发明授权
US06494951B1 Cementing compositions using dry cementitious materials having improved flow properties
有权
使用具有改善的流动性能的干燥胶结材料的水泥组合物
- 专利标题: Cementing compositions using dry cementitious materials having improved flow properties
- 专利标题(中): 使用具有改善的流动性能的干燥胶结材料的水泥组合物
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申请号: US09405544申请日: 1999-09-23
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公开(公告)号: US06494951B1公开(公告)日: 2002-12-17
- 发明人: Baireddy R. Reddy , Ronald E. Sweatman , James F. Heathman , Russell M. Fitzgerald , Ronald J. Crook
- 申请人: Baireddy R. Reddy , Ronald E. Sweatman , James F. Heathman , Russell M. Fitzgerald , Ronald J. Crook
- 主分类号: C04B2404
- IPC分类号: C04B2404
摘要:
Cement compositions and methods of cementing within subterranean formations penetrated by well bores wherein the flow properties of one or more dry particulate cementitious materials are improved and wherein the materials can be readily conveyed out of storage tanks and the like. A preferred composition of the present invention comprises a particulate flow enhancing additive dry-blended with one or more dry particulate cementitious materials, said flow enhancing additive being comprised of a particulate solid material carrying a flow inducing polar chemical, and a sufficient amount of water to form a pumpable slurry. The methods basically include the steps of dry-blending the particulate flow enhancing additive with the one or more dry particulate cementitious materials; forming a pumpable slurry using the one or more cementitious materials having the particulate flow enhancing additive blended therewith; pumping the slurry into a well bore; and then allowing the slurry to solidify within the subterranean formation.