CAJ | 학술논문

巴楚-麦盖提地区是重要的油气聚集区。玉北地区玉北1井在奥陶系鹰山组测试获25．2 m3/d的海相工业油气流。玉北奥陶系油藏与巴什托（普）油气田的原油是否同源是困扰该地区油气勘探并急需解决的问题之一。通过玉北1井、巴什托（普）主要油气藏（田）的原油地球化学特征研究、油-油对比、油源对比等综合分析，并类比塔河奥陶系原油进行了巴楚-麦盖提地区主要油气藏原油地球化学特征及油源探讨分析。综合研究认为玉北地区奥陶系的原油地球化学特征与塔河奥陶系原油相近。通过烃源有机相类比，认为玉北地区奥陶系原油可能来自塔西南地区中下寒武统斜坡相烃源岩；巴什托轻质油推测主要来自盆地-陆棚相寒武系烃源岩，部分来源于海陆交互相石炭系。
파초-맥개제지구시중요적유기취집구。옥북지구옥북1정재오도계응산조측시획25．2 m3/d적해상공업유기류。옥북오도계유장여파십탁（보）유기전적원유시부동원시곤우해지구유기감탐병급수해결적문제지일。통과옥북1정、파십탁（보）주요유기장（전）적원유지구화학특정연구、유-유대비、유원대비등종합분석，병류비탑하오도계원유진행료파초-맥개제지구주요유기장원유지구화학특정급유원탐토분석。종합연구인위옥북지구오도계적원유지구화학특정여탑하오도계원유상근。통과경원유궤상류비，인위옥북지구오도계원유가능래자탑서남지구중하한무통사파상경원암；파십탁경질유추측주요래자분지-륙붕상한무계경원암，부분래원우해륙교호상석탄계。
Bachu-Maigaiti area is an important focus area of oil and gas. In the Ordovician Yingshan Formation in well Yubei 1, industrial oil and gas flows of marine facies have been tested for 25.2 m3/d. It is urgent to solve the problem whether the crude oils from Ordovician of Yubei area and Bashituo oil field are of the same sources. Through the geochemical analysis, oil/oil and oil/source correlations of the crude oils from well Yubei 1 and Bashituo oil field, compared with the Ordovician crude oils from Tahe area, the geochemical characteristics of crude oil and oil source of the main oil-and-gas reservoirs in Bachu-Maigaiti area are discussed. The geochemical features of the Ordovician crude oils from Yubei area are similar to those of the Ordovician crude oils from Tahe area. According to the organic analogy of oil source, the Ordovician crude oils from Yubei area may originate from the Middle and Lower Ordovician source rocks of slope facies in the southwestern Tahe area. The light oils from Bashituo area mainly come from the Cambrian source rocks of basin-shelf facies, and partially from the Car-boniferous source rocks of marine-terrigenous facies.