CN103244065A - Wellhead mud backflow device and drilling mud cycle test system - Google Patents
Wellhead mud backflow device and drilling mud cycle test system Download PDFInfo
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- CN103244065A CN103244065A CN2012100306319A CN201210030631A CN103244065A CN 103244065 A CN103244065 A CN 103244065A CN 2012100306319 A CN2012100306319 A CN 2012100306319A CN 201210030631 A CN201210030631 A CN 201210030631A CN 103244065 A CN103244065 A CN 103244065A
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Abstract
The invention discloses a wellhead mud backflow device and a drilling mud cycle test system. The wellhead mud backflow device comprises a pipe. The pipe comprises an open connecting end and a closed bottom, the open connecting end is connected with a diverter, and a reinforcing mechanism is arranged at the bottom of the pipe. The drilling mud cycle test system comprises a mud filling channel and a mud backflow channel, and the mud filling channel is communicated with the mud backflow channel via the wellhead mud backflow device, so that a mud cycle loop is formed. The wellhead mud backflow device and the drilling mud cycle test system have the advantages that the wellhead mud backflow device can replace a blowout preventer and a flow guide pipe to carry out mud cycle tests, the tests are carried out by the drilling mud cycle test system and the blowout preventer synchronously, the waiting time of the test system is shortened, test risks of the test system are reduced, and the test cost is lowered; the wellhead mud backflow device is simple in structure, can be installed easily and conveniently, and is unaffected by experimental water environments; and the drilling mud cycle test system is low in test cost, has few test risks and is unaffected by project schedule.
Description
Technical field
The present invention relates to a kind of well head mud reflux and drilling mud loop test system.
Background technology
After debugging was finished to maritime applications system and well system, authentication (CDS) code requirement according to steel ship construction rules (ABS) and well system need carry out combined debugging to drilling system, guarantees that mud can reflux smoothly in the drilling process at offshore boring island.
As shown in Figure 1, the mud in the mud pit 100 drives 106, drilling rod 107, well head 108, returns again in the mud pit 100 after being sheathed on the outer mozzle 109 of drilling rod 107 or being sheathed on the outer marine riser of drilling rod, the commentaries on classics spray apparatus 110 that is connected with mozzle 109, mud return duct 111, scraper 112, slurry dispenser 113, vibrosieve 114, mud conditioning jar 115, mud overflow passage 116 by mud charge pump 101, high pressure slurry pump 102, mud standpipe manifold 103, mud standpipe 104, mud hose 105, top successively during normal drillng operation.
But in order to ensure the operate as normal of whole well system, before formally carrying out drillng operation, need this system is carried out the mud circulation test.As shown in Figure 2, in existing mud circulation test process, connect a preventer 108 ' in the bottom of mozzle 109, the order of connection of remaining part is identical with normal drillng operation among Fig. 1.In test process, formed the mud circulation loop of sealing after preventer 108 ' cuts out, just can carry out the mud reflux test subsequently.During pending formal drillng operation, the removal preventer gets final product.
There is following shortcoming in existing mud circulation test:
1), need mozzle and preventer and control system thereof, require very high to project process.
2), because the length requirement of mozzle and preventer, this test need be carried out the test request harshness in 50 meters marine sites more than the depth of water.
3), mozzle and lubricator self involve great expense, preventer is delegated to following 50 meters of the water surface, so test very risky.
4), before preventer is connected to the mud circulation test macro, need to carry out the test of long period, cause can't satisfying on the time needs of mud circulation test, incur loss through delay the testing time of the circulating system.
Summary of the invention
The technical problem to be solved in the present invention is to involve great expense for the preventer that overcomes prior art, testing time in early stage is long, make the mud circulation test macro comparatively carrying out under the rigorous environment, and operation risk is big, the defective that cost is high provides a kind of well head mud reflux and drilling mud loop test system.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of well head mud reflux, its characteristics are that it comprises a tubing, and this tubing comprises that one is used for changeing the link that spray apparatus links to each other, opens wide with one, and the bottom of a sealing, and this bottom is provided with some reinforcing mechanisms.
Wherein, this link is provided with a flange adaptive with this commentaries on classics spray apparatus, and this tubing is connected by this flange with this commentaries on classics spray apparatus.
Wherein, the external surface of this tubing sets firmly some horses that hang.Describedly hang horse and be used for this well head mud reflux of lifting in order to carry out the installation or removal operation.
Wherein, this bottom also is provided with a base plate that extends radially outwardly along this tubing.This base plate is used for this bottom is strengthened, when bearing the mud circulation test to the impact of bottom, to simulate shaft mouth operation truly.
Wherein, this reinforcing mechanisms is some brackets, and a side and this tubing of this bracket are affixed, and the opposite side of this bracket and this base plate are affixed.This bracket is used for this bottom is strengthened, and improves the holding capacity that the bottom is impacted mud, to simulate shaft mouth operation truly.
The present invention also provides a kind of drilling mud loop test system, it comprises mud perfusion path and a mud current return circuit, its characteristics are that this mud perfusion path and this mud current return circuit are communicated with by described well head mud reflux, form a mud circulation loop.
Wherein, this mud perfusion path comprises and connecting successively: this mud perfusion path comprises and connecting successively: a mud charge pump that is connected with a mud pit, a high pressure slurry pump, a mud standpipe manifold, at least one mud standpipe, at least one mud hose, push up to drive and drive to be connected from this link with this top and extend to drilling rod and drill bit in this tubing, a commentaries on classics spray apparatus is equipped with at the top of this tubing.
Wherein, this mud current return circuit comprises connection successively: at least one mud return duct that is connected with this commentaries on classics spray apparatus, a scraper, a slurry dispenser, a vibrosieve, a mud conditioning jar, a mud overflow passage that is connected with this mud pit.
Among the present invention, but above-mentioned optimum condition any combination on the basis that meets this area general knowledge namely gets each preferred embodiment of the present invention.
Positive progressive effect of the present invention is: the alternative preventer of well head mud reflux of the present invention and mozzle carry out the mud circulation test to drilling mud loop test system, drilling mud loop test system and preventer are tested synchronously, do not need to install in advance mozzle and preventer and control system thereof in addition yet, thereby reduced the stand-by period of this test macro and tested risk, reduced testing cost.Further, well head mud reflux of the present invention simple in structure, simple installation, the no depth of water requires so do not tested the influence of marine environment.The testing cost of drilling mud loop test of the present invention system is low, the test risk is little, because not needing that mozzle and preventer and control system thereof are installed in advance, thereby is not subjected to the influence of project process.
Description of drawings
Fig. 1 for well system in the prior art at the structural representation that carries out under the shaft mouth operation state.
Fig. 2 is the structural representation of well system in the prior art when carrying out the mud circulation test.
Fig. 3 is the structural representation of well head mud reflux in the preferred embodiment of the present invention.
Fig. 4 is the structural representation of drilling mud reflux cycle test macro in the preferred embodiment of the present invention.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As shown in Figure 3, the well head mud reflux among the present invention comprises the tubing 201 of a hollow, and this tubing 201 comprises the bottom 213 of a link 211 that opens wide and a sealing.The external surface of this tubing 201 is provided with four and hangs horse 216.
In addition, on link 211, also be provided with for changeing spray apparatus (not shown) flange connecting 212.213 base plate 214 and the brackets 215 that are provided with as reinforcing mechanisms in the bottom.Wherein the external surface of a side of bracket 215 and this tubing 201 is affixed, and the opposite side of bracket 215 is then affixed with base plate 214.
As shown in Figure 4, same as the prior art, drilling mud reflux test of the present invention system comprised mud perfusion path and a mud current return circuit.
Wherein, this mud perfusion path comprises connection successively: a mud charge pump 101 that is connected with mud pit 100, a high pressure slurry pump 102, a mud standpipe manifold 103, mud standpipe 104, mud hose 105, top drive 106, and this top is driven 106 below and is provided with one and changes spray apparatus 110, one drives 106 drilling rod 107 and the drill bit (not shown) that drive by this top, and this drilling rod 107 and drill bit pass this commentariess on classics spray apparatus 110 backs to well heads extension in seabed.
This mud current return circuit then comprises connection successively: a mud return duct 111 that is connected with this commentaries on classics spray apparatus 110, a scraper 112, a slurry dispenser 113, a vibrosieve 114, mud conditioning jar 115 and the mud bleed off pipe 116 that is communicated with mud pit.
And unlike the prior art be that this mud perfusion path and mud current return circuit form a mud circulation loop by being set in drilling rod 107 outer well head mud refluxes 200.Wherein, the link 211 of this well head mud reflux 200 and this commentaries on classics spray apparatus 110 are connected by flange.
At test phase, the mud in the mud pit enters the mud current return circuit after the mud in the tubing is changed via preventer and returns via the tubing of mud perfusion path injection well head mud reflux, gets back to mud pit at last.After test finishes, this well head mud reflux is removed the installation mozzle can carry out normal drillng operation.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (8)
1. a well head mud reflux is characterized in that it comprises a tubing, and this tubing comprises that one is used for changeing the link that spray apparatus links to each other, opens wide with one, and the bottom of a sealing, and this bottom is provided with some reinforcing mechanisms.
2. well head mud reflux as claimed in claim 1 is characterized in that, this link is provided with a flange adaptive with this commentaries on classics spray apparatus, and this tubing is connected by this flange with this commentaries on classics spray apparatus.
3. well head mud reflux as claimed in claim 1 is characterized in that, the external surface of this tubing sets firmly some horses that hang.
4. well head mud reflux as claimed in claim 1 is characterized in that, this bottom also is provided with a base plate that extends radially outwardly along this tubing.
5. well head mud reflux as claimed in claim 4 is characterized in that, this reinforcing mechanisms is some brackets, and a side and this tubing of this bracket are affixed, and the opposite side of this bracket and this base plate are affixed.
6. drilling mud loop test system, it comprises mud perfusion path and a mud current return circuit, it is characterized in that this mud perfusion path and this mud current return circuit are communicated with by each described well head mud reflux among the claim 1-5, form a mud circulation loop.
7. drilling mud loop test as claimed in claim 6 system, it is characterized in that, this mud perfusion path comprises and connecting successively: a mud charge pump that is connected with a mud pit, a high pressure slurry pump, a mud standpipe manifold, at least one mud standpipe, at least one mud hose, push up to drive and drive with this top and be connected and extend to drilling rod and drill bit in this tubing from this link, a commentaries on classics spray apparatus is equipped with at the top of this tubing.
8. drilling mud loop test as claimed in claim 7 system, it is characterized in that this mud current return circuit comprises successively and to connect: at least one mud return duct that is connected with this commentaries on classics spray apparatus, a scraper, a slurry dispenser, a vibrosieve, a mud conditioning jar, a mud overflow passage that is connected with this mud pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030631.9A CN103244065B (en) | 2012-02-10 | 2012-02-10 | Wellhead slurry reflux and drilling mud circulation test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030631.9A CN103244065B (en) | 2012-02-10 | 2012-02-10 | Wellhead slurry reflux and drilling mud circulation test macro |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244065A true CN103244065A (en) | 2013-08-14 |
| CN103244065B CN103244065B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210030631.9A Expired - Fee Related CN103244065B (en) | 2012-02-10 | 2012-02-10 | Wellhead slurry reflux and drilling mud circulation test macro |
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| Country | Link |
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| CN (1) | CN103244065B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531076A (en) * | 2013-11-06 | 2014-01-22 | 西南石油大学 | Drilling condition simulation system and workflow thereof |
| CN110043212A (en) * | 2019-05-08 | 2019-07-23 | 中国石油大学(北京) | Assist riser pipe mud extraction device |
| CN115410443A (en) * | 2022-10-31 | 2022-11-29 | 西南石油大学 | Control system for blowout simulation training |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726136A (en) * | 1970-12-17 | 1973-04-10 | Petro Electronics Inc | Drilling-fluid control-monitoring apparatus |
| WO2003023181A1 (en) * | 2001-09-10 | 2003-03-20 | Ocean Riser Systems As | Arrangement and method for regulating bottom hole pressures when drilling deepwater offshore wells |
| CN1465844A (en) * | 2002-06-28 | 2004-01-07 | 河南石油勘探局南阳石油机械厂 | Mud circulation system |
| CN2839551Y (en) * | 2005-07-15 | 2006-11-22 | 中国石化集团江汉石油管理局第四机械厂 | Integrated whole-closed mud returning device |
| CN101082270A (en) * | 2007-07-10 | 2007-12-05 | 中国海洋石油总公司 | Drilling fluid treatment system |
| CN101929331A (en) * | 2009-06-25 | 2010-12-29 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Overall process under-balance drilling pressure compensation system and method |
-
2012
- 2012-02-10 CN CN201210030631.9A patent/CN103244065B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726136A (en) * | 1970-12-17 | 1973-04-10 | Petro Electronics Inc | Drilling-fluid control-monitoring apparatus |
| WO2003023181A1 (en) * | 2001-09-10 | 2003-03-20 | Ocean Riser Systems As | Arrangement and method for regulating bottom hole pressures when drilling deepwater offshore wells |
| CN1465844A (en) * | 2002-06-28 | 2004-01-07 | 河南石油勘探局南阳石油机械厂 | Mud circulation system |
| CN2839551Y (en) * | 2005-07-15 | 2006-11-22 | 中国石化集团江汉石油管理局第四机械厂 | Integrated whole-closed mud returning device |
| CN101082270A (en) * | 2007-07-10 | 2007-12-05 | 中国海洋石油总公司 | Drilling fluid treatment system |
| CN101929331A (en) * | 2009-06-25 | 2010-12-29 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Overall process under-balance drilling pressure compensation system and method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531076A (en) * | 2013-11-06 | 2014-01-22 | 西南石油大学 | Drilling condition simulation system and workflow thereof |
| CN103531076B (en) * | 2013-11-06 | 2015-09-23 | 西南石油大学 | A set of drilling condition simulation system and workflow thereof |
| CN110043212A (en) * | 2019-05-08 | 2019-07-23 | 中国石油大学(北京) | Assist riser pipe mud extraction device |
| CN110043212B (en) * | 2019-05-08 | 2023-10-24 | 中国石油大学(北京) | Auxiliary water-stop conduit mud outlet device |
| CN115410443A (en) * | 2022-10-31 | 2022-11-29 | 西南石油大学 | Control system for blowout simulation training |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103244065B (en) | 2016-01-20 |
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Granted publication date: 20160120 Termination date: 20200210 |