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1. 发明授权

US08261826B2 Wellbore pressure control with segregated fluid columns 有权
标题翻译：井筒压力控制与分离的流体柱
公开(公告)号：US08261826B2
公开(公告)日：2012-09-11
申请号：US13457108
申请日：2012-04-26
申请人： James R. Lovorn , Emad Bakri , Jay K. Turner , Ryan G. Ezell
发明人： James R. Lovorn , Emad Bakri , Jay K. Turner , Ryan G. Ezell
IPC分类号： E21B21/00 , E21B21/08 , E21B33/13 , E21B44/00
CPC分类号： E21B21/08
摘要： A method of controlling pressure in a wellbore can include placing a barrier substance in the wellbore while a fluid is present in the wellbore, and flowing another fluid into the wellbore while the first fluid and the barrier substance are in the wellbore. The first and second fluids may have different densities. Another method can include circulating a fluid through a tubular string and an annulus formed between the tubular string and the wellbore, then partially withdrawing the tubular string from the wellbore, then placing a barrier substance in the wellbore, then partially withdrawing the tubular string from the wellbore and then flowing another fluid into the wellbore. A well system can include at least two fluids in a wellbore, the fluids having different densities, and a barrier substance separating the fluids.
摘要翻译：控制井眼中的压力的方法可以包括在液体存在于井眼中时将阻挡物放置在井筒中，并且当第一流体和阻挡物质在井眼中时将另一流体流入井眼。第一和第二流体可以具有不同的密度。另一种方法可以包括将流体循环通过管状管柱和形成在管状管柱和井筒之间的环形空间，然后将管状管柱从井眼中部分抽出，然后将阻挡物质放置在井眼中，然后将管状管柱从然后将另一种流体流入井眼。井系统可以包括在井筒中的至少两种流体，具有不同密度的流体和分离流体的阻挡物质。

2. 发明授权

US08201628B2 Wellbore pressure control with segregated fluid columns 有权
公开(公告)号：US08201628B2
公开(公告)日：2012-06-19
申请号：US13084841
申请日：2011-04-12
申请人： James R. Lovorn , Emad Bakri , Jay K. Turner , Ryan G. Ezell
发明人： James R. Lovorn , Emad Bakri , Jay K. Turner , Ryan G. Ezell
IPC分类号： E21B21/00 , E21B21/08 , E21B33/13
CPC分类号： E21B21/08
摘要： A method of controlling pressure in a wellbore can include placing a barrier substance in the wellbore while a fluid is present in the wellbore, and flowing another fluid into the wellbore while the first fluid and the barrier substance are in the wellbore. The first and second fluids may have different densities. Another method can include circulating a fluid through a tubular string and an annulus formed between the tubular string and the wellbore, then partially withdrawing the tubular string from the wellbore, then placing a barrier substance in the wellbore, then partially withdrawing the tubular string from the wellbore and then flowing another fluid into the wellbore. A well system can include at least two fluids in a wellbore, the fluids having different densities, and a barrier substance separating the fluids.

3. 发明授权

US08820405B2 Segregating flowable materials in a well 有权
标题翻译：分离井中的可流动材料
公开(公告)号：US08820405B2
公开(公告)日：2014-09-02
申请号：US13345546
申请日：2012-01-06
申请人： Jay K. Turner , James R. Lovorn
发明人： Jay K. Turner , James R. Lovorn
IPC分类号： E21B33/13 , E21B21/08
CPC分类号： E21B21/08 , E21B33/13
摘要： A method of segregating flowable materials in conjunction with a subterranean well can include segregating flowable cement from a fluid by placing a flowable barrier substance between the cement and the fluid, and the barrier substance substantially preventing displacement of the cement by force of gravity through the barrier substance and into the fluid. Another method of segregating flowable materials can include flowing a barrier substance into a wellbore above a fluid already in the wellbore, and then flowing cement into the wellbore above the barrier substance. A system for use in conjunction with a subterranean well can include a flowable cement isolated from a fluid by a flowable barrier substance positioned between the cement and the fluid, whereby the barrier substance substantially prevents displacement of the cement by force of gravity through the barrier substance and into the fluid.
摘要翻译：将可流动材料与地下井分开的方法可以包括通过在水泥和流体之间放置可流动的阻挡物质将可流动的水泥从流体中分离出来，并且阻挡物质基本上防止水泥通过重力作用通过阻挡层物质进入流体。分离可流动材料的另一种方法可以包括将阻挡物质流入已经在井眼中的流体上方的井筒中，然后将水泥流入屏障物质上方的井筒内。与地下井一起使用的系统可以包括通过位于水泥和流体之间的可流动阻挡物质从流体隔离的可流动的水泥，由此阻挡物质基本上防止水泥被重力作用通过阻挡物质并进入流体。

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