吉林大学学报(地球科学版)
吉林大學學報(地毬科學版)
길림대학학보(지구과학판)
Journal of Jilin University (Earth Science Edition)
2015年
6期
1620-1630
,共11页
熊德明%张明峰%吴陈君%妥进才
熊德明%張明峰%吳陳君%妥進纔
웅덕명%장명봉%오진군%타진재
低熟气%模糊层次分析方法%有效低熟气源岩%低熟气源岩影响因素%气源岩评价模型%乌连戈伊气田
低熟氣%模糊層次分析方法%有效低熟氣源巖%低熟氣源巖影響因素%氣源巖評價模型%烏連戈伊氣田
저숙기%모호층차분석방법%유효저숙기원암%저숙기원암영향인소%기원암평개모형%오련과이기전
low-mature gases%fuzzy analytic hierarchy process%low-mature gas source rocks%influence factor of gas source rocks%evaluation model of gas source rocks%Urengoy gas field
在特定地质背景下,低熟气可以聚集成藏。由于沉积盆地的古环境、母质类型及有机质演化程度的不同,仅以低熟气源岩物理化学性质为侧重点的烃源岩评价方法很难对不同沉积盆地中的烃源岩的生烃潜力进行相对优劣排序。因此,为了快速有效评价低熟气源岩的生烃潜力,分析了 w (TOC)、IH 、w(“A”)等10个因素对气源岩生气能力的影响,建立有效低熟气源岩评价指标体系。并运用层次分析法和模糊数学,建立低熟气源岩生烃潜力评价模型。应用此模型对乌连戈伊气田进行了生烃潜力评价,评价结果表明:Achimov 气藏、Bazhenov 气藏、Vasyugan 气藏、Pokur 气藏烃源岩是低熟气源岩;Neocomian 气藏和 Tyumen 气藏烃源岩介于低熟气源岩和常规气源岩之间;Tampey 气藏烃源岩属于常规气源岩。这与Galimov 所得结论是完全吻合的,说明模型的评价结果是可靠的,可以实现低熟气源岩的综合评价,值得推广应用。
在特定地質揹景下,低熟氣可以聚集成藏。由于沉積盆地的古環境、母質類型及有機質縯化程度的不同,僅以低熟氣源巖物理化學性質為側重點的烴源巖評價方法很難對不同沉積盆地中的烴源巖的生烴潛力進行相對優劣排序。因此,為瞭快速有效評價低熟氣源巖的生烴潛力,分析瞭 w (TOC)、IH 、w(“A”)等10箇因素對氣源巖生氣能力的影響,建立有效低熟氣源巖評價指標體繫。併運用層次分析法和模糊數學,建立低熟氣源巖生烴潛力評價模型。應用此模型對烏連戈伊氣田進行瞭生烴潛力評價,評價結果錶明:Achimov 氣藏、Bazhenov 氣藏、Vasyugan 氣藏、Pokur 氣藏烴源巖是低熟氣源巖;Neocomian 氣藏和 Tyumen 氣藏烴源巖介于低熟氣源巖和常規氣源巖之間;Tampey 氣藏烴源巖屬于常規氣源巖。這與Galimov 所得結論是完全吻閤的,說明模型的評價結果是可靠的,可以實現低熟氣源巖的綜閤評價,值得推廣應用。
재특정지질배경하,저숙기가이취집성장。유우침적분지적고배경、모질류형급유궤질연화정도적불동,부이저숙기원암물이화학성질위측중점적경원암평개방법흔난대불동침적분지중적경원암적생경잠력진행상대우렬배서。인차,위료쾌속유효평개저숙기원암적생경잠력,분석료 w (TOC)、IH 、w(“A”)등10개인소대기원암생기능력적영향,건립유효저숙기원암평개지표체계。병운용층차분석법화모호수학,건립저숙기원암생경잠력평개모형。응용차모형대오련과이기전진행료생경잠력평개,평개결과표명:Achimov 기장、Bazhenov 기장、Vasyugan 기장、Pokur 기장경원암시저숙기원암;Neocomian 기장화 Tyumen 기장경원암개우저숙기원암화상규기원암지간;Tampey 기장경원암속우상규기원암。저여Galimov 소득결론시완전문합적,설명모형적평개결과시가고적,가이실현저숙기원암적종합평개,치득추엄응용。
Under certain geological conditions ,low‐mature gas can accumulate to a gas reservoir .In the past ,the evaluation of terrestrial low‐mature gas source rock was only focused on the study of the physical and chemical properties . Due to the limitation of the current exploration and analyzing techniques ,it is difficult to objectively evaluate the potential of the low‐mature gas source rocks and their relative merits as source rocks . After reviewing the current research status of terrestrial low ‐mature gas source rocks , we build a new evaluation index system through analyzing 10 influencing factors and the range of each parameter .Based on the above ,we build a new evaluation model for the terrestrial low‐mature gas source rock by fuzzy analytic hierarchy process (AHP ) . With this new evaluation model ,we can avoid the paradox in the evaluation of the low‐mature gas source rocks and the blindness of selecting parameters ;also we can improve the evaluation efficiency .The evaluation results agree with the analysis in Urengoy gas field .Based on the evaluation ,the source rocks of Achimov , Bazhenov ,Vasyugan ,and Pokur are low‐mature ;Neocomian’s and Tyumen’s are in between of low‐mature and mature ;while Tampey’ s is mature . The method is provedto be practical and reliable in application .