relief well

relief well

[ri′lēf ‚wel]
(civil engineering)
A well that drains a pervious stratum, to relieve waterlogging at the surface.
(petroleum engineering)
A directional well which is drilled to intersect a well that is blowing out, and down which heavy drilling fluid is pumped to kill the blow-out well.
References in periodicals archive ?
Add Energy and Trendsetter Engineering have teamed up to develop the Relief Well Injection Spool (RWIS) Lite, designed to reduce the complexity of relief well operations on a global scale, when coupled with the original RWIS product.
The survey confirmed that no oil is leaking from the Macondo well, nor from the relief well that ultimately intercepted and permanently sealed it.
A relief well is drilled to intersect a well that has suffered a blowout and its construction is similar to an exploration well.
A relief well remains the ultimate solution to kill and permanently cement the well," said BP.
Even if we were to pump the cement from the top, we will still continue on with the relief well and confirm that the well is dead.
If another hurricane moves closer to the spill region, it would likely have all of these disruptive effects, as well halting the relief well drilling (with possible damage to equipment) and causing temporary abandonment of the siphoning operation currently in place.
BP said on Sunday that a rig that had been drilling a relief well to plug the Gulf of Mexico oil leak was back on site and reconnecting equipment to resume work.
What we didn't want to do is be in the middle of an operation and potentially put the relief well at some risk," Kent Wells, BP's vice-president, said.
25 pence at 1507 Dubai time, pushed ahead by the good news on the relief well front as well as by investment speculation.
Oil gushed from Ixtoc I until a relief well could be drilled.
The state news agency quoted unnamed experts as saying that to stifle the fire a relief well might need to be drilled next to the flaming well to suck off the oil and gas feeding the fire.
The relief well at the end of August is certainly the end point on this game," Robert Dudley, BP's managing director, said.