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28 February 2017, Volume 36 Issue 1 Previous Issue    Next Issue

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Evolution of CNPC Development Strategy Wan Hong, Sun Renjin, Shuai Jianjun, Zheng Weijing 2017, 36(1): 1-6.  DOI: 10.3969/j.issn.1002-302x.2017.01.01 Abstract ( )   PDF (1818KB) ( )   Strategy is a company’s unified plan for panorama of its business conditions and long-term development direction. It serves as an action platform for the company’s development. CNPC has pursued the “put strategy first” conception, adhered to the research on corporate development strategy, and enhanced the efforts for formulation and implementation of strategy since restructuring of the company. The corporate development strategy has come under four main adjustments: (1) From restructuring to 2004, the company defined the corporate guideline and five major strategies and determined the strategic principles for establishing itself into a multinational group with international competitiveness. (2) In 2005, the company started to implemented three major strategies and formulated the strategy to build itself into a first-class socialist modernized enterprise and a multinational group with international competitiveness. (3) In 2008, the company came up with the strategic objective to build itself into an integrated international energy company. (4) The company has strived to build itself into the world’s first-class integrated international energy company under the principle of sustainable development and on the basis of four major strategies since 2016. In the 18-year development process, CNPC gradually established a complete set of perfect and characteristic strategic system that has enabled the company to make a lot of development achievements.

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Use Assets Optimization Package Method for Settlement of Cost-effective Development Issues under Low Oil Prices Qu Debin, Li Rong, Zhu Ming, An Qi’er 2017, 36(1): 7-11.  DOI: 10.3969/j.issn.1002-302x.2017.01.02 Abstract ( )   PDF (2559KB) ( )   Low oil prices enabled the Chinese oil companies to face a stern challenge for cost-effective development in the upstream sector. How to solve the difficulty in cost-effective development is an issue of urgency facing oil companies. This paper introduces the assets optimization package method adopted by international oil companies in the new round of nonconventional oil and gas revolution in North American region, and comes up with the assets optimization package model of China’s oil companies under low oil prices, namely appropriately increasing investment in old oil area while reducing to-beconstructed productivity. The efforts should be focused on improvement of producing degree in old oil area, increasing the recoverable reserves in old area and drilling less new wells for reduction of investment. Analysis of optimization cases at the oilfields indicates that good economic performance can be achieved by means of this assets optimization package method.

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Patent Value Evaluation System of PetroChina’s Refinery Segment and Research on Its Application ---Evaluation of Patents Awarded with “China Patent Prize” Li Yan, Wang Lingling, Cao Fengxia, Li Xiaoyan 2017, 36(1): 12-18.  DOI: 10.3969/j.issn.1002-302x.2017.01.03 Abstract ( )   PDF (2397KB) ( )   This paper is focused on evaluating some of the patents in PetroChina’s refinery segment, which are awarded with China Patent Prize. The patent value evaluation system of PetroChina’s refinery segment, patent value evaluation system of Intellectual Property Press and Innography Patent Strength Analysis System are used as tools for evaluating and analyzing the value of the prized patents. Based on the evaluation results, the evaluation system of PetroChina’s refinery segment is not only basically in line with that of Intellectual Property Press but also more scientific and more adaptable. It is more suitable for evaluation of the prized patents. The evaluation system can be adjusted and perfected according to the requirements to make the evaluation results more scientific so that it can be more widely used in the various links of PetroChina’s refinery IPR management.

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Analysis of Technological Innovation Efficiency by Petroleum Enterprises against The Belt and Road Initiatives Background ---Evaluation based on BP Neural Network Zhong Shuli, Yang Yang, Gao Qingxin, Yu Xiaozhong 2017, 36(1): 19-25.  DOI: 10.3969/j.issn.1002-302x.2017.01.04 Abstract ( )   PDF (2658KB) ( )   With the progress in technological areas, the growth mode of global petroleum industry has turned to technological innovation from high investment to stimulate business development. The Belt and Road Initiatives provides the Chinese petroleum enterprises with an excellent opportunity to implement the “go-world” strategy but sets higher requirements on their technological innovation. Focusing on China’s big-three oil companies (CNPC, Sinopec, CNOOC), this paper formulates the index system on the basis of investment and output and adopts the experts’ opinion method to determine the indexes and their weights. Research investment and output are the main factors influencing technological innovation efficiency of the enterprises. BP neural network model is adopted to evaluate technological innovation efficiency of the petroleum enterprises. The study indicates that China’s big-three oil companies rank the middle of the world’s level and slightly exceeds the average for their technological innovation efficiency. They still have enormous space for improvement in this area.

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Suggestions on CNPC Cementing Technological Development Qi Fengzhong, Liu Shuoqiong, Shen Jieyun 2017, 36(1): 26-31.  DOI: 10.3969/j.issn.1002-302x.2017.01.05 Abstract ( )   PDF (2261KB) ( )   Based on the technological research during the “12th Five-year Plan Period”, CNPC has made a significant progress in cementing technological areas, such as long cementing section well with a large temperature differential, deep-layer complicated natural gas well, shale gas well and gas storage well. Displacement efficiency is also improved substantially at the same time. Good results have been achieved in field application of cementing materials, such as hightemperature resistant cement slurry, large temperature differential cement slurry, flexible cement, phosphate cement, and self-healed cement. Conventional cementing tools become increasingly mature while breakthroughs are made in special cementing tools. Cementing equipment is also modernized with the progress in intelligent technology for cementing quality control. Cementing theoretical research is enhanced in the areas of cement sheath sealing integrity and set cement toughness modification mechanism. The cementing sector will face a series of new challenges in the “13th Five-year Plan Period” owing to the influences of such factors as the increasingly complicated targets for oil and gas exploration and development, low oil prices, less workload and technological competition. It is necessary to improve technological creativeness and core competitiveness. The sustainable efforts research work should be focused on complicated deep well and super-deep well, complicated natural gas well, complicated adjustment well, non-conventional oil and gas well, and wellbore sealing integrity, providing more effective technological support for oil and gas exploration and development.

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Current Conditions and Outlook of CNOOC Cementing Technological Development Luo Yuwei, Zhao Hu, Song Maolin, Feng Yingtao 2017, 36(1): 32-36.  DOI: 10.3969/j.issn.1002-302x.2017.01.06 Abstract ( )   PDF (3285KB) ( )   China’s offshore oil and gas exploration and development has been set on the track of high-speed development since the 12th Five-year Plan Period. Offshore cementing faces sterner challenges under the complicated well conditions, such as super-deep water, high temperature and high pressure, and shallow-layer gas. Based on the cementing technological research projects in the 12th Five-year Plan Period, COSL has developed a series of high-functional cementing additives, perfect cementing process technology, accurate cement slurry appraising instrument and stable and reliable cementing equipment. Significant progress has been made in such cementing areas as cement sheath integrity under high temperature and high pressure, deepwater, shallow-layer gas and high-pressure gypsum. This paper focuses on low oil prices, new exploration areas, production at old oilfields and safety and environmental protection and looks forward into future offshore cementing technological development direction. It is pointed out that cementing products calls for serialization and standardization while the efforts for creation and research should be focused on the well-tailored cement slurry system and cementing technology and tools.

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Research Progress and Development Orientation of Oil and Gas Field Surface Engineering Technology Bai Xiaodong, Wang Changlian, Ba Xili, Yun Qing, Fu Yong 2017, 36(1): 37-41.  DOI: 10.3969/j.issn.1002-302x.2017.01.07 Abstract ( )   PDF (2387KB) ( )   During the 12th Five-year Plan period, CNPC launched important surface engineering technological research projects, aiming to transform oil and gas development patterns, satisfy the development and production demand for steamflooded heavy oil fields, high-acidic gas fields and coal-bed methane. Therefore, it has developed a series of technologies, such as surface process for steam-flooded heavy oil production, cost-effective heavy oil development, simplification of condensate gas field, safety of high-acidic gas field development, and mixed transportation of oil and gas. In addition, a series of standards, specifications and technological instructions were formulated to technically support CNPC in its efforts to accelerate natural gas business and stabilize crude oil production while providing the company with the benchmarking basis and development strategy for further improvement of performance in the surface engineering area. The technological system, established in the research projects and used in production, supported the new oil and gas development patterns, reduced investment and operational expense, partly solved safety and environmental issues, and improved the creativeness of professionals in their technological research efforts. The study points out that the future surface engineering technology will develop in the direction of “closed and highly-efficient process, cost-effective and low energy consumption, and intelligent and reliable safety and environmental protection.”

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Comprehensive Evaluating Method for Oilfield Development Plan Li Bin, Bi Yongbin 2017, 36(1): 42-48.  DOI: 10.3969/j.issn.1002-302x.2017.01.08 Abstract ( )   PDF (2026KB) ( )   Evaluation is an indispensible and important step in formulation of the long- and medium-term oilfield development plans. It also serves as the important basis for making decisions. The content of the plan should include evaluation on implementation of the previous plan, geological evaluation, oil reservoir engineering evaluation, drilling engineering evaluation, surface engineering evaluation, economic evaluation and risks evaluation. From the angle of comprehensive evaluation, the content can be summarized into comprehensive evaluation following execution of the previous plan, comprehensive evaluation on optimization of the planned scheme, and comprehensive evaluation on risks for the plan, particularly risks evaluation and early warning. The key of comprehensive evaluation in those three kinds is to set the related evaluating indexes and weighting elements. This article takes the 12th Five-year Plan of Jidong Oilfield for instance and demonstrates the comprehensive evaluation process and warning instructions.

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Latest Shale Gas Drilling Technological Development Li Dongjie, Wang Yan, Wei Yuhao, Zhang Bin, Yu Jiantao, Zhang Bo, Liao Moran 2017, 36(1): 49-56.  DOI: 10.3969/j.issn.1002-302x.2017.01.09 Abstract ( )   PDF (3831KB) ( )   With shale gas development technology becoming increasingly advanced and mature at the present time, horizontal well technology and large-scale reservoir reconstruction hold the key to non-conventional oil and gas development. This paper follows up and studies the typical new technology applied in horizontal well development of shale gas in foreign countries in recent years. For example, some new and advanced drilling tools appeared, such as rotary steering close-loop system, electromagnetic wireless MWD device, new-type open-hole whipstock sidetracking, and imaging tool while drilling. In the areas of drilling bit and drilling fluid, foreign oil companies like Baker Hughes developed and manufactured PDC drilling bits of the ONYX II Spear and Talon 3D vector families to highlight the shale characteristics while creating and optimizing many new-type high-functional water-base drilling fluids. They have continually studied modernization of the “well factory” service model. Based on the current domestic technological conditions, the article proposes that China’s shale gas drilling technology should be localized as soon as possible, especially for key technology and tools. More efforts should be focused on the study of cost-effective substitute technology, bringing about reservoir geological and engineering integration for high economic performance in shale gas development.

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Current Conditions and Development Trend of Energy-storing Technology and Industry Yu Benshan, Sun Naida, Jiao Jiao 2017, 36(1): 57-61.  DOI: 10.3969/j.issn.1002-302x.2017.01.10 Abstract ( )   PDF (2380KB) ( )   Energy-storing technology plays an important part in energy conversion and its application holds the key to renewable development and the destiny of energy Internet construction. Energy-storing technological development and application have been regarded more and more important in various countries, leading to a significant progress in the related key systematic technologies. A series of technologies is brought under or close to industrialization, such as aircompressed energy-storing technology, flow battery, and lithium-sulfur battery. Hydrogen fuel cell, as the main direction for fuel cell, comes under a wider application. Heat-storing technology is also experiencing a rapid development but requires more attention from the market. Propelled by rapid development of renewable energy, electric-powered vehicle and energy Internet industries, energy-storing industry has a trend for explosive growth. With a continual decline in storage cost of renewable electricity, application scale and technological cost of energy-storing system will enter into a new stage of positively-cycled development. Battery technology for electric-powered vehicles is expected to see a significant breakthrough with a promising market prospect.

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Patent Analysis of Cementing Additives Applied by Halliburton Di Weina, Zhao Gufan, Li Jing 2017, 36(1): 62-67.  DOI: 10.3969/j.issn.1002-302x.2017.01.11 Abstract ( )   PDF (2301KB) ( )   Halliburton is an international leader in cementing technology and has applied for 111 patents for cementing additives (retarder, fluid loss agent, dispersant and accelerator). This paper makes in-depth analysis of the related patents worldwide and in Halliburton and elaborates distribution of countries and regions applying for patents, time of applications and content of patented technology. It points out the R&D focuses and development trends of Halliburton’s cementing additives. The company has paid more and more attention to development of polymer-based cementing additives, particularly retarder and fluid-loss additive. The relevant patents of retarder are in large quantities, reaching 50 in a wide range and taking a favorable market position worldwide. In addition, the R&D efforts are also focused on the special additives satisfying the harsh downhole conditions (such as high temperature and corrosion). Patent analysis can help learn patent application and protective strategy from foreign companies, allowing the domestic companies to have the mindset for application of the relevant patents, protection of intellectual property rights and development of new technologies.