■SPECIAL TOPIC

Thoughts on CNPC’s 14th Five-Year Plan Regarding Belt and Road Initiative (BRI)………………Ding Peng, Zhang Xiuling, Shen Juexin （6-01）

Open Innovation to Assist the Formulation of CNPN’s 14th Five-Year Plan…………Tian Chengkun, Cao Bin, Zhang Junxian, et al.（6-05）

Challenges and Suggestions to Gas Storage Development during the 14th Five-Year Plan Period………………………Liu Ye, He Gang, Yang Lina, et al.（6-09）

Prospect of Oil and Gas Field Surface Engineering in the 14th Five-Year Plan Period……………Yun Qiang, Xiong Xinqiang, Wu Hao, et al.（6-14）

■OIL AND GAS PERSPECTIVE

Impact of COVID-19 on China Natural Gas Market and Strategies……………Shen Xin, Hao Yingpeng, Han Kejiang, et al.（3-01）

Impact of COVID-19 on Domestic and Foreign Oil Markets………………Kong Jinyuan, Qiu Xuan, Ding Shaoheng（3-04）

■FORUM

Research on Innovative Trading Mechanism for State-owned Enterprises’ Overseas Oil and Gas Merger & Acquisition………………………………Xu Dong, Yan Fei, Shi Kai （2-01）

Preliminary Concept of Using Airship as a Method of Shipping LNG to Establish New Energy Transportation Route……………………Li Jian（2-05）

Research and Application of Remote Sensing Technology for Pipeline Route Selection in Loess Hilly Areas………………………………………………Yang Weitao（2-10）

Discussion of Engineering Technology Supports in Oil and Gas Cooperation along“the Belt and Road”……………………………………………Wang Yusheng（3-10）

Research on Technical Route Selection of Electric Heating and Electrical Load Calculation…………………………………………………Tang Wei（3-13）

Progress and Prospects of Clean Heating in Winter Seasons in North China……………Zhao Wenying, Yu Changyou, Tang Fei, et al.（3-18）

Review and Prospect of Natural Gas Industry Chain Development in 2019…………………Gao jie, Zhao Zhongde, Li Yutian, et al.（4-01）

Development Process and Trend of Energy Transformation…………Sun Shichang, Yue Xiaowen, Du Guomin, et al.（4-05）

Progress and Prospect of Natural Gas Heating in Northern China…………………Sun Hui, Min Junhao, Wang Jun, et al.（5-01）

■REVIEW

Quantitative Risk Assessment Application in Sour Gas Pipeline…………………Li Shiqi, Sun Mingnan, Guo Xiaoxiong （1-01）

Considerations on Building an Emergency Repair System for Natural Gas Pipelines…………………………Zhao Yan, Li Xinkai, Liu Zhifu（1-06）

Application of the Optic Fiber Forewarning System for Long-distance Pipeline Integrity Management…………………Zhang Cong, Yu Shengyang, Li Xingtao（1-09）

Corrosion Effect of Sodium Chloride Mixed System on Common Equipment Material used in Injection……………Li Jinling, Weng Huifang, Wang Chao, et al.（1-13）

Achievements and Prospects of Improving Quality and Efficiency of Surface Engineering in Oil and Gas Fields…………………Liang Yuejiu, Guo Feng, Zhang Weizhi（2-14）

Natural Gas Market Analysis and Discussion on Gas Supply Scheme in the East of Inner Mongolia…………………Yang Yi, Han Kejiang, Liang Yan, et al.（3-23）

Internal Corrosion Study in Low Flow-Rate Purified Oil Pipeline………………Li Yan, Li Chenglong, Zang Guojun, et al.（4-10）

Study on CO2-H2S Corrosion Behavior and Mechanism of X65 Steel………Xie Jun, Gao Changzheng, Shan Xiaokun, et al.（4-13）

Several Problems to Be Paid Attention to The 14th Five-Year Plan on Oil Sale Marketing………………………………………………Xing Zhihe（5-06）

Propylene Oxide Production Process and Supply-Demand Analysis…………………Wang Luyao, Li Jianxin, Chen Huimin（5-09）

Progress and Development Trend of Digital Construction in Oilfield……………………………Zhang Dandan, Cao Wanyan（5-12）

Research Status and Prospect of Oil-Water Two-Phase Flow Pattern……………Liu Wensheng, Zhang Lei, Kang Yan, et al.（5-16）

■PLANNING

Production Facilities Development Strategy of an Iraqi Oilfield………………………………………………Li Hairong （4-18）

■SCIENTIFIC RESEARCH

Experimental Research on Low-temperature Gathering and Transportation of Gas-bearing Oil Wells in High Water-Cut Period…………………Zhang Yang, Song Chen, Liu Jie, et al.（1-39）

Research Review of Carbon Recovery from Domestic Sewage through High-loaded Activated Sludge Process………………Jiang Haixin, He Yi, Chen Hongbin, et al.（2-29）

■PROCESS

Discussion on Low-sulfur Natural Gas Purification Process in Sangnan Treatment Station……………Liu Yuan, Zhang Lei, Wang Yingquan, et al.（1-18）

Optimization of Water Injection Pump Distribution for Injection System in Xingbei Oilfield…………………………………………………Jiang Huai（1-22）

Key Technology Research on Surface Process of Oil Displacement by Air Injection………………Yang Jing, Zhao Xinjian, Wang Tao, et al.（1-26）

Influencing Factors Analysis on the Water Treatment Process………………………………Yu Yang（1-31）

Technical Application for Oil-water Separation and Short Flow Reinjection of Produced Liquid in Zhongyuan Oilfield…………Yang Dongbo, Wang Qingling, Chen Hongjie（1-36）

Research on Simplification and Optimization for Oil Collection Process outside Crude Oil Treatment Station……………………Liu Bin（2-17）

Sewage Treatment System Technology Transformation in Yass Oilfield………………………Tian Donghai, Liu Fuyun, Mu Yan （2-22）

Research and Application of Intelligent Control and Production Technology for Steam Flooding Process in Block Du229……………………………………………Sun Zhenbiao（2-25）

Optimization of Oxygen-Reduced Air Production in Airflood Oil……Liao Guangzhi, Wu Hao, Wang Hongzhuang, et al.（3-29）

Vane-Pump Application in Gas Shallow Cooling Facilities……………………………Zhang Bing（4-23）

Application of Crude Oil Engine in Long-Distance Crude Oil Pipeline………………………………Chen Si（4-26）

Research on Technology Adaptability for Exhaust Gas Treatment in Sulfur-Containing Natural Gas Purification Plant……………Zhang Lei, Zhang Zhe, Wang Shiyang, et al.（5-22）

Analysis of Factors Affecting Viscosity Loss of Polymer Injection System……………………………………………Wang Wenhao（5-26）

Boundary Conditions of High Water-Cut Crude Oil Gathering and Transportation at Ambient Temperature……………………Li Pengliang（5-30）

Application of Reinforced Thermoplastic Composite Pipe in Oil and Gas Fields and Suggestions for Key Performance Control………………………Han Fangyong, Liu Liu, Liu Qing（6-19）

Surface Engineering of Water System Construction Mode and Key Water Treatment Technology in Shale Gas Development………………Zhu Jingyi, Xie Weihong, Li Bing, et al.（6-22）

Study on Surface Technology of Fire Flooding Pilot Test in Menggulin Oilfield………Li Xincai, Zhang Guangyu, Shen Wenpeng, et al.（6-25）

Optimization of Pipeline Network Deployment during Progressive Production Period in Dongsheng Gas Field………………………Peng Jie（6-29）

The Practice and Application of Job Cycle Analysis in Liaohe Oilfield Double 6 Gas Storage……………………………………………Chen Wanjun（6-32）

■ENGINEERING DESIGN

Calculation of Overcurrent Protection in 10 kV Incoming Line Direction…………………Bai Fengjuan （1-46）

A Test-Simulation Platform Design for Hot Tapping and Plugging………………………………………………Miao Sheng（4-29）

Necessity of Three-Dimensional Collaborative Design of Petrochemical Engineering Construction Projects……………………Ma Jianhua, Lu Yi, Zhang Yi, et al.（5-35）

Research on Application of Building Exterior Wall Insulation Materials in Xinjiang Area……………………………………………Zhou Junlong（5-39）

■ECONOMY

Unit Price of Manpower Quota of Engineering Cost and Market-oriented Reform Exploration………………………………Zhou Shouqu, Zhou Bojun （2-36）

Optimization of Steel Bar Quantity and Price in Bill of Quantities——Tender Offer for Steel Bar List of Pile Cap……………………Hao Cunhe, Wang Ya, Hu Yudi, et al.（4-34）

Cost and Environmental Benefit Analysis of Clean Heating Technologies in Northern Rural Area……Zhao Wenying, Deng Gaofeng, Guan Yunlong, et al.（5-41）

■ECONOMY AND MANAGEMENT

Analysis of Project Management Decisions Based on Duo-Factor Uncertainty and Risk……………Hao Yuqian, Bai Xiao, Zhao Wenzhen, et al.（3-33）

Discussion on Integrity Managing Existing Gas Transmission Pipeline from Perspective of Urban Planning……………………………………Wang Qin, Liu Tong（3-39）

■COMPUTERS APPLICATION

Outlier Detection Method in Behavior Analysis of Refined Oil Retail Customers……………………………………Sui Yi, Feng Weirong （4-39）

■INFORMATION AND AUTOMATION

City Gas Sales of "Internet plus"…………………………………Wang Ailing, Jin Qiang（2-40）

Data Analysis for Intelligent Management & Maintenance of Oilfield Surface Facilities Operations…………Wang Xiaohan, Ren Xinhua, Wu Jiahuan, et al.（3-42）

Design and Application of Dynamic Production Monitoring System in Heavy Oil Dehydration Station………………………Han Shuai（3-45）

PID Controller based on PLC Application in Injection Station System………………Lou Hongliang（4-43）

Remote Diagnose for an Abnormal Working Conditions of Pumping Wells…………………Xia Yong（4-47）

Research and Application of Precision Marketing Targeting Refined Oil Customers Based on K-Means………………………Zhang Xi, Sui Yi, Hao Jing, et al.（6-35）

Brief Study on Construction of Communication Network in Intelligent Oil and Gas Field…………………Fang Li, Yang Shihai, You Jingxi, et al.（6-40）

■MANAGEMENT

Research on Informatization Agile Project Management Transition Scheme and Application………………………………Sui Yi, Zhang Xi, Chen Xu （1-49）

Financial Risk Analysis and Countermeasure Discussion for Construction Enterprise………Hao Lina（1-54）

How to Strengthen the Effectiveness and Execution of Safety Training for Crew of Petrochemical Enterprises…………………Li Peng, Deng Wei, Wang Zhuo, et al.（1-57）

Issues that Russian Oil and Gas Field Project Contractors Should Pay Attention towhen Managing the Delivery of As-build Documentations…………Lin Quanquan, Fan Haicheng, Zhang Jicheng（2-45）

Management Experience for a Large-Scale Refinery Project Construction………………Wang Liang, Wang Congying, Wang Yong（4-50）

Analysis of Long-Distance Pipeline Occupancy…………Ma Yubao, Yao Huiping, Huang Zixuan, et al.（5-45）

Discussion on Failure Management of Metal Pipe in Domestic Oil & Gas Field………Zhang Ailiang, Tang Dezhi, Zhang Weizhi, et al.（5-49）

Discussion on Energy Audit of Oil and Gas Production…………………………Chen Yanfei, Liu Bo, Yu Jiqing（6-44）

Analysis of Technical Changes of Managing System Integrity of Gas Pipelines(ASME B31.8S—2016)……………Ma Weiping, Liu Haipeng, Zhao Wei, et al.（6-48）

Optimization for LNG Transportation Model on the Yangtze River……………………Wang Jingzhou（6-52）

Practice and Application of Job Cycle Analysis in Liaohe Oilfield Double 6 Gas Storage………………………………Chen Zhijun, Tang Liang（6-59）