THE EARLY RECOVERY OF FLOW PATTERN AND PARAMETER INTERPRETATION IN WELL TEST

doi:10.3863/j.issn.1674-5086.2010.04.016

西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (4): 87-91.DOI: 10.3863/j.issn.1674-5086.2010.04.016

• 石油与天然气工程 • Previous Articles Next Articles

THE EARLY RECOVERY OF FLOW PATTERN AND PARAMETER INTERPRETATION IN WELL TEST

HU Xiao-hu¹ZHENG Shi-yi¹^，2

（1.College of Petroleum Engineering,China Petroleum University，Changping Beijing 102249,China；2.Heriot Watt University，Edinburgh EH14 4AS，Scotland）

Received:1900-01-01 Revised:1900-01-01 Online:2010-08-20 Published:2010-08-20

Abstract

Abstract: The impact of noise data on the pressure derivative is characterized by rapid dampening with time,and the after flow rate for the closure of constant surface rate with constant wellbore storage coefficient is recovered by segmented exponential function in inverted order according to the wellbore material balance equation.Based on this recovered after flow rate,the early time radial flow is uncovered by D.Ilk′s pressure rate deconvolution algorithm by removing specified percent of wellbore storage effect,and parameters of reservoir and wellbore are interpreted according to this recovered radial flow.This method is very stable and accurate according to the data test of pressure which contains 30 kPa random noise.

Key words: well test, deconvolution, wellbore storage effect, flow recovery, parameter interpretation

CLC Number:

TE331

HU Xiao-hu ZHENG Shi-yi;. THE EARLY RECOVERY OF FLOW PATTERN AND PARAMETER INTERPRETATION IN WELL TEST[J]. 西南石油大学学报(自然科学版), 2010, 32(4): 87-91.

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http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2010/V32/I4/87

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THE EARLY RECOVERY OF FLOW PATTERN AND PARAMETER INTERPRETATION IN WELL TEST

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