摘要
随着油气勘探开发的不断深入,地下油气储层的地应力分析也越来越受到重视。在油气勘探开发的过程中,诸如油气的运移、钻井过程中井壁的稳定性、采油过程的出砂、注水开发中的井网布置与调整、储层裂缝的发育状况等均与地应力有十分密切的关系。测井资料具有数据丰富、成本低、数据连续的优点,通过优选适当的模型,可以利用测井资料计算岩石的地应力大小。在利用测井资料计算地应力的基础上,根据Kaiser实验及现场水力压裂资料对计算的水平最大、最小主应力进行标定,建立了标定后的地应力计算模型。通过实际资料的计算与检验,证明了经刻度后的地应力模型更能真实反映实际地应力大小。
Crustal stress is closely combined with oil and gas exploratory and development, ence the oil and gas exploratory and development in all aspects. For example, crustal stress will in addition it influ- influence the transport of oil and gas, the stability of borehole wall in the process of drilling, the sand production of oil extraction process, as well as the arrangement and adjustment of well pattern developed by water flooding. Logging has the advantages of long measuring depth, low cost and continuous data. By using the data of sonic logging and density logging, the formation pore pressure and rock mechanical parameters, and determine the calculation model for crustal stress then calculate it are calculated. What＇ s more, according to the Kaiser experiments and the data of hydraulic fracturing, the horizontal direction maximum and minimum crustal stress so that the value can actually reflect the true crustal stress are calibrated.
出处
《科学技术与工程》
北大核心
2015年第17期42-46,共5页
Science Technology and Engineering
基金
国家"十二五"重大专项(2011ZX05013-006)资助
关键词
地应力
标定
测井
水力压裂
Kaiser实验
crustal stress calibration logging hydraulic fracturing Kaiser experiment
