摘要
提出了使用解堵剂ＣＹ３解除油藏水堵的方法。讨论了油层中水堵（水锁）的形成。简介了解堵剂ＣＹ３的组成，测定了ＣＹ３降低油田污水和淡水表面张力的能力，通过人造和天然岩心模拟实验考察了ＣＹ３解除泥浆和油污造成的堵塞的能力。通过若干井例简介了ＣＹ３在国内许多油田应用的情况。
Y3 is an aqueous solution of special surfactant(s), permeating agent, clay stabilizer, organic solvents and others. The surface activity of CY3 is studied by measuring surface tension of solution in a field produced water and an injection (fresh) water. In coreflow experiments the blockagerelieving ability of CY3 in the mud and crudecontaminated cores is shown to be fairly good(the most damage being observed in mediumpermeable cores). The field uses of CY3 in a number of oil fields are described and examplified, both for production and waterinjection wells. The creation of water blockage in reservoirs is discussed.
出处
《油田化学》
CAS
CSCD
北大核心
1998年第2期109-112,共4页
Oilfield Chemistry
关键词
油层解堵剂
地层伤害
油田
CY-3
Water Blocking, Blockage Relieving Fluid, Relieving Blockage in Proudction and Injection Wells, Formation Damage, Research and Development of Chemical Agent
