O.K., I asked for that. What I really was wondering is, whether most oil wells are that much of a "closed system", without "cracks" and passages wandering off in all directions that would make it impractical to pull a serious vacuum?
Some days you can pull a large vacuum. Some days, you can't. Most days you can.
/johnny
-3 psi would pull this house to the ground. With malice aforethought. Here and now sux, but not that badly.
/johnny (happily single for several years)