公开(公告)号：US20180266222A1

公开(公告)日：2018-09-20

申请号：US15925039

申请日：2018-03-19

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Medhi BAHONAR ,  Danial Kaviani

IPC: E21B43/24 ,  C09K8/592

CPC classification number: E21B43/2406 ,  C09K8/592 ,  E21B43/2408

Abstract: The invention relates to a system and method for steam assisted gravity drainage of hydrocarbons having increased solvent recovery thus improving the economics of steam-only injection processes such as steam assisted gravity drainage while reducing environmental impact. Embodiments aid the condensation of solvent either by shutting-in or reducing the steam injection or by injecting a secondary lighter and cheaper solvent post solvent-steam co-injection, after which, normal steam injection at optimized operating conditions is restarted and continued until blow down while primary solvent recovery is continued, thus significantly accelerating and maximizing the recovery of solvent injected without affecting the long term cumulative bitumen production.

公开(公告)号：US10584568B2

公开(公告)日：2020-03-10

申请号：US15925039

申请日：2018-03-19

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Mehdi Bahonar ,  Danial Kaviani

IPC: E21B43/24 ,  C09K8/592

Abstract: A system and method for steam assisted gravity drainage of hydrocarbons having increased solvent recovery to improve the economics of steam-only injection processes, such as steam assisted gravity drainage, while reducing environmental impact. Embodiments aid the condensation of solvent either by shutting-in or reducing the steam injection or by injecting a secondary lighter and cheaper solvent post solvent-steam co-injection, after which, normal steam injection at optimized operating conditions is restarted and continued until blow down while primary solvent recovery is continued, thus significantly accelerating and maximizing the recovery of solvent injected without affecting the long term cumulative bitumen production.

公开(公告)号：US09822624B2

公开(公告)日：2017-11-21

申请号：US14625115

申请日：2015-02-18

Applicant: ConocoPhillips Company ,  Total E&P Canada Ltd.

Inventor： Jianshe Wang ,  Danial Kaviani ,  David A Brown

IPC: E21B43/24 ,  E21B47/04 ,  E21B43/12

CPC classification number: E21B43/2408 ,  E21B43/126 ,  E21B47/04

Abstract: A vapor blow through avoidance method, process and system for oil producing wells developed based on an innovative theory of vapor blow through pump. The system consists of casing gas remover, dynamic fluid level detector and downhole pump. Process includes adjusting casing gas remover and or pump rate based on result of comparison of the detected dynamic fluid level with the pre-set target dynamic fluid level; therefore, it prevents vapor in annular space blowing through pump and optimizes the well production. The avoidance system applies to single or group and horizontal or vertical wells.