论文部分内容阅读
由于火山岩储层岩性多样、非均质性强、油气藏类型复杂,导致了储量评价难度大,故储量参数的准确计算至关重要。针对火山岩骨架参数不确定的特殊性,综合岩心、薄片、元素分析和测井等资料,采取了组分与结构识别相结合、常规测井和特殊测井相结合的岩性识别思路,应用多种方法开展了火山岩的岩性测井识别研究,在岩性识别的基础上应用岩心分析、测井资料和试气成果建立了松辽盆地徐深气田储量参数计算模型,最后再用综合分析的方法进行取值,降低了储量计算的风险。使用该方法,火山岩岩性识别符合率在85%以上,储量参数精度超过80%,能够满足储量规范要求,对火山岩油气藏储量评价具有指导意义。
Due to the diversity of lithology, strong heterogeneity and complexity of reservoir types in volcanic reservoirs, it is very difficult to evaluate reserves. Therefore, accurate calculation of reserves parameters is of great importance. Aiming at the particularity of uncertainty of volcanic skeleton parameters, taking the combination of core, thin slice, elemental analysis and logging data, taking the combination of component and structure identification, combining lithology identification with conventional well logging and special logging, Based on the identification of lithology, core calculation, logging data and test results were used to establish the calculation model of reserves parameters of Xushen gas field in Songliao Basin. Finally, with comprehensive analysis Method to take value, reducing the risk of reserves calculation. Using this method, the coincidence rate of volcanic lithology identification is more than 85% and the accuracy of reserves parameter is more than 80%, which can meet the requirements of reserves specification and is instructive for the evaluation of volcanic reservoir reserves.