High Temperature Retarder for Oil Well Cement CMT-104

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High Temperature Retarder for Oil Well Cement CMT-104

CMT-104 can stick on the surfaces of cement hydrate to inhibit contacting between cement and water, also stick on the surfaces of crystal nucleons to prevent their enlarging. So it can retard hydrating of cement slurry


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Product Description

CMT-104 can stick on the surfaces of cement hydrate to inhibit contacting between cement and water, also stick on the surfaces of crystal nucleons to prevent their enlarging. So it can retard hydrating of cement slurry


Technical & Engineering Information

CMT-104 consists of various kinds of compounds, such as gluconate and low molecular weight organic acids.

Non-poisonous, non-odor, and non-corrosivity.

It can reduce the consistency of cement slurry and improve the rheology.

Retard the thickening time efficiently.

Generally used in oil wells whose circulate temperature under bore is between 110℃and 160℃.


Technical Indicators

Item

Indicator

Solid

Liquid

Appearance

powder

Colorless liquid

Thickening time

Adjustable

Initial consistrency, Bc/120,73.9MPa,61min

30

Mutation value of thickening curve,Bc

10

Transition time,min

40

Free liquid,%

1.4

Compression strength,  Mpa/144℃,21Mpa,48h

14

The ingredient of cement slurry in the table is: JiaHua G class: cement 594g + silica sand 208g (160~200mesh) +G301: 1.0%(BWOS)+ distilled water 333g+CMT-104: 1.0~2.5%(BWOS) .


Recommended Treatment

Normal dosage: 0.5% ~2.0% (BWOS). The amount can be appropriately increasea with the increase of temperature


Packing and Storage

CMT-104 is supplied in plastic-lined bags with net weight of 25 kg/bag. Keep it away from extreme conditions such as places wet and humid or direct sunlight.

Shelf life: 2 years.


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