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公开(公告)号：EP1492937A1
公开(公告)日：2005-01-05
申请号：EP03712436.9
申请日：2003-04-01
摘要： Slips (1, 21, 41) for engaging any jointed, coiled or flexible tubular with substantially no scoring, gouging or scraping, such as when supporting a drill string in a borehole or gripping a tubular (2, 22) during the connection or disconnection of a tool joint or pulling a cable or pipeline; additionally, applying a pre-determined minimum gripping force in order to avoid rotary slippage when the weight of the string is insufficient to achieve a conventional slips action; additionally, including a coarse wedge (30, 50) to take up the extra travel of a worn tool joint or a tubular of smaller diameter, with a means to ensure that the coarse wedge acts before the fine wedge (29, 49) does and a means to ensure that the wedging action remains if the actuating force is removed; additionally, including a secondary slips (40) to interfere with the upset on the tool joint to avoid relying on friction to support the string and a means of integrating this with the gripping slips and ensuring that the secondary slips act first; additionally, the application of these attributes 'upside down' to achieve the action of snubbing when forcing a tubular into compression instead of tension for any reason.
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公开(公告)号：EP1330590A1
公开(公告)日：2003-07-30
申请号：EP01978643.3
申请日：2001-10-30
CPC分类号： E21B33/085 , E21B19/16 , E21B33/068 , E21B2021/006
摘要： A coupler and a method for continuously circulating a drilling fluid through a drill string while adding or removing tubulars has a lower fluid pressure seal adapted to engage a drill string; lower grips adapted to engage a drill string; a valve positioned above said lower grips; upper grips adapted to engage a tubular to be added to or removed from said string; and an upper fluid pressure seal adapted to engage said tubular.
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公开(公告)号：EP0932745B1
公开(公告)日：2005-04-13
申请号：EP97945007.9
申请日：1997-10-14
IPC分类号： E21B21/00 , E21B33/068 , E21B19/16 , E21B3/02
CPC分类号： E21B33/068 , E21B19/16 , E21B21/01 , E21B2021/006
摘要： A method for drilling wells in which the tubular (5) can be added or removed from the drill string (17) whilst the drill is rotating with the mud and drilling fluids being circulated continuously and kept separated from the environment to reduce pollution. A connector is used with an inlet (15) and outlet (10) for the mud etc. and which incorporates rams (11) to seal off and separate the flow of mud as a tubular is added or removed.
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4.发明公开
公开(公告)号：EP1660753A1
公开(公告)日：2006-05-31
申请号：EP04768064.0
申请日：2004-08-16
摘要： Apparatus and a method for adding and removing tubulars whilst containing the pressure within a drill string and/or maintaining circulation of drilling fluid down a drill string using a diverter sub which is able to open up to mud flow from a side mud port and close off the flow of mud from above the drill string with or without continuous rotation of the drill string.
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公开(公告)号：EP1492937B1
公开(公告)日：2007-03-21
申请号：EP03712436.9
申请日：2003-04-01
摘要： Slips (1, 21, 41) for engaging any jointed, coiled or flexible tubular with substantially no scoring, gouging or scraping, such as when supporting a drill string in a borehole or gripping a tubular (2, 22) during the connection or disconnection of a tool joint or pulling a cable or pipeline; additionally, applying a pre-determined minimum gripping force in order to avoid rotary slippage when the weight of the string is insufficient to achieve a conventional slips action; additionally, including a coarse wedge (30, 50) to take up the extra travel of a worn tool joint or a tubular of smaller diameter, with a means to ensure that the coarse wedge acts before the fine wedge (29, 49) does and a means to ensure that the wedging action remains if the actuating force is removed; additionally, including a secondary slips (40) to interfere with the upset on the tool joint to avoid relying on friction to support the string and a means of integrating this with the gripping slips and ensuring that the secondary slips act first; additionally, the application of these attributes 'upside down' to achieve the action of snubbing when forcing a tubular into compression instead of tension for any reason.
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公开(公告)号：EP1507952B1
公开(公告)日：2006-06-21
申请号：EP03722797.2
申请日：2003-04-29
摘要： An underwater drilling rig in modular form, which can be simply assembled underwater and in which standard tubulars and tubular assemblies are stored in a novel arrangement within containers and can be added to, and removed from, the string in the well bore, whilst there is continuous circulation of drilling fluid and also continuous segregation of drilling fluid from the seawater; additionally: with a simple means of accessing the tubulars and gripping them from inside in order to make up tool joint connection to the top drive sub, with a means to guide and centralise each tubular or tubular assembly on entering the well bore or when being returned to storage, with a means to enable the top drive to snub with greatly reduced force and no risk of buckling the tubular; with a rig support vessel that, in the absence of a marine riser, drill string or drilling rig, is greatly reduced in size and can roam extensively to ride out bad weather, while the seabed rig continues to drill; lastly with the novel ability to control the mud pressure and flow both in and out of the well bore at seabed level, thus greatly improving downhole pressure strategy; ultimately the first system that can operate at water depths of 10,000 to 20,000 feet which is still beyond the current economic and technical ability of offshore drilling rigs.
摘要翻译： 一种模块化形式的水下钻机，可以简单地在水下组装，其中标准管件和管状组件以新颖的方式储存在集装箱内，并可以添加到井筒中的绳索中或从井筒中取出， 钻井液的连续循环以及钻井液与海水的连续分离; 另外：用一种简单的方式进入管件并从内部抓住管件，以便与顶部驱动件进行工具接头连接，并且具有在进入井筒或返回时引导和集中每个管件或管件的装置 通过一种手段使顶部驱动器能够以大大减小的力量进行缓冲并且不存在使管件弯曲的风险; 在没有海洋立管，钻柱或钻机的情况下，钻机支撑船的体积大大缩小，可以大面积漫游以渡过恶劣的天气，而海底钻机继续钻探; 最后具有新颖的控制泥浆压力和流入和流出海底井筒的能力，从而大大改善井下压力策略; 最终成为第一套可在10,000至20,000英尺水深下运行的系统，这仍超出海上钻井平台的当前经济和技术能力。
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公开(公告)号：EP1121508B1
公开(公告)日：2005-04-06
申请号：EP99949233.3
申请日：1999-10-14
CPC分类号： E21B33/068 , E21B19/16 , E21B21/01 , E21B2021/006
摘要： In drilling wells tubular members are added to or removed from the drill string whilst the circulation of mud continues and there is a blind preventer (6) positioned between lower slips and grips (8) engaging a downhole drill string and an upper slips and grips (5) engaging a tubular to be added to the drill string and the tubular is positioned on the blind preventer, the blind preventer opened and the upper slips and grips passed through the blind preventer and the tubular connected to the drill string.
摘要翻译： 在钻井中，管状部件被添加到钻柱或者从钻柱移除，同时泥浆的循环继续并且存在位于下部卡瓦和夹紧件（8）之间的防盲装置（6），该夹紧装置（8）接合井下钻柱和上部卡瓦和夹具 5）接合待添加到钻柱中的管件，并将管件定位在防盲装置上，打开防盲装置，并使上部滑动件和夹具穿过防盲装置和连接到钻柱的管件。
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公开(公告)号：EP1121508A1
公开(公告)日：2001-08-08
申请号：EP99949233.3
申请日：1999-10-14
CPC分类号： E21B33/068 , E21B19/16 , E21B21/01 , E21B2021/006
摘要： In drilling wells tubular members are added to or removed from the drill string whilst the circulation of mud continues and there is a blind preventer (6) positioned between lower slips and grips (8) engaging a downhole drill string and an upper slips and grips (5) engaging a tubular to be added to the drill string and the tubular is positioned on the blind preventer, the blind preventer opened and the upper slips and grips passed through the blind preventer and the tubular connected to the drill string.
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