CN105696957A - Multilayer drilling fluid vibrating screen capable of performing series-parallel connection switching - Google Patents
Multilayer drilling fluid vibrating screen capable of performing series-parallel connection switching Download PDFInfo
- Publication number
- CN105696957A CN105696957A CN201610193668.1A CN201610193668A CN105696957A CN 105696957 A CN105696957 A CN 105696957A CN 201610193668 A CN201610193668 A CN 201610193668A CN 105696957 A CN105696957 A CN 105696957A
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- Prior art keywords
- screen
- plate
- passage
- back flow
- drilling fluid
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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 relates to a drilling fluid vibrating screen, in particular to a multilayer drilling fluid vibrating screen capable of performing series-parallel connection switching.The multilayer drilling fluid vibrating screen comprises a base and a screen box.The upper end of the screen box is provided with a vibrating motor, and three layers of screen cloths are arranged in the screen box.An upper backflow plate is arranged below the upper layer screen cloth, the lower end of the middle layer screen cloth is provided with a middle backflow plate, the three layers of screen cloths and the front end of the backflow plate are connected with a baffle, and a mud chamber is formed between the baffle and a screen box front plate.The baffle is provided with a channel A, a channel B, a channel C and a channel D.A first valve plate is arranged between the baffle and the screen box front plate, a mud outlet pipe penetrates the baffle and the screen box front plate, and the mud outlet pipe is provided with a mud outlet valve plate.The series-parallel connection switching can be performed according to needed mass of drilling fluid.When a parallel connection is adopted, solid phase and liquid phase treatment capacity of the single vibrating screen is greatly improved; and when a series connection mode is adopted, the screening effect and screening efficiency are improved.
Description
Technical field
The present invention relates to drilling fluid vibrating sieve, particularly to a kind of can connection in series-parallel switching multilamellar drilling fluid vibrating sieve。
Background technology
Drilling fluid vibrating sieve is as the first order drill fluid purification equipment of most critical, it is at first at present, the fastest, maximum removes the equipment of drilling cuttings, its quality decides the treatment effect of a whole set of solid control equipment, development along with petroleum industry and the continuous growth to oil demand, oilfield prospecting developing employs the oil-gas reservoir harsh with mining environment gradually, by shallow stratum to deep formation, changed to deep-sea by shallow sea, to also having nothing in common with each other of drilling fluid quality, only a kind of mode of operation of current oil field drilling fluid vibrating sieve, cannot be adjusted according to required drilling fluid quality, cause drilling fluid vibrating sieve service efficiency low。
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, can carry out a kind of of connection in series-parallel pattern switching according to required drilling fluid quality can the multilamellar drilling fluid vibrating sieve of connection in series-parallel switching。
The technical scheme is that
A kind of can connection in series-parallel switching multilamellar drilling fluid vibrating sieve, including base, screen box, screen box upper end arranges vibrating motor, upper strata screen cloth is set in described screen box, middle level screen cloth and lower screen three-layer screen, upper sieve net is arranged below back flow plate, screen cloth lower end, middle level arranges middle back flow plate, three-layer screen and back flow plate front end are connected with baffle plate, slurry chamber is formed between baffle plate and screen box header board, baffle plate has passage A, passage B, channel C and passage D, passage A is between upper strata screen cloth and upper back flow plate, passage B is between upper back flow plate and middle level screen cloth, channel C is between middle level screen cloth and middle back flow plate, passage D is between middle back flow plate and lower screen, first valve plate is set between baffle plate and screen box header board, first valve plate is between passage B and middle level screen cloth, slurry chamber can be divided into two parts by the first valve plate, grout outlet runs through baffle plate and screen box header board, grout outlet is between channel C and middle back flow plate, grout outlet arranges pulp valve plate。
Described three-layer screen is composite screen mesh, and it is fixed in screen box by pneumatic pinch screen system, pneumatic pinch screen system includes mounting groove, pressure bladder, the lower end one of mounting groove connects V-type draw-in groove, one end of composite screen mesh and pressure bladder are in mounting groove, pressure bladder is above screen cloth, pressure bladder is strip, the internal surrounding cavity of pressure bladder bar is wound around Multi-layer high pressure resistant strap, one end of pressure bladder arranges Multifunction tyre-inflating valve, Multifunction tyre-inflating valve connects Pneumatic control cabinet, and the top of pressure bladder arranges V-arrangement hooking device。
The rear and front end of described composite screen mesh is respectively provided with male hook and female hook, male hook and female hook cooperating。
The present invention can carry out connection in series-parallel pattern switching according to required drilling fluid quality, when adopting paralleling model, 1 vibrosieve can be used as 2 vibrosieves, substantially increase solid phase and the liquid phase disposal ability of separate unit vibrosieve, employing series model is, improve screening effect and screening efficiency, useful mud solid concentration after three layer filtration reduces, alleviate the pressure of two-stage solids control equipment after solid controlling system, simplify original three grades of solid control systems, be greatly saved the drilling cost of drilling team。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention。
Fig. 2 is this screen box structural representation。
Fig. 3 is series parallel structure schematic diagram。
Fig. 4 is pneumatic pinch screen system structural representation。
Fig. 5 is the structural representation of pressure bladder。
Fig. 6 is the structural representation of composite screen mesh。
The female hook of the male hook of back flow plate 8 lower screen 9 passage A10 passage B11 channel C 12 passage D13 the first valve plate 14 grout outlet 15 pulp valve plate 16 slurry chamber 17 baffle plate 18 composite screen mesh 19 pneumatic pinch screen system 20 mounting groove 21V high pressure resistant strap 25 Pneumatic control cabinet 26 of type draw-in groove 22 pressure bladder 23V shape hooking device 24 27 in back flow plate 6 middle level screen cloth 7 on 1 base 2 screen box 3 vibrating motor 4 upper strata screen cloth 5。
Detailed description of the invention
A kind of can connection in series-parallel switching multilamellar drilling fluid vibrating sieve, including base 1, screen box 2, screen box 2 upper end arranges vibrating motor 3, it is characterized in that, in described screen box 2, upper strata screen cloth 4 is set, middle level screen cloth 6 and lower screen 8 three-layer screen, upper strata screen cloth 4 is arranged below back flow plate 5, middle level screen cloth 6 lower end arranges middle back flow plate 7, three-layer screen and back flow plate front end are connected with baffle plate 17, slurry chamber 16 is formed between baffle plate 17 and screen box 2 header board, baffle plate 17 has passage A9, passage B10, channel C 11 and passage D12, passage A9 is between upper strata screen cloth 4 and upper back flow plate 5, passage B10 is between upper back flow plate 5 and middle level screen cloth 6, channel C 11 is between middle level screen cloth 6 and middle back flow plate 7, passage D12 is between middle back flow plate 7 and lower screen 8, first valve plate 13 is set between baffle plate 17 and screen box 2 header board, first valve plate 13 is between passage B10 and middle level screen cloth 6, slurry chamber 16 can be divided into two parts by the first valve plate 13, grout outlet 14 runs through baffle plate 17 and screen box 2 header board, grout outlet 14 is between channel C 11 and middle back flow plate 7, grout outlet 14 arranges pulp valve plate 15。
Described three-layer screen is composite screen mesh 18, the rear and front end of composite screen mesh 18 is respectively provided with male hook 26 and female hook 27, two screen clothes are linked together by male hook 26 and female hook 27 cooperation, when changing screen cloth, by the disposable pull-out of all screen clothes of its series connection, the time changed needed for screen cloth can be shortened。
Composite screen mesh 18 is fixed in screen box 2 by pneumatic pinch screen system 19, pneumatic pinch screen system 19 includes mounting groove 20, pressure bladder 22, the lower end one of mounting groove 20 connects V-type draw-in groove 21, one end of composite screen mesh 18 and pressure bladder 22 are in mounting groove 20, pressure bladder 22 is above screen cloth, pressure bladder 22 is in strip, the internal surrounding cavity of pressure bladder 22 is wound around Multi-layer high pressure resistant strap 24, one end of pressure bladder 22 arranges Multifunction tyre-inflating valve, Multifunction tyre-inflating valve connects Pneumatic control cabinet 25, the top of pressure bladder 22 arranges V-arrangement hooking device 23。
Adopt series model time, close the first valve plate 13 and pulp valve plate 15 valve plate, mud through after aqueduct entrance sieve box of vibrating 2, entering upper strata screen cloth 4, through upper strata screen cloth 4 coarse filtration, coarse granule is discharged outside vibrosieve, the mud reclaimed enters middle level screen cloth 6 through passage A9, passage B10；Through middle level screen cloth 6 filter mud through channel C 11, passage D12 enters lower screen 8, fine grained eliminating vibrosieve；The final mud filtered through lower screen 8 enters slurry tank, and ultra-fine granule discharges vibrosieve。
When adopting paralleling model, open the first valve plate 13 and pulp valve plate 15 valve plate, mud through after aqueduct enter sieve box of vibrating 2, enter upper strata screen cloth 4, outside upper strata screen cloth 4 coarse filtration, coarse granule discharge vibrosieve；The mud that a part reclaims enters middle level screen cloth 6 through passage A9, passage B10；Through grout outlet 14, pulp valve plate 15 place enters slurry tank；The mud that another part reclaims is through the first valve plate 13, and passage D12 enters lower screen 8, and the mud after process is directly entered slurry tank。
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit；Although the present invention being described in detail with reference to preferred embodiment, those of ordinary skill in the field are it is understood that still can modify to the specific embodiment of the present invention or portion of techniques feature carries out equivalent replacement；Without deviating from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention is claimed。
Claims (3)
1. one kind can connection in series-parallel switching multilamellar drilling fluid vibrating sieve, including base, screen box, screen box upper end arranges vibrating motor, it is characterized in that, upper strata screen cloth is set in described screen box, middle level screen cloth and lower screen three-layer screen, upper sieve net is arranged below back flow plate, screen cloth lower end, middle level arranges middle back flow plate, three-layer screen and back flow plate front end are connected with baffle plate, slurry chamber is formed between baffle plate and screen box header board, baffle plate has passage A, passage B, channel C and passage D, passage A is between upper strata screen cloth and upper back flow plate, passage B is between upper back flow plate and middle level screen cloth, channel C is between middle level screen cloth and middle back flow plate, passage D is between middle back flow plate and lower screen, first valve plate is set between baffle plate and screen box header board, first valve plate is between passage B and middle level screen cloth, slurry chamber can be divided into two parts by the first valve plate, grout outlet runs through baffle plate and screen box header board, grout outlet is between channel C and middle back flow plate, grout outlet arranges pulp valve plate。
2. according to claim 1 a kind of can connection in series-parallel switching multilamellar drilling fluid vibrating sieve, it is characterized in that, described three-layer screen is composite screen mesh, and it is fixed in screen box by pneumatic pinch screen system, pneumatic pinch screen system includes mounting groove, pressure bladder, the lower end one of mounting groove connects V-type draw-in groove, one end of composite screen mesh and pressure bladder are in mounting groove, pressure bladder is above screen cloth, pressure bladder is strip, the internal surrounding cavity of pressure bladder bar is wound around Multi-layer high pressure resistant strap, one end of pressure bladder arranges Multifunction tyre-inflating valve, Multifunction tyre-inflating valve connects Pneumatic control cabinet, the top of pressure bladder arranges V-arrangement hooking device。
3. a kind of according to claim 2 can the multilamellar drilling fluid vibrating sieve of connection in series-parallel switching, it is characterised in that the rear and front end of described composite screen mesh is respectively provided with male hook and female hook, and male hook and mother link up with cooperating。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193668.1A CN105696957A (en) | 2016-03-31 | 2016-03-31 | Multilayer drilling fluid vibrating screen capable of performing series-parallel connection switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193668.1A CN105696957A (en) | 2016-03-31 | 2016-03-31 | Multilayer drilling fluid vibrating screen capable of performing series-parallel connection switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105696957A true CN105696957A (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610193668.1A Pending CN105696957A (en) | 2016-03-31 | 2016-03-31 | Multilayer drilling fluid vibrating screen capable of performing series-parallel connection switching |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101528365A (en) * | 2006-09-29 | 2009-09-09 | M-I有限公司 | Composite screen with integral inflatable seal |
| CN101821021A (en) * | 2007-10-05 | 2010-09-01 | M-I有限公司 | Screen clamp |
| CN101878072A (en) * | 2007-10-08 | 2010-11-03 | M-I有限公司 | The fluid that is used for vibratory sieve distributes |
| CN203002620U (en) * | 2012-12-18 | 2013-06-19 | 濮阳市中原锐实达石油设备有限公司 | Novel drilling liquid double-layer vibrating screen |
| US20140021120A1 (en) * | 2008-10-10 | 2014-01-23 | National Oilwell Varco, L.P. | Shale shakers with selective series/parallel flow path conversion |
| CN205503063U (en) * | 2016-03-31 | 2016-08-24 | 濮阳市共振石油机械有限公司 | Can go here and there parallel switches's multilayer drilling fluid shale shaker |
-
2016
- 2016-03-31 CN CN201610193668.1A patent/CN105696957A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101528365A (en) * | 2006-09-29 | 2009-09-09 | M-I有限公司 | Composite screen with integral inflatable seal |
| CN101821021A (en) * | 2007-10-05 | 2010-09-01 | M-I有限公司 | Screen clamp |
| CN101878072A (en) * | 2007-10-08 | 2010-11-03 | M-I有限公司 | The fluid that is used for vibratory sieve distributes |
| US20140021120A1 (en) * | 2008-10-10 | 2014-01-23 | National Oilwell Varco, L.P. | Shale shakers with selective series/parallel flow path conversion |
| CN203002620U (en) * | 2012-12-18 | 2013-06-19 | 濮阳市中原锐实达石油设备有限公司 | Novel drilling liquid double-layer vibrating screen |
| CN205503063U (en) * | 2016-03-31 | 2016-08-24 | 濮阳市共振石油机械有限公司 | Can go here and there parallel switches's multilayer drilling fluid shale shaker |
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Application publication date: 20160622 |