Development and evaluation of fracture gradient curve model: a case study of south-central Kazakhstan

Објеката

Тип
Рад у часопису
Верзија рада
објављена верзија
Језик
енглески
Креатор
Branimir Stanisavljevic, Vesna Karovic Maricic, Irena Isakov
Извор
International Journal of Oil, Gas and Coal Technology
Издавач
Inderscience Publishers
Датум издавања
2022
Сажетак
An accurate fracture gradient value is one of the most important issues in oil and gas well design and drilling. The value of a fracture gradient is a critical parameter for determining the drilling mud weight and selecting the proper depths for setting the casing in the planning process of drilling operations. This paper proposed the new curve model of fracture gradient for the south-central Kazakhstan (central Asia) region based on the analysis of leak-off test and format integrity test results. Data from more than 400 tested wells were analysed and compared with the results of existing methods for predicting the fracture gradient and with the results from previous drilling projects in that region. By using the new curve model, the more precise values of fracture gradient are determined. Besides an improved fracture gradient model development and validation, the model’s analytical expressions are presented. The article’s most important results are determining the model’s values of fracture gradient and providing a more accurate calculation of mudweight, less mud losses, more precise evaluations of cementing operations, better selection of the casing setting depth and improved drilling safety.
том
32
Број
2
почетак странице
126
крај странице
140
doi
10.1504/IJOGCT.2023.128042
issn
1753-3309
Subject
gradijet frakturiranja, model nove krive, projektovanje naftne bušotine, Kazahstan
fracture gradient, new curve model, oil well design, drilling, Kazakhstan
Шира категорија рада
M20
Ужа категорија рада
М23
Права
Затворени приступ
Лиценца
Creative Commons – Attribution-Share Alike 4.0 International
Формат
.pdf

Branimir Stanisavljevic, Vesna Karovic Maricic, Irena Isakov. "Development and evaluation of fracture gradient curve model: a case study of south-central Kazakhstan" in International Journal of Oil, Gas and Coal Technology, Inderscience Publishers (2022). https://doi.org/10.1504/IJOGCT.2023.128042

This item was submitted on 12. јануар 2023. by [anonymous user] using the form “Рад у часопису” on the site “Радови”: http://dr.rgf.bg.ac.rs/s/repo

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