GLYDRIL MC Medium-Cloud-Point Polyglycol | Schlumberger
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GLYDRIL MC

Medium-cloud-point polyglycol

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GLYDRIL MC medium-cloud-point polyglycol can provide improved wellbore stability, lubricity, high-temperature filtration control, plus reduce dilution rates and bit balling.

Applications

While polyglycols are most effective when used in conjunction with an inhibitive salt, such as KCl, in a nondispersed polymer system, they can be used as additives in most water-based systems. GLYDRIL MC polyglycol is acceptable for most applications specifying low-toxicity additives.

Advantages

  • Improved wellbore stability and shale inhibition
  • Improved lubricity
  • Improved high-temperature filtration control
  • Reduced dilution rates and mud consumption
  • Reduced bit balling potential
  • Low toxicity

GLYDRIL MC polyglycol stabilizes troublesome shales by plugging shale pores, preventing the equalization of hydrostatic pressure away from the wellbore.

Typical Physical Properties
Physical appearance
 Straw-yellow to opaque-brown liquid
Specific gravity
 1.012
Solubility in water
 Variable
Flash point (Pensky-Martens closed cup)
 230 degF [110 degC]
Cloud point
 >150 degF [66 degC]

GLYDRIL

Advanced polyglycol system

Apply in polyglycol systems with fresh- to medium-salinity makeup water and in low formation temperatures.
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Product Sheet GLYDRIL MC Medium-Cloud-Point Polyglycol

Improved wellbore stability, lubricity, and high-temperature filtration control with less dilution rates and bit balling.

Catalog Drilling Fluid Systems and Products

Drilling solutions.

Case Study GLYDRIL-IDCAP D System Successfully Drills Reservoir, Offshore Vietnam

Wells in the Rang Dong Field have produced a significant amount of sand during the last few years from a reservoir of interbedded sandsilt-shale.

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