Patent · US Active

SW-SAGD with between heel and toe injection

US11428086B2 · kind B2 · utility

0Cited by
13References
21Claims
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Assignee

Inventors

Key dates

Filing dateFeb 26, 2021
Grant dateAug 30, 2022
Priority date—
Expiry dateApr 30, 2041

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B43/305
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

Single well SAGD is improved by having one or more injection segments and two or more production segments between the toe end and the heel end of a flat, horizontal well. The additional injection points improve the rate of steam chamber development as well as the rate of production, as shown by simulations of a central injection segment bracketed by a pair of production segments (-P-I-P-), and by a pair of injection segments with three production segments (-P-I-P-I-P). Although the completion of the single well costs more, this configuration allows the development of thin plays that cannot be economically developed with traditional SAGD wellpairs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.