... In practical field applications, it has been observed that energy losses occur when the bit founders (loses effectiveness due to a poor response to the weight on the bit). These are typically substantial enough to be differentiated from variations associated with changes in rock compressive strength...

... well logging reservoir characterization rock mechanical property strength compressive strength shale niger delta basin information rock elastic moduli elastic moduli fluid substitution pore pressure bulk modulus mudweight gassmann elastic property Introduction The Niger Delta...

..., while the surface areas of Class G cements ranged from 270-380 m 2 /kg. Class C cements have a higher surface area than either Class G or H, which in turn causes it to generate higher compressive strengths earlier. He also noted that the key factor determining the class of an oilwell 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...

.... 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...

... cement property comparative study application calcined clay oil well casing and cementing slurry rahman cement mix plastic viscosity compressive strength compressive strength test uniaxial compressive strength nanoclay cement formulation nanoclay mixed cement slurry offshore...

... ultrafine cement operational safety simulation contingency packer offshore technology conference reservoir cement slurry pure resin real time system interception compressive strength epoxy resin upstream oil & gas restriction casing and cementing interception point hydraulic...

... 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...

.... 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...

... Ali , N. , and Shadi , R. , ( 2011 ). Improvement compressive strength of concrete in different curing media by Al2O3 nanoparticles , Materials Science and Engineering: A , Vol. 528 , pp. 1183 – 1191 . Amanullah , M. and Al-Tahini , A. M. ( 2009 ). Nano-technology...

... and Exhibition , The Hague, Netherlands , 14-16 March 2017 . Caicedo , H.U. and Calhoun , W.M. : " Unique ROP Predictor Using Bit-specific Coefficient of Sliding Friction and Mechanical Efficiency as a Function of Confined Compressive Strength Impacts Drilling Performance ," paper AADE-05-NTCE...

..., to prevent contact between the slurry and the SBM fluid. SBM fluids can affect cement slurries in several ways; they can case increment or reduction in the thickening time, retarded compressive strength development, and increase of the rheological values of the slurry. A consequence of increasing...

... 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...

... of novel materials technology. fibre upstream oil & gas test method application ply test data manufacturing process composite pipe strength composite material compressive strength pipe coupon load case offshore technology conference laminate axis thermoplastic composite pipe...

..., 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...