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:
Jan. 29, 2019
Filed:
May. 20, 2015
Total E&p Danmark A/s, Kobenhavn Ø, DK;
Jens Henrik Hansen, Doha, QA;
Sreejith Pulloor Kuttanikkad, Doha, QA;
Total E&P Danmark A/S, København Ø, DK;
Abstract
A wellbore () surrounded by a formation has a horizontal section provided with a non-cemented perforated liner (), thereby forming an annular space () between the liner and the formation. The annular space is divided into zones (zone, zone, zone) isolated from each other by means of respective external packers () arranged externally on the liner. Selective access to the zones is provided by means of an internal pipe () arranged inside the liner and provided with internal packers () corresponding to the respective external packers. For each of the zones, the internal pipe is provided with a valve () providing access between the inside of the internal pipe and the corresponding zone. Stimulation of the near-wellbore is performed by pumping acid or the like reactive fluid through the internal pipe into the wellbore and is performed simultaneously in adjacent zones of the annular space.