Gas testing and producing device for shale gas well

Abstract

The utility model discloses a shale gas well gas testing and recovery device which comprises a bottom plate, a gas recovery tree, a gas recovery inlet pipe, a gas storage tank, a switch valve, a gas testing inlet pipe and a combustion cylinder are arranged at the top of the bottom plate, a hot water mechanism and a heat pipe mechanism are arranged above the bottom plate, a three-way valve is arranged on the front face of the hot water mechanism, and a main discharge pipe is arranged on one side of the three-way valve. The hot water mechanism comprises an annular water tank, a plurality of heating plates are arranged on the top of the annular water tank in an annular array mode, a water supply pump is arranged on one side of the annular water tank, a water inlet pipe is arranged between the annular water tank and the water supply pump, a thick discharging pipe is arranged on the front face of the annular water tank, and the heat pipe mechanism is composed of a heating sleeve, a thin water pipe and a necking pipe. According to the utility model, the hot water mechanism is arranged, and part of heat generated in the gas testing process can be used for heating cold water through the cooperation of the water supply pump, the water inlet pipe, the annular water tank, the heating plate and the coarse discharge pipe, so that the utilization of natural gas in the gas testing process is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to shale gas mining technical field especially relates to a shale gas well gas testing and gas recovery device. BACKGROUND

[0002] Shale gas is natural gas mined from shale layer, is an important unconventional natural gas resource, shale gas formation and enrichment has the unique feature of itself, often distributes in the basin thickness is bigger, distributes widely shale hydrocarbon source rock stratum, compared with conventional natural gas, shale gas development has the advantage that mining life is long and production cycle is long.

[0003] Air defense combustion test is short for gas testing, is an important detection step before shale gas mining, the commonly used equipment has gas tree, gas pipeline, gas tank and gas testing combustion cylinder etc., in the process of using above equipment to carry out shale gas well gas testing, the heat generated by natural gas combustion cannot be utilized, and a large amount of natural gas resources will be wasted, therefore need a shale gas well gas testing and gas recovery device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model discloses a shale gas well gas testing and gas recovery device to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a shale gas well gas testing and gas recovery device, comprising:

[0006] The bottom plate is provided with a gas tree, a gas inlet pipe, a gas tank, a switch valve, a gas testing inlet pipe and a combustion cylinder on the top;

[0007] The top of the bottom plate is provided with a hot water mechanism and a heat pipe mechanism, the front of the hot water mechanism is provided with a three-way valve, and one side of the three-way valve is provided with a total exhaust pipe;

[0008] The hot water mechanism comprises an annular water tank, a plurality of heating plate pieces are arranged in an annular array on the top of the annular water tank, a water supply pump is arranged on one side of the annular water tank, a water inlet pipe is arranged between the annular water tank and the water supply pump, and a coarse exhaust pipe is arranged on the front of the annular water tank;

[0009] The heat pipe mechanism is composed of a heating sleeve pipe, a fine water pipe and a necked pipe.

[0010] Preferably, the annular water tank is fixedly connected to the top of the bottom plate, the annular water tank is sleeved outside the combustion cylinder, a heat insulation ring is sleeved outside the annular water tank, and one end of the water inlet pipe and the coarse exhaust pipe penetrates the outer wall of the heat insulation ring and is fixedly connected with the outer wall of the annular water tank.

[0011] Preferably, the heating plate member is composed of a U-shaped fixing plate, an inclined plate and an insertion plate, the U-shaped fixing plate is fixedly sleeved at the top of the gas testing combustion cylinder, the inclined plate is fixedly connected to the bottom of the U-shaped fixing plate, and the insertion plate is fixedly connected to the bottom of the inclined plate.

[0012] Preferably, the outer part of the water supply pump is sleeved with a protection box, the protection box is fixedly connected to the top of the bottom plate, the water inlet end and the water outlet end of the water supply pump are respectively penetrated through the two sides of the inner wall of the protection box, and the water outlet end of the water supply pump is fixedly connected with the other end of the water inlet pipe.

[0013] Preferably, the heating sleeve pipe is fixedly sleeved on the outer wall of the gas extraction inlet pipe, one end of the water mist pipe is fixedly penetrated and connected with the outer wall of the heating sleeve pipe, and the other end of the water mist pipe is fixedly connected with one end of the converging pipe.

[0014] Preferably, the other end of the coarse discharge pipe is fixedly connected with the water inlet end of the three-way valve, the other end of the converging pipe is fixedly connected with the water changing end of the three-way valve, and one end of the total discharge pipe is fixedly connected with the water outlet end of the three-way valve.

[0015] Preferably, the outer wall of the heating sleeve pipe is fixedly connected with a mounting block, the outer wall of the heating sleeve pipe is fixedly mounted with a temperature detector through the mounting block, and the detection rod of the temperature detector is fixedly penetrated and connected with the top of the heating sleeve pipe.

[0016] The technical effects and advantages of the present application are as follows:

[0017] (1) The present application sets up a hot water mechanism, and part of the heat generated in the gas testing process can be used for heating cold water through the cooperation of the water supply pump, the water inlet pipe, the annular water tank, the heating plate member and the coarse discharge pipe, thereby increasing the utilization rate of natural gas in the gas testing process.

[0018] (2) The present application sets up a three-way valve and a heat pipe mechanism, and the hot water heated by the heating plate member can be injected into the heating sleeve pipe through the cooperation of the three-way valve, the converging pipe and the water mist pipe, so as to heat the outer wall of the gas extraction inlet pipe, thereby avoiding the blockage of hydrate on the inner wall of the gas extraction inlet pipe in cold weather, and further increasing the utilization rate of natural gas in the gas testing process. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the present application.

[0020] Figure 2 It is a schematic view of the annular water tank of the present application.

[0021] Figure 3 It is a schematic view of the annular water tank of the present application. Figure 1 It is a schematic view of the annular water tank of the present application.

[0022] Figure 4 The utility model discloses a heating plate piece three-dimensional structure schematic view.

[0023] In the drawing: 1, bottom plate, 2, gas production tree, 3, gas production inlet pipe, 4, gas storage tank, 5, switch valve, 6, gas testing inlet pipe, 7, combustion cylinder, 8, hot water mechanism, 801, annular water tank, 802, heating plate piece, 8021, U-shaped fixed plate, 8022, inclined plate, 8023, insertion plate, 803, water supply pump, 804, water inlet pipe, 805, coarse discharge pipe, 9, heat pipe mechanism, 901, heating sleeve pipe, 902, fine water pipe, 903, necking pipe, 10, three-way valve, 11, total discharge pipe, 12, heat insulation ring, 13, protection box, 14, mounting block, 15, temperature detector. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, 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 fall within the protection scope of the utility model.

[0025] The utility model provides a kind of shale gas well gas testing and gas production device as Figures 1-4 As shown in a kind of shale gas well gas testing and gas production device, including bottom plate 1, the top of bottom plate 1 is equipped with gas production tree 2, gas production inlet pipe 3, gas storage tank 4, switch valve 5, gas testing inlet pipe 6 and combustion cylinder 7, the bottom of gas production tree 2 is fixedly inserted with bottom plate 1, and gas production tree 2 is composed of four casing valves, two production total valves, two oil tank valves and a test valve from bottom to top, wherein two production total valves are vertically arranged, the top of gas storage tank 4 and combustion cylinder 7 are fixedly connected to bottom plate 1, and the top of gas storage tank 4 is provided with pressure gauge, one end of gas production inlet pipe 3 is fixedly connected with the test valve of gas production tree 2, and the other end of gas production inlet pipe 3 is fixedly inserted with the outer wall of gas storage tank 4, switch valve 5 is fixedly installed between gas storage tank 4 and gas testing inlet pipe 6, and the top of bottom plate 1 is provided with hot water mechanism 8 and heat pipe mechanism 9, the front of hot water mechanism 8 is provided with three-way valve 10, three-way valve 10 is used to control the flow direction of water, one side of three-way valve 10 is provided with total discharge pipe 11, total discharge pipe 11 is used to discharge hot water, and the hot water can be used by staff daily, one end of total discharge pipe 11 is fixedly connected with the water outlet end of three-way valve 10, hot water mechanism 8 is used to increase the utilization rate of natural gas in the process of gas testing, and heat pipe mechanism 9 is used to heat gas production inlet pipe 3, to avoid the inner wall of gas production inlet pipe 3 from being blocked by hydrate in cold weather, further increasing the utilization rate of natural gas in the process of gas testing.

[0026] The hot water mechanism 8 comprises a ring-shaped water tank 801 sleeved on the outside of the combustion cylinder 7, which is fixedly connected to the top of the bottom plate 1, and the outside of the ring-shaped water tank 801 is sleeved with a heat insulation ring 12 for heat insulation protection. One end of the gas testing inlet pipe 6 penetrates the heat insulation ring 12 and the ring-shaped water tank 801 in sequence and is fixedly connected with the outer wall of the combustion cylinder 7. A plurality of heating plate pieces 802 are arranged in an annular array on the top of the ring-shaped water tank 801, and the number of the heating plate pieces 802 can be changed according to actual needs. The heating plate pieces 802 are made of metal with good heat conduction performance and are composed of a U-shaped fixed plate 8021, an inclined plate 8022 and an insertion plate 8023. The U-shaped fixed plate 8021 is fixedly sleeved on the top of the gas testing combustion cylinder 7, the inclined plate 8022 is fixedly connected to the bottom of the U-shaped fixed plate 8021, and the insertion plate 8023 is fixedly connected to the bottom of the inclined plate 8022 and fixedly connected with the top of the ring-shaped water tank 801. One side of the ring-shaped water tank 801 is provided with a water supply pump 803. When the external switch of the water supply pump 803 is turned on, the water supply pump 803 will pump cold water into the inside of the ring-shaped water tank 801. The outside of the water supply pump 803 is sleeved with a protection box 13 for protection and anti-freezing of the water supply pump 803. The protection box 13 is fixedly connected to the top of the bottom plate 1, and the water inlet end and the water outlet end of the water supply pump 803 penetrate the two sides of the inner wall of the protection box 13. An inlet pipe 804 is arranged between the ring-shaped water tank 801 and the water supply pump 803. One end of the inlet pipe 804 penetrates the outer wall of the heat insulation ring 12 and is fixedly connected with the outer wall of the ring-shaped water tank 801, and the other end of the inlet pipe 804 is fixedly connected with the water outlet end of the water supply pump 803. The front of the ring-shaped water tank 801 is provided with a coarse discharge pipe 805. One end of the coarse discharge pipe 805 penetrates the outer wall of the heat insulation ring 12 and is fixedly connected with the outer wall of the ring-shaped water tank 801, and the other end of the coarse discharge pipe 805 is fixedly connected with the water inlet end of the three-way valve 10.

[0027] The hot pipe mechanism 9 is composed of a heating sleeve pipe 901, a fine water pipe 902 and a necked pipe 903. The heating sleeve pipe 901 is fixedly sleeved on the outer wall of the gas inlet pipe 3. One end of the fine water pipe 902 is fixedly connected with the outer wall of the heating sleeve pipe 901, the other end of the fine water pipe 902 is fixedly connected with one end of the necked pipe 903, and the other end of the necked pipe 903 is fixedly connected with the water changing end of the three-way valve 10. The necked pipe 903 is used to connect the small-diameter fine water pipe 902 and the water changing end of the three-way valve 10 together. When the temperature in the heating sleeve pipe 901 is moderate, the total discharge pipe 11 and the water inlet end of the water supply pump 803 are connected with the water storage tank, then the coarse discharge pipe 805 and the total discharge pipe 11 are communicated through the three-way valve 10, and finally the external switch of the water supply pump 803 is turned on to realize water circulation heating.

[0028] The outer wall of the heating sleeve pipe 901 is fixedly connected with a mounting block 14, and the outer wall of the heating sleeve pipe 901 is fixedly installed with a temperature detector 15 through the mounting block 14, the model of the temperature detector 15 is TM902C, the temperature detector 15 is used for detecting the temperature of water in the heating sleeve pipe 901, and the detection rod of the temperature detector 15 is fixedly and penetratingly connected with the top of the heating sleeve pipe 901.

[0029] Principle of the utility model:

[0030] When shale gas well testing is carried out, first, the coarse discharge pipe 805 and the fine water pipe 902 are communicated through the three-way valve 10, then the external switch of the water supply pump 803 is opened, cold water is pumped into the inside of the annular water tank 801 through the water supply pump 803, when the annular water tank 801 and the heating sleeve pipe 901 are filled with cold water, the external switch of the water supply pump 803 is closed, as the gas testing time elapses, the plurality of heating plate pieces 802 guide part of the heat generated by the combustion cylinder 7 into the inside of the annular water tank 801, so that the cold water is heated, in the heating process, because the heating sleeve pipe 901 and the annular water tank 801 are in communication, the water temperature in the heating sleeve pipe 901 also gradually rises, when the temperature detected by the temperature detector 15 is too high, the total discharge pipe 11 is communicated with the coarse discharge pipe 805 through the three-way valve 10, then the external switch of the water supply pump 803 is opened again to pump new cold water to reduce the water temperature, the hot water in the heating sleeve pipe 901 can be discharged by adjusting the three-way valve 10 to communicate the total discharge pipe 11 with the fine water pipe 902, or the three-way valve 10 is adjusted to communicate the coarse discharge pipe 805 with the fine water pipe 902, cold water is added to reduce the temperature, and the hot water discharged through the total discharge pipe 11 can be used by workers daily, and the utilization rate of natural gas in the gas testing process is increased.

[0031] Finally, it should be noted that: the above only for preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A shale gas well testing and production device, comprising: The bottom plate (1) is provided with a gas sampling tree (2), a gas sampling inlet pipe (3), a gas storage tank (4), a switch valve (5), a test gas inlet pipe (6), and a combustion cylinder (7) on its top. The feature is that a hot water mechanism (8) and a heat pipe mechanism (9) are provided above the base plate (1), a three-way valve (10) is provided on the front of the hot water mechanism (8), and a main drain pipe (11) is provided on one side of the three-way valve (10); The hot water mechanism (8) includes an annular water tank (801), the top of the annular water tank (801) is provided with a plurality of heating plates (802) arranged in a ring array, a water supply pump (803) is provided on one side of the annular water tank (801), an inlet pipe (804) is provided between the annular water tank (801) and the water supply pump (803), and a coarse pipe (805) is provided on the front of the annular water tank (801). The heat pipe mechanism (9) consists of a heating sleeve (901), a thin water pipe (902), and a constricted pipe (903).

2. The shale gas well testing and production device according to claim 1, characterized in that, The annular water tank (801) is fixedly connected to the top of the base plate (1). The annular water tank (801) is sleeved on the outside of the combustion cylinder (7). A heat insulation ring (12) is sleeved on the outside of the annular water tank (801). One end of the water inlet pipe (804) and the coarse pipe (805) both penetrate the outer wall of the heat insulation ring (12) and are fixedly inserted and connected to the outer wall of the annular water tank (801).

3. The shale gas well testing and production device according to claim 1, characterized in that, The heating plate (802) is composed of a U-shaped fixing plate (8021), an inclined plate (8022), and an insertion plate (8023). The U-shaped fixing plate (8021) is fixedly sleeved on the top of the test gas combustion cylinder (7). The inclined plate (8022) is fixedly connected to the bottom of the U-shaped fixing plate (8021). The insertion plate (8023) is fixedly connected to the bottom of the inclined plate (8022). The insertion plate (8023) is fixedly inserted and connected to the top of the annular water tank (801).

4. A shale gas well testing and production device according to claim 1, characterized in that, The water supply pump (803) is fitted with a protective box (13), which is fixedly connected to the top of the base plate (1). The water inlet and outlet of the water supply pump (803) pass through the two sides of the inner wall of the protective box (13), and the water outlet of the water supply pump (803) is fixedly connected to the other end of the water inlet pipe (804).

5. A shale gas well testing and production device according to claim 1, characterized in that, The heating sleeve (901) is fixedly sleeved on the outer wall of the gas intake pipe (3), one end of the thin water pipe (902) is fixedly inserted into the outer wall of the heating sleeve (901), and the other end of the thin water pipe (902) is fixedly connected to one end of the constricted pipe (903).

6. A shale gas well testing and production device according to claim 1, characterized in that, The other end of the coarse drain pipe (805) is fixedly connected to the inlet end of the three-way valve (10), the other end of the constricted pipe (903) is fixedly connected to the water exchange end of the three-way valve (10), and one end of the main drain pipe (11) is fixedly connected to the outlet end of the three-way valve (10).

7. A shale gas well testing and production device according to claim 1, characterized in that, An installation block (14) is fixedly connected to the outer wall of the heating sleeve (901). A temperature detector (15) is fixedly installed on the outer wall of the heating sleeve (901) through the installation block (14). The detection rod of the temperature detector (15) is fixedly inserted and connected to the top of the heating sleeve (901).

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