Special pressure test device for petroleum downhole operation

Abstract

The utility model discloses a special pressure testing device for petroleum downhole operation, which belongs to the technical field of equipment pressure testing and comprises a movable shell, a pressure testing box is fixedly connected to the top of the movable shell, a pressurizing bin and three pressure testing bins are arranged in the pressure testing box, a pressurizer is fixedly connected to the bottom end in the pressurizing bin, and the three pressure testing bins are fixedly connected to the bottom end of the pressurizing bin. A pressure divider is fixedly connected to the inner side face of the pressurizing bin, the ventilation end of the pressurizer is arranged on the side face of the pressure testing box, and the other ventilation end of the pressurizer is fixedly connected to the ventilation end of the pressure divider. The device has the beneficial effects that by arranging the moving motor, people control the moving motor to operate through an external controller, a first bevel gear is made to rotate, a rotating shaft, a first threaded rod and a second threaded rod can be driven to rotate through a second bevel gear, two movable plates are made to be far away from each other, a wheel frame can be driven to move out of a moving shell through a connecting rod, and the moving motor is driven to move through the wheel frame; and when the device needs to be transferred, people can conveniently move the position of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment pressure testing, and more specifically, to a special device for pressure testing in underground petroleum well operations. Background Art

[0002] Downhole operations are technical means to ensure the normal production of oil and water wells during oil field exploration and development. They mainly include oil and water well maintenance, oil and water well overhaul, oil layer transformation and oil testing. Oil and natural gas buried thousands or tens of thousands of meters underground are precious underground resources. They are important resources indispensable to the country's modernization construction, people's material and cultural life and the development of human civilization. A variety of downhole operation devices are needed to extract oil. In order to ensure the stability of the use of downhole operation devices, a special pressure test device is needed for pre-pressure testing.

[0003] For example, a special device for pressure testing for downhole oil operations disclosed in a Chinese patent document, publication number: CN217717318U, publication date: 2022.11.01, although it solves the problem that it is difficult for a pressure testing container to pressure test different equipment at one time, the device lacks a mobile structure when in use. When it needs to be transported, it is not convenient for people to move the position of the device, which is very inconvenient to use. Therefore, in view of the above problems, a special device for pressure testing for downhole oil operations is proposed. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a special device for testing pressure in underground oil well operations, which has a mobile structure and is convenient for people to move the position of the device during transportation.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides a special device for testing pressure in underground oil well operations, including a movable shell, a pressure test box is fixedly connected to the top of the movable shell, a booster chamber and three pressure test chambers are provided inside the pressure test chamber, a supercharger is fixedly connected to the bottom end of the booster chamber, a pressure divider is fixedly connected to the side of the booster chamber, a vent end of the supercharger is arranged on the side of the pressure test chamber, another vent end of the supercharger is fixedly connected to the vent end of the pressure divider, three connecting pipes are arranged on the other vent end of the pressure divider, the three pressure test chambers are fixedly connected to the vent pipes on one side adjacent to the supercharger, one end of the three connecting pipes is respectively fixedly connected to one end of the three vent pipes, the surfaces of the three connecting pipes are fixedly connected to electric-controlled gas valves, the tops of the three pressure test chambers are fixedly connected to pressure relief valves, the top of the pressure test chamber is fixedly connected to a controller, the movable shell has a plurality of movable shells, and the movable shell has a plurality of movable shells. The top of the moving shell is fixedly connected with a moving motor and two fixed plates, and the output end of the moving motor is fixedly connected with the first bevel gear, and a rotating shaft is rotatably passed through the fixing plate through a bearing, and two ends of the rotating shaft are respectively fixedly connected with the first threaded rod and the second bevel gear, and the first bevel gear and the second bevel gear are meshed with each other. One end of the first threaded rod is fixedly connected with the second threaded rod, and the shaft end of the second threaded rod is rotatably connected to the bearing fixedly connected to the side surface of the moving shell. The surfaces of the first threaded rod and the second threaded rod are both threadedly connected with a movable plate, and the side surface of the moving shell is slidably connected with a wheel frame, and the bottom of the movable plate is movably connected with a connecting rod through a pin shaft, and the bottom of the connecting rod is movably connected to the top of the wheel frame through a pin shaft, and a pressure measuring sensor is fixedly connected to the top of the pressure test chamber, and a second door body is movably connected to the side of the boosting chamber.

[0008] When using a special device for testing pressure in underground oil well operations using the technical solution, a mobile motor is set up and people control the operation of the mobile motor through an external controller to rotate the first bevel gear. The second bevel gear can drive the rotating shaft, the first threaded rod and the second threaded rod to rotate, so that the two movable plates move away from each other. The connecting rod can drive the wheel frame to move out of the mobile shell. When transportation is required, the wheel frame can be used to facilitate people to move the position of the device.

[0009] Furthermore, a vertical plate is fixedly connected to the bottom end of the pressure test chamber, a limiting rod is slidably connected to the side of the vertical plate, and a clamping plate is fixedly connected to one end of the limiting rod.

[0010] Furthermore, a clamping bolt is threadedly connected to the side surface of the vertical plate, one end of the clamping bolt is fixedly connected to a rotating shaft, and one end of the rotating shaft is rotatably connected in a bearing fixedly connected to the side surface of the clamping plate.

[0011] Furthermore, a sponge pad is fixedly connected to the other side surface of the clamping plate and the inner side surface of the pressure test chamber.

[0012] Furthermore, a first door body is movably connected to the front of the pressure test box, a first sealing ring is fixedly connected to the side of the first door body, and a second sealing ring is fixedly connected to the front of the pressure test box.

[0013] Furthermore, two sealing strips are fixedly connected inside the first sealing ring, and three observation windows are opened on the side of the first door body.

[0014] Furthermore, three connecting bolts are fixedly connected to the end surface of the first door body, and three U-shaped connecting plates are fixedly connected to the top of the pressure test box.

[0015] (3) Beneficial effects

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. A special device for testing pressure in underground oil well operations, by setting a mobile motor, people control the mobile motor to run through an external controller, so that the first bevel gear rotates, and the second bevel gear can drive the rotating shaft, the first threaded rod and the second threaded rod to rotate, so that the two movable plates are separated from each other, and the wheel frame can be driven to move out of the mobile shell through the connecting rod. When it is necessary to transport, it is convenient for people to move the position of the device through the wheel frame;

[0018] 2. This is a special device for testing pressure in underground oil wells. By setting a clamping bolt, a clamping plate and a sponge pad, people rotate the clamping bolt and push the clamping plate to move under the limit of the limit rod, so as to clamp and fix the equipment. At the same time, under the action of the sponge pad, the equipment can be buffered when being fixed to prevent damage to the equipment;

[0019] 3. The special device for testing pressure in underground oil well operations can improve the sealing performance between the first door body and the pressure test box by providing the first sealing ring and the second sealing ring, and can improve the sealing performance between the three pressure test chambers by providing two sealing strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model in a front view;

[0022] Figure 2 It is a schematic diagram of the structure of the utility model from the side;

[0023] Figure 3 It is a structural schematic diagram of the front view cross section of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the side cross section of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the mobile motor in the utility model.

[0026] The symbols in the accompanying drawings are:

[0027] 1. Moving shell; 101. Moving motor; 102. First bevel gear; 103. Fixed plate; 104. Rotating shaft; 105. Second bevel gear; 106. First threaded rod; 107. Second threaded rod; 108. Moving plate; 109. Connecting rod; 1010. Wheel frame;

[0028] 2. Pressure test box; 201. Pressure test chamber; 202. Pressurization chamber; 203. Supercharger; 204. Voltage divider; 205. Ventilation pipe; 206. Electric control gas valve; 207. Connecting pipe; 208. Pressure relief valve; 209. Controller; 2010. Pressure sensor; 2011. Vertical plate; 2012. Limit rod; 2013. Clamping plate; 2014. Rotating shaft; 2015. Sponge pad; 2016. First door body; 2017. First sealing ring; 2018. Observation window; 2019. Sealing strip; 2020. Connecting bolt; 2021. U-shaped connecting plate; 2022. Second sealing ring; 2023. Clamping bolt; 2024. Second door body. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the technical scheme in the specific implementation mode of the utility model is clearly and completely described below to further illustrate the utility model. Obviously, the specific implementation mode described is only a part of the implementation mode of the utility model, rather than all styles.

[0030] Example:

[0031] The following is combined with Figure 1-5 The utility model is described in further detail.

[0032] See also Figure 1-5The utility model provides a technical solution: a special device for testing pressure in underground oil wells, comprising a mobile shell 1, a pressure test box 2 is fixedly connected to the top of the mobile shell 1, a pressure test box 2 is provided inside the pressure test box 2, a booster chamber 202 and three pressure test chambers 201 are provided inside the pressure test box 2, a booster 203 is fixedly connected to the bottom end of the booster chamber 202, a voltage divider 204 is fixedly connected to the side of the booster chamber 202, a venting end of the booster 203 is arranged on the side of the pressure test box 2, and another venting end of the booster 203 is fixedly connected to the pressure test box 2. The pressure divider 204 is connected to the ventilation end, and the other ventilation end of the pressure divider 204 is provided with three connecting pipes 207. The three pressure test chambers 201 are fixedly connected to the ventilation pipe 205 on one side adjacent to the supercharger 203. One end of the three connecting pipes 207 is respectively fixedly connected to one end of the three ventilation pipes 205. The surfaces of the three connecting pipes 207 are fixedly connected to the electric control gas valve 206. The tops of the three pressure test chambers 201 are fixedly connected to the pressure relief valve 208. The top of the pressure test chamber 201 is fixedly connected to the controller 206. 9. A moving motor 101 and two fixed plates 103 are fixedly connected to the top of the moving shell 1, and a first bevel gear 102 is fixedly connected to the output end of the moving motor 101. A rotating shaft 104 is rotatably passed through the fixed plate 103 through a bearing. Both ends of the rotating shaft 104 are fixedly connected to a first threaded rod 106 and a second bevel gear 105, respectively. The first bevel gear 102 and the second bevel gear 105 are meshed with each other. One end of the first threaded rod 106 is fixedly connected to a second threaded rod 107, and the axial end of the second threaded rod 107 is rotatably connected to a bearing fixedly connected to the inner side of the moving shell 1. The surfaces of the first threaded rod 106 and the second threaded rod 107 are both threadedly connected to a movable plate 108. A wheel frame 1010 is slidably connected to the inner side of the moving shell 1. A connecting rod 109 is movably connected to the bottom of the movable plate 108 through a pin shaft. The bottom end of the connecting rod 109 is movably connected to the top of the wheel frame 1010 through a pin shaft. The second door body 2024 is movably connected to the side of the booster chamber 202.

[0033] By adopting the above technical solution, by setting up a mobile motor 101, people control the operation of the mobile motor 101 through an external controller 209, so that the first bevel gear 102 rotates, and through the second bevel gear 105, the rotating shaft 104, the first threaded rod 106 and the second threaded rod 107 can be driven to rotate, so that the two movable plates 108 move away from each other, and through the connecting rod 109, the wheel frame 1010 can be driven to move out of the mobile shell 1. Through the wheel frame 1010, when transportation is required, it is convenient for people to move the position of the device.

[0034] See also Figure 3A vertical plate 2011 is fixedly connected to the bottom end of the pressure test chamber 201, and a limit rod 2012 is slidably connected to the side of the vertical plate 2011. One end of the limit rod 2012 is fixedly connected to a clamping plate 2013. A clamping bolt 2023 is threadedly connected to the side of the vertical plate 2011, and one end of the clamping bolt 2023 is fixedly connected to a rotating shaft 2014. One end of the rotating shaft 2014 is rotatably connected to a bearing fixedly connected to the side of the clamping plate 2013. A sponge pad 2015 is fixedly connected to the other side of the clamping plate 2013 and the inner side of the pressure test chamber 201.

[0035] By adopting the above technical solution, by setting the clamping bolt 2023, the clamping plate 2013 and the sponge pad 2015, people rotate the clamping bolt 2023, and under the limit of the limit rod 2012, push the clamping plate 2013 to move, so that the equipment can be clamped and fixed. At the same time, under the action of the sponge pad 2015, buffering can be performed when the equipment is fixed to prevent damage to the equipment.

[0036] See also Figure 1 A first door body 2016 is movably connected to the front of the pressure test box 2, a first sealing ring 2017 is fixedly connected to the side of the first door body 2016, a second sealing ring 2022 is fixedly connected to the front of the pressure test box 2, two sealing strips 2019 are fixedly connected inside the first sealing ring 2017, three observation windows 2018 are opened on the side of the first door body 2016, three connecting bolts 2020 are fixedly connected to the end face of the first door body 2016, and three U-shaped connecting plates 2021 are fixedly connected to the top of the pressure test box 2.

[0037] By adopting the above technical solution, by providing the first sealing ring 2017 and the second sealing ring 2022, the sealing between the first door body 2016 and the pressure test box 2 can be improved, and by providing two sealing strips 2019, the sealing between the three pressure test chambers 201 can be improved.

[0038] The working principle of the utility model is:

[0039] When in use, people move the device to a suitable position and then power on the device. After powering on, people control the mobile motor 101 to operate through the external controller 209, so that the first bevel gear 102 rotates, and the second bevel gear 105 drives the rotating shaft 104, the first threaded rod 106 and the second threaded rod 107 to rotate, so that the two movable plates 108 move away from each other, and the wheel frame 1010 can be driven to rise in the mobile shell 1 through the connecting rod 109, so that the bottom of the mobile shell 1 contacts the ground, so that the device can be supported and placed. After placement, the device can be used;

[0040] When it is necessary to pressure test different equipment, people open the first door body 2016, and then place different equipment in different pressure test chambers 201. After placement, people rotate the clamping bolt 2023, and under the limit of the limit rod 2012, push the clamping plate 2013 to move, so that the equipment can be clamped and fixed. After fixing, the first door body 2016 is closed by the cooperation of the connecting bolt 2020 and the U-shaped connecting plate 2021. Then, people control the operation of the booster 203, the voltage divider 204 and the three electrically controlled gas valves 206 through the controller 209. The booster 203 and the voltage divider 204 are in operation, and multiple pressure test chambers 201 are pressurized through the connecting pipe 207, so that the equipment can be pressure tested. At the same time, the pressure sent to different pressure test chambers 201 is adjusted through the electrically controlled gas valve 206, so that equipment with different pressure requirements can be pressure tested.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A special device for testing pressure in underground oil well operations, comprising a movable shell (1), characterized in that: The top of the mobile shell (1) is fixedly connected to a pressure test box (2), a booster chamber (202) and three pressure test chambers (201) are provided inside the pressure test box (2), a booster (203) is fixedly connected to the bottom of the booster chamber (202), a voltage divider (204) is fixedly connected to the side of the booster chamber (202), a venting end of the booster (203) is arranged on the side of the pressure test box (2), another venting end of the booster (203) is fixedly connected to the venting end of the voltage divider (204), and another venting end of the voltage divider (204) is provided with three connecting pipes. (207), the three pressure test chambers (201) are fixedly connected to a ventilation pipe (205) on one side adjacent to the supercharger (203), one end of the three connecting pipes (207) is fixedly connected to one end of the three ventilation pipes (205), the surfaces of the three connecting pipes (207) are fixedly connected to an electric control air valve (206), the tops of the three pressure test chambers (201) are fixedly connected to a pressure relief valve (208), the top of the pressure test box (2) is fixedly connected to a controller (209), and the top of the movable shell (1) is fixedly connected to a movable motor (101) and two fixed The movable motor (101) is provided with a plate (103), the output end of the movable motor (101) is fixedly connected with a first bevel gear (102), a rotating shaft (104) is rotatably passed through the interior of the fixed plate (103) via a bearing, the two ends of the rotating shaft (104) are respectively fixedly connected with a first threaded rod (106) and a second bevel gear (105), the first bevel gear (102) and the second bevel gear (105) are meshed with each other, one end of the first threaded rod (106) is fixedly connected with a second threaded rod (107), and the shaft end of the second threaded rod (107) is rotatably connected to a fixed side surface of the inner side of the movable housing (1). In the connected bearing, the surfaces of the first threaded rod (106) and the second threaded rod (107) are both threadedly connected with a movable plate (108), the inner side of the movable shell (1) is slidably connected with a wheel frame (1010), the bottom of the movable plate (108) is movably connected with a connecting rod (109) through a pin shaft, and the bottom end of the connecting rod (109) is movably connected to the top of the wheel frame (1010) through a pin shaft, the top of the inner part of the pressure test chamber (201) is fixedly connected with a pressure sensor (2010), and the side of the pressurization chamber (202) is movably connected with a second door body (2024).

2. A special device for testing pressure in underground oil well operations according to claim 1, characterized in that: The bottom end of the pressure test chamber (201) is fixedly connected to a vertical plate (2011), the side of the vertical plate (2011) is slidably connected to a limit rod (2012), and one end of the limit rod (2012) is fixedly connected to a clamping plate (2013).

3. A special device for testing pressure in underground oil well operations according to claim 2, characterized in that: The side surface of the vertical plate (2011) is threadedly connected with a clamping bolt (2023), one end of the clamping bolt (2023) is fixedly connected with a rotating shaft (2014), and one end of the rotating shaft (2014) is rotatably connected in a bearing fixedly connected to the side surface of the clamping plate (2013).

4. A special device for testing pressure in underground oil well operations according to claim 3, characterized in that: The other side surface of the clamping plate (2013) and the inner side surface of the pressure test chamber (201) are both fixedly connected with a sponge pad (2015).

5. The special device for testing pressure in underground oil well operations according to claim 1, characterized in that: The front of the pressure test box (2) is movably connected to a first door body (2016), the side of the first door body (2016) is fixedly connected to a first sealing ring (2017), and the front of the pressure test box (2) is fixedly connected to a second sealing ring (2022).

6. A special device for testing pressure in underground oil well operations according to claim 5, characterized in that: Two sealing strips (2019) are fixedly connected inside the first sealing ring (2017), and three observation windows (2018) are provided on the side of the first door body (2016).

7. A special device for testing pressure in oil wells according to claim 5, characterized in that: The end surface of the first door body (216) is fixedly connected with three connecting bolts (2020), and the top of the pressure test box (2) is fixedly connected with three U-shaped connecting plates (221).

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