Mud Displacement Oil Rig | 9 Aspects To Improve
Several procedures are available for improving mud displacements in any oil rig or gas rig and they need to be considered when planning a displacement in order to prevent or minimize fluid contamination. However, operational factors may restrict the use of some of the following procedures: 

- Direct and Indirect Displacement 
- Displacement Direction 
- Displacement Rate 
- Spacer and Pill Volume and Contact Time 
- Displacement Density Hierarchy 
- Displacement Viscosity Hierarchy 
- Scraper
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