FIELD: deep well drilling. SUBSTANCE: method for cleaning wellbore includes running of drill string with rock breaking tool into well, continuous circulation of working drilling mud and periodic pumping through drill string and annulus of portion of additional drilling mud of other density. Novelty consists in determination of volume of additional drilling mud depending on maximum and minimum pressure of injection of working drilling mud presented in relation given in invention description. EFFECT: higher efficiency in cleaning of wellbore from cuttings. 5 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND DEVICE FOR FLUSHING GAS-SHOWING WELLS | 0 |
|
SU1677241A1 |
| VALVE FOR CASING STRINGS | 1990 |
|
RU2014439C1 |
| METHOD OF CEMENTING WELLS | 0 |
|
SU1240871A1 |
| METHOD OF TESTING BED WITH ANOMALOUSLY HIGH BED PRESSURE AND DEVICE THEREFOR | 0 |
|
SU1774990A3 |
| WELL DRILLING DEVICE | 1991 |
|
RU2047727C1 |
| METHOD FOR DETERMINATION OF OPEN BOREHOLE VOLUME | 0 |
|
SU1700221A1 |
| METHOD FOR FLUSHING OF INCLINED AND HORIZONTAL WELL | 1992 |
|
RU2026954C1 |
| PACKER DEVICE | 1991 |
|
RU2029065C1 |
| DEVICE FOR SUSPENDING HIDDEN CASING STRINGS | 0 |
|
SU1578316A1 |
| FORMATION TESTER | 0 |
|
SU1276806A1 |
