CN106150411A - Drilling fluid equipment for separating liquid from solid based on mud guard - Google Patents
Drilling fluid equipment for separating liquid from solid based on mud guard Download PDFInfo
- Publication number
- CN106150411A CN106150411A CN201610603697.0A CN201610603697A CN106150411A CN 106150411 A CN106150411 A CN 106150411A CN 201610603697 A CN201610603697 A CN 201610603697A CN 106150411 A CN106150411 A CN 106150411A
- Authority
- CN
- China
- Prior art keywords
- screen plate
- shell
- mud guard
- ejection opening
- sediment ejection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
- E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
Abstract
The invention discloses drilling fluid equipment for separating liquid from solid based on mud guard, including shell, charging aperture, discharging opening, it is provided with sediment ejection opening on the sidewall of shell, on the inwall of shell, chain connection has the first screen plate, the movable end of the first screen plate passes sediment ejection opening, the height of sediment ejection opening end face is less than the height of hinge on outer casing inner wall, some mud guards are set on the first screen plate, some springs are installed below the first screen plate, the lower end of spring is fixed on the bottom surface of sediment ejection opening, and the underface of the first screen plate is horizontally disposed with the second screen plate.The present invention gravity by water-based drilling muds self, while while carrying out solid phase separation, while being opened sediment ejection opening by the gravity of the solid phase particles self of the movable end being deposited in the first screen plate, realize the discharge of solid phase particles, avoid the solid phase particles using auger conveyor to discharge in shell, not only reduce the risk that operator are injured, and save the use cost of device.
Description
Technical field
The present invention relates to drilling fluid reclamation field, be specifically related to drilling fluid equipment for separating liquid from solid based on mud guard.
Background technology
Drilling fluid is also referred to as drilling mud, is the general name of the various circulation of fluids used in drilling process.Drilling process
In, drilling fluid can not only effectively cool down and lubricate drill bit, is also equipped with balancing layer pressure, it is to avoid blowout and well kick occur
Effect, moreover, drilling fluid can also transmit power and coring sampling.
Different according to disperse medium, it is big that drilling fluid is broadly divided into water-base drilling fluid, oil base drilling fluid gentle base drilling fluid three
Class.
In drilling process, drilling fluid enters to bottom by drilling rod, after completing its effect with drilling well in produce useless
Slag is discharged together, owing to drilling fluid not only price is high but also understands welding, so should reclaim drilling fluid, solid controlling
System is for reclaiming drilling fluid.Solid controlling system is also called drilling-fluid circulation system and drilling fluid cleaning system.Solid controlling system
System mainly includes the solid control equipments such as drilling fluid vibrating sieve, vacuum degasser, desander, desilter, horizontal spiral centrifuge.These
Solid control equipment, just as a series of sizes, sieve that function is different, realizes the purification to drilling fluid and recycling by filtering layer by layer.
Desander is two grades of solid controlling systems of drilling fluid reclamation technique, and drilling fluid is tentatively sieving through drilling fluid vibrating sieve
After falling bigger solid phase particles, i.e. enter in desander, remove the solid phase particles that granularity is 40 ~ 80 μm contained in drilling fluid.
Traditional desander is after separating drilling fluid with solid phase particles, and solid phase particles is carried over removing by auger conveyor
Sand device, but auger conveyor is breakneck, if operator's operational error is serious by producing in practical operation
Consequence.
Summary of the invention
The technical problem to be solved is the defect for tradition desander, it is therefore intended that provide based on mud guard
Drilling fluid equipment for separating liquid from solid, for water-base drilling fluid, solve tradition desander owing to using auger conveyor easily to make
Become the problem that operator are injured.
The present invention is achieved through the following technical solutions: drilling fluid equipment for separating liquid from solid based on mud guard, including shell, institute
Stating outer casing bottom and be provided with discharging opening, the side of shell is provided with charging aperture, and described charging aperture is from be positioned at shell side
End is gradually increased to other end diameter, and the sidewall of shell is provided with sediment ejection opening, and on the inwall of shell, chain connection has the first mistake
Filter plate, the movable end of described first screen plate contacts through sediment ejection opening and the upper surface of the first screen plate with the end face of sediment ejection opening,
The height of sediment ejection opening end face, less than the height of hinge on outer casing inner wall, the first screen plate is provided with some mud guards, described gear
The projection on the first screen plate of the mud plate is in the shape of the letter V, and the angular bisector of mud guard angle is all heavy with the axis of the first screen plate
The angle of conjunction and mud guard is all towards the movable end of the first screen plate, and the lower section of the movable end of the first screen plate is provided with some
Spring, the lower end of described spring is fixed on the bottom surface of sediment ejection opening, and the underface of the first screen plate has been horizontally disposed with and has been positioned at shell
The second interior screen plate.In prior art, traditional desander is after separating drilling fluid with solid phase particles, and solid phase particles passes through
Auger conveyor is carried over desander, but auger conveyor is breakneck, if operator behaviour in practical operation
Slip up and will produce serious consequence.In order to solve the problems referred to above, the invention provides a kind of for water-based drilling muds, be not required to
The desander of auger conveyor to be used conveying solid phase particles.The viscosity of water-based drilling muds is low compared with oil-based drilling mud, and liquid
Wrap up the phenomenon of solid phase mutually relatively less, cause biphase being easier of solid-liquid to separate.This device has shell, charging aperture, goes out
The parts that the existing desanders such as material mouth are owned by, except for the difference that, the charging aperture of this device is arranged on the side of shell, and it is straight
Footpath gradually changes, and is gradually reduced along the one end away from shell to the other end, the diameter of charging aperture.The structure of charging aperture makes
When drilling mud is by charging aperture, speed increases, and pressure reduces, and drilling mud sprays in shell, while spraying, in fact solid
Biphase just the having begun to of liquid separates, and being designed to of this charging aperture makes drilling mud spray into being the formation of in a flash of shell
Two-phase laminated flow.This device is provided with sand discharge hole on the sidewall of shell, it is preferred that sand discharge hole and charging aperture lay respectively on shell
On two sides being parallel to each other, be connected through the hinge on the inwall of shell the first screen plate, it is preferred that charging aperture is arranged
Above the first screen plate hinged end, the movable end of the first screen plate is in communication with the outside through sand discharge hole, the first screen plate
Upper surface contacts with sand discharge hole end face, and lower surface connects some springs, and spring is fixed on the bottom in sand discharge hole.Sand discharge hole
The height of end face, less than the height of hinge, passes through this set so that the first screen plate have certain angle of inclination rather than
With plane-parallel, when this device horizontal positioned, on the ground and the movable end of the first screen plate connects with the end face in sand discharge hole
When touching, the height of the first screen plate hinged end, more than the height of movable end, filters first when the drilling mud in charging aperture falls
After on plate, drilling mud can slide to movable end along the first screen plate from hinged end.The lower section of the first screen plate is arranged
The second screen plate, the second screen plate is had also to be located at the inside of shell.By said structure, when having water-based drilling muds from charging aperture
When entering enclosure, first fall on the first screen plate, due to action of gravity and the first screen plate of being obliquely installed, drilling well
Mud moves to movable end along the first screen plate from hinged end.While movement, the aqueous phase in drilling mud passes the first mistake
Filter plate falls into the second screen plate, and after the filtration again of the second screen plate, the aqueous phase in drilling mud is from discharging opening
Middle discharge.On the other hand, owing to drilling mud is moving to movable end, and, it is positioned at the drilling mud of movable end and just drops down onto
Drilling mud on first screen plate is compared, and its solid particle comprised is more, causes movable end by the gravity of drilling mud
After move straight down, the spring below movable end is squeezed, now the upper surface of movable end no longer with the end face of sediment ejection opening
Contact, between sediment ejection opening and the first screen plate formed gap, a small amount of drilling mud with substantial amounts of solid phase particles from sediment ejection opening
And the gap between the first screen plate is discharged, enters next stage solid control equipment.After sand discharge completes, movable end pressure experienced subtracts
Little, spring recovers to initial position, and the upper surface of the first screen plate contacts the end face of sediment ejection opening again.In sum, this
The bright gravity by water-based drilling muds self, while carrying out solid phase separation, while by being deposited in consolidating of movable end
The gravity of phase granule self opens sediment ejection opening, it is achieved the discharge of solid phase particles, it is to avoid use auger conveyor is discharged in shell
Solid phase particles, not only reduce the risk that operator are injured, and saved the use cost of desander.
After drilling mud falls on the first screen plate, it is the process gradually scattered, when drilling mud is on the first screen plate
Flow velocity very fast time, drilling mud will not launch to the both sides of the first screen plate, but directly slide to movable end, cause major part
Solid-liquid is biphase also to be had not enough time to separate and just has moved to sediment ejection opening, and the organic efficiency causing liquid phase is low.In order to improve the first mistake
The utilization ratio of filter plate, is provided with some mud guards, the projection on the first screen plate of the described mud guard on the first screen plate
It is in the shape of the letter V, and the angular bisector of the angle of mud guard projection is with the axis along hinged end to movable end of the first screen plate
Overlap, angle just movable end to the first screen plate.By arranging mud guard, when drilling mud drops down onto the first filtration from charging aperture
Time on plate, drilling mud band to the both sides of the first screen plate, is increased the filter area of drilling mud, the most fully by mud guard
Make use of the filter opening of the first screen plate both sides, and slow down drilling mud translational speed on the first screen plate, enter one
Step promotes while the first screen plate separating effect, it is to avoid drilling mud flow velocity on the first screen plate is very fast and cause big
Part solid-liquid is biphase also to be had not enough time to separate and just has moved to sediment ejection opening.Spray it addition, mud guard also has stop from charging aperture
The effect of the drilling mud entered, drilling mud is when clashing into mud guard, and not only speed slows down, simultaneously as solid phase is being hit with liquid phase
Bounce-back dynamics after hitting is different, and plays the effect of solid-liquid separation.
Further, the sidewall of shell is provided with the refluxing opening being positioned at below sediment ejection opening, the side of shell is fixed with
The 3rd screen plate between sediment ejection opening and refluxing opening, the height of one end that the 3rd screen plate is fixed on shell is higher than another
End, the lower section of the 3rd screen plate is provided with and connects liquid plate, described in connect one end of liquid plate and be arranged in refluxing opening, be arranged in refluxing opening
The height of one end less than the other end.Biphase in order to separate solid-liquid further, in recovery drilling mud as much as possible liquid phase,
After a small amount of drilling mud leaves shell with most of solid granule, falling on the 3rd screen plate, the 3rd screen plate tilts
Arranging, drilling mud slides to the one end away from shell along the 3rd screen plate near one end of shell, the mistake slided
Cheng Zhong, drilling mud separates with solid phase particles, and the aqueous phase of separation drops down onto connecing on liquid plate below the 3rd screen plate.Connect
Liquid plate is obliquely installed equally, is returned in shell by aqueous phase by refluxing opening, and final discharge from discharging opening.By above-mentioned
Arrange, it is possible to separate the solid-liquid in drilling fluid further biphase, reach to reclaim the purpose of more drilling mud.
Further, the aperture of filter screen of the second screen plate less than the first screen plate aperture of filter screen 1/2nd.In reality
Trample middle discovery, the aperture of filter screen of the second screen plate is set smaller than the first screen plate aperture of filter screen 1/2nd can not only
Enough ensure that drilling mud can well move and control movable end and the sediment ejection opening generation of the first screen plate on the first screen plate
Gap, the second screen plate can remove the solid phase particles in drilling mud further simultaneously.
Further, spring is tensioner spring.Tensioner spring can have enough hardness and go while keeping elasticity
Support the first screen plate, add the service life of device, it is to avoid spring is changed frequently or keep in repair.
Further, the angle of mud guard is 20 ~ 45 °, and mud guard two ends are 20 ~ 40 with the distance of the first screen plate both sides
Centimetre.Practice finds, under drilling mud normal flow, if the angle of mud guard is less than 20 °, then the first screen plate both sides
Part filter screen still cannot play a role in filtering；If the angle of mud guard is more than 45 °, will substantially weaken drilling mud in the first mistake
Translational speed on filter plate, causes the accumulation of drilling mud, the first screen plate and spring is caused load, is easily caused damage
Bad.When the distance of mud guard two ends and the first screen plate both sides is 20 ~ 40 centimetres, mud guard can be more smoothly by drilling mud
Band is to the both sides of the first screen plate.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention gravity by water-based drilling muds self, while carrying out solid phase separation, while by being deposited in
The gravity of the solid phase particles of movable end self opens sediment ejection opening, it is achieved the discharge of solid phase particles, it is to avoid use auger conveyor
Discharge the solid phase particles in shell, not only reduce the risk that operator are injured, and saved the use cost of device；
2, the charging aperture of this device is arranged on the side of shell, and its diameter gradually changes, along the one end away from shell extremely
The other end, the diameter of charging aperture is gradually reduced, and being designed to of this charging aperture makes drilling mud spray into shell in a flash
It is the formation of two-phase laminated flow；
3, the present invention is by arranging mud guard, and when drilling mud drops down onto the first screen plate from charging aperture, mud guard is by drilling well
Mud band, to the both sides of the first screen plate, increases the filter area of drilling mud, not only takes full advantage of the first screen plate two
The filter opening of side, and slow down drilling mud translational speed on the first screen plate, divide promoting the first screen plate further
While effect, it is to avoid drilling mud flow velocity on the first screen plate is very fast and most of solid-liquid that is that cause biphase also future
Obtain and separate and just have moved to sediment ejection opening；
4, the present invention is by arranging the 3rd screen plate, refluxing opening, connecing liquid plate, it is achieved that separate the solid-liquid two in drilling fluid further
Phase, reaches to reclaim the purpose of more drilling mud.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the structural representation of mud guard.
The parts title of labelling and correspondence in accompanying drawing:
1-shell, 2-charging aperture, 3-discharging opening, 4-the first screen plate, 5-the second screen plate, 6-spring, 7-the 3rd screen plate, 8-
Connect liquid plate, 9-mud guard.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As depicted in figs. 1 and 2, the present invention is drilling fluid equipment for separating liquid from solid based on mud guard, including shell 1, shell 1
Bottom be provided with discharging opening 3, the side of shell 1 is provided with charging aperture 2, charging aperture 2 from the one end being positioned at shell 1 side to separately
One end diameter is gradually increased, and the sidewall of shell 1 is provided with sediment ejection opening, and on the inwall of shell 1, chain connection has the first screen plate
4, the movable end of the first screen plate 4 contacts through the upper surface of sediment ejection opening and the first screen plate 4 with the end face of sediment ejection opening, sand discharge
The height of mouth end face, less than the height of hinge on shell 1 inwall, the first screen plate 4 is provided with some mud guards 9, mud guard 9
Projection on the first screen plate 4 is in the shape of the letter V, and the angular bisector of mud guard 9 angle is all heavy with the axis of the first screen plate 4
The angle of conjunction and mud guard 9 is all towards the movable end of the first screen plate 4, if the lower section of the movable end of the first screen plate 4 is provided with
Dry spring 6, the lower end of spring 6 is fixed on the bottom surface of sediment ejection opening, and the underface of the first screen plate 4 has been horizontally disposed with and has been positioned at shell
The second screen plate 5 in 1.The refluxing opening being positioned at below sediment ejection opening it is provided with on the sidewall of shell 1, fixing on the side of shell 1
Having the 3rd screen plate 7 between sediment ejection opening and refluxing opening, the height of one end that the 3rd screen plate 7 is fixed on shell 1 is high
In the other end, the lower section of the 3rd screen plate 7 is provided with and connects liquid plate 8, and the one end connecing liquid plate 8 is arranged in refluxing opening, is arranged on back
The height of the one end in head piece is less than the other end.The aperture of filter screen of the second screen plate 5 is less than the aperture of filter screen of the first screen plate 4
1/2nd.Spring 6 is tensioner spring.The angle of mud guard 9 is 20 ~ 45 °, mud guard 9 two ends and the first screen plate 4 both sides
Distance is 20 ~ 40 centimetres.
When using this device, first, check the elasticity of tensioner spring, observe the first screen plate 4 whether with sediment ejection opening end face
Contact；Afterwards, opening charging aperture 2, discharge gate 3, pour water-based drilling muds into, drilling mud sprays into shell 1 from charging aperture 2
In, and impinge upon on mud guard 9；Then, the separation in drilling mud portion in the enclosure is waited, it is also possible to artificial to the first screen plate
4 carry out up-down vibration, increase solid-liquid separation effect and speed；The last aqueous phase, remote at the 3rd screen plate 7 collected at discharge gate 3
Solid phase particles is collected from one end of shell 1.The present invention gravity by water-based drilling muds self, is carrying out solid phase separation
While, the gravity of the solid phase particles self of the movable end being deposited in the first screen plate 4 open sediment ejection opening, it is achieved solid phase
The discharge of granule, it is to avoid use auger conveyor to discharge the solid phase particles in shell, not only reduce operator injured
Risk, and saved the use cost of device.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (5)
1. drilling fluid equipment for separating liquid from solid based on mud guard, including shell (1), described shell (1) bottom is provided with discharging opening
(3), it is characterised in that the side of shell (1) is provided with charging aperture (2), described charging aperture (2) is from being positioned at shell (1) side
One end be gradually increased to other end diameter, the sidewall of shell (1) is provided with sediment ejection opening, on the inwall of shell (1), hinge is even
Being connected to the first screen plate (4), the movable end of described first screen plate (4) passes sediment ejection opening and the upper surface of the first screen plate (4)
Contacting with the end face of sediment ejection opening, the height of sediment ejection opening end face is less than the height of hinge, the first screen plate (4) on shell (1) inwall
On be provided with some mud guards (9), the described mud guard (9) projection on the first screen plate (4) is in the shape of the letter V, mud guard (9) press from both sides
The angular bisector at angle all axis with the first screen plate (4) overlap and the angle of mud guard (9) is all towards the first screen plate
(4) movable end, the lower section of the movable end of the first screen plate (4) is provided with some springs (6), and the lower end of described spring (6) is solid
Being scheduled on the bottom surface of sediment ejection opening, the underface of the first screen plate (4) is horizontally disposed with the second screen plate being positioned at shell (1)
(5).
Drilling fluid equipment for separating liquid from solid based on mud guard the most according to claim 1, it is characterised in that described shell
(1) it is provided with the refluxing opening being positioned at below sediment ejection opening on sidewall, the side of shell (1) is fixed with and is positioned at sediment ejection opening and backflow
The 3rd screen plate (7) between Kou, the height of one end that described 3rd screen plate (7) is fixed on shell (1) is higher than the other end,
The lower section of the 3rd screen plate (7) is provided with and connects liquid plate (8), described in connect one end of liquid plate (8) and be arranged in refluxing opening, be arranged on back
The height of the one end in head piece is less than the other end.
Drilling fluid equipment for separating liquid from solid based on mud guard the most according to claim 1 and 2, it is characterised in that described
The aperture of filter screen of two screen plates (5) is less than 1/2nd of the aperture of filter screen of the first screen plate (4).
Drilling fluid equipment for separating liquid from solid based on mud guard the most according to claim 3, it is characterised in that described spring
(6) it is tensioner spring.
Drilling fluid equipment for separating liquid from solid based on mud guard the most according to claim 1, it is characterised in that described mud guard
(9) angle is 20 ~ 45 °, and mud guard (9) two ends are 20 ~ 40 centimetres with the distance of the first screen plate (4) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603697.0A CN106150411A (en) | 2016-07-28 | 2016-07-28 | Drilling fluid equipment for separating liquid from solid based on mud guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603697.0A CN106150411A (en) | 2016-07-28 | 2016-07-28 | Drilling fluid equipment for separating liquid from solid based on mud guard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106150411A true CN106150411A (en) | 2016-11-23 |
Family
ID=58060541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610603697.0A Pending CN106150411A (en) | 2016-07-28 | 2016-07-28 | Drilling fluid equipment for separating liquid from solid based on mud guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106150411A (en) |
Cited By (2)
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| CN112844295A (en) * | 2021-01-18 | 2021-05-28 | 黄河科技学院 | Multifunctional reaction device for biochemical experiments |
| CN115006910A (en) * | 2022-05-13 | 2022-09-06 | 合肥贺为信息科技有限公司 | Multistage separation device for oil field drilling mud treatment |
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| CN115006910B (en) * | 2022-05-13 | 2024-03-15 | 合肥贺为信息科技有限公司 | Multistage separation device for oilfield drilling mud treatment |
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