Pathway tracing of crude oil filling in Fuyang oil layer, Wangfu Sag, Songliao Basin
-
摘要: 基于砂岩油藏充注模式,通过研究油藏内部原油成熟度的微细变化,依据成熟度参数的等值线可以示踪油藏充注的过程,成熟度参数等值线向前最为凸出的部位是石油运移/充注的优势途径。通过研究各项饱和烃成熟度参数,筛选出三环萜烷/17α(H)-C30藿烷,Ts/(Ts+Tm),C30重排藿烷/17α(H)-C30藿烷,C29甾烷ββ/(ββ+αα)等4项不受其他地质因素影响的参数,用于王府凹陷扶杨油层原油运移/充注途径的研究。通过17件扶杨油层原油的研究表明,所有参数均反映出王府凹陷原油成熟度分布规律一致,双32井为原油充注点,其离烃源灶最近;研究区内存在3条优势运移/充注途径,一是自双32井往北东方向充注至双26—双301—双31井区;二是自双32井处,经双38井,往北西西方向充注至长64—长11—长17井区;三是自双32井往北西方向充注至双231—双23井区。Abstract: Based on the filling pattern of sandstone reservoir,according to the minor variation of crude oil maturity in reservoir,the filling pathway has been traced with maturity contour.The peak of maturity contour refers to the advanced pathway for petroleum migration and filling.4 parameters which are not influenced by other geologic factors have been chosen in the studies of petroleum migration and filling pathway in Fuyang oil layer,Wangfu Sag,including tricyclic terpanes/17α(H)-C30 hopanes ratio,Ts/(Ts+Tm) ratio,C29 sterane ββ/(ββ+αα) ratio,and C30 diahopanes/17α(H)-C30 hopanes ratio.17 samples from Fuyang oil layer have been analyzed,indicating that crude oil maturities all over the Wangfu Sag have the same feature.Well Shuang 32 is the filling point which is close to source kitchen.There are 3 advanced migration and filling pathways in the study region: 1)from well Shuang32 to well Shuang26—Shuang301—Shuang31 in NE direction;2)from well Shuang32,crossing well Shuang38,to well Chang64—Chang11—Chang17 in NWW direction;3)from well Shuang32 to well Shuang231—Shuang23 in NW direction.
-
Key words:
- maturity /
- petroleum migration /
- Fuyang oil layer /
- Wangfu Sag /
- Songliao Basin
-
[1] 黄福堂,冯子辉.松辽盆地王府凹陷油气水地化特征与油源对比[J].石油勘探与开发,1996,23(6):28-33. [2] 郭英海,李壮福,李熙哲,等.松辽盆地王府凹陷的沉积充填及生储盖组合[J].中国矿业大学学报(自然科学版),2001,30(1):30-34. [3] 杨喜贵,付广.松辽盆地北部扶杨油层油气成藏与分布的主控因素[J].特种油气藏,2002,9(2):8-12. [4] 王杰,王铁冠,陈践发,等.松辽盆地双城—太平川地区烃源岩生烃潜力评价[J].矿物岩石,2006,26(3):100-106. [5] 陈昭年,王永卓,王小敏.松辽盆地朝长地区扶杨油层油气运移模式[J].断块油气田,2009,16(6):22-24. [6] 王杰,刘文汇,王铁冠,等.松辽盆地双城—太平川地区油—岩地球化学特征及油源对比研究[J].石油实验地质,2009,31(5):506-511. [7] 李贤庆,侯读杰,肖贤明,等.应用含氮化合物探讨油气运移和注入方向[J].石油实验地质,2004,26(2):200-205. [8] England W A,Mackenzie A S,Mann D M,et al.The movement and entrapment of petroleum fluids in the subsurface[J].J Geol Soc,1987,144(2):327-347. [9] England W A,Mackenzic A S.Geochemistry of petroleum reservoirs[J].Geol Rundsch,1989,78:214-237. [10] Wang Tieguan,He Faqi,Li Meijun,et al.Alkyldibenzothiophenes:molecular tracers for filling pathway in oil reservoirs[J].Chinese Science Bulletin,2004,49(22):2399-2404. [11] Karlsen D A,Larter S.Analysis of petroleum frations by TLC-FID:applications to petroleum reservoir description[J].Org Geochem,1991,17(5):603-617. [12] Li Meijun,Wang Tieguan,LiuJu,et al.Total alkyl dibenzothiophenes content tracing the filling pathway of condensate reservoir in the Fushan Depression,South China Sea[J].Sci China Ser D-Earth Sci,2008,51(SⅡ):138-145. [13] Seifert W K,Moldowan J M.Use of biological markers in petroleum exploration[M] //Methods in Geochemistry and Geophysics.New York:Elsevier,1986:261-290. [14] 蒋兴超,王铁冠,冯子辉,等.王府凹陷及其周缘地区中浅层原油地球化学特征[J].新疆石油地质,2007,28(1):40-43. [15] Seifert W K,Moldowan J M.Applications of steranes,terpanes,and monoaromatics to the maturation,migration,and source of crude oils[J].Geochimica et Cosmochimica Acta,1978,42:77-95. [16] Peters K E,Moldowan J M.生物标记化合物指南[M].姜乃煌,张水昌,译.北京:石油工业出版社,1995. [17] Peters K E,Walters C C,Moldowan J M.The Biomarker Guide:Volume 2,Biomarkers and Isotopes in Petroleum Systems and Earth History[M].Cambridge:Cambridge University Press,2004. [18] Moldowan J M,Fago F J,Carlson R M K,et al.Rearranged hopanes in sediments and petroleum[J].Geochim Cosmochim Acta,1991,55(11):3333-3353.
点击查看大图
计量
- 文章访问数: 3200
- HTML全文浏览量: 22
- PDF下载量: 839
- 被引次数: 0