CN213915442U

CN213915442U - Oil-based rock debris while-drilling integrated treatment device

Info

Publication number: CN213915442U
Application number: CN202121601731.3U
Authority: CN
Inventors: 罗顺祥; 张伟伟; 杜莲龙; 罗志文; 杨勇; 卢耀平; 刘锐
Original assignee: Xishida Environmental Technology Chengdu Co ltd
Current assignee: Xishida Environmental Technology Chengdu Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-08-10
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses an oil base detritus is along with boring integration processing apparatus, include: the negative pressure vibrating screen is connected with two passages, the first passage passes through the dry distillation pyrolysis purification device which is connected with the two passages, one passage passes through the internal spiral conveyor to cool and discharge solid residues, the other passage passes through the disc centrifuge for the cooled liquid phase, the disc centrifuge separates out solid, oil and water, the oil outlet is connected with the carbon tank, the other end of the carbon tank is connected with the slurry distribution tank, the oil is adsorbed and filtered through the carbon tank, the residual substances enter the slurry distribution tank to be recycled, the water outlet is connected with the stirrer and the slurry distribution tank, the solid is recycled to the piston pump to be pyrolyzed again, the second passage separates solid and liquid slurry through the sand and mud remover, the solid is recycled to the piston pump to be pyrolyzed again, the liquid enters the circulating tank to be reused, the effects of circulating energy conservation and environmental protection are achieved, the operation is simple and the achievement is obvious, and the requirement that the materials do not fall to the ground in the treatment process is met at the same time, is more environment-friendly.

Description

Oil-based rock debris while-drilling integrated treatment device

Technical Field

The utility model relates to an oil base detritus technical field, concretely relates to oil base detritus is along with boring integration processing apparatus.

Background

With the rapid development of the world economy, the demand of people for oil is increasing, and oil fields need to be drilled with a plurality of oil and gas wells every year, and when oil-based mud is used for drilling, a large amount of oil sludge (oil-based drill cuttings) is generated. Oil-based cuttings are typically composed of oil, water, bitumen, drill cuttings, high molecular compounds, and other impurities. The content of mineral oil is more than 20%, the substances are usually difficult to degrade in the environment, belong to special dangerous waste, enter the natural environment and cause serious soil and underground water pollution accidents, cause serious damage to the ecological environment and directly cause harm to human health.

The waste oil-based mud belongs to dangerous waste, when oil-based drilling cuttings are treated, drilling cuttings such as a thermal desorption method and a drying machine dehydration method, an oil-water separation method and the like are generally adopted, diesel oil in the waste oil-based mud is recovered and used for preparing oil-based drilling mud or recovering units with waste mineral oil treatment quality, and the processes of collecting, storing, transporting, utilizing and disposing the waste oil-based mud and the oil-based drilling cuttings are required to adopt measures of preventing scattering, loss and leakage and preventing other environmental pollution.

The utility model discloses utilize a section to be applicable to the integration fatlute dry distillation pyrolysis purification device that sled dress platform used, the publication number is CN212982876U, it handles the toxic substance of solid phase and liquid phase through its reducing furnace and purification stove, earlier through the high temperature flue gas in the flue and the fatlute in the heating device heating reducing furnace, make its schizolysis, the slag charge after the purification is discharged to the discharge opening department to the external world by the propelling movement, gas ignites in the purification furnace after the condensation, realized that the energy consumption is low, the environmental protection, the treatment cost is low. The utility model discloses an use a series of equipment such as negative pressure shale shaker, disk centrifuge and dry distillation pyrolysis purification device, realized having had the circulation effect simultaneously to the proper treatment of oil base detritus, practice thrift the cost in the time of pollution reduction, the utility model discloses whole journey has realized not falling to the ground, purifies with the effectual of processing, great reduction the pollution.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides an oil base detritus is along with boring integration processing apparatus has high-efficient meticulous processing order and link, has improved the guard action to the environment greatly, and the while use that circulates has effectually practiced thrift material and cost.

The utility model adopts the following technical proposal:

the oil-based detritus integrated processing device while drilling comprises a negative pressure vibrating screen, wherein the negative pressure vibrating screen is connected with two passages, one passage is sequentially connected with a piston pump and a destructive distillation pyrolysis purification device, the destructive distillation pyrolysis purification device is connected with the two passages, the first passage is connected with an internal screw conveyor, the second passage is connected with a disc centrifuge, the disc centrifuge is respectively connected with a carbon tank and a stirrer, the stirrer is connected with a slurry distribution tank, the carbon tank is connected with a slurry distribution tank, the slurry distribution tank is connected with a circulating tank, the other passage is sequentially connected with a slurry tank, a sand and mud removing device and the circulating tank, a wellhead is connected with the negative pressure vibrating screen for sieving, solids enter the destructive distillation pyrolysis purification device through the piston pump to be separated and processed according to solid phase and liquid phase, the solid phase enters the internal screw conveyor, the liquid phase enters the disc centrifuge to be separated into oil and water according to different centrifugal forces of different substances, the oil and water are treated and then mixed, the liquid from the negative pressure vibrating screen enters a mud tank and is purified by a sand and mud remover, and the liquid entering a circulating tank and the liquid in a slurry mixing tank are mixed and then enter a wellhead.

Preferably, the disk centrifuge is connected with the piston pump, and the solid separated by the disk centrifuge enters the dry distillation pyrolysis purification device again through the piston pump to be subjected to dry distillation pyrolysis, so that the purification effect is improved.

Preferably, the piston pump is connected to the desanding and desilting ware, and the solid that the desanding and desilting ware separated gets into dry distillation pyrolysis purifier through the piston pump and carries out retreatment, improves purifying effect.

Preferably, the circulation tank is connected with a mud pump, so that mud in the circulation tank can be conveniently pumped into the well mouth.

Preferably, the water tank is arranged outside the inner spiral conveyor for cooling, and solid residues in the inner spiral conveyor are high in temperature due to pyrolysis and are cooled by the water tank.

The utility model has the advantages that:

the utility model has the advantages of perfect processing procedure, convenient to use has realized the design that oil base detritus was handled along with boring integration, and the material has realized not falling to the ground in the processing procedure, has optimized the pollution to the environment that has significantly reduced when the method of handling, has realized the reuse of oil base detritus, has environmental protection, energy-conservation, high efficiency and easy operation.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

FIG. 1 is a schematic structural view of the present invention;

in the figure:

1-negative pressure vibrating screen, 2-piston pump, 3-dry distillation pyrolysis purification device, 4-internal spiral conveyer, 5-disc centrifuge, 6-mud tank, 7-carbon tank, 8-stirrer, 9-slurry preparation tank, 10-circulation tank, 11-sand and mud remover and 12-mud pump.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1, the oil-based rock debris while drilling integrated treatment device comprises a negative pressure vibrating screen 1, wherein oil-based rock debris discharged from a wellhead enters the negative pressure vibrating screen 1, the negative pressure vibrating screen 1 screens the oil-based rock debris, the negative pressure vibrating screen 1 is connected with two passages, the first passage is sequentially connected with a piston pump 2 and a destructive distillation pyrolysis purification device 3, the destructive distillation pyrolysis purification device 3 is connected with the two passages, one passage is connected with an inner screw conveyor 4, a water tank is arranged outside the inner screw conveyor 4, the water tank cools materials in the inner screw conveyor 4, the passage is screened, the oil-based rock debris enters the destructive distillation pyrolysis purification device 3 through the piston pump 2, the decomposed solid phase enters the inner screw conveyor 4, and the solid phase is cooled through the water tank outside the inner screw conveyor 4 and then discharged.

The other path is connected with a disc centrifuge 5, the disc centrifuge 5 is respectively connected with a carbon tank 7, a stirrer 8 and a piston pump 2, the stirrer 8 is connected with a slurry distribution tank 9, the carbon tank 7 is connected with the slurry distribution tank 9, the slurry distribution tank 9 is connected with a circulating tank 10, a dry distillation pyrolysis purification device 3 separates a cooled liquid phase through the disc centrifuge 5, the disc centrifuge separates the liquid phase into solid, oil and water according to different centrifugal forces, the solid is recycled to the piston pump 2 for secondary dry distillation pyrolysis treatment, the oil is adsorbed and filtered through the carbon tank 7, colloid and the like in the oil are filtered, the filtered oil enters the slurry distribution tank 9 for recycling, the water enters the stirrer 8 and is added with CaCl simultaneously₂Stirring, adding into slurry mixing tank 9, mixing the water in slurry mixing tank 9 and the oil filtered by carbon tank 7 at a ratio of 2:8, and adding corresponding amount of additive according to requirementAnd finally into the recycle tank 10.

The second path connects gradually mud tank 6, desanding and desilting ware 11, circulating tank 10, and the liquid that negative pressure shale shaker 1 produced after sieving gets into mud tank 6, and the liquid that separates after the purification through desanding and desilting ware 11 gets into circulating tank 10, and the solid of separation gets into piston pump 2, carries out the processing of once more through dry distillation pyrolysis purifier 3, improves the effect of handling.

The liquid entering the circulation tank 10 passes through a mud pump 12 and then is added to the wellhead for circulation.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.

Claims

1. The utility model provides an oil base detritus is along with boring integration processing apparatus which characterized in that includes: negative pressure shale shaker (1), negative pressure shale shaker (1) is connected with two passageways, and a passageway connects gradually piston pump (2), dry distillation pyrolysis purifier (3), two passageways are connected in dry distillation pyrolysis purifier (3), and interior screw conveyer (4) are connected to first passageway, and dish centrifuge (5) is connected to second passageway, carbon tank (7) and agitator (8) are connected respectively in dish centrifuge (5), and agitator (8) are connected and are joined in marriage thick liquid jar (9), carbon tank (7) are connected and are joined in marriage thick liquid jar (9), join in marriage thick liquid jar (9) and connect circulation tank (10), and another passageway connects gradually mud jar (6), sand removal mud remover (11), circulation tank (10).

2. The integrated while drilling treatment device for the oil-based rock cuttings as claimed in claim 1, wherein the disc centrifuge (5) is connected with a piston pump (2).

3. The integrated while drilling treatment device for the oil-based rock cuttings as claimed in claim 1, wherein the sand and mud remover (11) is connected with a piston pump (2).

4. The integrated while drilling treatment device for the oil-based rock cuttings as claimed in claim 1, wherein the circulation tank (10) is connected with a mud pump (12).

5. The integrated while drilling treatment device for the oil-based rock debris as claimed in any one of claims 1 to 4, wherein a water tank is arranged outside the inner spiral conveyor (4) for cooling.