公开(公告)号：US10648308B2

公开(公告)日：2020-05-12

申请号：US15968087

申请日：2018-05-01

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Bo Chen ,  Thomas James Wheeler ,  Pradeep Ananth Govind

IPC: E21B43/24 ,  E21B43/16 ,  C09K8/594 ,  C09K8/592

Abstract: A variation of expanding solvent steam assisted gravity drainage (ES-SAGD) production of heavy oil wherein steam and hydrocarbon solvent are co-injected into a heavy oil reservoir and water, hydrocarbon solvent and heavy oil are produced by gravity drainage until the steam chamber is well developed or until oil recovery reaches about 20-30% of oil in place. At that time, the wells are switched to a lateral sweep using non-condensible gas (NSG) and steam co-injection, where more hydrocarbon solvent is recovered than is recovered with ES-SAGD used alone and where the cumulative steam to oil ratio is reduced over using -ES-SAGD alone.

公开(公告)号：US11668176B2

公开(公告)日：2023-06-06

申请号：US17481530

申请日：2021-09-22

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Bo Chen ,  Qing Chen

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

CPC classification number: E21B43/305 ,  E21B43/2408 ,  E21B43/164 ,  E21B43/168

Abstract: A well configuration for co-injection processes, wherein a horizontal producer well at the bottom of the pay is combined with injection or injection and producer wells that are vertical and above the lower horizontal production well. This well arrangement minimizes “blanket” effects by non-condensable gases.

公开(公告)号：US11156072B2

公开(公告)日：2021-10-26

申请号：US15673809

申请日：2017-08-10

Applicant: ConocoPhillips Company

Inventor： Bo Chen ,  Qing Chen

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

Abstract: A well configuration for co-injection processes, wherein a horizontal producer well at the bottom of the pay is combined with injection or injection and producer wells that are vertical and above the lower horizontal production well. This well arrangement minimizes “blanket” effects by non-condensable gases.

公开(公告)号：US10526881B2

公开(公告)日：2020-01-07

申请号：US14955894

申请日：2015-12-01

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Bo Chen ,  Qing Chen

IPC: E21B43/24

Abstract: Producing hydrocarbons by steam assisted gravity drainage, more particularly, utilizing conventional horizontal wellpair configuration of SAGD in conjunction of infill production well, to coinject oil-based solvents with steam initially and then switch to NCG-steam coinjection after establishing thermal communication between the thermal chamber and infill well.

公开(公告)号：US10287864B2

公开(公告)日：2019-05-14

申请号：US14956030

申请日：2015-12-01

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Bo Chen ,  Qing Chen ,  Thomas J. Wheeler

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

Abstract: Producing hydrocarbons by steam assisted gravity drainage, more particularly utilizing conventional horizontal wellpair configuration of SAGD in conjunction of infill production wells the production wells comprising two or more fishbone lateral wells to inject steam initially and then switch to NCG-steam coinjection after establishing thermal communication between the thermal chamber and infill well.