Comparative evaluation of clays from Abakaliki Formation with commercial bentonite clays for use as drilling mud
نویسندگان
چکیده
منابع مشابه
Report Number 10/44 Mud peeling and horizontal crack formation in drying clays by
Mud peeling is a common phenomenon whereby horizontal cracks propagate parallel to the surface of a drying clay. Differential stresses then cause the layer of clay above the crack to curl up to form a mud peel. By treating the clay as a poroelastic solid, we analyse the peeling phenomenon and show that it is caused by the gradient in tensile stress at the surface of the clay, analogously to the...
متن کاملOn Clays
Base-exchange determinations were made on selected clays of the montmorill0niteillite group to test this method as an analytical tool for the analysis of mixed-layer aggregates. The relatively rapid manganese method developed by Bower and Truog was used and its precision determined oll monodisperse, monomineralic fractions and monodisperse fractions of prepared mixtures of illite and montmorill...
متن کاملESR of clays
Electron spin resonance (ESR) spectroscopy has contributed significantly to the identification and characterization pf paramagnetic impurities associated with clays, Following a brief discussion of the general principles of the technique, a review is given of the application of ESR to the study of those paramagnetic species (chiefly iron and radiation-induced lattice defects) located either wit...
متن کاملChemical Characterization of Tablets, Sealing Clays, and Source Clays from Tell Leilan, Syria
When attempting to deal with questions involving the emergence and evolution of ancient complex societies, one of the major problems faced by researchers is how to monitor abstract processes from the material remains recovered in excavation. Clay sealings and tablets, which provide multiple independent lines of information: iconographic and/or epigraphic; functional (type of sealing i.e. door l...
متن کاملComparative Sorption of Methylene Blue onto Hydrophobic Clays
Chemical modifications of clay to remove methylene blue (MB) from aqueous solutions at room temperature were compared. Natural bentonite (NC) was modified by cation exchange with hexadecyltrimethylammonium chloride (HC), bencyltriethylammonium chloride (BC), and tetramethylammonium chloride (TC) to reverse the surface polarity of the hydrophilic bentonite. The adsorption of MB was studied and f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: African Journal of Environmental Science and Technology
سال: 2015
ISSN: 1996-0786
DOI: 10.5897/ajest2015.1904