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前言 油包水乳化泥浆是属于油基泥浆范畴的一种新型泥浆。这种泥浆用于钻起深井及复杂地层。美国从1953年正式在油田使用,其它先进的石油国家也陆续使用。已具有广泛成熟的经验,使用井深可达九千米以上。在长期的实践中证实油包水乳化泥浆具有下例优越性:可有效地钻穿水敏性的泥页岩地层,大段岩盐层,防塌防卡;耐高温,适于钻超深井;对油层渗透性不损害,特别是低压油气层;润滑性好,适于钻方向井;防止H_2S和
Foreword Water-in-oil emulsified mud is a new type of mud that belongs to the category of oil-based mud. This mud is used to drill deep and complex formations. The United States officially used oil fields in 1953, and other advanced oil countries are gradually using it. Has a wide range of mature experience, the use of well depth up to nine kilometers. In the long-term practice proved that the water-in-oil emulsified mud has the following advantages: It can effectively drill through the water-sensitive shale formations, large rock salt, anti-collapse card; high temperature, suitable for drilling ultra-deep well; The permeability of the reservoir is not compromised, especially the low-pressure oil and gas; lubricity is good, suitable for drilling directional wells; prevent H2S and