FIELD: oil and gas production.
SUBSTANCE: drilling fluid appropriate for exposing formations with abnormally high formation pressure contains, wt %: 4.00-5.00% bentonite clay powder 4.00-5.00, carboxymethylcellulose 1.30-1.50, organosilicon liquid GKZh-10 1.00-1.20, celloton-F 1.00-1.10, nitrilotrimethylphosphonic acid 0.01-0.05, high-dispersity aerosil MAS-200 in diesel fuel 0.50-0.70, barite weighting material 63.00-70.00, and water 20,45-29.19.
EFFECT: preserved wall-plastering properties during exposure of producing formations.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| WEIGHTED INHIBITED DRILLING MUD | 2017 |
|
RU2655281C1 |
| 0 |
|
SU1776689A1 | |
| CLAYLESS DRILLING MUD | 2004 |
|
RU2277571C1 |
| DRILLING FLUID FOR FLUSHING OF LONG-DISTANCE STEEPLY INCLINED WELLS UNDER CONDITIONS OF PERMAFROST AND HIGHLY COLLOIDAL CLAY ROCKS, AND ITS APPLICATION METHOD | 2011 |
|
RU2483091C1 |
| DRILLING MUD | 2004 |
|
RU2277569C1 |
| DRILLING MUD | 1998 |
|
RU2153518C1 |
| SAND-CARRYING FLUID FOR HYDRAULIC FRACTURING OF FORMATION | 2011 |
|
RU2483094C2 |
| HIGHLY INHIBITED CLAY-FREE EMULSION DRILLING MUD | 2018 |
|
RU2698389C1 |
| INVERT EMULSION SOLUTION BASED ON MINERAL OIL FOR EXPOSURE OF PRODUCTIVE BEDS | 2013 |
|
RU2535723C1 |
| WEIGHTED DRILLING MUD ON HYDROCARBON BASE | 2019 |
|
RU2733622C1 |
