CN105863534A - Moving baffle based screening device of oil-based drilling fluid solid control equipment - Google Patents
Moving baffle based screening device of oil-based drilling fluid solid control equipment Download PDFInfo
- Publication number
- CN105863534A CN105863534A CN201610415347.1A CN201610415347A CN105863534A CN 105863534 A CN105863534 A CN 105863534A CN 201610415347 A CN201610415347 A CN 201610415347A CN 105863534 A CN105863534 A CN 105863534A
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- CN
- China
- Prior art keywords
- drilling fluid
- moving stop
- fixed dam
- sleeve
- control equipment
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- 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.)
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Classifications
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- 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
Abstract
The invention discloses a moving baffle based screening device of oil-based drilling fluid solid control equipment. The screening device comprises a screen frame and a screen, a guide rail and a fixed baffle are arranged on the screen frame sequentially, the longer side of the bottom surface of the fixed baffle is perpendicular to the screen frame, a slider is arranged on the guide rail, the moving baffle is mounted on the slider and parallel to the fixed baffle, a sleeve is mounted on the side face, facing the fixed baffle, of the moving baffle and is perpendicular to the moving baffle, a spring and a supporting rod are arranged in the sleeve, a spring is connected to one end, positioned in the sleeve, of the supporting rod, and the other end of the supporting rod is fixed on the fixed baffle. The moving baffle based screening device of the oil-based drilling fluid solid control equipment has the advantages that the device enables a liquid phase and a solid phase in drilling fluid to be further separated from each other, so that screening effect is strengthened, loss of the circulating liquid phase is caused by the fact that the liquid phase in the drilling fluid moves to a screen outlet along with the solid phase when not separated from the solid phase during screening is avoided, use cost of the drilling liquid is reduced and environmental protection is achieved.
Description
Technical field
The present invention relates to drilling fluid reclamation field, be specifically related to the screening plant of oil base drilling fluid solid control equipment based on moving stop.
Background technology
Drilling fluid is the general name of the various circulation of fluids used in drilling process, and drilling fluid is also referred to as drilling mud.In drilling process, drilling fluid can effectively cool down and lubricate drill bit, additionally it is possible to balancing layer pressure, it is to avoid blowout and well kick occur, and in addition, drilling fluid can also transmit power and coring sampling.Different according to disperse medium, drilling fluid is broadly divided into water-base drilling fluid, oil base drilling fluid gentle base drilling fluid three major types.
In drilling process, drilling fluid enters to bottom by drilling rod, after completing its effect with drilling well in the waste residue that produces discharge together, due to drilling fluid not only price high and also can 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 mainly includes the solid control equipments such as drilling fluid vibrating sieve, vacuum degasser, desander, desilter, horizontal spiral centrifuge.These solid control equipments, just as a series of sizes, sieve that function is different, realize the purification to drilling fluid and recycling by filtering layer by layer.
Drilling fluid vibrating sieve is for circulation of drilling fluid, the one-level solid control equipment of cleaning system, has the features such as oscillation intensity is high, sieving area is big.Drilling fluid vibrating sieve is mainly used in removing bore meal particles bigger in drilling fluid, safeguards treatment effect and the service life of the performance of the drilling fluid solid control equipment after ensureing, is equipment most important in solid controlling system.
The screening process of drilling fluid vibrating sieve includes liquid phase and crosses screen cloth in screen box and solid phase moves the outlet to screen cloth from screen cloth entrance on screen cloth.When drilling fluid is positioned on screen box the screen cloth arranged, biphase the beginning to of solid-liquid separates.Solid-liquid is biphase will not be immediately disconnected, the screening mechanism of tradition drilling fluid vibrating sieve is likely to occur solid phase particles in screening process and is not able to do in time the most just to have left screen cloth with liquid phase, cause the drilling fluid liquid phase loss that can reclaim, not only pollute environment and also add drilling cost.
Summary of the invention
The technical problem to be solved is the shortcoming for tradition drilling fluid vibrating sieve screening mechanism, purpose is to provide the screening plant of oil base drilling fluid solid control equipment based on moving stop, solve traditional drilling fluid vibrating sieve in screening process, occur that solid phase particles and liquid phase are not able to do in time the most just to have left screen cloth, cause the problem of recyclable liquid phase loss in drilling fluid.
The present invention is achieved through the following technical solutions: the screening plant of oil base drilling fluid solid control equipment based on moving stop, including screen frame, screen cloth it is provided with in screen frame, along the entrance of screen cloth to Way out, screen frame is disposed with guide rail and fixed dam, the longer sides of fixed dam bottom surface is perpendicular to screen frame, the height of fixed dam is parallel to the normal of screen frame, slide block it is provided with on guide rail, moving stop is installed on slide block, moving stop is parallel to fixed dam, moving stop is provided with sleeve on the side of fixed dam, sleeve is perpendicular to moving stop, spring and support bar it is provided with in sleeve, support bar is positioned on one end of sleeve connection spring, the other end is fixed on fixed dam.In prior art, the screen box of drilling fluid vibrating sieve and the equal slant setting of screen cloth, the height of drilling fluid porch is more than the height in exit, when drilling fluid enters screen cloth from drilling fluid vibrating sieve entrance, solid phase in drilling fluid is positioned at above screen cloth, the exit to screen cloth is moved from the porch of screen cloth, liquid phase in drilling fluid in solid phase during screened outlet moves, gradually separated with solid phase by effect of vibration, and enter in the screen box below screen cloth through screen cloth, finally further separated in screen box exit is collected the liquid phase of drilling fluid and is transferred to the solid control equipment of next stage.But, the screening mechanism of traditional drilling fluid vibrating sieve uniquely relies on the effect of vibration of screen box and coordinates screen cloth to sieve, screen cloth is arranged in screen frame, screen frame is the edge at screen box top, in screening process, part tape-supported adhesive has the solid particle of drilling fluid liquid phase just to have moved to exit with liquid phase separation when not opening to be collected, and causes the liquid phase loss that can be recycled in drilling fluid.Owing to drilling fluid liquid phase not only comprising disperse medium such as water, further comprises the chemical substances such as inorganic agent, be not only not easy to process, also pollute the environment, and, add the use cost of drilling fluid.In order to solve the problems referred to above, the present invention proposes the screening plant of oil base drilling fluid solid control equipment based on moving stop.This mechanism is provided with some baffle mechanisms on screen frame, baffle mechanism includes a guide rail and a fixed dam, guide rail is arranged between fixed dam and screen cloth entrance, guide rail and fixed dam are respectively positioned on two limits that screen frame is parallel to each other, these two limits are connected to the limit at drilling fluid entrance and exit place, the i.e. entrance and exit of screen cloth, when drilling fluid enters to screen cloth from charging aperture, first passing through the entrance of screen cloth, the solid phase of final drilling fluid is by screened outlet and is collected.Being provided with slide block on guide rail, slide block is provided with moving stop, moving stop is parallel to fixed dam, moving stop and fixed dam and all extends to screen cloth from screen frame, and wherein, fixed dam is fixed on screen frame, and moving stop is fixed on slide block.Moving stop is fixed with sleeve on the side of fixed dam, fixed dam is fixed with, on the side of moving stop, the support bar matched with sleeve dimensions, support bar is positioned at one end of sleeve and connects spring, and spring one end connects support bar, on the bottom surface of other end branch sleeve.When drilling fluid flows into screen cloth from charging aperture, drilling fluid impinges upon on moving stop while effect vibrated, drilling fluid produces impulse force to moving stop, moving stop produces counteracting force to drilling fluid, after reaction force acts is on drilling fluid, owing in drilling fluid, liquid phase is different from the bounce-back dynamics of solid phase, the distance of solid phase bounce-back is remote compared with the distance that liquid phase rebounds, separate the solid phase in drilling fluid and liquid phase the most further, avoid liquid phase also to have not enough time to solid phase and separate just along with solid phase movement to screened outlet, cause drilling fluid liquid phase capable of circulation to lose；Additionally; a part of liquid phase also can stick on moving stop; along with effect of vibration slowly from moving stop landing on screen cloth and entering in screen box eventually through sieve aperture; this Partial Liquid Phase not only achieves and separates with solid phase; the shock alleviating drilling fluid to moving stop can also be played, play the effect of protection moving stop.Moving stop is after by the shock of drilling fluid, a segment distance can be moved towards fixed dam, rebounded by the resilient support of spring afterwards, so it is possible not only to shed a part of impulse force, impulse force is transferred to spring, avoid moving stop to damage in being clashed into frequently, increase the moving stop bounce-back dynamics to drilling fluid also by spring, further such that the liquid phase in drilling fluid separates with solid phase simultaneously.Find in practice, part drilling fluid is after clashing into moving stop, add the impact of effect of vibration, can drop down onto on the spring between moving stop and fixed dam, owing to space is little, be not easily cleaned, after using a period of time, drilling fluid sticks on spring so that the elastic reduction of spring, loses its due effect.In order to solve the problems referred to above, spring is arranged in sleeve by this device, by support bar and sleeve, spring is formed confined space, it is to avoid drilling fluid contact spring, is effectively guaranteed spring and normally uses, improves the screening effect of device.This device makes the liquid phase in drilling fluid separate further with solid phase; strengthen screening effect; avoid in screening process; the when that especially the influx of drilling fluid increasing suddenly; liquid phase in drilling fluid also has not enough time to separate with solid phase at just along with solid phase movement to screened outlet; cause the loss of liquid phase capable of circulation, not only reduce the use cost of drilling fluid, also protect environment.
Further, 1.5 to 2 times of a length of fixed dam length of moving stop.In this device, moving stop plays a part to separate further solid phase and liquid phase in drilling fluid, fixed dam is installed spring moving stop is played a part resilient support.Finding through practice, if the length of moving stop is less than 1.5 times of fixed dam length, moving stop is the least with the contact area of drilling fluid, inferior separating effect, and part drilling fluid also can be deposited in the side of fixed dam；If the length of moving stop is more than 2 times of fixed dam length, owing to moving stop is located proximate to guide rail by spring supporting effect so that the moment being positioned at screen cloth one end of moving stop increases, and is easily damaged moving stop, spring, slide block and guide rail.
Further, the 1/4 to 1/3 of a length of mesh widths of moving stop.The width of screen cloth refers to be perpendicular to the length of side on limit, guide rail place, owing to charging aperture is generally placed on the axis of screen cloth, drilling fluid is when charging aperture enters screen cloth, more part concentrates in the middle part of screen cloth, if when moving stop length less than mesh widths four/for the moment, the screening effect of moving stop is poor, when moving stop length more than mesh widths three/for the moment, the Deal With Drilling Fluid amount that can cause drilling fluid vibrating sieve reduces, result even in solid phase time serious to be deposited on screen cloth, damage screen cloth.
Further, moving stop surface scribbles synthetic enamel.Synthetic enamel is mainly used in the protection of metal surface; owing to moving stop can be frequently by the shock in drilling fluid, the solid phase of drilling fluid can produce scraping to its surface, reduce the life-span of moving stop; the surface of moving stop can be played a protective role by synthetic enamel, extends its service life.In practice, the main use antirust enamel paint of C53-31, this enamel paint has good adhesive force and pliability, it is possible to moving stop surface is played good protected effect.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention is on the basis of the effect of vibration of tradition screen of vibration screen for well drill liquid; by increasing moving stop; liquid phase in drilling fluid is separated further with solid phase; strengthen screening effect, it is to avoid in screening process, the when that especially the influx of drilling fluid increasing suddenly; liquid phase in drilling fluid also has not enough time to separate with solid phase at just along with solid phase movement to screened outlet; cause the loss of liquid phase capable of circulation, not only reduce the use cost of drilling fluid, also protect environment；
2, the present invention is provided with fixed dam, spring, sleeve and support bar, make moving stop after being clashed into, a segment distance can be moved towards fixed dam, rebounded by the support of spring afterwards, so it is possible not only to shed a part of impulse force, impulse force is transferred on spring, it is to avoid moving stop damages in frequently clashing into, increase the moving stop bounce-back dynamics to drilling fluid also by spring, further such that the liquid phase in drilling fluid separates with solid phase simultaneously；
3, spring is arranged in sleeve by the present invention, by support bar and sleeve, spring is formed confined space, it is to avoid drilling fluid contact spring, is effectively guaranteed spring and normally uses, improves the screening effect of this device；
4, the present invention passes through practical application, find when 1.5 to 2 times of a length of fixed dam length of moving stop, the screening effect of moving stop is best, if the length of moving stop is less than 1.5 times of fixed dam length, moving stop is the least with the contact area of drilling fluid, inferior separating effect, part drilling fluid also can be deposited in the side of fixed dam；If the length of moving stop is more than 2 times of fixed dam length, owing to moving stop is located proximate to guide rail by spring supporting effect so that the moment being positioned at screen cloth one end of moving stop increases, and is easily damaged moving stop, spring, slide block and guide rail；
5, the present invention scribbles the antirust enamel paint of C53-31 on moving stop surface; owing to moving stop can be frequently by the shock in drilling fluid; the solid phase of drilling fluid can produce scraping to its surface; reduce the life-span of moving stop; the surface of moving stop can be played a protective role by the antirust enamel paint of C53-31, extends its service life.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram.
The parts title of labelling and correspondence in accompanying drawing:
1-screen frame, 2-screen cloth, 3-guide rail, 4-fixed dam, 5-slide block, 6-spring, 7-moving stop, 8-support bar, 9-sleeve.
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, the present 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, not as a limitation of the invention.
Embodiment
As shown in Figure 1, the present invention is the screening plant of oil base drilling fluid solid control equipment based on moving stop, including screen frame 1, screen cloth 2 it is provided with in screen frame 1, along the entrance of screen cloth 2 to Way out, screen frame 1 is disposed with guide rail 3 and fixed dam 4, the longer sides of fixed dam 4 bottom surface is perpendicular to screen frame 1, the height of fixed dam 4 is parallel to the normal of screen frame 1, slide block 5 it is provided with on guide rail 3, moving stop 7 is installed on slide block 5, moving stop 7 is parallel to fixed dam 4, moving stop 7 is provided with sleeve 9 on the side of fixed dam 4, sleeve 9 is perpendicular to moving stop 7, spring 6 and support bar 8 it is provided with in sleeve 9, support bar 8 is positioned on one end of sleeve 9 connection spring 6, the other end is fixed on fixed dam 4.1.5 to 2 times of a length of fixed dam 4 length of moving stop 7.The 1/4 to 1/3 of a length of screen cloth 2 width of moving stop 7.Moving stop 7 surface scribbles synthetic enamel.When drilling fluid flows into from screen cloth 2 entrance, drilling fluid impinges upon on moving stop 7 while effect vibrated, moving stop 7 by separating the solid phase in drilling fluid and liquid phase further to the counteracting force of drilling fluid, avoid liquid phase also to have not enough time to solid phase and separate just along with solid phase movement to screened outlet, cause drilling fluid liquid phase capable of circulation to lose；Moving stop 7 is after being clashed into, a segment distance can be moved towards fixed dam, rebounded by the support of spring 6 afterwards, so it is possible not only to shed a part of impulse force, impulse force is transferred on spring 6, avoid moving stop 7 to damage in frequently clashing into, increase the moving stop 7 bounce-back dynamics to drilling fluid also by spring 6, further such that the liquid phase in drilling fluid separates with solid phase simultaneously.Spring 6 is positioned at sleeve 9 and the confined space of support bar 8 formation, will not contact with drilling fluid, even if long-time use also can guarantee that good spring function, improves the screening effect of device.This device makes the liquid phase in drilling fluid separate further with solid phase; strengthen screening effect; avoid in screening process; the when that especially the influx of drilling fluid increasing suddenly; liquid phase in drilling fluid also has not enough time to separate with solid phase just along with solid phase movement is to screen cloth 2 exit; cause the loss of liquid phase capable of circulation, not only reduce the use cost of drilling fluid, also protect environment.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (4)
- null1. the screening plant of oil base drilling fluid solid control equipment based on moving stop，Including screen frame (1)，Screen cloth (2) it is provided with in described screen frame (1)，It is characterized in that，Along the entrance of screen cloth (2) to Way out，Screen frame (1) is disposed with guide rail (3) and fixed dam (4)，The longer sides of described fixed dam (4) bottom surface is perpendicular to screen frame (1)，The height of fixed dam (4) is parallel to the normal of screen frame (1)，Slide block (5) it is provided with on described guide rail (3)，Moving stop (7) is installed on slide block (5)，Described moving stop (7) is parallel to fixed dam (4)，Moving stop (7) is provided with sleeve (9) on the side of fixed dam (4)，Described sleeve (9) is perpendicular to moving stop (7)，Spring (6) and support bar (8) it is provided with in sleeve (9)，Described support bar (8) is positioned on one end of sleeve (9) connection spring (6)，The other end is fixed on fixed dam (4).
- The screening plant of oil base drilling fluid solid control equipment based on moving stop the most according to claim 1, it is characterised in that 1.5 to 2 times of a length of fixed dam (4) length of described moving stop (7).
- The screening plant of oil base drilling fluid solid control equipment based on moving stop the most according to claim 1, it is characterised in that the 1/4 to 1/3 of a length of screen cloth (2) width of described moving stop (7).
- The screening plant of oil base drilling fluid solid control equipment based on moving stop the most according to claim 1, it is characterised in that described moving stop (7) surface scribbles synthetic enamel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415347.1A CN105863534B (en) | 2016-06-15 | 2016-06-15 | The screening plant of oil base drilling fluid solid control equipment based on moving stop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415347.1A CN105863534B (en) | 2016-06-15 | 2016-06-15 | The screening plant of oil base drilling fluid solid control equipment based on moving stop |
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| Publication Number | Publication Date |
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| CN105863534A true CN105863534A (en) | 2016-08-17 |
| CN105863534B CN105863534B (en) | 2018-12-07 |
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| CN201610415347.1A Expired - Fee Related CN105863534B (en) | 2016-06-15 | 2016-06-15 | The screening plant of oil base drilling fluid solid control equipment based on moving stop |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085745B (en) * | 1980-10-20 | 1984-03-28 | Thule United Ltd | Vibratory screening apparatus |
| CN1596158A (en) * | 2001-11-29 | 2005-03-16 | 宾德股份公司 | Sieve device |
| CN202336424U (en) * | 2011-10-28 | 2012-07-18 | 九鼎环保纸业股份有限公司 | Papermaking fiber reselection vibrating screen |
| CN103182378A (en) * | 2013-03-12 | 2013-07-03 | 河南威猛振动设备股份有限公司 | Auxiliary sieving device for vibrating screen |
| CN104001665A (en) * | 2014-06-11 | 2014-08-27 | 长江大学 | Band type linear vibrating screen |
| CN204194125U (en) * | 2014-10-13 | 2015-03-11 | 赣州正康生物科技有限公司 | A kind of feed factory multifunction vibration sieves |
| CN205840825U (en) * | 2016-06-15 | 2016-12-28 | 成都来宝石油设备有限公司 | A kind of screening plant of oil base drilling fluid solid control equipment based on moving stop |
-
2016
- 2016-06-15 CN CN201610415347.1A patent/CN105863534B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085745B (en) * | 1980-10-20 | 1984-03-28 | Thule United Ltd | Vibratory screening apparatus |
| CN1596158A (en) * | 2001-11-29 | 2005-03-16 | 宾德股份公司 | Sieve device |
| CN202336424U (en) * | 2011-10-28 | 2012-07-18 | 九鼎环保纸业股份有限公司 | Papermaking fiber reselection vibrating screen |
| CN103182378A (en) * | 2013-03-12 | 2013-07-03 | 河南威猛振动设备股份有限公司 | Auxiliary sieving device for vibrating screen |
| CN104001665A (en) * | 2014-06-11 | 2014-08-27 | 长江大学 | Band type linear vibrating screen |
| CN204194125U (en) * | 2014-10-13 | 2015-03-11 | 赣州正康生物科技有限公司 | A kind of feed factory multifunction vibration sieves |
| CN205840825U (en) * | 2016-06-15 | 2016-12-28 | 成都来宝石油设备有限公司 | A kind of screening plant of oil base drilling fluid solid control equipment based on moving stop |
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| CN105863534B (en) | 2018-12-07 |
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Effective date of registration: 20210607 Address after: 718600 West Ring Road (Dinglian Road), Dingbian Town, Dingbian County, Yulin City, Shaanxi Province Patentee after: Dingbian Zelin Petroleum Engineering Co.,Ltd. Address before: 610000 Rong Ou, 144 Qingbaijiang Road, Chengdu, Sichuan. Patentee before: Chengdu Zhirong Zhichuang Intellectual Property Operation Co.,Ltd. |
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