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Gilsonite in cement industry

Gilsonite - application in cement industry

Precise designed cementing process is critical to keeping the wellbore isolated, protected and environmentally sound. For few years application of Gilsonite, was a critical component for primary cementing operations in some of the world toughest drilling environments in order to increase quality of cement. During cementing operations, density control, mud removal and compressive strength are critical to effectively cementing the casing, isolating hydrocarbon formations and preventing annular gas flow. Gilsonite helps maintain compressive strength—making it superior to hazardous additives such as coal or fly ash. Gilsonite Cementing Grade:

  • Scours the wellbore to remove mud additives and cuttings
  • Strengthens cementing bond to the formation and the casing
  • Reduces cement slurry weight due to its low specific gravity
  • Maintains compressive strength unlike coal or fly ash additives

 

More benefits of Gilsonite in concreete industry:

  • Increases yield
  • Reduces slurry weight
  • Controls free water
  • Lowers slurry water ratio
  • Prevents lost circulation
  • Scours wellbore/enhances mud removal
  • Maintains compressive strength, unlike coal or fly ash
  • Increases flexibility
  • Reduces cracking
  • Reduces permeability
  • Strengthens bond to the formation and the casing
  • Reduces environmental risk
  • Assures zonal isolation


As one of materials It is believed that these factures were once filled with a heavy, viscous crude oil that lost of its volatile constituents and then solidified. Much Gilsonite is used directly in its crude form, as insulation for pipelines, particularly hot pipes, as waterproofing and undercoating for wood and metal, and as paving, roofing and other uses identical with crude asphalt. Gilsonite is also blended with refinery produced asphalt and petroleum products to obtain certain desired characteristics. It is used in saturating felts and building construction papers.


This unique mineral is used in more than 160 products, primarily in dark-colored printing inks and paints, oil well drilling muds and cements, asphalt modifiers, foundry sands additives and a wide variety of chemical products. Gilsonite was a shiny, black substance similar in appearance to the mineral obsidian. It was brittle and can be easily crushed into a dark brown powder

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