石油勘探与开发
石油勘探與開髮
석유감탐여개발
PETROLEUM EXPLORATION AND DEVELOPMENT
2001年
2期
29-32
,共4页
袁先春%赵新国%刘小红%孙青%赵云峰
袁先春%趙新國%劉小紅%孫青%趙雲峰
원선춘%조신국%류소홍%손청%조운봉
古潜山%油气藏形成%模式%生油层%储集层%东濮凹陷
古潛山%油氣藏形成%模式%生油層%儲集層%東濮凹陷
고잠산%유기장형성%모식%생유층%저집층%동복요함
东濮凹陷古潜山含油层系多,于太古界、下古生界、上古生界和中生界都有含油层系分布,发育下第三系和上古生界两套烃源岩。根据烃源供给方式的差异,可将潜山成藏模式分为新生古储、古生古储、多源古储和多源中储4种类型,其分布范围广,经多年勘探,在各类潜山中都见到较好的油气显示,表明东濮凹陷潜山勘探具有良好前景。但多年勘探未获突破,究其原因,除地质条件外,钻探中系统工程不配套也是制约古潜山油气藏及早发现的重要因素。图3表1参1 (袁先春摘)
東濮凹陷古潛山含油層繫多,于太古界、下古生界、上古生界和中生界都有含油層繫分佈,髮育下第三繫和上古生界兩套烴源巖。根據烴源供給方式的差異,可將潛山成藏模式分為新生古儲、古生古儲、多源古儲和多源中儲4種類型,其分佈範圍廣,經多年勘探,在各類潛山中都見到較好的油氣顯示,錶明東濮凹陷潛山勘探具有良好前景。但多年勘探未穫突破,究其原因,除地質條件外,鑽探中繫統工程不配套也是製約古潛山油氣藏及早髮現的重要因素。圖3錶1參1 (袁先春摘)
동복요함고잠산함유층계다,우태고계、하고생계、상고생계화중생계도유함유층계분포,발육하제삼계화상고생계량투경원암。근거경원공급방식적차이,가장잠산성장모식분위신생고저、고생고저、다원고저화다원중저4충류형,기분포범위엄,경다년감탐,재각류잠산중도견도교호적유기현시,표명동복요함잠산감탐구유량호전경。단다년감탐미획돌파,구기원인,제지질조건외,찬탐중계통공정불배투야시제약고잠산유기장급조발현적중요인소。도3표1삼1 (원선춘적)
Buried hills in Dongpu sag consist of many oil bearing strata, which distribute in the Archaeozoic, Lower Palaeozoic, Upper Palaeozoic and Mesozoic. There are two sets of source rock in the Palaeogene and the Upper Palaeozoic. According to the different ways of hydrocarbon supplying, formation models of beried hill type pools can be divided into four types: accumulated in the Palaeozoic with a Cenozoic origin, generated and accumulated in the Palaeozoic, accumulated in the Palaeozoic with a multisource origin, and accumulated in the Mesonic with a multisource origin. Buried hills can be found in a large scope, and better oil and gas shows have been acquired in all kinds of burried hills through many years exploration in the past,which shows a good prospect in explorating buried hill type pools in Dongpu sag.However,up to now any great discovery has not been achieved.The authors hold that the reason why so far the buried hill reservoirs have not been discovered is that there is no a complete set of drilling engineering technologies,except for geological conditions