岩石力学参数标定系统关键技术研究

发布时间：2018-05-07 15:12

本文选题：岩石力学参数 + 常规测井　；参考：《地学前缘》2017年03期

【摘要】：岩石力学参数建模在地应力建模、甜点预测与井网部署优化等研究工作中起着重要作用。利用常规测井资料计算井点岩石力学参数,并结合地质统计插值建立全区域三维岩石力学参数模型是最为常用的方法之一,但是该方法在一定程度上忽略了测井曲线之间的相关性与约束性。实际上,在很多油气勘探区块,岩石力学非均质性强,利用统计学方法建模会产生较大误差。针对以上问题,本文研发了岩石力学参数标定系统,提出利用与岩石力学参数相关性较强的声波时差、自然伽马参数等测井曲线约束初始岩石力学参数模型,从而克服以上缺陷,提高建模精度,并利用数据分块算法顺利实现了对亿级数量网格单元的岩石力学参数模型标定计算。
[Abstract]:Rock mechanics parameter modeling plays an important role in the field stress modeling, dessert prediction and well pattern optimization. It is one of the most commonly used methods to calculate rock mechanics parameters of well points by using conventional logging data and to establish 3D rock mechanics parameter model for the whole region with geostatistical interpolation. However, to some extent, this method ignores the correlation and constraint between logging curves. In fact, in many oil and gas exploration blocks, the heterogeneity of rock mechanics is strong. In order to solve the above problems, a calibration system for rock mechanics parameters is developed in this paper. The initial rock mechanics parameter model is constrained by logging curves such as acoustic moveout and natural gamma parameters, which have strong correlation with rock mechanics parameters. In order to overcome the above shortcomings, improve the modeling accuracy, and the use of data block algorithm to achieve the number of grid elements of rock mechanics parameters model calibration calculation.
【作者单位】：北京大学造山带与地壳演化教育部重点实验室;中国石油勘探开发研究院;
【基金】：国家科技重大专项“大型油气田及煤层气开发”(2016ZX05013005-009)
【分类号】：P631.81;TE311

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