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[ Production Logging ]

Сased-hole logging tool assessing the borehole production or injection flow profile: the amount of fluid going out to the reservoir or in the borehole via each perforation zone or tuning/casing leaks.

The corresponding logging service is called PLT survey.

The tool includes multiple sensors to assess the flow velocity and fluid type and correlate the tool location with OH logs (see table below).

Navigation tools
1	GR	Gamma Ray
2	CCL	Casing Colar Locator
3	INCL	Trajectory Deviation

Flow Rate Measuring & Flow Indicating tools
4	FBS	Full-Bore Spinner
5	CFS	Continuous Flow Spinner
6	ILS	In-Line Spinner
7	HEX	Thermal Anemometer
8	USF	Ultrasonic Flowmeter
9	SNL	Spectral Noise Logging Tool

Borehole fluid hold-up tools
10	TEMP	Fluid Temperature
11	PRES	Fluid Pressure
12	DENSG	Gamma-Gamma Fluid Density
13	DENSU	Ultrasonic Fluid Density
14	DIFP	Pressure gradient
15	COND	Fluid Conductivity
16	CAP	Fluid Capacitance
17	IRG	Infra-red Gas Hold-up

Borehole cross-section tool
18	XYC	XY Caliper

Conveyance tools
19	RC-3	3-arm Roller Centralizer
20	RC-4	4-arm Roller Centralizer
21	BSС	BowSpring Centralizer