公开(公告)号：US3784579A

公开(公告)日：1974-01-08

申请号：US3784579D

申请日：1972-03-13

Applicant: DRESSER IND

Inventor： WERLEIN E ,  TAYLOR B ,  MCGLOTHLIN R ,  SCHULTZ R

IPC: E21B21/00 ,  E21B21/04

CPC classification number: E21B21/003

Abstract: A FLUID-LOSS REDUCTION AGENT FOR DRILLING FLUIDS AND A METHOD FOR MAKING SAME BY REACTING GATTY ACIDS, TITANIUM COMPOUNDS, AND SOAP PRODUCING METALS OR METAL OXIDE COMPOUNDS.

公开(公告)号：US3852202A

公开(公告)日：1974-12-03

申请号：US29896672

申请日：1972-10-19

Applicant: DRESSER IND

Inventor： WELLS P ,  MCGLOTHLIN R

IPC: C09K8/03 ,  C09K3/10

CPC classification number: C09K8/032 ,  Y10S507/925

Abstract: A well completion and packer fluid additive consisting essentially of finely divided chrysotile asbestos and fumed alumina predominately of the gamma crystalline modification. The fluids prepared with this additive have greater temperature stability and improved weight suspending characteristics. In addition, there is less gellation and after extended exposure to temperatures above 250*F., under quiescent conditions, the system can be easily fluidized and displaced from the well bore.

Abstract translation: 一种完井和封隔器流体添加剂，主要由精细分解的温石棉和热解氧化铝组成，主要是γ晶体改性。 用该添加剂制备的流体具有更高的温度稳定性和改善的重量悬浮特性。 此外，在静态条件下，较少的凝胶化和长时间暴露于高于250°F的温度下，系统可以容易地从井筒流化和移位。