This spacer system creates a shield/barrier at the face of the formation to prevent cement fluid from penetrating into the formation thereby mitigating lost circulation concerns during the cementing process.
Since the unique seal formed by ECDGuard raises the formation’s fracture pressure, cement can be placed at casing depth with higher equivalent circulating densities (ECDs) without increasing the risk of formation break down. This capability is highly beneficial in wells where a narrow margin exists between the fracture gradient and pore pressure gradient.
ECDGuard-LCM4K is a lost circulation additive to the ECDGuard spacer system to remediate against complete and total losses. ECDGuard-LCM4K is formulated to prevent losses with fracture sizes of 4,000 microns.
- ECDGuard and the LCM4K additive should be stored in a dry environment
- Proper PPE must be used to avoid dust exposure