METHODS OF CEMENTING A WELLBORE WITH THE USE OF AN OIL SWELLABLE ELASTOMER

    公开(公告)号:US20200002596A1

    公开(公告)日:2020-01-02

    申请号:US16022981

    申请日:2018-06-29

    IPC分类号: C09K8/40 E21B33/16

    摘要: A method of cementing a wellbore penetrating a subterranean formation, the method comprising: injecting into the wellbore an oil-based fluid; injecting into the wellbore a cement spacer fluid comprising an aqueous carrier, an oil swellable elastomer, and a viscosifier; contacting the oil-based fluid with the cement spacer fluid to swell the oil swellable elastomer in the cement spacer fluid; injecting a cement slurry into the wellbore; and allowing the cement slurry to set.