孤家子—八屋气田气藏精细描述研究
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摘要
文章通过对孤家子—八屋气田的三维地震、测井、测试、生产数据解释与综合分析,精细描述该气田的地质特征,建立气藏的地质模型。利用三维地震资料精细解释研究气藏的构造面貌及断层组构、地层展布、圈闭要素及对气藏的控制作用;利用波阻抗反演技术获得目的层段的波阻抗、泥质含量预测储层的空间展布;通过测井解释技术建立适合本区的测井解释模型,建立识别气层的有效厚度下限标准并对各井目的层段进行气层识别与评价;根据测井解释成果利用储层建模技术建立主要储层段孔、渗、饱等参数模型,并研究储层非均质性;在总结气藏地质模型和流体分布规律的基础上,研究本区气藏形成模式、控制因素及天然气富集区块,提出本区进一步勘探开发部署建议。
Through comprehensively interpreting and analyzing the data on 3——D seismics, log, test and production performance of Gujiazi-Bawu gas field, the fine description of geological characteristics of the field was carried out and a geological model of gas reservoir was set up. The structural conditions, fault assemblage, stratigraphic distribution and trap elements of the gas reservoir and their control effects on gas reservoir formation were investigated by applying the fine interpretation results of 3—Dseismic data; the spacial distribution of the reservoir was predicted according to the target zone’s impedance data and shale content achieved by impedance inversion technique; the target zones in various wells were identified and evaluated on the basis of setting up the log interpretation model suitable to the field and of determining the cutoff value of net pay thickness of distinguishing gas reservoir; the parameter models of the porosity, permeability and saturation of the main reservoirs were established by applying the reservoir modeling technique in light of the log intepretation results; and the reservoir heterogeneity was studied also. On the basis of summarizing the gas reservoir geological model and fluid occurrence, some suggestions on the further exploration and development disposition are put forward in the paper in consideration of the gas reservoir formation pattern, its control factors and gas enrichment areas in the field.
Through comprehensively interpreting and analyzing the data on 3——D seismics, log, test and production performance of Gujiazi-Bawu gas field, the fine description of geological characteristics of the field was carried out and a geological model of gas reservoir was set up. The structural conditions, fault assemblage, stratigraphic distribution and trap elements of the gas reservoir and their control effects on gas reservoir formation were investigated by applying the fine interpretation results of 3—Dseismic data; the spacial distribution of the reservoir was predicted according to the target zone’s impedance data and shale content achieved by impedance inversion technique; the target zones in various wells were identified and evaluated on the basis of setting up the log interpretation model suitable to the field and of determining the cutoff value of net pay thickness of distinguishing gas reservoir; the parameter models of the porosity, permeability and saturation of the main reservoirs were established by applying the reservoir modeling technique in light of the log intepretation results; and the reservoir heterogeneity was studied also. On the basis of summarizing the gas reservoir geological model and fluid occurrence, some suggestions on the further exploration and development disposition are put forward in the paper in consideration of the gas reservoir formation pattern, its control factors and gas enrichment areas in the field.
引文
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2 吴胜和,熊琦华.油气储层地质学.北京:石油工业出版社,1998
3 张玉明,夏响华等.松辽盆地南部低渗透油气田勘探技术.北京:石油工业出版社,2001
4 于兴河,郑浚茂等.构造、沉积与成岩综合一体化模式的建立—以松南梨树地区后五家户气田为例.沉积学报,1997
5 王永春.松辽盆地南部岩性油气藏的形成和分布.北京:石油工业出版社,2001
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