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在裂缝性油气藏中,裂缝即是主要的渗流通道,更是主要的储集空间,其发育程度与单井产能和油气藏发育的规模有直接联系,但在一些地下情况复杂且地震资料解释难度较大或者缺乏的区块,裂缝识别和预测难度更大。本文根据示点性过程模拟理论,提出基于示点性过程模拟的裂缝储集体建模方法,并以塔里木油田库车地区K区块裂缝性油气藏为例,以单井成像及露头岩心资料为基础,利用裂缝发育主控因素作为约束实现插值从而建立研究区裂缝属性模型,直观刻画油气藏内裂缝各种属性参数的分布及发育趋势,在新井验证中预测准确率达到80%以上,为后期裂缝渗流行为及非均质性研究提供有效地质模型,有效规避了缺乏地震资料带来的限制,丰富了储层地质建模方法研究,对裂缝性油气藏的有效开发具有一定实际意义。
In fractured reservoirs, the fractures are the main seepage channels and are the main reservoir space. The development degree of the fractures is directly related to the single well productivity and the scale of oil and gas reservoir development. However, in some underground situations and the interpretation of seismic data Difficult or lacking blocks, cracks identification and prediction more difficult. In this paper, based on the point-to-point process simulation theory, a fracturing reservoir modeling method based on the point-point process simulation is proposed. Taking the K-block fractured reservoir in the Kuqa area of Tarim oilfield as an example, single well imaging and outcrop core data Based on the main control factors of fracture development as interpolation to establish the fracture attribute model of the study area and visually characterize the distribution and development trend of various attribute parameters of the fracture in the oil and gas reservoirs. The accuracy of prediction in the new well verification is above 80% The study on seepage behavior and heterogeneity of fractures provides an effective geological model, effectively avoids the limitations caused by the lack of seismic data, enriches the research on reservoir geological modeling and has practical significance for the effective development of fractured reservoirs.