... geologist wellbore design cement formulation operational safety compressive strength cement property wellbore integrity design for well integrity geology drilling fluids and materials system exposure reaction front co 2 brine cement system temperature and pressure blend component variation...

... investigates the mechanical behaviour of different formulations of well cement, focusing on the effects of supercritical CO 2 exposure on the cement's porosity, permeability and mechanical properties. The formulations tested in this study are neat Class H cement, neat Class C cement, a high porosity...

... Abstract Carbon Capture and Storage (CCS) is critical for meeting global climate goals, yet its large-scale deployment faces significant economic and operational challenges. This study introduces lean CO 2 injection well designs to address scalability issues, emphasizing cost efficiency...

.... This paper identifies metals and elastomers that can withstand CO 2 fluids and impurities throughout a well's life, with a focus on Metal Expandable Packer (MEP) technology. The combination of impurities and formation fluid in a well often creates a corrosive environment for completion equipment...

... Abstract Objectives/Scope: With the expected upscaling of the Carbon Capture and Storage (CCS) activity in coming years, the need for drilling infill wells for CO 2 sequestration, i.e. wells that penetrate formations that already contain stored CO 2 , will inevitably arise. Hence, the risk...

... Due to a number of environmental, economic, and political factors, projects to reduce net carbon dioxide (CO 2 ) emissions are accelerating. The most popular methods are perhaps carbon capture and sequestration (CCS) and carbon capture utilization and storage (CCUS), which typically require...

... Abstract By the implementation of carbon capture and storage (CCS) as an important climate action, infill drilling in CO 2 -rich storage sites will be expected. This implies that actions for handling an influx of CO 2 into the drilling fluid must be prepared for. This study aims to close some...

... iadc spe international drilling conference drilling operation generator emission consumption generator runtime co 2 efficiency energy storage system enable operation Introduction In the global effort to mitigate greenhouse gas emissions, the oil and gas sector is actively addressing its...

... Even though more oil and gas will be required, there is an expectation that the industry will continue to reduce GHG emissions, in particular CO 2 , which constitutes 73% of emissions according to the EIA. Statistics show that the United States alone produced 6,430 million metric tons of CO 2 e...

... Building on a successful history of developing unique solutions for well design modeling problems, Harbour Energy and Altus Well Experts identified an opportunity to collaborate and develop the capability to accurately model CO 2 injection well design loads using a cloud-based software solution...

... cement system was best suited for exposure to the anticipated pressure and temperature cycles during injection and production. Based on the simulation results, the operator decided to use an environmentally compliant flexible (ECF) cement system. This novel system also significantly reduced the CO 2...

... drilled using a remote operations center utilizing latest digital capabilities, reducing onsite footprint. Based on the most conservative figures from field test results and projected usage, the increased efficiency and faster well delivery time can significantly impact sustainability, reducing CO 2...

... Abstract This paper discusses a methodology for the design of wells in carbon capture and sequestration (CCS) projects. In addition to carbon dioxide (CO 2 ) injection wells, CCS wells include observation or monitoring wells, as well as utility wells, which are used to reduce pressure...

... CO 2 generation. Analyzing the data available from two modern land rigs we have measured the CO 2 released for drilling different wells in different basins. We have also segmented the emissions by the rig systems using the power they consume. We show that the mud pumps are the biggest culprit...

... but not excessive linear expansion is required. The cured cement must be resistant to hydrocarbons, underground water, etc. The resistance to CO 2 and H 2 S needs to be tested and quantified if applicable. Quantifiers for this are change in permeability and mechanical properties as well as mineralogy...

... Abstract In a joint effort, an oil and gas operator and a service company have undertaken research to help overcome well integrity and cementing fluids challenges in the presalt wells of Brazil where some fields present high levels of CO 2 in reservoir fluids. Results are provided from...

... in investigating the long term effects of CO 2 on Portland cements. Portland cement will react with the injected CO 2 , and while recent research indicates these conventional cements are not a concern, additional work is ongoing to improve the long term effectiveness of the wellbore sealant. Efforts have focused...

... for well-life. Bonds to casing and formation. Has low permeability to resist reservoir fluid migration and attack. Stable under downhole conditions of temperature, pressure, and chemicals such as CO 2 and H 2 S. Well Details Abstract The Kashagan Field is located in the northeast end...

... centigrade did not undergo any significant phase transformations; the laser radiation on a sample of fused quarts did not damage it, resulting in a slight surface melting. From experiments using relatively low-power CW CO 2 lasers with output powers 1 kW, Mukhamedgalieva et al concluded: CW CO 2 laser...

... corrosion rate when the pH of the solution was maintained above 9. On the other hand, the corrosivity of K-formate brine increases in the presence of CO 2 due to the formation of formic acid. The results of this study were implemented on several gas wells. The first gas well drilled with formate brine...