Wax and wax-hydrated accumulations prevention in oil wells and pipelines - NAPHTATECH DMCC

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Wax and wax-hydrated accumulations prevention in oil wells and pipelines

While developing oilfields with high viscosity and waxy oils, the following issues come to the front:
1. Formation oil flow
2. Tubing flow capacity decrease due to wax accumulation
3. Pipeline flow capacity decrease due to wax accumulation
Asphaltene accumulation, wax crystallization and gas-hydrate internal pipeline and tubing surface are the most sore problems of oilfields both as at an oil production and transportation.
A plenty of various methods (mechanical, chemical, thermal), are being used for struggling against accumulation of wax in the tubing of oil-producing wells, allowing to support an average level of an oil production successfully enough. But in the majority cases being periodic, such methods do not achieve the primary goal – the prevention of wax and gas-hydrate.


The exact given problem is solved by means of stationary Wells Electric Unit Heater, actually an electro cable heating unit and its modifications intended, first of all, for prevention wax and gas-hydrate accumulation by such a method which allows to warm up the internal space of the tubing and to maintain fluid temperature above of wax and hydrate drop point.(Operating principle is to heat tubing inside space with a purpose heating cable located in the area of intensive wax accumulation.)
Company executes design, sale and after sales cervices of the Wells Electrical Unit Heater (WEUH)

WEUH is wore effective remedy for wax and wax-hydrated accumulations in oil wells and pipelines.
Equipment advantages: 
  • Permanent cleanness of tubing inside volume, X-mass tree and adjacent flow lines;
  • Increase of capacity and overhaul life of ESP;
  • Operating continuity for a well and flow lines;
  • Exclusion of necessity for other de-waxing operations;
  • Environmental safety around a well;
  • Easy well operation;
  • Oil losses decrease and increase in well utilization rate;
  • Continuous well operation in remote areas and wells producing high viscosity oil.  

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