A New Fracture-Unit Model and Its Application to a Z-Fold Fracture

Wanjing Luo; Changfu Tang; Yingfang Zhou

doi:10.2118/194024-PA

A New Fracture-Unit Model and Its Application to a Z-Fold Fracture

Wanjing Luo, Changfu Tang, Yingfang Zhou

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

Abstract

Following the Cinco-Ley fracture model (Cinco-Ley et al. 1978) and the Luo-Tang wing model (Luo and Tang 2015a), we developed a new fracture-unit model. By coupling the Fredholm integral equation for a fracture with a reservoir equation, we present a new semianalytical method in the Laplace domain, and an example of a Z-fold fracture is then presented to demonstrate the applicability of the fracture-unit model. The effects of fracture conductivity, fracture geometry, and branch length on the transient wellbore pressure are discussed in detail. Our work provides a novel forward model to implement the law of fluid flow in complex fractures.

Original language	English
Article number	SPE-194024-PA
Number of pages	15
Journal	SPE Journal
Volume	24
Issue number	1
DOIs	https://doi.org/10.2118/194024-PA
Publication status	Published - 1 Feb 2019

Keywords

Cyclodextrin
Polyrotaxane
Pulley effect
Slide-ring gel
COMPLEX
FLUID-FLOW
NON-DARCY-FLOW
WELL
SHALE-GAS-RESERVOIRS
CONDUCTIVITY
DISCRETE
PRODUCTIVITY
PRESSURE-TRANSIENT ANALYSIS
PROPAGATION

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title = "A New Fracture-Unit Model and Its Application to a Z-Fold Fracture",

abstract = "Following the Cinco-Ley fracture model (Cinco-Ley et al. 1978) and the Luo-Tang wing model (Luo and Tang 2015a), we developed a new fracture-unit model. By coupling the Fredholm integral equation for a fracture with a reservoir equation, we present a new semianalytical method in the Laplace domain, and an example of a Z-fold fracture is then presented to demonstrate the applicability of the fracture-unit model. The effects of fracture conductivity, fracture geometry, and branch length on the transient wellbore pressure are discussed in detail. Our work provides a novel forward model to implement the law of fluid flow in complex fractures.",

keywords = "Cyclodextrin, Polyrotaxane, Pulley effect, Slide-ring gel, COMPLEX, FLUID-FLOW, NON-DARCY-FLOW, WELL, SHALE-GAS-RESERVOIRS, CONDUCTIVITY, DISCRETE, PRODUCTIVITY, PRESSURE-TRANSIENT ANALYSIS, PROPAGATION",

author = "Wanjing Luo and Changfu Tang and Yingfang Zhou",

note = "This work was supported by the National Natural Science Foundation of China (Grant No.51674227) and the Fundamental Research Funds for the Central Universities. ",

year = "2019",

month = feb,

day = "1",

doi = "10.2118/194024-PA",

language = "English",

volume = "24",

journal = "SPE Journal",

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publisher = "Society of Petroleum Engineers (SPE)",

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T1 - A New Fracture-Unit Model and Its Application to a Z-Fold Fracture

AU - Luo, Wanjing

AU - Tang, Changfu

AU - Zhou, Yingfang

N1 - This work was supported by the National Natural Science Foundation of China (Grant No.51674227) and the Fundamental Research Funds for the Central Universities.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Following the Cinco-Ley fracture model (Cinco-Ley et al. 1978) and the Luo-Tang wing model (Luo and Tang 2015a), we developed a new fracture-unit model. By coupling the Fredholm integral equation for a fracture with a reservoir equation, we present a new semianalytical method in the Laplace domain, and an example of a Z-fold fracture is then presented to demonstrate the applicability of the fracture-unit model. The effects of fracture conductivity, fracture geometry, and branch length on the transient wellbore pressure are discussed in detail. Our work provides a novel forward model to implement the law of fluid flow in complex fractures.

AB - Following the Cinco-Ley fracture model (Cinco-Ley et al. 1978) and the Luo-Tang wing model (Luo and Tang 2015a), we developed a new fracture-unit model. By coupling the Fredholm integral equation for a fracture with a reservoir equation, we present a new semianalytical method in the Laplace domain, and an example of a Z-fold fracture is then presented to demonstrate the applicability of the fracture-unit model. The effects of fracture conductivity, fracture geometry, and branch length on the transient wellbore pressure are discussed in detail. Our work provides a novel forward model to implement the law of fluid flow in complex fractures.

KW - Cyclodextrin

KW - Polyrotaxane

KW - Pulley effect

KW - Slide-ring gel

KW - COMPLEX

KW - FLUID-FLOW

KW - NON-DARCY-FLOW

KW - WELL

KW - SHALE-GAS-RESERVOIRS

KW - CONDUCTIVITY

KW - DISCRETE

KW - PRODUCTIVITY

KW - PRESSURE-TRANSIENT ANALYSIS

KW - PROPAGATION

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UR - http://www.mendeley.com/research/new-fractureunit-model-application-emzemfold-fracture

U2 - 10.2118/194024-PA

DO - 10.2118/194024-PA

M3 - Article

VL - 24

JO - SPE Journal

JF - SPE Journal

SN - 1930-0220

IS - 1

M1 - SPE-194024-PA

ER -

A New Fracture-Unit Model and Its Application to a Z-Fold Fracture

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Keywords

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