Medium high temperature early strength agent for oil well cement
An oil well cement, medium and high temperature technology, applied in the field of oil well cement early strength agent, can solve the problems of obvious thickening time, low applicable temperature, long production time, etc., to reduce API water loss, improve early strength, and high production efficiency Effect
Active Publication Date: 2012-07-04
成都欧美克石油科技股份有限公司
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The invention discloses a medium high temperature early strength agent for oil well cement. The medium high temperature early strength agent for the oil well cement comprises the following components in part by weight: 1.2 to 2.8 parts of sodium thiosulfate, 0.2 to 2 parts of basic aluminum chloride, 0.2 to 0.6 part of sodium nitrate, 0.2 to 1 part of microsilicon and 0 to 0.2 part of calcium aluminate. The medium high temperature early strength agent for the oil well cement has the beneficial effects that: the early strength of cement stone can be improved obviously at high temperature on the premise of not influencing the thickening time; the problem that the early strength of the cement stone is developed slowly at medium high temperature is solved; the medium high temperature early strength agent has high compatibility with other additives; and at medium temperature, water loss of cement paste can be controlled, the adding amount of a fluid loss agent is reduced, and the cost is saved.
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Property | Measurement | Unit |
Compressive strength | 16.78 | mPa |
Compressive strength | 13.792 | mPa |
Compressive strength | 2.4 | mPa |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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