Study on Formation Type II is so few that affect on tapping the potential [2]. Analyzing petrophysics of Formation Type I and II by mercury injection curve normalization, it’s vital to developing method choice on tapping the potential of Formation Type II. Capillary pressure curves (Pc-curves) from conventional Mercury Injection are hard to analyze and compare because of various shapes. To get typical capillary pressure curves for Formation Type I and II, the curves from Mercury Injection is processed by Function J, and the J function curves and normalized Pc-curves for tabulated thin layers, tabulated thick layers and un-tabulated layers in Formation Type I and II, compare and analyze the influence of permeability on the shape of J function curves and normalized Pc-curves; compare the influence of different kinds of layers with the same permeability order of magnitude on the shape of J function curves and normalized Pc-curves, i.e. the influence of other factors except permeability, to get some visual identification methods and analyze the petrophysics difference between Formation Type I and II which is shown on Pc-curves.
Pearl River Delta has been one of the haze centers in China recent years. MODIS ˄ Moderate Resolution Imaging Spectrometer ˅ ,a kind of sensor boarded on Terra and Aqua satellites, provides an effective way to monitoring the aerosol over land surface.
Coal-bed methane (CBM) is clean energy which owns currently the best prospects for development, its efficient development is conducive to the safety production of the coal industry. Commingling can effectively reduce the development costs of coal-bed methane, while improving the methane production. Aiming at the actual geological conditions in Qinduan block, using numerical simulation technology, establish the ideal model based on the actual geological data to make feasibility study of commingling respectively from the permeability and the initial reservoir pressure. The results show that, under the condition of reasonable control production system, the target block can be commingling.
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