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公开(公告)号：US20150096806A1
公开(公告)日：2015-04-09
申请号：US14458922
申请日：2014-08-13
Applicant: Shell Oil Company
Inventor： Ernesto Rafael FONSECA OCAMPOS , Duncan Charles MACDONALD , Francisco Jose CHACIN , Anastasia DOBROSKOK , Yinghui LIU , Benjamin MOWAD , Mark William DYKSTRA
CPC classification number: E21B43/25 , E21B4/04 , E21B4/16 , E21B7/00 , E21B7/001 , E21B7/28 , E21B11/06 , E21B43/305
Abstract: A system and method are provided for providing access to surfaces within a formation is provided, the method including: providing a wellbore from a first surface location to a second surface location; inserting into the wellbore a cylindrical cutting assembly connected to at least two wellbore tubulars, one of the wellbore tubular extending to each of the first surface location and the second surface location; and rotating the radial cylindrical cutting element.
Abstract translation: 提供了一种提供用于提供对地层内的表面的通路的系统和方法，所述方法包括：将井眼从第一表面位置提供到第二表面位置; 将连接到至少两个井眼管的圆柱形切割组件插入井筒中，井眼管中的一个延伸到第一表面位置和第二表面位置中的每一个; 并旋转径向圆柱形切割元件。
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公开(公告)号：US20180245446A1
公开(公告)日：2018-08-30
申请号：US15903272
申请日：2018-02-23
Applicant: SHELL OIL COMPANY
Inventor： Patricia ASTRID , Abhay Kumar SINGH , John Edward HUHMAN , Matthew Alan STOEVER , Mark William DYKSTRA , Rob Hendrikus Gerardus Marinus GRAUWMANS , Jan-Jette BLANGÉ
Abstract: A system and method for optimized control of an assembly for drilling a borehole comprises a self-tuning, multivariable controller and an optimization engine that manipulates the setpoints of the controller such that drilling performance may be continuously optimized. The method includes evaluation of a characteristic system time constant, using this constant to compute bit ROP, using computed ROP to compute process gains, which are used to tune the multivariable controller, automatically refining controller setpoints based on controller performance, and using an optimization engine to systematically adjust controller setpoints such that drilling parameters are optimized based on any of several performance indicators, or a weighted combination of performance indicators. The method further comprises using at least one performance indicators which may be computed using estimated bit ROP: bit wear parameter; gradient of cost per foot; gradient of bit ROP versus WOB; simplified mechanical specific energy; and hydraulic specific energy.
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公开(公告)号：US20160230523A9
公开(公告)日：2016-08-11
申请号：US14458922
申请日：2014-08-13
Applicant: Shell Oil Company
Inventor： Ernesto Rafael FONSECA OCAMPOS , Duncan Charles MACDONALD , Francisco Jose CHACIN , Anastasia DOBROSKOK , Yinghui LIU , Benjamin MOWAD , Mark William DYKSTRA
CPC classification number: E21B43/25 , E21B4/04 , E21B4/16 , E21B7/00 , E21B7/001 , E21B7/28 , E21B11/06 , E21B43/305
Abstract: A system and method are provided for providing access to surfaces within a formation is provided, the method including: providing a wellbore from a first surface location to a second surface location; inserting into the wellbore a cylindrical cutting assembly connected to at least two wellbore tubulars, one of the wellbore tubular extending to each of the first surface location and the second surface location; and rotating the radial cylindrical cutting element.
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