岩石物理模型在普光须家河组有效储层评价中的应用

Application of rock?鄄physics model in effective reservoir evaluation in Xujiahe Formation, Puguang gas field

 刘红磊¹ 徐卫东² 吴寒春³ 陈岑¹ 成群⁴ 刘欣⁵

中国石化中原油田分公司勘探开发研究院，河南 郑州 450000 中国石化中原油田分公司科技部，河南 濮阳 457001 中国石化中原油田分公司采油一厂，河南 濮阳 457171 中国石油大庆油田有限责任公司第三采油厂，黑龙江 大庆 163000 中国石化中原油田普光分公司，四川 达州 635000）

Research Institute of Exploration and Development, Zhongyuan Oilfield Company, SINOPEC, Zhengzhou 450000, China Department of Science and Technology, Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, China No.1 Oil Production Plant, Zhongyuan Oilfield Company, SINOPEC, Puyang 457171, China No.3 Oil Production Plant, Daqing Oilfield Company Ltd., PetroChina, Daqing 163000, China Puguang Branch, Zhongyuan Oilfield Company, SINOPEC, Dazhou 635000, China)

 普光东洼陆相须家河组作为普光气田资源接替区，勘探潜力巨大。须家河组储层具有典型的低孔、超低渗、单层厚度薄、非均质性强的地质特征，储层定量识别难度大。为了进一步落实须家河组致密砂岩气藏储量与产能规模，需开展有效储层的精确评价。通过对测井曲线质控、地层综合解释、储层分类及弹性曲线拟合，确定本地区模型参数，建立了识别不同类别储层与非储层的岩石物理解释量版，为后续地震反演方法的优选及不同类别储层的定量解释提供了可靠依据。

Xujiahe Formation of east Puguang Depression is an important resource substitute area for Puguang gas field, with a huge potential exploration. Because of the low porosity, super-low permeability, thin thickness and serious heterogeneity in Xujiahe Formation, it is difficult to quantitatively identify the reservoir. In order to further study the reserves and productivity scale of the tight sandstone gas reservoir in Xujiahe Formation, it is necessary to assess the effective reservoir. Based on log data quality control, comprehensive interpretation of formation, reservoir classification and elastic curve fitting, model parameters of this area were determined and explained. Rock-physics version which is used to identify the different types of reservoir and non?鄄reservoir was also established, which provides some guidance and basis for the method selection of seismic inversion and the quantitative interpretation of different types of reservoirs.

10.6056/dkyqt201603007