... proven to be inefficient. fluid dynamics structural geology rock type enhanced recovery carbonate reservoir drilling operation flow in porous media reservoir characterization sedimentary rock carbonate rock complex reservoir plug economic geology core plug stimulation permeability...

... injection rates on sandstone plugs through laboratory experiments performed at pressure and temperature reservoir conditions using a relative permeameter system (RPS). First, the petrophysical properties of the dry plugs were measured. Then, the plugs were placed in the RPS and saturated with brine. After...

... Resistant (HMR+) cement. The cement plugs were immersed in brine (HMR+ cement) or tap water (Class G cement), before pressurizing the headspace of the autoclaves with CO 2 . Reference experiments were conducted for comparison using N 2 -gas as headspace. Micro-CT scans and compressive strength measurements...

... be achieved. This concept has been extensively tested in the yard using full-scale casings and simulated downhole pressure and temperature conditions. casing and cementing completion installation and operations land reclamation plug bismuth alloy drilling operation alloy fixture casing design...

... reservoir characterization injection workflow hydrocarbon reservoir characterization cc application co2 plug variation interaction permeability caprock Introduction For CCS projects, the role of experimental activities is crucial to characterize the storage complex and CO 2 plume...

... Abstract Due to new environmental and cost challenges in the oil and gas industry, operators are looking for solutions to save costs and reduce their CO2 footprint. The main objective of this project was to find a solution to save time in the plug and abandonment (P&A) operation and reduce...

... core plugs, and preserved reservoir core samples. It's crucial to highlight that existing literature data predominantly relies on outcrop sample experiments, potentially limiting their relevance to reservoir conditions. Computed tomography (CT) images were captured before the experiments to assess rock...

... injection with aquifer drive. A set of 23 core plugs were subjected to repeated brine infiltration and drying for varying cycles and drying methods, and characterized by dried-state measurements of helium porosity, Klinkenberg permeability and mercury intrusion capillary pressure, plus non-destructive 3D X...

... are fundamental for understanding the dynamics within the heterogeneous reservoir. Core floods were conducted using low permeability (perm) and high perm core plugs to capture the breadth of reservoir conditions. This approach allowed for a detailed evaluation of displacement efficiency and potential injectivity...

... Unsteady and Steady State methodologies. The experiments followed laboratory methodologies necessary for reservoir condition aiming also to improve the existing protocols and maximize the acquired data quality. Core Plugs in a broad range of permeability (0.1-600 mD) were tested. X-ray tomography permits...

... geologist united states government upstream oil & gas tracer test analysis casing and cementing well decommissioning geology europe government production monitoring tracer production control chemical tracer plug experiment stability integrity matrix acid portland cement...

... modeling & simulation injection surfactant concentration geology flow in porous media polymer ipv breakthrough polymer injection brine flush plug cf1 surfactant ipv pvi surfactant slug interaction polymer ipv surfactant adsorption Introduction The main physical mechanisms...

... type-sc geology cement type-g upstream oil & gas europe government experiment plug type-a aluminoferrite composition exposure compressive strength investigation permeability portlandite geologist natural gas storage geological subdiscipline hydrogen ch 4 interaction autoclave...

... ) and diammonium phosphate ((NH 4 ) 2 HPO 4 ) are applied in 1.5 in × 3 in Austin chalk and Indiana limestone plugs. First, acid was injected using a coreflooding setup to create wormholes fully penetrating the sample. The acidized plugs’ hardness was assessed by two non-destructive techniques (i.e., impulse...

... Abstract The global oil and gas industry will experience intensive well decommissioning activities, with tens of thousands of well plug and abandonment (P&A) operations forecast to be executed worldwide, over the next few decades. In the North Sea alone, 2,624 wells are expected...

... Abstract This paper will describe a workflow undertaken to address potential risks highlighted by a review of a well abandonment plan. The specific issue is described by the potential for failure of a secondary abandonment plug, should the primary plug set relatively deeper had failed...

... drilling fluid formulation surfactant adsorption concentration pore structure petrophysical property experiment mineralogy reduction process dithionite mineral porosity plug injection Production Chemistry fluid compatibility Upstream Oil & Gas iron oxide restoration iron concentration...

... to be stimulated by means of multistage hydraulic proppant fracturing. The hydraulic fracturing treatment used sand plug isolation to separate consecutive fracture stages, and the fracture stimulation operations were performed with the rig in place by means of a converted stimulation vessel. The stimulation...

... per day, fewer safety incidents, etc.) as well as improving communication and teamwork. An explanation of this new approach is detailed here. upstream oil & gas efficiency plug weatherford completion installation and operations coordinator service coordinator on-site coordinator...

... accomplished this. The two main methods of horizontal, multi-stage completions currently used in unconventional reservoirs are: cemented liner "plug and perf" and open hole, multi-stage fracturing systems. This paper provides an introduction to unconventional reservoirs, describes the main methods...