THE PETROLEUM GEOLOGICAL SIGNIFICANCE OF PHSICALLY-ABSOBED GAS
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摘要: 油气藏中的轻烃在与环境进行物质和能量的交换过程中,各赋存状态轻烃在沉积岩表面分子引力的作用下构成了一个动态的物理化学平衡。根据环境中物理吸附轻烃的含量与组分特征,可追踪出轻烃供给源(即油气藏),并可进一步预测与推断出油气藏的性质和特征。物理吸附气技术是让样品在真空状态下比较完全地释放出物理作用吸附的气体,用气相色谱仪定性和定量分析其中的轻烃组分,然后根据轻烃的浓度变化来推断油气藏的性质和特征。物理吸附气技术在岩性变化很大的四川盆地新场气田实验剖面上、在地质及地表条件复杂的鄂尔多斯盆地镇原—泾川黄土塬实验区及塔里木盆地柴窝堡戈壁实验区都有很好的油气指示意义,取得了很好的应用效果且有着广泛的应用前景。Abstract: In the process of the light hydrocarbons in oil or gas reservoirs exchanging substance and energy with surrounding material,all states of light hydrocarbons form a dynamical equilibrium under the action of the surface of sediment.According to the composition and content of physically-absorbed light hydrocarbons,we can trace the source of light hydrocarbons(i.e.oil or gas reservoirs),and further predict or deduce the properties and characteristics of oil or gas reservoirs.By the technology of physically-absorbed light hydrocarbons,the physically-absorbed gas is completely released from the sample in a vacuum state.The light hydrocarbon compositions are analyzed qualitatively and quantitatively with gas-chromatogram.The properties and characteristics of oil or gas reservoirs are determined according to the variety of light hydrocarbon concentration.The technology of physically-absorbed light hydrocarbons got very good application results in Xinchang gas field in Sichuan Basin,Zhenyuan-Jingchuan loes-sial plateau in Ordos Basin and Chaiwopu gobi area in Tarim Basin.This technology has a very good prospect in application and popularization.
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Key words:
- physically absorb /
- light hydrocarbon /
- oil or gas /
- petroleum geologic significance
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[1] 李广之,陈昕华.物理吸附轻烃的录井技术及其石油地质意义[J].石油勘探与开发,1999,26(4):96~99,102 [2] 汤玉平,刘运黎,赵跃伟等.四川盆地烃类垂向微运移及其地球化学效应[J].石油实验地质,2005,27(5):508~511 [3] 赵克斌,孙长青.油气化探在天然气勘探中的应用[J].石油实验地质,2004,26(6):574~579,584 [4] 傅献彩,沈文霞,姚天扬.物理化学[M].北京:高等教育出版社,1991.934~968 [5] 武汉大学,吉林大学.无机化学[M].北京:高等教育出版社,1987.210~220 [6] 李广之.轻烃地球化学场的形成和特征[J].石油与天然气地质,1999,20(1):66~69 [7] 任以发.微量烃分析在井中化探录井中的应用[J].天然气地球科学,2005,16(1):88~92 [8] 李广之,袁子艳,胡斌等.利用顶空气技术判别凝析气(油)储层[J].天然气地球科学,2006,17(3):309~312 [9] 吴向华,程同锦,邓天龙.油气化探分析检测技术现状及发展趋势[J].天然气地球科学,2005,16(1):78~81 [10] 李广之,汪林自.吸附态轻烃的解吸与分析[J].物探与化探,2000,24(1):34~42 -
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