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Any machine-aided operation carried out in a 
cased-hole well that affects:

Well productionWell completionWell trajectoryWell-reservoir contactCased-Hole Data Acquisition



Well interventions can be classified by the facilitating machinery:

Bullhead Pumping

Wireline OperationsCoil Tubing (CT) OperationsSwabbingWorkover

Chemical stimulation

Chemical shut-off

Slick Line (SL)Electric Wireline (EWL) Wellbore Tractor


Borehole cleaning

e-Coil logging





See Also


Petroleum Industry / Upstream /  Production / Subsurface Production / Well & Reservoir Management

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