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公开(公告)号：US08899881B2
公开(公告)日：2014-12-02
申请号：US13288426
申请日：2011-11-03
CPC分类号： B63B21/50 , B63B1/107 , B63B35/4413 , B63B2001/128
摘要： An offshore structure comprises a hull having a longitudinal axis and including a first column and a second column moveably coupled to the first column. Each column has a longitudinal axis, a first end, and a second end opposite the first end. In addition, the offshore structure comprises an anchor coupled to the second end of the second column and configured to secure the hull to the sea floor. The first column includes a variable ballast chamber and a first buoyant chamber positioned between the variable ballast chamber and the first end of the first column. The first buoyant chamber is filled with a gas and sealed from the surrounding environment. The second column includes a variable ballast chamber. Further, the offshore structure comprises a topside mounted to the hull.
摘要翻译： 海上结构包括具有纵向轴线并包括可移动地联接到第一列的第一柱和第二柱的船体。 每列具有纵向轴线，第一端部和与第一端部相对的第二端部。 此外，海上结构包括锚固件，其联接到第二塔的第二端并且构造成将船体固定到海底。 第一列包括可变镇流器室和位于可变压载室与第一列的第一端之间的第一浮力室。 第一个浮力室充满了气体，并与周围环境密封。 第二列包括可变镇流器室。 此外，海上结构包括安装在船体上的顶面。
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公开(公告)号：US08573891B2
公开(公告)日：2013-11-05
申请号：US13252914
申请日：2011-10-04
CPC分类号： B63B21/50 , B63B9/065 , B63B13/00 , B63B35/4406 , B63B43/06 , B63B2009/067 , B63B2021/505
摘要： An offshore structure comprises a base configured to be secured to the sea floor. In addition, the offshore structure comprises an elongate stem having a longitudinal axis, a first end distal the base and a second end pivotally coupled to the base. Further, the offshore structure comprises an upper module coupled to the first end of the stem. The upper module includes a variable ballast chamber. Still further, the offshore structure comprises a first ballast control conduit in fluid communication with the variable ballast chamber of the upper module. The first ballast control conduit is configured to supply a gas to the variable ballast chamber of the upper module and vent the gas from the variable ballast chamber of the upper module. Moreover, the offshore structure comprises a deck mounted to the upper module.
摘要翻译： 海上结构包括构造成固定到海底的基座。 此外，海上结构包括细长的杆，其具有纵向轴线，远离基部的第一端和枢转地联接到基座的第二端。 此外，海上结构包括联接到杆的第一端的上部模块。 上模块包括可变镇流器室。 此外，海上结构包括与上模块的可变镇流器腔流体连通的第一镇流器控制管道。 第一镇流器控制导管构造成将气体供应到上模块的可变镇流器室，并从上模块的可变镇流器室排出气体。 此外，海上结构包括安装到上模块的甲板。
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公开(公告)号：US08322460B2
公开(公告)日：2012-12-04
申请号：US12131598
申请日：2008-06-02
CPC分类号： E21B21/001 , E21B21/08
摘要： Systems and methods for lifting drilling fluid from a well bore in a subsea formation are disclosed. Some system embodiments include a drill string suspended within a drilling riser to form the well bore, and a drilling fluid source for supplying drilling fluid through the drill string during drilling. A diverter is coupled between the drilling riser and a return line, while a power riser coupled to the return line at an interface. A lift fluid source supplies lift fluid through the power riser into the return line. The lift fluid is intermittently injected from the power riser through the interface into the return line to form one or more slugs of lift fluid positioned between slugs of drilling fluid, such that the combined density of lift fluid and drilling fluid in the return line is less than the density of the drilling fluid alone.
摘要翻译： 公开了用于从海底地层中的井眼提升钻井液的系统和方法。 一些系统实施例包括悬挂在钻井立管中以形成井眼的钻柱，以及用于在钻井期间通过钻柱提供钻井液的钻井液源。 分流器连接在钻井立管和返回管路之间，而功率提升器在界面处耦合到返回管线。 提升流体源将提升流体通过电力提升管提供到回流管线中。 提升液体从供电立管通过界面间歇地注入返回管线，以形成一个或多个位于钻井液的lug塞之间的提升流体段，使得回流管路中的提升液和钻井液的组合密度较小 比单独钻井液的密度要高。
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公开(公告)号：US20120285698A1
公开(公告)日：2012-11-15
申请号：US13555407
申请日：2012-07-23
IPC分类号： E21B33/035
CPC分类号： E21B21/001 , E21B21/08
摘要： Systems and methods for lifting drilling fluid from a well bore in a subsea formation are disclosed. Some system embodiments include a drill string suspended within a drilling riser to form the well bore, and a drilling fluid source for supplying drilling fluid through the drill string during drilling. A diverter is coupled between the drilling riser and a return line, while a power riser coupled to the return line at an interface. A lift fluid source supplies lift fluid through the power riser into the return line. The lift fluid is intermittently injected from the power riser through the interface into the return line to form one or more slugs of lift fluid positioned between slugs of drilling fluid, such that the combined density of lift fluid and drilling fluid in the return line is less than the density of the drilling fluid alone.
摘要翻译： 公开了用于从海底地层中的井眼提升钻井液的系统和方法。 一些系统实施例包括悬挂在钻井立管中以形成井眼的钻柱，以及用于在钻井期间通过钻柱提供钻井液的钻井液源。 分流器连接在钻井立管和返回管路之间，而功率提升器在界面处耦合到返回管线。 提升流体源将提升流体通过电力提升管提供到回流管线中。 提升液体从供电立管通过界面间歇地注入返回管线，以形成一个或多个位于钻井液的lug塞之间的提升流体段，使得回流管路中的提升液和钻井液的组合密度较小 比单独钻井液的密度要高。
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公开(公告)号：US20120082514A1
公开(公告)日：2012-04-05
申请号：US13252914
申请日：2011-10-04
CPC分类号： B63B21/50 , B63B9/065 , B63B13/00 , B63B35/4406 , B63B43/06 , B63B2009/067 , B63B2021/505
摘要： An offshore structure comprises a base configured to be secured to the sea floor. In addition, the offshore structure comprises an elongate stem having a longitudinal axis, a first end distal the base and a second end pivotally coupled to the base. Further, the offshore structure comprises an upper module coupled to the first end of the stem. The upper module includes a variable ballast chamber. Still further, the offshore structure comprises a first ballast control conduit in fluid communication with the variable ballast chamber of the upper module. The first ballast control conduit is configured to supply a gas to the variable ballast chamber of the upper module and vent the gas from the variable ballast chamber of the upper module. Moreover, the offshore structure comprises a deck mounted to the upper module.
摘要翻译： 海上结构包括构造成固定到海底的基座。 此外，海上结构包括细长的杆，其具有纵向轴线，远离基部的第一端和枢转地联接到基座的第二端。 此外，海上结构包括联接到杆的第一端的上部模块。 上模块包括可变镇流器室。 此外，海上结构包括与上模块的可变镇流器腔流体连通的第一镇流器控制管道。 第一镇流器控制导管构造成将气体供应到上模块的可变镇流器室，并从上模块的可变镇流器室排出气体。 此外，海上结构包括安装到上模块的甲板。
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公开(公告)号：US08122965B2
公开(公告)日：2012-02-28
申请号：US11754851
申请日：2007-05-29
IPC分类号： E21B43/01
CPC分类号： E21B43/00 , B63B35/003 , B63B35/4413 , B63B2003/147
摘要： Methods for developing an offshore field comprising deploying a lead drilling and production vessel to a offshore field to drill and complete at least one well. Production from the at least one well is initiated and evaluated. A secondary production vessel is selected based upon the evaluated production and is deployed to the offshore field to replace the lead drilling and production vessel and support production of the at least one well.
摘要翻译： 开发海上油田的方法，包括将钻井和生产船舶部署到海上油田以钻取和完成至少一个油井。 开始和评估来自至少一个井的生产。 基于评估的生产选择次生产船，并且部署到海上油田以替代主钻井和生产船并支持至少一井的生产。
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公开(公告)号：US06299383B1
公开(公告)日：2001-10-09
申请号：US09333060
申请日：1999-06-14
IPC分类号： E02D2500
CPC分类号： B63B35/003 , B63B1/107 , B63B9/065 , B63B35/44 , B63B2009/067
摘要： An apparatus and method for the installation of a deck on an offshore substructure. The invention is particularly useful with a floating substructure. Two independent pontoons each have two columns spaced apart from each other that extend upwardly from the pontoons. On each pontoon, a support beam attached to the columns spans the space between the columns. In another embodiment, there is no support beam across the space between the columns. Each pontoon is provided with ballast tanks that allow the pontoons to be selectively ballasted or de-ballasted to control pontoon depth for receiving a deck or installing a deck on an offshore substructure. The pontoons may be ballasted down during transit of the deck such that the main body portion of the pontoons is below significant wave action and the columns present a relatively small water plane area. The pontoons allow the deck to be placed directly above the offshore substructure. For a floating substructure, the pontoons are ballasted while the floating substructure is simultaneously de-ballasted to transfer the deck to the floating substructure.
摘要翻译： 一种用于在海上子结构上安装甲板的装置和方法。 本发明对于浮动子结构特别有用。 两个独立的浮筒各自具有彼此间隔开的两列，从浮体向上延伸。 在每个浮筒上，连接到柱的支撑梁横跨柱之间的空间。 在另一个实施例中，在柱之间的空间上不存在支撑梁。 每个浮筒都设有压载舱，允许浮船被选择性地压载或卸载，以控制浮桥深度用于接收甲板或在海底子结构上安装甲板。 在甲板运输过程中，浮船可能被压载，使得浮船的主体部分低于显着的波浪作用，并且柱呈现相对较小的水平面积。 浮桥允许甲板直接放置在离岸子结构的正上方。 对于浮动子结构，浮筒被压载，而浮动底座同时被压载以将甲板转移到浮动底座。
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公开(公告)号：US06206614B1
公开(公告)日：2001-03-27
申请号：US09067060
申请日：1998-04-27
IPC分类号： B63B3544
CPC分类号： B63B35/4413 , B63B1/107 , B63B2001/128 , B63B2039/067 , E21B17/012
摘要： A floating offshore drilling/producing structure. The structure is formed from a plurality of closely spaced vertically oriented buoyant columns on which one or more modules or decks may be placed to support process equipment, a drilling rig, utilities, and accommodations for personnel. The columns are held in the spaced relationship by a plurality of horizontal plates spaced along the length of the columns and vertical plates located near the bottom of the columns and near the top of the columns. Drilling and/or producing is accomplished through risers located approximately in the center of the structure. The structure includes fixed ballast, an oil storage area, and voids and variable ballast for offsetting the lighter weight of the stored oil. The columns have a smaller water plane area than the horizontal plates.
摘要翻译： 浮式海上钻井/生产结构。 该结构由多个紧密间隔的垂直定向的浮力柱形成，其上可以放置一个或多个模块或甲板以支撑工艺设备，钻机，公用设施和人员的住宿。 这些柱通过沿柱的长度间隔开的多个水平板和位于柱的底部附近并靠近柱的顶部的垂直板保持在间隔关系中。 钻孔和/或生产通过位于结构中心附近的立管完成。 该结构包括固定的镇流器，油存储区域，以及用于抵消储存油较轻重量的空隙和可变镇流器。 这些柱具有比水平板更小的水平面积。
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公开(公告)号：US6135673A
公开(公告)日：2000-10-24
申请号：US100285
申请日：1998-06-19
CPC分类号： B63B9/065 , B63B2035/442
摘要： A method and apparatus for rapidly deballasting and lifting a substructure in a marine environment to a level where it will engage with a deck so that both act together as one body. Generally, the installation is carried out as follows. The substructure is towed to the mating site and upended (if necessary). The substructure may be connected to a temporary mooring and fixed ballast installed if necessary. Selected compartments in the substructure are filled with sea water until the substructure is submerged below the water line to a desired depth. A predetermined quantity of compressed air is pumped into lower tanks in the substructure. The deck to be joined with the substructure is positioned above and in alignment with the substructure. The proper valves are opened to allow the compressed air in the lower tanks to flow into the upper tanks that contain sea water. The compressed air displaces the sea water from the upper tanks. This increases the buoyancy of the substructure and causes it to move upward into contact with the deck. As the process continues, the deck and substructure will eventually act as one body.
摘要翻译： 一种用于在海洋环境中快速卸载和提升底层结构的方法和装置，使其与甲板接合，使得两者一起作为一体。 通常，安装如下进行。 子结构被牵引到交配部位，并且（如果需要的话）。 如果需要，底座可以连接到临时系泊和安装的固定镇流器。 子结构中的选定的隔室中充满了海水，直到子结构浸没在水线下方到达所需的深度。 预定量的压缩空气被泵送到下部结构中的下部罐中。 与子结构连接的甲板位于底部结构的上方并与之对齐。 打开适当的阀门以允许下部罐中的压缩空气流入容纳海水的上部罐中。 压缩空气使上部水箱的海水排出。 这增加了底座的浮力并使其向上移动以与甲板接触。 随着过程的继续，甲板和底层将最终作为一体。
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公开(公告)号：US5881815A
公开(公告)日：1999-03-16
申请号：US931977
申请日：1997-09-17
IPC分类号： E21B15/02 , E21B17/01 , E21B19/00 , E21B33/035 , E21B34/04 , E21B34/16 , E21B43/01 , E21B7/12
CPC分类号： E21B34/16 , E21B15/02 , E21B17/012 , E21B19/002 , E21B33/035 , E21B34/04 , E21B43/01 , B63B2001/044 , B63B2035/442
摘要： A drilling, production, test, and oil storage caisson for use in deep water offshore well operations. Separate low pressure and high pressure drilling risers are independently supported on buoyancy modules. Multiple drilling and production risers are left in the water and connected to the drilling rig and well(s) as needed to prevent the need for the raising and lowering of different risers during the various steps involved in beginning and completing wells. Surface and lower BOP stacks are utilized. Means for controlling the accelerations and velocity of the drilling riser buoyancy modules in the event of riser failure is provided. A subsea tree with dual master valves allows for production directly through a vertical production riser, flowline, to the production manifold on the caisson. A twisted tubing production riser is formed from three strings of tubing that are used for the flowline, annulus, and conduit for control lines.
摘要翻译： 用于深水海上油井作业的钻井，生产，试验和储油沉箱。 单独的低压和高压钻井立管独立地支撑在浮力模块上。 多个钻井和生产提升管留在水中，并根据需要连接到钻机和井，以防止在开始和完井过程中涉及的各个步骤中升高和降低不同立管的需要。 利用表面和低BOP堆叠。 提供了在提升管故障的情况下控制钻井立管浮力模块的加速度和速度的装置。 具有双主阀的海底树木可直接通过垂直生产立管，流线，到沉箱上的生产歧管进行生产。 扭管生产提升管由用于控制线的流线，环形和导管的三根管道组成。
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