超深破碎型地层岩石力学参数的大数据预测模型  

Prediction Model of Rock Mechanics Parameters in Ultra-Deep Fractured Formations Based on Big Data

作　　者：周舟 李犇[2] 耿宇迪[3] 肖锐 ZHOU Zhou;LI Ben;GENG Yudi;XIAO Rui(College of Petroleum Engineering,China University of Petroleum(Beijing),Beijing,102249,China;The No.1 Gas Production Plant,PetroChina Changqing Oilfield Company,Xi’an,Shaanxi,710021,China;Petroleum Engineering Technology Research Institute,Sinopec Northwest Oilfield Company,Urumqi,Xinjiang,830011,China)

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石油长庆油田分公司第一采气厂,陕西西安710021 [3]中国石化西北油田分公司石油工程技术研究院,新疆乌鲁木齐830011

出　　处：《石油钻探技术》2024年第5期91-96,共6页Petroleum Drilling Techniques

摘　　要：超深储层油气资源丰富,是目前油气开发的重点,但是储层岩体破碎和非均质性强,传统的预测储层力学参数方法误差大,对工程设计和施工造成很大的困难。基于大量试验和现场施工数据,分析了储层测井数据、储层裂缝数据、岩石力学数据的相互联系,建立了基于岩石力学性质-地质储层特征-测井解释之间物理关联的多参数约束;开发了多元非线性回归拟合算法模型,形成了超深破碎型储层全储层段岩石力学参数预测模型。该预测模型克服了破碎型地层数据量少导致的计算误差大的难题,能明确全储层段岩石力学参数,与实际工程施工参数相比预测准确度达90%以上。研究结果为超深破碎型地层钻完井安全施工提供了技术支撑。The rich oil and gas resources in ultra-deep reservoirs are the focus of oil and gas development at present.However,due to the high fragmentation and strong heterogeneity of rock mass in reservoirs,the traditional method of predicting reservoir mechanics parameters has a large error,which causes great difficulties in engineering design and operation.Based on a large number of experimental and field operation data,the interrelationship among reservoir logging data,reservoir fracture data,and rock mechanics data was analyzed.A multi-parameter constraint was established based on the physical correlation between rock mechanical properties,geological reservoir characteristics and logging interpretation,and a multivariate nonlinear regression fitting model was developed to predict rock mechanics parameters in the whole reservoir section of ultra-deep fractured reservoirs.The prediction model overcame the problem of large calculation errors caused by small amount of fractured formation data and could determine the rock mechanics parameters in the whole reservoir section.Compared with the actual operation parameters,the prediction accuracy is more than 90%.The research results provide technical support for the safe operation of drilling and completion in ultra-deep fractured formations.

关 键 词：岩石力学 破碎性地层 大数据分析 非线性拟合 数据增广 预测模型 

分 类 号：TE21[石油与天然气工程—油气井工程]