RE: BREAKING NEWS on Renewable JV Initiative!22 Sep 2025 09:50
"Impact of the acid wash
The presence of carbonates and the subsequent acid wash directly address a second, independent cause of low flow that can compound the wax problem.
Formation damage removal: Drilling operations can cause fine rock particles, drilling mud, and other debris to clog the pore spaces of the reservoir rock near the wellbore. This is known as "skin damage".
Dissolving carbonates: Carbonate rocks (limestone, dolomite) are highly reactive to acid. An acid wash or "matrix acidizing" involves pumping acid into the formation at a pressure below the fracturing pressure. The acid dissolves the carbonate rock, as well as any other acid-soluble materials, effectively reopening the natural flow channels.
Creating "wormholes": In carbonate formations, the acid can create new, highly conductive pathways called "wormholes" that bypass the damaged near-wellbore area.
Post-rework expectations: The acid wash is highly likely to be effective. By removing the carbonate-related formation damage, the treatment will lower the resistance to flow from the reservoir into the wellbore, leading to a significant and sustained increase in the well's productivity. "