Advanced Materials Research Vols. 356-360

Abstract: Study area is located north Wazigou of Xiuyan jade mining area west extension, it has the North Wazigou jade ore-forming conditions are very similar. Based on the North Wazigou and Yu-long background of the two regions and the metallogenic geological conditions of the systems analysis, and summarized jade Metallogenesis, we can come to Yulong ore-forming region has good potential.

Abstract: Aim at the actual operating condition of Su Cuo buried oil pipeline, the simulation model of this pipeline operation was built by the simulation software of TLNET to simulate the running states of pipeline in different operating conditions. With the target of saving energy and reducing consumption, the operating parameters of this pipeline with different throughput and different seasons were optimized, and the optimization results can be used to guide the pipeline operation.

Abstract: Subtle reservoir is an important area of hydrocarbon exploration in Qiongdongnan basin. The reservoir hydrocarbon-bearing potential is one of the cores of this research, and the geophysical technology is the main research tool. In this paper, AVO, AVD, DR and seismic attenuation gradient techniques are carried out to evaluate the hydrocarbon-bearing ability. Taking the JY area of eastern Qiongdongnan basin as a case study, the results show that the characteristics of gas-bearing reservoir in JY area are the 3rd AVO anomaly, high AVD and DR, and low attenuation gradient. Furthermore, multi-information fusion technique is used to qualify the gas resource scale and provide decision-making advice for the future exploration. It shows that the seismic anomaly sand body of the first member of Sanya Formation in JY area has large gas resource potential and good exploration prospect.

Abstract: Abnormal temperature and pressure with their effects on deep reservoir is the frontier in petroleum geology. Taking Qiongdongnan basin as a case study, the geological settings of this basin are primarily analyzed in this paper. Then, based on the full consideration of sedimentation and diagenesis, effects of abnormal temperature and pressure on deep reservoir are discussed. Main conclusions are drawn as following: (1) high geothermal or geothermal gradient accelerates the reduction of sandstone porosity, (2) high geothermal or geothermal gradient can improve the reservoir properties by promoting the dissolution of carbonate minerals, the filling of hydrocarbon and the development of overpressure, (3) overpressure can preserve partial primary pores, (4) overpressure can inhibit the growth of some cements and slow down the destruction of diagenesis on deep reservoir, and (5) overpressure can generate some secondary pores by enhancing dissolution.

Abstract: Logging data, as representations of lithology and physical properties of stratum, hold abundant information related to sedimentary cycles with high vertical resolution. The use of various methods to extract and analyze corresponding information will greatly promote the quantitative level in the study of stratum sequence. SP mirror (spontaneous potential), the ratio of sand and mud, CN (neutron)-GR (natural gamma ray) curve overlay technique and wavelet analyses were comprehensively analyzed in this paper. Application in X block of Algeria that it has a great effect and is a good tool in the parasequence sets study. Continuously improve the level of utilization of logging data, full logging data in sequence stratigraphic analysis of the role and scope of application will be beneficial for the development of sequence stratigraphy.

Abstract: Under the influence of new land use planning, the condition of man-land harmony is received more and more attention, for the purpose of reaching the harmonization of social, economic and ecological benefits, then realizing sustainable land use. Therefore, an effective way to optimize land space utilization and to improve the overall efficiency is necessary. This paper focused on integrated zoning study of land use taking Pu county as a case. Firstly, the study built an index system; then used principal component analysis and cluster analysis method. The results showed three integrated land use areas were formed according to functional characteristics in leading industries, which can not only provide a reference for land-use zoning of the study area, but also ensure rational and efficient use of the regional land resources, ultimately promoting coordinated regional development.

Abstract: The purpose of this paper is to establish a complete appraisal system and study on comprehensive environment risk assessment of brownfield reuse in procedure and method through the case of Xishan District, according to life cycle theory. Methods employed include system analysis, analytic hierarchy process and grey evaluation method. The result shows that,(1) The life cycle of brownfield reuse can be divided into three stages which are the confirmation and preparation stage, the control and treatment stage, the maintenance and supervision stage, including policy and legal risk, economic risk, organizational risk, pollution risk, etc, eight elements.(2)the environmental risk of Xishan District is in medium level. Additionally, due to the polluting and complexity of brownfield, it should be respond to the necessary control. It is concluded that the comprehensive environment risk assessment of brownfield reuse has high scientific and practical by using analytic hierarchy process and grey evaluation method.

Abstract: Roadside soil, dusts, and three ornamental plants-Begoniaceae (Begonia semperflorens Link et Otto), Tagetes (Tagetes erecta Linn.), and Salvia (Salvia splendens Ker-Gawle) were collected from urban arteries in Nanjing City, China. Concentrations of metals (Pb, Cd, Cu and Zn) were analyzed using inductively coupled plasma atom emission spectrometry and inductively coupled plasma mass spectrometry. Cd was the most important contaminant in roadside soil and dusts. Generally, Begoniaceae accumulated more metals than Tagetes and Salvia. The order of bioconcentration factor values for three kinds of plants were Cd > Cu > Zn > Pb, suggesting Cd was more easily accumulated by ornamental plants than Zn and Pb from soils to roots. The values of the translocation factor show the significant species specific characteristics on the ability of metals (Cd, Cu, Zn and Pb) translocation from roots to leaves. Begoniaceae was recommended as a bioindicator of heavy metals in the urban environment.