Drilling mud treatment system

Abstract

The utility model relates to the technical field of mud treatment, in particular to a drilling mud treatment system which comprises a diluting unit, a dispersing unit, a stirring unit and a pumping unit, the diluting unit is provided with a diluting cavity, mud to be treated can be firstly introduced into the diluting cavity, the dispersing unit is connected with the diluting unit, and the stirring unit is connected with the pumping unit. The high-pressure water gun can be used for flushing water into the dilution cavity to disperse diluted mud pies and dilute the mud, the stirring unit is connected with the dilution unit, the mud diluted by the dilution unit is introduced into the stirring unit, the stirring unit stirs the mud, and therefore it is guaranteed that the mud dilution uniformity is improved; and the stirred diluted emulsion slurry is conveyed to the stopped salt well dissolving cavity through the pumping unit, so that harmless treatment of the slurry is realized, pollution of the slurry to the ground is avoided, and meanwhile, the treatment cost of the slurry can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mud treatment, in particular to a drilling mud treatment system. Background Art

[0002] Waste drilling mud is a kind of waste developed by the oil and gas industry. It is a colloidal suspension mainly composed of rock cuttings, clay particles, inorganic salts, drilling fluid treatment agents, additives, etc., with a water content of 35%-90%. If not handled properly, the salts, alkalis and other organic and inorganic substances contained in it will cause serious pollution to the soil and water bodies around the well site. At present, the waste mud is generally disposed of by landfill, but landfill treatment is easy to cause pollution to the ground.

[0003] In order to avoid mud pollution to the ground, a method for harmless treatment of drilling waste mud is disclosed in a patent document with publication number CN100418647C, and its specific steps are as follows: stirring in a mud pool, adding a neutralizer to neutralize the sodium hydroxide and sodium carbonate in the waste mud, and complexing the metal ions in the mud; then adding bleaching powder to remove the sulfide in the mud; and then adding an adsorbent to absorb the moisture in the waste mud, destroying the emulsion balance of the waste mud, changing the mud properties, and preventing pollutants from penetrating outward, thereby achieving harmless treatment of the waste mud.

[0004] Currently, waste mud can be harmlessly treated by adding chemical additives, but the treatment process is relatively complicated and requires a large amount of additives, resulting in high treatment costs for waste drilling mud. Utility Model Content

[0005] In view of this, it is necessary to provide a drilling mud treatment system to solve the technical problem of high treatment cost of waste drilling mud in the prior art.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model provides a drilling mud processing system, including:

[0007] A dilution unit is provided with a dilution chamber, wherein the dilution chamber is used to contain mud;

[0008] A dispersing unit, connected to the dilution unit, for dispersing the slurry in the dilution chamber;

[0009] a stirring unit connected to the diluting unit and used for stirring the diluted mud; and

[0010] The pumping unit is connected to the stirring unit and is used to deliver the stirred mud to the salt well cavity.

[0011] In some embodiments, the stirring unit includes a stirring barrel, a stirring frame and a driving module. The stirring barrel is provided with a stirring chamber. The stirring frame is rotatably connected to the stirring barrel and extends to the stirring chamber. The driving module is connected to the stirring frame for driving the stirring frame to rotate.

[0012] In some embodiments, the dilution channel is connected to the stirring barrel, and the dilution chamber is disposed in the dilution channel and communicated with the stirring chamber.

[0013] In some embodiments, the bottom wall of the dilution channel is inclined downward toward the mixing barrel.

[0014] In some embodiments, the drive module is a motor.

[0015] In some embodiments, the stirring frame is provided with a plurality of stirring blades, the stirring blades are evenly spaced along the axial direction of the stirring frame, and each of the stirring blades is provided with a stirring hole.

[0016] In some embodiments, the stirring unit further includes a partition plate, which is disposed inside the stirring barrel and enclosed with the side wall of the stirring barrel to form a sludge chamber, the sludge chamber is connected to the stirring chamber, and the sludge suction end of the pumping unit extends to the sludge chamber.

[0017] In some embodiments, the partition plate is provided with a plurality of connecting holes, and the connecting holes are used for the sludge in the stirring chamber to enter the sludge chamber.

[0018] In some embodiments, the drilling mud processing system further includes a filter screen, which is installed in the dilution channel and is used to filter the mud entering the stirring chamber through the dilution channel.

[0019] In some embodiments, a socket is provided on the surface of the dilution channel, and slots are provided on the side walls and the bottom wall of the dilution channel. The filter is inserted into the slots and can be removed from the dilution channel through the socket.

[0020] In some embodiments, the drilling mud processing system further comprises an air pipe, which is connected to the dilution unit and extends to the dilution chamber, and is used to be connected to an air supply device so as to blow air into the dilution chamber through the air supply device.

[0021] Compared with the prior art, the beneficial effects of the drilling mud treatment system of the utility model include: by setting a dilution unit, a dispersion unit, a stirring unit and a pumping unit, the dilution unit is provided with a dilution chamber, the mud to be treated can be first passed into the dilution chamber, the dispersion unit is connected to the dilution unit, and the diluted mud can be dispersed and diluted by flushing water into the dilution chamber, the stirring unit is connected to the dilution unit, the mud diluted by the dilution unit is passed into the stirring unit, and the stirring unit stirs the mud, thereby ensuring the uniformity of mud dilution, and the stirred dilute emulsion mud is sent to the unused salt well dissolution cavity through the pumping unit, thereby realizing the harmless treatment of the mud, while avoiding mud pollution to the ground, the mud treatment cost can be effectively reduced, and at the same time, the dilute mud can be precipitated to the bottom of the salt well, to realize the filling of the hollow area at the bottom of the salt well, thereby slowing down the damage to the ground caused by the collapse of the salt well roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a drilling mud processing system provided by an embodiment of the utility model;

[0023] Among them, the reference numerals in the figure are:

[0024] 10—Dilution unit 11—Dilution chamber 12—Dilution channel

[0025] 13—support frame 20—flushing unit 21—main pipe

[0026] 22—Branch pipe 23—Valve 30—Stirring unit

[0027] 31 - Mixing barrel 32 - Mixing frame 33 - Driving module

[0028] 34 - spacer plate 40 - pumping unit 41 - mud pipe

[0029] 42 - Mud pump 50 - Filter screen 60 - Air pipe

[0030] 121—socket 122—slot 311—stirring chamber

[0031] 321 - stirring blade 322 - stirring hole 341 - sludge chamber

[0032] 342—Connecting hole. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0034] The embodiment of the utility model provides a drilling mud treatment system, which dilutes the salt-containing waste mud generated during the drilling process and passes it into the salt well cavity, thereby achieving low-cost harmless treatment of the salt-containing waste mud, thereby solving the technical problem of high treatment cost of drilling waste mud in the prior art.

[0035] The drilling mud processing system of the utility model embodiment is as follows Figure 1 As shown, it includes a dilution unit 10, a dispersing unit 20, a stirring unit 30 and a pumping unit 40. The dilution unit 10 is provided with a dilution chamber 11, and the dilution chamber 11 is used to accommodate mud; the dispersing unit 20 is connected to the dilution unit 10, and is used to disperse the mud in the dilution chamber 11; the stirring unit 30 is connected to the dilution unit 10, and is used to stir the diluted mud; the pumping unit 40 is connected to the stirring unit 30, and is used to deliver the stirred mud to the salt well.

[0036] Specifically, the drilling mud treatment system is provided with a dilution unit 10, a dispersing unit 20, a stirring unit 30 and a pumping unit 40. The dilution unit 10 is provided with a dilution chamber 11. When the waste mud is treated, the drilling mud treatment system can be arranged on one side of the salt well. The mud to be treated can first be passed into the dilution chamber 11. The dispersing unit 20 is connected to the dilution unit 10. The diluted mud can be dispersed and diluted by flushing water into the dilution chamber 11. The stirring unit 30 is connected to the dilution unit 10. Since the dispersed mud has some blocks, the mud can be dispersed and diluted by flushing water into the dilution chamber 11. The mud diluted by the dilution unit 10 is then passed into the stirring unit 30, so that the stirring unit 30 stirs the mud, thereby ensuring the uniformity of the mud dilution. The stirred thin emulsion mud is sent to the unused salt well cavity through the pumping unit 40, thereby realizing the harmless treatment of the mud. While avoiding the pollution of the ground by the mud, the mud treatment cost can be effectively reduced. At the same time, the thin mud can be precipitated to the bottom of the salt well, and the hollow area at the bottom of the salt well is filled, thereby slowing down the damage to the ground caused by the collapse of the roof of the salt well cavity.

[0037] It can be understood that the dilution unit 10 can be any container that can accommodate waste mud, such as a tank or a cylinder. After the mud is dispersed by the dispersing unit 20, it is transported to the stirring unit 30 via conveying equipment such as a belt and a pump.

[0038] In one embodiment, the dilution unit 10 includes a dilution channel 12. Specifically, when the mud is processed, the mud is first passed into the dilution channel 12, and the mud is dispersed in the dilution channel 12 by the dispersing unit 20. The dispersed mud flows along the dilution channel 12 toward the stirring unit 30, and finally enters the stirring unit 30.

[0039] In one embodiment, the dilution unit 10 further includes a support frame 13 , one end of the support frame 13 is fixed to the dilution channel 12 , and the other end of the support frame 13 is supported on the ground.

[0040] It can be understood that the dispersing unit 20 can be a water pump and a water pipe connected to the water pump and extending to the dilution chamber 11 , and the water pump disperses the slurry in the dilution chamber 11 by pumping water or any other liquid into the water pipe.

[0041] In this embodiment, the dispersing unit 20 disperses the mud clumps by flushing brine high-pressure water into the dilution chamber 11. After the brine high-pressure water disperses the mud, it is passed into the stirring unit 30 together with the mud, and is fully mixed with the mud under the stirring of the stirring unit 30. Finally, it enters the abandoned salt well cavity together with the pumping unit 40. After entering the salt well cavity, the brine can be replaced from the cavity, thereby realizing the recycling of salt resource components.

[0042] In this embodiment, the dispersing unit 20 includes a main pipe 21, a plurality of branch pipes 22 and a valve 23. The main pipe 21 is used to connect the pump body. One end of each branch pipe 22 is connected to the main pipe 21, and the other end of each branch pipe 22 is connected to the dilution channel 12 and extends to the dilution chamber 11. The valve 23 is respectively installed on each branch pipe 22. When the valve 23 is opened, the pump body pumps brine high-pressure fresh water to the main pipe 21, and the brine high-pressure water enters the dilution chamber 11 through each branch pipe 22 and rushes toward the mud, thereby dispersing the mud. While increasing the fresh water pressure, each branch pipe 22 can also facilitate the adjustment of the dispersing direction.

[0043] In this embodiment, the dispersing unit 20 also includes a high-pressure water gun (not shown in the figure), which is installed on each branch pipe 22 and located in the dilution chamber 11. The high-pressure water gun sprays high-pressure water into the dilution chamber 11 to disperse the mud in the dilution chamber 11.

[0044] It can be understood that the stirring unit 30 can be a stirring bracket installed on the dispersing unit, and the stirring bracket stirs the dispersed mud by stirring the inside of the dilution chamber 11. The stirring unit 30 can also be a driving device of a stirring drum, the stirring drum contains the dispersed mud, and the driving device drives the stirring drum to rotate to stir the mud.

[0045] In one embodiment, the mixing unit 30 includes a mixing barrel 31, a mixing frame 32 and a driving module 33. The mixing barrel 31 is provided with a mixing chamber 311. The mixing frame 32 is rotatably connected to the mixing barrel 31 and extends to the mixing chamber 311. The driving module 33 is connected to the mixing frame 32 and is used to drive the mixing frame 32 to rotate. Specifically, after the mud is dispersed and enters the mixing chamber 311, the driving module 33 drives the mixing frame 32 to rotate, so that the mixing frame 32 stirs the mud, thereby breaking up the blocky mud and making the mud uniform.

[0046] In one embodiment, the dilution channel 12 is connected to the stirring barrel 31, and the dilution chamber 11 is disposed in the dilution channel 12 and communicates with the stirring chamber 311. Specifically, after the mud is dispersed and diluted by the dispersion unit 20 in the dilution channel 12, it flows along the dilution chamber 11 and enters the stirring chamber 311.

[0047] In one embodiment, the bottom wall of the dilution channel 12 is inclined downward toward the mixing barrel 31. Specifically, through this arrangement, the dispersed mud will naturally flow toward the mixing barrel under the action of gravity, thereby achieving stable transportation of the dispersed mud to the mixing barrel 31 and avoiding additional energy consumption during the transportation process.

[0048] In one embodiment, the stirring frame 32 is provided with a plurality of stirring blades 321, and the stirring blades 321 are evenly spaced along the axial direction of the stirring frame 32, and each stirring blade 321 is provided with a stirring hole 322. Specifically, the stirring frame 32 can achieve the stirring of the mud through the stirring blades 321, and the stirring blades 321 are provided with the stirring holes 322, thereby reducing the resistance of the stirring frame 32, accelerating the stirring efficiency of the mud, and improving the stirring quality of the mud.

[0049] In one embodiment, the stirring unit 30 further includes a partition plate 34, which is disposed inside the stirring barrel 31 and enclosed with the side wall of the stirring barrel 31 to form a thin mud chamber 341, the thin mud chamber 341 is communicated with the stirring chamber 311, and the mud pumping end of the pumping unit 40 extends to the thin mud chamber 341. Specifically, the stirred mud will enter the thin mud chamber 341, and then be transported to the abandoned salt well dissolution cavity by the pumping unit 40, thereby preventing the block mud from entering the pumping unit 40 and causing damage to the pumping unit 40.

[0050] It can be understood that the partition plate 34 can be connected with the stirring chamber 311 by providing an overflow port, a connecting port and other structures.

[0051] In one embodiment, the partition plate 34 is provided with a plurality of connecting holes 342, and the connecting holes 342 are used to allow the thin mud in the stirring chamber 311 to enter the thin mud chamber 341. Specifically, the mud dispersed and stirred evenly by the stirring frame 32 can enter the thin mud chamber 341 through the connecting holes 342, while the block mud will continue to stay in the stirring chamber 311 for further stirring, thereby preventing the block mud from entering the pumping unit 40.

[0052] It can be understood that the pumping unit 40 can be any delivery pump structure that is disposed in the stirring chamber 311 or the sludge chamber 341 , or is connected to the stirring chamber 311 or the sludge chamber 341 through a pipeline.

[0053] In one embodiment, the pumping unit 40 includes a mud pipe 41 and a mud pump 42. One end of the mud pipe 41 extends to the thin mud chamber 341, and the other end of the mud pipe 41 extends to the unused salt well cavity. The mud pump 42 is installed in the mud pipe 41. While the stirring unit 30 is stirring, the mud pump 42 transports the evenly stirred mud to the salt well cavity through the mud pipe 41, thereby realizing low-cost harmless treatment of the mud.

[0054] In one embodiment, the drilling mud processing system further includes a filter 50, which is installed in the dilution channel 12 and is used to filter the mud entering the stirring chamber 311 through the dilution channel 12. Specifically, the filter 50 can prevent impurities and large-sized mud blocks from entering the stirring unit 30, and protect the stirring unit 30 and the pumping unit 40.

[0055] In one embodiment, a socket 121 is provided on the surface of the dilution channel 12, and slots 122 are provided on the side walls and the bottom wall of the dilution channel 12. The filter 50 is inserted into the slot 122 and can be removed from the dilution channel 12 through the socket 121. Specifically, when the filter 50 needs to be cleaned or replaced, the filter 50 can be removed from the socket 121, and the slot 122 can provide a limit for the filter 50 to prevent the filter 50 from deflecting under the impact of the mud.

[0056] In one embodiment, the drilling mud processing system further includes an air pipe 60, which is connected to the dilution unit 10 and extends to the dilution chamber 11, and is used to connect to an air supply device so as to blow air into the dilution chamber 11 through the air supply device. Specifically, during the mud dispersion process, the air supply device can also be connected to the air pipe 60, and by supplying air to the air pipe 60, the dispersion unit 20 is assisted to disperse the mud, and a driving force is provided for the mud to flow toward the stirring unit 30.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling mud processing system, characterized in that: include: A dilution unit is provided with a dilution chamber, wherein the dilution chamber is used to contain mud; A dispersing unit, connected to the dilution unit, for dispersing the slurry in the dilution chamber; A stirring unit connected to the dilution unit and used for stirring the diluted mud; and The pumping unit is connected to the stirring unit and is used to deliver the stirred mud to the salt well cavity.

2. The drilling mud processing system according to claim 1, characterized in that: The stirring unit includes a stirring barrel, a stirring frame and a driving module. The stirring barrel is provided with a stirring chamber. The stirring frame is rotatably connected to the stirring barrel and extends to the stirring chamber. The driving module is connected to the stirring frame and is used to drive the stirring frame to rotate.

3. The drilling mud processing system according to claim 2, characterized in that: The stirring frame is provided with a plurality of stirring blades, the stirring blades are evenly spaced along the axial direction of the stirring frame, and each stirring blade is provided with a stirring hole.

4. The drilling mud processing system according to claim 2, characterized in that: The stirring unit further comprises a partition plate, which is arranged inside the stirring barrel and enclosed with the side wall of the stirring barrel to form a sludge chamber, the sludge chamber is communicated with the stirring chamber, and the sludge pumping end of the pumping unit extends to be located in the sludge chamber.

5. The drilling mud processing system according to claim 4, characterized in that: The partition plate is provided with a plurality of communicating holes, and the communicating holes are used for the sludge in the stirring chamber to enter the sludge chamber.

6. The drilling mud processing system according to claim 2, characterized in that: The dilution unit comprises a dilution channel connected to the stirring barrel, and the dilution chamber is arranged in the dilution channel and communicated with the stirring chamber.

7. The drilling mud processing system according to claim 6, characterized in that: The bottom wall of the dilution channel is inclined downward toward the stirring barrel.

8. The drilling mud processing system according to claim 6, characterized in that: The drilling mud processing system also includes a filter screen, which is installed in the dilution channel and is used to filter the mud entering the stirring chamber through the dilution channel.

9. The drilling mud processing system according to claim 8, characterized in that: The surface of the dilution channel is provided with an insertion opening, the side wall and the bottom wall of the dilution channel are provided with slots, the filter screen is inserted in the slots, and can be removed from the dilution channel through the insertion opening.

10. The drilling mud processing system according to any one of claims 1 to 9, characterized in that: The drilling mud processing system further comprises an air pipe, which is connected to the dilution unit and extends to the dilution chamber, and is used to be connected to an air supply device so as to blow air into the dilution chamber through the air supply device.

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