US 11,713,407 B2
Date tree waste-based compound fibrous LCMs
Md Amanullah, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Sep. 16, 2020, as Appl. No. 17/22,170.
Application 17/022,170 is a continuation in part of application No. 15/436,129, filed on Feb. 17, 2017, granted, now 10,800,959.
Claims priority of provisional application 62/356,862, filed on Jun. 30, 2016.
Prior Publication US 2021/0002537 A1, Jan. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 8/035 (2006.01); C09K 8/516 (2006.01)
CPC C09K 8/035 (2013.01) [C09K 8/516 (2013.01); C09K 2208/04 (2013.01); C09K 2208/08 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An altered drilling fluid, comprising:
a water-based drilling fluid or an oil-based drilling fluid; and
a lost circulation material (LCM), wherein the LCM consists of a plurality of date tree waste fibers produced from at least one of: date tree trunks, date tree rachis, date tree leaves, date tree leaflets, and date tree roots, wherein each of the plurality of date tree waste fibers has a length in the range of 5 millimeters (mm) to 15 mm, a diameter in the range of 0.5 millimeters (mm) to 0.8 mm, and an aspect ratio in the range of 6 to 30, and the plurality of date tree waste fibers have a moisture content of less than 3% by weight, wherein the plurality of date tree waste fibers have a concentration of at least 30 pounds-per-barrel (ppb) in the altered drilling fluid.