L17断块油藏开发规律及剩余油分布研究

发布时间：2018-09-19 08:48

【摘要】：我国复杂断块油藏分布众多,与常规油藏相比,由于复杂断块的地质构造及油水关系的复杂性,开采难度较大,因此针对复杂断块的地质特征及开发特征,综合分析各种因素对断块油藏开发规律的影响,研究剩余油在复杂断块中的分布特点,对改善复杂断块油藏开发效果以及提高复杂断块油藏的采收率具有重要的意义。本文以L17断块油藏为研究对象,开展了对复杂断块油藏开发规律及剩余油分布的研究。本文主要从产能递减规律及水驱开发规律两个方面进行油藏开发规律研究,通过对实际油藏开发资料的统计分析,以现代油藏工程理论为研究方法,分析了L17断块的产能特征,研究了产能递减规律,对影响产能递减的因素进行了系统性的分析,并提出了减缓产能递减的有效途径,对单井的增产措施进行了分析及评价;分析了L17断块含水率特征,利用经验公式法、童式图版法、水驱特征曲线法、产量递减法分别对采收率进行了预测,综合得到L17断块的水驱目标采收率,通过分析研究L17断块油藏的存水率、水驱储量控制程度、水驱储量动用程度等注水开发指标,对L17断块的水驱开发效果进行了评价。综合L17断块的储层物性特征、沉积特征、构造特征及开发特征等,对L17断块的剩余油分布模式及控制因素进行了定性分析研究,利用剩余油分布模糊综合评价理论对L17断块剩余油分布进行了定量评价及预测。
[Abstract]:There are many complex fault block reservoirs in China. Compared with conventional reservoirs, it is difficult to exploit because of the complexity of geological structure and oil-water relationship of complex fault blocks, so the geological characteristics and development characteristics of complex fault blocks are analyzed. Synthetically analyzing the influence of various factors on the development law of fault-block reservoir and studying the distribution characteristics of residual oil in complex fault-block are of great significance for improving the development effect of complex fault-block reservoir and enhancing the recovery factor of complex fault-block reservoir. Taking L17 fault block reservoir as the research object, the development law and remaining oil distribution of complex fault block reservoir are studied in this paper. In this paper, reservoir development law is mainly studied from two aspects: productivity decline law and water drive development law. Through statistical analysis of actual reservoir development data and modern reservoir engineering theory, the productivity characteristics of L17 fault block are analyzed. In this paper, the law of productivity decline is studied, the factors influencing productivity decline are systematically analyzed, and the effective ways to slow down productivity decline are put forward, the measures of increasing production of single well are analyzed and evaluated, and the water cut characteristics of L17 fault block are analyzed. By using empirical formula method, Tong type chart method, water drive characteristic curve method and production decline method, respectively, the recovery factor of L17 fault block is forecasted, and the water storage rate of L17 fault block reservoir is analyzed and studied. The water flooding development effect of L17 fault block is evaluated by water drive reserve control degree, water drive reserve production degree and so on. Based on the reservoir physical, sedimentary, structural and development characteristics of L17 fault block, the distribution pattern and controlling factors of residual oil in L17 fault block are qualitatively analyzed and studied. The residual oil distribution of L17 fault block is quantitatively evaluated and predicted by using the fuzzy comprehensive evaluation theory of residual oil distribution.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE347

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