China Petroleum & Chemical Corporation , or Sinopec Limited , is a Chinese oil and gas company based in Beijing, China. It is listed in Hong Kong and also trades in Shanghai and New York. Sinopec is the world's fifth biggest company by revenue and its second biggest chemical producer.Sinopec Limited's parent, Sinopec Group, is one of the major State Owned petroleum energy and chemicals companies in China, headquartered in Chaoyang District, Beijing. Sinopec's business includes oil and gas exploration, refining, and marketing; production and sales of petrochemicals, chemical fibers, chemical fertilizers, and other chemical products; storage and pipeline transportation of crude oil and natural gas; import, export and import/export agency business of crude oil, natural gas, refined oil products, petrochemicals, and other chemicals. In 2011 it ranked as the 5th largest company in sales in Forbes Global 2000. In 2009, it was ranked 9th by Fortune Global 500 becoming the first Chinese corporation to make the top ten and in 2010 it was ranked 7th. In 2007, it ranked first in the Top 500 Enterprises of China ranking. Wikipedia.
Shiyou Xuebao/Acta Petrolei Sinica | Year: 2013
Represented by the Tahe oilfield, the carbonate fractured-cavity reservoir is a special type of reservoirs that have large caves and fractures as the major accumulating space. The reservoir distribution is complex and the fluid flow in main fractured-cavity media is incompatible with the Darcy seepage flow law, so that the reservoir development can not use the mature development theory and technology of clastic rock reservoirs for reference. Through scientific and technological researches in recent years, some theoretical problems on the formation mechanism of fractured-cavity reservoirs and the related fluid dynamic mechanism have been solved, and three key technical achievements have been obtained, including the geophysical description of ultra-deep fractured-cavity reservoirs, the fractured-cavity reservoir modeling under the multiple-scale karst-facies control and the numerical simulation of fractured-cavity reservoirs, all of which have effectively guided the water injection development and enhanced the development effect of fractured-cavity reservoirs in the Tahe oilfield.
Science China Earth Sciences | Year: 2012
Advances in studies of formation and accumulation mechanisms of oil and gas in marine carbonate sequences have led to continuing breakthroughs of petroleum exploration in marine carbonate sequences in Chinese sedimentary basins in recent years. The recently discovered giant Tahe Oil Field and Puguang Gas Field have provided geological entities for further studies of the formation and accumulation of oil and gas in marine carbonate sequences. Marine carbonate sequences in China are characterized by old age, multiple structural deformation, differential thermal evolution of source rocks, various reservoir types (i. e. reef-bank complex and paleo-weathered crust karst reservoir), uneven development of caprocks, especially gypsum seal, and multi-episodes of hydrocarbon accumulation and readjustment. As a result, the formation of hydrocarbon accumulations in the Chinese marine carbonate sequences has the following features: (i) the high-quality marine source rocks of shale and calcareous mudstone are often associated with siliceous rocks or calcareous rocks and were deposited in slope environments. They are rich in organic matter, have a higher hydrocarbon generation potential, but experienced variable thermal evolutions in different basins or different areas of the same basin. (ii) High quality reservoirs are controlled by both primary depositional environments and later modifications including diagenetic modifications, structural deformations, and fluid effects. (iii) Development of high-quality caprocks, especially gypsum seals, is the key to the formation of large- and medium-sized oil and gas fields in marine carbonate sequences. Gypsum often constitutes the caprock for most of large sized gas fields. Given that Chinese marine carbonate sequences are of old age and subject to multiple episodes of structural deformation and superposition, oil and gas tend to accumulate in the slopes and structural hinge zones, since the slopes favor the development of effective assemblage of source-reservoir-caprock, high quality source rocks, good reservoirs such as reef-bank complex, and various caprocks. As the structural hinge zones lay in the focus area of petroleum migration and experienced little structural deformation, they are also favorable places for hydrocarbon accumulation and preservation. © 2011 Science China Press and Springer-Verlag Berlin Heidelberg.
Petroleum Exploration and Development | Year: 2012
Sustainable development of petroleum industry depends on tactic and strategic replacement of production, in which the exploitation of new oil and gas production areas has a profound and lasting significance. After first and second strategic development, the existing oil and gas areas in China have been in a relatively stable and mature stage of their life cycles, there is an urgent need to start a new strategic replacement of oil and gas to guarantee stable and increasing production for China in the long term. Through production and research sponsored by government in the beginning of the 21 century, the targets of new oil and gas areas have been initially identified. They include (1) the Upper Paleozoic of north China, especially the Carboniferous and Permian underlying the Mesozoic and Cenozoic; (2) Qiangtang block which features in Paleozoic and Mesozoic marine strata, and Cenozoic rift system which has simple petroleum accumulation conditions in Tibetan plateau; (3) Mesozoic marine strata covered by the Cenozoic in the south sea and east sea of China; (4) unconventional hydrocarbons, especially tight oil and gas, shale gas, shale oil and coalbed gas. © 2012 Research Institute of Petroleum Exploration & Development, PetroChina.
Shiyou Kantan Yu Kaifa/Petroleum Exploration and Development | Year: 2010
Gudao Oilfield in the Shengli oil area, as a typical strong heterogeneous sandstone reservoir of fluvial facies, has successfully applied the reservoir configuration theory to describe reservoirs finely in the extra-high water cut stage. It finely divided the structural levels of reservoir: the original single layer sandstone and mono-sand body are further divided into single-origin monosandstone bodies. The effect of internal configurations and micro-geologic interfaces in sandstones on the remaining oil distribution was studied, achieving favorable effects on exploiting adjustment and tapping potential. Practices proved: (1) the internal structure is complicated in marginal banks and channel bars in thick layers of the main stream channel, and the interlayers in lateral depositions and dropping silts have some separation characteristics, favorable for horizontal wells to tap remaining oil in the top of thick layers; (2) the upper overbank deposits in the double structure of fluvial facies and the thin sandstone layers in marginal abandoned stream channels, which have relative poor physical properties and low exploiting degree, are all important potential areas at the later period of development; (3) abandoned stream channels existing inside the complex curving-flow zones of the reservoir form semi-connection or no connection, affecting the effect of development, and analyzing and identifying them are helpful to improve the corresponding relationship between the injection and production; (4) a single-origin sandbody can be divided into several flow units, and analyzing their difference in the flow characteristics can help to treat the water invasion of reservoir.
Research Institute Of Nanjing Chemical Ind Group and Sinopec | Date: 2015-10-13
A carbon dioxide absorbent is disclosed. The absorbent comprises organic amine, amino acid, and water, wherein said organic amine comprises tertiary amine and primary amine and/or secondary amine; and wherein amino acid is excess based on a stoichiometrical ratio of organic amine to amino acid in a reaction. A method for absorbing and desorbing carbon dioxide is further disclosed. In the absorbent system provided by the present disclosure, the conversion between primary (secondary) amine and (secondary) tertiary amine can be realized under the catalytic effect of amino acid with the changing of temperature, and carbon dioxide can be absorbed and desorbed effectively under a relatively low temperature.