公开(公告)号：US20150114637A1

公开(公告)日：2015-04-30

申请号：US14524205

申请日：2014-10-27

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Lilian LO ,  Qing CHEN

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

CPC classification number: E21B43/2408 ,  E21B43/164

Abstract: Methods produce heavy oil with steam assisted gravity drainage. Such methods alternate a traditional steam injection with an injection of a steam-plus-non-condensable gas (such as CO2 or CO2-plus-diluent) mixture. The CO2/diluent mixture is soluble in bitumen, leading to a reduction in viscosity of the heavy oil. Additionally, the steam-only injection reduces the accumulation of vapor NCG along the edge of the steam chamber, leading to improved thermal efficiency.

Abstract translation: 方法用蒸汽辅助重力排水法生产重油。 这种方法将传统的蒸汽注入与注入蒸汽加不可冷凝气体（例如CO 2或CO 2加稀释剂）混合物交替。 CO2 /稀释剂混合物可溶于沥青，导致重油的粘度降低。 另外，仅蒸汽喷射减少蒸汽NCG沿着蒸汽室边缘的积聚，从而提高热效率。

公开(公告)号：US20140034296A1

公开(公告)日：2014-02-06

申请号：US13954389

申请日：2013-07-30

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Qing CHEN ,  Lilian LO ,  Olajide AKINLADE

IPC: E21B43/30 ,  E21B43/24

CPC classification number: E21B43/30 ,  E21B43/24 ,  E21B43/2406 ,  E21B43/2408

Abstract: Methods and systems produce petroleum products by steam assisted gravity drainage with dual producers separated vertically and laterally from at least one injector. Placement of the producers limits temperature rise of draining fluids and hence reflux of non-condensable gases injected with steam. In particular, the fluids drain along a steam chamber boundary for recovery at positions that are not in a direct downward path from where the injector is introducing heat.

Abstract translation: 方法和系统通过蒸汽辅助重力排水生产石油产品，双重生产者从至少一个注射器垂直和横向分离。 生产者的放置限制排水流体的温度升高，从而限制注入蒸汽的不可冷凝气体的回流。 特别地，流体沿着蒸汽室边界排出，以在不在喷射器引入热的直接下降路径的位置处恢复。