CFF meaning in oil and gas
CFF means Caged Fullbore Flowmeter. The tool has a six arm, spring-loaded cage that centres the spinner in the middle of the flow and supports tool weight in deviated wells. A large diameter impeller measures flow rates…
Definition
Caged Fullbore Flowmeter
The tool has a six arm, spring-loaded cage that centres the spinner in the middle of the flow and supports tool weight in deviated wells. A large diameter impeller measures flow rates with coverage over a large cross section of the casing. The spinner runs on precision bearings and its rotation is sensed by zero drag Hall effect detectors, the signal from the sensors is converted into a flow rate measurement. The low mechanical threshold of the tool enables it to be used in low flow rates; normal output is 10 pulses per revolution with directional indication.