Unieh Supplier and Manufacturer

UNIEH

UNIEH wetting agent is a specialized surfactant to preferentially oil‐wet solids in the Universal* oil‐base systems. UNI additive complements the system’s normal wetting agents to assist in preventing water‐wetting of solids. In certain situations, UNIEH additive has the ability to reverse water‐wetting of solids that might occur. UNIEH wetting agent is a powerful additive, and provides superior performance when needed. 

CHARACTERISTICS AND PROPERTY

Physical appearance..................................................................Brown liquid
Specific gravity...........................................................................................1.1
pH.................................................................................4.5 – 5.0 (10% water)
Flash point............................................................................167°F (75°C)

APPLICATIONS

UNIEH wetting agent can be added to reverse a water‐wet solids problem, allowing the surface area of the solids to return to an oil‐wet environment. UNIEH will prevent water wetting of all weight material. 
UNIEH wetting agent may be added to a drilling fluid as a pretreatment before displacement or cementing jobs are initiated toeliminate any occurrence of water‐wetting or used to condition a fluid that has encountered a water‐wet problem. In general, for pretreatment, concentrations of 1 lb/bbl (2.8 kg/m3) are suggested, however if a large amount of open hole is exposed, larger treatments should be considered, but should be limited to no more than 2 lb/bbl (5.6 kg/m3).
Recommended treatment levels for water‐wet solids contamination, such as water flows, and CO2 intrusions, are from 1 to 2 lb/bbl (2.8 to 5.7 kg/m3). Begin treatment as soon as wetting characteristics are observed (graininess, barite settling or flocculation, etc.).

UNI EH wetting agent will assist in preventing sag from water‐wet weight material. During all treatments, normal concentrations of emulsifiers and other additives should be maintained.In all situations, pilot testing should be done before adding UNI EH wetting agent to insure that over‐treatment is avoided.

ADVANTAGES

Prevents water‐wet solids
Reverses water‐wetting of solids

LIMITATIONS

Over‐treatment may cause low rheology

TOXICITY AND HANDLING


Bioassay information is available upon request. Handle as an industrial chemical, wearing protective equipment and observing the precautions as described in the Material Safety Data Sheet (MSDS)

PACKING AND STORAGES

UNI EH wetting agent is packaged in 5‐gal (18.9‐L) cans and 55‐gal (208‐L) drums. Store in a dry location away from sources of heat or ignition, and minimize dust.

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