Shi Ze

Bio: Shi Ze is an academic researcher from Chengdu University of Technology. The author has contributed to research in topics: Mineral dust & Foreland basin. The author has an hindex of 1, co-authored 3 publications receiving 3 citations.

Study on structural characteristics and amount of cross section shortening in kuqa foreland basin: taking bc95 230 profile as an example

Abstract: The Kuqa depression is a new type of foreland basin, and its structural styles are characterized by Type Ⅱ triangle zones. A bedded plane of a complicated structural region can be regarded as a curve at two dimensional plane. By using fractal geometry, it can be described by fractal dimension. Through utilization of the balanced cross section technique and fractal method, and taking BC95 230 profile as an example, the amount of shorting and the strain distribution of cross section are calculated. The analytic results indicates that the bedded plane of N 1 has a D =1.0491 and 35.267 km of shortening and 50.05% strain. Because of affection of many geological factors including interlayer gliding, the calculated results by the balanced cross section technique have certain errors. So proper balancing geological cross section needs analysing the strain at small scales .

Controlling factors of tight sandstone in Silurian Xiaoheba Formation of Shizhu synclinorium and around area on the eastern edge of Sichuan Basin,China

Abstract: The authors chose the samples from four different sections in the same sedimentary micro-facies(sub-channel branch of delta front)in the Shizhu synclinorium and the around area on the eastern edge of Sichuan Basin,and analyze the controlling factors of the tight sandstone in the Silurian Xiaoheba Formation in terms of grain size,compaction,cementation,dissolution and the upgrowth of fractures.According to the analysis of the grain size,people don't think the sedimentary micro-facies can decide the character of the reservoir.Strong compaction and cementation are the main reasons that cause the reservoir tight,whereas dissolution and breakage can improve the physical property of the reservoir and they are the key factors for the high quality reservoir.Although the reservoir is tight in common,high quality reservoirs can still form in some favourable places.

The mineralogy character of the air dust near the ground in chengdu and its environmental indication significance

Abstract: Components of air dust near the ground in Chengdu City were studied by XFR and SEM and the results show that the mineral composition include quartz,feldspar,illite,chlorite,calcite and gypsum etc.The Scanning electron microscopy shows that the dust shape composed of compact irregular grain,sheet like mineral,irregular grain aggregate and sphericity vitreous.Magnifying the aggregate,sheet clay mineral and little simple mineral and algae can be seen occasionally.The spatial distribution of sphericity vitreous,illite,chlorite and gypsum is associated with industry layout and soil pH,and mainly composed of dust and industrial soot.Comparison of the composition of mineral with that of soil indicates that it mainly come from soil also.This study shows that the gypsum accounts for 8.2 percent in the air dust near the ground.It is maybe resulted from the large amount of coal burning and it is one of the reasons for the lack of acid rain in the Chengdu City.

Notice of Retraction The Time Effect Research on Heavy Metal Elements Pollution of Urban Industrial Fire Coal

Abstract: The heavy metal pollution made by industrial coal in city is receiving more and more attentions, but the time effect researches on fire coal capacity and heavy metal pollution after enterprise' relocation out of urban area are comparatively less. This paper studied the east Industrial zone, doing quantitative analysis on 5 types of heavy metal elements of coal samples, cinder, coal ash, topsoil, deep soil by x fluorescence analysis in 2004, 2006, 2009, discussing the time effect of urban air dust and soil heavy metal pollution during the process of reduced fire coal. The results show that: (1) urban industrial fire coal had spatial effect to heavy metal pollution, with a usual order such as floating dust > top soil> deep soil. (2) The reduction of fire coal would decline the contents of heavy metal in floating dust soon, but the soil especially the deep soil was still polluted by fire coal during a lasting time. (3) The shutting down of thermal power plant would make a positive effect on the recovery of air quality, however demolishing would cause more serious pollution without a series of environmental protection measures in the short period of time.

Characteristics and origin of the relatively high-quality tight reservoir in the Silurian Xiaoheba Formation in the southeastern Sichuan Basin.

Abstract: A mature understanding of the sandstone gas reservoir in the Xiaoheba Formation in the southeastern Sichuan Basin remains lacking. To assess the reservoir characteristics and the origin of the high-quality reservoir in the Xiaoheba Formation, this paper uses systematic field investigations, physical property analysis, thin section identification, scanning electron microscopy and electron microprobe methods. The results indicate that the Xiaoheba sandstone is an ultra-tight and ultra-low permeability reservoir, with an average porosity of 2.97% and an average permeability of 0.56×10−3 μm2. This promising reservoir is mainly distributed in the Lengshuixi and Shuangliuba regions and the latter has a relatively high-quality reservoir with an average porosity of 5.28% and average permeability of 0.53×10−3 μm2. The reservoir space comprises secondary intergranular dissolved pores, moldic pores and fractures. Microfacies, feldspar dissolution and fracture connectivity control the quality of this reservoir. The relatively weak compaction and cementation in the interbedded delta front distal bar and interdistributary bay microfacies indirectly protected the primary intergranular pores and enhanced late-stage dissolution. Late-stage potassium feldspar dissolution was controlled by the early-stage organic acid dissolution intensity and the distance from the hydrocarbon generation center. Early-stage fractures acted as pathways for organic acid migration and were therefore important factors in the formation of the reservoir. Based on these observations, the area to the west of the Shuangliuba and Lengshuixi regions has potential for gas exploration.

A Structural Interpretation Model and Restoration of the Mesozoic Proto‐basin for the Kuqa Depression, Tarim Basin

Abstract: A thrust‐fold belt consisting of a series of thrusts and buckling folds developed in the Mesozoic and Cenozoic strata within the Kuqa Depression, Tarim Basin. In this study, a structural interpretation model of the Kuqa Depression is established and the Mesozoic proto‐basin is reconstructed on the basis of outcrop geology along the basin margin, seismic, well‐log and CEMP data. The model is called ‘delaminate contractional deformation’, which emphasizes the decoupling between the Cenozoic, Mesozoic, pre‐Mesozoic and the basin‐basement within the Kuqa Depression, but there is no unified detachment. The model has a shortening amount ranging from 12 km to 16 km and the depth involved in contractional deformation ranges from 21 km to 28 km. A prototype of the Mesozoic basin reconstructed by interpretation model is a sub‐basin superposed on the transitional zone between the uplift at the northern edge of the Tarim Craton and the southern Tianshan orogenic wedge formed in the Hercynian orogeny. Lithospheric thermal and crustal isostatic activity after the Hercynian orogeny maybe the controlling dynamic factors of basin subsidence during the Mesozoic and early Cenozoic, the difference in rock mechanical properties between different levels, craton and orogenic wedge being the major cause of the ‘delaminate contractional deformation’ during the Himalayan orogeny.