Blar i SINTEF Industri på tidsskrift "Rock Mechanics and Rock Engineering"
Viser treff 1-7 av 7
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Can Heating Induce Borehole Closure?
(Peer reviewed; Journal article, 2020)The current study shows that heating a cased borehole in low-permeability shale rock can induce plastic deformation, leading to the closure of the casing annulus and decreasing annulus connectivity. The thermally induced ... -
Fast Evaluation of Caprock Strength Sensitivity to Different CO2 Solutions Using Small Sample Techniques
(Peer reviewed; Journal article, 2021)The Draupne shale is a rock formation functioning as overburden for gas reservoirs in the Norwegian Sea and potentially as caprock for future CO2 storage locations as well. In this paper, the Draupne shale was exposed to ... -
From Static to Dynamic Stiffness of Shales: Frequency and Stress Dependence
(Peer reviewed; Journal article, 2019)The relation between static and dynamic stiffness in shales is important for many engineering applications. Dynamic stiffness, calculated from wave velocities, is often related to static stiffness through simple empirical ... -
Influence of Weight-on-Bit on Percussive Drilling Performance
(Peer reviewed; Journal article, 2020)A phenomenological model for percussive drilling systems is proposed in this paper to explain the experimentally demonstrated existence of an optimal weight-on-bit (WOB), for which the rate of penetration (ROP) is maximized. ... -
Productivity Decline Mechanisms in Gravel Packed Perforations
(Peer reviewed; Journal article, 2023)In a cased hole gravel pack completion, perforations are packed with proppant to both mechanically support the perforation cavity, and to filter any produced sand before it reaches the surface. Poor perforation packing ... -
Thermo‑Poromechanical Properties of Pierre II Shale
(Peer reviewed; Journal article, 2022)During the injection of carbon dioxide (CO2) for CO2 capture and storage (CCS) operations, the near-well (including casing, cement, and rock around it) can undergo several thermal loadings. These loadings can significantly ... -
Weakening of Compressive Strength of Granite by Piezoelectric Actuation of Quartz Using High-Frequency and High-Voltage Alternating Current: A 3D Numerical Study
(Peer reviewed; Journal article, 2023)Piezoelectric excitation of quartz mineral phase in granite using high-frequency and high-voltage alternating current (HF-HV-AC) is a potential new weakening pretreatment in comminution of rock. The present study addresses ...