CN202031575U - Testing device for units and components of intelligent well - Google Patents

Abstract

The utility model relates to an intelligent well unit and component testing device, which includes a pressurizing device and a high-temperature and high-pressure well shaft. The pressurizing device includes a frequency conversion motor, a pump, a one-way valve, a pilot electromagnetic overflow valve, an oil supply device and an oil injection pipeline. One end of the oil injection pipeline is connected to the outlet of the pump, and the other end is connected to the wellbore. A one-way valve and a pilot electromagnetic overflow valve are installed on the oil injection pipeline; /Pressure sensor, heating jacket, multi-channel test umbilical cable, the upper and lower flanges are sealed at both ends of the cylinder body, the stop valve, temperature/pressure sensor are installed on the upper flange, and the multi-channel test umbilical cable is at one end of the cylinder body Connect the test element, connect the control system at one end outside the cylinder, and wrap the heating jacket outside the cylinder. The utility model is a ground testing device for each unit and component of an intelligent well downhole system, through which the downhole temperature and pressure environment can be simulated, and the functional status of each unit and component can be tested, reducing the risk of going into the well.

Description

An intelligent well unit and component testing device

technical field

The utility model belongs to the field of oil and natural gas drilling and exploitation, and in particular relates to intelligent drilling and completion equipment, in particular to an intelligent well unit and component testing device. The device is used to test the downhole components of the intelligent well to ensure the normal work in the well.

Background technique

Intelligent well completion is a new well completion technology. It can realize the production control of each oil and gas layer downhole through the manipulation on the ground. Production and inter-layer optimization, accelerated production, reduced production costs, realized dynamic adjustment without stopping production, and ultimately increased recovery. Especially for offshore oil and gas fields, it can reduce the corresponding operation risk and operation cost of deep sea operation.

The realization of intelligent completion technology requires a set of corresponding downhole control equipment. Because the temperature and pressure environment in the downhole is different from that on the ground, the equipment or components that can be used normally on the ground may not work normally in the downhole. When the downhole equipment is not in normal use or breaks down, most of the equipment can only be lifted out of the ground for maintenance, and then lowered into the downhole, resulting in an increase in the cost of downhole operations and affecting normal production operations. In order to ensure the normal use of downhole components, it is necessary to simulate a similar downhole environment on the ground, test the downhole components and their components, and work in the well only after they meet the requirements.

Contents of the invention

Aiming at the technical problem that it is necessary to simulate the downhole environment on the ground and test the downhole components and components, the purpose of this utility model is to provide a smart well unit and component testing device, so that it can simulate the downhole environment to the components of the smart well. Conduct pressure and temperature resistance tests.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an intelligent well unit and component testing device, which is characterized in that it includes two parts: a pressurizing device and a high-temperature and high-pressure wellbore, and the pressurizing device includes a frequency conversion motor and a pressure test pump , one-way valve, pilot-operated electromagnetic relief valve, oil supply device and oil injection pipeline, the frequency conversion motor is electrically connected to the pressure test pump, the oil supply device is connected to the oil circuit of the pressure test pump, and one end of the oil injection pipeline is connected to the outlet of the pressure test pump. The other end leads into the high-temperature and high-pressure wellbore, and a check valve and a pilot electromagnetic overflow valve are installed on the oil injection line; the high-temperature and high-pressure wellbore includes a cylinder, an upper flange, a lower flange, a stop valve, a temperature/ The pressure sensor, heating jacket, multi-channel test pipe cable, the upper and lower flanges are sealed and installed on the upper and lower ends of the cylinder respectively, the stop valve and the temperature/pressure sensor are installed on the upper flange, and the oil injection pipeline passes through The upper flange leads into the cylinder, the multi-channel test umbilical cable passes through the upper flange, one end in the cylinder is connected to the test element, the other end outside the cylinder is connected to the control system, and the heating jacket is wrapped in the the outside of the cylinder.

The one-way valve is arranged on the oil injection pipeline at the outlet of the pressure test pump, and the pilot electromagnetic overflow valve is arranged on the oil injection pipeline after the one-way valve.

The heating jacket is wrapped outside the cylinder corresponding to the position of the test element in the cylinder.

The oil supply device is connected with the oil circuit of the pressure test pump through the oil filter.

High-pressure heat transfer oil is injected into the barrel through the oil injection pipeline.

Due to the adoption of the above technical scheme, the utility model has the following advantages: 1. The utility model is a ground testing device for each unit and component of the intelligent well downhole system, through which the downhole temperature and pressure environment can be simulated, and each unit and component of the intelligent well system can be tested. The functional status of the components can be remotely unloaded at the same time, which is safe and economical. 2. Since the intelligent well downhole system is composed of multiple units or components, the device can not only test individual components, but also test the ability of assemblies, which improves the reliability of the intelligent well system and reduces the risk of downhole testing. 3. Due to the small size of the unit test pieces and components in the smart well downhole, the wellbore for unit or component testing is not large, and the test is carried out in this device, which reduces the test cost.

Description of drawings

Fig. 1 is a schematic diagram of an intelligent well unit and component testing device.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

As shown in Figure 1, the device provided by the utility model consists of two parts: a pressurizing device and a high-temperature and high-pressure shaft. The pressurizing device includes a frequency conversion motor 1, a pressure test pump 2, a one-way valve 3, a pilot electromagnetic overflow valve 4, an oil supply device 5 and an oil injection pipeline 6. The pressurizing device injects test medium into the high-temperature and high-pressure wellbore, and provides Provide the required high pressure, and at the same time, the pilot electromagnetic overflow valve 4 realizes remote unloading. The high-temperature and high-pressure wellbore includes a stop valve 7, a temperature/pressure sensor 8, an upper flange 9, a cylinder body 10, a heating jacket 11, and a lower flange 12, providing a high-temperature and high-pressure testing environment for the specimen.

The variable frequency motor 1 drives the pressure test pump 2 to rotate under the control of the frequency converter. The test medium generally uses heat-conducting oil to ensure stable performance at high temperatures, and at the same time, it has no corrosive effect on the test piece and test device. The oil supply device sends the medium oil to the pressure test pump 2 through the oil filter, and then transports it to the outside after passing through the pressure test pump 2, and then enters the oil injection pipeline 6 through the check valve 3, and the oil injection pipeline passes through the upper flange 8 and enters the barrel Body 10. The oil injection pipeline is connected with a pilot electromagnetic overflow valve 4, which can set the system pressure in advance. When the set pressure exceeds the set pressure or at the end of the test or in case of emergency, power is supplied to the solenoid valve on the pilot electromagnetic overflow valve, and the solenoid valve opens , the pilot-operated relief valve controls the pressure of the oil port to drop to zero, the relief valve releases the pressure, and the system releases the pressure to zero.

The upper flange 9 and the lower flange 12 are respectively connected to the upper and lower ends of the cylinder body 10 through bolt seals or other sealing methods. Pass the upper flange 9 and communicate with the inside of the cylinder. The test element 14 is placed in the cylinder body 10, and is hoisted by the multi-channel test umbilical 13, and the other end of the multi-channel test umbilical 5 is connected to an external control system. The heating jacket 11 is wrapped around the outside of the cylinder body 10 , especially at the position corresponding to the test element 14 .

Before the test starts, put the test element 14 into the cylinder, connect the pipes and lines properly, tighten the upper and lower flanges, and open the stop valve 7 on the top of the cylinder to exhaust air. After the air in the cylinder is exhausted, inject high-pressure medium oil into the cylinder body 10 through a pressurizing device, and the cylinder body is heated by a heating jacket 11, which can be an electric heating device, or other heating devices such as a water heating device. The temperature of the medium is transmitted to the computer of the external control system through the temperature/pressure sensor 8, and the computer collects temperature data. When the wellbore temperature is close to the test temperature, suspend heating and oil injection, close the stop valve 7, reduce the speed of the variable frequency motor 1, and slowly inject oil into the cylinder at a small displacement. When the wellbore pressure and temperature reach the test pressure and temperature, the testing of relevant components of the smart well system can begin. After the test is completed, open the pilot electromagnetic overflow valve 4 to release the pressure of the system, open the stop valve 7 at the top of the upper flange, and continue pumping oil, the cooling medium enters the wellbore to replace part of the heat medium, the heat medium circulates back to the oil tank, and then dissipates heat through the radiator . After the wellbore temperature drops to the allowable opening temperature, open the upper flange for the next test.

The smart well downhole components to be tested are placed in the high-pressure wellbore, and the test element 14 is connected to the external control system through the multi-channel test umbilical 13 on the upper flange, and the test element in the wellbore is tested through the external control system. According to the applied signal and the returned hydraulic signal, the working condition and state of the test piece in the wellbore can be determined.

The intelligent downhole system is composed of multiple units or components. After a single test piece or unit passes the test, it is assembled and then the components are tested. After the tests are passed one by one, the downhole test is carried out, which improves the reliability of the intelligent well system and reduces the risk of the downhole test. Since the downhole unit test pieces and components of the smart well are small in size, and the wellbore for unit or component testing is not large, testing in this testing device reduces the test cost.

Claims (9)

1. An intelligent well unit and component testing device is characterized in that: it comprises two parts, a pressurizing device and a high-temperature and high-pressure wellbore, The pressurizing device includes a frequency conversion motor, a pressure test pump, a one-way valve, a pilot electromagnetic overflow valve, an oil supply device and an oil injection pipeline, the frequency conversion motor is electrically connected to the pressure test pump, and the oil supply device is connected to the oil circuit of the pressure test pump One end of the oil injection pipeline is connected to the outlet of the pressure test pump, and the other end is connected to the high-temperature and high-pressure wellbore. A check valve and a pilot electromagnetic overflow valve are installed on the oil injection pipeline; The high-temperature and high-pressure wellbore includes a cylinder body, an upper flange, a lower flange, a stop valve, a temperature/pressure sensor, a heating jacket, and a multi-channel test pipe cable. The upper and lower flanges are respectively sealed and installed on the upper and lower sides of the cylinder end, the stop valve and the temperature/pressure sensor are installed on the upper flange, the oil injection pipeline passes through the upper flange and leads into the cylinder, the multi-channel test umbilical cable passes through the upper flange, and the One end is connected to the test element, the other end outside the cylinder is connected to the control system, and the heating jacket is wrapped around the outside of the cylinder. 2. A kind of intelligent well unit and component testing device as claimed in claim 1, characterized in that: the oil injection pipeline at the outlet of the pressure test pump is provided with the one-way valve, behind the one-way valve The pilot electromagnetic overflow valve is arranged on the oil injection pipeline. 3. An intelligent well unit and component testing device according to claim 1 or 2, characterized in that: the heating jacket is wrapped outside the cylinder corresponding to the position of the testing element in the cylinder. 4. An intelligent well unit and component testing device according to claim 1 or 2, characterized in that the oil supply device is connected to the oil circuit of the pressure test pump through an oil filter. 5. An intelligent well unit and component testing device as claimed in claim 3, wherein the oil supply device is connected to the oil circuit of the pressure test pump through an oil filter. 6. An intelligent well unit and component testing device according to claim 1 or 2, characterized in that: high-pressure heat transfer oil is injected into the barrel through the oil injection pipeline. 7 . The intelligent well unit and component testing device according to claim 3 , wherein high-pressure heat-conducting oil is injected into the barrel through the oil injection pipeline. 8 . 8 . The intelligent well unit and component testing device according to claim 4 , wherein high-pressure heat-conducting oil is injected into the barrel through the oil injection pipeline. 9 . The intelligent well unit and component testing device according to claim 5 , wherein high-pressure heat-conducting oil is injected into the barrel through the oil injection pipeline.

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