Circulating & Reaming

Replies to This Discussion

Permalink Reply by Marek on January 4, 2012 at 10:03am

Reaming is done with a rotary

• ▶ Reply

Permalink Reply by Dalbin T Vempeni on January 4, 2012 at 11:40am

hi Mark thks 4 u r reply
that means during reaming rotary is rotating and during circulation rotary is stationary.

• ▶ Reply

Permalink Reply by faisal mohd sultan al najdi on March 18, 2012 at 3:48am

Rotary doesnt have to be stationary at all times though :) 

• ▶ Reply

Permalink Reply by Jeff Stoner on April 26, 2012 at 4:40am

Reaming is performed by rotating the pipe in open hole while pumping through it to carry any cuttings up the wellbore. Reaming a well is done in some tight hole situations, when there may be a lot fill in the bottom of a well etc. Circulating is basically just just pumping through the drillstring while rotating but not really moving the pipe up and down a whole lot. You should still work the pipe every few minutes but not like you do while reaming. Circulating is basically done while pumping a sweep and waiting for it to come back or if your drill string is going to be in the hole while note drilling for any length of time. i.e. waiting on cement trucks, tools, etc. Anytime you have any kind of pipe in the hole stationary, you should be circulating whatever fluid you are currently using to keep the ECD's where they need to be that can stabilize the welbore so it will not come back and grab your pipe. Hope this helps explain it a little better.

• ▶ Reply