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《Natural Gas Industry》 2008-07
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JIANG Yu-qiang1,LI Cheng-yong2,CAO Cheng-hui3,ZHANG Ran4,HUANG Shi-qiang5(1School of Resource and Environment,Southwest Petroleum University;2 Chengdu University of Technology;3 No.3 Oil Recovery Plant,PetroChina Qinghai Oilfield Company,CNPC;4 Gas Transportation Department of PetroChina Southwest Oil & Gasfield Company;5 Central Sichuan Oil and Gasfield of PetroChina Southwest Oil & Gasfield Company).  
Abnormal phenomena of pressure dropping continually in the later shut-in period are existed in some pressure build-up test data of high-productivity gas wells,which cannot be processed by conventional well testing interpretation methods.On the basis of a detailed discussion about various factors causing abnormal pressure reference of gas well testing for high production and low pressure difference,the paper puts its focus on in-depth analysis of "water hammer" phenomena and its impact on pressure build-up test data,puts forward the technical ideas and methods to solve the above-mentioned problems,and processes the pressure data of gas well testing in the Kela-2 reservoir,which had a relatively high credibility for interpretation results.This study is an important reference for processing the abnormal data of specific type gas well testing.
【Fund】: 四川省重点学科建设项目(编号:SZD0414)的资助
【CateGory Index】: TE373
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