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Table 3
Example of quality grading process maturity levels.
| Grade | Maturity characteristics |
|---|---|
| Level A | The evaluation technology of pipe selection is not perfect, and there are great defects in the design of pipe composition; Poor control of manufacturing process and lax supervision of key indicators; Lack of inspection and monitoring means; No design, manufacturing and service monitoring specifications have been formed; Inadequate understanding of service conditions and pipe applicability for non-API products; No API series product quality control standards; Non-API oil well pipe series products with various requirements are not managed, and most of them are not systematically evaluated. |
| Level B | with mature pipe composition design and manufacturing process; Single means of inspection and testing, and no recognized benchmarks; No design, manufacturing and service monitoring specifications developed; For the staff of the non-API product service conditions and pipe applicability awareness training, employees have a certain understanding of the relevant requirements; A small number of non-API tubing products were systematically evaluated, there are still a majority of cases not evaluated; No product development evaluation and site acceptance evaluation; A small number of unexpected uses of non-API products; No requirements for non-API series product quality control standards. |
| Level C | Formed design, manufacturing and service monitoring norms, but the relevant norms scattered, can not form a unified user, research institutes and factories; Single means of inspection and testing, but with recognized benchmarks; The practitioners have a good understanding of the applicability of non-API series working conditions and pipes; training process with proven knowledge of service conditions and tubing suitability for non-API products; Forming non-API series product specifications, and in line with relevant regulations and requirements; Product development appraisal and on-site acceptance basis; No or little unexpected use of non-API products is detected; Requirements for formulating relevant non-API series product quality control standards. |
| Level D | Forming a normative unity between users, research institutes and factories; Form a multi-mode inspection and testing means with recognized benchmarks; A training system with a mature understanding of the service conditions and pipe applicability of non-API series products; Non-API tubing products are standardized and comply with relevant regulations and requirements; Product development appraisal and on-site acceptance basis; No or little unexpected use of non-API products is detected; All non-API standards and their changes have been included and recognized by the industry, but there is no uniform standard; Research and rectification of the use of oil fields, the measures taken are effective. |
| Level E | All industry certification, series standards and evaluations have been standardized and can be easily used, and a unified standard has been formed; In-depth understanding of the issues returned and the ability to refer back to them; Some degree of qualitative analysis of the overall maturity process implementation; Conducted qualitative and quantitative analysis of non-API well tubing quality conditions, proactively identifying problems and taking effective corrective action and preventive measures; The management of this quality grading work is standardized and efficient and can be constantly updated and recognized by the industry. |
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