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| 1 | 济阳坳陷古近系深层成烃与成藏显示文摘运用地球化学与沉积学、石油地质学相结合的方法,从深层烃源岩空间展布及沉积有机相分析入手,研究济阳坳陷深层有利勘探方向。济阳坳陷古近系深层孔店组—沙四段烃源岩发育缺氧有机相、短暂充氧有机相、低氧有机相和充氧有机相4种沉积有机相类型,缺氧相、短暂充氧相优质烃源岩主要发育在沙四段,孔店组烃源岩主要为低氧有机相、充氧有机相,为一般烃源岩。排烃过程可分为自由排水、烃类生成和能量积累及微裂隙排烃等3个阶段,深层烃源岩的排烃主要发生在微裂隙排烃阶段,不同地质条件下可发生垂向运移、侧向运移和向下运移3种油气运移方式。已探明中浅层源自沙四段缺氧有机相、短暂充氧有机相优质烃源岩的油气藏,主要通过沿断裂的垂向运移方式成藏,而大量以侧向运移及向下运移方式形成的油气藏尚有待于揭示。古近系深层仍具有较大的勘探潜力。 | 张林晔 徐兴友 刘庆 孔祥星 张守春 | 2011 | 石油勘探与开发2011，38，5： | 24 |
| 2 | Effects of Near-Surface Absorption on Reflection Characteristics of Continental Interbedded Strata:the Dagang Oilfield as an Example显示文摘由于震波领域干扰的效果,思考事件从 interbedded 产生了并且迭加沙和页岩阶层不再与地质的接口有一种明确的相应关系。近表面的层的吸收减少地震小浪的分辨率,从不同的沙身体加强地震思考的干扰,并且做更复杂、困难的薄 interbedded 阶层的地震数据解释。以便具体地在 interbedded 阶层的地震思考特征上调查并且分析近表面的吸收的效果,并且弄明白当前的技术的能力补偿近表面的吸收,有近表面的吸收的大陆人 interbedded 阶层的一个地质的模型被设计,并且 prestack 震波地数字地与波浪方程被模仿。然后,模仿的波浪地被 prestack 时间迁居处理, prestack 和 poststack 思考特征上的近表面的吸收的效果被分析,并且近表面的吸收被补偿由反的过滤 Q。模型测试显示出那:(1 ) 预言的可靠性和有 AVO 倒置的一座大陆人水库的描述由于近表面的结构的侧面的变化被降级;(2 ) 在地震思考事件和地质的接口之间的相应关系进一步由于近表面的吸收被削弱;并且(3 ) 吸收赔偿的当前的技术可能导致假地质的结构和异例。基于模型实验, Dagang 油地的真实地震数据被分析并且处理。大陆人 interbedded 阶层的地震思考特征被改进,并且从地震数据的地质的解释的可靠性被提高。 | LI Guofa CAO Mingqiang ZHOU Hui | 2010 | Acta Geologica Sinica(English Edition)2010，84，5： | 10 |
| 3 | The coupling of dynamics and permeability in the hydrocarbon accumulation period controls the oil-bearing potential of low permeability reservoirs:a case study of the low permeability turbidite reservoirs in the middle part of the third member of Shahejie显示文摘The relationships between permeability and dynamics in hydrocarbon accumulation determine oilbearing potential(the potential oil charge) of low permeability reservoirs.The evolution of porosity and permeability of low permeability turbidite reservoirs of the middle part of the third member of the Shahejie Formation in the Dongying Sag has been investigated by detailed core descriptions,thin section analyses,fluid inclusion analyses,carbon and oxygen isotope analyses,mercury injection,porosity and permeability testing,and basin modeling.The cutoff values for the permeability of the reservoirs in the accumulation period were calculated after detailing the accumulation dynamics and reservoir pore structures,then the distribution pattern of the oil-bearing potential of reservoirs controlled by the matching relationship between dynamics and permeability during the accumulation period were summarized.On the basis of the observed diagenetic features and with regard to the paragenetic sequences,the reservoirs can be subdivided into four types of diagenetic fades.The reservoirs experienced two periods of hydrocarbon accumulation.In the early accumulation period,the reservoirs except for diagenetic fades A had middle to high permeability ranging from 10 × 10^(-3) μm^2 to4207 × 10^(-3) μm^2.In the later accumulation period,the reservoirs except for diagenetic fades C had low permeability ranging from 0.015 × 10^(-3)~ μm^2 to 62 × 10^(-3) μm^2.In the early accumulation period,the fluid pressure increased by the hydrocarbon generation was 1.4-11.3 MPa with an average value of 5.1 MPa.and a surplus pressure of1.8-12.6 MPa with an average value of 6.3 MPa.In the later accumulation period,the fluid pressure increased by the hydrocarbon generation process was 0.7-12.7 MPa with an average value of 5.36 MPa and a surplus pressure of1.3-16.2 MPa with an average value of 6.5 MPa.Even though different types of reservoirs exist,all can form hydrocarbon accumulations in the early accumulation period.Such types of reservoirs can form hydrocarbon accumulation with high accumulation dynamics:however,reservoirs with diagenetic facies A and diagenetic fades B do not develop accumulation conditions with low accumulation dynamics in the late accumulation period for very low permeability.At more than 3000 m burial depth,a larger proportion of turbidite reservoirs are oil charged due to the proximity to the source rock.Also at these depths,lenticular sand bodies can accumulate hydrocarbons.At shallower depths,only the reservoirs with oil-source fault development can accumulate hydrocarbons.For flat surfaces,hydrocarbons have always been accumulated in the reservoirs around the oil-source faults and areas near the center of subsags with high accumulation dynamics. | Tian Yang Ying-Chang Cao Yan-Zhong Wang Henrik Friis Beyene Girma Haile Ke-Lai Xi Hui-Na Zhang | 2016 | Petroleum Science2016，13，2： | 10 |
| 4 | Hydrocarbon accumulation characteristics of beachbar sandstones in the southern slope of the Dongying Sag, Jiyang Depression, Bohai Bay Basin, China显示文摘A number of beach-bar sandstone reservoir beds are developed in the upper fourth member of the Eocene Shahejie Formation(Ess4) on the southern slope of the Dongying Sag. Based on the analysis of seismic and logging data, with characterization and petrographic studies of core and cutting samples, this paper analyzes the hydrocarbon accumulation characteristics in two typical blocks of the Boxing and Wangjiagang oilfields, especially reservoir bed heterogeneity and migration conditions that influence oil and gas distribution, calculates the index of reservoir bed quality(IRQ) with a mathematical method, and discusses the relationship between driving force and resistance of hydrocarbon accumulation. Taking into account the characteristics of thin interbeds in beach-bar sandstones, an experimental model simulated the characteristics of hydrocarbon migration and accumulation in thin interbedded sandstones with reservoir bed heterogeneity. The results showed that hydrocarbon distribution and properties were extremely non-uniform. Reservoir bed and migration conditions controlled hydrocarbon accumulation in beach-bar sandstones. IRQ is above 0.4 in the main hydrocarbon region. Sand body distribution, structural configuration and fault systems controlled the direction of regional migration and location of hydrocarbon accumulation. Simulation experiments indicated that the change of driving force for hydrocarbon migration affected selective accumulation mechanisms. Hydrocarbon moved vertically along fault zones to the reservoir and resulted in the distribution of hydrocarbon in the reservoir. Two kinds of hydrocarbon accumulation models exist in the study area. One is a hydrocarbon accumulation model controlled by reservoir bed heterogeneity and the second is a hydrocarbon accumulation model controlled by a complex migration system with faults connecting sandbodies. Finally, different exploration strategies should be adopted for the detailed exploration for beach-bar sandstone reservoirs according to different geological backgrounds. | Guo Song Tan Lijuan Lin Chengyan Li Hongnan Lü Xiuxiang Wang Hongtao | 2014 | Petroleum Science2014，11，2： | 4 |
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