US 12,286,584 B2
High-performance primary emulsifier for invert-emulsion oil based mud
Jothibasu Ramasamy, Dhahran (SA); and Mujtaba M. Alsaihati, Dammam (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Nov. 30, 2021, as Appl. No. 17/538,609.
Prior Publication US 2023/0167350 A1, Jun. 1, 2023
Int. Cl. C09K 8/36 (2006.01); C09K 8/34 (2006.01)
CPC C09K 8/36 (2013.01) [C09K 8/34 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An invert oil-based mud (OBM), comprising:
an oleaginous continuous phase;
an aqueous internal phase; and
5.0 to 10 wt % of an emulsifier relative to the total weight of the OBM, wherein the emulsifier is 2-dodecenyl succinic acid.