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AuthorMahmoud H.
AuthorHamza A.
AuthorNasser M.S.
AuthorHussein I.A.
AuthorAhmed R.
AuthorKarami H.
Available date2022-04-25T10:59:46Z
Publication Date2020
Publication NameJournal of Petroleum Science and Engineering
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.petrol.2019.106748
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85075997801&doi=10.1016%2fj.petrol.2019.106748&partnerID=40&md5=c468a41c6b395034832edcea388cfac4
URIhttp://hdl.handle.net/10576/30412
AbstractHorizontal wells provide high drainage area within the reservoirs. Advancements in horizontal drilling technologies are utilized to develop unconventional resources such as shale gas and coal bed methane. However, wellbore instability and difficulties in hole cleaning are combined with high-temperature high-pressure conditions in such sensitive formations. Inefficient cuttings removal out of the wellbore results in increasing drag and torque, pipe stuck and may induce lost circulation and consequently increases drilling non-productive time (NPT). Various drilling methods and hole cleaning technologies including downhole tools and complex fluid systems have been implemented to transport cuttings out of horizontal and highly deviated wellbore sections. This review explores the factors that lead to cuttings settling and resuspension in horizontal and deviated sections. Furthermore, it discusses various types of drilling sweeps and additives used with water, oil and gas based drilling fluids to improve the cuttings lifting efficiency in horizontal wells. Bio-based additives and nanomaterials used with unconventional reservoirs are also highlighted. Moreover, different methods used in drill cuttings removal are illustrated. Factors affecting the cuttings removal have also been evaluated and general guidelines for selecting additives and sweep fluids are established. Finally, the main laboratory techniques used to analyse cuttings settling behavior and fluid stability are presented.
SponsorThis work was made possible by the support of a National Priorities Research Program (NPRP) grant from the Qatar National Research Fund (QNRF), grant reference number NPRP11S-1228-170140. The statements made herein are solely the responsibility of the authors.
Languageen
PublisherElsevier B.V.
SubjectAdditives
Cleaning
Coal bed methane
Coal deposits
Deflected boreholes
Drilling fluids
Horizontal wells
Infill drilling
Methane
Oil field equipment
Oil well drilling
Oil wells
Petroleum additives
Resource valuation
Transport properties
Clean-out
Complex fluid systems
High temperature high pressure
Laboratory techniques
Lifting efficiencies
Unconventional reservoirs
Unconventional resources
Wellbore instability
Horizontal drilling
cutting (excavation)
drilling fluid
guideline
hydrocarbon reservoir
instability
laboratory method
oil well
resuspension
TitleHole cleaning and drilling fluid sweeps in horizontal and deviated wells: Comprehensive review
TypeArticle Review
Volume Number186
dc.accessType Abstract Only


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