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：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.