发明名称 |
Pumice-Containing Remedial Compositions and Methods of Use |
摘要 |
Methods and compositions are provided that utilize pumice and various additives. An embodiment provides a method of remedial cementing in a subterranean formation comprising: providing a lightweight settable composition comprising pumice, a calcium activator, and water, wherein the lightweight settable composition has a density of less than about 13.5 pounds per gallon and is free of Portland cement; and using the lightweight settable composition in a remedial cementing method to seal one or more voids in a well bore. Also provided are pumice-containing remedial compositions and systems for remedial cementing. |
申请公布号 |
US2014318784(A1) |
申请公布日期 |
2014.10.30 |
申请号 |
US201313873905 |
申请日期 |
2013.04.30 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Chatterji Jiten;Brenneis D. Chad;Benkley James R. |
分类号 |
C09K8/467;E21B33/138 |
主分类号 |
C09K8/467 |
代理机构 |
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代理人 |
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主权项 |
1. A method of remedial cementing in a subterranean formation comprising:
providing a lightweight settable composition comprising pumice, a calcium activator, and water, wherein the lightweight settable composition has a density of less than about 13.5 pounds per gallon and is essentially free of any additional cementitious components, wherein the water is present in an amount in a range of from about 40% to about 200% by weight of the pumice, wherein the lightweight settable composition is foamed with a foaming additive and a gas; and placing the lightweight settable composition into a void or crack in the subterranean formation, a gravel pack, a conduit, a cement sheath, or a microannulus. |
地址 |
Houston TX US |