US Patent No: 5,710,110
Number of patents in Portfolio can not be more than 2000
Oil well drilling fluids, oil well drilling fluid anti-settling and method of providing anti-setting properties to oil well drilling fluids
Stats
-
Jan 20, 1998
Issued date -
May 15, 1995
filing date -
08/440,961
serial no -
Expired
status
Importance
Loading Importance Indicators...
Abstract
An improved drilling fluid with enhanced anti-settling properties useful for all types of drilling systems is described. The invention includes a process for providing anti-settling properties to both oil and invert oil (i.e., water in oil emulsion) based fluids as well as the additive itself. The drilling fluid drilling mud invention contains at least one reaction product of which the reactants comprise an alkoxylated aliphatic amino compound and an organic polycarboxylic anhydride or acid and a rheologically active clay-based material.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,434,075 Anionically modified organophilic clays and their preparation | 101 | 1981 | |
| 4,434,076 Clay cation complexes and their use to increase viscosity of liquid organic systems | 54 | 1981 | |
| 5,034,444 Rheological additive for coating compositions | 20 | 1990 | |
|
|
|||
| 5,330,662 Compositions containing combinations of surfactants and derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same | 45 | 1992 | |
| 5,260,268 Methods of drilling well boreholes and compositions used therein | 40 | 1993 | |
|
|
|||
| 5,254,531 Oleophilic basic amine compounds as an additive for invert drilling muds | 53 | 1992 | |
|
|
|||
| 4,776,966 Fluid compositions | 20 | 1987 | |
|
|
|||
| 4,658,036 Invert emulsifiers for oil-base drilling muds | 21 | 1985 | |