... ABSTRACT: In carbon capture and storage schemes, the carbon dioxide (CO 2 ) can be injected at high pressures and low temperatures for permanent storage in deep reservoirs. In the North Sea, the storage sites will be predominantly sandstone. Triaxial tests on sandstone were conducted until...

... ABSTRACT: Tracking the migration of injected CO 2 is critical to understanding the performance of subsurface intervals selected for CO 2 sequestration. Measuring and analyzing the shape and magnitude of the surface deformation caused by subsurface CO 2 injection, provides confidence...

... ABSTRACT: The primary oil recovery in the Bakken Petroleum System is still small, with a range of 5% to 12% of the original oil in place (OOIP). This study aims to investigate the potential and the performance of CO 2 injection with HnP on the recovery factor (RF) in Upper Three Forks (UTF...

... ABSTRACT: There are numerous geomechanical challenges and risks associated with CO 2 injection and geological storage that are required to be addressed for maintaining seal integrity throughout the injection operation and storage life. The assessment of geomechanical-related challenges...

... ABSTRACT: We present experimental results of brine and supercritical CO 2 (scCO 2 ) relative permeability experiments with active ultrasonic monitoring at reservoir conditions in the Bluff and Entrada Sandstones (NM, USA) from outcrop, which are being considered as possible geologic carbon...

... ABSTRACT: Supercritical CO 2 (SC-CO 2 ) is regarded as a promising fracturing medium to exploit unconventional oil and gas resources. However, the reactions between CO 2 -brine-rock would change the mechanical properties and microstructure of rocks during SC-CO 2 fracturing. To explore how...

... ABSTRACT: Injecting CO 2 into a deep geological formation (i.e., geological carbon storage, GCS) can induce earthquakes along preexisting faults in the earth’s upper crust. Seismic survey and regional geo-structure analysis are typically employed to map the faults prone to earthquakes prior...

... Poisson’s ratio. Injection of corrosive CO 2 at 0.5 MPa, reduced the compressive strength of the four resins within the range of 4.9% ~24.3%. A 100g of epoxy resin mixed with 10 g of diluent and 20 g of the curing agent significantly reduced the curing time. In addition, this mixture increased the maximum...

... ABSTRACT: Full-scale implementation of CO 2 storage requires a number of challenges to be addressed, among them is reliably assessing geomechanical risk at storage sites. A 3D mechanical earth model (MEM) can be used to understand how rock types and stresses are distributed in the 3D space...

... spanning all possible locations and injection rates and finding an optimum solution that maximizes net present value. 1. INTRODUCTION CO 2 storage in deep geologic formations is one solution to reduce CO 2 emissions and CO 2 atmospheric concentration (Bachu, 2008; Benson and Cole, 2008; Bickle, 2009...

... ABSTRACT: Accessible to inaccessible nanopore structure, distribution and complexity controls the storage, transport, and recovery of gas-shale. Fluid- (low-pressure N 2 and CO 2 adsorption) and radiation-based (small-angle scattering) methods used to characterize the connected...

... of differential stress. Creep stages lasted for either 24 or 48 hours and prior to creep the Young’s modulus was estimated based on the loading history. When CO 2 results are compared to the argon results, the Young’s modulus of the carbonate-rich sample increases, while the Young’s modulus of the clay-rich...

... ABSTRACT: In the pursuit of net-zero carbon by the year 2050, the PETRONAS Group Research & Technology has executed CO 2 storage studies incorporating laboratories results as well as with advanced simulation modelling prior to project execution for a case study in the year 2025...

... re-purposed for CO 2 injection. This investigation covers the construction of the well, reservoir depletion, CO 2 injection and long-term storage conditions. This demonstrates the type of data necessary for the tool to function, the different results and outputs that may be expected and the type...

... ABSTRACT: Wellbore integrity to ensure efficient, economical, and environmentally friendly operations is a significant and fundamental challenge for CO 2 sequestration wells. The carbonation reaction between Portland cement and CO 2 can change the microstructure of the cement skeleton...

... ABSTRACT: Carbon capture and storage in deep geological formations is necessary to achieve a meaningful reduction of anthropogenic CO 2 emissions into the atmosphere. Given the buoyancy of the injected CO 2 , it is essential to adequately characterize the sealing caprocks commonly comprised...

... ABSTRACT: Recent studies have shown that shale reservoirs can be an attractive candidate as a CO 2 storage reservoir or a caprock for geologic CO 2 sequestration. Shales are source rocks, and thus, there is a continuous diagenetic process that can alter its properties during thermal maturity...

... ABSTRACT: Corrosion of tubing steel induced by H 2 S and CO 2 is an important risk factor for oilfield production and development. The trace amounts of H 2 S can induce local corrosion of X65 carbon steel, but there are few researches on the corrosion of low Cr steel. In this paper...

.... Injection of Supercritical CO 2 (ScCO 2 ) may cause changes in the elastic behavior of the rock and therefore may reactivate the fault in the Bakken Formation. This research aims at studying the changes in the MB mechanical properties when flooded with ScCO 2 for 30 days, and to quantify the physical...

... ABSTRACT: Using depleted oil and gas reservoirs to sequester CO 2 is an effective means of mitigating the greenhouse effect. The long-term integrity of the cemented surface of the cement plug is directly related to the risk of CO 2 leakage. In this paper, based on the cohesive element method...