CN103443390A - 用于线圈管道/钢丝缆绳喷射的立管 - Google Patents
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Abstract
本发明涉及一种包括自支撑立管(SSR)的系统,所述自支撑立管与井连接以便与海底下方深处的化石油气储层流体连通。所述自支撑立管由多个接头构成,所述接头包括规则接头和对所述自支撑立管进行限位并选择用于使所述井用SSR恰好位于特定位置的特制接头。本发明的特有方面进一步涉及一种承受剧烈船舶运动的小型船只,所述小型船只使线圈管道/钢丝缆绳系统能够安装在所述船只的稳定器系统上。连接所述船只与所述自支撑立管的立管延伸部优选具有专为船只升沉而设置的伸缩接头/部。
Description
技术领域
本发明涉及自支撑立管(Self Supporting Riser,SSR)到承受纵摇横摇等剧烈船舶运动的船只的连接。小型船只采用了特有稳定系统,用于支撑线圈管道/钢丝缆绳喷射器并支撑该船只上的设备。
背景技术
对于深井下干预,按惯例,从墨西哥港湾和其他近海地域下面的化石油气储层中回收碳氢化合物运用了多种设计的超大型船只,这些超大型船只对进行井中干预的设备进行支撑。这些船只耗费了成千上万美元,而且进行线圈管道/钢丝缆绳维修所花的日利率通常不合理。
发明内容
本发明涉及一种包括自支撑立管(SSR)的系统,所述自支撑立管与井连接以便与海底下方深处的化石油气储层(fossil hydrocarbonreservoirs)流体连通。所述自支撑立管由多个接头构成,所述接头包括规则接头和对所述自支撑立管进行限位并选择用于使所述井用自支撑立管恰好位于特定位置的特制接头。本发明的特有方面是进一步涉及承受剧烈船舶运动的小型船只,所述小型船只使线圈管道/钢丝缆绳系统能够安装在所述船只的稳定器系统上。
附图说明
图1是与井连接的、用于从海底下方深处的化石油气储层中开采碳氢化合物的自支撑立管(SSR)的示意图,和承受剧烈升沉、纵摇横摇的并通过自支撑立管被装配用于井下干预(downhole intervention)的小型船只的示意图。
图2是向自支撑立管中射入线圈管道/钢丝缆绳的干预系统中用到的稳定器系统的另一实施例的示意图。
图3是立管的伸缩部在接近船只中点处将自支撑立管连接至船只的细节的示意图。
图4是立管的伸缩部在船只升沉的向上位置处将自支撑立管连接至船只的细节的示意图。
图5是立管的伸缩部在船只升沉的向下位置处将自支撑立管连接至船只的细节的示意图。
具体实施方式
如参照图1,参阅序列号12/714,919以及其中的附图进行更详细的说明,新颖的立管船只接口系统(RVI)60有利于运用自支撑立管进行井下干预和运用相对较小的船只通过自支撑立管10进行维修。自支撑立管的性质是它对外部施加力的大小和变化相对敏感。小型船只的性质是他们在波浪作用下的运动比大型船只更剧烈,基本上也比平台或浮式采油设施的运动更剧烈得多。因此,自支撑立管与小型船只之间的连接与先前技术相比需要更大的运动范围和更小的力的变化。线圈管道喷射器必须由船只支撑,所设置的管道的重量通常悬挂在喷射器上。
参见图1,带有卷轴59和吊车46的干预船只35具有安装在立管船只接口(RVI)系统60(未示出)上的线圈管道喷射器120。所需井下干预工具已连接到线圈管道上并且做好了操作的准备。以上设备及其独特的安装方式提供了新颖的弧形管道61,该弧形管道61在本发明中用于延长管道63的疲劳寿命。(依然参见序列号12/714,919中的图14和14A)。这样就使得自支撑立管可以固定在地面上,而卷轴可随船只的甲板移动。如序列号12/714,919所述,立管延伸部64具有在意外升沉时用作应急部件的伸缩接头/部65。
图2图示了自支撑立管、船只35和伸缩接头/部65之间的立管延伸部64、和纵摇横摇稳定框架68的组合以便将自支撑立管连接到承受剧烈船舶运动的船只。运用这种组合的方法可使上述系统在不击打到立管船只接口系统结构的升沉气缸的条件下运行。带有伸缩设备65的立管延伸部通过连接器92与自支撑立管的顶部接合并且悬挂在纵摇横摇稳定框架68上,该纵摇横摇稳定框架68反过来又由升沉平台66支撑,该升沉平台66在本实施例中可连接到船只35的甲板33上。框架68和立管延伸部64之间的连接点优选接近船只的运动中心并优选位于船只35的月池中。
图3图示了中间升沉位置。立管延伸部64的伸缩功能在船只升沉时可由伸缩部65伸出和缩回。船只相对于自支撑立管的可允许升沉范围与伸缩管的可允许运动长度一样大。可在伸缩接头65中安装止动片以限制最小和/或最大延伸量。通过在伸缩部进行通风,防止了静液锁闭,从而当长度和内部容量改变时,使流体能够流入和流出伸缩部。可通过通向海水的风门(port)来实现通风,或者通过通向水或其他流体供应源的缆绳(line)55来实现通风,可对该流体进行过滤或者处理或组成,以便减少腐蚀,避免出现碎片和污染并增强润滑。显而易见的是,可通过缆绳56增加或减少连接点之下的有效重量以调整腔室69内流体的压力,通过使伸缩接头/部套上或推开自支撑立管的方式调整,当流体流入和流出缆绳56时使伸缩部伸出和缩回。腔室69在结构上与液压缸的活塞杆端相似。图4图示了向下升沉;图5图示了向上升沉。
伸缩接头上的摩擦可以通过如下方法来减小,比如用润滑液填满空间、固定住伸缩部的运动部件之间的轴承比如珠子、利用衬垫材料如超高分子密度的聚亚安酯,或者一些相似方法的结合。
立管延伸部的垂直度由立管延伸部与纵摇横摇稳定框架的连接点下面的重量、连接点下面的硬度、以及支撑纵摇横摇稳定框架的液压缸的主动控制三者的任意组合来辅助。由于由连接点下面的重量导致的扶正力矩和该重量乘以重心与连接点之间的距离的结果呈比例,该表观重量可通过运用缆绳56施加压力来增加。立管延伸部的硬度,结合该延伸部的下端与自支撑立管的连接,使立管的硬度和浮力模块的扶正力矩能够抵消由支撑在连接点上的设备的重量引起的任何倾覆力矩。浮力模块的扶正力矩与浮力、倾斜角度、以及浮力中心和在浮力作用下能够使立管弯曲的有效“铰链点”之间的距离呈正比。
如序列号12/714,919进一步所述,阀门组件可用于阻止纵摇横摇稳定框架所用到的支撑气缸之间的流体交换,从而将立管延伸部组件及其载荷锁在所需位置,从而使立管延伸部组件随着船只纵摇和/或横摇。当所述延伸部不与自支撑立管连接时,锁住组件可以是有利的。
如序列号12/714,919所述,纵摇横摇稳定框架以在立管延伸部周围均衡地施加等量起升力的方式来对立管延伸部进行支撑,无论船只的纵摇横摇角度如何。又如序列号12/714,919所述,对垂直度的主动控制可通过调整等量分布在立管延伸部周围的起升力。这些气缸上可载有大量物体,但施加一个相对较小的力也可改变力平衡,以便补偿重心偏移或所支撑组件上的外部水平力。所述的液压缸设置可控制相对设置的液压缸中的相对流体压力,以便平衡外力,比如重心偏移。与立管延伸部的倾斜呈比例的反馈信号可用于主动地控制力平衡,从而保持立管延伸部的垂直度。
显而易见的是,通过操纵喷射器放出或拉回一段长度与伸缩接头伸出或缩回长度相等的管道,可以避免地面与任何悬挂在自支撑立管上的管道之间的相对运动,这还可以通过反馈信号自动进行,该反馈信号是通过感测伸缩接头的两个元件之间的相对位置获取的。
最大纵摇和横摇角度受限于支撑液压缸的运动范围以及与月池壁之间的潜在摩擦。更显而易见的是,伸缩接头的外构件既可是两个构件中大的一个也可是小的一个,伸缩接头既可是立管延伸部的一部分也可是自支撑立管的一部分。伸缩接头可包括用于可通过ROV也可通过远程操作的门闩将伸缩接头锁在最大与最小延伸部之间任一位置的设备。
安装在立管延伸部上面的设备相对于船只的运动中心保持固定的高度,而纵摇和横摇使船只相对于该设备倾斜。保持重心尽可能低,同时在船只和连接在立管延伸部上的设备的外围之间留出间隙。这个间隙和月池的大小决定了在不会引起碰撞或其他干扰的情况下可以允许的船只的最大纵摇横摇。本实施例的优点在于其保持了所支撑设备的重心较低,从而减小了由在作用在该设备上的力所引起的倾覆力矩。
更显而易见的是,如果伸缩接头的一个移动部分与自支撑立管连接而另一个移动部分与立管延伸部连接,且没有设置下止动片的话,自支撑立管与立管延伸部之间的液压连接器就不是必须的。然后,船只可以通过构建两半伸缩接头来与自支撑立管连接。在本实施例中,如果船只被迫远离锚地使得自支撑立管的顶部下降超过伸缩接头的最大行程,那么伸缩接头便可以自由脱离,从而将船只从自支撑立管释放。
Claims (27)
1.一种承受升沉、纵摇横摇等剧烈船舶运动的船只的稳定器系统,所述稳定器系统包括:
适用于与所述船只连接的升沉平台;
纵摇横摇框架;
两个或更多与所述框架连接的纵摇横摇补偿气缸,各个所述气缸的各端都具有柔性联接器,其中一个联接器与所述框架连接,位于所述气缸的另一端的联接器与所述平台连接。
2.根据权利要求1所述的稳定器系统,其中,各个纵摇横摇补偿气缸与所述框架连接。
3.一种用于根据权利要求2所述的稳定器系统的所述纵摇横摇补偿气缸的液压回路,所述液压回路包括:
位于所述回路中的水泵,所述水泵用于向由所述气缸的承重室所共用的固定量的密闭流体中添加固定量的流体;
保持所述气缸的所述承重室之间的所述固定量的流体的装置,其中,当一个或多个所述承重室中的压力增大时,流体流入气缸的其他承重室。
4.一种承受升沉、纵摇横摇等剧烈船舶运动的、并具有月池的小型海船,所述小型海船包括:
与所述船只连接的稳定器系统,所述稳定器系统包括:
与将所述平台置于所述月池之上的所述船只连接的平台;
纵摇横摇稳定框架;
两个或多个与所述框架连接的纵摇横摇补偿气缸,各个所述气缸的各端都具有柔性联接器,其中一个联接器与所述框架连接,位于气缸另一端的联接器与所述平台连接。
5.根据权利要求4所述的小型海船,其中,所述纵摇横摇补偿气缸的所述承重室与所述框架连接。
6.根据权利要求4所述的小型海船,其中,所述纵摇横摇框架稳固在所述月池中。
7.一种承受升沉、纵摇和横摇等剧烈船舶运动的、并具有月池的小型海船,所述小型海船包括:
立管船只接口系统,所述立管船只接口系统包括:
与位于所述月池之上的所述船只连接的稳定器系统;
与所述稳定器系统连接的立管延伸部,所述立管延伸部适用于与自支撑立管连接。
8.一种承受升沉、纵摇横摇等剧烈船舶运动的、并具有延伸超过甲板的门廊的小型海船,所述小型海船包括:
与所述船只连接的稳定器系统,所述稳定器系统包括:
纵摇横摇稳定框架;
两个或更多与所述框架连接的纵摇横摇补偿气缸,各个气缸在所述气缸的各端都有柔性联接器,其中一个联接器与所述框架连接,气缸另一端的联接器与所述平台连接。
9.根据权利要求4所述的小型海船,所述小型海船进一步包括:
设置在所述纵摇横摇框架上的喷射器。
10.根据权利要求9所述的小型海船,其中,所述喷射器是线圈管道喷射器。
11.根据权利要求10所述的小型海船,所述小型海船进一步包括:
位于所述工作表面附近的线圈管道卷轴。
12.根据权利要求11所述的小型海船,所述小型海船进一步包括:
固定于所述纵摇横摇框架上的立管延伸部,所述立管延伸部与所述喷射器齐平,通过所述喷射器,由所述喷射器射入的线圈管道穿过所述立管延伸部。
13.一种承受升沉、纵摇横摇等剧烈船舶运动的、并具有在无屏障水域上的工作表面的小型海船,所述小型海船包括:
与所述无屏障水域上的所述船只连接的稳定器系统,所述稳定器系统包括纵摇横摇框架;
与所述稳定器系统连接的立管延伸部,所述立管延伸部与自支撑立管连接。
14.根据权利要求13所述的小型海船,所述小型海船进一步包括:
设置在所述纵摇横摇框架上的构架,所述构架用于保持住喷射器。
15.根据权利要求14所述的小型海船,其中,所述喷射器是线圈管道喷射器。
16.根据权利要求15所述的小型海船,所述小型海船进一步包括:
位于所述月池附近的线圈管道卷轴。
17.根据权利要求16所述的小型海船,所述小型海船进一步包括:
矫直机,所述矫直机位于所述卷轴附近,用于将所述卷轴上的线圈管道的半径变为弧形以便进入所述线圈管道喷射器。
18.根据权利要求17所述的小型海船,所述小型海船进一步包括:
矫直机,所述矫直机位于所述线圈管道喷射器的顶端附近,用于改变所述弧形中的线圈管道的半径以便所述线圈管道进入所述立管延伸部。
19.一种用于使线圈管道进入位于海底的井中的干预方法,其中,自支撑立管(SSR)与所述井的海底基础设施和根据权利要求18所述的船只连接,所述干预方法包括:
操作所述线圈管道喷射器,使线圈管道进入所述井中。
20.一种干预方法,所述干预方法包括:
使线圈管道通过自支撑立管进入海底的井中,所述自支撑立管通过位于承受升沉、纵摇横摇等剧烈船舶运动的小型海船上的线圈管道喷射器与所述井口连接。
21.根据权利要求20所述的干预方法,其中,所述线圈管道通过所述线圈管道喷射器从卷轴脱去,从而在所述卷轴和所述线圈管道喷射器之间形成一道弧形。
22.根据权利要求20所述的干预方法,其中,当所述管道被从所述卷轴脱去而形成所述弧形时,对所述线圈管道进行矫直,所述线圈管道通过所述喷射器进行矫直以便通过所述自支撑立管。
23.根据权利要求20所述的干预方法,其中,所述船只的升沉是通过将所述船只连接到所述自支撑立管的所述立管延伸部中的伸缩接头/部来完成的。
24.一种承受升沉、纵摇横摇等剧烈船舶运动的、并具有月池的小型海船,所述小型海船包括:
与位于所述月池之上的所述船只连接的稳定器系统,所述稳定器系统包括:与所述船只连接的平台;
纵摇横摇稳定框架;
两个或更多与所述框架连接的纵摇横摇补偿气缸,各个气缸在所述气缸的各端具有柔性联接器,一个联接器与所述框架连接,在气缸另一端的联接器与所述平台连接;
与所述稳定器系统连接的立管延伸部,所述立管延伸部包括伸缩接头并适用于与自支撑立管连接。
25.根据权利要求24所述的承受升沉、纵摇横摇等剧烈船舶运动的、并具有月池的小型海船,所述小型海船进一步包括:
位于所述纵摇横摇稳定框架上的线圈管道喷射器。
26.根据权利要求24所述的小型海船,其中,所述伸缩接头具有腔室,在所述腔室中,当所述船只升沉时所述立管延伸部能够伸出和缩回。
27.根据权利要求26所述的小型海船,所述小型海船进一步包括连接至所述腔室的缆绳,其中,所述腔室内的压力可增大或减小以便套上或推开所述自支撑立管。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US12/911,363 | 2010-10-25 | ||
US12/911,363 US20110209651A1 (en) | 2010-03-01 | 2010-10-25 | Riser for Coil Tubing/Wire Line Injection |
PCT/US2011/057628 WO2012061111A1 (en) | 2010-10-25 | 2011-10-25 | Riser for coil tubing/wire line injection |
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CN103443390A true CN103443390A (zh) | 2013-12-11 |
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CN2011800626594A Pending CN103443390A (zh) | 2010-10-25 | 2011-10-25 | 用于线圈管道/钢丝缆绳喷射的立管 |
Country Status (11)
Country | Link |
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US (2) | US20110209651A1 (zh) |
EP (1) | EP2633151A1 (zh) |
CN (1) | CN103443390A (zh) |
AP (1) | AP2013006878A0 (zh) |
AU (1) | AU2011323775A1 (zh) |
CA (1) | CA2815795A1 (zh) |
EA (1) | EA201390569A1 (zh) |
MX (1) | MX2013004677A (zh) |
NZ (1) | NZ609895A (zh) |
WO (1) | WO2012061111A1 (zh) |
ZA (1) | ZA201303046B (zh) |
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Also Published As
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US20140048276A1 (en) | 2014-02-20 |
NZ609895A (en) | 2015-10-30 |
ZA201303046B (en) | 2014-07-30 |
US20110209651A1 (en) | 2011-09-01 |
EP2633151A1 (en) | 2013-09-04 |
AP2013006878A0 (en) | 2013-05-31 |
CA2815795A1 (en) | 2012-05-10 |
WO2012061111A1 (en) | 2012-05-10 |
MX2013004677A (es) | 2013-12-02 |
AU2011323775A1 (en) | 2013-05-23 |
EA201390569A1 (ru) | 2013-10-30 |
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