摘要
针对洼38块稠油油藏吞吐后期,低效益井增加,开发效果变差的问题,借鉴蒸汽驱、间歇蒸汽驱、蒸汽段塞驱的驱油机理和井组筛选标准,优选低油汽比井组进行一注多采试验。试验后,井组地层能量得到一定补充,地层压力升高,蒸汽驱动油流到达生产井,延长了井组周期产油量、油汽比和经济效益。在油藏未能全面转为蒸汽驱开发前,一注多采是改善稠油油藏吞吐后期开发效果的有效手段之一。
In the later stage of taking in and sending out inspissated pools in Wa 38 block, the number of low benefit wells increases and the development effect is not good enough. In view of these problems, by drawing lessons from oil displacement mechanism of steam drive, intermittent and steam slug drive and the select standards of well groups,we choose well groups of low oil - gas ratio to take one gas injection and more exploitation test. After the experiment, producing energy of well group is added to some extent; formation pressure is increased; steam drives oil to get to production well; circle oil production capacity of well group, oil - gas ratio and economic benefit are all improved. Before the full development of reservoir by steam flooding, one gas injection and more exploitation is one of the effective means to improve the development effect of inspissated pools which are in the later stage of taking in and sending out.
出处
《承德石油高等专科学校学报》
CAS
2009年第3期7-9,91,共4页
Journal of Chengde Petroleum College
关键词
一注多采
效果评价
稠油油藏
洼38块
one gas injection and more exploitation
effect valuation
inspissated pool
Wa 38 block
