Patented technology. Proven world-wide.
ClearWELL™ is a surface-mounted scale control technology which transmits radio frequency electromagnetic signals within downhole and surface system tubing.
It is highly effective in inhibiting mineral scale adhesion and ensures long and productive equipment life. The technology protects all types of downhole and surface equipment such as tubulars, pumps, valves and screens.
ClearWELL™ is a low cost, low risk, green alternative to remedial well intervention and the use of injected chemical scale inhibitors.
How does ClearWell™ add value?
- Continuous life-time protection.
- Reduces or eliminates repetitive scale remediation operations such as mechanical intervention, chemical injection and acid washes, plus associated production downtime over the lifetime of the asset.
- Protects the system from a range of mineral scale adhesion such as calcium carbonate, barium sulphate, calcium sulphate, strontium sulphate and halite.
- Protects all wet tubing and internal equipment including tubulars, valves, pumps, screens etc.
- Green technology with low electrical power consumption.
- Lowers the carbon footprint and HSE risk by reducing remediation activity, transportation of personnel, equipment and bulk chemicals.
- Ideal for remote locations.
- Small site footprint.
- No well intervention or production loss during surface installation.
- Saves costly retrieval and replacement of failed equipment.
- Provides an alternative solution to the use of injected chemical inhibitors.
- Performance can be monitored remotely via a satellite link.
- Is high quality, durable and robust, designed and manufactured under ISO 9001 certified systems. It is supplied as a certified Class 1, Zone 1 model as standard, and available for use in hazardous areas (zone 1 and 2) with full ATEX/IECEx certification.
How does scale form?
Scale formation occurs when dissolved solids that are present in water become supersaturated. When a solution becomes supersaturated nucleation will begin to occur. Heterogenous nucleation is the most common form of nucleation as it requires a low amount of energy and can occur at lower saturation levels. Secondary nucleation, adherence and growth then occurs as a result of the scale crystals that are already present.
FAQs
How is ClearWELL™ connected?
+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.
How does ClearWELL™ treat the wellbore from the surface?
+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.
Does ClearWELL™ prevent all types of scaling?
+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).
What type of wells and facilities are best suited to ClearWELL™?
+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.
Oil & Gas Applications
ClearWELL™ technology provides continuous protection from scale in all types of oil and gas wells, both onshore and offshore, and in surface pipelines and processing facilities. The technology is well proven across multiple well types, depths and locations and will also protect costly internal equipment exposed to the wet environment such as pumps and valves.
Our extensive track record provides evidence of reliability, efficiency and value and our business continues to grow in both the oil and gas and renewable energy sectors.
Geothermal Applications
ClearWELL™ technology protects geothermal systems from scale problems and keeps them operating at maximum efficiency. The technology can be used in all types of water and steam circulating systems including geothermal power systems, ground source heating and district heating schemes. ClearWELL™ will also protect costly internal equipment exposed to the wet environment such as pumps and valves.
Our extensive track record provides evidence of reliability, efficiency and value and our business continues to grow in both the oil and gas and renewable energy sectors.
