西南石油大学学报(自然科学版)

Previous Articles     Next Articles

Method for Field Evaluation of Drag Reduction Effect of Natural Gas#br# Drag Reduction Agent

HUANG Zhiqiang1, MA Yachao1, LI Qin1*, WANG Nan1, CHANG Weichun2   

  1. 1. School of Mechatronic Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    2. Pipeline R&D Center,Petrochina,Langfang,Hebei 065000,China
  • Online:2016-08-01 Published:2016-08-01

Abstract:

The appropriate use of natural gas DRA can effectively reduce the energy consumption during long-distance transportation
and improve the capacity of the pipeline. Scientific evaluation of the drag reduction effect is the key to the appropriate
use of natural gas DRA in the field. However,there exist some limitations in the drag reduction effect evaluation methods
currently used in the field production,thus these evaluation methods cannot meet the need of the pipeline transportation. With
consideration of the drag reduction mechanism and the requirements of pipeline transportation,we analyzed and improved
the three evaluation methods used at home and abroad,and proposed two new evaluation methods. After comparing the five
methods according to the fuzzy comprehensive evaluation theory,we identified the combination of gas transmission efficiency
coefficient evaluation and hydraulic friction coefficient evaluation as the most appropriate evaluation method. Based on the
research results,we developed a natural gas pipeline DRA drag reduction evaluation software. The test results of the software
from the application to a gas pipeline not only agreed well with the actual situation,but also met the need of both the technical
officers and the production managers. The software is approved by the field staff as it was simple and easy to use.

Key words: natural gas drag reduction agent, drag reduction effect, field evaluation method, hydraulic friction coefficient,
gas transmission efficiency coefficient

CLC Number: