宝北区块低渗高陡构造油藏综合开发技术研究

Comprehensive development technologies of the low-permeability high-steep structural reservoir in north Baolang block

宝浪油田宝北区块属于低渗高陡背斜油藏.针对高陡构造认识难度大、低渗油藏开发过程中易造成油层伤害等开发难点,开展了油藏地质综合研究,形成了以波动方程串级深度偏移处理方法为主的高陡构造识别技术、高气油比低渗油藏注水开发配套技术及以屏蔽暂堵技术和油管传输负压射孔技术为主的整体油层保护技术.经过近十年的开发实践证明,综合开发技术应用效果良好.

Aiming to the difficulties of identifying high-steep structures and easily causing reservoir damage in the development of low-permeability oil reservoir,the comprehensive research of reservoir and geology are carried out.Several comprehensive development technologies are put forward,and they are the high-steep structure identifying technology based on wave equation cascade depth migration processing technique,the water-injection development matching technology for high gas-to-oil ratio low-permeability reservoir,and the whole reservoir protection technology based on shielding temporary plugging technique and tubing transfer under-balance perforating technique.Through almost ten-years development practice,the comprehensive development technologies are verified to have good application results.