| Underground gas storage well is vertical tubular pressure equipment, to store thecompressed gas for the purpose of the present, the total number of China’s gas storage wellhas reached the million or more, with the implementation of the national west east gastransmission policy and energy-saving emission reduction policies, is expected within thenext10years, the number will grow exponentially.This paper first introduces the purpose and meaning of selected topic background andthe selected topic. Gas storage well is a kind of both the pressure vessel, pressure equipmentcharacteristics of pressure pipe and oil and gas wells, it has some characteristics of pressurevessel, pressure pipe and oil and gas, but also have their own unique. Gas storage well in noforeign examples, is our country unique products, since the mid90’s birth in2008to morethan10years, has not been incorporated into the system of special equipment safetysupervision and management, research on the security technology and standards have notsynchronized, so far the gas storage well safety technical specification has not yetpromulgated, resulting in gas well construction supervision plan and lack the necessarytechnical support. The gas storage well construction supervision personnel due to theabsence of supervision scheme accurate and reasonable operation, supervision work qualityis difficult to be guaranteed, the new construction of gas storage well product quality can notmeet the design requirements, planted hidden dangers for the use of gas storage well, fromthe examples of periodic inspection of gas storage well in use have been detected a largenumber of defects and has happened many accidents, also showed that the potential safetyhazard exists and has caused serious consequences, it can be said that the current securitysituation of gas storage well is very serious.Then, this paper analyzes the factors influencing the load characteristics, gas storagewell failure mode and gas storage well designed service life shortened.Then, this paper expounds the theoretical basis of the research, including the theory ofquality management theory and the project life cycle. In this paper, the gas storage wellconstruction cycle is analyzed, and on this basis, the main factors affecting the quality ofconstruction project of gas storage well done analysis;Then, this paper made analysis and design of the city gas storage well built the generalscheme of supervision, including the analysis of the main responsibility and constructionproject supervision General requirements, construction supervision of gas storage wellconstruction supervision, construction supervision on the basis of the research scope, the citygas storage well construction supervision plan content, determine the gas storage wellconstruction project supervision, by expert investigation, AHP and nine standard degree method for gas storage well construction project supervision degree sorting analysis, do theproject supervision (supervision points) classification;Finally, this paper studies the gas well construction project supervision supervisionmeasures and construction unit quality assurance supervision measures of system runningstatus, developed the supervision project schedule that gas storage well construction projectsupervision form.The gas well construction supervision scheme is the supervision mechanism operatesdocuments necessary for gas storage well supervision work, includes the program outlined,applicable scope, supervision units, supervision of personnel, supervision content andprogram schedule etc..At present, the AQSIQ is organizing safety technical specifications prepared gas storagewell, gas storage well related standards are developed. The conclusions and results, solvedsome problems of technical features of gas storage well supervision institutions do not havea clear understanding, to provide technical support to build the supervision plan formulationof gas storage well, to improve the gas storage well supervision plan, improve productquality, reduce the gas storage well construction unqualified rework rate, defect detectionrate and gas storage well the use of well safety accident rate of gas storage well, guaranteethe service life, improve the security situation in gas well is serious, has the certain practicalsignificance. |
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