Abstract:
Methods and compositions are provided that relate to cementing operations, including a method of cementing that may comprise providing a settable composition that may comprise wollastonite, pumice, a calcium-ion source, and water, wherein the wollastonite may be present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice, and wherein the pumice may present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice. Embodiments of the method further may comprise allowing the settable composition to set.
Abstract:
A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing comprising: providing a settable composition comprising water and a cementitious component having a determined reactive index; and allowing the settable composition to set to form a hardened mass.
Abstract:
Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of consolidating spacer fluids in displacement of drilling fluids from a well bore annulus.
Abstract:
Embodiments disclose method and compositions that comprise cement kiln dust and rice husk ash. An embodiment comprises a method of cementing comprising: placing a settable composition into a subterranean formation, the settable composition comprising cement kiln dust, rice husk ash, and water; and allowing the settable composition to set.
Abstract:
Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of consolidating spacer fluids in displacement of drilling fluids from a well bore annulus. Embodiments may include determining the boundary between a cement composition and a consolidating spacer fluid based on presence of tagging material in the well bore.
Abstract:
A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing in a subterranean formation, comprising: introducing a cement composition into a subterranean formation, wherein the cement composition comprises cement, water, and a saponin; and allowing the cement composition to set in the subterranean formation.
Abstract:
Methods and compositions are provided that utilize pumice and various additives. An embodiment provides a method of remedial cementing in a subterranean formation comprising: providing a lightweight settable composition comprising pumice, a calcium activator, and water, wherein the lightweight settable composition has a density of less than about 13.5 pounds per gallon and is free of Portland cement; and using the lightweight settable composition in a remedial cementing method to seal one or more voids in a well bore. Also provided are pumice-containing remedial compositions and systems for remedial cementing.
Abstract:
A variety of methods and compositions are disclosed, including, in one embodiment, a method of treating a well comprising: providing a treatment fluid comprising a base fluid and a blended cementitious component, wherein the blended cementitious component comprises kiln dust from two or more different sources; and introducing the treatment fluid into a well bore.
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。