第37卷第5期 2016年10月
文章编号：1001-3873(2016)05-0524-06
新疆石油地
质
XINJIANG PETROLEUM GEOLOGY DOI:10.7657/XJPG20160505
Vol.37,No.5 Oct.2016
应用定量颗粒荧光恢复莫索湾凸起罗系油气充注史
麻伟娇"，王然”，王峰”，李秀丽3
（1.中国石油勘探开发研究院，北京100083；2.中国石油新疆油田分公司勘探开发研究院，新疆克拉玛依834000；
3.中国石油集团盆地构造与油气成藏重点实验室，北京100083）
要：准噶尔盒地腹部莫索湾凸起，在白垩纪处于构造背斜的高部位，是油气运聚的有利指向区，然而目前很少证摘
据证明莫索湾凸起曾经聚集古油藏。远取准喝尔垒地莫索湾凸起盐参2并区典型探井莫深1并，通过定量颗粒荧光
次，恢复了盆参2井区油气藏复杂的充注过程。
结果表明，
工河组二段在白纪存在古油藏，油水界面深度
为4456m，古近纪末喜马拉雅运动使古油藏泄漏，油水界面深度上升至4412m，而在新近纪，保罗系烃源岩再次充注油气，导致现今油水界面深度为4440m，低于古近纪油水界面，同时还使没有古油蔗的三工河组一段砂体聚集了油气。研究结果为莫案湾凸起三工河组油藏成藏史研究提供了新的证据。
关键词：准噶尔盘地；莫索湾凸起；三工河组；定量颗粒荧光；油气成藏期次；充注历史
中图分类号：TE112.12
文献标识码：A
Applicationof QuantitativeGrainFluorescenceTechniqueinRestorationof Hydrocarbon
ChargingHistoryofJurassicReservoirsinMosuowanSwell,JunggarBasin
MA Weijiao', WANG Ran', WANG Feng, LI Xiuli'3
(1.Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China
2.Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China;
3.Key Laboratory of Basin Structure and Hydrocarbon Accumulation, CNPC, Beijing 100083, China)
Abstract: Mosuowan swell in the hinterland of Junggar basin which was located in the high position of the structural anticline during Creta ceous is the favorable area for hydrocarbon migration and accumulation. But little evidence can prove the hydrocarbon accumulation in the paleo-reservoir in Mosuowan swell., This paper selectes the typical exploration Well Moshen-1 in the Wellblock Pencan-2 in Mosuowan swell of Junggar basin, correlates and analyzes 25 cutting samples from the Sangonghe formation of Lower Jurassic in detail using quantita eioaeaoaaareoaaaaaasoe study of log data, structural development, hydrocarbon generation and expulsion history and hydrocarbon accumulation periods. The results show that paleo-reservoir occured in the second member of Sangonghe formation during Cretaceous with the water-oil contact (WOC) at 4 456 m in depth. Himalayan movement resulted in the leakage of the paleo-reservoir at the end of Paleogene and the WOC rose to 4 412 m. In Neogene, Jurassic source rocks charged with oil and gas again resulted in the present WOC at 4 440 m in depth (lower than WOC of the Paleogene) and allowing oil and gas accumulation to appear in sand bodies of the first member of Sangonghe formation under the condi-tions of no paleoreservoirs. The research result provides new evidence for the study on hydrocarbon aceumulation history of Sangonghe for-mation inMosuowan swell.
Keywords: Junggar basin; Mosuowan swell; Sangonghe formation; quantitative grain fluorescence technique; hydrocarbon accumulation
period; charging history
准噶尔盆地腹部地区勘探面积大，剩余资源量丰富，勘探前景广阔。莫索湾凸起紧邻盆1井西、阜康、沙湾3大生烃凹陷，烃源岩条件充足；下侏罗统三工河组砂体发育，且侏罗纪晚期发育古隆起，可形成 980km的圈闭，是有利的油气聚集区"-2。莫索湾凸起油气藏具有“多源、多期、多类型、次生成藏”的特点3-}，成藏过程复杂，现今油藏多为古油藏调整次生
收稿日期：2016-04-17
修订日期：2016-07-25
基金项目：中国石油科技重大专项（2016B-0301-01）
的结果。因此识别古油藏，恢复古油藏后期破坏和调整过程，对准噶尔盆地腹部的油气勘探至关重要。
在油气勘探过程中，判断和评价油层的技术主要有荧光技术、测并解释技术、油包裹体颗粒指数技术等-",其中，荧光测定、测井解释结果易受钻井液污染的影响，灵敏度有限，不能检测吸附在颗粒表面和颗粒内部包裹体中的油；油包裹体颗粒指数技术仅能检
作者简介：麻伟娇（1991-），女，河南长坦人，硕士研究生，油气成藏，（Tel)010-83592164(E-mail)maweijiao_cug@126.com 万方数据