勘探效益法预测油气资源的原理及应用

Exploration Benefit Method Principle and Its Application in the Prediction of Oil and Gas Resources

随着油气勘探的深入、勘探程度的不断提高,未发现的剩余油气资源不断降低。如何准确预测高勘探程度-成熟探区的剩余油气资源,成为石油投资者和油气资源评价工作者关注的焦点。在详细探讨勘探效益法预测油气资源的原理、方法、操作流程及存在的问题的基础上,运用勘探效益法对苏北盆地高邮凹陷的剩余可探明储量进行了预测。研究表明,高邮凹陷的剩余可探明储量约为6 773×104t,仍具有一定的勘探潜力;实践证明,由于勘探效益法合理回避了油气成因的机理问题,减少了资源评价工作中人为因素的影响,使资源评价的结果更为客观。

As the oil and gas exploration advances, more and more oil and gas resources are discovered and the uncovered oil and gas resources underground are less and less. How to predict the exact oil and gas resources in the mature exploration area is the focus of the petroleum investors and the oil and gas resources evaluation workers. This paper discusses at length the principles of the exploration benefit method and its application and problem in oil and gas resources evaluation. Its application in Gaoyou Sag of Subei Basin shows that the oil and gas reserve uncovered in the Gaoyou Sag is about 6 773×104 t. The operating practice of the exploration benefit method proves that the exploration benefit method slides over the problem of oil and gas genetic mechanism in reason and reduces the subjective impact on oil and gas resources evaluation effectively, which makes the results of oil and gas resources evaluation more objective.