Slurry circulating purification device for hydrogeological exploration

Abstract

The invention discloses a mud circulating purification device for hydrogeological exploration, and relates to the technical field of mud purification. Comprising a circulating mounting part, and a suction connecting part is mounted on the circulating mounting part and used for flocculating and purifying drilling water; an anti-winding detection piece is mounted on the circulating mounting piece; the anti-winding detection piece is used for preventing the suction connecting piece from winding the circulating mounting piece; a closed water outlet test piece is mounted on the circulating mounting piece; the problems that an existing hydrogeological exploration slurry circulating and purifying device is inconvenient to advance along with a drill bit for purifying and sampling, is inconvenient to automatically prevent winding and is also inconvenient to prevent blowout and suction are solved. By adopting the anti-winding detection piece, the high-speed rotary drilling of the drill rod is not influenced while the suction connecting piece samples the well bottom in real time, and meanwhile, the suction pipe at the bottom of the drill rod can be prevented from being excessively abraded or wound on the outer side of the drill rod under the rotating friction of the drill rod.

Description

Technical Field

[0001] The invention relates to the technical field of mud purification, in particular to a hydrogeological exploration mud circulation purification device. Background Art

[0002] With the global attention paid to environmental protection and sustainable development, low-carbon mining has become an important development direction of the geological exploration industry. Low-carbon mining requires minimizing energy consumption, reducing greenhouse gas emissions, and realizing efficient recycling of resources during resource exploration. In actual oil and gas extraction work, hydrogeological exploration is required first. Therefore, it is usually necessary to use a drill bit to drill holes and sample the soil and drilling water for subsequent testing to better apply it to low-carbon mining. The main purpose of drilling includes obtaining underground rock formation information, determining aquifer parameters, and evaluating the geological environment. In order to ensure the water intake and water quality sampling, a larger diameter drill bit is usually required, and it is usually necessary to separate the mud and sand in the mud and sample them separately.

[0003] At present, the mud circulation purification device for hydrogeological exploration usually samples the mud overflowing from the wellbore. However, a large amount of soil in this part of the mud is precipitated, which affects the accuracy of the sample and is not convenient for purification and sampling as the drill bit moves forward. The method of directly inserting the sampling tube into the bottom of the well is prone to friction, entanglement or wear when the drill pipe rotates, which is not convenient for automatic anti-entanglement. At the same time, it is also not convenient for staff to locate the aquifer in real time. The seepage point is difficult to observe with the naked eye, and it is not convenient to prevent blowout suction, and the safety is poor.

[0004] Therefore, we propose a hydrogeological exploration mud circulation purification device. Summary of the invention

[0005] The purpose of the present invention is to provide a hydrogeological exploration mud circulation purification device to solve the problems raised in the above background technology that the current hydrogeological exploration mud circulation purification device is not convenient for purification and sampling as the drill bit moves forward, is not convenient for automatic anti-entanglement, and is not convenient for anti-blowout suction.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydrogeological exploration mud circulation purification device, comprising a circulation installation, a suction connection piece is installed on the circulation installation, and the suction connection piece is used for flocculation and purification of drilling water; an anti-winding detection piece is installed on the circulation installation; the anti-winding detection piece is used to prevent the suction connection piece from winding around the circulation installation; a closed water outlet test piece is installed on the circulation installation; the closed water outlet test piece is used to fit the well wall; a pressure prompt piece is installed on the closed water outlet test piece; a wellhead blowout preventer is installed on the circulation installation; the wellhead blowout preventer is used to close the exploration wellhead; an injection detection piece is installed on the wellhead blowout preventer; the injection detection piece is used to control the suction of well fluid; the circulation installation comprises: a drill pipe and a rotary sleeve, the outer side of the drill pipe is fixedly sleeved with a rotary sleeve; the outer side of the rotary sleeve is provided with a circle of meshing teeth.

[0007] Preferably, the circulation mounting part also includes: a rotating ring and a driving motor, the rotating ring is rotatably mounted on the rotating sleeve; a rubber ring is provided on the outside of the rotating ring; the rubber ring on the outside of the rotating ring is used to fit the well wall; the driving motor is fixedly mounted on the rotating ring; a gear is fixedly mounted on the output shaft of the driving motor, and the gear on the output shaft of the driving motor meshes with the meshing teeth on the rotating sleeve.

[0008] Preferably, the suction connection comprises: a suction pipe, a bellows, a power connection plate, a suction pump, a flocculation liquid supply pipe and a liquid supply pump, the suction pipe is fixedly mounted on the rotating circle; a bellows is provided in the middle section of the suction pipe; the suction pipe is a soft structure; two power connection plates are fixedly embedded on the suction pipe; the suction pump is fixedly connected to the suction pipe; a flocculation liquid supply pipe is fixedly mounted on the suction pipe, and the flocculation liquid supply pipe is located on the inner side of the suction pipe; the liquid supply pump is fixedly mounted on the flocculation liquid supply pipe; the liquid supply pump is used for supplying flocculant; a valve is provided on the flocculation liquid supply pipe; the drainage pipe of the suction pump is externally connected to a water storage tank; the liquid supply pump is externally connected to a flocculant tank.

[0009] Preferably, the anti-winding detection component includes: an anti-winding detection frame and a power-connecting spring sheet, the anti-winding detection frame is fixedly mounted on the rotating circle by two legs; the suction tube is located inside the anti-winding detection frame; two power-connecting spring sheets are fixedly mounted on the inside of the anti-winding detection frame; the two power-connecting spring sheets are respectively located on both sides of the two power-connecting sheets; the power-connecting spring sheets and the power-connecting sheets on the same side are respectively connected in series with the driving motor power supply, and the power-connecting spring sheets and the power-connecting sheets on the same side are a group, and the power-connecting directions of the two groups of power-connecting spring sheets and the power-connecting sheets are opposite.

[0010] Preferably, the closed water outlet test piece includes: a closed shell, an isolation net, a pressure supply pipe and a pressure supply air pump, the closed shell is fixedly sleeved on the rotating circle; two isolation nets are fixedly embedded on the closed shell; the closed shell is fixedly connected to the pressure supply pipe; the pressure supply pipe is connected to the pressure supply air pump; the closed shell is sleeved on the drill rod; the suction pipe passes through the closed shell.

[0011] Preferably, the closed water outlet test piece also includes: an expansion airbag and a discharge pipe, two expansion airbags are fixedly sleeved on the closed shell; the inner sides of the two expansion airbags are respectively connected to the pressure supply pipes; the two expansion airbags are respectively used to expand and fit the well wall; two discharge pipes are fixedly installed on the closed shell, and the two discharge pipes are respectively fixedly sleeved on the rotating circle; the discharge pipes are used to conduct well fluid.

[0012] Preferably, the pressure prompt component includes: a pressure detection seat, a pressure sensor and a pressure piston, the pressure detection seat is fixedly installed on the closed shell; a pressure sensor is fixedly installed on the bottom of the pressure detection seat; the pressure piston is slidably inserted in the closed shell; a spring is provided between the pressure detection seat and the pressure piston; the end of the pressure sensor is attached to the pressure piston; and the pressure sensor is externally connected to a display.

[0013] Preferably, the wellhead blowout preventer includes: a closing column, an anchor hole, a limit plate and a circulating pump, the closing column is sleeved on the drill pipe, and a gap is provided between the closing column and the outside of the drill pipe; the suction pipe and the pressure supply pipe pass through the closing column respectively; three anchor holes are provided on the closing column; the three anchor holes are used to insert anchor rods respectively; a limit plate is fixedly installed on the closing column; a circulating pump is installed on the closing column, and a valve is provided on the liquid inlet pipe of the circulating pump.

[0014] Preferably, the injection detection component comprises: a lifting mounting frame and a lifting shaft, the lifting mounting frame is fixedly mounted on the closed column; the lifting shaft is slidably mounted on the lifting mounting frame; and a circle of through holes is provided on the lifting mounting frame.

[0015] Preferably, the injection detection component also includes: a switch and a propulsion cover, the switch is electrically connected to the suction pump; the switch is fixedly installed on the lifting shaft; the switch is located below the limit plate; the propulsion cover is fixedly installed at the bottom of the lifting shaft; the propulsion cover is a conical structure; a spring is connected between the propulsion cover and the lifting mounting frame; the propulsion cover is located inside the closed column.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention adopts a suction connection piece to realize direct suction of the drilled mud as the drilling depth continues to decrease, which can avoid the problems of poor accuracy of mud content in the mud extracted by the traditional method of suction at the wellhead and mud sedimentation in the bottom of the well. The sedimented mud will also cause greater wear resistance to the drill bit. The use of an anti-winding detection piece can ensure that the suction connection piece can sample the bottom of the well in real time without affecting the high-speed rotation drilling of the drill pipe. At the same time, it can prevent the suction pipe at the bottom of the drill pipe from excessively wearing or being entangled on the outside of the drill pipe due to the rotation friction of the drill pipe, causing hidden dangers such as the suction pipe breaking. The present structure can utilize the characteristic that the suction pipe will become skewed when it is driven by the drill pipe to be twisted, and can directly perform reverse rotation adaptation.

[0018] The pressure prompt piece can be used in conjunction with the closed water outlet test piece to detect the water seepage layer, which can facilitate real-time detection by the staff. There is no need to discharge the mud in the borehole. The prompt can be given directly to prevent the problem of borehole collapse caused by discharging too much mud in the borehole to check the seepage location. At the same time, it significantly reduces the energy consumption and carbon emissions in the mud treatment process, and promotes geological exploration to develop in a low-carbon and green direction. When the closed water outlet test piece rotates in the normal rotating circle, there is a gap between the closed shell and the borehole, which will not damage the well wall and avoid the well wall from collapsing due to friction.

[0019] The use of injection detection components can be used for anti-blowout drainage control work. This structure has direct detection and can quickly control the suction pump to perform auxiliary suction work. During a blowout, high-pressure fluid suddenly gushes out and may directly impact on-site personnel. If the ejected fluid carries sand, gravel or rock chips, it may damage equipment such as drilling rigs and wellhead devices. Blowouts cause the pressure in the borehole to get out of control, making it impossible to accurately determine the permeability coefficient of the aquifer. This structure can improve the accuracy of formation parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a hydrogeological exploration mud circulation purification device of the present invention;

[0021] Figure 2 This is a cross-sectional view of the internal structure of a hydrogeological exploration mud circulation purification device of the present invention;

[0022] Figure 3 This is a schematic diagram of the installation position of the closed water outlet test piece of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the suction connector of the present invention;

[0024] Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle E region;

[0025] Figure 6 This is a schematic diagram of the structure of the circulation installation member of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the anti-winding detection component of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the closed water outlet test piece of the present invention;

[0028] Fig. 9 For the present invention Figure 2 A magnified view of the structure of the middle C region;

[0029] Fig.10 This is a schematic diagram of the structure of the wellhead blowout preventer of the present invention;

[0030] Fig.11 For the present invention Fig.10 A magnified view of the structure in region D.

[0031] In the figure: 1. Circulation installation part; 101. Drill rod; 102. Rotary sleeve; 103. Rotary circle; 104. Driving motor; 2. Suction connection part; 201. Suction pipe; 202. Bellows; 203. Power connection sheet; 204. Suction pump; 205. Flocculation liquid supply pipe; 206. Liquid supply pump; 3. Anti-winding detection part; 301. Anti-winding detection frame; 302. Power connection spring; 4. Closed water outlet test part; 401. Closed shell; 4011. Isolation Net; 402, pressure supply pipe; 403, pressure supply air pump; 404, inflation air bag; 405, discharge pipe; 5, pressure prompt piece; 501, pressure detection seat; 502, pressure sensor; 503, pressure piston; 6, wellhead blowout preventer; 601, closing column; 602, anchor hole; 603, limit plate; 604, circulation pump; 7, injection detection piece; 701, lifting mounting frame; 702, lifting shaft; 703, switch; 704, propulsion cover. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1 to 11 As shown:

[0034] The present invention provides a technical solution: a hydrogeological exploration mud circulation purification device, comprising a circulation installation part 1, a suction connection part 2 is installed on the circulation installation part 1, and the suction connection part 2 is used for flocculation and purification of drilling water; an anti-winding detection part 3 is installed on the circulation installation part 1; the anti-winding detection part 3 is used to prevent the suction connection part 2 from winding around the circulation installation part 1; a closed water outlet test part 4 is installed on the circulation installation part 1; the closed water outlet test part 4 is used to fit the well wall; a pressure prompt part 5 is installed on the closed water outlet test part 4; a wellhead blowout preventer 6 is installed on the circulation installation part 1; the wellhead blowout preventer 6 is used to close the exploration wellhead; an injection detection part 7 is installed on the wellhead blowout preventer 6; the injection detection part 7 is used to control the suction of well fluid; the circulation installation part 1 comprises: a drill pipe 101 and a rotary sleeve 102, the outer side of the drill pipe 101 is fixedly sleeved with the rotary sleeve 102; the outer side of the rotary sleeve 102 is provided with a circle of meshing teeth.

[0035] The circulation installation part 1 further includes: a rotating ring 103 and a driving motor 104. The rotating ring 103 is rotatably installed on the rotating sleeve 102; a rubber ring is arranged on the outer side of the rotating ring 103; the rubber ring on the outer side of the rotating ring 103 is used to fit the well wall; the driving motor 104 is fixedly installed on the rotating ring 103; a gear is fixedly installed on the output shaft of the driving motor 104, and the gear on the output shaft of the driving motor 104 meshes with the gear on the rotating sleeve 102 The suction connection member 2 comprises: a suction pipe 201, a bellows 202, a power connection sheet 203, a suction pump 204, a flocculation liquid supply pipe 205 and a liquid supply pump 206. The suction pipe 201 is fixedly mounted on the rotary circle 103; a bellows 202 is provided in the middle of the suction pipe 201; the suction pipe 201 is a soft structure; two power connection sheets 203 are fixedly embedded on the suction pipe 201; the suction pump 204 is fixedly connected to the suction pipe 201; the suction pipe 20 1 is fixedly installed with a flocculation liquid supply pipe 205, and the flocculation liquid supply pipe 205 is located on the inner side of the suction pipe 201; the liquid supply pump 206 is fixedly installed on the flocculation liquid supply pipe 205; the liquid supply pump 206 is used to supply flocculants; a valve is provided on the flocculation liquid supply pipe 205; the drainage pipe of the suction pump 204 is externally connected to a water storage tank; the liquid supply pump 206 is externally connected to a flocculant tank, and the suction connector 2 is used in conjunction with the circulation mounting member 1 to realize direct suction of the drilled mud as the drilling depth continues to decrease, which can avoid the problem of poor accuracy of mud content in the mud extracted by the traditional method of suction at the wellhead, and a large amount of mud is deposited in the bottom of the well. The deposited mud will also cause greater wear resistance to the drill bit. The structure extracts more directly and can continuously flocculate and circulate the mud, ensuring that the mud can be precipitated more quickly after being extracted, which can facilitate subsequent sampling of clear liquid and sediment.

[0036] The anti-winding detection member 3 comprises: an anti-winding detection frame 301 and an electric spring 302, the anti-winding detection frame 301 is fixedly mounted on the rotating circle 103 by two legs; the suction pipe 201 is located inside the anti-winding detection frame 301; two electric springs 302 are fixedly mounted on the inner side of the anti-winding detection frame 301; the two electric springs 302 are respectively located on both sides of the two electric springs 203; the electric springs 302 and the electric springs 203 on the same side are respectively connected in series with the driving motor 104 for power supply, and the electric springs 302 and the electric springs 203 on the same side are a group, and the two groups of electric springs 302 and the electric springs 203 are connected in opposite directions, and the anti-winding detection member 3 can ensure that the suction connector 2 samples the bottom of the well in real time without affecting the high-speed rotation drilling of the drill pipe 101, and at the same time, it can prevent the suction pipe 201 at the bottom of the drill pipe 101 from excessive wear or The present invention can utilize the characteristic that the suction pipe 201 will be skewed when it is twisted by the drill pipe 101, and can directly perform reverse rotation adaptation to avoid excessive pulling and twisting of the suction pipe 201 caused by the friction of the drill pipe 101 and the rotating circle 103. If the rotating circle 103 is driven to rotate due to factors such as the friction coefficient, the suction pipe 201 is driven in a spiral shape, and the suction pipe 201 is naturally skewed, driving the power connection piece 203 on the opposite side of the rotation direction to contact the power connection spring piece 302 on the corresponding side. At this time, the drive motor 104 can be started, and the gear on the output shaft of the drive motor 104 engages the rotating sleeve 102. At this time, under the interaction of forces, the rotating circle 103 will rotate for compensation, thereby ensuring that the present invention does not affect the continuous rotation and drilling of the drill pipe 101 when extracting bottom hole mud.

[0037] The closed water outlet test piece 4 includes: a closed shell 401, an isolation net 4011, a pressure supply pipe 402 and a pressure supply air pump 403. The closed shell 401 is fixedly sleeved on the rotating circle 103; two isolation nets 4011 are fixedly embedded on the closed shell 401; the closed shell 401 is fixedly connected with a pressure supply pipe 402; the pressure supply pipe 402 is connected with a pressure supply air pump 403; the closed shell 401 is sleeved on the drill pipe 101; the suction pipe 201 passes through the closed shell 401; the closed water outlet test piece 4 also includes: an inflation air bag 404 and a discharge pipe 405, the closed shell 401 is fixedly connected with the pressure supply pipe 402; the pressure supply pipe 402 is connected with the pressure supply air pump 403; the closed shell 401 is sleeved on the drill pipe 101; the suction pipe 201 passes through the closed shell 401; the closed water outlet test piece 4 also includes: an inflation air bag 404 and a discharge pipe 405, the closed shell 401 is fixedly connected with the pressure supply pipe 402; ... Two expansion air bags 404 are fixedly sleeved on the closed shell 401; the inner sides of the two expansion air bags 404 are respectively connected to the pressure supply pipe 402; the two expansion air bags 404 are respectively used to expand and fit the well wall; two discharge pipes 405 are fixedly installed on the closed shell 401, and the two discharge pipes 405 are respectively fixedly sleeved on the rotating circle 103; the discharge pipes 405 are used to conduct the well fluid; the pressure prompting member 5 includes: a pressure detection seat 501, a pressure sensor 502 and a pressure piston 503, and the SBT732 type pressure sensor 502 can be used, and the matching The pressure detection seat 501 is fixedly installed on the closed shell 401; a pressure sensor 502 is fixedly installed at the bottom of the pressure detection seat 501; a pressure piston 503 is slidably inserted into the closed shell 401; a spring is arranged between the pressure detection seat 501 and the pressure piston 503; the end of the pressure sensor 502 is attached to the pressure piston 503; the pressure sensor 502 is externally connected to a display, and the pressure prompting piece 5 can be used in conjunction with the closed water outlet test piece 4 to detect the water seepage layer, which can facilitate the staff to detect in real time without discharging the water in the borehole. The mud can be directly prompted to prevent the problem of borehole collapse caused by discharging too much mud in the borehole to check the seepage position. The present structure can be detected in real time, and the operation is simple and convenient for the staff. When the closed water outlet test piece 4 rotates in the normal rotating circle 103, there is a gap between the closing shell 401 and the borehole, which will not damage the well wall and avoid the well wall from collapsing due to friction. The air pump 403 is started to inflate the two expansion airbags 404, which expand and fit the well wall. At this time, if there is water seepage through the well wall through the isolation net 4011, the pressure can be monitored in real time.

[0038] Embodiment 2, on the basis of embodiment 1, the wellhead blowout preventer 6 comprises: a closing column 601, an anchor hole 602, a limit plate 603 and a circulating pump 604, the closing column 601 is sleeved on the drill pipe 101, and a gap is provided between the closing column 601 and the outer side of the drill pipe 101; the suction pipe 201 and the pressure supply pipe 402 pass through the closing column 601 respectively; three anchor holes 602 are provided on the closing column 601; the three anchor holes 602 are respectively used to insert anchor rods; the limit plate 603 is fixedly installed on the closing column 601; A circulation pump 604 is installed on the closed column 601, and a valve is provided on the liquid inlet pipe of the circulation pump 604; the injection detection member 7 includes: a lifting mounting frame 701 and a lifting shaft 702, the lifting mounting frame 701 is fixedly installed on the closed column 601; the lifting shaft 702 is slidably installed on the lifting mounting frame 701; a circle of through holes is provided on the lifting mounting frame 701; the injection detection member 7 also includes: a switch 703 and a propulsion cover 704, the switch 703 is electrically connected to the suction pump 204; the switch 703 is fixedly installed on the lifting mounting frame 701 The switch 703 is located below the limit plate 603; the propulsion cover 704 is fixedly mounted at the bottom of the lifting shaft 702; the propulsion cover 704 is a conical structure; a spring is connected between the propulsion cover 704 and the lifting mounting frame 701; the propulsion cover 704 is located inside the closed column 601, and the injection detection member 7 can be used to control the drainage of the anti-blowout. The structure is directly detected and can quickly control the suction pump 204 to perform auxiliary suction work. When a blowout occurs, the high-pressure fluid suddenly sprays out, which may directly impact the people on the scene. personnel, causing casualties; if the ejected fluid carries sand, gravel or rock debris, it may damage the drilling rig, wellhead equipment and other equipment. Blowout causes the pressure in the borehole to be out of control, and it is impossible to accurately determine key hydrological parameters such as the permeability coefficient and water supply degree of the aquifer, which affects the conclusion of resource evaluation and causes distortion of formation parameters. When the water pressure in the well is quickly discharged, the propulsion cover 704 can be directly pushed. At this time, the lifting shaft 702 pushes the switch 703 to move upward and squeeze the limit plate 603, which can control the suction pump 204 to directly suck, reduce the pressure, and reduce safety hazards.

[0039] The working principle of this embodiment is as follows: the sealing column 601 is inserted into the wellbore, and the three anchor holes 602 are used to insert anchor rods for positioning. When the drill rod 101 is moved downward for rotational drilling, the rotary circle 103 is also driven downward. The suction pipe 201 is used to suck the mud at the bottom of the drilling hole through the suction pump 204. During the process, the valve on the flocculation liquid supply pipe 205 can be opened, and the flocculant can be supplied through the liquid supply pump 206 to assist in flocculation of the soil. When the suction pump 204 discharges the mud into the water storage tank, if the amount of mud is small or the mixing effect of the flocculant needs to be increased, the circulation pump 60 After the valve of the liquid inlet pipe 4 is opened, it is connected to the water storage tank connected to the suction pump 204, and the mud containing flocculant is circulated and pumped into the wellbore. As the drill pipe 101 rotates, the rotary sleeve 102 is also driven to rotate. If the friction coefficient and other factors drive the rotary circle 103 to rotate, the suction pipe 201 is driven to be spiral, and the suction pipe 201 is naturally skewed, driving the power connection piece 203 on the opposite side of the rotation to contact the power connection spring piece 302 on the corresponding side. At this time, the drive motor 104 can be started, and the gear on the output shaft of the drive motor 104 meshes with the rotary sleeve 102. At this time, under the interaction of forces, the rotating circle 103 will rotate, and the rotating circle 103 can drive the lower end of the suction pipe 201 to rotate in the opposite direction, adjust the suction pipe 201, and prevent the suction pipe 201 from being torn off after being spirally wound around the drill pipe 101, so as to ensure that the structure does not affect the continuous rotation and drilling of the drill pipe 101 when extracting mud from the bottom of the well. Every time the drill pipe 101 drills a certain distance, the rotation of the drill pipe 101 is stopped, and the air pump 403 is started to inflate the two expansion air bags 404 to expand and fit the well wall. At this time, if there is water seepage through the isolation net 4011 on the well wall, as the seepage The pressure piston 503 will move up and squeeze the pressure sensor 502 under the action of the water pressure, which can be displayed on the display external to the pressure sensor 502. When the pressure increases significantly, it can be determined that there is water seepage here; when the water pressure in the well is quickly discharged and a blowout occurs, if the suction pump 204 is in a power-off state, the water pressure directly pushes the propulsion cover 704, and the spring between the propulsion cover 704 and the lifting mounting frame 701 is compressed. At this time, the lifting shaft 702 pushes the switch 703 to move up and squeeze the limit plate 603, so that the suction pump 204 can be controlled to directly suck and reduce the pressure.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogeological exploration mud circulation purification device, comprising a circulation installation member (1), on which a suction connection member (2) is installed, characterized in that: The suction connection piece (2) is used for flocculation and purification of drilling water; an anti-winding detection piece (3) is installed on the circulation installation piece (1); the anti-winding detection piece (3) is used to prevent the suction connection piece (2) from winding around the circulation installation piece (1); The circulation installation part (1) is provided with a closed water outlet test part (4); the closed water outlet test part (4) is used to fit the well wall; the closed water outlet test part (4) is provided with a pressure prompt part (5); A wellhead blowout preventer (6) is installed on the circulation installation part (1); the wellhead blowout preventer (6) is used to seal the exploration wellhead; an injection detection part (7) is installed on the wellhead blowout preventer (6); the injection detection part (7) is used to control the suction of well fluid; The circulating mounting part (1) comprises: a drill rod (101) and a rotating sleeve (102); the rotating sleeve (102) is fixedly sleeved on the outer side of the drill rod (101); and a circle of meshing teeth is arranged on the outer side of the rotating sleeve (102).

2. A hydrogeological exploration mud circulation purification device according to claim 1, characterized in that: The circulation mounting member (1) further comprises: a rotating ring (103) and a driving motor (104); the rotating ring (103) is rotatably mounted on the rotating sleeve (102); a rubber ring is arranged on the outside of the rotating ring (103); the rubber ring on the outside of the rotating ring (103) is used to fit the well wall; the driving motor (104) is fixedly mounted on the rotating ring (103); a gear is fixedly mounted on the output shaft of the driving motor (104), and the gear on the output shaft of the driving motor (104) meshes with the meshing teeth on the rotating sleeve (102).

3. A hydrogeological exploration mud circulation purification device according to claim 2, characterized in that: The suction connection piece (2) comprises: a suction pipe (201), a bellows (202), a power connection sheet (203), a suction pump (204), a flocculation liquid supply pipe (205) and a liquid supply pump (206); the suction pipe (201) is fixedly mounted on the rotating circle (103); a bellows (202) is provided in the middle section of the suction pipe (201); the suction pipe (201) is a soft structure; two power connection sheets (203) are fixedly embedded on the suction pipe (201); the suction pump (204) is provided with a flocculation liquid supply pipe (205) and a liquid supply pump (206); 04) is fixedly connected to the suction pipe (201); a flocculation liquid supply pipe (205) is fixedly installed on the suction pipe (201), and the flocculation liquid supply pipe (205) is located on the inner side of the suction pipe (201); the liquid supply pump (206) is fixedly installed on the flocculation liquid supply pipe (205); the liquid supply pump (206) is used to supply flocculant; a valve is provided on the flocculation liquid supply pipe (205); the drainage pipe of the suction pump (204) is externally connected to a water storage tank; the liquid supply pump (206) is externally connected to a flocculant tank.

4. A hydrogeological exploration mud circulation purification device according to claim 3, characterized in that: The anti-winding detection component (3) comprises: an anti-winding detection frame (301) and an electric connection spring sheet (302); the anti-winding detection frame (301) is fixedly mounted on the rotating circle (103) via two legs; the suction tube (201) is located inside the anti-winding detection frame (301); two electric connection spring sheets (302) are fixedly mounted inside the anti-winding detection frame (301); the two electric connection spring sheets (302) are respectively located on both sides of two electric connection sheets (203); the electric connection spring sheets (302) and the electric connection sheets (203) on the same side are respectively connected in series with the driving motor (104) and the electric connection spring sheets (302) and the electric connection sheets (203) on the same side are a group, and the two groups of electric connection spring sheets (302) and the electric connection sheets (203) have opposite directions of power connection.

5. The hydrogeological exploration mud circulation purification device according to claim 3 is characterized by: The closed water outlet test piece (4) comprises: a closed shell (401), an isolation net (4011), a pressure supply pipe (402) and a pressure supply air pump (403); the closed shell (401) is fixedly sleeved on the rotating circle (103); two isolation nets (4011) are fixedly embedded on the closed shell (401); the closed shell (401) is fixedly connected with a pressure supply pipe (402); the pressure supply pipe (402) is connected with a pressure supply air pump (403); the closed shell (401) is sleeved on the drill pipe (101); and the suction pipe (201) passes through the closed shell (401).

6. The hydrogeological exploration mud circulation purification device according to claim 5, characterized in that: The closed water outlet test piece (4) further comprises: an expansion airbag (404) and a discharge pipe (405); two expansion airbags (404) are fixedly sleeved on the closed shell (401); the inner sides of the two expansion airbags (404) are respectively connected to the pressure supply pipe (402); the two expansion airbags (404) are respectively used to expand and fit the well wall; two discharge pipes (405) are fixedly installed on the closed shell (401); the two discharge pipes (405) are respectively fixedly sleeved on the rotating circle (103); the discharge pipes (405) are used to conduct well fluid.

7. The hydrogeological exploration mud circulation purification device according to claim 5 is characterized by: The pressure prompting member (5) comprises: a pressure detection seat (501), a pressure sensor (502) and a pressure piston (503); the pressure detection seat (501) is fixedly mounted on the closed shell (401); the pressure sensor (502) is fixedly mounted on the bottom of the pressure detection seat (501); the pressure piston (503) is slidably inserted into the closed shell (401); a spring is provided between the pressure detection seat (501) and the pressure piston (503); the end of the pressure sensor (502) is attached to the pressure piston (503); and the pressure sensor (502) is externally connected to a display.

8. The hydrogeological exploration mud circulation purification device according to claim 5, characterized in that: The wellhead blowout preventer (6) comprises: a closing column (601), an anchor hole (602), a limit plate (603) and a circulation pump (604); the closing column (601) is sleeved on a drill pipe (101), and a gap is provided between the closing column (601) and the outer side of the drill pipe (101); the suction pipe (201) and the pressure supply pipe (402) respectively pass through the closing column (601); three anchor holes (602) are provided on the closing column (601); the three anchor holes (602) are respectively used to insert anchor rods; the limit plate (603) is fixedly installed on the closing column (601); the circulation pump (604) is installed on the closing column (601), and a valve is provided on the liquid inlet pipe of the circulation pump (604).

9. The hydrogeological exploration mud circulation purification device according to claim 8, characterized in that: The injection detection component (7) comprises: a lifting mounting frame (701) and a lifting shaft (702); the lifting mounting frame (701) is fixedly mounted on the closed column (601); the lifting shaft (702) is slidably mounted on the lifting mounting frame (701); and a circle of through holes is provided on the lifting mounting frame (701).

10. The hydrogeological exploration mud circulation purification device according to claim 9, characterized in that: The injection detection component (7) further comprises: a switch (703) and a propulsion cover (704), wherein the switch (703) is electrically connected to the suction pump (204); the switch (703) is fixedly mounted on the lifting shaft (702); the switch (703) is located below the limit plate (603); the propulsion cover (704) is fixedly mounted at the bottom of the lifting shaft (702); the propulsion cover (704) is a conical structure; a spring is connected between the propulsion cover (704) and the lifting mounting frame (701); and the propulsion cover (704) is located inside the closed column (601).

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