[ASK QUESTION]_PI Each Sand
Moderator: moderators
[ASK QUESTION]_PI Each Sand
Guys,
Any body can help me to find references or any suggestions about " splitting each PI from commingle sand produce."
We have several wells that right now still producing from 2 different layer/sand through one string/tubing. Unfortunately, till now, we never run Production Logging Tools, so we can not determine each sand real PI.
Share your idea, comments or suggestion, please !
-MuchiniKu-
Any body can help me to find references or any suggestions about " splitting each PI from commingle sand produce."
We have several wells that right now still producing from 2 different layer/sand through one string/tubing. Unfortunately, till now, we never run Production Logging Tools, so we can not determine each sand real PI.
Share your idea, comments or suggestion, please !
-MuchiniKu-
- Abdelkader
- Junior member
- Posts: 72
- Joined: Thu Aug 31, 2006 7:33 am
- Location: algiers
Well, if the commingled sands were independently tested prior to being placed on production, then just run a transient test, and model the multi-layer response with differing pi's, and see if you get a suitable match. Use that to generate layer-wise IPR's.
Another way, which is slightly obtuse, but far, far cheaper than mobilizing a PLT crew, is to record flowing pressure/temperature surveys at different chokes. Especially where there is a large enough difference in flow capacities of the commingled formations, you would note that on the gradient survey at one choke, one or more of the formations show negligible contribution. hey presto, that's the reasonably accurate SBHP of those sands. Cross-check the rate, allocate, do IPR, choke back, repeat procedure.....!
Helpful?
Another way, which is slightly obtuse, but far, far cheaper than mobilizing a PLT crew, is to record flowing pressure/temperature surveys at different chokes. Especially where there is a large enough difference in flow capacities of the commingled formations, you would note that on the gradient survey at one choke, one or more of the formations show negligible contribution. hey presto, that's the reasonably accurate SBHP of those sands. Cross-check the rate, allocate, do IPR, choke back, repeat procedure.....!
Helpful?