DELIVERABILITY ANALYSIS OF VERTICAL FRACTURE WELLS IN LOW PERMEABILITY DUAL POROSITY RESERVOIR

doi:10.3863/j.issn.1674-5086.2009.02.018

西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (2): 71-73.DOI: 10.3863/j.issn.1674-5086.2009.02.018

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

DELIVERABILITY ANALYSIS OF VERTICAL FRACTURE WELLS IN LOW PERMEABILITY DUAL POROSITY RESERVOIR

ZHAO Hai-yang^1,2a JIA Yong-lu^2b CAI Ming-jin²^a LI Dong-mei¹ WU Yu-jun³

1.Engineering Institute of Northwest Branch Company，SINOPEC，Urumqi Xinjiang 830000，China；2.Southwest Petroleum University：a.Graduate School，b.School of Petroleum Engineering，Chengdu Sichuan 610500，China；3.Chongqing Drilling Branch Company of Southwest Co.Ltd.，SINOPEC，Chongqing 400021，China

Received:1900-01-01 Revised:1900-01-01 Online:2009-04-20 Published:2009-04-20

Abstract

Abstract: According to finite conductivity vertical fractures derived from hydraulic fractured in low permeability dual porosity reservoir，based on the Warant-Root model in dual Porosity，elliptical flow model of finite conductivity fracture in low permeability dual porosity reservoir is built by using mass conservation equation and elliptical flow method.Furthermore，based on the model，through Laplace Transform，the formula of dimensionless rate in Laplace Space to finite conductivity vertical fracture model in dual porosity reservoir can be obtained.By using Stefest Numerical Inversion of Laplace Transform，the type curves of dimensionless rate change as time can be drawn and the dynamic and influence factors can be discussed.It is shown that the effect of threshold pressure gradient on dimensionless rate will increase as time goes.

Key words: low permeability, dual Porosity, vertical fracture, finite conductivity, elliptical flow, deliverability analysis, fracture

CLC Number:

TE348

ZHAO Hai-yang;a JIA Yong-lub CAI Ming-jina LI Dong-mei WU Yu-jun. DELIVERABILITY ANALYSIS OF VERTICAL FRACTURE WELLS IN LOW PERMEABILITY DUAL POROSITY RESERVOIR[J]. 西南石油大学学报(自然科学版), 2009, 31(2): 71-73.

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DELIVERABILITY ANALYSIS OF VERTICAL FRACTURE WELLS IN LOW PERMEABILITY DUAL POROSITY RESERVOIR

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