公开(公告)号：US09587480B2

公开(公告)日：2017-03-07

申请号：US14213768

申请日：2014-03-14

Applicant: Suncor Energy Inc.

Inventor： Uriel Guerrero ,  John Russell Engelman

IPC: E21B43/24 ,  E21B47/00 ,  E21B43/30

CPC classification number: E21B47/00 ,  E21B43/2406 ,  E21B43/2408 ,  E21B43/30

Abstract: Techniques for recovering hydrocarbons, such as heavy hydrocarbons or bitumen, from a cellar region below a horizontal production well can include providing a cellar well section that extends from the horizontal production well into the cellar region. The horizontal production well can be part of a Steam-Assisted Gravity Drainage (SAGD) in situ recovery system, which forms a hydrocarbon depleted region and a hydrocarbon bearing cellar region. The cellar region includes hydrocarbons that have been pre-heated by SAGD operations. One or more cellar well sections are provided from the SAGD production well to extend into the cellar region, in order to form a branched production well. A pressurizing gas can be injected into the hydrocarbon depleted region from a SAGD injection well, in order to provide sufficient pressure to promote production of pre-heated hydrocarbons from the cellar region through the cellar well section. A branch well section can also be provided from a horizontal production well into a pre-heated adjacent region.

Abstract translation: 从水平生产井下方的地下室区域回收碳氢化合物如重质烃或沥青的技术可以包括提供从水平生产井延伸到地下室区域的地窖井段。 水平生产井可以是蒸汽辅助重力排水（SAGD）原位回收系统的一部分，其形成烃耗尽区和含烃地区。 地下室区域包括通过SAGD操作预加热的烃。 从SAGD生产井提供一个或多个地窖井段以延伸到地窖区域中，以形成分支生产井。 可以从SAGD注入井将加压气体注入到烃贫化区域，以便提供足够的压力以促进从地窖区域通过地窖井段产生预热的烃。 也可以从水平生产井向预热的相邻区域提供分支井段。

公开(公告)号：US20140262220A1

公开(公告)日：2014-09-18

申请号：US14213768

申请日：2014-03-14

Applicant: Suncor Energy Inc.

Inventor： Uriel Guerrero ,  John Russell Engelman

IPC: E21B43/14 ,  E21B47/00 ,  E21B43/24

CPC classification number: E21B47/00 ,  E21B43/2406 ,  E21B43/2408 ,  E21B43/30

Abstract: Techniques for recovering hydrocarbons, such as heavy hydrocarbons or bitumen, from a cellar region below a horizontal production well can include providing a cellar well section that extends from the horizontal production well into the cellar region. The horizontal production well can be part of a Steam-Assisted Gravity Drainage (SAGD) in situ recovery system, which forms a hydrocarbon depleted region and a hydrocarbon bearing cellar region. The cellar region includes hydrocarbons that have been pre-heated by SAGD operations. One or more cellar well sections are provided from the SAGD production well to extend into the cellar region, in order to form a branched production well. A pressurizing gas can be injected into the hydrocarbon depleted region from a SAGD injection well, in order to provide sufficient pressure to promote production of pre-heated hydrocarbons from the cellar region through the cellar well section. A branch well section can also be provided from a horizontal production well into a pre-heated adjacent region.

Abstract translation: 从水平生产井下方的地下室区域回收碳氢化合物如重质烃或沥青的技术可以包括提供从水平生产井延伸到地下室区域的地窖井段。 水平生产井可以是蒸汽辅助重力排水（SAGD）原位回收系统的一部分，其形成烃耗尽区和含烃地区。 地下室区域包括通过SAGD操作预加热的烃。 从SAGD生产井提供一个或多个地窖井段以延伸到地窖区域中，以形成分支生产井。 可以从SAGD注入井将加压气体注入到烃贫化区域，以便提供足够的压力以促进从地窖区域通过地窖井段产生预热的烃。 也可以从水平生产井向预热的相邻区域提供分支井段。