发明名称 |
RAPID DATA-BASED DATA ADEQUACY PROCEDURE FOR PIPEPLINE INTEGRITY ASSESSMENT |
摘要 |
<p>A method and system for evaluating the sample coverage of ultrasonic or radiography (UT/RT) measurements of pipeline wall thickness for statistical validity. A data library contains distributions of in-line inspection (ILI) measurements for other pipelines, calibrated to correspond to UT/RT measurements as needed. The data library for these ILI-measured pipelines also includes statistics generated from Monte Carlo simulation, by way of which various sample coverage levels sample the ILI measurements, for determining whether a measurement exceeds a given threshold or meets another premise related to determining the extreme wall loss measurement for the pipeline. A pipeline with sampled UT/RT measurements is used to identify one or more ILI-measured pipeline datasets that are most similar, and the statistics from those most similar pipeline datasets determine whether the sample coverage of the UT/RT measurements is sufficient to draw conclusions about the extreme value of wall loss in the sampled pipeline.</p> |
申请公布号 |
EP2304602(A2) |
申请公布日期 |
2011.04.06 |
申请号 |
EP20090774110 |
申请日期 |
2009.06.24 |
申请人 |
BP CORPORATION NORTH AMERICA INC.;BP EXPLORATION OPERATING COMPANY LIMITED |
发明人 |
ZIEGEL, ERIC;BAILEY, RICHARD, S.;SPRAGUE, KIP, P. |
分类号 |
G06F17/18 |
主分类号 |
G06F17/18 |
代理机构 |
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