US 12,410,666 B2
Methods of using multi-particle lost circulation material in highly porous or fractured formations
Mohammed Omer, Abu Dhabi (AE); Francisco E. Fragachan, Katy, TX (US); and Samuel Strickland, Houston, TX (US)
Assigned to Weatherford Technology Holdings, LLC., Houston, TX (US)
Filed by Weatherford Technology Holdings, LLC., Houston, TX (US)
Filed on Oct. 18, 2023, as Appl. No. 18/489,738.
Claims priority of provisional application 63/582,302, filed on Sep. 13, 2023.
Prior Publication US 2025/0084713 A1, Mar. 13, 2025
Int. Cl. E21B 21/00 (2006.01); C09K 8/516 (2006.01); E21B 33/138 (2006.01)
CPC E21B 21/003 (2013.01) [C09K 8/516 (2013.01); E21B 33/138 (2013.01); C09K 2208/18 (2013.01)] 20 Claims
 
1. A method comprising:
injecting into a wellbore in a subterranean formation a multi-particle lost circulation material composition comprising:
a base fluid and
a degradable particle blend comprising substantially cylindrical particles and substantially spherical particles wherein the degradable particles are at least three different sizes and wherein a first-sized particles and a second-sized particles are substantially cylindrical and a third-sized particles are substantially spherical,
wherein said first-sized particles are present in the degradable particle blend at about 60 wt. % to about 70 wt. %, by weight of the degradable particle blend, wherein said second-sized particles are present in the degradable particle blend at about 15 wt. % to about 30 wt. %, by weight of the degradable particle blend, and wherein said third-sized particles are present in the degradable particle blend at about 10 wt. % to about 20 wt. %, by weight of the degradable particle blend; and
wherein said wellbore comprises at least one opening that causes at least some lost circulation that at its largest width is from about 7 mm to about 15 mm and wherein the degradable particle blend is used to seal or reduce lost circulation in the at least one opening.