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A CEMENT SLURRY AND A METHOD FOR THE PRODUCTION OF SUCH A CEMENT SLURRY, AS WELL AS A USE FOR A LIGHT WEIGHT FILLING MATERIAL AS AN ADDITIVE IN A CEMENT SLURRY
A CEMENT SLURRY AND A METHOD FOR THE PRODUCTION OF SUCH A CEMENT SLURRY, AS WELL AS A USE FOR A LIGHT WEIGHT FILLING MATERIAL AS AN ADDITIVE IN A CEMENT SLURRY
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机译:水泥浆和生产这种水泥浆的方法,以及作为水泥浆添加剂的轻质填充材料的用途
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摘要
A water insoluble material consisting of porous particles, preferably of glass, is used as a light weight filling substance additive for a cement slurry of the kind used in cementing operations within bore holes, especially oil and gas wells, for the main purpose of letting the porous glass particles accommodate water prior to the material's admixture into the cement slurry or subsequent to this admixture, so that extra water is held in readiness within the cement slurry admixed said filling substance. The cement slurry will then, upon hydration and deficiency of water, be able to absorb extra water from the pores of the porous particles, thus counteracting the cement slurry's liability to shrinkage.
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