Mechanical Properties of Sandstone using non-Destructive Method

Abstract

The understanding of physical and mechanical properties of rock is considered as critical in drilling, geo-engineering, and construction applications. As an example, the awareness of these rock parameters contributes to avoid or minimizing instability around the wellbore while drilling. The laboratory experiment of understanding of these parameters can be done in two-different ways: static, where the sample subjects to destruction after the test and dynamic, known as non-destruction method. The non-destructive method using ultrasonic waves under a series of different stress conditions, starting from 7 to 56 MPa with incrementation of 7MPa, has been used in this paper in order to characterize the mechanical properties of dry Zbylutów sandstone at 20 and 80°C. The velocity of primary (P) and secondary (S) waves within these ranges has been recorded in order to understand the behavior of the mechanical properties. The results showed that the Young’s modulus, bulk modulus, shear modulus, and Lame’s constant of Zbylutów sandstone have a positive correlation with good coefficient correlation with the increased stress, while the Poisson’s ratio showed a negative correlation. Besides, the effect of temperature on the rock parameters is approved by the decrease of primary wave velocity in this two-different temperature range. Such results are necessary when preparing the appropriate mud weight for drilling process, which is related to wellbore instability.

Drilling Mud Influence on Sandstone Poroelastic Parameters

“…In the present work, the effects of different types of saturation fluids as well as the increase of confining pressure on the velocities of the compressional wave through sandstone rock will be investigated, together with the poroelastic parameters that relate to them. An acoustic velocity system (AVS) is an apparatus used to measure the dynamic mechanical properties of rock samples using acoustic waves [24]. It is made up of a panel, core holder, pressure pipes, acoustic transducers and receivers, switch box, digital oscilloscope, hand pump, heating mantle, and a computer for data storage and analysis.…”

Simulation study on the size effect of joint roughness on bulk modulus

“…Qiao et al (Qiao et al, 2018) proposed a non-linear hyperbolic model between average stress and bulk modulus through triaxial compression test. Rajaoalison et al (Rajaoalison et al, 2020) obtained the law of the bulk modulus and stress by ultrasonic nondestructive method under different stress conditions. In terms of temperature, Xiong et al (Xiong et al, 2019) obtained that with the increase in temperature, the bulk modulus of shale decreased.…”

An Investigation into Current Sand Control Methodologies Taking into Account Geomechanical, Field and Laboratory Data Analysis

“…Interdependences were investigated within the framework of a field with high viscosity oil, currently under development between the following parameters: the number of suspended particles, the influence of the sand production process on the operation of individual wells and the study of the effectiveness of screens of certain standard sizes and structures [49,50]. It was found that with different production rates and water-cuts, the interdependence of the number of suspended particles on certain parameters may or may not be observed, as, for example, with the flow rate: its increase or decrease does not affect the number of suspended particles in the fluid flow, which is unexpected (since the fluid flow with a higher speed should entrain more rock particles from the formation).…”