公开(公告)号：US3779915A

公开(公告)日：1973-12-18

申请号：US3779915D

申请日：1972-09-21

Applicant: DOW CHEMICAL CO

Inventor： KUCERA C

IPC: C09K8/76 ,  E21B43/26 ,  E21B43/27

CPC classification number: C09K8/76 ,  E21B43/26 ,  Y10S507/922 ,  Y10S507/933

Abstract: A composition is provided which is especially useful as a fluid loss additive for acidic aqueous solutions. The composition is prepared by first mixing together an emulsifier, an oil soluble surfactant dispersing agent and a carrier oil. Clay particles are then dispersed in the mixture followed by an adhesive binder which functions to bind the clay particles together when screened out on a formation face.

Abstract translation: 提供了一种特别可用作酸性水溶液的流体损失添加剂的组合物。 通过首先将乳化剂，油溶性表面活性剂分散剂和载体油混合在一起来制备组合物。 然后将粘土颗粒分散在混合物中，然后粘合粘合剂，当粘合剂粘合剂在形成面上筛选时，其粘合粘合剂粘合在一起。

公开(公告)号：US3749173A

公开(公告)日：1973-07-31

申请号：US3749173D

申请日：1972-05-30

Applicant: DOW CHEMICAL CO

Inventor： HILL D ,  SMITH C ,  KUCERA C

IPC: C09K8/528 ,  E21B21/00 ,  E21B33/16 ,  E21B33/14

CPC classification number: C09K8/528 ,  E21B21/00 ,  E21B33/16

Abstract: A method is disclosed for displacing drilling muds from boreholes. In the method, an organic liquid, gelled with a metal salt of an aliphatic substituted orthophosphate ester, is pumped into the hole through the casing or annulus to force the drilling mud out through the annulus or casing.