim 1, wherein, The oil well simulation pipe column comprises a casing and an oil pipe. One end of the casing is closed, and the other end is provided with an oil pipe sealing socket. The oil pipe is inserted into the casing from the oil pipe sealing socket, one end of the oil pipe in the casing is open, and the other end of the oil pipe outside the casing is provided with an instrument sealing socket for connecting an instrument. The casing and the oil pipe form a casing annulus.

3. The multi-functional flow simulation calibration device of claim 2, wherein, The casing is provided with a first manifold between the oil pipe sealing socket and the water tank, and the first manifold is communicated with the water tank.

4. The multi-functional flow simulation calibration device of claim 2, wherein, The oil pipe is provided with a second manifold outside the casing, the second manifold is communicated with the water tank, and the second manifold is provided with the pump water assembly.

5. The multi-functional flow simulation calibration device of claim 3, wherein, The first manifold is connected with the upper end of the water tank.

6. The multi-functional flow simulation calibration device of claim 4, wherein, The second manifold is connected with the lower end of the water tank.

7. The multi-functional flow simulation calibration device of claim 4, wherein, The pump water assembly comprises a valve, a water pump, a frequency converter, and a flowmeter. The valve, the water pump, and the flowmeter are arranged on the second manifold, and the frequency converter is connected with the water pump to control the working rate of the water pump.

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