基于动力学的油气资源评价系统及其应用

A Dynamic Petroleum Resources Evaluation System and Its Application

为改变已往的以构造划分为基础的盆地、区带、圈闭评价体系 ,建立基于动力学的盆地、含油气系统、含油气区带、圈闭评价体系 ,在一个商业地理信息系统平台上开发了基于动力学的油气资源评价系统 ,该系统采用 3种方法构造盆地数字模型 (人工井、构造剖面、平面构造图 ) ,通过恢复盆地的地史、热史、成熟史、生烃史、排烃史、运聚史 ,可以完成盆地、含油气系统、区带、圈闭的全系列模拟评价 ,也可以单独进行某一单元的模拟评价。将该系统应用于松辽盆地的油气资源评价取得了良好的效果。

The secondary evaluation of petroleum resources had finished in 1995.Recently,a lot of new theories,methods and technology have come forth, and accumulated a vast amount of new data and gotten some new consequences.It is extremely necessary to sum up all these new theories, new methods, new data and achievements,systematically.Since construction of three oil companies,oil and gas exploration intends to face more competitiveness from home and abroad.For a fast and sustainable development of national oil companies to get more competitive,it should reevaluate all the petroleum resources in all the exploring areas,and realize dynamic evaluation and management,change evaluation system of basin,play and trap on the basis of structure classification and establish the new evaluation system of basin,petroleum system, play and trap on the basis of dynamics.In the commercial GIS platform, on the basis of basin dynamics,an evaluation modeling system of petroleum system(PetroSys)has been developed. PetroSys uses different ways to construct basin numerical model:Man made wells,structure profile and plane structural map.Through the restoration of history of geothermal,maturation,expelling , migration and so on,a series of modeling evaluations,including ones of basin, prtroleum system, play and trap, can be constructed.Of course,it also may model and evaluate these structures respectively.By applying the PetroSys to Songliao Basin,a good result of evaluation of oil and gas resources has been achieved.