CN216277756U

CN216277756U - Vehicle-mounted mud purification and allocation system

Info

Publication number: CN216277756U
Application number: CN202122517810.2U
Authority: CN
Inventors: 段隆臣; 吴来杰; 何帅; 何王勇; 高辉; 王院生; 李晓飞; 周龙
Original assignee: China University of Geosciences
Current assignee: China University of Geosciences
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-04-12
Anticipated expiration: 2031-10-19

Abstract

The utility model provides a vehicle-mounted mud purification and allocation system, and relates to the technical field of geological exploration; vehicle-mounted mud purifies allotment system includes: the system comprises a transport truck, a wellhead slurry pumping pump, a slurry purification and allocation system, a wellhead cofferdam, a first liquid level sensor and a controller; the wellhead slurry pumping pump is arranged on the transport truck; the feed inlet of the wellhead slurry pump is communicated with the inside of the wellhead cofferdam through a slurry pumping pipeline, and the discharge outlet is communicated with a slurry purification and allocation system; two ends of the slurry pumping pipeline are respectively detachably connected with the wellhead cofferdam and the wellhead slurry pumping pump; the first liquid level sensor is arranged on the inner side wall of the wellhead cofferdam and used for detecting the liquid level of slurry in the wellhead cofferdam; the mud purification and allocation system is arranged on the transport truck; the controller is arranged on the mud purification and distribution system and is respectively and electrically connected with the first liquid level sensor and the wellhead slurry pumping pump; the utility model can be conveniently transferred and transported, and can collect the slurry in the well drilling through the wellhead cofferdam, thereby being convenient to use.

Description

Vehicle-mounted mud purification and allocation system

Technical Field

The utility model relates to the technical field of geological exploration, in particular to a vehicle-mounted mud purification and allocation system.

Background

The mud is the blood of drilling engineering, and in the drilling construction process, the mud solid phase control is the guarantee for maintaining the excellent performance of the mud. The excellent mud performance is the precondition of preventing accidents in the hole, improving the drilling speed and reducing the cost. The solid phase in the slurry can be divided into two types according to the function: one is a "useful solid phase" such as bentonite, chemical treatment agents, weighting agents, and the like; the other is "harmful solids", mainly drill cuttings that enter the mud during drilling. Excessive accumulation and increase of harmful solid phases bring great harm to the performance of the mud and even the safety and rapidity of drilling engineering.

At present, the foreign mud purification device has the advantages of multi-stage solid control capacity, various models, perfect performance, high automation degree and the like, and in the exploration and development of oil and gas wells, the mud configuration technology is advanced, the mud treatment process is developed well, and the mud purification requirement in large oil and gas wells can be met. In addition, foreign countries pay particular attention to the optimized configuration of the slurry purification and allocation system and the efficiency evaluation of the whole slurry purification system, and therefore a slurry purification and allocation expert system is developed. However, for the drilling of middle and shallow holes, the foreign mud purification device occupies a large area, the mud circulation purification box body is inconvenient to disassemble and install and difficult to transport, and the device is not suitable for the complex drilling environment of the hydrogeological well.

At present, the mud purification equipment with high automation degree in the domestic hydrographic water well drilling industry is applied less, and the technical level of manual treatment or empirical semi-automatic mechanical treatment for mud purification is still remained; the integration level of a slurry purification and allocation system is not high, and the transfer and the transportation are not convenient enough; in addition, when the mud in the well is recovered and purified, a pit needs to be dug to collect the mud in the well, which is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the existing mud purification and allocation system is inconvenient to use due to the fact that a pit is required to be dug to collect mud in a drilling well.

The utility model provides a vehicle-mounted mud purification and allocation system, which comprises: the system comprises a transport truck, a wellhead slurry pumping pump, a slurry purification and allocation system, a wellhead cofferdam, a first liquid level sensor and a controller;

the wellhead slurry pumping pump is arranged on the transport truck and used for conveying the slurry in the wellhead cofferdam to the slurry purification and allocation system; the feed inlet of the wellhead slurry pump is communicated with the interior of the wellhead cofferdam through a slurry pumping pipeline, and the discharge outlet of the wellhead slurry pump is communicated with the slurry purification and allocation system; the two ends of the slurry pumping pipeline are respectively detachably connected with the wellhead cofferdam and the wellhead slurry pumping pump;

the first liquid level sensor is arranged on the inner side wall of the wellhead cofferdam and used for detecting the liquid level of mud in the wellhead cofferdam;

the mud purification and blending system is arranged on the transport truck and used for purifying and blending mud delivered by the wellhead mud pumping pump;

the controller is arranged on the mud purification and allocation system and is respectively electrically connected with the first liquid level sensor and the wellhead slurry pump.

Further, the mud purification and allocation system comprises a mounting frame, a cache tank, a mud storage tank and a mud solid control unit;

the buffer tank and the pulp storage tank are both arranged inside the mounting frame; a first slag discharge port and a slurry outlet are respectively arranged at two sides of the slurry storage tank; a second slag discharge port is formed in one side of the cache tank;

the slurry solid control unit comprises a vibrating screen, a sand removing and slurry pumping pump, a sand remover and a slurry storage stirrer; the vibrating screen is arranged at the top of the mounting frame, is communicated with the interior of the cache tank and is used for conveying slurry conveyed by the wellhead slurry pumping pump into the cache tank after being screened; the sand removing and pumping pump and the sand remover are both arranged at the top of the mounting frame; the sand removing and slurry pumping pump is electrically connected with the controller; the desanding and pumping pump is used for conveying the slurry in the cache tank to the desander; the purified slurry outlet of the desander is communicated with the slurry storage tank and is used for conveying the slurry purified by the desander to the slurry storage tank; a slag discharge slurry outlet of the desander is communicated with the cache tank; the slurry storage stirrer is arranged at the top of the slurry storage tank and used for stirring slurry in the slurry storage tank.

Furthermore, a sand discharge chute is arranged at the outlet of the screen of the vibrating screen and used for conveying the particles screened by the vibrating screen to a sand and stone collecting tank; the sand and stone collecting tank is arranged on one side of the mounting frame and used for discharging the particulate matters conveyed by the sand discharge chute to the outside of the slurry purification and allocation system.

Further, the mud purification and blending system also comprises an offline slurry blending unit; the offline slurry mixing unit comprises a clean water pump, a slurry mixing tank and a slurry mixing stirrer; the clean water pump and the slurry preparation tank are both arranged at the top of the mounting frame; the water outlet of the clean water pump is respectively communicated with the pulp storage tank and the pulp distribution tank, and the water inlet of the clean water pump is used for being communicated with an external water source; a first electromagnetic valve is arranged on a connecting pipeline between the water outlet of the clean water pump and the pulp storage tank; a second electromagnetic valve is arranged on a connecting pipeline between the water outlet of the clean water pump and the slurry preparation tank; the slurry mixing stirrer is arranged at the top of the slurry mixing tank and is used for stirring slurry mixing materials in the slurry mixing tank; the bottom of the slurry preparation tank is communicated with the slurry storage tank through a slurry supplementing pipeline; a third electromagnetic valve is arranged on the slurry supplementing pipeline; the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the clean water pump are respectively electrically connected with the controller.

Further, the mud purification and blending system also comprises an online slurry mixing unit; the online slurry mixing unit comprises a jet flow slurry mixing device, a first feeding device and a second feeding device which are arranged in the mounting frame; the discharge hole of the jet flow slurry mixing device is communicated with the slurry storage tank; a charging hopper is arranged above the jet flow slurry mixing device; the bottom of the charging hopper is communicated with a feeding hole of the jet flow slurry mixing device; a fourth electromagnetic valve is arranged between the charging hopper and the feeding hole of the jet flow slurry mixing device; the first feeding device and the second feeding device are respectively communicated with the upper end of the feeding hopper and are respectively used for adding size-mixing raw materials into the feeding hopper; the jet flow slurry mixing device is used for conveying the slurry mixing raw material in the feeding hopper to the slurry storage tank; the controller is respectively electrically connected with the fourth electromagnetic valve, the first feeding device and the second feeding device.

Further, the mud purification and blending system further comprises a second liquid level sensor and a third liquid level sensor; the second liquid level sensor is arranged in the buffer tank and used for detecting the liquid level of the slurry in the buffer tank; the third liquid level sensor is arranged in the slurry storage tank and used for detecting the liquid level of the slurry in the slurry storage tank; the controller is respectively electrically connected with the second liquid level sensor and the third liquid level sensor.

Furthermore, a density sensor and a pH value sensor are also arranged in the slurry storage tank and are respectively used for detecting the density and the pH value of the slurry in the slurry storage tank; the controller is respectively and electrically connected with the density sensor and the pH value sensor.

Further, a spray pipe is arranged on the vibrating screen; one end of the spray pipe is provided with a spray head, and the other end of the spray pipe is communicated with an external pressurized water source; a fifth electromagnetic valve is arranged on the spray pipe; the spray header is used for spraying water onto the screen of the vibrating screen to prevent the screen of the vibrating screen from being blocked by mud; the fifth electromagnetic valve is electrically connected with the controller.

Further, the top of the mounting frame is detachably provided with a guardrail.

Further, one side of the mounting rack is detachably provided with a hanging ladder.

The technical scheme provided by the embodiment of the utility model has the following beneficial effects: the vehicle-mounted mud purification and allocation system in the embodiment of the utility model integrates a wellhead slurry pumping pump, a mud purification and allocation system, a wellhead cofferdam and a controller on a transport truck; when the mud in the well drilling needs to be purified and allocated, the vehicle-mounted mud purification allocation system is transferred and transported to the well drilling site through the transport truck, the well mouth cofferdam is arranged at the well mouth of the well drilling to collect the mud in the well drilling, the slurry pumping pipeline is connected with the well mouth cofferdam and the feed inlet of the well mouth slurry pumping pump, the mud in the well mouth cofferdam is conveyed to the mud purification allocation system through the well mouth slurry pumping pump to be purified and allocated, the vehicle-mounted mud purification allocation system can be conveniently transferred and transported, a pit for collecting the mud in the well drilling is not required to be specially dug, and the mud is directly collected through the well mouth cofferdam, so that the use is convenient; in addition, through set up first level sensor in the well head cofferdam, and will the controller respectively with first level sensor with well head pump electric connection, can be according to the liquid level of mud in the well head cofferdam controls the adjustment the rotational speed of well head pump, can guarantee well head pump normal operating improves suction efficiency.

Drawings

FIG. 1 is a schematic diagram of a vehicle-mounted mud purification and conditioning system according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a mud purification and dispensing system 4 of the vehicle-mounted mud purification and dispensing system of FIG. 1;

FIG. 3 is a front view of the mud conditioning system 4 of FIG. 2;

FIG. 4 is a top view of the mud conditioning system 4 of FIG. 2;

FIG. 5 is a side view of the mud conditioning system 4 of FIG. 2;

FIG. 6 is a schematic perspective view of the shaker 42 of the mud conditioning system 4 of FIG. 2;

FIG. 7 is a schematic circuit diagram of the on-board slurry purification and blending system of FIG. 1;

wherein, 1, a transport truck; 2. a generator set; 3. a wellhead slurry pumping pump; 4. a mud purification and blending system; 41. a mounting frame; 411. a buffer tank; 412. a second slag discharge port; 413. a slurry storage tank; 414. A first slag discharge port; 415. a slurry storage stirrer; 416. hanging a ladder; 417. a pulp outlet; 418. a guardrail; 42. vibrating screen; 421. a sand discharge chute; 422. a sand and stone collecting tank; 423. a shower pipe; 424. A fifth solenoid valve; 425. a shower head; 43. removing sand and pumping the slurry pump; 44. a desander; 45. a clean water pump; 451. a first solenoid valve; 452. a second solenoid valve; 46. a slurry preparation tank; 461. a slurry mixing stirrer; 462. a slurry supplementing pipeline; 463. a third electromagnetic valve; 47. a jet flow slurry mixing device; 471. a hopper; 472. a fourth solenoid valve; 48. a first feeding device; 49. a second feeding device; 5. a controller; 6. a slurry pumping pipeline; 7. cofferdam of the well mouth; 8. a first liquid level sensor; 9. a second liquid level sensor; 10. a third liquid level sensor; 11. a density sensor; 12. and a pH value sensor.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.

Referring to fig. 1, an embodiment of the present invention provides a vehicle-mounted mud purifying and blending system, including: the system comprises a transport truck 1, a wellhead slurry pumping pump 3, a slurry purification and blending system 4, a wellhead cofferdam 7, a first liquid level sensor 8 and a controller 5;

the wellhead slurry pump 3 is arranged on the transport truck 1 and used for conveying the slurry in the wellhead cofferdam 7 to the slurry purification and allocation system 4; the feed inlet of the wellhead slurry pump 3 is communicated with the inside of a wellhead cofferdam 7 through a slurry pumping pipeline 6, and the discharge outlet is communicated with a slurry purification and allocation system 4; two ends of the slurry pumping pipeline 6 are respectively detachably connected with the wellhead cofferdam 7 and the wellhead slurry pumping pump 3; when the wellhead cofferdam 7 is used, the wellhead cofferdam is placed on the outer side of a drilling wellhead and is connected with a wellhead slurry pumping pump 3 through a slurry pumping pipeline 6; after the use is finished, two ends of the slurry pumping pipeline 6 are respectively detached from the wellhead slurry pumping pump 3 and the wellhead cofferdam 7, and the slurry pumping pipeline 6 and the wellhead cofferdam 7 are placed on the transport truck 1;

the first liquid level sensor 8 is arranged on the inner side wall of the wellhead cofferdam 7 and used for detecting the liquid level of slurry in the wellhead cofferdam 7;

the slurry purification and blending system 4 is arranged on the transport truck 1 and is used for purifying and blending slurry conveyed by the wellhead slurry pump 3;

the controller 5 is arranged on the mud purification and distribution system 4 and is respectively electrically connected with the first liquid level sensor 8 and the wellhead slurry pump 3; the controller 5 adjusts the rotating speed of the wellhead slurry pump 3 according to the liquid level of the slurry in the wellhead cofferdam 7 detected by the first liquid level sensor 8; when the liquid level that detects the mud in the well head cofferdam 7 is higher, controller 5 control well head pump 3 moves with higher rotational speed, when the liquid level that detects the mud in the well head cofferdam 7 is lower, controller 5 control well head pump 3 moves with lower rotational speed, when guaranteeing well head pump 3 normal operating, improves well head pump 3's suction efficiency.

Exemplarily, in the present embodiment, the controller 5 is a PLC controller.

Specifically, referring to fig. 2 to 6, the mud purification and conditioning system 4 includes a mounting frame 41, a buffer tank 411, a mud storage tank 413 and a mud solid control unit;

the buffer tank 411 and the pulp storage tank 413 are both arranged inside the mounting frame 41; a first slag discharge port 414 and a slurry outlet 417 are respectively arranged at two sides of the slurry storage tank 413; the first slag discharge port 414 is used for conveniently cleaning mud residues in the slurry storage tank 413; the slurry outlet 417 is used for discharging the slurry in the slurry storage tank 413 to the outside; a second slag discharge port 412 is formed in one side of the buffer tank 411 and is used for conveniently cleaning mud residues in the buffer tank 411;

the mud solid control unit comprises a vibrating screen 42, a sand removing and slurry pumping pump 43, a sand remover 44 and a slurry storage stirrer 415; the vibrating screen 42 is arranged at the top of the mounting frame 41, is communicated with the interior of the buffer tank 411, and is used for conveying slurry conveyed by the wellhead slurry pump 3 into the buffer tank 411 after being screened; the top of the buffer tank 411 is provided with a feed inlet for communicating with the vibrating screen 42; the sand removing and pumping pump 43 and the sand remover 44 are both arranged at the top of the mounting frame 41; the sand removing and slurry pumping pump 43 is electrically connected with the controller 5; the desanding and pumping pump 43 is used for conveying the slurry in the buffer tank 411 to the desander 44; the purified slurry outlet of the sand remover 44 is communicated with the slurry storage tank 413 and is used for conveying the slurry purified by the sand remover 44 to the slurry storage tank 413; the slag discharge slurry outlet of the desander 44 is communicated with the buffer tank 411; the slurry storage stirrer 415 is arranged at the top of the slurry storage tank 413 and is used for stirring slurry in the slurry storage tank 413; when the device is used, the wellhead slurry pump 3 conveys slurry in the wellhead cofferdam 7 to the vibrating screen 42, the vibrating screen 42 screens out particles with larger volume, and the screened slurry flows into the buffer tank 411 to realize primary purification; the desanding and pumping pump 43 pumps the slurry in the buffer tank 411 into the desander 44, and the desander 44 performs second purification on the slurry in the buffer tank 411; wherein the sludge containing the larger particles flows back from the slag discharge sludge outlet of the desander 44 into the buffer tank 411, from where the cleaned sludge flows into the stock tank 413.

Exemplarily, in the present embodiment, the mounting frame 41 has a double-layer frame structure; the top and the bottom of the mounting frame 41 are respectively provided with a top plate and a bottom plate; the mounting frame 41 is also provided with side plates; the side plates, the top plate and the bottom plate are enclosed to form a box body structure; a partition board is arranged in the middle of the box body structure to divide the box body structure into a cache tank 411 and a slurry storage tank 413; one end of the mounting bracket 41 is reserved with a mounting space.

Referring to fig. 2, in order to conveniently discharge large particles screened by the vibrating screen 42 to the outside of the mud purification and blending system 4, a sand discharge chute 421 is provided at an outlet of a screen of the vibrating screen 42, and is used for conveying the particles screened by the vibrating screen 42 to a sand and stone collecting tank 422; the sand collecting tank 422 is arranged on one side of the mounting frame 41 and is used for discharging the particulate matters conveyed by the sand discharge chute 421 to the outside of the slurry purification and blending system 4; the upper end of the gravel collecting tank 422 is rotatably connected with the outer side wall of the buffer tank 411, so that the inclination angle of the gravel collecting tank 422 can be adjusted; during the use, place grit collecting container in the position that is close to grit collecting tank 422 earlier, adjust the inclination of grit collecting tank 422 and the position of grit collecting container for the lower extreme export of grit collecting tank 422 is located the opening of grit collecting container, then collects the grit that shale shaker 42 sieved out.

Referring to fig. 2 and 4, the mud purification and conditioning system 4 further comprises an offline slurry preparation unit; the offline slurry mixing unit comprises a clean water pump 45, a slurry mixing tank 46 and a slurry mixing stirrer 461; the clean water pump 45 and the slurry distribution tank 46 are arranged at the top of the mounting frame 41; the water outlet of the clean water pump 45 is respectively communicated with the pulp storage tank 413 and the pulp distribution tank 46, and the water inlet of the clean water pump 45 is used for being communicated with an external water source; a first electromagnetic valve 451 is arranged on a connecting pipeline between the water outlet of the clean water pump 45 and the pulp storage tank 413; a second electromagnetic valve 452 is arranged on a connecting pipeline between the water outlet of the clean water pump 45 and the slurry distribution tank 46; the slurry mixing stirrer 461 is arranged at the top of the slurry mixing tank 46 and is used for stirring slurry mixing materials in the slurry mixing tank 46; the bottom of the slurry preparation tank 46 is communicated with the slurry storage tank 413 through a slurry supplementing pipeline 462; a third electromagnetic valve 463 is arranged on the pulp supplementing pipeline 462; the first electromagnetic valve 451, the second electromagnetic valve 452, the third electromagnetic valve 463 and the clean water pump 45 are respectively electrically connected with the controller 5; when the clear water needs to be supplemented in the slurry storage tank 413, the controller 5 controls the first electromagnetic valve 451 and the clear water pump 45 to be opened; when clear water needs to be supplemented in the slurry preparation tank 46, the controller 5 controls the second electromagnetic valve 452 and the clear water pump 45 to be opened; when slurry needs to be replenished in the slurry storage tank 413, the controller 5 controls the third electromagnetic valve 463 to be opened, and slurry in the slurry preparation tank 46 flows into the slurry storage tank 413 through the slurry replenishing pipeline 462.

Referring to fig. 3 and 5, the slurry purification and blending system 4 further includes an online slurry mixing unit installed in the reserved installation space of the installation frame 41; the online slurry mixing unit comprises a jet flow slurry mixing device 47, a first feeding device 48 and a second feeding device 49 which are arranged in the mounting frame 41; the discharge hole of the jet flow slurry mixing device 47 is communicated with the slurry storage tank 413; a feeding hopper 471 is arranged above the jet flow slurry mixing device 47; the bottom of the charging hopper 471 is communicated with the feeding hole of the jet flow slurry mixing device 47; a fourth electromagnetic valve 472 is arranged between the feeding hopper 471 and the feeding port of the jet flow slurry mixing device 47; the first feeding device 48 and the second feeding device 49 are respectively communicated with the upper end of the feeding hopper 471 and are respectively used for adding the size-mixing raw materials into the feeding hopper 471; the slurry mixing raw materials comprise bentonite, barite, chemical additives and the like; the jet flow slurry mixing device 47 is used for conveying the slurry mixing raw material in the feeding hopper 471 to the slurry storage tank 413; the controller 5 is electrically connected to the fourth solenoid valve 472, the first feeding device 48 and the second feeding device 49, respectively.

Illustratively, in the present embodiment, the first feed device 48 is used to add bentonite and/or barite; the second feeding device 49 is used for adding chemical additives; when bentonite and/or barite is required to be added into the slurry storage tank 413, the bentonite and/or barite is placed in the first feeding device 48, the controller 5 controls the first feeding device 48 and the fourth electromagnetic valve 472 to be opened, and the bentonite and/or barite enters the feeding hopper 471 under the action of the first feeding device 48 and enters the slurry storage tank 413 through the jet flow slurry mixing device 47; when chemical additives need to be added into the slurry storage tank 413, the chemical additives are placed in the second feeding device 49, the controller 5 controls the second feeding device 49 and the fourth electromagnetic valve 472 to be opened, and the chemical additives enter the feeding hopper 471 under the action of the first feeding device 48 and enter the slurry storage tank 413 through the jet flow slurry mixing device 47.

Illustratively, in the present embodiment, the first feeding device 48 and the second feeding device 49 are both vertical screw conveyors.

Specifically, the mud purification and blending system 4 further comprises a second liquid level sensor 9 and a third liquid level sensor 10; the second liquid level sensor 9 is arranged in the buffer tank 411 and used for detecting the liquid level of the slurry in the buffer tank 411; the third liquid level sensor 10 is arranged in the slurry storage tank 413 and used for detecting the liquid level of slurry in the slurry storage tank 413; the controller 5 is respectively electrically connected with the second liquid level sensor 9 and the third liquid level sensor 10; when the second liquid level sensor 9 detects that the liquid level of the slurry in the buffer tank 411 is low, the controller 5 controls the desanding slurry pump 43 to be closed, and the desanding slurry pump 43 stops pumping the slurry in the buffer tank 411; when the third liquid level sensor 10 detects that the liquid level in the slurry storage tank 413 is low, the controller 5 controls the third electromagnetic valve 463 to be opened, and slurry in the slurry distribution tank 46 enters the slurry storage tank 413 through the slurry supplementing pipeline 462 to be supplemented with slurry.

Specifically, a density sensor 11 and a pH sensor 12 are further arranged in the slurry storage tank 413 and are respectively used for detecting the density and the pH of the slurry in the slurry storage tank 413; the controller 5 is respectively electrically connected with the density sensor 11 and the pH value sensor 12; when the density sensor 11 detects that the density of the slurry in the slurry storage tank 413 is low, the controller 5 controls the first feeding device 48 and the fourth electromagnetic valve 472 to be opened, and the bentonite and/or barite is supplemented into the slurry storage tank 413 through the jet flow slurry mixing device 47; when the pH value sensor 12 detects that the pH value of the slurry in the slurry storage tank 413 is low, the controller 5 controls the second feeding device 49 and the fourth electromagnetic valve 472 to be opened, and chemical additives are supplemented into the slurry storage tank 413 through the jet flow slurry mixing device 47 so as to adjust the pH value of the slurry in the slurry storage tank 413.

Referring to fig. 6, in order to prevent the screen of the shaker 42 from being clogged with mud, a shower 423 is provided on the shaker 42; one end of the spray pipe 423 is provided with a spray head 425, and the other end is used for being communicated with an external pressurized water source; a fifth electromagnetic valve 424 is arranged on the spray pipe 423; the spray header 425 is used to spray water onto the screen of the shaker 42; the fifth solenoid valve 424 is electrically connected to the controller 5; when the device is used, one end of the spraying pipe 423 is communicated with an external pressurized water source, the controller 5 controls the opening of the fifth electromagnetic valve 424 at regular time, and water is sprayed onto the screen of the vibrating screen 42 through the spraying head 425.

Referring to fig. 1, a guard rail 418 is detachably provided on the top of the mounting bracket 41, and a hanging ladder 416 is detachably provided on one side of the mounting bracket 41, so that a user can conveniently climb on the top of the mounting bracket 41.

In this embodiment, the transport truck 1 is further provided with a generator set 2 for supplying power to the vehicle-mounted mud purification and distribution system.

The use method of the vehicle-mounted mud purification and blending system in the embodiment is as follows:

when the mud in the well drilling needs to be purified and allocated, the vehicle-mounted mud purification and allocation system is transferred and transported to a well drilling site through the transport truck 1, the wellhead cofferdam 7 is arranged at the wellhead of the well drilling to collect the mud in the well drilling, the mud in the wellhead cofferdam 7 is connected with the feed inlet of the wellhead slurry pump 3 through the slurry pumping pipeline 6, and the mud in the wellhead cofferdam 7 is transported to the vibrating screen 42 through the wellhead slurry pump 3; the vibrating screen 42 screens out the particles with larger volume, and the screened mud flows into the buffer tank 411 to realize the first purification; the desanding and pumping pump 43 pumps the slurry in the buffer tank 411 into the desander 44, and the desander 44 performs second purification on the slurry in the buffer tank 411; wherein the slurry containing larger particles flows back to the buffer tank 411 from the slag discharge slurry outlet of the desander 44, and the purified slurry flows into the slurry storage tank 413 from the purified slurry outlet; when slurry needs to be supplemented into the slurry storage tank 413, the controller 5 controls the third electromagnetic valve 463 to be opened, and slurry in the slurry preparation tank 46 enters the slurry storage tank 413 through the slurry supplementing pipeline 462; when the performance parameters of the slurry in the slurry storage tank 413 need to be adjusted, the controller 5 controls the first feeding device 48 and/or the second feeding device 49 and the fourth electromagnetic valve 472 to be opened, and the slurry mixing raw materials such as bentonite, barite, chemical additives and the like are supplemented into the slurry storage tank 413 through the jet flow slurry mixing device 47; finally, the cleaned and conditioned mud in the mud tank 413 is delivered to the well via the mud outlet 417.

It should be noted that the vibrating screen 42, the sand remover 44, the jet flow mixing device 47, the first feeding device 48, the second feeding device 49, the slurry storage stirrer 415 and the slurry preparation stirrer 461 are all in the prior art, and therefore, detailed descriptions thereof are omitted.

The above is not relevant and is applicable to the prior art.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a vehicular mud purifies allotment system which characterized in that includes: the system comprises a transport truck, a wellhead slurry pumping pump, a slurry purification and allocation system, a wellhead cofferdam, a first liquid level sensor and a controller;

2. The vehicle-mounted mud purification and distribution system according to claim 1, wherein the mud purification and distribution system comprises a mounting frame, a buffer tank, a mud storage tank and a mud solid control unit;

3. The vehicle-mounted mud purification and blending system according to claim 2, wherein a sand discharge chute is arranged at an outlet of a screen of the vibrating screen and used for conveying the particles screened by the vibrating screen to a sand and stone collecting tank; the sand and stone collecting tank is arranged on one side of the mounting frame and used for discharging the particulate matters conveyed by the sand discharge chute to the outside of the slurry purification and allocation system.

4. The vehicle-mounted mud purification and blending system of claim 2, further comprising an offline slurry blending unit; the offline slurry mixing unit comprises a clean water pump, a slurry mixing tank and a slurry mixing stirrer; the clean water pump and the slurry preparation tank are both arranged at the top of the mounting frame; the water outlet of the clean water pump is respectively communicated with the pulp storage tank and the pulp distribution tank, and the water inlet of the clean water pump is used for being communicated with an external water source; a first electromagnetic valve is arranged on a connecting pipeline between the water outlet of the clean water pump and the pulp storage tank; a second electromagnetic valve is arranged on a connecting pipeline between the water outlet of the clean water pump and the slurry preparation tank; the slurry mixing stirrer is arranged at the top of the slurry mixing tank and is used for stirring slurry mixing materials in the slurry mixing tank; the bottom of the slurry preparation tank is communicated with the slurry storage tank through a slurry supplementing pipeline; a third electromagnetic valve is arranged on the slurry supplementing pipeline; the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the clean water pump are respectively electrically connected with the controller.

5. The vehicle-mounted mud purification and blending system of claim 4, further comprising an online slurry mixing unit; the online slurry mixing unit comprises a jet flow slurry mixing device, a first feeding device and a second feeding device which are arranged in the mounting frame; the discharge hole of the jet flow slurry mixing device is communicated with the slurry storage tank; a charging hopper is arranged above the jet flow slurry mixing device; the bottom of the charging hopper is communicated with a feeding hole of the jet flow slurry mixing device; a fourth electromagnetic valve is arranged between the charging hopper and the feeding hole of the jet flow slurry mixing device; the first feeding device and the second feeding device are respectively communicated with the upper end of the feeding hopper and are respectively used for adding size-mixing raw materials into the feeding hopper; the jet flow slurry mixing device is used for conveying the slurry mixing raw material in the feeding hopper to the slurry storage tank; the controller is respectively electrically connected with the fourth electromagnetic valve, the first feeding device and the second feeding device.

6. The vehicle-mounted mud purification and blending system of claim 4, further comprising a second level sensor and a third level sensor; the second liquid level sensor is arranged in the buffer tank and used for detecting the liquid level of the slurry in the buffer tank; the third liquid level sensor is arranged in the slurry storage tank and used for detecting the liquid level of the slurry in the slurry storage tank; the controller is respectively electrically connected with the second liquid level sensor and the third liquid level sensor.

7. The vehicle-mounted mud purifying and blending system according to claim 5, wherein a density sensor and a pH sensor are further arranged in the mud storage tank and are respectively used for detecting the density and the pH value of the mud in the mud storage tank; the controller is respectively and electrically connected with the density sensor and the pH value sensor.

8. The vehicle-mounted mud purification and blending system according to claim 2, wherein the vibrating screen is provided with a spray pipe; one end of the spray pipe is provided with a spray head, and the other end of the spray pipe is communicated with an external pressurized water source; a fifth electromagnetic valve is arranged on the spray pipe; the spray header is used for spraying water onto the screen of the vibrating screen to prevent the screen of the vibrating screen from being blocked by mud; the fifth electromagnetic valve is electrically connected with the controller.

9. The vehicle-mounted mud purification and blending system of claim 2, wherein the top of the mounting frame is detachably provided with a guardrail.

10. The vehicle-mounted mud purification and blending system according to claim 2, wherein a hanging ladder is detachably arranged on one side of the mounting rack.