阜康凹陷三叠系烃源岩生烃潜力评价  

HYDROCARBON POTENTIAL EVALUATION OF TRIASSIC SOURCE ROCK OF FUKANG SAG

作　　者：张小红[1] 杨涛[2] 岳红星[2] 吴建英[2] 邸文渊 ZHANG Xiao-hong;YANG Tao;YUE Hong-xing(Zhundong Oil Production Plant,Xinjiang Oilfield Com-pany,PetroChina,Fukang,Xinjiang,831511,China)

机构地区：[1]中国石油新疆油田分公司准东采油厂勘探开发研究所,新疆阜康831511 [2]中国石油新疆油田分公司准东采油厂,新疆阜康831511

出　　处：《新疆石油天然气》2020年第3期17-20,I0001,I0002,共6页Xinjiang Oil & Gas

摘　　要：侏罗系、二叠系和石炭系是准噶尔盆地东部探区得到公认的三套有效烃源岩,而阜康凹陷三叠系小泉沟群原油性质多样,油-源关系复杂,能否成为准东探区的有效源岩尚存争议。本次系统评价了该套地层的生油潜力,认为其有机质丰度较高,存在好-较好烃源岩,有机质类型相对较好、在热史演化上已达到生油门限,是一套较好的烃源岩。小泉沟群烃源岩具有较低的姥植比,β胡萝卜烷和γ蜡烷含量很低,均表明该套烃源岩沉积于弱氧化的湖沼相中。该套烃源岩是继侏罗系、二叠系和石炭系之后阜康凹陷发现的又一套较好的烃源岩,该烃源岩的发现对阜康凹陷及其周缘油气勘探具有十分重要的意义。It is generally acknowledged that there are three series of hydrocarbon source rocks in Jurassic,Permian and Carboniferous formations in the east of Junggar Basin.A great quantity of oil whether from the Xiaoquangou Group of Triassic or not is not confirmed in Fukang Sag.However,no agreement has been reached on whether the Xiaoquangou Group of Triassic in Zhundong exploration area is effective hydrocarbon source rocks.This system to evaluate the genetic potential of the strata,think its high abundance of organic matter,there is goodeven better hydrocarbon source rocks,organic matter type is relatively good,on the thermal history evolution has reached oil threshold,is a set of good hydrocarbon source rocks.Mr Koizumi groove group of hydrocarbon source rocks have lower than basking plants,beta,carrot alkanes and gamma paraffin wax content is low,all show that the set of hydrocarbon source rocks deposited on weak oxidizing limnetic phase.The sets of hydrocarbon source rock in Jurassic,Permian and carboniferous fukang sag is found and a set of good hydrocarbon source rocks and the discovery of the hydrocarbon source rocks of Fukang sag and its peripheral oil and gas exploration is of great significance.

关 键 词：阜康凹陷 三叠系 烃源岩 生油潜力 姥植比 油气勘探 

分 类 号：TE122.1[石油与天然气工程—油气勘探]