Cooling water circulation system of heat conduction oil medium mold temperature controller

Abstract

The utility model relates to a heat conduction oil medium mold temperature controller cooling water circulation system which comprises a reservoir, a water suction pump, a circulation pipeline, a mold temperature controller, a shaft and a cooling water tank, the reservoir is connected with the shaft through the circulation pipeline, and a second stop valve, a sixth stop valve and an eighth stop valve are arranged on the circulation pipeline; the circulating pipeline is connected with tap water through a first branch, the third stop valve and the fourth stop valve are arranged on the first branch, the circulating pipeline is further connected with the mold temperature controller through a second branch, the fifth stop valve is arranged on the second branch, the mold temperature controller is connected with the cooling water tank, and the seventh stop valve is arranged at the front end of the cooling water tank. The water suction pump is connected with the second stop valve in parallel after being connected with the first stop valve in series. According to the utility model, the problem of abnormal operation of the equipment caused by equipment stop during the water cut-off period and sudden water cut-off during the equipment trial period is solved, internal circulation of cooling water is realized, and environmental pollution and water resource waste are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment for simulating oil and gas well environments, and more specifically to a cooling water circulation system for a heat-conducting oil medium mold temperature machine. Background Art

[0002] As oil and gas wells enter the middle and late stages of exploitation, drilling is gradually developing towards deep wells and ultra-deep wells. The formation temperature and pressure are getting higher and higher, which puts higher requirements on downhole equipment. Therefore, it is necessary to test the tools entering the well downhole to simulate the bottom hole environment. The testing center uses a mold temperature controller to circulate and heat the test wellbore, and stabilizes the test wellbore and the medium in the wellbore at the target temperature during the test to simulate the formation temperature of the tool when it is used in the well on site. After the test, the mold temperature controller is used to cool the test wellbore and the medium in the wellbore. The test tool can be removed only after it has cooled to a safe temperature.

[0003] The mold temperature controller heats the thermal oil and uses the heated thermal oil to heat the test wellbore. After the temperature reaches the target temperature, the temperature of the thermal oil is controlled by the heating device and cooling water, and then the temperature of the wellbore is controlled by the thermal oil to stabilize at the target temperature. After the test, the temperature of the thermal oil is lowered by cooling water, and the cooled thermal oil is used to cool the wellbore. The tools in the wellbore can only be removed after the wellbore temperature is lowered to a safe value. The cooling water circulation system uses tap water to cool the mold temperature controller. Once the water supply is cut off, the equipment will stop or the test will fail. Leakage of the thermal oil pipeline will cause pollution of the groundwater pipeline, and a large amount of water resources will be wasted every year. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a cooling water circulation system for a heat transfer oil medium mold temperature controller, which can enable the mold temperature controller to realize heating, heat preservation and cooling functions in a water-off state, solve the problem of abnormal operation of the equipment caused by equipment waiting during water-off period and sudden water outage during equipment trial period, and realize the internal circulation of cooling water, reducing environmental pollution and waste of water resources.

[0005] The technical solution adopted by the utility model to solve the technical problem is: construct a heat transfer oil medium mold temperature machine cooling water circulation system, including a water reservoir, a water pump, a circulation pipeline, a mold temperature machine, a well, a cooling water tank, a first stop valve, a second stop valve, a third stop valve, a fourth stop valve, a fifth stop valve, a sixth stop valve, a seventh stop valve and an eighth stop valve, the water reservoir and the well are connected through a circulation pipeline, and the second stop valve, the sixth stop valve and the eighth stop valve are arranged on the circulation pipeline;

[0006] The circulation pipeline is connected to the tap water through the first branch, the third stop valve and the fourth stop valve are arranged on the first branch, the circulation pipeline is also connected to the mold temperature controller through the second branch, the fifth stop valve is arranged on the second branch, the mold temperature controller is connected to the cooling water tank, and the seventh stop valve is arranged at the front end of the cooling water tank; the water pump and the first stop valve are connected in series and then in parallel with the second stop valve.

[0007] In the above scheme, the water reservoir is an underground water tank.

[0008] In the above solution, the mold temperature controller is also connected to the wellbore.

[0009] In the above scheme, three mold temperature controllers are provided, and the three mold temperature controllers are arranged in parallel.

[0010] The implementation of the heat transfer oil medium mold temperature controller cooling water circulation system of the utility model has the following beneficial effects:

[0011] 1. The capacity of the water reservoir of this utility model is 18.8m 3 , which can meet the water demand of the normal working of the mold temperature controller. At the same time, after the hot water flows into the water reservoir, the water temperature will quickly balance, ensuring the cooling effect of the mold temperature controller;

[0012] 2. The utility model adopts an internal circulation method, which can meet the test requirements under water-off state, reduce equipment downtime, reduce time costs, and ensure the success rate of the test;

[0013] 3. The utility model adopts an internal circulation method. If the heat transfer oil pipeline is broken, the leaked heat transfer oil will flow back to the water reservoir along the circulation pipeline, reducing the environmental pollution rate;

[0014] 4. The utility model adopts an internal circulation method, which can repeatedly utilize the water in the reservoir and reduce the waste of water resources during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0016] Figure 1 It is a structural schematic diagram of a cooling water circulation system of a heat transfer oil medium mold temperature controller of the utility model. DETAILED DESCRIPTION

[0017] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0018] like Figure 1As shown, the cooling water circulation system of the heat transfer oil medium mold temperature controller of the utility model includes a water reservoir 1, a water pump 2, a circulation pipeline 3, a mold temperature controller 4, a wellbore 5, a cooling water tank 6, a first stop valve R1, a second stop valve R2, a third stop valve R3, a fourth stop valve R4, a fifth stop valve R5, a sixth stop valve R6, a seventh stop valve R7 and an eighth stop valve R8.

[0019] The water reservoir 1 and the wellbore 5 are connected through a circulation pipeline 3, and the second stop valve R2, the sixth stop valve R6, and the eighth stop valve R8 are arranged on the circulation pipeline 3. The circulation pipeline 3 is connected to the tap water through the first branch 7, and the third stop valve R3 and the fourth stop valve R4 are arranged on the first branch 7. The circulation pipeline 3 is also connected to the mold temperature controller 4 through the second branch 8, and the fifth stop valve R5 is arranged on the second branch 8. The mold temperature controller 4 is connected to the cooling water tank 6, and the seventh stop valve R7 is arranged at the front end of the cooling water tank 6; the water pump 2 and the first stop valve R1 are connected in series and then connected in parallel with the second stop valve R2.

[0020] Preferably, the water reservoir 1 is an underground water tank with a volume of 18.8m 3 .

[0021] Preferably, the mold temperature controller 4 is also connected to the shaft 5 .

[0022] Preferably, three mold temperature controllers 4 are provided, and the three mold temperature controllers 4 are arranged in parallel.

[0023] The working principle of the utility model is as follows:

[0024] The circulation pipeline 3 has two circulation states, and two cooling water circulation loops can be realized by switching the stop valves. The third stop valve R3, the fourth stop valve R4, the fifth stop valve R5, the sixth stop valve R6, and the seventh stop valve R7 are opened, and the first stop valve R1, the second stop valve R2, and the eighth stop valve R8 are closed. Tap water can be introduced through the position of the fourth stop valve R4 to cool the heat transfer oil medium in the mold temperature controller 4 and the upper part of the wellbore 5, and the cooling water is discharged into the cooling water tank 6 for cooling and external discharge.

[0025] When the water is cut off, the first stop valve R1, the fifth stop valve R5, the sixth stop valve R6, and the eighth stop valve R8 are opened, and the second stop valve R2, the third stop valve R3, the fourth stop valve R4, and the seventh stop valve R7 are closed. The water in the water reservoir 1 can be introduced into the circulation pipeline by the water pump 2 to cool the heat transfer oil medium in the mold temperature controller 4 and the upper part of the wellbore 5. The cooling water flows back to the water reservoir through the eighth stop valve R8 to form an internal circulation.

[0026] The water reservoir 1 can be replenished with water by opening the second stop valve R2, the third stop valve R3, and the fourth stop valve R4, and closing the first stop valve R1, the fifth stop valve R5, and the sixth stop valve R6.

[0027] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A heat transfer oil medium mold temperature controller cooling water circulation system, characterized in that: The invention comprises a water reservoir (1), a water pump (2), a circulation pipeline (3), a mold temperature controller (4), a wellbore (5), a cooling water tank (6), a first stop valve (R1), a second stop valve (R2), a third stop valve (R3), a fourth stop valve (R4), a fifth stop valve (R5), a sixth stop valve (R6), a seventh stop valve (R7) and an eighth stop valve (R8); the water reservoir (1) and the wellbore (5) are connected via the circulation pipeline (3); the second stop valve (R2), the sixth stop valve (R6) and the eighth stop valve (R8) are arranged on the circulation pipeline (3); The circulation pipeline (3) is connected to tap water via a first branch (7); the third stop valve (R3) and the fourth stop valve (R4) are arranged on the first branch (7); the circulation pipeline (3) is also connected to a mold temperature controller (4) via a second branch (8); the fifth stop valve (R5) is arranged on the second branch (8); the mold temperature controller (4) is connected to a cooling water tank (6); and the seventh stop valve (R7) is arranged at the front end of the cooling water tank (6); the water pump (2) and the first stop valve (R1) are connected in series and then connected in parallel with the second stop valve (R2).

2. The heat transfer oil medium mold temperature controller cooling water circulation system according to claim 1 is characterized in that: The water reservoir (1) is an underground water tank.

3. The heat transfer oil medium mold temperature controller cooling water circulation system according to claim 1, characterized in that: The mold temperature controller (4) is also connected to the shaft (5).

4. The heat transfer oil medium mold temperature controller cooling water circulation system according to claim 1, characterized in that: The mold temperature controllers (4) are provided in three units, and the three mold temperature controllers (4) are arranged in parallel.

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