Securing offshore resources development:A mathematical investigation into gas leakage in long-distance flexible pipes

Gas flexible pipes are critical multi-layered equipment for offshore oil and gas development.Under high pressure conditions,small molecular components of natural gas dissolve into the polymer inner liner of the flexible pipes and further diffuse into the annular space,incurring annular pressure build-up and/or production of acidic environment,which poses serious challenges to the structure and integrity of the flexible pipes.Gas permeation in pipes is a complex phenomenon governed by various factors such as internal pressure and temperature,annular structure,external temperature.In a long-distance gas flexible pipe,moreover,gas permeation exhibits non-uniform features,and the gas permeated into the annular space flows along the metal gap.To assess the complex gas transport behavior in long-distance gas flexible pipes,a mathematical model is established in this paper considering the multiphase flow phenomena inside the flexible pipes,the diffusion of gas in the inner liner,and the gas seepage in the annular space under varying permeable properties of the annulus.In addition,the effect of a variable temperature is accounted.A numerical calculation method is accordingly constructed to solve the coupling mathematical equations.The annular permeability was shown to significantly influence the distribution of annular pressure.As permeability increases,the annular pressure tends to become more uniform,and the annular pressure at the wellhead rises more rapidly.After annular pressure relief followed by shut-in,the pressure increase follows a convex function.By simulating the pressure recovery pattern after pressure relief and comparing it with test results,we deduce that the annular permeability lies between 123 and 512 m D.The results help shed light upon assessing the annular pressure in long distance gas flexible pipes and thus ensure the security of gas transport in the emerging development of offshore resources.

Historic Achievements in Developing Human Resources and Social Security

Guided by the state policy of reform and opening to the outside world, the Chinese Government has, by dint of hard work over the past three decades, by and large accomplished the task of building up a human resources and social security system. Good enough to serve China＇s goal of developing a socialist market economy, this system has contributed to the national endeavor to ensure and improve people＇s livelihood and to safeguard the stability of the reform-and-opening undertakings.

A Brief Discussion on the Construction of Practical Teaching System for the Traditional Chinese Medicine Resources and Development Major

China’s traditional medicine,science,and technology industry has great development potential.However,there is a problem of insufficient practitioners in the current industrial development.At the same time,the capabilities of existing practitioners do not match the demand standards.Therefore,it is necessary to actively promote the education of resources and development in Central Asia.As an institution for cultivating talents,colleges and universities must establish a practical teaching system for cultivating talents.Based on the requirements put forward by China in education,this article studies the development status of the traditional Chinese medicine resources and development major,determines the talent training goals,starts from the practical teaching aspect,and locates the industry’s requirements for the capabilities of personnel in the field of traditional Chinese medicine.It also puts forward the overall idea of the construction of the practical teaching system,summarizes the reform content of the practical teaching system,and lastly provides the specific path of the reform.

The temporal and spatial patterns and potential evaluation of China＇s energy resources development

The issue of China＇s energy supply security is not only the key problem which af- fects China＇s rapid and sustainable development in the 21st century, but also the one which international attention focuses on. Based on the notable characteristic of spatial imbalance between energy production and consumption in China, this paper takes the evolution of China＇s primary energy resources development（excluding hydropower） from 1949 to 2007 as the study object, with the aim to sum up the evolutive characteristics and laws of China＇s energy resources development in the past nearly 60 years. Then, based on comprehensive considerations of coal＇s, oil＇s and natural gas＇s basic reserves, qualities, geological conditions production status, and ecological service function of every province, this paper adopts development potential index （DP）to evaluate the development potential of every province＇s en- ergy resources, and divide them into different ranks. Conclusions are drawn as follows： （1） Generally speaking, China＇s gross energy production was increasing in waves from 1949 to 2007. From the viewpoint of spatial patterns, China＇s energy resources development has shown a characteristic of ＂concentrating to the north and central areas, and evolving from linear-shaped to ＂T-shaped＂ pattern gradually since 1949. （2） The structure evolution of China＇s energy resources development in general has shown a trend of ＂coal proportion is dominant but decreasing, while oil and gas proportions are increasing＂ since 1949. （3） At the provincial scale, China＇s energy resources development potential could be divided into large, sub-large, general and small ranks, four in all. In the future, the spatial pattern of China＇s energy production will evolve from ＂T-shaped＂ to ＂R-shaped pattern＂. These conclusions will help to clarify the temporal and spatial characteristics and laws of China＇s energy resources development, and will be beneficial for China to design scientific and rational energy development strategies and plans, coordinate spatial imbalance of energy production and consumption, ensure national energy supply, avoid energy resources waste and disorderly development, and promote regional sustainable development under the globalization back-ground with changeful international energy market.

Status of mercury pollution during resources development in Guizhou Province, China

Taking coal burning, mining and smelting in mercury mine as examples, this paper gives details on the environmental status in a typical mercury polluted area: (1) effects of mercury from mining and smelting on the environment in the mercury richest area in our country; (2) constitution of coal burning to mercury in the environment in areas where coal plays a leading role in energy structure.

Spatial Effect of Mineral Resources Exploitation on Urbanization:A Case Study of Tarim River Basin,Xinjiang,China

Mineral resources exploitation significantly affects the spatial structure and evolutive trend of urbanization in arid areas.In this study,the spatial autocorrelation method and the spatial computation model were used to investigate the spatial impacts of mineral resources excavation and processing on comprehensive level of urbanization in the Tarim River Basin,Xinjiang,China for the years of 2000,2006 and 2008.The results are as follows:1)There was a spatial correlation of the development of mineral resources industry and the comprehensive level of urbanization in 2006 and 2008,with the spatial concentration trend rising significantly in 2006 and decreasing in 2008.2)The patterns of local spatial concentration of mineral resources industry and of the comprehensive level of urbanization were relatively stable,and the two patterns showed signs of spatial correlationship.The higher was the degree of the concentration of mineral resources industry,the stronger was its impact on the spatial clustering of urbanization.3)In 2000, mineral resources excavation and processing had a significant positive impact on the comprehensive level of urbanization in the region but not in its adjacent regions.However,in 2008,mineral resources excavation and processing significantly raised the comprehensive level of urbanization not only in the region but also in its neighboring regions.This research demonstrates that the development of mineral resources industry can strongly affect the trends and spatial patterns of urbanization.

Priority-sequence of mineral resources' development and utilization based on grey relational analysis method

Generally, the sequence decision of the development and utilization of Chinese mineral resources is based on national and provincial overall plan of the mineral resources. Such plan usually cannot reflect the relative size of the suitability of the development and utilization of mineral resources. To solve the problem, the paper has selected the gift condition, the market condition, the technological condition,socio-economic condition and environmental condition as the starting-points to analyze the influential factors of the priority-sequence of mineral resources' development and utilization. The above 5 conditions are further specified into 9 evaluative indicators to establish an evaluation indicator system. At last,we propose a decision model of the priority sequence based on grey relational analysis method, and figure out the observation objects by the suitability index of development. Finally, the mineral resources of a certain province in China were analyzed as an example. The calculation results indicate that silver(2.0057), coal(1.9955), zinc(1.9442), cement limestone(1.9077), solvent limestone(1.5624) and other minerals in the province are suitable for development and utilization.

Cultivating New-type Farmers Based on the Theory of Human Resources Development

Under the direction of theory of human resources development,this thesis analyzes the impact of rural human resources development oncultivating new-type farmers.Firstly,it increases the input of rural basic education;secondly,it reinforces the vocational education and technologytraining;thirdly,it promotes the rural medical and public health services;fourthly,it quickens the rural labor transfer.The status quo of China's ruralhuman resources has been analyzed as follows:in terms of the quantity of rural human resources,the status quo is large and quick-developed baseof rural human resources,high labor participatory rate,and constitution of low age;in terms of the quality of rural human resources,the status quois the ubiquitous low quality of rural human resources,low technological level of rural human resources,and overall low physical quality of farmers;in terms of the structure of rural human resources,the status quo is the irrational industrial structure distribution and imbalanced regional structuredistribution.The thesis also discusses the edification of theory of human resources development in cultivating new-type farmers.First,in terms ofthe control over quantity of rural human resources,it is to keep the stability of family planning policy,and expedite the transfer of rural surplus la-bor;second,in terms of promoting the quality of rural human resources,it is to bolster the development of reserve rural labor force resources,toconstruct the adult educational training system with Chinese characteristics,and to build rural primary health care system;third,in terms of adjus-ting the structure of rural human resources,it is to perfect rural human resources market,and adjust rural economical structure and talents struc-ture.

A Study of Resource Curse Effect of Chinese Provinces Based on Human Developing Index

Traditional opinion considers that natural resources play an important positive role in economic development, while resource curse theory holds that natural resources usually obstruct economic increase. This debate needs further exploration. In most of empirical studies on resource curse theory, the economic development of an area is mainly evaluated by the Gross Domestic Product(GDP), however, the social and cultural contents of economic development are seldom considered. Thus, the Human Developing Index(HDI) was chosen to describe the comprehensive developing situation of an area in our study. Based on the panel data from the year of 2000 to 2011, the relationship between Human Developing Index and resource exploitation degree(RED) of 30 provinces in China(Tibet, Taiwan, Hong Kong and Macao were not included because of the restriction of data acquisition) was investigated by correlation coefficient analysis and regression analysis. We found that resource curse did exist over the entire country and its effect on 30 provinces were not exactly the same. According to the effects of resource curse, these provinces could be classified into four types: no resource curse provinces, slight resource curse provinces, severe resource curse provinces, and extreme resource curse provinces. Testing from two short time periods 2000–2005, and 2006–2011, the resource curse effect was not prominent. However, testing from the entire period of 2000–2011, the effect was obvious among each province.

COMPREHENSMIVE PLANNING FOR WATER RESOURCES EXPLOITATION AND WATER POLLUTION CONTROL FOR CHANGLI COUNTY--A CASE STUDY FOR SMALL TOWNS OF CHINA

One of the major characteristics about the water resources and water pollution in China is that the southem part of the country is endowed with abundant water resources with serious water pollution occurring in some areas, whereas the northem part is endowed with limited water resources with relatively more serious water pollution existing in some areas. Urban areas have been mainiy affected by point source pollution while ecological damage is most serious in rural areas and small towns. With rapid development of socio-ecomony and urbanization, many new small towns have occurred in China, and the concemed ecological problems such as water pollution and soil erosion have been gradually changed into local point source pollution. Water envirormental problems are geding more and more serious. To resolve the above mentioned problems and to provide a mode for towns in North China, the Research Center of Water Problems of Chinese Academy of Sciences undertook the research project of comprehensive planning of urban environment of Changli County, Hebei Province. Conceming the limited financial strength of the county and its relatively low level of socio-economic development, the planning is aimed to protect and to improve Changli's environment with the least cost, to promote the suitable development of socio-economy of Changli County, and to carry out effective environmental regulations, control and managemeat.

Analysis of Integration Mode of Human Resources Development and Cultural Ecology in Hebei Province

People and culture coexist and human resources development and regional cultural ecology integrate.The present thesis for the first time puts forward the integration mode of human resources development and cultural ecology,argues that personnel innovation should be attracted by motive injection,open culture,resources integration,culture dilution,thinking blending and people-orientation and discusses the transmission mechanism for functions of integration mode of human resources development and cultural ecology from the aspects of cultural values,living styles and cultural industry.

Genuine Medicinal Materials and Resources Development in Xinjiang

First of all,this paper introduces the concept,traditional and modern evaluation and conditions of genuine medicinal materials.It focuses on the current situation of genuine medicinal materials in Xinjiang,and suggests that we should strengthen the development,utilization and protection of genuine medicinal resources in Xinjiang from a professional point of view.

Entrepreneurs as decisive human resources and business performance for the Lao SMEs

Resource-based view （RBV） has been a very important theory to explain performance in the past decades. Among several types of resources, human resources are known as a critical factor for business success. The present paper has sought to link the human resources and performance based on the concept of RBV focusing on entrepreneurs as decisive human resources. This paper uses a sample of 378 Lao small and medium enterprises （SMEs）. Overall, the findings suggest that the significant factors in explaining performance in Lao SMEs are the education of entrepreneurs, business development services for entrepreneurs and experience of entrepreneurs. Whereas training at starting business and training for entrepreneurs were not supported.

A BRIEF INTRODUCTION TO THE EAST CHINA CENTER FOR RESOURCE ENVIRONMENT & SUSTAINABLE DEVELOPMENT STUDIES (RESDS) East China Center of Resources Environment and Sustainable Development Studies

The Center for RESDS is an R&D body for comprehensive study under the joint sponsorship of the CAS Nanjing Branch,Nanjing University and Hehai University, all being research and educational institutions in the vicinity of Nanjing. The Center’s headquarters are the CAS Nanjing Branch. The Center’s objective is to answer the challenge posed by the 21st century and serve the economic reconstruction across the land by marrying campuses with research institutes so that the center might grow into

Guizhou's Natural Resources Awaiting Development

Guizhou is one of the concentration provinces for natural resources in China. Most outstanding of these, in particular, are energy resources, mineral resources, biological resources and tourism resources. They occupy a very important position in the country. Guizhou’s natural resources are of multiple categories, high grade, huge re-

Development and Utilization of Potash Resources in Lop Nor,Xinjiang

The Lop Nor saline lake in the east Tarim basin,extends115 km from the south to the north,and 90 km from the east to the west,which covers an area of 10350 km2.It is the world’s largest dry saline lake,and is also so far the largest

Tourism Human Resources Development and Management Model Analysis

Human resources are the core of business development, the competition of modem enterprises, in the final analysis is the talent competition, which is the human development level of competition. Scenic spot enterprise view service quality as their development lifeline, rely entirely on high-quality staff to achieve, tourist attractions enterprise has its particularity industry： labor-intensive enterprises, but different from other manufacturing and other labor-intensive enterprises, They have high quality requirements for comprehensive employee quality, and therefore human resource development, compared with other enterprises, is more important and more challenging.

The Current Situation of Marine Resources Development and the Way of Marine Integrated Management

As a key factor of marine ecological composition,marine resources play an important role in promoting the development of marine economy.In view of this,in view of a series of problems existing in the process of marine resources development,this paper uses the method of literature review to put forward suggestions on marine resources development and implementation measures of management path,so as to escort the development of marine resources in the new era.

Deepwater and Deep Layers： the Strategic Choices for China＇s Oil and Gas Resources Development

On December 2, 2017, the 2nd Seminar on the Development Strategy of China＇s Oil and Gas Resources was held in Beijing. This seminar was hosted by the Strategic Research Center for Oil and Gas Resources, Ministry of Land （MLR） and Resources and sponsored by both the CNOOC Exploration Department and the School of Ocean and Earth Sciences of Tongji University. With the theme of ＂deepwater and deep-layer oil and gas resources and development strategy＂,