2014 Vol. 20, No. 4

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CHARACTERISTICS, ACHIEVEMENTS AND PROBLEMS ON GEOMECHANICS
LIU Xue-qing
2014, 20(4): 331-338.
Abstract (394) HTML (590) PDF (927KB)(28)
Abstract:
Geomechanics, which is a separate geological discipline, established by our China. Its background, characteristics, achievements are briefly introduced and some problems are proposed as well in this paper. Based on the influence of Geology Three Great Debates, especially for Continental Drift Theory...
NUMERICAL SIMULATION OF TECTONIC STRESS FIELD AND PREDICTION OF OIL-FAVORED AREAS: A CASE STUDY OF THE THIRD MEMBER OF QINGSHANKOU FORMATION IN GUIZIJING REGION OF QIAN'AN AREA, SONGLIAO BASIN
WU Lin-qiang, LIU Cheng-lin, LI Bing, WANG Zi-ling
2014, 20(4): 339-351.
Abstract (280) HTML (118) PDF (11914KB)(18)
Abstract:
Tectonic stress is very important for oil-gas migration and accumulation. Petroleum accumulation for Gaotaizi reservoir in Songliao Basin mainly occurred in the end of Mingshui period. During this period, the peak of hydrocarbon generation and expulsion matches well with large scale hydrocarbon migr...
CHARACTERISTICS AND REGULARITY OF LONGITUDINAL GEOSTRESS DISTRIBUTION IN SAND-MUDSTONE STRATA
ZHANG Dong-tao, TONG Heng-mao, ZHAO Hai-tao, LI Xue, ZHANG Hao
2014, 20(4): 352-362.
Abstract (284) HTML (105) PDF (6473KB)(47)
Abstract:
Based on the analysis of basin geomechanics and mechanical properties of rocks, the characteristics and regularity of geostress distribution in the sand-mudstone strata are studied with numerical modeling by using the conceptual model of sand-mudstone strata abstracted from actual sedimentary strata...
NUMERICAL SIMULATION OF PRESENT GEO-STRESS FIELD AND ITS EFFECT ON HYDRAULIC FRACTURING OF FUYU RESERVOIR IN GAOTAIZI OILFIELD
WU Ya, DAI Jun-sheng, GU Yu-chao, SHANG Lin, LIU Qiang
2014, 20(4): 363-371.
Abstract (261) HTML (147) PDF (8082KB)(23)
Abstract:
In the research of present geo-stress of Fuyu reservoir in Gaotaizi oilfield, the micro seismic data and the experimental data of rock velocity anisotropy are used to get the directions of present geo-stress of wells. On the other hand, hydraulic fracturing data and rock dynamic experiment including...
INFLUENCE OF ROCK MECHANICS PARAMETERS ON DEVELOPMENT OF FRACTURE
YUE Xi-wei, DAI Jun-sheng, WANG Ke
2014, 20(4): 372-378.
Abstract (357) HTML (119) PDF (2597KB)(32)
Abstract:
Elasticity Modulus, Poisson Ratio and density are key mechanical parameters of rocks. They have effect on development of fracture with other conditions unchanged. The study area of this paper is a gasfield in Tarim Basin. Based on the analysis of palaeo-stess field, we calculate the porosity of rese...
MULTI-SCALE LANDSLIDE HAZARD ASSESSMENT FOR KEY SECTION OF CHENGDU-LANZHOU RAILWAY, WENCHUAN SEISMIC REGION
WANG Tao, HU Qiu-yun, ZHANG Yong-shuang, WU Shu-ren, XIN Peng
2014, 20(4): 379-391.
Abstract (189) HTML (81) PDF (39604KB)(12)
Abstract:
Taking Longmenshan key section of Chengdu-Lanzhou railway in Wenchuan seismic region as an example, we explore a sort of multi-scale landslide hazard assessing method for major project site in strong earthquake afflicted area. The spatial distribution characteristics of coseismic landslides induced ...
GEOLOGICAL EVOLUTION AND HYDROCARBON RESOURCES POTENTIAL IN NORTH SLOPE, ALASKA
ZHANG Chun-yu, ZHAO Yue, WANG Luo
2014, 20(4): 392-403.
Abstract (335) HTML (315) PDF (20335KB)(16)
Abstract:
Based on the collected data and materials, we analyze the evolution of tectonic and stratigraphy in the North Slope of Alaska and conclude the history of exploration, geological features and the hydrocarbon resources. Four major sequences are described here which are Franklinian sequence (older than...
HYDROCARBON ACCUMULATION MODEL AND FUTURE EXPLORATION IN NORTHWEST SABAH BASIN
MA Liang-tao, LI Shi-xiong
2014, 20(4): 404-412.
Abstract (207) HTML (123) PDF (13147KB)(13)
Abstract:
Guided by hydrocarbon geological theory, through typical reservoir dissecting, it identifies the features of Northwest Sabah Basin reservoir. The result shows that three different hydrocarbon accumulation patterns can be built based on the research for characteristic of structure, sedimentary format...
THE DEVELOPMENT MODEL OF STRUCTURAL FRACTURES IN ORDOVICIAN RESERVOIR IN YUBEI AREA, TARIM BASIN
ZHANG Ji-biao, YUN Jin-biao, ZHANG Zhong-pei, LIU Shi-lin, HUANG Wei
2014, 20(4): 413-423.
Abstract (173) HTML (80) PDF (14556KB)(10)
Abstract:
Based on the identifying of fractures by the use of FMI, cores and slides data, the development law of structural fractures were summarized. The stages of structural fractures were classified according to the cross relation, the characteristics of cathodeluminescence and inclusions, and then the fin...
FAULT ACTIVITY FEATURES OF TONGCHENG FAULT ZONE IN JINHU SAG
ZHANG Xiang-cheng, DAI Jun-sheng, ZOU Juan, WANG Xin-xin, YUE Xi-wei, WU Ya
2014, 20(4): 424-433.
Abstract (225) HTML (112) PDF (21364KB)(23)
Abstract:
According to the interpretation of information of seismology and geology, structural features of Tongcheng fault zone is analyzed; the features and the stages of tectonic evolution are discussed. The research shows that the Tongcheng fault zone mainly develops NE-SW strike faults. Most faults are fo...
ROCK GEOCHEMICAL CHARACTERISTICS AND ORE-PROSPECTING PROGNOSIS IN THE BAIMIANSHAN METALLOGENIC FORECASTING AREA, NORTHERN GUANGDONG
QUAN Li-cheng, WEI Chang-shan, LUO Shuai, CAI Jin-hui
2014, 20(4): 434-445.
Abstract (170) HTML (71) PDF (13203KB)(15)
Abstract:
According to the Baimianshan metallogenic forecasting area geological investigation to the west of Dabaoshan Mo deposit, we know that this area highly developed fault structures, mainly for the NW, NE and nearly NW three groups, among them, the NW fracture formed in the earliest time while NE the la...
THE EFFECT OF SALT-GYPSUM DEHYDRATION ON THE DEVELOPMENT OF SALT DIAPIR: A CASE STUDY OF DONGYING SAG
SUN Xiang-fei, CHEN Yong, WANG Cheng-jun, WANG Xin-tao
2014, 20(4): 446-454.
Abstract (227) HTML (92) PDF (19057KB)(10)
Abstract:
There is a series of achievements about salt tectonics both at home and abroad. This paper points out that fluid in the tectonics development of the important role of salt, which is based on previous studies and the developmental characteristics of salt tectonics in Dongying sag. It contains a lot o...
SUPERPOSED FOLD: AN OVERVIEW
CHEN Long, SHI Wei
2014, 20(4): 455-468.
Abstract (147) HTML (159) PDF (8112KB)(51)
Abstract:
Superposed fold, representing one of the most significant structures, is predominately derived from multistage crustal shortening, documenting a multiphase tectonic evolution history in a certain region. In order to deepen the understanding of the superposed fold, this paper gives an overview of the...
CHARACTERISTICS OF GEOLOGICAL HERITAGE RESOURCES IN SHENGZHOU AND ITS PROTECTION
CAI Yao, ZHANG Zhong, TANG Xiao-ming, YOU Sheng-yi, YU Shu-jiao, FENG Hang-jian
2014, 20(4): 469-474.
Abstract (306) HTML (113) PDF (4937KB)(13)
Abstract:
Shengzhou has abundant geological heritage resources, especially for the landscape, paleontology and water landscape. Based on its characteristic and genesis, we classify the Shengzhou resources into seven types, with revealing the typical characteristic. The advice of protection and exploitation ha...

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