摘要
油、气、水层识别与评价是油气勘探开发中至关重要的工作,为此,从探讨应用气测、荧光和岩屑录井资料进行初步定性识别入手,分析了定量判别油、气、水层的常规气测录井解释方法的局限性问题,提出了针对气测录井解释符合率所涉及到的气测数据质量控制和选择有代表性气测数据的方法。给出了应用录井资料综合判别的方法,分析了常规解释方法的选择原则,在三角形图板法的基础上,给出了改进型的Q值法,针对C_2/C_3比值法结合对多口井的统计分析,给出了改进型的判别标准,并联系实践提出了简易参数法。应用这些方法,结合盖层封闭性能评价,对6大类不同性质油、气、水层进行的综合判别实例表明,其符合率较高。
To distinguish and evaluate the oil,gas and water lay- ers is the most important work in oil and gas exploration and development.Thereby,starting from distinguishing in- itially and qualitatively by using gas logging,fluorescence and cutting logging information,the paper analyzed the lim- itation problems to quantitatively distinguish oil,gas and water layers in conventional gas logging interpretation methods,raised the methods involving gas logging interpre- tation coincidence rate that can control the gas logging data quality and choose representative gas logging data.The pa- per gave out the distinguishing method by applying mud logging information comprehensively and analyzed the choo- sing principles for conventional interpretation method.On the basis of triangle chart method,the authors put forward the improved Q value method,and the improved distinguis- hing criterion in view of C_2/C_3 ratio method with the writ- ers'statistic analysis for many wells.Integrating the prac- tice,the paper put forward the simple parameter method. By applying these methods with cap layer seal properties, comprehensively distinguishing six catalogs of oil,gas and water layers of different properties were conducted.The re- suits showed higher coincidence rate.
出处
《录井工程》
2008年第3期1-8,共8页
Mud Logging Engineering
关键词
气测录井
荧光录井
岩屑录井
油气水层
解释
盖层评价
gas logging,fluorescence logging
cutting logging
oil
gas and water layers
interpretation
cap layer interpretation
