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US 5,211,238 AGranted
Method using micro-sphere cement slurries for deviated wells
AssigneeAtlantic Richfield Company
InventorRobert B. Carpenter
Life of this patent
Estimating the term…
Abstract
What is disclosed is an improved method of cementing downhole in deviated or horizontal sections of a well bore, characterized by an improved step of flowing into the well a micro-sphere laden cement slurry and letting it set up in the set cement in situ to provide zonal isolation, bond equipment in the well.
Claims10
A method of cementing a section of a well penetrating subterranean formations and which section deviates more than twenty-five degrees from the vertical comprising the steps of:
- a. flowing a micro-sphere laden cement slurry into the well and to said section;
- and
- b. leaving the cement slurry in said section of the well to bond the equipment in said section of the well and provide improved zonal isolation by eliminating development of free water channels.
Dependencies are inferred from the claim text.