基于人工裂缝地震预测的储层物性地质建模方法及应用
张学娟，冯丽，雍丹丹，王涵，冯庭乐，佘海燕
（重庆科技学院石油与天然气工程学院，重庆 400000）
摘要： 西峰油田西41 井区长8¹油层组属于低孔特低渗储层，天然裂缝不发育，油藏开发已借助压裂技术对储层进行
改造，为了有效预测研究区目的层剩余油分布，需要对压裂后储层物性发生的变化进行精细刻画。利用压裂后采集的地
震数据，采用五维地震裂缝预测技术预测人工压裂后地层裂缝信息；以压裂前井数据作为基质模型建立的基础数据，以
压裂后五维地震裂缝预测结果作为裂缝信息，建立人工压裂后储层物性地质模型；根据油田动态数据模拟试算拟合度情
况分析物性预测建模结果。分析结果表明，基于人工裂缝地震预测的储层物性建模方法建立的油藏模型袁全区；产油量指
标及全区综合含水指标模拟试算拟合度均较高，该方法建立的压裂后储层物性地质模型能够反映地层实际地质情况。
关键词： 低渗储层；人工压裂；裂缝建模；物性预测；地质模型
中图分类号： TE19      文献标志码： A      文章编号： 2095-0802-(2023)10-0014-04
Geological Modeling Method and Application of Reservoir Physical Properties
Based on Artificial Fracture Seismic Prediction
ZHANG Xuejuan, FENG Li, YONG Dandan, WANG Han, FENG Tingle, SHE Haiyan
(School of Petroleum and Natural Gas Engineering, Chongqing Institute of Science and Technology, Chongqing 400000, China)
Abstract: The Chang 81 oil reservoir group in the West 41 well area of Xifeng Oilfield belongs to a low porosity and ultra-low
permeability reservoir, with underdeveloped natural fractures. The reservoir development has been transformed using fracturing
technology. In order to effectively predict the distribution of remaining oil in the target formation in the study area, it is necessary
to finely characterize the changes in reservoir properties that occur after fracturing. In this paper, the seismic data collected after
fracturing were used to predict the fracture information of the artificially fractured formation using five -dimensional seismic
fracture prediction technology; the pre-fracturing well data were used as the base data for matrix model establishment, and the
five-dimensional seismic fracture prediction results after fracturing were used as the fracture information to establish a geological
model of the reservoir properties after artificial fracturing; the results of the physical property prediction modeling were analyzed
based on the simulated trial fit of the oilfield dynamic data. The analysis results show that the reservoir model based on the
seismic prediction of artificial fractures has a high fit of the daily oil production index and the comprehensive water content index
in the whole area, and the geological model of reservoir properties after fracturing established by this method can reflect the actual
geological conditions of the formation.

Key words: low permeability reservoir; artificial fracturing; fracture modeling; physical property prediction; geological model