Clearwell Electromagnetic Scale Prevention Tool

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Non-intrusive retrofittable electromagnetic scale control technology for oil and gas wells

Page last modified
February 22 2024

ClearWELL is a method of scale control that requires no well intervention. A signal generation unit is connected to the flowline close to the wellhead, without any impact to well integrity. Radio frequency pulses are injected along the flowline and production tubing, inducing an oscillating electromagnetic field in the wellbore.

Pros & Limitations
Chemical-free scale prevention control
Environmental friendly
Zero CAPEX & reduced OPEX
Easy and nonintrusive installation
Improves operational efficiency
Improves operational safety
24/7 Remote monitoring
Works on common water based scales only, i.e. Calcium Carbonate, Calcium Sulphate, Barium Sulphate, Strontium Sulphate and Halite
Specification Title Specification Description
Asset Life Extension
Flow assurance technology, which prevents scale buildup and hence enhance the well productivity.
Zero CAPEX, Lower OPEX and hence Higher Return of Investment. Reduces direct and indirect man-hours and associated cost.
Safe Operating
The techology’s Nonintrusive and Zero Well intervention nature, makes it extremely safe to install and operate.
It is a Chemical Free and environment friendly solution. No need to worry about spillage and disposal.
Implementation time
Quick installation, approx. 1-2 days for onshore and 2-3 days for offshore well.
The technology enhances asset integrity by reducing well intervention, production downtime, associated HSE risks and costs.
The device can be used to prevent scale at Downhole, Pipelines & Process Facilities in onshore and offshore locaitons with Naturally Flowing, Water Injectors or Disposals and Artificial Lifted Wells.
ATEX Certified
The device is EX II 2G IIB T4 Gb IP66 certified.


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Technology Readiness Level


Development Technology demonstration Mature / Proven
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Resulting EMF induces mineral crystals to form and prevents them from sticking to the pipe wall, which discourages scale formation. Suspended crystals are flushed from the well with the fluid flow. It is highly effective in inhibiting the formation of mineral scale in oil and gas wells or in surface processing equipment.

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