Xinjiang Petroleum Geology ›› 2004, Vol. 25 ›› Issue (3): 297-300.

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Productivity Analysis of Commingled Production in Circle-Sealing Reservoir with Infinite Conductive Vertical Fractures

LIU Peng-cheng1, WANG Xiao-dong1, HOU Xiao-chun1, LI Fan-hua2, DENG Hong-wen1   

  1. 1. China University of Geosciences, Beijing 100083, China;
    2. Research Institute of Petroleum Exploration and Development, PetroChina,Beijing 100083, China
  • Received:2003-08-12 Published:2020-09-18

Abstract: Hydraulic fracturing is a technology well applied to development of low permeability or damaged formation. This paper presentsthe commingled produetion of circle-sealing, n-zone and heterogeneous reservoir with infinite conductive vertical fractures, in which in-cludes conditions such as no interfacial crosflow, equal or unequal drainage radius and initial pressures for different zones, as well asmethods and formulae for calculating the wellbore pressure and individual bedding flow rate at constant production rate and certain pres-sure in vertical fracture wells for an oilfield development.Taking two-zone fractured reservoir as an example,and adopting Stehfest numeri-cal inversion method, the changes of bedding flow rate under the conditions of the constant pressure and production in an oil well with in-finite conductive vertical fractures are estimated, and the well productivity and its affected factors are analyzed and discussed.Thismethod can be as a guide for the alloation of production and injection rates, performance prediction and development adjustment for thistype of reservoirs.

Key words: sealed peservoir: vertical facture, commingled ppoduetion: productivitv: mathematical model

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