FACIES DISTRIBUTION PATTERN OF DAMOGUAIHE FORMATION IN TARBELL DEPRESSION
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摘要: 以岩心、测井、地震、岩石薄片、分析化验等资料为基础,通过对研究区内的岩性特征、测井曲线形态及沉积微相特征分析,对塔贝尔凹陷的沉积相进行了研究。塔贝尔凹陷大磨拐河组主要发育扇三角洲、三角洲、湖底扇和湖泊沉积体系,其中三角洲-湖泊沉积体系是研究区内最为发育的沉积体系类型。综合利用地震属性分析、砂岩百分含量、重矿物等资料,对塔贝尔凹陷的沉积体系平面展布进行了初步的预测。这有助于在更深层次上研究大磨拐河组的储层特征与展布、油气富集规律、圈闭的成藏机理,并为油气勘探提供依据。Abstract: Facies analysis had been carried out in the Tarbell Depression based on lithology, logging curves and sedimentary microfacies. Various depositional systems, such as the fan-delta, delta, lake floor fan and lacustrine systems were observed in the Damoguaihe Formation. According to seismic attributes, sandstone percentage, heavy minerals etc., preliminary prediction of the distribution pattern of the depositional systems was made. The results have been proved helpful in further research on reservoir characteristics and distribution, oil and gas accumulation, traps forming in the Damoguaihe Formation and paved the way for further exploration and development of oil and gas.
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Key words:
- Tarbell Depression /
- Damoguaihe Formation /
- sedimentary system /
- sand distribution
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