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971.
Gu JiayuResearch Institute of Petroleum Exploration Development Beijing 《《地质学报》英文版》1996,70(4):395-406
Very thick, fine-grained quartzose sandstone of the Lower Carboniferous (called the Donghe sandstone) was discovered in Donghe-1 well in the Tarim basin. Highly-productive commercial oil and gas flows were obtained when a well completion test was conducted. This important discovery proved that the quartzose sandstone is a prospecting target with good prospects. After that, other two paying oil and gas flows were found in the Lower Carboniferous in the Tazhong-4 and Tazhong-10 structures (Tazhong means central Tarim), equivalent to the Donghe sandstone. The Tazhong-4 structural oil field is the biggest oil field ever discovered. Therefore it is of guiding importance in oil and gas exploration to deepen the study of sedimentary and reservoir features and the sedimentary environment of the Donghe sandstone and to build a sedimentary model in order to understand the reservoir distribution pattern. 相似文献
972.
湘南区域构造应力解析 总被引:3,自引:0,他引:3
该文应用构造应力解析的方法,对湘南地区地槽,地台,地台期后活化作用三个阶段地质演化过程中所发育的构造,岩石,地层等特征进行了讨论,并简略地分析了影响湘南地区构造应力格局的因素。 相似文献
973.
1992年以来,湖南省电力勘测设计院在省内开展了核电普查选址工作,经过3年多的勘查,现已筛选出4个侯选厂址。作者著文探讨了这4个厂址的地震地质特征和工程地质条件,可供进一步选址参考 相似文献
974.
975.
STUDY ON CANONICAL AUTOREGRESSION PREDICTION OF METEOROLOGICAL ELEMENT FIELDS 总被引:1,自引:0,他引:1
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Through extension of canonical correlation to the analysis of meteorological element fields(MEF), a concept from combination of canonical autocorrelation with canonical autoregression(CAR) is developed for short-term climatic prediction of MEFs with a formulated scheme. Experi-mental results suggest that the scheme is of encouraging usefulness to a weak persistence MEF,i.e., rainfall field and, in particular, to a strong persistance one like a SST field. 相似文献
976.
977.
The impacts of the enhanced model's moist physics and horizontal resolution upon the QPFs(quantitative precipitation forecasts)are investigated by applying the HIRLAM(high resolutionlimited area model)to the summer heavy-rain cases in China.The performance of the control run,for which a 0.5°×0.5°grid spacing and a traditional“grid-box supersaturation removal+Kuo typeconvective paramerization”are used as the moist physics,is compared with that of the sensitivityruns with an enhanced model's moist physics(Sundqvist scheme)and an increased horizontalresolution(0.25°×0.25°),respectively.The results show:(1)The enhanced moist physics scheme(Sundqvist scheme),by introducing the cloud watercontent as an additional prognostic variable and taking into account briefly of the microphysicsinvolved in the cloud-rain conversion,does bring improvements in the model's QPFs.Althoughthe deteriorated QPFs also occur occasionally,the improvements are found in the majority of thecases,indicating the great potential for the improvement of QPFs by enhancing the model's moistphysics.(2)By increasing the model's horizontal resolution from 0.5°×0.5°,which is already quitehigh compared with that of the conventional atmospheric soundings,to 0.25°×0.25°without thesimultaneous enhancement in model physics and objective analysis,the improvements in QPFs arevery limited.With higher resolution,although slight amelioration in locating the rainfall centersand in resolving some finer structures of precipitation pattern are made,the number of the mis-predicted fine structures in rainfall field increases with the enhanced model resolution as well. 相似文献
978.
结合国内外资料,介绍了近年来火山震动的非线性动力学研究进展,并且讨论了预测火山活动的某些综合方法。 相似文献
979.
AuniformcatalogofearthquakesforseismichazardasesmentinIranNoorbakhshMirzaei1,2)MENG-TANGAO1)(高孟谭)YUN-TAICHEN1)(陈运泰)JIANWANG1... 相似文献
980.
Ma Zongjin Zhang Peizhen Hong Hanjin and Gao Xianglin Institute of Geology SSB Beijing China 《中国地震研究》1997,(1)
Although great-progress has been made in the earth sciences,some fundamental problems of geodynamics remain unsolved.They are concerned with the whole earth as well as regional tectonics,such as the west Pacific and Qinghai-Xizhang plateau.The new generation of earth observation by space-based measurement will contribute to solving these problems of geodynamics.In this regard,some specific plans about application of these techniques are suggested in this paper. 相似文献