公开(公告)号：US11530346B2

公开(公告)日：2022-12-20

申请号：US16881548

申请日：2020-05-22

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Abdullah Al-Yami ,  Salem Alshammari ,  Vikrant Wagle ,  Hussain Albahrani ,  Zainab Alsaihati ,  Mohammad Alawami ,  Ali Al-Safran ,  Nasser Al-Alhareth ,  Abdullah Al-Awadh ,  Abdulaziz Alhelal

IPC: C09K8/14 ,  C04B33/04 ,  C04B33/13

Abstract: Disclosed are methods of preparing drilling fluid compositions containing treated calcium bentonite. One such method includes mixing calcium bentonite with an aqueous mixture containing soda ash, followed by adding starch to form the treated bentonite mixture that is used to prepare a drilling fluid composition. Another method includes mixing the calcium bentonite with an aqueous mixture containing soda ash and magnesium oxide, followed by adding starch to form the treated bentonite mixture that is used to prepare a drilling fluid composition.