Predicting bottomhole pressure in vertical multiphase flowing wells using artificial neural networks

被引:48
作者
Jahanandish, I. [3 ]
Salimifard, B. [2 ]
Jalalifar, H. [1 ,2 ]
机构
[1] Shahid Bahonar Univ Kerman, Dept Petr Engn, Kerman, Iran
[2] Shahid Bahonar Univ Kerman, Energy & Environm Engn Res Ctr, Kerman, Iran
[3] Univ Tehran, Tehran 14174, Iran
关键词
artificial neural networks; bottomhole pressure; multiphase flowing wells; CORRESPONDING STATES TECHNIQUES; ENHANCEMENT;
D O I
10.1016/j.petrol.2010.11.019
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Over the years, accurate prediction of pressure drop has been of vital importance in vertical multiphase flowing oil wells in order to design an effective production string and optimum production strategy selection. Various scientists and researchers have proposed correlations and mechanistic models for this purpose since 1950, most of which are widely used in the industry. But in spite of recent improvements in pressure prediction techniques, most of these models fail to provide the desired accuracy of pressure drop, and further improvement is still needed. This study presents an artificial neural network (ANN) model for prediction of the bottomhole flowing pressure and consequently the pressure drop in vertical multiphase flowing wells. The model was developed and tested using field data covering a wide range of variables. A total of 413 field data sets collected from Iran fields were used to develop the ANN model. These data sets were divided into training, validation and testing sets in the ratio of 4:1:1. The results showed that the research model significantly outperforms all existing methods and provides predictions with higher accuracy, approximately 3.5% absolute average percent error and 0.9222 correlation coefficient. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:336 / 342
页数:7
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