Glycol MC(Medium Cloud Point Glycol)

Introduction

Glycol MC is used in conjunction with an encapsulating polymer (PHPH) and brine phase KCI. It can meet various drilling challenges and is ideal for use in high-angle drilling, extended rich drilling, deep and sub salt applications. Medium cloud point Glycol is used in medium to high salinity Polyglycol systems.

Glycol MC has application in polyglycol systems in fresh to medium or high salinity makeup water and can be used in wells with a moderate form of temperature. When used properly, this medium cloud point additive helps to stabilize troublesome shales by plugging shale pores, preventing the equalization of hydrostatic pressure away from the wellbore

Polyglycol systems are generally low to medium-density, non-dispersed polymer systems utilizing an Electrolyte to active the cloud point polyglycol. They have applications where troublesome water sensitive shales are to be drilled, and can be used instead of oil base systems for certain applications.

Glycol MC Polyglycol can be used in thermally activated mud emulsion applications (near the cloud point) or in situations where it is insoluble (above the cloud point)

Advantages

It is effective and environmentally safe
It provides higher efficiency than conventional polymers and water-based fluids
It reduces torque and drag
It is effective for wellbore stability
Improved wellbore stability and shale inhibition
Improved lubricity
Improved high-temperature filtration control
Reduced dilution rates and mud consumption
Reduced bit balling potential
Non-toxicity
Wide molecular weight range covers a wide temperature range
Environmentally responsive
Compatible with most salts
Compatible with all water-based systems and can be combined with other glycols

Packaging and Storage

Glycol MC Store in a dry, well-ventilated area. Keep the container closed. Keep away from heat, sparks, and flames. Store away from incompatibles. Follow safe warehousing practices regarding palletizing banding, shrink-wrapping, and/or stacking.

Glycol MC is packaged in 200 kg net weight. Polyethylene or steel drum.

Shelf Life

Glycol MC has a shelf life of at least one year from the date of manufacture when stored in the original sealed containers in a cool and dry place.

Safety and Handling

Glycol MC must be handled as an Industrial chemical, wearing protective equipment and observing the precautions as mentioned in the MSDS.

Cloud Point: The temperature at which a solution of a surfactant or glycol starts to form micelles (molecular ag- glomerates), thus becoming cloudy. This behavior is cloudy. This behavior is characteristic of nonionic surfactants, which are often soluble at low temperatures but “cloud out “at some point as the temperature is raised. Glycols demonstrating this behavior are known as “cloud-point glycols” and are used as shale inhibitors. The cloud point is affected by salinity, being generally lower in more saline fluids.

The purported mechanism is that the glycol clouds out at higher down hole temperatures, coating the surface of clays and preventing hydration.

Cloud Point glycol exhibits clouding behavior when used in salt solutions. Clouding behavior results from changes in water or brine solubility of the glycol with temperature. Cloud formation is dependent upon salt concentration and concentration of the glycol itself, as well as temperature and pressure.

The cloud point glycol series covers a range of low, medium, and high cloud point temperatures suitable for brine salinities of seawater, to the most common 15 percent NaCl-based fluids to saturated salts.

Glycol MC is a medium cloud point additive designed for medium to high salinity polyglycol systems.

Glycol MC is a water-miscible medium cloud point glycol of low toxicity and a multifunctional additive for drilling fluids. It is used in water- based drilling fluids to improve lubricity and shale stability and extends the temperature stability and high-temperature filtration control. It can be used in most water-based mud systems. The company manufactures a range of high-performance polyglycerol-based shale stabilizers.

Glycol MC is medium-grade cloud point glycol. It is a free-flowing liquid, without dirt and other visible foreign suspended matter, and has a mild odor. It is primarily used in KCL and PHPA muds.

Glycol MC polyethylene glycol is a broad cloud point and wide molecular weight range additive designed for medium to low salinity polyglycol mud systems. It improves shale stability, lubricity, and high-temperature filtration control, while reducing dilution rates and bit balling. While polyglycols are most effective when used with an inhibitive salt in non-dispersed polymer systems, they can be used as additives in most water-based systems. This shale inhibitor intercalates and reduces the space between clay platelets so that water molecules will not penetrate and cause swelling.