FIELD: oil and gas production.
SUBSTANCE: invention provides water-based solid phase-free biocationic drilling fluid with density 10-70-1520 kg/m3. Drilling fluid contains 10-60% of a cation spectrum, namely calcium and sodium chlorides, and 0.1-2% of polymer additive, in particular xanthane series biopolymer.
EFFECT: improved wall-plastering and lubrication properties.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| WATER-BASED HIGH-MINERALIZED WEIGHTED MUD | 2013 |
|
RU2530097C1 |
| BIOPOLYMER DRILLING MUD SBK-UNI-DRILL-PRO (HARD) | 2013 |
|
RU2561630C2 |
| BIOPOLYMER DRILLING MUD SBK-UNI (PLUS) | 2013 |
|
RU2561634C2 |
| POLYMER-BASED DRILLING MUD FOR WELL CONSTRUCTION | 2015 |
|
RU2601635C1 |
| BIOPOLYMER DRILLING AGENT | 2007 |
|
RU2351628C1 |
| CATION-INHIBITING DRILLING MUD (VARIANTS) | 2017 |
|
RU2661955C1 |
| WEIGHTED MINERALIZED CLAYLESS DRILLING MUD | 2017 |
|
RU2655276C1 |
| CLAYLESS DRILLING MUD BASICALLY DESIGNED FOR BORING HORIZONTAL HOLES (VERSIONS) | 2001 |
|
RU2186819C1 |
| CLAY-FREE DRILLING FLUID | 2004 |
|
RU2297435C2 |
| DRILLING AGENT | 2007 |
|
RU2344152C1 |
