摘要 :
Abnormal pressure oil/gas fields (pools) are widely distributed in China, which with the less than 0. 9 and greater than 1. 1 pore fluid pressure coefficient account for 42% of total oil/gas fields (pools) ,35% of which are overpr...
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Abnormal pressure oil/gas fields (pools) are widely distributed in China, which with the less than 0. 9 and greater than 1. 1 pore fluid pressure coefficient account for 42% of total oil/gas fields (pools) ,35% of which are overpressured ones and 7%, subpressured ones. The abnormally low pressured gas fields (pools) are relatively less in numbers and each has less than 5X 10'm3 in reserves) the number of super-pressured gas fields (pools) is more than that of the former, but decrease with the increasing of pore fluid pressure coefficient, and reserves range from 2X10'm3 to 15X 109m3. The spatial and temporal distribution, the abnormally pressured oil/gas fields (pools) are chiefly located at the formations with composite lithological-structural traps and lithological traps from the Paleozoic to the Cenozoic. Their stages of accumulation were generally in the Mesozoic and the Tertiary. The aubpres-sured oil/gas (pools) were buried at a depth of less than 2000m, and the overpressured ones at a depth of more than 3500m. The more the depth is, the more the number of overpressured oil/gas fields (pools) becomes obviously. The sedimentary-type overpressured oil/gas fields (pools) are mainly located in the eastern area of China , and controlled by the under-compaction, aquathermal, hydrocarbon generation and dehydration of clay minerals which all are the contributors to the pore fluid pressures. But in the central area of China, the structural-type overpressured oil/gas fields (pools) were mainly influenced by the hydrocarbon generation and the tectonic compression in the late stages. The subpressured oil/gas fields (pools) in northeast area of China are chiefly controlled by the tectonic elevation and erosion in the late stages. Our investigation shows that the very favorable conditions to form abnormally high pressure oil/gas fields (pools) in China include the abundant soure rocks, the matching of hydrocarbon generation with the tim-ing of traps, the effective regional seals and the pore fluid pressure coefficient between 1.1-1.3.
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This article considers the possibility of application of high-resolution electrocardiography spectral methods to the analysis of the variability of cardiac cycle spectral analysis results, which will significantly improve the diag...
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This article considers the possibility of application of high-resolution electrocardiography spectral methods to the analysis of the variability of cardiac cycle spectral analysis results, which will significantly improve the diagnostic capabilities of these methods. Implementation of the proposed approaches will move from a one-dimensional (the duration of the cardiac cycle) analysis of heart rate variability to a multidimensional (parameters of the form and location of the peaks of the cardiac cycle) analysis of the cardiac parameters.
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Fuel economy is the permanent drive for transmission technology, the trends for transmission fluids are low viscosity and "fill-for-life" service. Different type transmissions have different requirements on fluids. Fluids should b...
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Fuel economy is the permanent drive for transmission technology, the trends for transmission fluids are low viscosity and "fill-for-life" service. Different type transmissions have different requirements on fluids. Fluids should be developed together with transmission. SINOPEC will cooperate with OEM to develop new transmission fluids.
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Beijing-Tianjin-Langfang integration is the inevitable trend of regional economic development, the formation of Beijing-Tianjin-Langfang industrial clusters has important value to Langfang for it can rely on the advantages of two ...
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Beijing-Tianjin-Langfang integration is the inevitable trend of regional economic development, the formation of Beijing-Tianjin-Langfang industrial clusters has important value to Langfang for it can rely on the advantages of two large municipalities to develop its economy fully. In the background of Beijing-Tianjin-Langfang integration, analyzing Langfang industrial structure's existing problems and putting forward optimization measures and suggestions will be of great practical significance to adjustment of Langfang industrial structure.
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摘要 :
Beijing-Tianjin-Langfang integration is the inevitable trend of regional economic development, the formation of Beijing-Tianjin-Langfang industrial clusters has important value to Langfang for it can rely on the advantages of two ...
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Beijing-Tianjin-Langfang integration is the inevitable trend of regional economic development, the formation of Beijing-Tianjin-Langfang industrial clusters has important value to Langfang for it can rely on the advantages of two large municipalities to develop its economy fully. In the background of Beijing-Tianjin-Langfang integration, analyzing Langfang industrial structure's existing problems and putting forward optimization measures and suggestions will be of great practical significance to adjustment of Langfang industrial structure.
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Internet of Vehicles is strategic industries in China, which can provide information service for consumer and further increases the market demand for firms. When a manufacturer uses a retailer as a channel for reaching end custome...
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Internet of Vehicles is strategic industries in China, which can provide information service for consumer and further increases the market demand for firms. When a manufacturer uses a retailer as a channel for reaching end customers, the IOV strategy takes on an additional dimension: who should provide IOV service to end customers, and what is the equilibrium for providers. We examine the efficacy of IOV service by manufacturer, IOV service by retailer, and overall supply chain in a model of two competing manufacturer-retailer supply chains who sell partially substitutable IOV service that may differ in market size. Findings suggest that that supply chain efficiency is higher with the IOV service by retailer if the service substitutability is low.
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摘要 :
Internet of Vehicles is strategic industries in China, which can provide information service for consumer and further increases the market demand for firms. When a manufacturer uses a retailer as a channel for reaching end custome...
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Internet of Vehicles is strategic industries in China, which can provide information service for consumer and further increases the market demand for firms. When a manufacturer uses a retailer as a channel for reaching end customers, the IOV strategy takes on an additional dimension: who should provide IOV service to end customers, and what is the equilibrium for providers. We examine the efficacy of IOV service by manufacturer, IOV service by retailer, and overall supply chain in a model of two competing manufacturer-retailer supply chains who sell partially substitutable IOV service that may differ in market size. Findings suggest that that supply chain efficiency is higher with the IOV service by retailer if the service substitutability is low.
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Fast neutron radiography is a promising application for accelerators. The potential effectiveness of this technique depends on the development of suitable imaging detectors for fast neutrons. Zinc sulphide based scintillators have...
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Fast neutron radiography is a promising application for accelerators. The potential effectiveness of this technique depends on the development of suitable imaging detectors for fast neutrons. Zinc sulphide based scintillators have the largest light output per event in the family of imaging scintillators used so far in fast neutron radiography. This paper investigated different aspects of this scintillator in order to determine the factors which might affect the light output. A mathematical model was established to estimate effectiveness of this scintillator. Zinc sulphide screens were prepared with ZnS particles of different concentration in polypropylene matrix. A 14MeV fast neutron source was used in the experiments. The light output was detected using a CCD camera or a film coupled to the scintillator screen. The results showed that the optimum scintillators is 3-mm in thickness with the weight ratio of 1:1 to 2:1 for ZnS and polypropylene.
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