公开(公告)号：US20140144627A1

公开(公告)日：2014-05-29

申请号：US14080320

申请日：2013-11-14

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Arelys Y. Salazar Hernandez ,  Tawfik N. NASR

IPC: E21B43/24 ,  C09K8/592

CPC classification number: C09K8/592 ,  E21B43/2408

Abstract: A steam-assisted gravity drainage method includes a two stage solvent injection scheme, wherein steam plus solvent injection is followed by steam plus heavier-solvent injection. The two solvent injections improve recoveries of both the heavy oil and the injected solvent while limiting steam requirements, thus improving the economics of the method.

Abstract translation: 蒸汽辅助重力排水方法包括两阶段溶剂注入方案，其中蒸汽加溶剂注入之后是蒸汽加较重溶剂注入。 两种溶剂注射提高了重油和注入溶剂的回收率，同时限制了蒸汽需求，从而提高了该方法的经济性。

公开(公告)号：US20150083413A1

公开(公告)日：2015-03-26

申请号：US14491517

申请日：2014-09-19

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Arelys Y. SALAZAR ,  Tawfik N. NASR

IPC: E21B43/24 ,  E21B43/30

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

Abstract: Hydrocarbons in a subterranean reservoir are recovered using Expanding Solvent-Steam Assisted Gravity Drainage (ES-SAGD), including recovering hydrocarbons while reducing the solvent retention in the reservoir. Reducing solvent retention improves process economics.

Abstract translation: 使用扩展溶剂 - 蒸汽辅助重力排水（ES-SAGD）回收地下储层中的碳氢化合物，包括回收碳氢化合物，同时降低储层中的溶剂残留。 降低溶剂保留率提高了工艺经济性。

公开(公告)号：US20140332210A1

公开(公告)日：2014-11-13

申请号：US14273880

申请日：2014-05-09

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Tawfik N. NASR ,  David A. BROWN

IPC: E21B43/24

CPC classification number: E21B43/24 ,  C09K8/592 ,  E21B43/2408

Abstract: Methods relate to producing hydrocarbons, such as bitumen in an oil sands reservoir. The methods include utilizing an injector well with multiple horizontal laterals to provide downward fluid drive toward a producer well. Combined influence of gravity and a dispersed area of the fluid drive due to the laterals facilitate a desired full sweep of the reservoir. Fluids utilized for injection include water heated to less than 60 weight percent steam, solvent for the hydrocarbons and emulsifying agent for the hydrocarbons. The methods employing these fluids provide energy efficient recovery of the hydrocarbons.

Abstract translation: 方法涉及生产碳氢化合物，如油砂储层中的沥青。 这些方法包括利用具有多个水平侧面的喷射器井向生产井提供向下的流体驱动。 重力和流体驱动的分散区域由于侧面部分的组合影响有助于储存器的期望的全扫描。 用于注射的流体包括加热至少于60重量％的蒸汽的水，烃的溶剂和烃的乳化剂。 采用这些流体的方法提供了能量回收的能量。

公开(公告)号：US20220315828A1

公开(公告)日：2022-10-06

申请号：US17843706

申请日：2022-06-17

Applicant: ConocoPhillips Company

Inventor： Arelys Y. SALAZAR HERNANDEZ ,  Tawfik N. NASR

IPC: C09K8/592 ,  E21B43/24

Abstract: A steam-assisted gravity drainage method is described that includes a two stage solvent injection scheme, wherein steam plus solvent injection is followed by steam plus heavier-solvent injection. The two solvent injections improve recoveries of both the heavy oil and the injected solvent while limiting steam requirements, thus improving the economics of the method.