FIELD: oil-and-gas industry.
SUBSTANCE: proposed solution results from modification of carboxymethyl cellulose (CMC) in solvent by CMC suspension treatment with modifying agent. Reaction mass is held at heating to separate the product with the help of filter press and drying. CMC particles not over 200 mcm are suspended in chloroform. Modifying agent represents 1.1.5-tri-hydroperfluorine amyl sulphite as a solution in chloroform. Said processing is executed in the presence of dimethyl formamide at -10 - (-5)°C.
EFFECT: higher mudding properties.
3 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| REAGENT FOR TREATING HIGH-MINERALIZED DRILLING MUD | 2001 |
|
RU2213122C2 |
| PEAT ALKALINE DRILLING MUD FOR OPENING PRODUCING RESERVOIR | 2015 |
|
RU2602280C1 |
| DRILLING MUD | 0 |
|
SU973586A1 |
| FLUID FOR EXPOSING PRODUCTIVE STRATA | 2000 |
|
RU2200180C2 |
| METHOD FOR PREPARING CARBOXYMETHYLCELLULOSE SODIUM SALT | 2002 |
|
RU2223278C1 |
| 0 |
|
SU510499A1 | |
| WATER-SOLUBLE LOW-SUBSTITUTED HYDROXYETHYL CELLULOSE, DERIVATIVES THEREOF, PREPARATION METHOD THEREOF AND USE | 2006 |
|
RU2415160C2 |
| DRILLING MUD | 0 |
|
SU834090A1 |
| REAGENT FOR TREATING HIGHLY MINERALIZED MUD | 1994 |
|
RU2084487C1 |
| DRILLING MUD | 0 |
|
SU1063821A1 |
