CN216377876U

CN216377876U - Oil drilling is along with boring clean minimizing equipment system of abandonment oil base mud

Info

Publication number: CN216377876U
Application number: CN202120553831.7U
Authority: CN
Inventors: 赵勇
Original assignee: Tianjin Fanyindetai Petroleum Environmental Protection Technology Development Inc
Current assignee: Tianjin Fanyindetai Petroleum Environmental Protection Technology Development Inc
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2022-04-26
Anticipated expiration: 2031-03-17

Abstract

The invention relates to the technical field of petroleum drilling waste oil-based mud treatment, in particular to a petroleum drilling waste oil-based mud while-drilling cleaning and reduction equipment system method. The equipment structure comprises a support, wherein a first spiral conveyer is arranged on the support, one end of the first spiral conveyer is fed, the other end of the first spiral conveyer is connected with a drying machine, the drying machine is connected with a horizontal centrifuge through a pipeline on the outer wall of a shell of the drying machine, a second spiral conveyer is arranged at an outlet below the drying machine, a slurry outlet of the horizontal centrifuge is communicated with the second spiral conveyer, and the horizontal centrifuge is communicated with a drilling well through a pipeline and is used for conveying the processed waste oil-based slurry to drill the drilling well. The invention relates to a cleaning and reducing equipment system for waste oil-based mud while drilling in petroleum drilling, which adopts mud non-landing equipment to reduce and recycle waste mud, and can realize mud-water separation and reutilization of waste mud and rock debris.

Description

Oil drilling is along with boring clean minimizing equipment system of abandonment oil base mud

Technical Field

The invention relates to the technical field of physical treatment of waste oil-based mud in petroleum drilling, in particular to a cleaning and reducing equipment system for waste oil-based mud while drilling in petroleum drilling.

Background

Oil-based muds, also known as oil-based drilling fluids, consist essentially of oil, water, organoclays and oil-soluble chemical treatments. The oil-based mud resists high temperature and salt and calcium erosion, is beneficial to well wall stability, has good lubricity and little damage to oil and gas reservoirs, and is widely applied to various drilling platforms.

The research shows that the drilling oil-based mud generally used in the oil fields in China has strong basicity, high corrosivity and difficult transportation due to the chemical composition, and the waste oil-based mud contains harmful substances such as oil, organic matters, heavy metals and the like.

In the process of petroleum drilling, the petroleum drilling waste slurry directly falls into the ground, which brings great pollution and damage to soil, vegetation and water sources and brings serious influence on the sustainable development of the later period of an oil field.

Under the prior art, the waste oil-based mud is treated by adopting a while-drilling treatment mode under the condition that the waste oil-based mud is treated by a non-landing device in the prior art. The square floor area of the well drilling is small, large-size equipment is not favorably arranged, the oil-based mud is conveyed by a propeller at an angle of less than 30 degrees, the conveyor is too long, and the floor area is large; and the forklift end needs a bucket lifting procedure, and the operation is complex.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a petroleum drilling while-drilling waste oil-based mud cleaning and reducing equipment system, which adopts mud non-landing equipment to reduce and recycle waste mud, and can realize mud-water separation and reutilization of waste mud and rock debris.

The technical scheme adopted by the invention is as follows:

the utility model provides an oil drilling is along with clean minimizing equipment system of abandonment oil base mud, includes the support, is provided with first screw conveyer on the support, first screw conveyer one end feeding, the other end connection drier, drier pass through the pipe connection horizontal centrifuge on its casing outer wall, drier below export set up second screw conveyer, horizontal centrifuge's mud export intercommunication second screw conveyer, horizontal centrifuge pass through the pipeline intercommunication well drilling for carry the abandonment oil base mud of handling and carry out the well drilling probing.

Be provided with first storage jar on the pipeline between drier and the horizontal centrifuge, first storage jar in be provided with submerged sediment stuff pump.

The front end of the first screw conveyer is provided with a slurry storage tank, and a stirrer is arranged in the slurry storage tank.

A feeding hopper is arranged above the feeding end of the first screw conveyor.

A single-bucket elevator is arranged on one side of the feeding hopper.

Single bucket lifting machine includes the base, base top be fixed with the frame of slope, the frame in be provided with the back slide rail, support the place ahead be provided with a pair of preceding slide rail, preceding slide rail lower part with the frame in the back slide rail parallel, preceding slide rail upper portion be the arc to the place ahead bending, preceding slide rail and back slide rail between be provided with the slip car fill, the front portion of slip car fill be provided with preceding pulley, preceding pulley inlay card be in preceding slide rail in and slide in the preceding slide rail, the rear portion of slip car fill be provided with the back pulley, the back pulley be in the back slide rail slide, and be connected with the chain on the back pulley, the chain upwards pass through behind the sprocket on frame top, downwards connect the motor that sets up on the base.

A method for cleaning and reducing waste oil-based mud while drilling in petroleum drilling comprises the following steps:

A. waste drilling mud generated in the petroleum drilling process is received by a first spiral conveyor, and the mud is conveyed to a drying machine by a shaftless spiral conveyor;

B. screening out large rock debris particles by the spin dryer, conveying the screened large rock debris particles to a solid-phase material area by a second screw conveyor, feeding separated slurry into a first slurry storage tank, pumping the slurry into a horizontal centrifuge by a submerged slurry pump for mud-water separation, separating large coarse-grained sediment by the horizontal centrifuge, and conveying the separated large coarse-grained sediment to the solid-phase material area by the second screw conveyor;

C. the separated mud is recycled to the drilling process through a mud pump.

When the mud amount is large, part of mud enters a mud storage tank, a stirrer is arranged in the mud storage tank, and the mud is pumped into a spin dryer for subsequent treatment by a submerged slurry pump after the mud generation amount is stable.

When the slurry viscosity is small and thick, the slurry cannot be conveyed to the centrifugal machine through the shaftless screw conveyer, the slurry can enter the first storage tank through a pipeline at the joint of the first screw conveyer and the shaftless screw conveyer, the stirring machine is arranged in the first storage tank, and the slurry is pumped into the centrifugal machine by the submerged slurry pump to be subjected to subsequent treatment.

The technical scheme provided by the invention has the beneficial effects that:

1. the mud is received in a non-landing mode, so that the increase of rainwater in rainy seasons is avoided, the generation of the waste mud in petroleum drilling is reduced, and the pollution of the waste mud to the environment is reduced.

2. The oil-based mud is recycled, the using amount of the produced oil-based mud is reduced, and the production cost in the oil drilling process is reduced.

3. Changes the high investment cost of fixed factory building and the mode that the dispersive sludge is not beneficial to long-distance transportation.

4. The cost of pollution control is reduced, and the occurrence of secondary pollution is controlled.

5. The equipment adopts a movable skid-mounted type, is convenient to move, saves occupied land and has short matching period.

6. The system has the advantages of optimized process flow, compact layout, high operation efficiency and low use cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a front view of the overall structure of a petroleum drilling while-drilling waste oil-based mud cleaning and reducing equipment system;

FIG. 2 is a partial structural top view of the oil drilling while drilling waste oil-based mud cleaning and reducing equipment system according to the invention;

fig. 3 is a left structural view of the oil drilling while drilling waste oil-based mud cleaning and reducing equipment system according to the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example one

As shown in the accompanying drawings 1-3, the oil drilling while-drilling waste oil-based mud cleaning and reduction equipment system comprises a support 1, wherein a first spiral conveyor 2 is arranged on the support 1, one end of the first spiral conveyor 2 is used for feeding, the other end of the first spiral conveyor is connected with a drying machine 3, the drying machine 3 is connected with a horizontal centrifuge 4 through a pipeline on the outer wall of a machine shell of the drying machine 3, a second spiral conveyor 5 is arranged at an outlet below the drying machine 3, a mud outlet of the horizontal centrifuge 4 is communicated with the second spiral conveyor 5, and the horizontal centrifuge 4 is communicated with a drilling well through a pipeline and used for conveying the treated waste oil-based mud to drill the drilling well.

Be provided with first storage jar on the pipeline between drier 3 and horizontal centrifuge 4, first storage jar in be provided with the submerged sediment stuff pump.

A slurry storage tank is arranged at the front end of the first screw conveyor 1, and a stirrer is arranged in the slurry storage tank.

In addition, the mud storage jar still gets into the ground jar through the pipeline of first positive and negative auger delivery ware 1 and shaftless auger delivery machine handing-over mouth department, establishes the mixer in the ground jar, the ground jar squeeze into drier 3 with mud through the submerged sediment stuff pump.

A feeding hopper 6 is arranged above the feeding end of the first screw conveyor.

A single bucket elevator 7 is arranged on one side of the feeding hopper 6.

The single bucket elevator 7 comprises a base 71, an inclined frame 72 is fixed above the base 71, a rear slide rail is arranged in the frame 72, a pair of front slide rails 73 is arranged in front of the bracket 72, the lower part of the front slide rail 73 is parallel to the rear slide rail of the frame 72, the upper part of the front slide rail 73 is bent forwards in an arc shape, a sliding hopper 74 is arranged between the front sliding rail 73 and the rear sliding rail, a front pulley 75 is arranged at the front part of the sliding hopper 74, the front pulley 75 is embedded in the front slide rail 73 and slides in the front slide rail 73, the rear part of the sliding car hopper 74 is provided with a rear pulley, the rear pulley slides in the rear slide rail, and the rear pulley is connected with a chain 76, and the chain 76 is connected with a motor 78 arranged on the base 71 after passing through a chain wheel 77 at the top end of the rack 72 upwards.

The embodiment also provides a method for cleaning and reducing the abandoned oil-based mud while drilling in the petroleum drilling process, wherein the abandoned drilling mud generated in the petroleum drilling process is received by the first screw conveyor 1, and the mud can be conveyed to the drier 3 by the shaftless screw conveyor; the spin dryer 3 is used for screening out large rock debris particles and then conveying the large rock debris particles to a solid-phase material area through the second screw conveyor 5, separated slurry enters a first slurry storage tank and is pumped into the horizontal centrifuge 4 through a submerged slurry pump for sludge-water separation, and the horizontal centrifuge 4 is used for separating large coarse-grained sediment and then conveying the large coarse-grained sediment to the solid-phase material area through the second screw conveyor 5; the separated mud is recycled to the drilling process through a mud pump.

When the mud amount is large, part of mud enters a mud storage tank, a stirrer is arranged in the mud storage tank, and the mud is pumped into a spin dryer 3 for subsequent treatment by a submerged slurry pump after the mud generation amount is stable; when the slurry viscosity is small and thick, the slurry cannot be conveyed to the centrifuge 3 through the shaftless screw conveyor, the slurry can enter the first storage tank through a pipeline at the joint of the first screw conveyor 1 and the shaftless screw conveyor, the stirrer is arranged in the first storage tank, and the slurry is pumped into the centrifuge 3 by the submerged slurry pump to be subjected to subsequent treatment.

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 invention, 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 oil drilling while-drilling waste oil-based mud cleaning and reduction equipment system comprises a support and is characterized in that a first spiral conveyer is arranged on the support, one end of the first spiral conveyer feeds materials, the other end of the first spiral conveyer is connected with a drying machine, the drying machine is connected with a horizontal centrifuge through a pipeline on the outer wall of a shell of the drying machine, a second spiral conveyer is arranged at an outlet below the drying machine, a mud outlet of the horizontal centrifuge is communicated with the second spiral conveyer, and the horizontal centrifuge is communicated with a drilling well through a pipeline and used for conveying the treated waste oil-based mud to drill the drilling well.

2. The oil drilling while-drilling waste oil-based mud cleaning and reducing equipment system as claimed in claim 1, wherein a first storage tank is arranged on a pipeline between the spin dryer and the horizontal centrifuge, and a submerged slurry pump is arranged in the first storage tank.

3. The oil drilling while drilling waste oil-based mud cleaning and reducing equipment system as claimed in claim 1, wherein a mud storage tank is arranged at the front end of the first screw conveyor, and a stirrer is arranged in the mud storage tank.

4. The oil drilling abandoned oil based mud cleaning and reduction equipment system as claimed in claim 1, wherein a feeding funnel is arranged above the feeding end of the first screw conveyor.

5. The oil drilling abandoned oil-based mud while drilling cleaning and reduction equipment system as claimed in claim 4, wherein a single bucket elevator is arranged on one side of the feeding hopper.

6. The oil drilling abandoned oil-based mud while drilling cleaning and reduction equipment system according to claim 5, wherein the single bucket elevator comprises a base, an inclined frame is fixed above the base, a rear slide rail is arranged in the frame, a pair of front slide rails is arranged in front of the support, the lower parts of the front slide rails are parallel to the rear slide rail in the frame, the upper parts of the front slide rails are bent forwards to form an arc shape, a sliding bucket is arranged between the front slide rail and the rear slide rail, the front part of the sliding bucket is provided with front pulleys, the front pulleys are clamped and embedded in the front slide rails and slide in the front slide rails, the rear part of the sliding bucket is provided with rear pulleys, the rear pulleys slide in the rear slide rails, chains are connected on the rear pulleys, and the chains pass upwards through chain wheels at the top end of the frame, the motor is arranged on the base in a downward connection mode.