水包柴油钻井液技术研究与应用
Study and Application of W/O Emulsion Drilling Fluid
摘要: 为了更好的发现油气资源,开辟新的勘探领域,各大油田加强了对于低压储层的勘探开发的投入,欠平衡钻井技术应用也越来越广泛。渤海钻探工程技术研究院研究出了一套适合于欠平衡钻井的低密度水包柴油钻井液体系,该钻井液性能稳定,密度在0.86~0.96 g/cm
3之间可调,抗温高达220℃,抑制性好,抗污染能力强,可重复利用。该技术在华北油田多口探井成功应用,现场使用效果良好,助华北油田取得了多次重大油气发现。
Abstract:
In order to better explore and protect oil and gas resources, most of oil fields are enhancing the strength to low-pressure reservoir. Therefore, the technology of under-balance drilling is used more and more. A system of low-density W/O emulsion drilling fluid has been studied for under-balance drilling by Engineering Technology Research Institute of BHDC. The stabilization of this drilling fluid is great; the density is adjustable between 0.86 to 0.96 g/cm3; the resistibility for high-temperature is 220˚C; the inhibition is excellent; the resistibility for contamination is good; and this drilling fluid can be used for recurrence. This drilling fluid technology has been success-fully applied in many wells in Huabei Oilfield, and has achieved good results in field application. It has helped Huabei Oilfield to make many important oil and gas discoveries.
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