clean a little pipe down the annulus to the bit and jet the settled sand back again into suspension. When the annulus is just too smaller to move a jet pipe, a Element of the drill string could be lost.
The Borewell https://www.youtube.com/watch?v=auz8lCcwijQ
Details, Fiction and piezometer observation well
Internet 44 days ago jaspergchl636747Web Directory Categories
Web Directory Search
New Site Listings