发明名称 |
REMOVE FINES FROM A SPENT AQUEOUS WELL TREATING FLUID |
摘要 |
Method of removing fines from a spent aqueous well treating fluid containing fines, a water-soluble polymer, a salting-out anion and/or a slightly soluble calcium or magnesium compound comprising the steps of: (a) raising the pH of the aqueous well treating fluid to allow agglomeration of the fines and precipitation of the water-soluble polymer; and (b) separating the agglomerates from the aqueous well treating fluid.
|
申请公布号 |
CA2161024(C) |
申请公布日期 |
2004.08.03 |
申请号 |
CA19942161024 |
申请日期 |
1994.04.19 |
申请人 |
SHELL CANADA LIMITED |
发明人 |
KILLIE, SIV;HOORN, JOHANNES ADRIAAN ARIS |
分类号 |
C09K8/03;C09K8/10;C09K8/12;E21B21/06;(IPC1-7):C09K7/02;C09K7/00 |
主分类号 |
C09K8/03 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|