... and after exposure to the solutions. Rebound hammer tests were also conducted to show the effect of the solutions on the samples’ mechanical properties, such as Young's modulus and compressive strength. The test results show that the physical properties such as dry weight, bulk density, and bulk volume...

.... Unconsolidated sand reservoirs are prone to rock failure which induces the mobility of sand particles. Stress orientation regimes are properly captured by assessing the orientation of current petrophysical data. Acoustic data is also reviewed for proper in-situ rock strength property calculation. Formation...

... earth model (elastic and strength properties and stress field) to address the main challenges and the root causes of sanding in clastic reservoirs in South of Iraq. The analysis includes the following: Critical Draw Down Pressure (CDPP) profile in different levels of reservoir depletion resulting...

... operations. The biggest challenge in this work was developing a flowable heavy weight geopolymer formulation with good rheological properties and sufficient thickening time. The evaluation included rheological properties, fluid filtrate, strength, petrophysical and dynamic elastic properties...

... Abstract Understanding of rock strength, and its variability along the length of the well, is essential for building an efficient well trajectory during geosteering operations. Traditionally, drill cuttings, surface gas analysis, measurements while drilling (MWD) data and Logging While Drilling...

... wellbore azimuth operation wellbore design strength equation coefficient modeling rock type geologist strike-slip fault regime geology input data failure criterion mud weight density sensitivity analysis clastic rock geological subdiscipline elastoplastic model rock strength wellbore...

...-made thermally activated resin was designed in the lab to build a high compressive strength and durability and was not prone to cracking as the target treatment interval would be subjected to a pressure test as part of the conformance analysis. Conventional approaches to repair this type of leaks...

... strength which prevents an accidental sidetrack. The stratigraphic column of Southern Iraq has within the first 2,500 meters of depth the Dammam, the Hartha, and the Mishrif formations, which are highly susceptible to lost circulation problems, and ineffective treatment can lead to an increased rig time...

... government acid uae government strength enhanced recovery hcl calcium carbonate united states government norway government lactic acid concentration breakthrough solubility sedimentary rock rock type core plug precipitation calcium lactate precipitation carbonate acidizing geology...

... focus on developing high-density, high-strength, Fluid-Gel-Solid based lost circulation material (LCM) using novel surfactant with acid soluble sealant powder to cure the severe losses scenario. Particulate material, polymer based system, cement, resin etc. has been used as lost circulation mitigation...

... to be colloidally stable so they will not sediment or aggregate and the stability is maintained for years. Colloidal silica has been used in oil filed cementing for many years as an additive for gas migration control, liquid extender, and early strength accelerator. One example from the literature is Patil...

... Strength (SGS) tests. In addition, UCA and mechanical properties tests were conducted in the lab to provide for tailoring the mechanical properties. With slurries having higher concentrations of particulate additives (elastomers & fibers), it is difficult to accurately measure their viscosity using...

... that the bridging materials used do not only help in stopping mud losses by plugging the formations and fractures but an engineered application of particle size distribution of these different types of materials can effectively develop a "stress cage" and increase the rock strength in the near-wellbore wall area...

... with resultant low-pressure ratings. This has restricted a more widespread use of the material, particularly for downhole applications. In recent years, extensive research and development has evolved to manufacture 100% non-metallic composite tubulars with increased mechanical strength combined with high...

... reservoir characterization journal simulation wellbore drilling fluids and materials drilling fluid selection and formulation buildup figure strength geomechanics collapse mud weight filter cake effective tangential stress evolution mud weight wellbore wall filter cake buildup radial...

... government spectrum linewidth downstream oil & gas well logging concentration spectra molecule database procedure strength nmr spectra variation application gas mixture component quantification peak position nmr spectroscopy dependency fingerprint misfit pressure range intensity...

... and operations subbiah well logging flow assurance strength perforation tunnel approach failure criteria mechanical behavior prediction conference elastic property january 1 stabilization proc sand production compressive strength journal mechanism propensity constitutive model pore pressure...

... delivery efficiency. Due to its inherent physical characteristics of abundant geological weak layers such as bedding planes and fractures, the shale oil formation has relatively low bulk strength. Wellbore instabilities in this shale oil formation are prevalent when drilling highly deviated...

... and materials drilling fluid degradation shale-drilling fluid interaction amanullah asia government shale gas drilling operation strength journal mitigate borehole instability problem sedimentary rock clastic rock water-based mud rock type mudrock mudstone geologist mudstone mohr-coulomb...

... will be driven out of the formation and the pore pressure can be dropped significantly. In naturally fractured formations, the natural fractures speed up the diffusion process and degrade the mechanical strength, causing the safe mud weight window much narrower. fluid dynamics human computer interaction...