Prediction and Early Detection of Karsts—An Overview of Methods and Technologies for Safer Drilling in Carbonates

The nature of carbonate deposition as well as diagenetic processes can cause the development of unique geological features such as cavities, vugs and fractures. These are called karsts. Encountering karsts while drilling can lead to serious consequences such as severe mud losses, drops of bottom hol...

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Κύριοι συγγραφείς: Danil Maksimov, Alexey Pavlov, Sigbjørn Sangesland
Μορφή: Άρθρο
Γλώσσα:English
Έκδοση: MDPI AG 2021-10-01
Σειρά:Energies
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Διαθέσιμο Online:https://www.mdpi.com/1996-1073/14/20/6517
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author Danil Maksimov
Alexey Pavlov
Sigbjørn Sangesland
author_facet Danil Maksimov
Alexey Pavlov
Sigbjørn Sangesland
author_sort Danil Maksimov
collection DOAJ
description The nature of carbonate deposition as well as diagenetic processes can cause the development of unique geological features such as cavities, vugs and fractures. These are called karsts. Encountering karsts while drilling can lead to serious consequences such as severe mud losses, drops of bottom hole assembly and gas kicks. To improve drilling safety in intervals of karstification, it is important to detect karsts as early as possible, preferably in advance. In this paper, we review methods and technologies that can be used for the prediction and early detection of karsts. In particular, we consider acoustic, resistivity, seismic and drilling-data methods. In addition to the inventions and technologies developed and published over the past 40 years, this paper identifies the advantages, limitations and gaps of these existing technologies and discusses the most promising methods for karst detection and prediction.
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spelling doaj.art-c540dc6200fd43d38a4bd901b1e3e8fc2023-11-22T18:04:23ZengMDPI AGEnergies1996-10732021-10-011420651710.3390/en14206517Prediction and Early Detection of Karsts—An Overview of Methods and Technologies for Safer Drilling in CarbonatesDanil Maksimov0Alexey Pavlov1Sigbjørn Sangesland2Department of Geoscience and Petroleum, NTNU Norwegian University of Science and Technology, S.P. Andersens vei 15a, NO-7491 Trondheim, NorwayDepartment of Geoscience and Petroleum, NTNU Norwegian University of Science and Technology, S.P. Andersens vei 15a, NO-7491 Trondheim, NorwayDepartment of Geoscience and Petroleum, NTNU Norwegian University of Science and Technology, S.P. Andersens vei 15a, NO-7491 Trondheim, NorwayThe nature of carbonate deposition as well as diagenetic processes can cause the development of unique geological features such as cavities, vugs and fractures. These are called karsts. Encountering karsts while drilling can lead to serious consequences such as severe mud losses, drops of bottom hole assembly and gas kicks. To improve drilling safety in intervals of karstification, it is important to detect karsts as early as possible, preferably in advance. In this paper, we review methods and technologies that can be used for the prediction and early detection of karsts. In particular, we consider acoustic, resistivity, seismic and drilling-data methods. In addition to the inventions and technologies developed and published over the past 40 years, this paper identifies the advantages, limitations and gaps of these existing technologies and discusses the most promising methods for karst detection and prediction.https://www.mdpi.com/1996-1073/14/20/6517carbonatekarstgeophysicslooking ahead of the bithazards mappingkarst prediction
spellingShingle Danil Maksimov
Alexey Pavlov
Sigbjørn Sangesland
Prediction and Early Detection of Karsts—An Overview of Methods and Technologies for Safer Drilling in Carbonates
Energies
carbonate
karst
geophysics
looking ahead of the bit
hazards mapping
karst prediction
title Prediction and Early Detection of Karsts—An Overview of Methods and Technologies for Safer Drilling in Carbonates
title_full Prediction and Early Detection of Karsts—An Overview of Methods and Technologies for Safer Drilling in Carbonates
title_fullStr Prediction and Early Detection of Karsts—An Overview of Methods and Technologies for Safer Drilling in Carbonates
title_full_unstemmed Prediction and Early Detection of Karsts—An Overview of Methods and Technologies for Safer Drilling in Carbonates
title_short Prediction and Early Detection of Karsts—An Overview of Methods and Technologies for Safer Drilling in Carbonates
title_sort prediction and early detection of karsts an overview of methods and technologies for safer drilling in carbonates
topic carbonate
karst
geophysics
looking ahead of the bit
hazards mapping
karst prediction
url https://www.mdpi.com/1996-1073/14/20/6517
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