CN201433729Y - combined drilling fluid/gas separator - Google Patents
combined drilling fluid/gas separator Download PDFInfo
- Publication number
- CN201433729Y CN201433729Y CN2009201603886U CN200920160388U CN201433729Y CN 201433729 Y CN201433729 Y CN 201433729Y CN 2009201603886 U CN2009201603886 U CN 2009201603886U CN 200920160388 U CN200920160388 U CN 200920160388U CN 201433729 Y CN201433729 Y CN 201433729Y
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- CN
- China
- Prior art keywords
- drilling fluid
- gas separator
- cyclone
- fluid
- pipe
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a combined drilling fluid/gas separator, aims at overcoming the defects that the existing drilling fluid/gas separator has low treatment quantity and poorer separation effect, and provides a combined drilling fluid/gas separator. The combined drilling fluid/gas separator comprises an exhaust pipe, a fluid inlet pipe, an external barrel, a manhole, a fluid blocking plate, a baffle plate, an air duct, a manhole, a slagging pipe and a fluid discharging pipe, wherein a cyclone is arranged in the external barrel; the fluid inlet pipe forms an inclined angle with the horizontal direction and tangentially enters the cyclone; the baffle plate is positioned in the external barrel and under the cyclone; an air blocking umbrella is positioned between the exhaust pipe and acyclone body by a welded pipe; and the cross section of the fluid inlet pipe is rectangular or crescent-shaped; and the air blocking umbrella is an umbrella-shaped baffle plate. The combined drillingfluid/gas separator combines the advantages of gravity separation and centrifugal separation, has large treatment quantity, high separation efficiency, simple structure and convenient maintenance; and the cyclone can be changed independently when being seriously worn.
Description
Technical field
The utility model relates to a kind of gas-liquid separator, relates in particular to drilling fluid/gas separator that a kind of drilling well is used.
Background technology
Drilling fluid/gas separator is the special equipment of the gas cut drilling fluid degassing.It mainly acts on is the air pocket of removing in the gas cut drilling fluid.In conventional drilling, because what adopt is overbalance or near-balance drilling mode, and after gas cut takes place, in order to guarantee normal construction, generally all take immediate steps, carry out kill job, therefore the treating capacity of the drilling fluid/gas separator that is equipped with is all less usually, is generally 120-150m3/h.Along with air-filling well-drilling, steep applying of drilling technologies such as last drilling well, the drilling well of underbalance pressure, drilling fluid/gas separator has been proposed new requirement, float amount drilling fluid/gas separator can not meet the demands.Particularly when the drilling well of underbalance pressure, because liquid column hydrostatic pressure is lower than the shaft bottom strata pressure, therefore the gas in the stratum can constantly be recycled to ground together in company with drilling fluid, if drilling fluid/gas separator can not in time be removed gas from the drilling fluid that returns out, will cause drilling fluid density constantly to descend; Have a strong impact on the last water efficient of borehole pump; Because of can not accurately measuring drilling fluid density, reaching other drilling parameter, cause under-voltage value to surpass designing requirement easily, can't keep normal underbalance construction.
Current still traditional positive displacement eliminator (vertical or horizontal) of extensive use in the open borehole fluid circulation both at home and abroad.This eliminator utilizes the density contrast of gas phase and liquid phase to carry out Gravity Separation, but inferior separating effect, volume is big, heavy, investment is big, gas processing capability is far smaller than the gas treatment amount that the manufacturer provides, cause that gas content exceeds standard from the drilling fluid that eliminator is discharged, a large amount of gases spread near vibrosieve, if having natural gas or hydrogen sulfide gas to overflow in the stratum, will cause serious potential safety hazard.Drilling fluid/the gas separator that utilizes cyclone separation process still is fewer, and through the experimental study discovery, cyclone separator can be handled the drilling fluid of atm number, but utilize cyclone separation process to have the unfavorable phenomenon of underflow band gas and top stream band liquid, and the draw ratio of eliminator is bigger, only utilizes cyclone separation process to realize that it also is the comparison difficulty that the drilling fluid of atm number/gas separates.
Summary of the invention
The purpose of this utility model is that to overcome existing drilling fluid/gas separator gas treatment amount low, and volume is big, the shortcoming of inferior separating effect, the drilling fluid/gas separator that provides a kind of Gravity Separation to combine with rotational flow separation.
For achieving the above object, the utility model adopts following design scheme: a kind of knockdown drilling fluid/gas separator comprises: stack, feed tube, outer cylinder body, manhole, liquid barrier, deflection plate, wireway, manhole, scum pipe, discharging tube.There is cyclone outer cylinder body inside, and cyclone can be routine, spiral or pipe column type cyclone.Feed tube is from the horizontal by an angle and tangentially enter cyclone, deflection plate be positioned at outer cylinder body inside and cyclone below, the retaining ballute by welded pipe between stack and rotary fluid.The cross section of feed tube is a rectangle or crescent.The retaining ballute is a umbrella baffle plate.
Because adopt above technical scheme, eliminator of the present utility model has following advantage:
(1) the combined type eliminator combines the advantage of gravity and centrifugation, and treating capacity is big, the separative efficiency height;
(2) umbrella-shaped structure of gas block panel makes air-flow form downward centrifugal force, has further improved the phenomenon of exhaust pipe racks liquid;
(3) simple in structure, easy to maintenance, can change cyclone separately during the cyclone serious wear.
Description of drawings
Fig. 1 is the schematic diagram of a kind of knockdown drilling fluid/gas separator of the utility model.
1. stacks among the figure, 2. retaining ballute, 3. feed tube, 4. cyclone, 5. outer cylinder body, 6. hand hole, 7. flow-stopping plate, 8. deflection plate, 9. wireway, 10. manhole, 11. scum pipes, 12. discharging tubes.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
In Fig. 1, there is cyclone 4 outer cylinder body 5 inside, and feed tube 3 is from the horizontal by an angle and tangentially enter cyclone 4, deflection plate 8 be positioned at outer cylinder body 5 inside and cyclone 4 below, retaining ballute 2 by welded pipe between stack 1 and rotary fluid 4.The cross section of feed tube 3 is a rectangle or crescent.Retaining ballute 2 is a umbrella baffle plate.
The drilling fluid admixture of gas tangentially enters cyclone 4 through feed tube 3, and most of gas flows out from cyclone 4 tops under centrifugal action, changes gas flow through retaining ballute 2, finally discharges from stack 1.The drilling fluid that flows down from cyclone 4 bottoms has portion gas, and then the mixture of low gas content amount flows on deflection plate 8, forms relatively thinner liquid film, and spinning off in the gas from liquid enters stack 1 by the gap between cyclone 4 and the outer cylinder body 5.
Claims (5)
1. knockdown drilling fluid/gas separator, comprise stack (1), feed tube (3), outer cylinder body (5), manhole (6), liquid barrier (7), deflection plate (8), wireway (9), manhole (10), scum pipe (11), discharging tube (12), it is characterized in that, there is cyclone (4) outer cylinder body (5) inside, feed tube (3) is from the horizontal by an angle and tangentially enter cyclone (4), deflection plate (8) be positioned at outer cylinder body (5) inside and cyclone (4) below, the retaining ballute (2) be positioned between stack (1) and the rotary fluid (4) by welded pipe.
2. a kind of knockdown drilling fluid/gas separator according to claim 1 is characterized in that described cyclone is the pipe column type eliminator.
3. a kind of knockdown drilling fluid/gas separator according to claim 1 is characterized in that the cross section of described feed tube (3) is a rectangle.
4. a kind of knockdown drilling fluid/gas separator according to claim 1 is characterized in that the cross section of described feed tube (3) is crescent.
5. a kind of knockdown drilling fluid/gas separator according to claim 1 is characterized in that, described retaining ballute (2) is a umbrella baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201603886U CN201433729Y (en) | 2009-06-24 | 2009-06-24 | combined drilling fluid/gas separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201603886U CN201433729Y (en) | 2009-06-24 | 2009-06-24 | combined drilling fluid/gas separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433729Y true CN201433729Y (en) | 2010-03-31 |
Family
ID=42052540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201603886U Expired - Lifetime CN201433729Y (en) | 2009-06-24 | 2009-06-24 | combined drilling fluid/gas separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433729Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040678A1 (en) * | 2011-09-19 | 2013-03-28 | Daniel Guy Pomerleau | Three-phase separation system for drilling fluids and drill cuttings |
| CN104060957A (en) * | 2014-06-13 | 2014-09-24 | 中国石油集团西部钻探工程有限公司 | Unbalanced drilling anti-blocking liquid-gas separator |
| US10081994B2 (en) | 2015-01-30 | 2018-09-25 | Fp Marangoni Inc. | Screened enclosure with vacuum ports for use in a vacuum-based drilling fluid recovery system |
-
2009
- 2009-06-24 CN CN2009201603886U patent/CN201433729Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040678A1 (en) * | 2011-09-19 | 2013-03-28 | Daniel Guy Pomerleau | Three-phase separation system for drilling fluids and drill cuttings |
| CN103930183A (en) * | 2011-09-19 | 2014-07-16 | Fp马兰格尼公司 | Three-phase separation system for drilling fluids and drill cuttings |
| US9375732B2 (en) | 2011-09-19 | 2016-06-28 | Fp Marangoni Inc. | Three-phase separation system for drilling fluids and drill cuttings |
| CN104060957A (en) * | 2014-06-13 | 2014-09-24 | 中国石油集团西部钻探工程有限公司 | Unbalanced drilling anti-blocking liquid-gas separator |
| US10081994B2 (en) | 2015-01-30 | 2018-09-25 | Fp Marangoni Inc. | Screened enclosure with vacuum ports for use in a vacuum-based drilling fluid recovery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM + CHEMICAL VICTORY OIL ENGINEERING Effective date: 20150702 Owner name: SINOPEC OILFIELD SERVICE CORPORATION Free format text: FORMER OWNER: WELL-DRILLING TECHNOLOGY INST., SHENGLI PETROLEUM ADMINISTRATION, SINOPEC Effective date: 20150702 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150702 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC Address before: 257017 No. 236, North Road, Dongying District, Shandong, Dongying Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |