Integrity and risk control of pipelines using multi-step optimal cessation (Mast) procedure

摘要

The paper presents a new approach to integrity and risk control of main oil pipelines. The main goal is to understand how to manage and control system integrity and risk of performance. Existing maintenance management systems are either only qualitative using a subjective pipeline index (Davis, 1988), or use relative-risk numbers for prioritizing pipelien segments for inspetion/maintenance (Kiefner et al, 1990) or are based on previous statisties of each pipeline in consideration (Kulkarni and conroy, 1994, 1998). These systems do not take into account safety level that have to be assured, or else consider them as constraints. In the latter case, their values are not given. In this paper the central maintenance problem is outlined as a control problem and an optimal cessation of pipeline performance procedure is developed.