Daily News
Project Acronym: HSDP | State: Completed | Expedition ID: 5027
ins.: 2003-05-05 02:00, 22 yrs ago

Category:
Hawaii_

hawaii: 2003-05-05
The interval of pillow lavas at ~2000 m has continued ...

The interval of pillow lavas at ~2000 m has continued to challenge us. We are having difficulty finding a balance point for the formation pressures - at too light a mud weight, the hole will begin to flow; at a slightly heavier weight, we begin to lose mud into the formation at a very rapid rate. Either way, we are burning through our mud supply much faster than we would like. We are going to try to send some lost circulation material (paper or possibly cotton seed hulls) into the hole to see if we can't plug off some of the zones that are taking fluids. If we can pack off the lost circulation zones, it will let us maintain the mud weight on the higher side to keep from having to fight the formation pressures as we go deeper. We are currently at about 2100 m.