Z区块水平井区开发调整方式研究

发布时间：2018-01-30 19:40

本文关键词： Z区块水平井剩余油开发调整数值模拟　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：Z区块是具有代表性的水平井与直井联合开发试验区块,投入开发以来,由于受复杂断层以及初期布井方式的影响,各水平井注采情况较为复杂,生产能力差异较大,部分水平井开发效果变差,导致区块整体开发效果受到较大影响,所以有必要对该区块的水平井区进行开发调整方式的研究。本文具体内容如下:第一,分析了Z区块的构造特征、储层特征和流体特征,绘制了区块的生产动态曲线,对注水开发动态特征、含水上升特征以及压力变化特征等进行了分析评价,绘制了水平井的生产动态曲线,对水平井开发动态特征和压裂效果进行了分析评价,通过总结,明确了水平井开发存在的主要问题,为水平井区开发方式的调整提供了依据;第二,根据Z区块地层、流体和开发的相关参数,通过Eclipse软件建立了研究各调整方式的理想模型,在此基础上分别进行模拟计算,优化了调整的方式并确定了相关参数,为水平井区开发调整方式的最终确定提供了参考;第三,利用基础静态资料,通过Petrel建模软件建立了Z区块的三维相控地质模型,再应用Eclipse黑油模拟器E100建立了数值模型,并进行了地质储量拟合和动态历史拟合,在此基础上对纵向剩余油、平面剩余油以及水平井剩余油分布特征进行了分析;最后,针对水平井开发存在的主要问题,从剩余油分析入手,遵循一定的优化原则,并利用优化出的开发调整方式和相关调整参数,提出了改善各水平井开发效果的针对性调整对策,并对各调整方案进行了数值模拟预测,最终制定了Z区块的综合调整对策。该研究成果可为区块水平井区的开发调整提供指导。
[Abstract]:Z block is a representative horizontal well and vertical well joint development test block, since the development, due to the complex faults and the initial well layout, the horizontal wells injection and production is more complex. The difference of production capacity is great, and the development effect of some horizontal wells becomes worse, which results in the overall development effect of the block being greatly affected. Therefore, it is necessary to study the development adjustment mode of horizontal well area in this block. The specific contents of this paper are as follows: first, the structural characteristics, reservoir characteristics and fluid characteristics of Z block are analyzed. The production dynamic curve of the block is drawn, and the characteristics of waterflooding development, water cut rise and pressure change are analyzed and evaluated, and the production dynamic curve of horizontal well is drawn. The development performance characteristics and fracturing effect of horizontal wells are analyzed and evaluated. Through summing up the main problems in horizontal well development are defined, which provides a basis for the adjustment of development mode in horizontal well area. Second, according to the Z block formation, fluid and development parameters, through the Eclipse software to establish an ideal model for the study of various adjustment methods, and on this basis, respectively. The adjustment mode is optimized and the relevant parameters are determined, which provides a reference for the final determination of the development adjustment mode in horizontal well area. Thirdly, using the basic static data, the three-dimensional phase-controlled geological model of Z block is established by Petrel modeling software, and the numerical model is established by using Eclipse black oil simulator E100. The distribution characteristics of longitudinal residual oil, plane residual oil and remaining oil in horizontal well are analyzed on the basis of geological reserve fitting and dynamic historical fitting. Finally, aiming at the main problems existing in horizontal well development, starting with the analysis of remaining oil, following certain optimization principles, and using the optimized development adjustment mode and related adjustment parameters. The countermeasures to improve the development effect of each horizontal well are put forward, and the numerical simulation prediction of each adjustment scheme is carried out. Finally, the comprehensive adjustment countermeasures of Z block are worked out, and the research results can provide guidance for the development and adjustment of horizontal well area in block.
【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】：TE357.6

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