2001 Vol. 7, No. 1

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BASIC FEATURES AND FORMATION MECHANISM OF PARANEOCATHAYSIAN EXTENSIONAL BASINS SYSTEM
QIU Yuan-xi
2001, 7(1): 1-8.
Abstract (182) PDF (309KB)(6)
Abstract:
There develop a series of dextral transtesoinal fault basins (graben and half-graben) trending NNE since the late Mesozoic (Cretaceous period) in the continental margin of East China and West Pacific Ocean. These basins were arranged as zigzag pattern in the plane view. Under these fault-basins deve...
STRUCTURAL FEATURES, STRESS FIELDS AND STRAIN FIELDS IN FENGHUANGSHAN SILVER MINE AREA, GUANGXI, CHINA
HUANG Ji-jun
2001, 7(1): 9-21.
Abstract (246) PDF (361KB)(32)
Abstract:
Fenghuangshan silver deposit is located in a fault zone which occures along the nortern limb of Xiomingshan fold belonging to Damingshan anticlinoyinm. In the mine area, faults are dominant structures in comparsion with folds and there are three group of faults, WNW-ESE or EW, NE-SW and SN-oriented,...
GENERAL FEATURES OF THE WESTERN GUANGDONG NAPPE TECTONIC SYSTEM AND ITS CONTROL ON THE NOBLE METAL AND POLYMETALLIC DEPOSITS
ZHU Da-gang, MENG Xian-gang, PENG Shao-mei, FENG Xiang-yang, SHAO Zhao-gang, WANG Jian-ping
2001, 7(1): 22-32.
Abstract (203) PDF (428KB)(8)
Abstract:
The western Guangdong nappe tectonic system was formed in the Hercynian and Indosinian epech. Its tectonic styles belong to the folding and thrusting nappe structure, the extended way is piggyback propagaton. The allochthon consists of the Presinian, Sinian and Cambrian Systems. The autochthon compr...
TECTONIC DEFORMATION OF YAKERLA-LUNTAI REGION IN NORTH TARIM BASIN AND ITS CONTROL ON OIL/GAS ACCUMULATION
ZHOU Xin-gui, SUN Bao-shan, XU Hong-jie, DUAN Tie-jun, SHE Xiao-yu
2001, 7(1): 33-40.
Abstract (188) PDF (308KB)(7)
Abstract:
In the present paper, the tectonic deformations of the Yakela-Luntai region of North Tarim basin and their evolution have been detailedly described. It is considered that the most important factors controlling oil/gas accumulation comprise long sustained uplifting, repeated faulting, presence of unc...
THE EFFECT OF EFFECTIVE PRESSURE ON POROSITY AND PERMIEABILITY OF LOW PERMEABILITY POROUS MEDIA
LIU Jian-jun, LIU Xian-gui
2001, 7(1): 41-44.
Abstract (358) PDF (129KB)(13)
Abstract:
On the basis of experimental study,the law of porosity and permeability versus effective pressure are developed, Because porosity of low permeability media is very small, a little change of its porosity can make its permeability decline rapidly. The paper is useful in solid-fluid coupled simulation ...
AN ANALYSIS ON THE PRINCIPAL CONTROL FACTOR OF COAL RESERVOIR PERMEABILITY iN CENTRAL AND SOUTHERN QINSHUI BASIN,SHANXI
FU Xue-hai, QIN Yong, LI Gui-zhong, LI Tian-zhong, HU Chao
2001, 7(1): 45-52.
Abstract (211) PDF (259KB)(14)
Abstract:
According to measurement and statistics of down coal mine macrofractures were classified into four ranks,and systemically described and measured under scan electron microscope. Based on the analysis of relationship between permeability and ground stress/buried depth, fractures, reservoir pressure, h...
STRENGTH CRITERION AND INTERNAL FRICTION COEFFICIENT OF ROCK SPECIMEN
YOU Ming-qing, HUA An-zeng
2001, 7(1): 53-60.
Abstract (340) PDF (273KB)(19)
Abstract:
Rock is heterogeneous material with various flaws. The ideal strength of rock specimen can be determined from its complete stress-strain curve. After specimen is failed the experiment, reducing confining pressure and keeping the constant axial deformation, was carried out. According to the experimen...
THE MEASUREMENT AND STUDY ON IN SITU STRESS IN THE CENTRAL AREA OF THE HUANGCOU ACCUMULATION POWER STATION, HEILONGJIANG
WU Man-lu, LIAO Chun-ting
2001, 7(1): 61-68.
Abstract (232) PDF (251KB)(9)
Abstract:
Based on the results from in situ stress measurement in Huanggou Accumulation Power Station,Heilongjiang, the authors analyse the characteristics of the in situstress. The calculation of measurements from four sites in underground plant by method of least squares shows that the maximum principal str...
APPLICATION STUDY OF THREE DIMENSIONAL GEO-STRESS MEASUREMENTS BY USE OF HYDRAULIC FRACTURING METHOD
CHEN Qun-ce, LI Fang-quan, MAO Ji-zhen
2001, 7(1): 69-78.
Abstract (190) PDF (310KB)(28)
Abstract:
The theoretical model created based on minimum principal stress criteion is a new thinking of the three dimensional geo-stress measurements made by hydraulic fracturing method. According to the theoretical study and in consideration of real situation of test, this paper emphasizes on the influence o...
THE EVOLUTION OF MESOZOIC-CENOZOIC BASIN-MOUNTAIN STRUCTURE IN THE EAST YANSHAN AREA AND XIALIAOHE BASIN
MA Yin-sheng
2001, 7(1): 79-91.
Abstract (242) PDF (458KB)(13)
Abstract:
The author discussed the pre-Mesozoic structure background and the Mesozoic-Cenozoic basinmountain structure evolution in the east Yanshan area and Xialiaohe Basin. The author considers that the Mesozoic-Cenozoic structure evolution process in the east Yanshan and Xialiaohe Basin is a alternate proc...
RESEARCH ON MARBLE KAISER EFFECT AFFECTED BY TIME FACTOR
FAN Yun-xiao
2001, 7(1): 92-96.
Abstract (238) PDF (195KB)(10)
Abstract:
Marble specimens were reloaded after two months to investigate that time factor has influence on Kaiser effect. The results show that after two months the marble has poor ability to remember its previous stress and strain, but can remember its previous damage very accurately. Therefore from the view...

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