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    • 1. 发明申请
    • TIEBACK CEMENTING PLUG SYSTEM
    • TIEBACK CEMENTING PLUG系统
    • WO2015134830A1
    • 2015-09-11
    • PCT/US2015/019092
    • 2015-03-06
    • WEATHERFORD/LAMB, INC.
    • GASPARD, Gregory GerardFARLEY, Douglas Brian
    • E21B33/16
    • E21B33/143E21B17/00E21B33/12E21B33/16E21B34/06
    • A method for casing a subsea wellbore includes running a tieback casing string into the subsea wellbore using a workstring including first, second, and third wiper plugs. The method further includes: launching a first release plug or tag into the workstring; pumping cement slurry into the workstring, thereby driving the first release plug or tag along the workstring; after pumping the cement slurry, launching a second release plug or tag into the workstring; and pumping chaser fluid into the workstring, thereby driving the release plugs or tags and cement slurry through the workstring. The release plugs or tags engage and release the respective wiper plugs from the workstring. The first wiper plug or release plug ruptures, thereby allowing the cement slurry to flow therethrough. The method further includes: stabbing the tieback casing string into a liner string; and retrieving the workstring, the workstring still including the third wiper plug.
    • 用于套管海底井筒的方法包括使用包括第一,第二和第三刮水器塞的工作系统来运行连接套管柱进入海底井筒。 该方法还包括:将第一释放塞或标签发射到工作绳中; 将水泥浆泵送到工作绳中,从而沿着工作绳驱动第一释放塞或标签; 在泵送水泥浆后,将第二个释放塞或标签推入工作绳; 并将追击流体泵送到工作绳中,从而通过工作绳驱动释放塞或标签和水泥浆。 释放塞子或标签使相应的雨刷塞从工作绳上接合和释放。 第一个雨刷塞或释放塞破裂,从而使水泥泥浆流过。 该方法还包括:将连接套管柱刺入衬管柱中; 并检索工作串,工作台仍然包括第三个雨刷。
    • 4. 发明申请
    • INSERTION OF A PACKOFF INTO A WELLHEAD
    • 将包装插入一个衣柜
    • WO2011128612A2
    • 2011-10-20
    • PCT/GB2011/000402
    • 2011-03-22
    • AKER SUBSEA LIMITEDWILLOUGBY, Daniel Alexander
    • WILLOUGBY, Daniel Alexander
    • E21B33/00E21B33/035E21B33/043E21B33/143E21B34/04
    • Apparatus for the insertion of a pack-off (34) into a recess (51) in a bore of a wellhead body comprises an activating sleeve (36) which has a portion (58) disposed for engagement with the pack-off (34) for the movement of the pack-off into the recess and body portions shaped for location on a datum member (52) within the bore. The activating sleeve (36) includes a plurality of apertures (65) circumferentially spaced about the activating sleeve. A running tool (50) which is adapted to move said activating sleeve into engagement with the packoff carries spring-loaded dogs (72) each disposed in one of the apertures (65). Each of a plurality of releasing pins (71) is positioned such that it enters a respective one of the apertures (65) when the activating sleeve (36) has caused the packoff (34) to be located in said recess (52). The entry of the pins (71) into the apertures causes depression of the dogs out of the apertures and allows the consequent release of the activating sleeve (36) from the running tool (50).
    • 用于将包装(34)插入井口主体的孔中的凹部(51)中的装置包括一个启动套筒(36),其具有设置成用于与包装(34)接合的部分(58) 用于将包装移动到凹部中,并且形成为孔内的基准构件(52)上的位置。 激活套筒(36)包括围绕激活套筒周向间隔开的多个孔(65)。 适于将所述启动套筒移动到与包装物接合的运行工具(50)承载弹簧加载的销钉(72),每个销钉设置在所述孔口之一中。 多个释放销(71)中的每一个被定位成使得当激活套筒(36)已经使包装(34)位于所述凹部(52)中时,它们进入相应的一个孔(65)。 销(71)进入孔口导致将狗从孔中推出,从而允许活动套筒(36)从运行工具(50)释放。
    • 6. 发明申请
    • METHOD AND APPARATUS FOR RUNNING AND CEMENTING PIPE
    • 管道和管道的方法和装置
    • WO1982001211A1
    • 1982-04-15
    • PCT/US1980001312
    • 1980-10-06
    • EXXON PROD RES COGAINES C
    • EXXON PROD RES CO
    • E21B07/18
    • E21B33/14E21B7/18E21B7/20E21B33/143
    • A jet shoe (10) is connected to the lowermost end of a pipe (31) to be placed in a subsea formation. The jet shoe comprises a cylindrical housing (10a) in which is arranged an inner tubular receptacle (11), a check valve (18) permitting downward flow but preventing upward flow through the valve and jet tubes (15) extending from receptacle (11) through the lower end of jet shoe (10). Receptacle (10), valve (18) and tubes (15) are cemented in housing (10a). Tubes (15) contain nozzles (16) for jetting fluid to erode formation ahead of shoe (10) A stinger (27) arranged on the lower end of a smaller diameter pipe (25) extends into and seals in receptacle (11). A closure member (35) on smaller pipe (25) releasably closes off the upper end of larger pipe (31). The smaller pipe (25) and the attached larger pipe (31), together with a permanent guide base (45) connected to the upper end of larger pipe (31), are lowered to the ocean floor. While jetting fluid through smaller pipe (25) and out shoe (10), the formation ahead of the shoe (10) is eroded until larger pipe (31) reaches a predetermined depth. Cement slurry (50) is then pumped downwardly through smaller pipe (25) and through jet shoe (10) to cement larger pipe (31) in the subsea formation. If desired, a pressure measuring means (40, 42) may be provided to determine whether any leaks have occurred in the drill pipe. The invention has particular application in locations where the subsea formations are unstable and in locations where it is advantageous to eliminate running of a temporary guide base in offshore operations.
    • 喷射靴(10)连接到管(31)的最下端以放置在海底地层中。 射流靴包括圆柱形壳体(10a),其中布置有内部管状容器(11),止回阀(18)允许向下流动但阻止向上流动通过阀和从容器(11)延伸的喷射管(15) 通过喷射鞋(10)的下端。 容器(10),阀(18)和管(15)被胶合在壳体(10a)中。 管(15)包含喷嘴(16),用于喷射流体以侵蚀鞋(10)前的形成。布置在较小直径管(25)的下端上的喷管(27)延伸到容器(11)中并在容器(11)中密封)。 较小管(25)上的封闭构件(35)可释放地封闭较大管(31)的上端。 较小的管道(25)和附接的较大管道(31)与连接到较大管道(31)的上端的永久引导基座(45)一起降低到海底。 当通过较小的管道(25)和出口(10)喷射流体时,鞋子(10)之前的地层被侵蚀,直到较大的管道​​(31)达到预定的深度。 然后将水泥浆(50)向下泵送通过较小的管道(25)和穿过射流靴(10)以在海底地层中粘结更大的管道(31)。 如果需要,可以提供压力测量装置(40,42)以确定钻杆中是否发生任何泄漏。 本发明特别适用于海底地层不稳定的地方以及有利于在海上作业中消除临时导向底座的运行的地方。
    • 7. 发明申请
    • METHODS AND APPARATUS FOR FORMING AN OFFSHORE WELL
    • 用于形成离岸井的方法和设备
    • WO2017071709A3
    • 2017-06-15
    • PCT/DK2016000040
    • 2016-10-31
    • MAERSK DRILLING AS
    • KANNEGAARD MICHAELCHAJAI HICHAM
    • E02B17/02E21B19/00E21B33/035E21B33/043E21B33/14
    • E21B33/035E21B33/043E21B33/143
    • A method for forming an offshore well comprises forming a well structure (1) which includes a lower well portion extending below a seabed and an upper well portion (2) extending upwardly between the seabed (18) and a terminating upper end (3) of the well structure, wherein the well structure comprises a plurality of concentrically arranged tubular strings (22) and at least one annulus (48) defined therebetween. The method includes steps for minimising the bending stiffness of the upper well portion. In one example minimising the bending stiffness of the upper well portion may comprise partially filling at least one annulus with cement (52) to a height which: is intermediate the seabed and the terminating upper end of the well structure.., In another example minimising the bending stiffness of the upper well portion may comprise providing a cement disruptor within at least one annulus and locating cement within said at least one annulus to define a cement sheath, wherein the cement disruptor, for example sleeve (122), reduces resistance of at least a portion of the cement sheath to bending of the upper well portion. In a further example minimising the bending stiffness of the upper well portion may comprise locating a flexible material within at least one annulus; and In a further example minimising the bending stiffness of the upper well portion may comprise varying the bending stiffness along at least one of the plurality of tubular strings.
    • 一种形成近海井的方法,包括形成井结构(1),所述井结构包括在海床下方延伸的下井部分和在海床(18)与所述海底(18)的终止上端(3)之间向上延伸的上井部分 井结构,其中井结构包括多个同心布置的管柱(22)和限定在它们之间的至少一个环形空间(48)。 该方法包括用于最小化上部井部分的弯曲刚度的步骤。 在一个示例中,使上部井部分的弯曲刚度最小化可以包括用水泥(52)部分地填充至少一个环形空间至高度,该高度位于海床和井结构的端部上端之间。在另一示例中,最小化 上井部分的弯曲刚度可以包括在至少一个环空内提供水泥干扰器并将水泥定位在所述至少一个环空内以限定水泥外壳,其中水泥干扰器(例如套筒(122))降低 至少一部分水泥护套弯曲上部井部分。 在进一步的示例中,使上部井部分的弯曲刚度最小化可以包括将柔性材料定位在至少一个环形空间内; 并且在进一步的示例中,使上部井部分的弯曲刚度最小化可以包括沿着多个管状柱中的至少一个改变弯曲刚度。
    • 9. 发明申请
    • PARTICULATE DISPENSER
    • 颗粒分配器
    • WO2017007460A1
    • 2017-01-12
    • PCT/US2015/039402
    • 2015-07-07
    • HALLIBURTON ENERGY SERVICES, INC.
    • HENRY, Kevin WayneROBINSON, Courtney Pierre
    • E21B33/13E21B33/14
    • E21B21/062E21B33/14E21B33/143E21B33/16E21B47/122
    • Particulate dispenser can include a housing enclosing a receiving space. The housing having a fluid inlet aperture and a particulate input aperture, and a fluid outlet aperture. A hopper can be disposed above the housing and coupled to feed particulate from the hopper to the particulate input aperture. A wheel disposed within in the receiving space having at least one distribution aperture extending from the top surface to the bottom surface. The apertures being disposed at respective positions so that rotation of the wheel alternately aligns the distribution aperture with the particulate input aperture to feed particulate from the particulate input aperture into the distribution aperture and then aligns the distribution aperture with the fluid input aperture and the fluid output aperture to feed the particulate from the distribution aperture into the fluid flowing through the distribution aperture as the wheel rotates.
    • 颗粒分配器可以包括包围接收空间的壳体。 壳体具有流体入口孔和颗粒输入孔,以及流体出口孔。 料斗可以设置在壳体上方并联接以将颗粒从料斗输送到颗粒输入孔。 设置在容纳空间内的轮具有从顶表面延伸到底表面的至少一个分配孔。 孔被布置在各个位置,使得轮的旋转将分配孔与颗粒输入孔交替地对准,以将颗粒从颗粒输入孔进入分配孔,然后使分配孔与流体输入孔和流体输出 孔,以便当轮转动时,颗粒从分配孔进入流过分配孔的流体。
    • 10. 发明申请
    • SUBSEA WELLBORE CONSTRUCTION METHOD AND APPARATUS
    • SUBSEA井筒施工方法和装置
    • WO2012140445A3
    • 2014-01-09
    • PCT/GB2012050828
    • 2012-04-13
    • IKM CLEANDRILL ASHASLER THOMASHUFTHAMMER HARALD
    • HASLER THOMASHUFTHAMMER HARALD
    • E21B33/14E21B21/08E21B43/10
    • E21B21/08E21B33/143E21B43/101
    • A method and system for constructing a subsea well in a subterranean formation is described. A tubular in a subsea well defines a main wellbore, and a fluid circulation path from the main wellbore to an outlet is formed via the wellbore annulus between the tubular and the subterranean formation. A cement slurry flows from the main wellbore along the wellbore annulus towards the outlet, causing fluid to be displaced from the annulus through the outlet. A controllable subsea choke in fluid communication with the fluid circulation path generates a backpressure in the fluid circulation path using the controllable subsea choke. In a preferred embodiment, the controllable subsea choke is part of a subsea pressure regulation system which also comprises a subsea pump.
    • 描述了用于在地层中构造海底井的方法和系统。 海底井中的管状物定义主井眼,并且经由管和地下地层之间的井筒环形成从主井筒到出口的流体循环路径。 水泥浆从主井筒沿着井眼环流向出口流动,导致流体从环形空间通过出口移位。 与流体循环路径流体连通的可控海底扼流圈使用可控的海底扼流圈在流体循环路径中产生背压。 在优选实施例中,可控海底扼流圈是海底压力调节系统的一部分,海底压力调节系统还包括海底泵。