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Project Acronym: HSDP | State: Completed | Expedition ID: 5027

ins.: 2003-05-12 02:00, 23 yrs ago
By: Scientists
Category: Hawaii_
Hawaii_

hawaii: 2003-05-12

Drilling continues reasonably well. We are now at a depth ...
https://www.icdp-online.org/fileadmin/icdp/projects/data//hsdp//2003_05_12/IOD_DESC.txt

Drilling continues reasonably well. We are now at a depth of ~8260' and pulling the drill string to replace the worn bit. We are still having problems with formation pressures (see photos). Pretty much every time we pull the string we are getting water flow of 1000 gpm or better if we don't take measures to control the flow with heavy mud. We are using cottonseed hulls now for LCM and mixing a heavy "pill" of mud every time we pull the drill string. Although we are still losing some mud, it seems to be a workable arrangement. We are now at a depth of 8260' (2517 m).