Does ClearWELL™ prevent all type of scaling?

ClearWELL™ delays the deposition of common oilfield mineral scales, including Calcite/CaCO3, Calcium sulfate/CaSO4, Strontium sulfate/SrSO4, Barium sulfate/BaSO4, Silicon dioxide/SiO2, Magnesium carbonate/MgCO3. and Sodium chloride/NaCl.  ClearWELL™ does not impact the formation of ferrous sulfide/FeS, paraffin and asphaltenes.

How is ClearWELL™ connected?

ClearWELL™ units require a continuous power source (110 - 240 VAC or 24 VDC). If a power source is not present on site, ClearWELL Oilfield Solutions can provide units equipped with solar panels. 

ClearWELL™ systems transmit the signal via an armored cable attached to the pipework by a small electrical connection box. 

How does ClearWELL treat the wellbore from the well surface?

ClearWELL™ units emit a train of pulses. Each pulse consist of a decaying exponential waveform with a base frequency of 120 kHz. The well tubing and casing represent an open circuit, and the ground serves as the return path to complete the circuit. Placement of ClearWELL™ units requires consideration of the return path and its compatibility with the load.

What is ClearWELL’s effect on corrosion?

The ClearWELL™ signal is corrosion neutral: the AC (bipolar) signal neither promotes nor impedes electrochemical corrosion. 

Does ClearWELL interfere with cathodic protection or other electronics?

Cathodic protection systems are normally electrically isolated, and a ClearWELL™ system requires high frequency filters so that the ClearWELL™ signal can freely propagate while maintaining the DC electrical isolation needed for the cathodic protection program. 

Properly shielded electronic systems, such as transducers and measurement systems, should be unaffected by the ClearWELL™ signal. The low frequencies employed in the ClearWELL™ system (VLF communication frequencies) are not normally used in civilian communication equipment. We expect no interference with wireless communication links in the data collection system.