The early recovery of flow pattern and parameter interpretation in well test

Xiao H. Hu; Shi Y. Zheng

doi:10.3863/j.issn.1674-5086.2010.04.016

The early recovery of flow pattern and parameter interpretation in well test

Xiao H. Hu, Shi Y. Zheng

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

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.

Original language	English
Pages (from-to)	87-91
Number of pages	5
Journal	Xinan Shiyou Xueyuan Xuebao / Journal of Southwest Petroleum University
Volume	32
Issue number	4
DOIs	https://doi.org/10.3863/j.issn.1674-5086.2010.04.016
Publication status	Published - Aug 2010

Keywords

Deconvolution
Flow recovery
Parameter interpretation
Well test
Wellbore storage effect

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10.3863/j.issn.1674-5086.2010.04.016

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title = "The early recovery of flow pattern and parameter interpretation in well test",

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.",

keywords = "Deconvolution, Flow recovery, Parameter interpretation, Well test, Wellbore storage effect",

author = "Hu, {Xiao H.} and Zheng, {Shi Y.}",

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AU - Hu, Xiao H.

AU - Zheng, Shi Y.

PY - 2010/8

Y1 - 2010/8

N2 - 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.

AB - 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.

KW - Deconvolution

KW - Flow recovery

KW - Parameter interpretation

KW - Well test

KW - Wellbore storage effect

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DO - 10.3863/j.issn.1674-5086.2010.04.016

M3 - Article

SN - 1000-2634

VL - 32

SP - 87

EP - 91

JO - Xinan Shiyou Xueyuan Xuebao / Journal of Southwest Petroleum University

JF - Xinan Shiyou Xueyuan Xuebao / Journal of Southwest Petroleum University

IS - 4

ER -

The early recovery of flow pattern and parameter interpretation in well test

Abstract

Keywords

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