Publications

More and more multiphase meter (MPFM) is used due to its compactness in size. However any MPFM user always has same question, on how to validate its measurement. The ideal way is to put the MPFM in tandem with a test-separator, this operation is very expensive and will not be in a continuous basis. Usually there is a slug catcher/production separator which received output from wells or platforms. One method to validate MPFMs is by comparing cumulative measurement made by MPFMs in wells and platforms compare with output from production separator. Basic of this method is mass balance between outgoing flows from wells and incoming flow at processing facilities. Not only this technique requires all MPFMs, but if latter on a mass balance mismatch is found it will be difficult to trace error contribution of each MPFM to the mismatch. The word “Individual” as in the title of this paper is used to emphasize that the proposed method do validation directly on a single MPFM (not a group of MPFMs) on site at anytime required. With this method error contribution of each MPFMs to the mismatch can be measured easily to correct MPFMs measurement. Therefore well test data has better quality to be used by Reservoir Engineers for reservoir modeling, development, well performance improvement, etc. The proposed method started with basic idea to validate measurement from a single MPFM using commonly available nearby meters, the innovation is to add water-cut meter to complete validation in gas, oil, and water phase. From budgetary perspective, the only difference from normal installation and what required by the proposed method is only a water-cut meter. Usage of a water-cut meter to complete MPFM validation in 3 phase is not yet been published by anyone else. Arrangement of this paper is as following: start with result of MPFM validation using clean up separator, high cost but may experience over reading due to liquid circulation. Continue with description of the Innovation, consists of: conceptual, site works, measurement results, and data analysis. Conclusions consist of summary of performance and possible implementation to other affiliate. Attachments: 1) Record of well test data, 2) Installation of water-cut meter, 3) HYSYS simulation.