公开(公告)号：US3887009A

公开(公告)日：1975-06-03

申请号：US46389974

申请日：1974-04-25

Applicant: OIL BASE

Inventor： MILLER GEO L ,  BARTHEL HORST K F

IPC: C04B28/30 ,  C09K8/05 ,  C09K8/42 ,  E21B33/13 ,  E21B33/14

CPC classification number: C09K8/42 ,  C04B28/30 ,  C09K8/05

Abstract: A low clay content aqueous drilling mud or a magnesium saltbased aqueous drilling mud may be transformed into cement for well cementing by addition of magnesium oxide, magnesium sulfate and dolomite or magnesium carbonate to produce a magnesium oxysulfate cement.

公开(公告)号：US3878110A

公开(公告)日：1975-04-15

申请号：US30038972

申请日：1972-10-24

Applicant: OIL BASE

Inventor： MILLER GEORGE L ,  BARTHEL HORST K F

IPC: C09K8/16 ,  E21C41/10

CPC classification number: C09K8/16

Abstract: An aqueous drilling fluid is provided containing dolomite, magnesium sulfate, calcium sulfate, starch or a similar polymeric fluid loss material and a small amount of calcium oxide or magnesium oxide in a brine solution.

Abstract translation: 在盐水溶液中提供含有白云石，硫酸镁，硫酸钙，淀粉或类似的聚合物流体损失材料和少量氧化钙或氧化镁的含水钻井液。