公开(公告)号：US10718193B2

公开(公告)日：2020-07-21

申请号：US13973036

申请日：2013-08-22

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Daniel Ray Sultenfuss ,  Wayne Reid Dreher, Jr.

IPC: E21B43/243 ,  E21B43/24

Abstract: Methods and systems produce petroleum products from a formation by a steam assisted process followed by an in situ combustion process. The steam assisted process utilizes an injector and first producer to form a steam chamber within the formation as the products are recovered. The in situ combustion then starts by injecting an oxidant into the formation and ignition of residual products. A combustion front advances toward a second producer that may be offset in a lateral direction from the first producer. Heat and pressure from the in situ combustion sweeps the products ahead of the combustion front to the second producer for recovery.