Drilling fluids based on calcium nitrate with additives of asphaltenes and chloroform extracted bitumen (ChEB) inhibitor
UDC: 622.24.063.2
DOI: -
Authors:
PRIVEDENNY MAXIM V.
1,
BEKETOV SERGEY B.1,
YAREMKO ARTEM V.2,
MOISA YURI N.3,
ANTONIADI DMITRY G.4
1 North Caucasus Federal University, Stavropol, Russia
2 Asia Petro Service, Aktau, Kazakhstan
3 NPO "Khimburneft", Krasnodar, Russia
4 Kuban State Technological University, Krasnodar, Russia
Keywords: swelling and dispersion of clays, asphaltenes, organic clay inhibitor, barite-free biopolymer inhibitory water-based drilling fluids (WBDF), contact angle, interfacial surface tension, structural-rheological, filtration, inhibitory and lubricating properties of water-based drilling fluids (WBDF)
Annotation:
The physicochemical and technological properties of biopolymer drilling fluids based on calcium nitrate, asphaltenes and ChEB organic inhibitor for drilling in unstable rock deposits and opening productive formations were studied. Calcium nitrate (nitrogen fertilizer) was used as a weighting agent and inhibitor in combination with acid-soluble calcium carbonate, asphaltenes of various brands, FK Plus lubricant additive and the ChEB organic inhibitor organic inhibitor of clay minerals. Barite-free biopolymer inhibitory drilling fluids have increased density, good structural and rheological parameters typical of biopolymer drilling fluids, low filtration indicators and improved lubricating and surface-active properties.
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