plugging and abandonment

This case study investigates the reasoning behind the solidification of barite behind the casing with the aim of developing solutions for efficient casing removal and the potential use of settled barite as a barrier material.

A fundamental research study is conducted to confirm the potential usefulness of chelating agents in dispersing settled barite, emphasize the complex nature of the factors that control this process, and provide a solid basis for future studies aimed at optimizing dispersion methods in industrial applications.

A comprehensive study looks at the sealing efficiency of eutectic bismuth-tin alloy plugs in wells slated for plugging and abandonment through laboratory testing, microscopy analyses, and numerical simulations.

Companies are rushing to inject carbon into Louisiana’s ground, but will thousands of abandoned wells allow it to escape?

Casing deformations are common in the south-west shale regions of China and the Middle East, where the widespread use of 5.5-in., 26- and 26.8-lb/ft casing is the norm. In these regions, the majority of frac plugs are designed with an outer diameter (OD) of 4.055 in. or slightly larger, which frequently encounter restrictions resulting in the loss of bottomhole assemb…

The funding comes from the Investing in America agenda with the goal of addressing legacy pollution.

This paper discusses housing pulverized blades mixed with Portland cement in wells considered for plugging and abandonment.

Prior to proceeding with a contract to fulfil a rigless P&A campaign for Sasol in Mozambique, BiSN designed a field trial to prove the effectiveness of its bismuth plug technology. Although the technology had been used in 19 countries by BiSN for a variety of downhole applications, it had not yet been qualified for use in Mozambique.

This paper presents a low-impact solution for well abandonment with fully electrified equipment that mostly uses grid power in an urban area.