... the effectiveness of acid fracturing, while the FCDI accounts for the impact of in-situ stress and rock compressive strength on fracture conductivity. The workflow recommends using acid fracturing when the AFCT is high and the FCDI is low, indicating favorable conditions for acid treatment. Conversely, it suggests...

... drilling efficiency drilling dysfunction drilling dynamic strength hole enlargement geologist reamer reservoir geomechanics torque higher uc drilling parameter hewd bha International Geomechanics Conference (IGS) ARMA-IGS-2024-154 Impact of Formation Heterogeneity on Efficiency of Hole...

... problems occur in shale formations (Steiger and Leung, 1992). These problems can be triggered by borehole failure owing to variations in strength properties along and across bedding planes (Tsusaka et al., 2021) and pore pressure changes (van Oort et al., 2019). Understanding the factors affecting wellbore...

... ABSTRACT: The point load strength index (I s(50) ) is the critical parameter in evaluating the mechanical response of rock. Due to its ease in specimen preparation, this index test becomes even more important for calculating the strength index of layered anisotropic rocks. However, an accurate...

... process. In principle, the rate of sand production mainly depends on rock strength inside sandstone formations. Hence, this study investigates the impact of quartz hydrolysis, a chemical reaction between quartz and water, leading to silica dissolution on sandstone strength as a function of water...

... properties. The experiments demonstrated that the mean applied stress and flow rate are the most influential factors affecting this transition, followed by material strength, viscosity, and permeability. Further, the use of Support Vector Machine regression analysis validated these findings, achieving R...

... initiation horizontal phase angle discrete lattice method vertical density morphology strength hydraulic fracture injection pressure evolution directional propagation vertical phase angle breakdown pressure International Geomechanics Conference (IGS) ARMA-IGS-2024 477 Influence of Vertical...

... fluid chemistry preservation hpwbm soltex drilling fluids and materials drilling fluid selection and formulation reservoir characterization naf 20 strength application abu dhabi International Geomechanics Conference (IGS) ARMA-IGS-2024 550 Laboratory Workflow for Shale Drilling-fluid...

... strength of deep coal in the direction parallel to the bedding is 0.40 MPa, and in vertical bedding direction is 1.21 MPa. In the perpendicular bedding direction, the fractures formed after coal splitting are more complex, indicating that bedding direction has a significant impact on the tensile strength...

... and true triaxial fracturing experiments were carried out. We found that the mechanical strength of mudstone is significantly higher than that of coal: in terms of the average values, the elastic modulus, uniaxial compressive strength, tensile strength, and fracture toughness of mudstone are 2.65 times...

... geomechanical challenge horizontal stress proppant permeability wellbore stability reservoir characterization fault reactivation deepwater environment fracture gradient injection strength International Geomechanics Conference (IGS) ARMA-IGS-2024 875 Technologies to mitigate Geomechanical...

... the operating efficiency of the fan under the premise of ensuring low noise and structural safety of the fan. Mainly from the blade design, hub structure design and overall structural strength calculation and analysis. Firstly, in the aspect of blade design, the fifth generation bending-swept orthogonal three...

... Abstract: To determine if the size of a cemented mill tailings sample affects its unconfined compressive strength (UCS), researchers with the National Institute for Occupational Safety and Health (NIOSH) conducted three series of UCS tests with cylindrical samples of cemented paste backfill...

... material in CPB applications. CPB samples were prepared with different dosages of BF (0.5%, 0.75%, and 1%) using two different fiber lengths (12-mm and 18-mm). CPB samples were tested for unconfined compressive strength (UCS) after 7, 14, and 28 days of curing. The findings show that BF can improve UCS...

... is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 200 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgement of where and by whom the paper was presented. ABSTRACT: This paper investigates the degradation of tensile strength...

... hydraulic fracturing canada government rock mechanic mining science deformation ijrmm cavern sandstone zhang sustainable development evolution strength salt cavern geological subdiscipline cyclic loading international journal effect experiment Abstract The expanding global...

.... The effective stress in the formation is altered due to changes in the load- bearing part of the matrix. The effective net stress that controls deformation is given by: = 1 Where is defined as the magnitude of the effective stress. = 2 + + 2 sin =0 Where c and are cohesion strength and internal friction...

... pressures and strong heterogeneity, focusing on rock strength, natural fracture density, and reservoir permeability. Results indicate that the fracturing fluid filtration coefficients of the rock matrix in target layer are very small in the range of 10 -5 m/s 1/2 , which makes a low permeable formation. G...

... by the production of hydrocarbons, leading to the production of sand along with oil and gas (Ahad, 2020). The onset of sand production can be predicted using the following equation: = (2 3 Where: = the pressure required to initiate sand production = the tensile strength of the rock formation = the uniaxial...

... , is often used to evaluate the development of rock fractures, kv = Vp Vc 2 (1) where Vp denotes the longitudinal wave velocity in the rock mass, Vc is the longitudinal wave velocity in intact rocks, and kv varies from 0 to 1. From the rock mass integrity coefficient, the strength of rock mass...