多轮次蒸汽吞吐井开发接替技术研究  

Research on Development Replacement Technology of Multi-cycle Steam Huff and Puff Wells

作　　者：王学忠 Wang Xuezhong(Sinopec Xinjiang Xinchun Petroleum Development Co., Ltd., Dongying Shandong 257000, China)

机构地区：[1]中石化新疆新春石油开发有限责任公司,山东东营257000

出　　处：《当代石油石化》2019年第6期30-34,共5页Petroleum & Petrochemical Today

摘　　要：多数稠油热采方案都会考虑蒸汽驱作为蒸汽吞吐后的接替技术,然而按照开发方案如期转驱的区块不多,究其原因在于已实施区块效果不理想。以C油田排601北薄浅层超稠油水平井蒸汽驱试验研究为例,深入分析发现,许多实施蒸汽吞吐的区块产量中也蕴含着蒸汽驱的贡献。对于浅层、高孔高渗、剩余油较为富集的多轮次蒸汽吞吐油田,蒸汽吞吐辅助蒸汽驱是较好的开发方式。相比单个试验井组,蒸汽驱规模化应用有助于摊薄开发成本,提高开发效益。还要及早开展水热裂解降黏、微生物采油研究,做好蒸汽驱之后的接替。研究成果对于该油田今后应采取什么开发方式具有一定指导意义。Most heavy oil thermal recovery schemes consider steam flooding as a replacement technology after steam stimulation. However, there are not many blocks that can be converted to flooding as scheduled according to the development scheme. The reason is that the effect of the implemented blocks is not satisfactory. Taking the experimental study of steam flooding in horizontal wells of ultra-heavy oil in the North thin shallow layer of Pai601 oilfield as an example, deep analysis shows that the contribution of steam flooding is also contained in the output of many blocks that implement steam stimulation. For shallow, high porosity, high permeability and rich residual oil multi-cycle steam stimulation oilfields, steam stimulation assisted steam flooding is a better development method. Compared with a single test well group, the scale of steam flooding application helps to reduce development costs and improve development benefits. It is also necessary to carry out research on hydrothermal cracking, viscosity reduction and microbial oil recovery as early as possible, and do a good job of succeeding after steam flooding. The research results have certain guiding significance for the future development mode of the oilfield.

关 键 词：多轮次蒸汽吞吐井 开发接替技术 规模应用难点 蒸汽驱 薄浅层超稠油 

分 类 号：TE357[石油与天然气工程—油气田开发工程]