Drilling fluid additive composition and super high temperature super high density clay-free oil-in-water drilling fluid
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United States of America Patent
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Dec 27, 2016
Grant Date -
N/A
app pub date -
Apr 22, 2016
filing date -
Jan 28, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to the field of petrochemical drilling and discloses a drilling fluid additive composition. The composition contains an emulsifier and a rheological modifier. The emulsifier is one or more of the compounds represented by Formula (1); the rheological modifier is dimer acid-organic amine copolymer, comprising structural units from the dimer acid, structural units from the alkylamine and structural units from the arylamine. The present invention further provides a drilling fluid containing the foregoing composition. When a clay-free oil-in-water drilling fluid contains the drilling fluid additive composition of the present invention containing the emulsifier and rheological modifier, it may have high temperature resistance and high density;
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| CN | B | CN105647489 | Jan 28, 2016 |
International Classification(s)
- 2016 Application Filing Year
- C09K Class
- 3076 Applications Filed
- 2094 Patents Issued To-Date
- 68.08 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- C09K Class
- 21.01 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 27, 2028 |