CN101994492B - Annular space type foam drilling mechanical defoamer - Google Patents
Annular space type foam drilling mechanical defoamer Download PDFInfo
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- CN101994492B CN101994492B CN 201010520860 CN201010520860A CN101994492B CN 101994492 B CN101994492 B CN 101994492B CN 201010520860 CN201010520860 CN 201010520860 CN 201010520860 A CN201010520860 A CN 201010520860A CN 101994492 B CN101994492 B CN 101994492B
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Abstract
The invention relates to an annular space type foam drilling mechanical defoamer. A foam collection tube is connected with a body, the body is connected with a fixing part, the fixing part is connected with a left air distribution seat, a left case is connected with a right air distribution seat by virtue of a connecting piece, the right air distribution seat is fixed on the step of a right case, a rear sprinkler body is connected with a right case by virtue of a bolt, a diffusion tube is connected with the rear sprinkler body by virtue of a flange, a chock tube and the body form a left Laval nozzle, the chock tube and the rear sprinkle body form a right Laval nozzle, the device is provided with four cavities, the left Laval nozzle is communicated with a left air inlet tube by virtue of a second cavity, and the right Laval nozzle is communicated with the left air inlet tube by virtue of a fourth cavity. The invention overcomes the defects that chemical method influences performances of foam base solution and physical method has low defoaming efficiency in the prior art, twin-stage annular space type Laval nozzle design is adopted, a wider vacuum zone is formed in the interior of the defoamer and high vacuum degree is obtained, and defoaming efficiency is greatly improved. The invention solves the problems that foam delivery capacity of large well hole is high, viscosity is high and defoaming is difficult.
Description
Technical field:
The present invention relates to a kind of drilling tools, the device of the mechanical defoaming in the especially foam drilling process.
Background technology:
Froth breaking is the important component part of foam drilling technology, and debubbling method commonly used mainly contains Physical and chemical method at present.Physical mainly is to utilize the variation of temperature, pressure or mechanical external force to make the removal of foam, and chemical rule is to carry out froth breaking by chemical defoamer.Chemistry froth breaking method is a kind of effective method, quick froth breaking, but defoamer add foaming capacity and the sharply decline of stability that affiliation makes foam base fluid.Therefore for the foam base fluid behind the froth breaking can be recycled, must adopt the physical defoaming method.More domestic oil fields are behind the certain research and practice of process, some physical defoaming devices or method have also been proposed, such as centrifugal froth breaking method, heating power froth breaking method etc., but owing to the structure design reason, defoaming effectiveness is lower, far can not satisfy the foam drilling actual froth breaking demand of constructing.Especially big size hole is taken the rock requirement for satisfying, and the foam discharge capacity is large, and viscosity is high, and froth breaking is more difficult.
Summary of the invention:
Purpose of the present invention just is to overcome that chemical method affects the foam base fluid performance in the above-mentioned prior art, and the defective that the Physical defoaming effectiveness is low provides a kind of annular space type foam drilling mechanical defoamer with higher defoaming effectiveness.
The objective of the invention is to be achieved through the following technical solutions:
Annular space type foam drilling mechanical defoamer, to be connected with body 2 by bolt by foam receiving tube 1, body 2 is connected with fixture 3 by bolt, left distribution seat 4 is provided with boss, fixture 3 is connected with left distribution seat 4 by bolt, one end of left shell 6 is provided with step, left distribution seat 4 is bolted on the step, one end of connector 7 is connected with left shell 6 by bolt, the other end of connector 7 is connected with right distribution seat 8 by bolt, right shell body 9 is connected with right distribution seat 8 by bolt, rear sprinkler body 10 is connected with right shell body 9 by bolt, anemostat 11 is connected with rear sprinkler body 10 by flange, the annular spaces that the external surface of the inner surface of trunnion 5 and body 2 consists of is left De Laval noz(zle) 18, the space that consists of between trunnion 5 and the rear sprinkler body 10 is right De Laval noz(zle) 19, by body 2, fixture 3, the annular space that left distribution seat 4 and trunnion 5 form is the first cavity 14, the first cavity 14 is communicated with left De Laval noz(zle) 18, by left distribution seat 4, the annular space that trunnion 5 and left shell 6 form is the second cavity 15, left shell 6 is provided with the left air inlet pipe 12 that is communicated with the second cavity 15, the second cavity 15 and the first cavity 14 are communicated with by left distribution seat 4 set interstitial holes, by left shell 6, connector 7, the annular space that right distribution seat 8 and trunnion 5 form is the 3rd cavity 16, the 3rd cavity 16 is communicated with right De Laval noz(zle) 19, by right distribution seat 8, the annular space that right shell body 9 and rear sprinkler body 10 form is the 4th cavity 17, right shell body 9 is provided with left air inlet pipe 13, the three cavitys 16 that are communicated with the 4th cavity 17 and the 4th cavity 17 and is communicated with formation by right distribution seat 8 set interstitial holes.
The internal conical surface that is jointly consisted of by body 2, trunnion 5, rear sprinkler body 10 and anemostat 11 and angle 5-10 ° of center line.The inner surface of trunnion 5 is that the inner surface of rear sprinkler body 10 is identical with the inner surface structure of trunnion 5 by the curved surface of hot this base curves design in Vito.Left distribution seat 4 is connected with left shell and is connected with trunnion 5 stationary fits, and right distribution seat 8 is connected with right shell body and is connected with rear sprinkler body 10 stationary fits.
Beneficial effect: the present invention has overcome that chemical method affects foam base fluid performance and the low defective of Physical defoaming effectiveness in the prior art, utilize supersonic airstream to spray the generation vacuum foam expansion is broken, utilize simultaneously the shearing force that produces in high velocity air and the aerated fluid energy exchange processes to make the foam shear fracture.Since adopted the design of twin-stage circular-gap De Laval noz(zle), inner wider region of no pressure and the higher vacuum of forming of froth breaker, and defoaming effectiveness increases substantially.Solved big size hole, the foam discharge capacity is large, and viscosity is high, the froth breaking hard problem.
Description of drawings:
Fig. 1 annular space type foam drilling mechanical defoamer structure chart
Fig. 2 is the enlarged drawing of accompanying drawing 1 left De Laval noz(zle) 18
Fig. 3 is the enlarged drawing of accompanying drawing 1 right De Laval noz(zle) 19
1 foam receiving tube, 2 bodies, 3 fixtures, 4 left distribution seats, 5 trunnions, 6 left shells, 7 connectors, 8 right distribution seats, 9 right shell bodies, 10 rear sprinkler bodies, 11 anemostats, 12 left air inlet pipe, 13 right air inlet pipe, 14 first cavitys, 15 second cavitys, 16 the 3rd cavitys, 17 the 4th cavitys, 18 left De Laval noz(zle)s, 19 right De Laval noz(zle)s
The specific embodiment:
Be described in further detail below in conjunction with drawings and Examples:
Annular space type foam drilling mechanical defoamer, to be connected with body 2 by bolt by foam receiving tube 1, body 2 is connected with fixture 3 by bolt, left distribution seat 4 is provided with boss, fixture 3 is connected with left distribution seat 4 by bolt, one end of left shell 6 is provided with step, left distribution seat 4 is bolted on the step, one end of connector 7 is connected with left shell 6 by bolt, the other end of connector 7 is connected with right distribution seat 8 by bolt, right distribution seat 8 is fixed on right shell body 9 steps, rear sprinkler body 10 is connected with right shell body 9 by bolt, anemostat 11 is connected with rear sprinkler body 10 by flange, and rear sprinkler body 10 inwalls and anemostat 11 inwalls are tangent, forms smooth runner after connecting.The internal conical surface that is jointly consisted of by body 2, trunnion 5, rear sprinkler body 10 and anemostat 11 and angle 5-10 ° of center line.The inner surface of trunnion 5 is that the inner surface of rear sprinkler body 10 is identical with the inner surface structure of trunnion 5 by the curved surface of hot this base curves design in Vito.Left distribution seat 4 is connected with left shell and is connected with trunnion 5 stationary fits, and right distribution seat 8 is connected with right shell body and is connected with rear sprinkler body 10 stationary fits.The annular spaces that the external surface of the inner surface of trunnion 5 and body 2 consists of is left De Laval noz(zle) 18, the space that consists of between trunnion 5 and the rear sprinkler body 10 is right De Laval noz(zle) 19, by body 2, fixture 3, the annular space that left distribution seat 4 and trunnion 5 form is the first cavity 14, the first cavity 14 is communicated with left De Laval noz(zle) 18, by left distribution seat 4, the annular space that trunnion 5 and left shell 6 form is the second cavity 15, left shell 6 is provided with the left air inlet pipe 12 that is communicated with the second cavity 15, the second cavity 15 and the first cavity 14 are communicated with by left distribution seat 4 set interstitial holes, by left shell 6, connector 7, the annular space that right distribution seat 8 and trunnion 5 form is the 3rd cavity 16, the 3rd cavity 16 is communicated with right De Laval noz(zle) 19, by right distribution seat 8, the annular space that right shell body 9 and rear sprinkler body 10 form is the 4th cavity 17, right shell body 9 is provided with left air inlet pipe 13, the three cavitys 16 that are communicated with the 4th cavity 17 and the 4th cavity 17 and is communicated with formation by right distribution seat 8 set interstitial holes.
Embodiment 1
Annular space type foam drilling mechanical defoamer, to be connected with body 2 by bolt by foam receiving tube 1, body 2 is connected with fixture 3 by bolt, left distribution seat 4 is provided with boss, fixture 3 is connected with left distribution seat 4 by bolt, one end of left shell 6 is provided with step, left distribution seat 4 is bolted on the step, one end of connector 7 is connected with left shell 6 by bolt, the other end of connector 7 is connected with right distribution seat 8 by bolt, right distribution seat 8 is fixed on right shell body 9 steps, rear sprinkler body 10 is connected with right shell body 9 by bolt, anemostat 11 is connected with rear sprinkler body 10 by flange, and rear sprinkler body 10 inwalls and anemostat 11 inwalls are tangent, forms smooth runner after connecting.5 ° of the internal conical surface that is jointly consisted of by body 2, trunnion 5, rear sprinkler body 10 and anemostat 11 and the angles of center line.The inner surface of trunnion 5 is that the inner surface of rear sprinkler body 10 is identical with the inner surface structure of trunnion 5 by the curved surface of hot this base curves design in Vito.Left distribution seat 4 is connected with left shell and is connected with trunnion 5 stationary fits, and right distribution seat 8 is connected with right shell body and is connected with rear sprinkler body 10 stationary fits.The annular spaces that the external surface of the inner surface of trunnion 5 and body 2 consists of is left De Laval noz(zle) 18, the space that consists of between trunnion 5 and the rear sprinkler body 10 is right De Laval noz(zle) 19, by body 2, fixture 3, the annular space that left distribution seat 4 and trunnion 5 form is the first cavity 14, the first cavity 14 is communicated with left De Laval noz(zle) 18, by left distribution seat 4, the annular space that trunnion 5 and left shell 6 form is the second cavity 15, left shell 6 is provided with the left air inlet pipe 12 that is communicated with the second cavity 15, the second cavity 15 and the first cavity 14 are communicated with by left distribution seat 4 set interstitial holes, by left shell 6, connector 7, the annular space that right distribution seat 8 and trunnion 5 form is the 3rd cavity 16, the 3rd cavity 16 is communicated with right De Laval noz(zle) 19, by right distribution seat 8, the annular space that right shell body 9 and rear sprinkler body 10 form is the 4th cavity 17, right shell body 9 is provided with left air inlet pipe 13, the three cavitys 16 that are communicated with the 4th cavity 17 and the 4th cavity 17 and is communicated with formation by right distribution seat 8 set interstitial holes.
Gas enters toroidal cavity 15 and toroidal cavity 17 from air inlet pipe 12 and air inlet pipe 13 respectively, after distribution seat 4 and 8 distributions of distribution seat, enter respectively toroidal cavity 14 and toroidal cavity 16, then spray with ultrasonic flow velocity by left De Laval noz(zle) 18 and right De Laval noz(zle) 19, air-flow after the ejection is respectively along trunnion 5 inwalls and rear sprinkler body 10 inwall jet attached flows, in body 2, trunnion 5, the rear sprinkler body 10 inner regions of no pressure that produce.After foam enters from foam feed tube 1, swelling fracture under suction function.Because attached wall air-flow has higher kinetic energy, when aerated fluid through trunnion 5 and after during sprinkler body 10, aerated fluid contacts with high velocity air and energy exchange occurs, the generation shearing force is with the foam shearing-crushing.Pressure returned to normal pressure gradually when the foam base fluid behind the froth breaking was flowed through anemostat 11, was discharged by anemostat 11 at last.
Annular space type foam drilling mechanical defoamer, to be connected with body 2 by bolt by foam receiving tube 1, body 2 is connected with fixture 3 by bolt, left distribution seat 4 is provided with boss, fixture 3 is connected with left distribution seat 4 by bolt, one end of left shell 6 is provided with step, left distribution seat 4 is bolted on the step, one end of connector 7 is connected with left shell 6 by bolt, the other end of connector 7 is connected with right distribution seat 8 by bolt, right distribution seat 8 is fixed on right shell body 9 steps, rear sprinkler body 10 is connected with right shell body 9 by bolt, anemostat 11 is connected with rear sprinkler body 10 by flange, and rear sprinkler body 10 inwalls and anemostat 11 inwalls are tangent, forms smooth runner after connecting.10 ° of the internal conical surface that is jointly consisted of by body 2, trunnion 5, rear sprinkler body 10 and anemostat 11 and the angles of center line.The inner surface of trunnion 5 is that the inner surface of rear sprinkler body 10 is identical with the inner surface structure of trunnion 5 by the curved surface of hot this base curves design in Vito.Left distribution seat 4 is connected with left shell and is connected with trunnion 5 stationary fits, and right distribution seat 8 is connected with right shell body and is connected with rear sprinkler body 10 stationary fits.The annulus that the external surface of the inner surface of trunnion 5 and body 2 consists of is left De Laval noz(zle) 18, the space that consists of between trunnion 5 and the rear sprinkler body 10 is right De Laval noz(zle) 19, by body 2, fixture 3, the annular space that left distribution seat 4 and trunnion 5 form is the first cavity 14, the first cavity 14 is communicated with left De Laval noz(zle) 18, by left distribution seat 4, the annular space that trunnion 5 and left shell 6 form is the second cavity 15, left shell 6 is provided with the left air inlet pipe 12 that is communicated with the second cavity 15, the second cavity 15 and the first cavity 14 are communicated with by left distribution seat 4 set interstitial holes, by left shell 6, connector 7, the annular space that right distribution seat 8 and trunnion 5 form is the 3rd cavity 16, the 3rd cavity 16 is communicated with right De Laval noz(zle) 19, by right distribution seat 8, the annular space that right shell body 9 and rear sprinkler body 10 form is the 4th cavity 17, right shell body 9 is provided with left air inlet pipe 13, the three cavitys 16 that are communicated with the 4th cavity 17 and the 4th cavity 17 and is communicated with formation by right distribution seat 8 set interstitial holes.
Gas enters toroidal cavity 15 and toroidal cavity 17 from radial air inlet pipe 12 and radial air inlet pipe 13 respectively, after distribution seat 4 and 8 distributions of distribution seat, enter respectively toroidal cavity 14 and toroidal cavity 16, then spray with ultrasonic flow velocity by left De Laval noz(zle) 18 and right De Laval noz(zle) 19, air-flow after the ejection is respectively along trunnion 5 inwalls and rear sprinkler body 10 inwall jet attached flows, in body 2, trunnion 5, the rear sprinkler body 10 inner regions of no pressure that produce.After foam enters from foam feed tube 1, swelling fracture under suction function.Because attached wall air-flow has higher kinetic energy, when aerated fluid through trunnion 5 and after during sprinkler body 10, aerated fluid contacts with high velocity air and energy exchange occurs, the generation shearing force is with the foam shearing-crushing.Pressure returned to normal pressure gradually when the foam base fluid behind the froth breaking was flowed through anemostat 11, was discharged by anemostat 11 at last.
Claims (4)
1. annular space type foam drilling mechanical defoamer, it is characterized in that, to be connected with body (2) by bolt by foam receiving tube (1), body (2) is connected with fixture (3) by bolt, left distribution seat (4) is provided with boss, fixture (3) is connected with left distribution seat (4) by bolt, one end of left shell (6) is provided with step, left distribution seat (4) is bolted on the step, one end of connector (7) is connected with left shell (6) by bolt, the other end of connector (7) is connected with right distribution seat (8) by bolt, right distribution seat (8) is fixed on right shell body (9) step, rear sprinkler body (10) is bolted on right shell body (9) gets out of a predicament or an embarrassing situation, anemostat (11) is connected with rear sprinkler body (10) by flange, the annular spaces that the external surface of the inner surface of trunnion (5) and body (2) consists of is left De Laval noz(zle) (18), the space that consists of between trunnion (5) and the rear sprinkler body (10) is right De Laval noz(zle) (19), by body (2), fixture (3), the annular space that left distribution seat (4) and trunnion (5) form is the first cavity (14), the first cavity (14) is communicated with left De Laval noz(zle) (18), by left distribution seat (4), the annular space that trunnion (5) and left shell (6) form is the second cavity (15), left shell (6) is provided with the left air inlet pipe (12) that is communicated with the second cavity (15), the second cavity (15) is communicated with by the set interstitial hole of left distribution seat (4) with the first cavity (14), by left shell (6), connector (7), the annular space that right distribution seat (8) and trunnion (5) form is the 3rd cavity (16), the 3rd cavity (16) is communicated with right De Laval noz(zle) (19), by right distribution seat (8), the annular space that right shell body (9) and rear sprinkler body (10) form is the 4th cavity (17), right shell body (9) is provided with the left air inlet pipe (13) that is communicated with the 4th cavity (17), and the 3rd cavity (16) is communicated with formation with the 4th cavity (17) by the set interstitial hole of right distribution seat (8).
2. according to annular space type foam drilling mechanical defoamer claimed in claim 1, it is characterized in that, by the common internal conical surface that consists of of body (2), trunnion (5), rear sprinkler body (10) and anemostat (11) and angle 5-10 ° of center line.
3. according to annular space type foam drilling mechanical defoamer claimed in claim 1, it is characterized in that, the inner surface of trunnion (5) is that the inner surface of rear sprinkler body (10) is identical with the inner surface structure of trunnion (5) by the curved surface of hot this base curves design in Vito.
4. according to annular space type foam drilling mechanical defoamer claimed in claim 1, it is characterized in that, left distribution seat (4) is connected 6 with left shell) be connected with trunnion (5) stationary fit, right distribution seat (8) is connected 9 with right shell body) be connected with rear sprinkler body (10) stationary fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010520860 CN101994492B (en) | 2010-10-27 | 2010-10-27 | Annular space type foam drilling mechanical defoamer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010520860 CN101994492B (en) | 2010-10-27 | 2010-10-27 | Annular space type foam drilling mechanical defoamer |
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| Publication Number | Publication Date |
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| CN101994492A CN101994492A (en) | 2011-03-30 |
| CN101994492B true CN101994492B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010520860 Expired - Fee Related CN101994492B (en) | 2010-10-27 | 2010-10-27 | Annular space type foam drilling mechanical defoamer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311979A (en) * | 2015-11-24 | 2016-02-10 | 宝鸡石油机械有限责任公司 | High-flow liquid-powder mixing device |
| CN106223882B (en) * | 2016-08-31 | 2018-11-02 | 浙江省工程勘察院 | A kind of foam drilling rotation internal combustion mechanical defoaming device and its debubbling method |
| CN106837220B (en) * | 2017-04-21 | 2023-04-07 | 吉林大学 | Multistage strong spiral flow type mechanical defoamer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120816A (en) * | 1976-08-06 | 1978-10-17 | Societe Nationale Elf Aquitaine (Production) | Defoaming apparatus |
| CN2244611Y (en) * | 1996-01-30 | 1997-01-08 | 辽河石油勘探局钻井二公司 | High-speed rotary defoaming device |
| CN2866786Y (en) * | 2006-03-01 | 2007-02-07 | 新疆石油管理局钻井工艺研究院 | Slot type defoaming device |
| CN201474638U (en) * | 2009-07-31 | 2010-05-19 | 中国石油化工集团公司 | Defoaming device for foam drilling machine |
| CN201818256U (en) * | 2010-10-27 | 2011-05-04 | 吉林大学 | Annular gap type mechanical defoamer for foam drilling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8955619B2 (en) * | 2002-05-28 | 2015-02-17 | Weatherford/Lamb, Inc. | Managed pressure drilling |
-
2010
- 2010-10-27 CN CN 201010520860 patent/CN101994492B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120816A (en) * | 1976-08-06 | 1978-10-17 | Societe Nationale Elf Aquitaine (Production) | Defoaming apparatus |
| CN2244611Y (en) * | 1996-01-30 | 1997-01-08 | 辽河石油勘探局钻井二公司 | High-speed rotary defoaming device |
| CN2866786Y (en) * | 2006-03-01 | 2007-02-07 | 新疆石油管理局钻井工艺研究院 | Slot type defoaming device |
| CN201474638U (en) * | 2009-07-31 | 2010-05-19 | 中国石油化工集团公司 | Defoaming device for foam drilling machine |
| CN201818256U (en) * | 2010-10-27 | 2011-05-04 | 吉林大学 | Annular gap type mechanical defoamer for foam drilling |
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| CN101994492A (en) | 2011-03-30 |
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