CN106677730A - Dual-density well drilling underwater hollow ball injection device - Google Patents
Dual-density well drilling underwater hollow ball injection device Download PDFInfo
- Publication number
- CN106677730A CN106677730A CN201510743349.9A CN201510743349A CN106677730A CN 106677730 A CN106677730 A CN 106677730A CN 201510743349 A CN201510743349 A CN 201510743349A CN 106677730 A CN106677730 A CN 106677730A
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- China
- Prior art keywords
- hollow ball
- stage separator
- separator
- anchor
- stage
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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.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 29
- 239000007924 injection Substances 0.000 title claims abstract description 29
- 238000005553 drilling Methods 0.000 title claims abstract description 21
- 230000009977 dual effect Effects 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000010790 dilution Methods 0.000 claims description 19
- 239000012895 dilution Substances 0.000 claims description 19
- 210000002445 nipple Anatomy 0.000 claims description 9
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 2
- 239000003085 diluting agent Substances 0.000 abstract 5
- 238000007599 discharging Methods 0.000 abstract 3
- 239000000243 solution Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a dual-density well drilling underwater hollow ball injection device. The dual-density well drilling underwater hollow ball injection device comprises a hollow ball injection connector, a diluent injection branch pipeline, a first-stage separator, a second-stage separator connection pipeline, an anchor, a carrier liquid discharging opening, a second-stage separator, a hollow ball discharging pipeline and a diluent injection pipeline connector. The separators are fixed to the anchor and are put into the seabed through a down-pass device, and the anchor is inserted into soil to fix the separators; diluent enters the first-stage separator for first time of separation through the diluent injection pipeline connector and the diluent injection branch pipeline, but is not completely separated; and a base solution of the first-stage separator enters the second-stage separator through the second-stage separator connection pipeline for separating hollow balls again, the hollow balls separated out twice all enter a riser annulus through the hollow ball discharging pipeline, the hollow ball injection connector and a hose, and a second-stage separation base solution is directly discharged. The high-purity hollow balls separated by the separators enter the riser annulus to dilute mud, so that dual-density well drilling is implemented successfully.
Description
Technical field
The present invention relates to dual density drilling servicing unit field, especially a kind of dual density drilling underwater hollow ball injection device.
Background technology
In order to solve strata pressure that seabed deepwater drilling faces and fracture pressure curve closely, it is difficult to keep bottom pressure subject matter between, grown up abroad the nineties in 20th century dual density drilling technology, and it is a kind of important means for implementing dual density drilling to note hollow ball.Hollow ball dual density drilling realizes dual density drilling by injecting low-density hollow ball in water proof bottom of the tube.Wherein, the dilution that hollow ball and carrying liquid are constituted is by independent pipelined to seabed.DeGrain is diluted to mud if directly the dilution of hollow ball and carrying liquid composition being injected into marine riser annular space, therefore hollow ball need to be separated under water, the hollow ball for making higher degree enters the more preferable dilution effect of marine riser annular space acquisition, it is ensured that dual density drilling is smoothly implemented.
The content of the invention
The technical problem to be solved in the present invention is the separation for completing hollow ball under water and carrying liquid, there is provided one kind improves hollow ball purity, it is ensured that the dual density drilling underwater hollow ball injection device of the smooth enforcement of dual density drilling.
The technical scheme that it is adopted is as follows：
A kind of dual density drilling underwater hollow ball injection device, including hollow ball fill nipple 1, dilution injection take-off line 2, primary separator 3, two-stage separator connecting pipeline 4, anchor 5, carrying liquid outlet 6, second-stage separator 7, hollow ball discharge pipe 8, dilution injection pipe joint 9；Wherein, primary separator 3 and the parallel arranged of second-stage separator 7 are fixed on the top of anchor 5, two-stage separator connecting pipeline 4 is connected to the bottom of primary separator 3 and the top of second-stage separator 7, hollow ball fill nipple 1 is connected to the top of primary separator 3 and second-stage separator 7 by hollow ball discharge pipe 8, dilution injection pipe joint 9 accesses the top of primary separator 3, carries the bottom that liquid outlet 6 is arranged on second-stage separator 7.
The primary separator 3 and second-stage separator 7 are hydrocyclone.
The top of the anchor 5 arranges disk, and primary separator 3 and second-stage separator 7 are fixed on disk, and the bottom of anchor 5 is taper.
Before the device of the present invention is by the dilution injection marine riser annular space of hollow ball and carrying liquid composition, hollow ball is separated.The hollow ball of higher degree enters marine riser annular space after separated device, and the mud in marine riser annular space is diluted, and by the mud in change marine riser annular space extent control bottom pressure is diluted, and enables dual density drilling successful implementation.
Description of the drawings
Fig. 1 is the front view of an embodiment of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the top view of Fig. 2.
In figure, 1, hollow ball fill nipple；2nd, dilution injection take-off line；3rd, primary separator；4th, two-stage separator connecting pipeline；5th, anchor；6th, liquid outlet is carried；7th, second-stage separator；8th, hollow ball discharge pipe；9th, dilution injection pipe joint.
Specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, 2, the invention mainly comprises hollow ball fill nipple 1, dilution injection take-off line 2, primary separator 3, two-stage separator connecting pipeline 4, anchor 5, carrying liquid outlet 6, second-stage separator 7, hollow ball discharge pipe 8, dilution injection pipe joint 9.Wherein, primary separator 3 and the parallel arranged of second-stage separator 7 are fixed on the top of anchor 5, two-stage separator connecting pipeline 4 is connected to the bottom of primary separator 3 and the top of second-stage separator 7, hollow ball fill nipple 1 is connected to the top of primary separator 3 and second-stage separator 7 by hollow ball discharge pipe 8, dilution injection pipe joint 9 accesses the top of primary separator 3, carries the bottom that liquid outlet 6 is arranged on second-stage separator 7.
The primary separator 3 and second-stage separator 7 are hydrocyclone.
The top of the anchor 5 arranges disk, and primary separator 3 and second-stage separator 7 are fixed on disk, and the bottom of anchor 5 is taper.
The working mechanism and effect of apparatus of the present invention：
Separated with carrying the dilution that is mixed into of liquid and injecting take-off line 2 via dilution injection pipe joint 9, dilution and carry out first time into primary separator 3 by hollow ball, the hollow ball isolated enters marine riser annular space via hollow ball discharge pipe 8, hollow ball fill nipple 1, flexible pipe；It is not kept completely separate through the hollow ball of primary separator 3, the bottom liquid Jing two-stage separators connecting pipeline 4 of primary separator 3 separates again hollow ball into second-stage separator 7, the detached hollow ball of hollow ball and one-level isolated enters marine riser annular space via hollow ball discharge pipe 8, hollow ball fill nipple 1, flexible pipe together, and the second-order separation bottom liquid Jing carries liquid outlet 6 and directly discharges；The separate mode that the separator is adopted is hydrocyclone separation.The separator is fixed on anchor 5, by seabed is entered under lowering device, in the insertion soil of anchor 5 whole system is fixed.
Hollow ball need to enter seabed by carrying liquid band, if being not isolated the dilution for being directly injected into hollow ball and carrying liquid composition, play diluting effect to the mud in marine riser annular space unobvious.The hollow ball of higher degree enters marine riser annular space after separated device, and it is good to be diluted effect to the mud in marine riser annular space, and adjustable extent is big, by changing marine riser annular space in mud dilute extent control bottom pressure, enable dual density drilling successful implementation.
Claims (3)
1. a kind of dual density drilling underwater hollow ball injection device, it is characterised in that：Including hollow ball fill nipple（1）, dilution injection take-off line（2）, primary separator（3）, two-stage separator connecting pipeline（4）, anchor（5）, carry liquid outlet（6）, second-stage separator（7）, hollow ball discharge pipe（8）, dilution injection pipe joint（9）；Wherein, primary separator（3）And second-stage separator（7）Parallel arranged is fixed on anchor（5）Top, two-stage separator connecting pipeline（4）It is connected to primary separator（3）Bottom and second-stage separator（7）Top, hollow ball fill nipple（1）By hollow ball discharge pipe（8）It is connected to primary separator（3）And second-stage separator（7）Top, dilution injection pipe joint（9）Access primary separator（3）Top, carries liquid outlet（6）It is arranged on second-stage separator（7）Bottom.
2. dual density drilling underwater hollow ball injection device according to claim 1, it is characterised in that：The primary separator（3）And second-stage separator（7）It is hydrocyclone.
3. dual density drilling underwater hollow ball injection device according to claim 1 and 2, it is characterised in that：The anchor（5）Top arranges disk, primary separator（3）And second-stage separator（7）It is fixed on disk, anchor（5）Bottom is taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743349.9A CN106677730A (en) | 2015-11-05 | 2015-11-05 | Dual-density well drilling underwater hollow ball injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743349.9A CN106677730A (en) | 2015-11-05 | 2015-11-05 | Dual-density well drilling underwater hollow ball injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106677730A true CN106677730A (en) | 2017-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510743349.9A Pending CN106677730A (en) | 2015-11-05 | 2015-11-05 | Dual-density well drilling underwater hollow ball injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677730A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764850A (en) * | 2020-06-22 | 2020-10-13 | 中国石油大学(北京) | Hollow ball filtering and separating device and drilling string |
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| JPH1179764A (en) * | 1997-08-27 | 1999-03-23 | Tokai Kogyo Kk | Method of refining glass hollow ball excellent in water resistance |
| US20040234425A1 (en) * | 2002-11-22 | 2004-11-25 | Petroleo Brasileiro S.A. - Petrobras | Cyclone system, process and device for disengaging solid and gaseous particles in FCC processes with reduced coke formation in disengager vessels |
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| CN103899290A (en) * | 2014-03-20 | 2014-07-02 | 宝鸡石油机械有限责任公司 | Underwater compact type oil-gas-water-solid separation system |
| CN104053753A (en) * | 2011-06-24 | 2014-09-17 | 综合能源有限公司 | Fines capture and recycle system and uses thereof |
| CN104412420A (en) * | 2012-06-21 | 2015-03-11 | 月岛机械株式会社 | Production method for reaction-agglomerated particles, production method for positive electrode active material for lithium ion cell, production method for lithium ion cell, lithium ion cell, and apparatus for production of reaction-agglomerated particles |
| CN104763333A (en) * | 2015-04-01 | 2015-07-08 | 中国海洋石油总公司 | Drilling system and method based on subsea pump pressure control |
| CN205172485U (en) * | 2015-11-05 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Dual density well drilling is clean shot injection device under water |
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2015
- 2015-11-05 CN CN201510743349.9A patent/CN106677730A/en active Pending
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|---|---|---|---|---|
| JPH1179764A (en) * | 1997-08-27 | 1999-03-23 | Tokai Kogyo Kk | Method of refining glass hollow ball excellent in water resistance |
| US20040234425A1 (en) * | 2002-11-22 | 2004-11-25 | Petroleo Brasileiro S.A. - Petrobras | Cyclone system, process and device for disengaging solid and gaseous particles in FCC processes with reduced coke formation in disengager vessels |
| CN2912806Y (en) * | 2005-11-08 | 2007-06-20 | 中国科学院力学研究所 | Cyclone sand separator |
| CN2877878Y (en) * | 2006-03-10 | 2007-03-14 | 范爱民 | Polypropene whirlwind separator |
| CN1932234A (en) * | 2006-10-12 | 2007-03-21 | 中国海洋石油总公司 | Method and apparatus for realizing double-gradient well drilling |
| CN201140122Y (en) * | 2007-11-28 | 2008-10-29 | 灵宝市金源矿业有限责任公司 | Long cone angle rotational flow apparatus |
| CN104053753A (en) * | 2011-06-24 | 2014-09-17 | 综合能源有限公司 | Fines capture and recycle system and uses thereof |
| CN104412420A (en) * | 2012-06-21 | 2015-03-11 | 月岛机械株式会社 | Production method for reaction-agglomerated particles, production method for positive electrode active material for lithium ion cell, production method for lithium ion cell, lithium ion cell, and apparatus for production of reaction-agglomerated particles |
| CN102784728A (en) * | 2012-08-16 | 2012-11-21 | 中国石油天然气股份有限公司 | Underground two-stage cyclone separator |
| CN103899290A (en) * | 2014-03-20 | 2014-07-02 | 宝鸡石油机械有限责任公司 | Underwater compact type oil-gas-water-solid separation system |
| CN104763333A (en) * | 2015-04-01 | 2015-07-08 | 中国海洋石油总公司 | Drilling system and method based on subsea pump pressure control |
| CN205172485U (en) * | 2015-11-05 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Dual density well drilling is clean shot injection device under water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764850A (en) * | 2020-06-22 | 2020-10-13 | 中国石油大学(北京) | Hollow ball filtering and separating device and drilling string |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170517 |