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.

Date of Patent:
Jan. 10, 2023

Filed:

Aug. 14, 2020
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Md Amanullah, Dhahran, SA;

Turki Al-Subaie, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/502 (2006.01); C09K 8/514 (2006.01); C09K 8/516 (2006.01); E21B 21/00 (2006.01);
U.S. Cl.
CPC ...
C09K 8/514 (2013.01); C09K 8/502 (2013.01); C09K 8/516 (2013.01); E21B 21/003 (2013.01); C09K 2208/08 (2013.01);
Abstract

Modified Drilling fluid compositions and methods for using drilling fluid compositions are provided with enhanced loss control properties where the modified drilling fluid may include a carrier fluid, one or more drilling fluid additives, and a loss control material blend. The loss control material blend may include a particle component of sized particulate comprising a plurality of a mixture of untreated date seed particles and a fibrous component comprising a mixture of hard date leaflet fibers and soft date tree fibers prepared from date tree waste materials. Methods to control lost circulation in a lost circulation zone in a wellbore may include introducing a modified drilling fluid into the wellbore such that the modified drilling fluid contacts the lost circulation zone.


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