Synthesis and Performance Evaluation of SF-4 Spacer Fluid for Open-Hole Completion with Oil-Based Drilling Fluid in the East China Sea
As oil and gas exploration and development in the East China Sea advance toward deeper and hotter formations, direct contact between oil-based drilling fluid and water-based completion fluid can cause severe rheological incompatibility during open-hole completion. This study developed an amphiphilic SF-4 spacer based o...