公开(公告)号：US20180142527A1

公开(公告)日：2018-05-24

申请号：US15821352

申请日：2017-11-22

Applicant: STATOIL PETROLEUM AS

Inventor： Gisle Stjern ,  Gjermund GRIMSBO ,  Halvor KJØRHOLT ,  Pål Viggo HEMMINGSEN

IPC: E21B23/04 ,  E21B33/14 ,  E21B33/12

CPC classification number: E21B23/04 ,  E21B33/1204 ,  E21B33/134 ,  E21B33/14 ,  E21B43/116

Abstract: A method of plugging a well extending into a formation to facilitate temporary or permanent abandonment of the well. The method comprises conveying in one trip, a plug assembly and one or more explosive charges through the well together with a structure for providing wet sealant. The plug assembly comprises a foundation plug for supporting the wet sealant. The plug assembly is set beneath a plug formation location, prior to providing the wet sealant. The method also comprises providing the wet sealant to the plug formation location via the structure, so as to submerge the one or more explosive charges in the wet sealant, and then detonating the one or more explosive charges in the wet sealant at the plug formation location to cut through a tubular or tubulars of the well and into the formation.

公开(公告)号：US20160305225A1

公开(公告)日：2016-10-20

申请号：US15130472

申请日：2016-04-15

Applicant: STATOIL PETROLEUM AS

Inventor： Audun FAANES ,  Halvor KJØRHOLT ,  Torstein VINGE

IPC: E21B43/10 ,  E21B29/10 ,  E21B33/035

CPC classification number: E21B43/103 ,  E21B29/10 ,  E21B33/035 ,  E21B33/047 ,  E21B43/10 ,  E21B43/101

Abstract: Reducing the diameter of a well bore has many advantages. To achieve this a subsurface well bore is provided comprising one or more expandable sleeve components, preferably expandable liners, each expandable sleeve component being fully overlapped by one or more non expandable sleeve component, preferably conventional liners, such that the interior of the well bore is cased entirely by non expandable sleeve components. In addition the through holes for downhole lines can be provided within the well head rather than the tubing hanger. As the tubing hanger does not need to provide space for through holes and associated mounting couplings, its diameter can be reduced, thus reducing the internal diameter of the well bore by several inches.

Abstract translation: 降低井眼的直径具有许多优点。 为了实现这一点，提供了包括一个或多个可膨胀套筒部件，优选可膨胀衬套的地下井筒，每个可膨胀套筒部件由一个或多个不可扩展的套筒部件，优选常规的衬套完全重叠，使得井筒的内部为 完全由不可扩展的套管部件套管。 此外，用于井下管线的通孔可以设置在井口内，而不是管道悬挂器。 由于管道悬挂器不需要为通孔和相关的安装联轴器提供空间，所以其直径可以减小，从而将井眼的内径减小几英寸。

公开(公告)号：US20180023351A1

公开(公告)日：2018-01-25

申请号：US15722320

申请日：2017-10-02

Applicant: Statoil Petroleum AS

Inventor： Halvor KJØRHOLT ,  Jan Håvard JØRANSON ,  Fredrik VARPE

IPC: E21B17/18 ,  E21B43/14 ,  E21B33/124 ,  E21B43/25 ,  E21B43/26 ,  E21B34/06

CPC classification number: E21B17/18 ,  E21B33/124 ,  E21B34/06 ,  E21B43/14 ,  E21B43/255 ,  E21B43/26

Abstract: A method, system and apparatus for producing hydrocarbons from a low permeability reservoir formation. A wellbore with a plurality of fractures designated as one of a first or a second set of fractures is provided. A first fluid conduit is formed by an annulus between an outer casing of a tubular and an inner tubular member, and is arranged to transport produced hydrocarbons. An interior of the inner tubular member forms a second fluid conduit which is arranged to transport an injection fluid. A set of first openings is provided in fluid connection with the first fluid conduit, each first opening being located to substantially align with one of a first set of fractures. A set of second openings is provided in fluid connection with the second fluid conduit, each second opening being located to substantially align with one of a second set of fractures. A high pressure fluid is injected into the second set of fractures, which pushes hydrocarbons located in the low permeability reservoir towards the first set of fractures, thereby increasing the recovery rate of hydrocarbons in the low permeability reservoir.

公开(公告)号：US20150361759A1

公开(公告)日：2015-12-17

申请号：US14764927

申请日：2013-01-31

Applicant: STATOIL PETROLEUM AS

Inventor： Halvor KJØRHOLT ,  Gisle STJERN

IPC: E21B33/13 ,  E21B29/02

CPC classification number: E21B33/13 ,  E21B29/02 ,  E21B33/134

Abstract: A method of plugging a well extending into a hydrocarbon bearing formation fascilitates temporary or permanent abandonment of the well. The method includes detonating one or more explosive charges within a tubular or tubulars extending through the well in order to remove, fragment and or cut one or more sections of the tubulars around the entire circumference of the well to expose the surrounding formation or cement. The well is then filled in the region of the exposed surrounding formation or cement with a sealing material so as to form one or more plugs within the well to seal the well.

Abstract translation: 堵塞延伸到含烃地层中的井的方法将暂时或永久性地排放井。 该方法包括在延伸穿过井的管状或管状物中引爆一种或多种爆炸物，以便围绕井的整个圆周去除，碎裂和/或切割管状物的一个或多个部分以暴露周围的地层或水泥。 然后将井用密封材料填充在暴露的周围地层或水泥的区域中，以便在井内形成一个或多个塞子以密封井。

公开(公告)号：US20160047179A1

公开(公告)日：2016-02-18

申请号：US14778927

申请日：2014-03-21

Applicant: STATOIL PETROLEUM AS

Inventor： Halvor KJØRHOLT ,  Jan Håvard JØRANSON ,  Fredrik VARPE

IPC: E21B17/18 ,  E21B43/26 ,  E21B34/06 ,  E21B33/124 ,  E21B43/14

CPC classification number: E21B17/18 ,  E21B33/124 ,  E21B34/06 ,  E21B43/14 ,  E21B43/255 ,  E21B43/26

Abstract: A method, system and apparatus for producing hydrocarbons from a low permeability reservoir formation. A wellbore (3) with a plurality of fractures (7, 9) designated as one of a first (7) or a second (9) set of fractures is provided. A first fluid conduit (11) is formed by an annulus between an outer casing (10) of a tubular and an inner tubular (16) member, and is arranged to transport produced hydrocarbons. An interior of the inner tubular member forms a second fluid conduit (12) which is arranged to transport an injection fluid. A set of first openings (14) is provided in fluid connection with the first fluid conduit, each first opening being located to substantially align with one of a first set of fractures. A set of second openings (15) is provided in fluid connection with the second fluid conduit, each second opening being located to substantially align with one of a second set of fractures. A high pressure fluid is injected into the second set of fractures, which pushes hydrocarbons located in the low permeability reservoir towards the first set of fractures, thereby increasing the recovery rate of hydrocarbons in the low permeability reservoir.

Abstract translation: 一种用于从低渗透性储层形成生产烃的方法，系统和装置。 提供具有被指定为第一（7）或第二（9）组断裂之一的多个断裂（7,9）的井孔（3）。 第一流体导管（11）由管状的外壳（10）和内管（16）构件之间的环形成，并且被布置成输送生产的烃。 内部管状构件的内部形成第二流体导管（12），其被布置成输送注射流体。 提供与第一流体管道流体连接的一组第一开口（14），每个第一开口被定位成基本上与第一组裂缝中的一个对准。 提供与第二流体管道流体连接的一组第二开口（15），每个第二开口被定位成基本上与第二组裂缝中的一个对准。 将高压流体注入到第二组断裂中，其将位于低渗透性储层中的烃推向第一组断裂，从而提高低渗透油藏中烃的回收率。

公开(公告)号：US20150361782A1

公开(公告)日：2015-12-17

申请号：US14764934

申请日：2013-01-31

Applicant: STATOIL PETROLEUM AS

Inventor： Halvor KJØRHOLT ,  Gisle STJERN

IPC: E21B47/06 ,  E21B33/124

CPC classification number: E21B47/06 ,  E21B33/124 ,  E21B33/13 ,  E21B33/134 ,  E21B47/1025

Abstract: A method of plugging a well extending into a hydrocarbon bearing formation facilitates temporary or permanent abandonment of the well. The method includes forming two or more plugs within the well, the plugs being formed at longitudinally spaced apart locations whilst providing a fluid communication path from a region above the topmost plug to the or each space between adjacent plugs. This configuration facilitates pressure testing of one or more of the plugs by conducting fluid through said path.

Abstract translation: 堵塞延伸到含烃地层中的井的方法有助于临时或永久性地排放井。 该方法包括在井内形成两个或更多个塞子，塞子形成在纵向间隔开的位置处，同时提供从最上面的塞子上方的区域到相邻塞子之间或每个空间之间的流体连通路径。 这种配置通过使流体通过所述路径来促进一个或多个塞子的压力测试。