... and evaluated using API standard tests and industry-wide recognized tests to ensure they met functional requirements for well cementing such as: mixability, thickening time, rheology, compressive strength development, fluid loss and free water.The concept is as follows:when cement is pumped into an annulus...

...-Portland cement system that totally replaces Portland cement using volcanic tephra (VT) activated by an alkaline solution. The study started by collecting, crushing, and sieving VT until getting fine VT powder. Rheological properties, unconfined compressive strength (UCS), Poisson's ratio (PR), and Young's...

... conditions. They have been able to be implemented in situations of loss of circulation control even with the use of directional tools. Another advantage is their setting and pumpable time adjusted according to specific situations, developing the desired thixotropy and reaching compressibility strength...

... Ratio) of different bedding plane orientations (0/ 45 / 90 degrees) were studied. Both compressive strength and tensile strength were investigated in different directions. A simple Plane of Weakness and Modified Cam Clay failure criteria were applied to describe the shear failure mechanism. Well...

... Table 1 UCA test results showing time to develop compressive strength with and without the "Heat Sweep" effect at various depths (time values are given as hours : minutes) Heat Sweep No Yes Compressive Strength 100 psi 500 psi 100 psi 500 psi Time for Top Lead (1558 m...

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... Geomechanical studies on shale have focused on the behaviour characterization of its mechanical properties especially Young’s modulus, Poisson’s ratio and unconfined compressive strength (UCS) under varying conditions of bedding plane orientations ( Jin et al., 2018 ), confining stresses ( Abbas...

... rock mechanical property elastic moduli dataset mechanical property microfracture intensity society of petroleum engineers shale compressive strength intensity lithofacies brittleness acquisition artificial neural network anisotropy Introduction To effectively develop...

... was reported as the thickening time. UCA Compressive Strength. The cement's compressive strength was determined using an ultrasonic cement analyzer (UCA) which is a non-destructive test. The cement was placed in a high-pressure cell that was ramped to desired test temperature and pressure. Transducers...

... measuring the compressive strength, thickening time and gas transition time of these materials. In this study, nanosynthetic graphite with designed expansive properties has been introduced to fresh cement slurry. The expansive properties of nanosynthetic graphite were achieved by controlling...

... lightweight cement cement slurry lightweight density cement tensile strength neat cement fly ash blend cement lwa 1 ppg density cement property drilling fluids and materials Upstream Oil & Gas new micromaterial compressive strength slurry permeability Introduction Cementing...

... and cementing strength MPBP cement slurry cement property Upstream Oil & Gas viscosity compressive strength slurry society of petroleum engineers tensile strength cement chemistry cement additive fly ash ppg fluid loss control agent Slurry Design operation Introduction Table 1...

... on the simultaneous response of all critical wellbore cement properties from the very early stages of hydration to long-term set. cement property cement chemistry water content reduction well logging strength compressive strength cement formulation casing and cementing porosity log analysis Upstream...

... it can take the drilling and dynamic loads of medium depth applications with low to medium compressive strength. However the technical limits possible using slim body construction needs to be established. Recent developments in applications drilling deep sections in medium to hard formations...

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..., debonding and fluid migration to upper formations. casing and cementing cement property transition temperature compressive strength shrinkage Upstream Oil & Gas smp particle cement slurry cement sheath cement chemistry particle shape memory polymer SMP society of petroleum engineers...

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... at 85oC for 1 day produced strength between 35 to 40MPa. With the addition of sodium silicate to NaOH, the strength was almost 90Mpa. It was concluded that higher molarity of NaOH used as an alkaline activator appeared to provide higher compressive strength together with a considerable effect on the early...

... is the tensile strength in psi and σ c is the compressive strength in kpsi; and Brittleness indices that can be calculated using downhole measurements are popular in the oil and gas industry because of the relative low cost and greater continuity of data throughout the depth of the well as compared...

... angle drilling fluid property stability upstream oil & gas ultrasonic strengthening technique borehole wall shale sample ultrasound fracture compressive strength spe error transmitter permeability Introduction Borehole strengthening while drilling is essentially a technique...