摘要:
A method of improving the flow properties of at least one dry particulate cementitious or non-cementitious material comprises dry-blending a particulate flow enhancing additive with said cementitious or non-cementitious material, said additive being comprised of a particulate solid absorbent material having a flow inducing polar-molecule-producing chemical absorbed thereon. A method of transporting the material comprises placing the blended material in a storage tank, transporting the storage tank to a location of use and conveying the blended material out of the storage tank.
摘要:
Reactive cement compositions for sealing hydrocarbon-containing subterranean zones comprise water, a hydraulic cement, an organophilic clay, a hydratable gelling agent and a water soluble alkaline source.
摘要:
Water-based drilling fluids are removed from downhole surfaces in a well bore, leaving the surfaces water-wet, by contacting the surfaces with a water-based removal solution comprised of water and a mixture of a sulfonated kraft lignin salt and an N-methyl-N-oleyltaurine salt dissolved therein is provided. The solution can be used as a spacer between drilling fluid and a cementing composition.
摘要:
Water-based drilling fluids are removed from downhole surfaces in a well bore, leaving the surfaces water-wet, by contacting the surfaces with a water-based removal solution comprised of water and a mixture of a sulfonated kraft lignin salt and an N-methyl-N-oleyltaurine salt dissolved therein is provided. The solution can be used as a spacer between drilling fluid and a cementing composition.