US 12,435,258 B2
Organoclay-free invert emulsion oil-based drilling fluids with polyhedral oligomeric silsesquioxane
Jothibasu Ramasamy, Dhahran (SA); Vikrant Wagle, Dhahran (SA); and Mohammad A. Otaibi, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on May 27, 2022, as Appl. No. 17/827,273.
Prior Publication US 2023/0383167 A1, Nov. 30, 2023
Int. Cl. E21B 43/34 (2006.01); C09K 8/36 (2006.01)
CPC C09K 8/36 (2013.01) 9 Claims
OG exemplary drawing
 
1. A composition of an invert emulsion oil-based drilling fluid formulation comprising:
an invert emulsion of an oil phase and an aqueous phase, the oil phase including an oleaginous fluid; and
a liquid viscosifier that is a polyhedral oligomeric silsesquioxane (POSS), wherein the POSS is included in the invert emulsion oil-based drilling fluid formulation in an amount ranging from 0.1 to 10 pounds per barrel.