.... The apparent viscosity is given by: Abstract Drilling efficiency is the ratio of unconfined compressive strength (UCS) to mechanical specific energy (MSE); this parameter is important for understanding the drilling process and essential for attempts at drilling automation. MSE is a measure of the energy...

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.... Additives are as variable as possible, however, in general, the mechanism behind their use is associated with changing chemical characteristics to allow the change of physical properties, such as accelerators, aiming to reduce thickening time and increase the initial compressive strength of the cement...

..., and uniaxial compressive strength. The use of sucrose, Zn species, K species, and Al2O3 was inspired from results presented in previous studies. The slurries were tested under a bottomhole circulating temperature 50° and a static temperature and pressure of 70° and 14 MPa respectively. The results indicate...

... & gas renewable energy international journal core holder reservoir teodoriu compressive strength hydrogen underground hydrogen storage cement slurry cement sample experimental investigation offshore technology conference Introduction Climate change is driving a move away from...

... and cementing resin-blended cement system offshore technology conference compressive strength contamination cement slurry technology conference resin batch mixer operation slurry tank Challenges Southern Iraqi oil fields behold many drilling issues. Casing corrosion attributed to high...

... cement slurry. Rheology, fluid loss and compressive strength properties of all cement slurries were measured.Rheological properties were measured at 50°C temperature and atmospheric pressure. The fluid loss test was conducted at 50°C and 1000 psi pressure. The uniaxial compressive strength (UCS) test...

.... Vipulanandan p-q curing model was used to predict the changes in resistivity with curing time. Addition of 1% and 3% SBR polymer also increased the compressive strength of the smart cement by 18% and 32% after 1 day of curing respectively, The piezoresistivity of smart cement with the addition of SBR polymer...

... restrictions without reaching the fracture limit of formation at the IW1 casing shoe. Ultrafine cement, pure resin and combinations of both were selected for their ability to pass through restrictions and resist to contamination by fluids present in the well, while also developing compressive strength...

... Abstract When Portland cement sheath is submitted to temperatures above 110 °C in oil well wellbore conditions, the compressive strength retrogression phenomenon is observed. This occurs due to the conversion of calcium silicate hydrate (C-S-H) to unstable phases, resulting in low compressive...

... and experimental validation. Hence, four systems were tested for plug cementing operation with composition variations under pre-defined ageing conditions. Class G Portland cement slurry was used as reference to allow comparison of mechanical properties (compressive strength and tensile strength) between flexible...

... Friction and Mechanical Efficiency as a Function of Confined Compressive Strength Impacts Drilling Performance ," paper AADE-05-NTCE-60 presented at the AADE National Technical Conference and Exhibition , Houston, Texas , 5-7 April 2005 . Curry , D.A. , Lourenco , A.M. , Ledgerwood...

... Abstract Nano aluminum oxide (NanoAl 2 O 3 ) up to 1% was added to the smart cement with a water-to-cement ratio of 0.38 to investigate the effects on the sensing properties and compressive strength. Series of physical, curing and compressive loading experiments evaluated the smart cement...

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... dating back to 1935. Generally, the classic behavior of cement strength retrogression, as measured by crush tests under axial load, involves higher compressive strengths during the first few days of curing, and lower compressive strengths upon further curing. The relevance of Portland cement/silica...

..., compressive strength, Brinell hardness, and chemical composition (X-ray diffraction [XRD], inductively coupled plasma [ICP] tests, pH indicator testing, and thermogravimetric analysis [TGA All of the samples were tested for a total of one year. It was observed that chemistry played a very important role...

... including recently acquired field-generated foamed cement samples ( Kutchko et al., 2014 ). society of petroleum engineers cement cement system permeability foamed cement foam quality cement cement formulation compressive strength permeability value casing and cementing cement sample cement...

... was monitored from the initial time of mixing to 28 days of curing under water. Adding 1 percent NCC to the smart cement reduced the initial resistivity from 1.07 .m to 0.85 .m, a 21% reduction but increased the compressive strength by over 50%. Also addition of nano CaCO3 increased the rheological properties...