油气资源潜力浅表地球化学评价
Surface geochemical assessment for petroleum resources potential
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摘要: 运用地球化学方法评价油气资源潜力是盆地勘查阶段的战略问题之一。选择羌塘盆地托纳木区块进行油气资源潜力浅表地球化学评价的理论和方法研究。总结了油气保存条件的地球化学特征，提出了区域地球化学场结构能系数的新概念，定量表征油气运移过程中组分分异强度，研究了预测油气远景靶区的GIS技术。研究结果表明，油气地球化学勘查可以为油气资源潜力评价提供重要的浅表地球化学信息。Abstract: Geochemical assessment of petroleum resource potential in a basin is one of the strategic problem,The study area is in Tuonamu region which is a promising area in the Qiangtang basin.This paper focuses on the surface geochemical exploration theories and methods in assessment of petroleum resource potential,We summarized some geochemical characters of preservation condition of petroleum.A new concept of structure energy coefficient in regional geochemical fields was put forward to calculate intension of composition differentiation in hydrocarbon migration.The GIS technique was used for predicting petroleum targets in study area.Our restdts show that surface geochemical exploration provides important geochemistry information in assessment of petroleum resource potential.
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