The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 1977
Filed:
Oct. 23, 1975
James F Arnold, Houston, TX (US);
Other;
Abstract
A method and system is provided wherein water is injected into a producing formation, particularly one which is partially depleted, for flow laterally into an offset well and thence downwardly into a separation zone or cavity which is located at a depth greater than the producing formation. The oil and water separates in the separation zone or cavity and each is separately flowed to the earth's surface. The arrangement is such that substantially no back pressure is exerted from the well into the formation. Preferably, the water is recirculated back for reinjection into the formation. Also, a treating chemical, such as an emulsion breaker can be injected into the separation zone or cavity for phase separation of the oil and water.