Dissertation/Thesis Abstract

Growth Prediction of New Fractures in the Shadows of Existing Hydraulic Fractures in Shale Gas Formations
by Li, Jia, M.S., University of Louisiana at Lafayette, 2015, 69; 10002470
Abstract (Summary)

Natural gas and oil exploration and production from shale formations have gained a great momentum in many regions in the past five years. Producing hydrocarbons from shale is challenging because of low productivity of wells. Optimal design of transverse fractures is a key to achieving successful well completion and field economics. The minimum fracture spacing and the fracture propagation trajectory are the determinant for the successful transverse fracture optimization. Various states of anisotropic stress have been applied to the simulated models with assigning criteria for fracture initiation and propagation. One of the factors that need to be addressed is the trajectory of a fracture in the presence of varying stress fields. The injection of treatment fluid in the initial crack exerts pressure from inside and the stress field around the fracture tip controls fracture extension direction. The new analytical model presented in this paper is used to quickly predict hydraulic fracture propagation trajectory based on completion situation. The fracture geometry obtained by this model is a reliable resource for designing the multi-stage hydraulic fracture spacing in shale gas formation and evaluating hydraulic fracturing horizontal well completion. Result of the analytical method has been verified by a Finite Element Method for a typical fracturing condition in a shale gas formation.

Indexing (document details)
Advisor: Guo, Boyun
Commitee: Boukadi, Fathi, Far, Mary, Feng, Yin
School: University of Louisiana at Lafayette
Department: Petroleum Engineering
School Location: United States -- Louisiana
Source: MAI 55/03M(E), Masters Abstracts International
Subjects: Petroleum engineering
Keywords: Hydraulic fracture, Propagation simulation, Shale, Stress re-orientation
Publication Number: 10002470
ISBN: 978-1-339-41978-7
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