Abstract:
Disclosed are spacer fluids comprising cement kiln dust ("CKD") and methods of use in subterranean formations. An embodiment discloses a method comprising: providing a foamed spacer fluid comprising CKD, a foaming agent, a gas, and water; and introducing the foamed spacer fluid into a well bore to displace at least a portion of a first fluid present in the well bore. Another embodiment discloses a method comprising: providing a foamed spacer fluid comprising a partially calcined kiln feed removed from a gas stream, a foaming agent, a gas, and water, wherein the partially calcined kiln feed comprises SiO 2 , Al 2 O 3 , Fe 2 O 3 , CaO, MgO, SO 3 , Na 2 O, and K 2 O; and introducing the foamed spacer fluid into a well bore to displace at least a portion of a first fluid present in the well bore.
Abstract translation:公开了包括水泥窑灰(“CKD”)和在地下地层中使用的方法的间隔液。 一个实施方案公开了一种方法,包括:提供包含CKD,发泡剂,气体和水的泡沫隔离液; 以及将所述泡沫隔离液引入井眼中以置换所述井眼中存在的第一流体的至少一部分。 另一个实施方案公开了一种方法,其包括:提供泡沫隔离液,其包含从气流,发泡剂,气体和水中除去的部分煅烧的窑炉进料,其中所述部分煅烧的窑炉进料包含SiO 2,Al 2 O 3,Fe 2 O 3,CaO,MgO ,SO 3,Na 2 O和K 2 O; 以及将所述泡沫隔离液引入井眼中以置换所述井眼中存在的第一流体的至少一部分。