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WLD - Well Leak Detector

WSD - Well Sand Detector

WAF - Well Annular Flow

WFP - Well Flow Profile

Cased-Hole Logging Products – Well Integrity

WFP-Well Flow Profile

The Well Flow Profile (WFP), a cased-hole logging tool developed by TecWel, can provide detailed information about the inflow profile from completed reservoir zones. The WFP can be run in all types of completions, and the tool will identify the intervals that are contributing to the production and the relative velocity of the fluids entering the well bore at different depths. During shut-in passes the WFP can identify cross-flow. The WFP cannot quantify the velocity or the production rate in a well, but it does provide a relative velocity profile between the different producing / injecting intervals in the well.

Specifications for using the tool:

The WFP can be run as a stand-alone service, but the tool can also be run in combination with other production logging tools like spinners, pressure and temperature gauges etc, provided the tools are using the same telemetry system. It is required to log with a line speed from 3 to10 m/min (10 to 30 ft/min).

The standard WFP Tool String is configured like this:

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The WFP Technical Specification:

(Download the Technical Specification Sheet in PDF Format)

WFP Information  

Digital Signal processing (DSP)

 

Real time measurement

 

Sensitive ultrasonic passive sensors

 

Elastomer coating on housing

 
Producing fluids Oil, water, gas and multiphase
   
WFP Requirements  
Active flow in the producing interval ii  
Required voltage 18 V ± 5 V
   
WFP Specification  
Depth accuracy ± 0.3 metre (1 ft)
Repeatability 1 %
   
Deployment  

Electric line (mono conductor)

 

Well tractor

 

Coiled tubing

 
Telemetry Sondex Ultrawire telemetry
Depth correlation CCL (GR is an option)
Maximum line speed while logging 3 m/min. (10 ft/min)
   
Tool String Data  
Maximum tool OD 2” (50.8 mm) incl. elastomer coating
Length 2.05 ft (625 mm)
Weight 9.3 lb (4.2 kg)
Pressure rating 15,000 psi (1034 bar)
Temperature rating 302 °F (150 °C)
  (Higher temperatures on request)
Material quality H2S & CO2 resistant

ii Is an indication of fluid migration outside tubing caused by poor well integrity.

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