申请人:Halliburton Energy Services, Inc.
公开号:EP2471887A1
公开(公告)日:2012-07-04
Corrosion-inhibiting additives comprising certain surfactants, and associated treatment fluids and methods of use are described. In one embodiment, the method comprises: providing a treatment fluid that comprises a base fluid, an α,β-unsaturated aldehyde, a sulfur-containing compound, and at least one nitrogen-containing surfactant that is anionic, nonionic, amphoteric, or zwitterionic; and introducing the treatment fluid into a subterranean formation. In another embodiment, the method comprises: providing a corrosion-inhibiting additive that comprises an α,β-unsaturated aldehyde, a sulfur-containing compound, and at least one nitrogen-containing surfactant that is anionic, nonionic, amphoteric, or zwitterionic; contacting a surface with the corrosion-inhibiting additive; and allowing the corrosion-inhibiting additive to interact with the surface, whereby corrosion of the surface is at least partially inhibited or a portion of an undesirable substance on the surface is removed.
本文描述了包含某些表面活性剂的缓蚀添加剂以及相关的处理液和使用方法。在一个实施方案中,该方法包括:提供一种处理液,该处理液包括一种基液、一种α,β-不饱和醛、一种含硫化合物和至少一种阴离子、非离子、两性或齐聚离子的含氮表面活性剂;以及将该处理液引入地下地层。在另一个实施方案中,该方法包括:提供一种缓蚀添加剂,该添加剂包括一种α,β-不饱和醛、一种含硫化合物和至少一种阴离子、非离子、两性离子或共价键离子的含氮表面活性剂;将表面与缓蚀添加剂接触;以及使缓蚀添加剂与表面相互作用,从而至少部分抑制表面的腐蚀或去除表面上的部分不良物质。