Dissertation/Thesis Abstract

Fracture Conductivity and Its Effects on Production Estimation in Shale
by Cozby, Raymond, M.S., University of Louisiana at Lafayette, 2016, 83; 10243460
Abstract (Summary)

The shale boom has introduced new technology into the oil and gas industry. It has created a new source of energy and has helped create a surplus in volume. With the recent decrease in oil prices, engineers must be creative and again use technology to make wells more productive. This study is done to observe the role of fracture conductivity in a hydraulically fractured well using a commercially available software. This will allow for engineers to improve fracking techniques. From this, it helps to consider the reliability of simulation software.

A typical well in the Eagle Ford Shale formation was selected to model. Completion data was gathered for a horizontal well that had seventeen fracture stages. In the simulation models, the fracture fluid volume was held constant to honor the original well production data. The fracture conductivity was studied using two different methods. The first involved observing one single fracture using different combinations of fracture conductivity throughout the fracture length. The second method incorporated the entire well and observed interactions between fractures with different altered fracture conductivities. Only one fracture was used per stage based off an existing fracture model. Production data with respect to time was analyzed and compared to real time field data.

After production results were analyzed, it can be seen that the models give a reliable representation of a horizontal well in the Eagle Ford Shale. When viewing the results of the single fracture stage, the cumulative productions are very similar, and when comparing the entire well with seventeen stages, the cumulative production begins to change slightly from model to model. Still, the difference in models does not merit an endorsement of a new completion technique for fracture conductivity. The results indicate that infinite acting flow takes over because of the low permeability reservoir.

Indexing (document details)
Advisor: Boukadi, Fathi
Commitee: Mokhtari, Mehdi, Seibi, Adbennour
School: University of Louisiana at Lafayette
Department: Petroleum Engineering
School Location: United States -- Louisiana
Source: MAI 56/05M(E), Masters Abstracts International
Subjects: Engineering, Petroleum engineering
Keywords: Eagle Ford Shale, Fracture conductivity, Horizontal wells, Hydraulic fracturing
Publication Number: 10243460
ISBN: 978-0-355-11286-3
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