CN101790620B - 使用防砂衬管的钻进方法 - Google Patents
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
- E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
- E21B43/108—Expandable screens or perforated liners
Abstract
衬管旋转钻头来形成井眼。衬管上设有开口,开口中带有插入件,用以使衬管具有扭矩抵抗力。插入件设有通道,通道内带有防砂件,插入件还具有密封件,这样一来,衬管可以保持压力使其以适当的循环通过钻头。当形成了满足需要的井眼之后,衬管悬挂并固定于已有的注水泥井管,通过多种技术将用于具有防砂件的通道的密封件移走,这样可以在单次行程中完成地层的开采。
Description
技术领域
本发明涉及一不具钻柱的、旋转以钻井的衬管,更具体地,涉及其上设有开口,开口中设有防砂装置的衬管,其中,在钻井操作完成后该开口被去除密封。
背景技术
节省进入井内的行程次数就是节省钻井经营者的钱。已被开发出来的一种这样的节约时间的技术是使钻柱上的滤砂器和衬管一起运动,这样一来,当钻头前进时,衬管也前进。当到达预期位置时,一直延伸到钻头的钻柱从钻头上释放,其中钻头可旋转地安装于衬管上。衬管在钻头转动时不旋转。钻柱从钻头上拆开移走后,可以插入管子整形器以膨胀滤砂器,或者插入隔离封隔器和转线路,这样可以实施砾石充填作业。这项技术已经在US专利7,108,083中公开。钻头可以由钻柱或由缠绕管支撑的井下马达驱动。
钻井过程中,插入衬管的钻柱和滤砂器同时使用,因为需要将加压的钻井泥浆传送到钻头喷嘴以清除钻屑,并冷却钻头。因为滤砂器是一个开放式结构,当不采用衬管内的钻柱钻井时,滤砂器不能用于传送衬管,这样一来,加压的泥浆可以直接传递到钻头,而钻柱以其不先于钻头遇到流体的压力的方式支撑衬管。
在消除钻柱、采用衬管转动钻头,特别是有滤砂器或者一系列槽的衬管的尝试中,所要面对的问题在于该结构抵抗钻井时所产生的扭矩的有限能力,以及如何使该结构成为加压流体的导管,从而使得钻头喷嘴可以被供应以冷却流体以及处理钻屑的手段。另外的考虑是避免使用炸药射孔,因为这样会对灵敏地层造成破坏,射孔枪在爆炸后会被卡住在注入井孔底。为了解决上述问题,本发明提供了一种坚固的衬管结构,该结构可以承受受到的扭矩,驱动钻头,同时还具有向钻头喷嘴传送压力的能力,并且在钻井结束时能够开启带有防砂装置的通道,从而可以在衬管悬挂并密封在已有的、注水泥的井管的情况下开始开采。在阅读了对优选实施例的描述以及附图之后,本发明的这些和其它的技术特征可以更加明显地体现,同时要认识到权利要求决定了本发明的全部保护范围。
发明内容
衬管旋转钻头以钻井。衬管上设有开口,开口中带有插入件,以使衬管具有扭矩抵抗力。插入件设有通道,通道内带有防砂件,插入件还具有密封件,这样一来,衬管可以保持压力使其以适当的循环通过钻头。当形成了满足需要的井孔后,将衬管悬挂并固定于已有的注水泥井管,通过多种技术将用于具有防砂件的通道的密封件移走,这样可以在单次行程中完成地层的开采。
附图说明
图1为底部设有钻头的用于钻井的管的剖视图和其中一个开口中的插入件的详图。
具体实施方式
图1显示了已经固定在井筒12中的套管10。井筒12通过固定在衬管16上的钻头14钻进,钻头14和衬管16以级联旋转的方式连接在一起。在衬管16顶部17附近是本领域熟知的衬管悬挂器18。在钻进井筒12时,悬挂器18和它的卡瓦以及密封件被致动,这样,衬管16被套管10支撑。下放钻柱20将衬管16传送通过套管10,从而开始钻进井筒12。
衬管16设有一系列的孔22,孔22内带有内螺纹以用来固定插入件26。插入件26可以焊接就位,但是采用螺纹连接的方式更为优选,因为这种方式安装更为便宜,并且当需要更换插入件26时更换更为快速。每一个插入件26都有一个贯穿的通道28。通道28内有防砂件30,防砂件优选为与预期的井下流体和环境相容的烧结金属珠。图中还示出针对一个单独的开口设置了密封材料32(但实际上所有的开口22均设有该密封材料),这样,通过下放钻柱20输送的具有一定压力的钻井泥浆可以保持在衬管16中,并且与钻头14连通以允许它钻进。钻头14可以以可拆卸的方式安装在衬管16的底端34,下放钻柱20在其底端可以带有抓紧机构,图示为36。抓紧机构36可以抓取钻头14,钻头14可以是可收缩的设计,这样,在钻井完成后钻头可以通过衬管16收回。替代性地,下放钻柱20也可以包括管子整形器,图示为38,这样一来,在钻井结束后,衬管16可以在同样的行程中膨胀。如果衬管被膨胀,则钻头14不需要具有可收缩的性能,从而能够在衬管膨胀后通过衬管移走。
在井筒12的钻进过程中,下放钻柱20和衬管16旋转以转动钻头14从而形成井眼12。密封材料32最初堵塞通道28,这样,具有一定压力的钻井泥浆可以被传送到钻头14以带走钻屑。钻井操作一直持续,直到到达合适的深度或者当井底的压力太高使得流体有进入地层的风险并且无法清除钻头的钻屑。这时将密封材料32去除。根据选用的密封材料,可以通过多种方式将其去除。密封材料可以被溶解、化学浸蚀或者简单地设计为经过长时间暴露在井中流体和井下环境中后就会消失。也可以采用在井中施加的例如加热之类的刺激手段来去除密封材料。不管是部分去除密封材料32还是全部去除密封材料32,都允许开采产物通过防砂件30进入衬管16。井中流体可以通过代替下放钻柱20的生产套管和封隔器到达地表,或者替代性地,开采产物可以通过下放钻柱20本身被开采,这省去了移除下放钻柱20以及用生产套管和隔离器(未示出)代替钻柱的两次行程。如果要进行衬管16的扩张,则这种扩张可以在密封材料32去除之前或之后进行,但是最好在使开采产物开始向地面移动之前进行。如果钻头14要进行收缩,则该收缩应该在开始开采前完成。衬管16在开始开采之前可以安放在底部上,或者其底端34可以通过其他的装置阻塞而不允许流体流动。
本领域技术人员可以意识到衬管16具有足够的抗扭强度来操作钻头14,并且具有在钻井过程中选择性地保持压力的性能,这样在钻井过程中可以将流体压迫出钻头喷嘴。在这种情况下,不需要在衬管上射孔以获得开采通道。密封装置32设置成在钻井结束时被消除,以在通道28中提供开采通道。衬管16的膨胀可以是单程的,因为衬管16不管膨胀与否最终都会抓住并取回钻头14。开口22可以在壁上具有螺纹或者提供有焊接部。如果要打算膨胀的话,内壁40应当优选为光滑的,没有内部突出物。可以采用各种公知的管子整形器和膨胀技术。开口22的数量、布置和尺寸可以根据预期的开采速度来确定。
上述描述说明优选实施例,本领域熟练的技术人员在不背离本发明的情况下可能做出很多修改,本发明的保护范围由权利要求的文字和相当的范围决定。
Claims (18)
1.一种从井筒进行开采的方法,包括:
将衬管的至少一部分连接到钻头上,在钻进井筒时使二者在井筒中级联旋转;
通过所述衬管使加压钻井泥浆循环至所述钻头,以清除钻屑;
在所述衬管上提供至少一个选择性打开的开口,所述开口进一步包括防砂件;
在所述开口封闭的情况下钻进井筒;
在钻进井筒操作完成后打开所述开口以通过所述防砂件进行井中流体的开采;以及
在所述钻进井筒操作完成后,穿过所述衬管收回所述钻头。
2.如权利要求1所述的方法,包括:
采用可去除的材料封闭所述开口。
3.如权利要求1所述的方法,包括:
使用烧结金属珠来作为所述防砂件。
4.如权利要求1所述的方法,包括:
在与钻进井筒操作相同的行程中膨胀所述衬管。
5.如权利要求4所述的方法,包括:
穿过膨胀的所述衬管收回所述钻头。
6.如权利要求1所述的方法,包括:
在所述钻进井筒操作完成后,将所述衬管固定在已经存在的井管上。
7.如权利要求1所述的方法,包括:
采用可收缩的钻头以便于通过所述衬管移除钻头。
8.如权利要求1所述的方法,包括:
在所述衬管的壁上安装插入件,其中所述插入件带有贯穿的通道;以及
将所述防砂件放置在所述通道中。
9.如权利要求8所述的方法,包括:
定位所述插入件,使其不会突出至所述衬管的内壁之外;以及
在所述钻进井筒操作结束后膨胀所述衬管。
10.如权利要求8所述的方法,包括:
在所述通道中放置可去除的材料;
在所述钻进井筒操作过程中使所述材料留在原位;以及
在所述钻进井筒操作完成后去除所述材料。
11.如权利要求10所述的方法,包括:
通过暴露于井下环境或暴露于在井底所施加的刺激手段来去除所述材料。
12.如权利要求6所述的方法,包括:
通过下放钻柱来下放所述衬管;以及
通过所述下放钻柱来开采井中流体。
13.如权利要求6所述的方法,包括:
通过下放钻柱来下放所述衬管;
去除所述下放钻柱,下放生产套管以及封隔器;以及
通过所述生产套管进行开采。
14.如权利要求4所述的方法,包括:
通过下放钻柱来下放所述衬管;
在所述下放钻柱上安装管子整形器;以及
通过所述管子整形器来膨胀所述衬管。
15.如权利要求14所述的方法,包括:
在膨胀所述衬管后用所述下放钻柱抓住所述钻头;以及
穿过所述衬管收回所述钻头。
16.如权利要求9所述的方法,包括:
在所述插入件上设置螺纹;以及
通过螺纹将所述插入件安装在所述衬管上。
17.如权利要求2所述的方法,包括:
采用烧结金属珠来用作所述防砂件。
18.如权利要求17所述的方法,包括:
在所述开口中放置可去除的材料;
在所述钻进井筒过程中使所述材料留在原位;
在所述钻进井筒操作完成后去除所述材料;以及
通过暴露于井下环境或暴露于在井底施加的刺激手段来去除所述材料。
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US11/845,893 | 2007-08-28 | ||
US11/845,893 US7708076B2 (en) | 2007-08-28 | 2007-08-28 | Method of using a drill in sand control liner |
PCT/US2008/073540 WO2009032517A1 (en) | 2007-08-28 | 2008-08-19 | Drill in sand control liner |
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CN101790620A CN101790620A (zh) | 2010-07-28 |
CN101790620B true CN101790620B (zh) | 2014-03-26 |
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US (1) | US7708076B2 (zh) |
EP (1) | EP2191101B1 (zh) |
CN (1) | CN101790620B (zh) |
AU (1) | AU2008296677B2 (zh) |
BR (1) | BRPI0815835B1 (zh) |
CA (1) | CA2696917C (zh) |
EA (1) | EA017990B1 (zh) |
EG (1) | EG25334A (zh) |
WO (1) | WO2009032517A1 (zh) |
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- 2008-08-19 AU AU2008296677A patent/AU2008296677B2/en active Active
- 2008-08-19 WO PCT/US2008/073540 patent/WO2009032517A1/en active Application Filing
- 2008-08-19 CN CN200880104563.8A patent/CN101790620B/zh not_active Expired - Fee Related
- 2008-08-19 BR BRPI0815835-5A patent/BRPI0815835B1/pt active IP Right Grant
- 2008-08-19 EA EA201000363A patent/EA017990B1/ru not_active IP Right Cessation
- 2008-08-19 EP EP08798141.1A patent/EP2191101B1/en not_active Not-in-force
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Also Published As
Publication number | Publication date |
---|---|
BRPI0815835B1 (pt) | 2018-06-05 |
US20090057014A1 (en) | 2009-03-05 |
EA201000363A1 (ru) | 2011-02-28 |
CA2696917A1 (en) | 2009-03-12 |
EP2191101B1 (en) | 2015-03-11 |
AU2008296677B2 (en) | 2013-09-19 |
CA2696917C (en) | 2013-07-23 |
WO2009032517A1 (en) | 2009-03-12 |
CN101790620A (zh) | 2010-07-28 |
AU2008296677A1 (en) | 2009-03-12 |
US7708076B2 (en) | 2010-05-04 |
EG25334A (en) | 2011-12-14 |
EA017990B1 (ru) | 2013-04-30 |
EP2191101A1 (en) | 2010-06-02 |
EP2191101A4 (en) | 2012-01-11 |
BRPI0815835A2 (pt) | 2015-03-03 |
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