CAJ | 학술논문

RN油田是中石油海外经营开采最早的、中亚规模较大的碳酸盐岩油藏。油田自然递减率高，主力油藏地层压力保持水平低，纵向动用程度不高，层间矛盾大。结合油田实际情况，研究了3种分层注水技术——液力投捞分层注水、同心双管分层注水、桥式偏心分层注水技术。现场应用表明，桥式偏心分层注水和同心双管分注技术应用效果显著，液力投捞分注技术不适用于该油田。该研究对海外碳酸盐岩油田开发具有重要指导意义。
RN유전시중석유해외경영개채최조적、중아규모교대적탄산염암유장。유전자연체감솔고，주력유장지층압력보지수평저，종향동용정도불고，층간모순대。결합유전실제정황，연구료3충분층주수기술——액력투로분층주수、동심쌍관분층주수、교식편심분층주수기술。현장응용표명，교식편심분층주수화동심쌍관분주기술응용효과현저，액력투로분주기술불괄용우해유전。해연구대해외탄산염암유전개발구유중요지도의의。
RN oilifled is the earliest large oilifeld in Middle Asia developed by Petrochina overseas. The oilifeld faced high produc-tion decline, low reservoir pressure maintaining, low vertical producing degree, serious conlficts between layers. According to actual conditions of the oilifeld, three types of effective and economic separated layer water injection techniques have been selected:separated layer water injection by hydraulic running and pulling, concentric pipe separated layer water injection and bridge-type eccentric separate layer water injection. Field application shows bridge-type eccentric separated layer water injection and concentric pipe separated layer water injection work well in this oilifeld, separated layer water injection by hydraulic running and pulling is not suitable for this ifeld. The research results are instructive to the high efifcient development of overseas carbonate oil ifelds.