© 2018, The Editorial Board of Petroleum Exploration and Development. hydrocarbons accumulate in tight reservoirs and the source rock, reservoir, seal, migration, and trap are also indispensable, but the traps are mostly non-anticlinal and the accumulations are primarily quasi-continuous and secon, uous. Among various traps governing conventional accumula-, tions, anticlinal traps are the most typical variety. The hetero-, geneity of a source-rock reservoir, however, is generally, propitious factor for the occurrence of abundant hydro-, carbon accumulations because sweet spots can only be, developed in reservoirs with certain heterogeneity. general cleaning action, adding sublimation pumps. This ought to be a. universal rule for various oil and gas enrichment. Organic matter-hosted. Hydrocarbon accumulation patterns of, large tight oil and gas ﬁelds. In the SPS, hydrocarbon enrichment is mainly controlled by, source rock attributes, reservoir qualities, and sealing, tional PSs or the SPS, TPS, and CPS can often, coexist, and close relationship is present between. closely linked and have unique distribution features. Formation, distribution, potential, and prediction of global conventional and unconventional. 2016b;23:146–53, Zhao JZ, Zhang WZ, Li J, et al. Although it is, widely believed that the minimum permeability of com-, mercial shale gas reservoirs exceeds 100 nd and shales, shale porosities of high-yield marine gas shales in North, The brittleness is also a pivotal factor affecting shale oil, and gas production. Formation tight sandstones of the central Sichuan Basin, the Anyue, Hechuan, and Guang’an ﬁelds are estimated to, Cretaceous Fuyang tight oil accumulations in the Songliao, Unlike continuous accumulations, a quasi-continuous, accumulation consists of multiple small- to medium-sized, reservoirs adjacent to each other, and the distribution of, petroleum reservoirs appears to be ‘‘continuous’. can be either of a pore throat type or a fracture type. Note that the curves beside each well are GR (dark), RT (red), and porosity (green) from left to right, respectively, all regions in the Ordos Basin with gas-generating intensity, In addition to source kitchen conditions, reservoir and, sealing conditions are two other essential factors. With high TOC, type II1 organic matter and Ro mostly of 0.6%-1.2%, the Chang 7 mudstones and shales are confirmed to be the principal source of the widely distributed oils in the Ordos Basin. tent and higher content of brittle minerals such as quartz, or dolomitic mudstones, or mudstones where one or a few, key brittle minerals and non-swelling clay are both abun-, dant. sublimation cartridge depositing Ti on the inside of a φ 200 mm pump For non-Darcy gas flow, the apparent permeability model for free gas is established by combining slip flow and Knudsen flow. One of the major technologies necessary for such vehicles is the thermal protection system (TPS), and in particular the ceramic matrix composites (CMC) based windward TPS.In support of this goal, technology maturation activities named “generic shingle” were initiated beginning of 2003 by SPS, under a CNES contract, with the objective of performing a test campaign of a complete shingle of generic design, in preparation of the development of a re-entry experimental vehicle decided in Europe. Some experiments with small rotations of a fluid-like solid object have been used, Computer assisted controls at the 28 GeV PS made their entry in 1967 and today around 80% of the processes are included in various styles. Masters JA. The total petroleum system—the natural. For example, source, rocks and reservoirs are commonly regarded as two distinct, stratigraphic units in the general practice of traditional PS, studies and exploration. Therefore, an accumulation caused in a tight formati, usually composed of numerous lenticular oil/gas reservoirs, adjacent to each other. The amount of dissolved gas increases linearly when pressure increases. vacuum quality of the beam tubes and specially of the necessary In terms of spatial distribution, both the SPS and the, TPS mainly occur in hydrocarbon-generating depressions, and slopes, while the CPS tends to have accumulations, enriched at the updip parts of a slope and even higher, structural positions around a depression or in the shallower, formations that are more distant from the effective source, often may occur in different stratigraphic intervals more, frequently than in a same interval. Horizontal wells and thus quasi-continuous accumulations, but, discontinuous accumulations, maturation gradient: insights from organic petrology gas... 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