Caged Fullbore Flowmeter Mechanical Section (6 arm CFBM)

The Caged Fullbore Flowmeter is run at the bottom of a production logging tool string. The spinner blades and cage assembly collapse down to tool diameter, enabling it to pass through tubing restrictions without damage.

Description

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.

Features

• High deviation and horizontal well logging.

• Full bore injection and production flow profiling.

• Measurement of low flow rates.

• Leak and cross-flow detection.

• Interchangeable mechanical sections to match casing sizes from 4 1/2 - 9 5/8in.

• Combinable with other Ultrawire^TM PL tools.

• Connects to either a Spinner Electronics (CFBE) or a Capacitance/Temperature/Flow Tool (CTF).

• Modification kit available for connection to 1 3/8 in CTF.

Options

• Lockable spinner for high rate injection wells (standard feature for 9 5/8in tools).

• Solid impeller shafts for very high rate wells.

Ver B - Sept 2007