径向井压裂裂缝形态及热采产能研究

发布时间：2018-03-14 02:46

本文选题：径向井压裂　切入点：蒸汽吞吐　出处：《岩性油气藏》2017年06期 　论文类型：期刊论文

【摘要】：径向井压裂技术与蒸汽吞吐热采技术的联合是一种有效适用于低渗透稠油油藏且兼具经济性的开发技术,目前在国内还处于现场实验阶段,缺少理论研究。通过径向井压裂物理模拟实验研究压裂裂缝形态,并在实验结果的基础上进行径向井压裂辅助蒸汽吞吐产能数值模拟研究。结果表明:径向井对压裂裂缝的扩展具有一定的引导作用,多径向井条件下会产生多裂缝形态,有效提高了泄油面积;径向井压裂辅助蒸汽吞吐产能是常规压裂辅助蒸汽吞吐产能的2.65倍(3年累计产油量),证明了该技术在低渗透稠油油藏的适应性,并在此研究基础上以产能为标准明确了该联合技术中的最优热采参数。研究结论为现场径向井压裂辅助蒸汽吞吐技术开采低渗透稠油油藏提供了理论依据,对该技术的发展完善和应用具有指导意义。
[Abstract]:The combination of radial well fracturing and steam stimulation is an effective and economical development technology for low permeability heavy oil reservoirs. At present, it is still in the field experiment stage in China. Lack of theoretical research. Through radial well fracturing physical simulation experiments to study fracturing fracture morphology, On the basis of the experimental results, the numerical simulation of fracturing auxiliary steam stimulation productivity in radial wells is carried out. The results show that radial wells can guide fracture propagation to some extent, and multi-fracture patterns will be produced under multi-radial well conditions. The auxiliary steam stimulation capacity of radial well is 2.65 times that of conventional fracturing auxiliary steam huff and puff (3 years cumulative oil production), which proves the adaptability of this technology in low permeability heavy oil reservoir. On the basis of this research, the optimal thermal recovery parameters of the combined technology are determined by using productivity as the standard. The results provide a theoretical basis for the field radial well fracturing assisted steam huff and puff technology in the production of low permeability heavy oil reservoirs. It has guiding significance for the development and application of this technology.
【作者单位】：中国石油大学(华东)石油工程学院;中国石化胜利油田分公司临盘采油厂;
【基金】：国家自然科学基金青年基金项目“径向钻孔引导水力压裂裂缝定向扩展机理研究”(编号:51404288)资助
【分类号】：TE348

【相似文献】