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AuthorMagzoub M.I.
AuthorShamlooh M.
AuthorSalehi S.
AuthorHussein I.
AuthorNasser M.S.
Available date2022-04-25T10:59:42Z
Publication Date2021
Publication NameJournal of Petroleum Science and Engineering
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.petrol.2021.108383
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85099628012&doi=10.1016%2fj.petrol.2021.108383&partnerID=40&md5=ee8d58ebe99e32977b36e4b68a29079b
URIhttp://hdl.handle.net/10576/30377
AbstractThe problem of lost circulation is a direct consequence of the presence of fractures or high permeability. Lost circulation material (LCM) is used to treat the loss that occurs or proactively strengthen the wellbore of the potential loss zones. The polyacrylamide (PAM)/Polyethylenimine (PEI) cross-linkable polymer gel is proven to work best in zone-sealing and plugging applications. In addition to their thermal stability, the fact that these gels are flexible gives them the advantage of deforming and sealing-off multiple and complex near wellbore fractures. The primary objective of this study is to investigate the gelation kinetics of the PAM/PEI cross-linkable polymer to be used in drilling fluids formulations to enhance wellbore stability and strength. Different combinations of polymers and crosslinkers were evaluated; potential polymers were screened for gelation kinetics and gel strength in typical drilling mud formulations. The gelation time of the polymer-based drilling mud formulation is determined in salt-free and in saline systems. The results on rheological properties and gelation kinetics were used to prepare a gelling mud formulation using PAM/PEI cross-linkable polymer as LCM. The produced gel was thermally stable under high-temperature-high-pressure reservoir conditions, which will result in enhanced wellbore strengthening.
SponsorThis paper was made possible by an NPRP Grant # NPRP10-0125-170240 from the Qatar National Research Fund (a member of Qatar Foundation ). The statements made herein are solely the responsibility of the authors.
Languageen
PublisherElsevier B.V.
SubjectBoreholes
Drilling fluids
Gelation
Infill drilling
Kinetics
Mud logging
Oil field equipment
Thermodynamic stability
High permeability
High temperature high pressure
Lost circulation materials
Plugging applications
Polyacrylamide(PAM)
Primary objective
Rheological property
Wellbore stability
Polymers
drilling
drilling fluid
enhanced oil recovery
gel
hydrocarbon reservoir
P-T conditions
polymer
reaction kinetics
rheology
sealing
TitleGelation kinetics of PAM/PEI based drilling mud for lost circulation applications
TypeArticle
Volume Number200
dc.accessType Abstract Only


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