DOI: 10.1306/03241412125
Scopus记录号: 2-s2.0-84922678361
论文题名: A simple model of gas production from hydrofractured horizontal wells in shales
作者: Patzek T. ; Male F. ; Marder M.
刊名: AAPG Bulletin
ISSN: 0149-1607
EISSN: 1558-9337
出版年: 2014
发表日期: 2014
卷: 98, 期: 12 起始页码: 2507
结束页码: 2529
语种: 英语
Scopus关键词: Boundary value problems
; Gas industry
; Gases
; Initial value problems
; Natural gas fields
; Range finding
; Shale
; Well stimulation
; Cumulative production
; Nonlinear initial-boundary value problems
; Original gas in places
; Physics-based modeling
; Pressure diffusion
; Production rates
; Scaling theories
; Upper and lower bounds
; Horizontal wells
; diffusion
; economic geology
; gas field
; gas production
; mathematical analysis
; numerical model
; one-dimensional modeling
; pressure effect
; shale
; transient flow
; well technology
; United States
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Assessing the production potential of shale gas can be assisted by constructing a simple, physics-based model for the productivity of individual wells. We adopt the simplest plausible physical model: one-dimensional pressure diffusion from a cuboid region with the effective area of hydrofractures as base and the length of horizontal well as height. We formulate a nonlinear initial boundary value problem for transient flow of real gas that may sorb on the rock and solve it numerically. In principle, solutions of this problem depend on several parameters, but in practice within a given gas field, all but two can be fixed at typical values, providing a nearly universal curve for which only the appropriate scales of time in production and cumulative production need to be determined for each well. The scaling curve has the property that production rate declines as one over the square root of time until the well starts to be pressure depleted, and later it declines exponentially. We show that this simple model provides a surprisingly accurate description of gas extraction from 8305 horizontal wells in the United States' oldest shale play, the Barnett Shale. Good agreement exists with the scaling theory for 2133 horizontal wells in which production started to decline exponentially in less than 10 yr. We provide upper and lower bounds on the time in production and original gas in place. Copyright © 2014. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84922678361&doi=10.1306%2f03241412125&partnerID=40&md5=038047fa5e750baa796095f48417b2fa
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13177
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
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Recommended Citation:
Patzek T.,Male F.,Marder M.. A simple model of gas production from hydrofractured horizontal wells in shales[J]. AAPG Bulletin,2014-01-01,98(12)