High Temperature / High Pressure Down-Hole Silicone Fluids

Chemical Name: DPDM-400: Diphenyl-Dimethylsiloxane (CAS No. 68083-14-7) , PM-125: Phenylmethylsiloxane (CAS No. 63148-52-7)

Clearco Down-Hole Silicone Fluids possess the thermal/pressure/viscosity and density properties that are critical in the ever harsher environments in the Down-Hole oil and gas exploration industries. They are widely used for the most extreme environments where high temps and high pressures are present.

With declining reserves and advances in technology, the oil and gas industry is drilling ever deeper. In these environments, fluids are required that can remain stable at the elevated temps > 200°C as well as the higher pressures.

The fluids in this section are divided by viscosity as well as by temperature.

Down-Hole Silicone Fluids can be used to dampen vibration and serve as a heat transfer / heat stable fluids in a wide range of Down-Hole pressure gauges, geo-steering instrumentation, transducers, cables, temperature and process recorders, control valves, calibration equipment, flow meters, thermostats.

Down-Hole Silicone Fluids are characterized by their their wide service temperature range, high resistance to oxidation, high damping action, excellent lubricity, compatibility with virtually all o-rings, little viscosity change at extreme temperatures, and high dielectric strength.

Down-Hole Silicone Fluids can be used in the most extreme environments where high rates of vibration, pulsation and pressure are encountered Unlike conventional petroleum based fluids like mineral oil, silicone fluids exhibit extremely high compressibility and will not coagulate. Even at pressures of 4,000 MPa, the fluids will not solidify. A properly selected silicone fluid can significantly extend the service life of equipment and provide more accurate reading in doing so.

DPDM-400 and PM-125 High Temperature Down-Hole Silicone Fluids provide even higher thermal stability and wider service temperature ranges than the PSF-Down-Hole Silicone Fluids

View product specs:PM-125DPDM-400

View MSDS:DPDM 400MSDS PM 125

Availability: 1 gallon (3.6kg), 5-gallon pail (18kg) & 55-gallon drum (200kg)

DPDM-400 High Temperature Down-Hole Silicone Fluid (25°C to 300°C)

PM-125 High Temperature Down-Hole Silicone Fluid (25°C to 300°C) atib

* all temperature ranges reflect a closed system.
* cSt is a measure of centistoke or mm2/sec.

Product Data:

Property DPDM-400 PM-125
Chemical family Silicone Silicone
Chemical name Diphenyl-Dimethylsiloxane Phenylmethylsiloxane
CAS # 68083-14-7 63148-52-7
Appearance clear, colorless fluid clear, colorless fluid
Odorless Yes Yes
Hydrophobic Yes Yes
Viscosity @ 25°C 400cSt 125cSt
V.T.C. 0.82 0.76
Pour point -30°C -51°C
Flash point 315°C 315°C
Vapor pressure @ 25°C 1mmHg 1mmHg
Thermal conductivity g/cal/cm/sec °C 0.00032 0.00035
Specific heat @ 25°C cal/g °C 0.35 1.498 kj/kg K
Thermal expansion cc/cc/°C 0.00073 0.00075
Service temperature 25°C to 300°C 25°C to 300°C

High Temperature / High Pressure Down-Hole Silicone Fluids are formulated for use as high temperature heat fluids for the harshest environments in the Down-Hole oil and gas exploration industries. They possess the highest thermal stability and highest density properties of all of the Silicone Fluids in our Down-Hole line. In comparision to the PSF- Fluids, they will experience the least compressibility under pressure.

DPDM-400 and PM-125 High Temperature Down-Hole Silicone Fluids replace conventional methyl groups with Diphenyl / Phenyl groups. In doing so, thermal stability and resistance to oxidation are significantly reduced. They will remain stable up to 300°C in a closed system (closed to air).

High Temperature Down-Hole Silicone Fluids have Thermal Conductivity values between 0.00032 to 0.00035 g/cal/cm/sec °C. The Specific Heat values are 0.35 cal/g °C for the DPDM-400 Heat Transfer Fluid. The Specific Heat value for the PM-125 is 1.418 kJ/kg K @ 0°C.

High Temperature Down-Hole Silicone Fluids are characterized by their high flash points, high thermal stability, high resistance to oxidation, stability under extreme pressure, long service-life, high dielectric strength, and high V.T.C. (Viscosity-to-temperature coefficient).

Unlike conventional petroleum based fluids like mineral oil, Down-Hole Silicone Fluids exhibits extremely high compressibility and will not coagulate under pressure. The lower the viscosity, the higher the compressibility will be. Silicone Down-Hole Fluids will not solidify even at high pressures of 4,000 MPa

In comparison to the PSF-Down-Hole Fluids the viscosity of the High Temperature Silicone Down-Hole Fluids will lower very quickly as soon as they are heated. This makes them excellent choices for systems that need to pump the fluid at high temperatures. Under heat, the High Temperature Silicone Heat Transfer Fluids will easily circulate and provide a consistent temperature. Please note, if a low viscosity is needed, we do not recommended them for low temp applications as their viscosity will increase very rapidly.

Properties

  • Clear, colorless, odorless fluids & inert fluids
  • Long service life @ recommended service temperatures
  • Low viscosity at high temperatures: will not put strain on pumps
  • High Flash points  High Thermal Stability
  • Thermal conductivity: 0.00032 to 0.00035 g/cal/cm/sec °C
  • Low vapor pressure  High Resistance to oxidation
  • Formulated from 100% synthetic sources.
  • Long service life when used for recommended temperature ranges.
  • Inert to virtually all bath instrumentation and plastics
  • Environmentally friendly: VOC Exempt & HAP Free
  • Hydrophobic- will not absorb water