河南油田稠油出砂冷采几个重要问题探讨

在根据现场资料分析研究的基础上，结合河南油田稠油油藏特点，对影响稠油出砂冷来技术发展的４个主要问题进行了探讨。结果表明：稠油出砂冷采井必须采用大孔径、深穿透、高密度射孔技术；采用适应高含砂量和高原油粘度的高转速螺杆泵，且螺杆泵下入油层底部；特、超稠油是出砂冷采技术的主要应用领域，现场试验必须有足够的时间，并采取相应的技术措施；对受断层控制的窄条状多层稠油油藏，宜采用丛式定向井进行开发。

Several Important Issues on Cold Production of Heavy Oil in Henan Oilfield

Four main problems that have effects on heavy oil cold production technique are discussed on base of field data. Big-hole, deep penetration and high density pattern perforation technology must be applied in cold production wells; progressive cavity pumps with high rotation speed and being suitable for high sand cut and large crude densi ty should be used and run to the bottom of oil layers; ultraheavy and superheavy oil layers are the main targets for cold production; and directional cluster wells are suitable for development of multiplayer narrow string heavy oil reservoirs controlled by faults.