公开(公告)号：US11225859B2

公开(公告)日：2022-01-18

申请号：US14565961

申请日：2014-12-10

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Logan Warren ,  Siluni Wickramathilaka ,  Thomas J. Wheeler ,  David A. Brown

IPC: E21B43/24

Abstract: Methods and systems produce petroleum products by insulating a thermal hydrocarbon recovery process from heat loss to surrounding areas of a formation utilizing an insulating composition including a non-gaseous phase component introduced into the reservoir that is different from water and insoluble in the hydrocarbons. The insulating composition may be disposed in the reservoir adjacent to where the heat loss is desired to be limited. In addition, the insulating composition may be disposed in a thief zone and may also be from an agent activated to form the composition at such desired locations by selecting activation dependent on at least one of temperature, time delay and oil saturation.

公开(公告)号：US10597579B2

公开(公告)日：2020-03-24

申请号：US14594456

申请日：2015-01-12

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Siluni Wickramathilaka ,  Logan Warren ,  Thomas J. Wheeler ,  David A. Brown

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

Abstract: The present invention relates to a method for reducing solvent retention in ES-SAGD process so as to increase process economics wherein an anti-retention agent is injected into the reservoir to decrease solvent retention in the reservoir. The anti-retention agent can be made pre-injection or can form in situ, and comprises an agent in which the solvent is readily soluble, such that the solvent partitions into the foam, colloidal dispersion, or gel, and out of the condensed water or steam, and away from the reservoir rock.