西柳同口地区沙一下段水平井开发适应性及采油工艺优化研究

发布时间：2018-03-09 04:09

  本文选题：蠡县斜坡　切入点：水平井开发　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：本文通过对饶阳凹陷蠡县斜坡西柳同口地区实施的水平井进行分析与总结,得出适用水平井开发的油藏地质特征,探讨了合理的井网形式和注水政策。在适用性研究的基础上,制定水平井设计的标准与方法,对水平井开发技术政策进行优化。本次研究的主要内容有四个方面:一是水平井地质适用性评价,其中包括水平井地质评价、水平井设计标准与方法和西柳同口适合部署水平井的区块地质特征;二是油藏工程适用性评价,包括井网、注水政策和经济效益评价;三是水平井开发技术政策优化,包括井型、井距、水平段长度、压裂裂缝优化等方面的研究;四是采油工艺研究,包括完井方式、射孔方式、采油方式和增产措施评价。为实现研究目的,采用适当的技术路线,即通过西柳同口地区实钻水平井的分析,总结适用水平井开发的油藏地质特征,总结西柳同口地区水平井的设计方法,经过优化,制定水平井设计的标准。通过对实钻水平井的研究,分析水平井的井网与注水政策的适用性并进行经济评价。在水平井适用的基础上,优化具体的开发技术,优选合适的采油工艺。通过研究得出五点认识:一是构造简单、砂体分布稳定、油层纵向上层数较少的油藏具备钻探水平井的地质条件;二是从已钻水平井区的开采效果看,储层物性好的油藏钻探水平井的开发效果好。物性差、油品差的油藏,大部分井处于效益边沿;三是对于低渗透油藏,必须超前注水,对于常规渗透的油藏,对注水时机要求不高;四是采用下套管固井完井、分段射孔、常规工艺采油较为合适;五是酸化和压裂是水平井增产的有效手段。
[Abstract]:Based on the analysis and summary of horizontal wells in Xiliukou area of Lixian slope in Raoyang depression, the reservoir geological characteristics suitable for horizontal well development are obtained, and the rational well pattern and water injection policy are discussed. To formulate the standard and method of horizontal well design and optimize the technical policy of horizontal well development. The main contents of this study are as follows: first, evaluation of geological applicability of horizontal wells, including geological evaluation of horizontal wells, The design standards and methods of horizontal wells and the geological characteristics of the blocks suitable for the deployment of horizontal wells in Xiliu, the applicability evaluation of reservoir engineering, including well pattern, water injection policy and economic benefit evaluation, and the optimization of horizontal well development technology policy, The research includes well type, well spacing, horizontal section length, fracturing fracture optimization and so on. Fourth, oil recovery technology research, including completion, perforation, oil production and evaluation of stimulation measures. By adopting the appropriate technical route, that is, through the analysis of the actual drilling horizontal wells in Xiliu Tongkou area, the reservoir geological characteristics suitable for horizontal well development are summarized, and the design method of horizontal wells in Xiliu Tongkou area is summarized, which is optimized. The standard of horizontal well design is formulated. Through the study of real drilling horizontal well, the applicability and economic evaluation of well pattern and water injection policy of horizontal well are analyzed. On the basis of the application of horizontal well, the specific development technology is optimized. The optimum selection of appropriate oil production technology. Through the study, five points of understanding are obtained: first, reservoirs with simple structure, stable distribution of sand bodies and less vertical upper layers of oil layers have geological conditions for drilling horizontal wells; second, from the point of view of the production effect of the horizontal well areas that have been drilled, For reservoirs with good reservoir physical properties, most wells are at the edge of benefit in drilling horizontal wells. For reservoirs with poor physical properties and poor oil quality, most wells are on the edge of benefits; third, for low permeability reservoirs, water must be injected ahead of time, and for conventional permeable reservoirs, The requirements of water injection timing are not high; fourth, casing cementing completion, segmental perforation, conventional production process is more appropriate; fifth, acidification and fracturing are effective means to increase production in horizontal wells.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE243;TE355
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本文编号：1586910