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Changling faulted southern Songliao Basin deep hydrocarbon source rock evaluation

Author: ZuoRuiJing
Tutor: XueHaiTao
School: Northeast University of Petroleum
Course: Geochemistry
Keywords: Changling rift Source rocks Chemical Kinetics Monte Carlo method Qualitative evaluation Quantitative evaluation
CLC: P618.13
Type: Master's thesis
Year: 2011
Downloads: 121
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Abstract


Deep in the southern Songliao Basin gas exploration process found hydrocarbon gas distribution and the distribution of hydrocarbon source rocks are closely related . And has been clearly recognized in the shallow southern Songliao Basin is rich in oil and gas resources compared to oil and gas resource potential of the deep understanding of its distribution is still relatively vague, it has become a constraint that objective investment decisions and further exploration important factor. To solve this problem , this paper Changling faulted southern Songliao Basin deep source rocks commenced qualitative and quantitative evaluation of deep gas exploration work for the next step to provide evidence . Using the measured geochemical data , combined with the logging of this area localization method for qualitative evaluation of hydrocarbon source rocks . Studies have shown that organic matter abundance Changling rift than Shahezi Yingcheng , including dry north times depression Shahezi Yingcheng slightly better than the other subsags are Shahezi based. Hal Gold, Volt Longquan , Hashemi lump of Yingcheng , volt Longquan Shahezi types of organic matter to Ⅱ 1 type ~ Ⅱ 2 type-based , the rest are type Ⅱ 2 ~ Ⅲ type based. High maturity over cooked cooked ~ based. Quantitative evaluation of source rocks first is to restore the region's geological history , thermal history , the history of oil and gas generation and expulsion providing temperature field and thermal simulation experiments based on the results of the study area to establish hydrocarbon profile, on the basis of the original organic carbon and hydrocarbon potential for recovery , and use Monte Carlo method to calculate the probability distribution over the parameter , and finally combined with chemical kinetics method of hydrocarbon generation in different periods strength and amount of hydrocarbon . Through quantitative calculations, Changling rift YINGCHENG 50% the amount of mathematical expectation angry 6000000000000 parties Shahezi as 20 trillion square , showing higher than Shahezi Yingcheng angry , so determined as the main source rocks Shahezi . Component of natural gas , and carbon isotope composition of noble gas isotopes and other indicators of light hydrocarbon gas cause analysis, results showed that the Changling faulted both oil-type gas , coal gas , and inorganic gas , as well as including a mix of both gas . Use of natural gas and light hydrocarbons maturity fingerprint gas source , indicating that the Changling rift hydrocarbon gas mainly from Shahezi .

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CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Fuel deposits > Oil, natural gas
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