The volcano rock is usually located in the area which has experienced intense tectonic movement, led to complex lithology, diversification of lithofacies, reservoir heterogeneity seriously and so on.Due to above reasons, volcanic reservoir distribution is easy to be affected and is difficult to predict. This article argues that wave impedance and density are the sensitive parameters of volcanic rock favorable reservoir in Yingcheng formation by analyzing volcano rock reservoir sensitivity in Yingshan area........

Keywords: Yingshan area; Sensitive parameter analysis; logging constrained inversion; volcanic rock reservoir

[1] Dai S L,Jiang C J,Zhang Y G. 2012.Methodologies for Predicing Effective Reservoir of Volcanic in Anda Area of Xujiaweizi Depression[J]. Geological Science and Technology Information, 31(2):67-71.
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Computational rock physics is a frontier subject which combines computer science, mathematics and rock physics with each other.This paper introduces the development of the calculation of rock physics, and describes the necessity of developing the method of calculating rock physics.The scientific methods of calculating rock physical methods are discussed.The present research situation of the calculation of rock physics is analyzed.Finally, the problems in the calculation of rock physics are summarized.

Keywords: - Rock physics; Numerical simulation; Computational rock physics.

[1] Yang Zhifang，Cao Hong，Review of progresses in seismic rock physics[J].Progress in Geophysics，2009,24(3):893-899
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Presence of salinity 9 to 20 g/L of chlorides can cause osmotic stress or inhibit the reaction pathways in the organic degradation process. It results in a significant decrease in biological treatment efficiency or biodegradation kinetics. Research is carried out using glucose–glutamic acid and domestic wastewater to evaluate the amendment of chlorides on biodegradation of sewage at 20°C........

Key words：osmotic stress; BOD; Reaction kinetics; up to 20 g/L of chlorides

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As discussed in the present research work, the function of pattern evaluation is utilized to evaluate the interestingness of discovered knowledge from the user's viewpoint. And the research work is the approach which is providing practical approach of interestingness measured. It is focused on advancement in pattern evaluation. Pattern got from the process of data mining Which is carried out from the large pool of data organized in Data Base or Data Warehouse.

Keywords: Pattern Evaluation

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Bohai bay basin carboniferous - Permian hydrocarbon source rocks mainly include high maturity mudstone, carbonaceous shale and coal, hydrocarbon generation series including the benxi, taiyuan, shanxi group and xiashihezi group, shanxi group and taiyuan group is the major hydrocarbon generating horizon; Benxi group hydrocarbon generating contribution is smaller. Hydrocarbon source rock evaluation methods including organic matter abundance, type, maturity and hydrocarbon generation potential and computing resources.

Keywords: Bohai bay basin; hydrocarbon source rocks; hydrocarbon generation potential

[1] Bai Guoping, Cao Binfeng. The global deep hydrocarbon reservoirs and their distribution law[J]. Journal of oil and gas geology, 2014, (1).
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[5] Sun Longde, Zou Caineng, Zhu Rukai, Zhang Yunhui, Zhang Shuichang, Zhang Baomin, Zhu Guangyou, Gao Zhiyong. China deep oil and gas formation, distribution and potential analysis[J]. Journal of petroleum exploration and development, 2013, (6).

Abstract：After entering the high water cut stage, the remaining oil content depends on the micro pore structure of the complex, the micro pore structure research is also limited to the core laboratory stage mainly, therefore the use of logging data analysis and identification of micro pore structure is the only way for the study of residual oil.The results show that as a nonlinear method, artificial neural network can better simulate the actual strata, and can better identify the complex microstructure of the formation........

Keywords: BP neural network; log interpretation; microstructure

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Seismic wave velocity is one of the most important parameters in the process of seismic data processing and interpretation, which is significant for calculating the near-surface statics, migration, predicting rock parameters and reservoir inversion. The full waveform inversion(FWI) is recognized widely as a kind of high precision, multi-parameter inversion tool, so it plays an unique advantages role in the velocity modeling........

Keywords: velocity modeling, FWI, conjugate gradient method, influential factors

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Coupled, parallel flow of fluids with viscosity stratification through two porous layers is initiated in this work. Conditions at the interface are discussed and appropriate viscosity stratification functions are selected in such a way that viscosity is highest at the bounding walls and decreases to reach its minimum at the interface. Velocity and shear stress at the interface are computed for different permeability and driving pressure gradient.

Keywords: Coupled parallel flow, stratified viscosity

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The problem of laminar flow through a porous medium, with constant permeability, behind a two-dimensional grid is revisited in order to introduce permeability variations in the governing equations. Expressions for permeability profiles are derived when the model equations are linearized and permeability is calculated at the stagnation points of the flow and conditions on the parameters involved in the exact solution are stated. This work might be of interest in the stability analysis of flow through variable permeability media.

Keywords: Variable permeability, linearized Darcy-Lapwood-Brinkman equation.

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