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公开(公告)号:US5483986A
公开(公告)日:1996-01-16
申请号:US255633
申请日:1994-06-09
申请人: David D. Onan , Vincent J. Bila , James L. Haney , Gary E. Folmnsbee , Ronney R. Koch , Randall D. Stilley , Larry T. Watters
发明人: David D. Onan , Vincent J. Bila , James L. Haney , Gary E. Folmnsbee , Ronney R. Koch , Randall D. Stilley , Larry T. Watters
CPC分类号: E21B33/16 , C09K8/424 , C09K8/601 , Y10T137/0318 , Y10T137/2082 , Y10T137/4643
摘要: Improved methods of displacing a first liquid through a pipe with a second liquid while preventing the first and second liquids from mixing are provided. In accordance with the methods, a plug is formed in-situ in the pipe between the first and second liquids by injecting a self-thickening liquid therein and permitting the liquid to thicken. The formed plug and the first liquid are then displaced through the pipe with the second liquid. The methods are particularly suitable for carrying out subterranean well bore cementing operations wherein cement slurries are displaced through pipes disposed in well bores.
摘要翻译: 提供了通过具有第二液体的管移动第一液体同时防止第一和第二液体混合的改进方法。 根据这些方法,通过在其中注入自增稠液体并允许液体增稠,在第一和第二液体之间的管道中原位形成塞子。 然后形成的塞子和第一液体通过管道与第二液体一起移动。 这些方法特别适合于进行地下井眼固井作业,其中水泥浆通过设在井眼中的管道而移位。
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公开(公告)号:US5355951A
公开(公告)日:1994-10-18
申请号:US31777
申请日:1993-03-15
申请人: Thomas E. Allen , Gary D. Arnold , Leonard R. Case , Mark A. Clark , Gary E. Folmnsbee , Jerry L. Gammill , James M. Macadam , John M. Richardson , Freddie L. Sabins , Larry T. Watters
发明人: Thomas E. Allen , Gary D. Arnold , Leonard R. Case , Mark A. Clark , Gary E. Folmnsbee , Jerry L. Gammill , James M. Macadam , John M. Richardson , Freddie L. Sabins , Larry T. Watters
CPC分类号: E21B47/0005 , E21B33/14
摘要: A method of evaluating a slurry mixing and placing process, such as a cementing process, for an oil or gas well comprises identifying and measuring specific subprocesses and parameters thereof, statistically summarizing the parameters and creating a database thereof, and analyzing the statistically summarized parameters to identify or compare against process capabilities to reduce variation, thereby improving specific job performance and the overall process.
摘要翻译: 评价用于油井或气井的浆料混合和放置过程(例如固井过程)的方法包括识别和测量特定的子过程及其参数,统计学地总结参数并创建其数据库,并将统计学总结的参数分析 识别或比较过程能力以减少变化,从而提高特定的工作绩效和整体流程。
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公开(公告)号:US5346011A
公开(公告)日:1994-09-13
申请号:US41083
申请日:1993-04-01
申请人: David D. Onan , Vincent J. Bila , James L. Haney , Gary E. Folmnsbee , Ronney R. Koch , Randall D. Stilley , Larry T. Watters
发明人: David D. Onan , Vincent J. Bila , James L. Haney , Gary E. Folmnsbee , Ronney R. Koch , Randall D. Stilley , Larry T. Watters
CPC分类号: E21B33/16 , C09K8/424 , C09K8/601 , Y10T137/0318 , Y10T137/2082 , Y10T137/4643
摘要: Improved methods of displacing a first liquid through a pipe with a second liquid while preventing the first and second liquids from mixing are provided. In accordance with the methods, a plug is formed in-situ in the pipe between the first and second liquids by injecting a self-thickening liquid therein and permitting the liquid to thicken. The formed plug and the first liquid are then displaced through the pipe with the second liquid. The methods are particularly suitable for carrying out subterranean well bore cementing operations wherein cement slurries are displaced through pipes disposed in well bores.
摘要翻译: 提供了通过具有第二液体的管移动第一液体同时防止第一和第二液体混合的改进方法。 根据这些方法,通过在其中注入自增稠液体并允许液体增稠,在第一和第二液体之间的管道中原位形成塞子。 然后形成的塞子和第一液体通过管道与第二液体一起移动。 这些方法特别适合于进行地下井眼固井作业,其中水泥浆通过设在井眼中的管道而移位。
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公开(公告)号:US4234344A
公开(公告)日:1980-11-18
申请号:US40254
申请日:1979-05-18
申请人: John M. Tinsley , Larry T. Watters
发明人: John M. Tinsley , Larry T. Watters
摘要: A low-density, high-strength cement composition useful in a high temperature environment, such as in thermal wells, which includes hydraulic cement, a siliceous material and a relatively low-density inorganic material.
摘要翻译: 用于高温环境的低密度,高强度水泥组合物,例如在热井中,其包括水硬性水泥,硅质材料和相对低密度的无机材料。
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公开(公告)号:US06732797B1
公开(公告)日:2004-05-11
申请号:US10188180
申请日:2002-07-02
IPC分类号: E21B3313
CPC分类号: E21B33/134
摘要: A method of forming a cementitious plug in a well is disclosed. According to the method, a well is selected for treatment which lacks sufficient formation pressure to cause well fluid to naturally flow to the surface of the well. In addition, a formation penetrated by the well has unobstructed access between it and the surface. Having thus selected a well for treatment, a liquid slurry comprising a cementitious material, whose density is greater than the density of the well fluid, is introduced into the well. The slurry is permitted to drive the well fluid into the formation. Sufficient slurry is added to the well to fill the well to the surface. The slurry is then permitted to set into a hardened mass.
摘要翻译: 公开了在井中形成水泥塞的方法。 根据该方法,选择一个井用于缺乏足够地层压力的处理,以使良好的流体自然地流到井的表面。 此外,由井渗透的地层在其与表面之间具有无障碍的通路。 由此选择了一个井用于处理,将包含密度大于井流体密度的水泥质材料的液体浆料引入井中。 允许浆料将井流体驱动到地层中。 将足够的浆料加入到孔中以将孔填充到表面。 然后将浆料置于硬化块中。
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