Hole cleaning in UBD

Hi everybody,

I need your observation and explanation with some resulting i have got in UBD flow modeling by using WellFlo Software.

I found that the CTR % decrease while decrease rate of penetration ROP ft/hr. Also found that CTR increasing while gas injection rate increase with constant flow rate?

So could you please help me with these issues?

I read through many papers but still confusing.

My case:

Gasified mud (water based mud + Air)

Shallow depth (20 m to 850 m)

Hole size 171/2

0 Answer(s)

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