摘要
从石油地质风险、体积因素和可采因素分析着手,制定了参数概率的取值标准,用概率连乘获得地质非风险概率值和可采因素概率值。用蒙特卡洛统计方法进行资源量计算。用综合排队系数 R(?)对45个圈闭进行排队,对它们叠合的23个构造进行地质风险、储量大小和可采因素的综合分析,结果认为:丘陵构造最佳,接着依次是胜金口、红山、台北和葡南构造。
In recent years,hydrocarbon exploration in Turpan Depression,Xinjiang hasobtained gratifying achievements.Three oil fields—Shanshan,Yilahu and Qiuling werediscovered in succession.Turpan Depression,covering 28600 km^2,filled with Late Paleozoic and Meso-Cenozoic sediments.The deepest is Taibei subdepression with more than 9000m thick sedi-mentary rocks.The region experienced back-arc basin stage(D-P_1),transitional basinstage(P_2-T),intermountain basin stage(J-K)and foreland basin stage(E-Pre.).TheTriassic and Jurassic sediments are not only the main source rocks of hydrocarbon,butalso important producing formations.Up to now,52 local structures have been recognized by outcrop inspection andseismic exploration.45 traps(in different target beds)contained in 23 subtle structureswere studied and analyzed with trap assessment method,thus setting up the parametricprobabilistic standards of geological risk,volume coefficient and recovery factor,then theprobabilistic values of geological nonrisk and recovery factor as well as the Potential re-serves were calculated with multiplication and Montecarlo method respectively.Finally,these traps were arranged in order with R_a(multiple index for trap arrangement)and 23structures were analyzed with comprehensive arrangement factor.The result shows thatthe most favourable structures for hydrocarbon exploration is Qiuling structure,then suc-cessively Shengjintai,Shengjinkou,Hongshan,Taibei and Punan structures.This predic-tion has been proved by discovery drilling in Qiuling and Taibei structures(shanshan oil-field).
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
1992年第2期191-200,共10页
Oil & Gas Geology
