FAQs

ClearWELL™ is a non-intrusive surface mounted technology which transmits a radio frequency signal into to the wellbore. The signal is introduced into the well using a connector attached at the wellhead. Well intervention is not required for installation and production can continue uninterrupted.

ClearWELL™ units operate continuously and require connection to an electrical power source of 10W, 110 - 240 V_AC or 24 V_DC.

ClearWELL™ introduces a continuous alternating electromagnetic pulse into the metallic casing and tubing. The electromagnetic field travels along the wellbore and returns through a dedicated return path. The placement of ClearWELL™ requires consideration of the return path and its compatibility with the load.

ClearWELL™ prevents the deposition of common oilfield inorganic mineral scales such as Calcium Carbonate (CaCO₃), Barium Sulphate (BaSO₄), Calcium Sulphate (CaSO₄), Strontium Sulphate (SrSO₄), and Sodium Chloride (NaCl).

ClearWELL™ has been successful for most types of wells, such as oil wells, gas wells, onshore wells, offshore wells with dry trees, naturally flowing wells and HPHT wells. Artificially lifted wells, for example water injection wells, gas injection wells and ESP wells, etc., are ideal candidates.

ClearWELL™ also protects surface processing facilities, pipelines, flowlines and connected equipment suffering from water formed scales.

There is no interference with the communication systems used at offshore/onshore facilities from the signal generated by the ClearWELL™ device.

The ClearWELL™ signal is corrosion neutral. The AC signal neither promotes nor impedes electrochemical corrosion.

The ClearWELL™ technology is patented and it is the only oilfield scale control solution of its kind.

Yes, ClearWELL™ is being used on variety of wells all over the world and based on its success in the field it is fast becoming the number one choice by operators. It has a 20+ year track record and early development included extensive field testing. Related academic studies include:

• SPE-170898 Preventing scale deposition downhole using high frequency electromagnetic AC signals from surface to enhance production offshore Denmark.
• SPE-169415-MS An environmentally friendly method to control halite scale deposition: Proved case histories from Latin America.
• SPE-133526-PP Physical water treatment in the oilfield.
• SPE-114072 Two-year results of a breakthrough physical water treating system for the control of scale in oilfield applications.

ClearWELL™ units are available for use in hazardous areas (zones 1 and 2) with full ATEX/IECEx certification. We also offer ClearWELL™ that are listed by CSA Group as certified/verified for use in the United States and Canada.