公开(公告)号：US09316097B2

公开(公告)日：2016-04-19

申请号：US14480338

申请日：2014-09-08

Applicant: Suncor Energy Inc.

Inventor： Russell Peter Warren Stancliffe ,  Grant John Duncan ,  Clayton Robert Phair ,  Gordon Theodore Stabb

IPC: E21B43/24 ,  E21B43/30 ,  E21B43/16 ,  E21B7/04

CPC classification number: E21B43/2406 ,  E21B7/046 ,  E21B43/164 ,  E21B43/168 ,  E21B43/2401 ,  E21B43/305

Abstract: A system and method are provided for recovering bitumen from a bitumen reserve. The method includes recovering bitumen from an alternative pay region in the bitumen reserve via gravity drainage using an inclined horizontally drilled well drilled from a drainage pit upwardly into the bitumen reserve. The drainage pit has been excavated into an area of an underlying formation that is, at least in part, adjacent to and underlying the bitumen reserve. The alternative pay region includes a region unsuitable for recovering bitumen by surface mining or by in situ recovery using wells that produce bitumen to ground level above the alternative pay region.

Abstract translation: 提供了一种用于从沥青储备中回收沥青的系统和方法。 该方法包括使用从排水坑向上钻入沥青储备区的倾斜水平钻井，通过重力排水从沥青储备中的替代工资区域中回收沥青。 排水坑已被挖掘到至少部分邻近沥青储备的基础地层的一个区域。 替代工资区域包括不适合通过地面采矿回收沥青的区域，或者使用在替代工资区域以上产生沥青至地面的井的原位回收。