The gas of QHD30 1 is mixed gas and mainly from the coal derived gas from pre Tertiary source rocks.
QHD3 01气藏的天然气属多源混合气，主气源为前第三系的煤成气。
So compaction is not the main mechanism of hydrocarbon expulsion of the Low Tertiary source rocks in the Dongying Depression.
因此，压实排烃不是东营凹陷下第三系烃源岩排烃的主要机制。
The natural gas of the main type in North China Basin is generated in the symbiotic window of oil and gas in Lower Tertiary source rocks.
华北盆地天然气的主要类型是下第三系源岩在油气共生窗中生成的。
So the migration related to fractures is the main mechanism of hydrocarbon expulsion of the Low Tertiary source rocks in the Dongying Depression.
因此，与裂缝相关的油气运移机制是东营凹陷下第三系烃源岩排烃的主要机制。
In west Qaidm Basin, 17 oilfields with Tertiary source rocks have been found. The main source rocks are Lower Ganchaigou Formation of terrestrial facies of Eocene.
柴达木盆地西部已找到17个第三系油源的油田，其主要烃源岩层位是陆相始新统下干柴沟组。
But the level of maturity of organic matter in the source rocks is obviously lower, because the lower tertiary source beds are of shallower burial and smaller geothermal gradient.
但由于生油层埋藏较浅，地温梯度偏低，致使各生油层有机质的成熟度明显比好生油凹陷低，主要生油层目前仍处于低成熟—成熟演化阶段。
By using a new method and pyrolysis date of rock, study on expulsion efficiency of hydrocarbon for lower tertiary source rock has been carried out in north area of lower Dongpu Depression.
利用岩石热解资料，采用一种新的方法，对东濮凹陷北部地区下第三系源岩的排烃效率进行了研究。
On the basis of geological analysis, geochemical detection and simulation experiments, the hydrocarbon expulsion mechanisms of the Low Tertiary source rocks were studied in the Dongying Depression.
本文采取地质研究、地球化学分析测试与物理模拟实验相结合的方法，研究了东营凹陷下第三系烃源岩排烃机理。
In the subsidence period of the Cenozoic basin, the hydrocarbons generated secondarily by Palaeozoic source rocks migrated upward and passed through fault to Tertiary reservoir.
古生界烃源岩在新生代盆地沉降期间“二次生烃”，生成的天然气通过断裂向上运移至第三系储集。
Study on the hydrocarbon source rocks of Lower- Palaeozoic in North China is very important to the Pre- Tertiary oil-gas strategic precinct.
华北地区下古生界烃源岩研究对前古近系油气战略资源选区具有重要意义。
The sag can be divided into 5 secondary tectonic belts, the main sedimentary formation is Tertiary and the main source rock is Pinghu coal measures of Eocene.
该凹陷分为5个二级构造带，沉积地层以第三系为主，主要烃源岩为始新统平湖组煤系。
The mature phase of the hydrocarbon source rock of the salt lake facies of the Tertiary in the western Caidamu is in late Tertiary, and it is later than other basins.
柴达木盆地西部第三系盐湖相烃源岩成熟期为晚第三纪，成烃期相对较晚；
Conclusion The gas of well Gubeigu 1 was produced during subsidence and was buried in Tertiary. The gas migrates and accumulates from source rock to reservoir through fractures.
结论孤北古1井成气期主要在第三纪末—第四纪的沉降埋藏期，由于断裂和裂缝的产生使天然气从烃源岩中运移出来，并通过断裂和裂缝运移至构造高部位聚集成藏。
There are very thick Upper Tertiary marine hydrocarbon source rocks in Yong-Qiong basin, containing abundant supermicro resinous materials; Thus, they are classified as good-very good source rocks.
莺-琼盆地存在巨厚的上第三系海相烃源岩，它含有丰富的超显微树脂体，因而可划分为好—很好烃源岩。
The accumulated oil and gas in the trap came from the Lower Tertiary hydrocarbon source rock 2000~5000 meters below.
渤海油区上第三系为河流相沉积，不能生油，其圈闭中聚集的油气来自2000?。
The accumulated oil and gas in the trap came from the Lower Tertiary hydrocarbon source rock 2000~5000 meters below.
渤海油区上第三系为河流相沉积，不能生油，其圈闭中聚集的油气来自2000?。
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