... Abstract In this paper, a new workflow for data wrangling, cleansing, processing, automated identification and classification of drilling dysfunctions (e.g. bit balling, drillstring vibrations, etc.) for any number of wells is presented. Statistically-derived baseline rock strengths were used...

.... Core data also indicate strong vertical transverse isotropy in the shale units. Combined with occurrence of various types of naturally-occurred sub-vertical fractures and sub-horizontal polished slip faces, weak bedding plane strength, and strong anisotropy in in-situ stresses, and high heterogeneities...

... angles of weakness planes and estimation of mud weight for drilling optimization. The near wellbore stresses are calculated using Lekhnitskii-Amadei (1983) solution. Intact rock matrix failure and multi-weakness plane failure are incorporated to characterize anisotropic rock strength and its failure...

... strength water content fresh water fracture face drilling fluid complex reservoir gas production shale mechanical property gas shale hydraulic fracture fracture boundary condition instability shale failure Gomez effective stress primary fracture shale sample interaction stress change...

... Reservoir Characterization Artificial Intelligence tensile failure strength Upstream Oil & Gas variation minimum principle stress stress tensor azimuth angle anisotropic stress field cement property cement chemistry isolation mechanism stress field tensile strength coordinate system...

... affected by a combination of multiple factors. Dry events were mainly affected by the total stress change or shear stress change and the initial strength of the natural fractures while the wet events were affected by the total stress change or shear stress change, the initial strength of the natural...

.... A new smart-engineered, metallic composite has been developed to optimize this process and provide flow assurance. This new technology eliminates the need to later perforate the liner, further reducing costly interventions. High-strength corrodible material (HSCM) is a metallic composite designed...

... typically prevented in intact shale formations by increasing mud weight since higher mud weight can reduce hoop stresses and raise the radial stress around the wellbore. However, the stress concentration and the formation strength around the wellbore can change with time leading to wellbore instability...

... displacement upper block contact stress fracture fluid complex reservoir inclination angle natural fracture fluid flow reach steady state hydraulic fracturing strength Simulation fluid pressure boundary interface MPa analytical solution spe 167244 fracture Introduction Hydraulic...

... and cementing reciprocation centralizer spe 162739 mud removal drilling operation strength rotation centralization standoff Introduction Well cementing is one of the most critical steps of the well completion procedure. As the last step in well construction, cementing is sometimes is not given...

...-permeability liquids-producing reservoirs and shows how fracture conductivity and economic optimization can be better achieved. proppant lateral spe 162181 shale completion model hydraulic fracturing strength completion application fracturing fluid concentration operation conductivity...

... Methane (ECBM) productions. reservoir characterization strength particle fluid pressure upstream oil & gas reservoir formation birkholzer tensile aperture simulation international journal investigation injection subsurface storage csug spe 148949 co 2 particle size fracture...

... making inferences about well production. wellbore integrity strength fracture conductivity coefficient wellbore design upstream oil & gas elastic property horizontal wellbore horizontal stress rock type hydraulic fracturing surface area drawdown pressure solid production near...

... strength upper huron shale reservoir characterization acoustic processing modeling borehole slowness azimuthal anisotropy mineralogy fracture csug spe 148411 shale b-sand interval anisotropy well logging frequency natural fracture huron shale upper devonian huron shale lithology...

... Abstract Based on its deformation properties, Alberta oilsands reservoir material is classified as an interlocked sands. It possesses relatively high initial friction strength and exhibits a significant dilation tendency once it is shear-mobilized. How does such a medium behave under high...

.... A mini-frac test program was undertaken to define the original in-situ stress state. Laboratory tests were carried out to measure the deformation and strength properties. Simulations were run to calculate the induced stresses and evaluate them against the mechanical strength. Consequently, a factor...

... modification included an additive to promote bulk cement expansion during hydration. Since implementation, this approach, coupled with good mud removal and cementing best practices, resulted in rapid static gel strength (SGS) development, acceptable compressive strength development and waiting on cement (WOC...

... conductivity to the wellbore. Long-term conditions such as reservoir souring and the potential for CO 2 enhanced oil recovery (EOR) within the Bakken were considered in the study to examine the effects on proppant strength. The possibility exists for proppant degradation due to the large amount of fluids...

... equation 6 gives: (8b) Δ T = σ n α E This is the formula used to calculate ΔT y shown in Table 3 for the appropriate yield strengths on bare pipe. However liners are not bare pipes. They have slots or circular holes in them as discussed above. This leads to a concentration...

... cement system cement formulation afe thermal lead thermal lead cbl-vdl good isolation cement sheath steam-assisted gravity drainage oudeh afe thermal lead well integrity tishreen afe thermal lead strength enhanced recovery sagd upstream oil & gas csug spe 137079 casing and cementing...