FIELD: well operation. SUBSTANCE: oil-well slurry is pumped into well. Then a binary system in the form of fluid-and-gas mixture is pumped into well. After pumping fluid and gas into well, oil-well slurry is squeezed into formation. Then gas is bled off at wellhead with a prerequisite that well pressure obtained not exceed formation pressure. Then squeezing/bleeding-off cycle is repeated, the number of cycles n being chosen from relationship 2≅ n≅ 5. EFFECT: efficiency of well cementing increased due to improved completeness of filling lost-circulation formation pore channels.
| Title | Year | Author | Number |
|---|---|---|---|
| GEAR FOR TERMINATION OF BOREHOLES | 1989 |
|
RU2011803C1 |
| METHOD FOR ISOLATION OF LOST-CIRCULATION FORMATIONS | 0 |
|
SU1803529A1 |
| CASING STRING CENTRALIZER | 1992 |
|
RU2034128C1 |
| 0 |
|
SU1779741A1 | |
| DEVICE FOR PREPARATION AND TREATMENT OF SOLUTION | 1993 |
|
RU2077940C1 |
| MAGNETICALLY ELASTIC PICKUP FOR MEASURING MECHANICAL STRESSES | 1992 |
|
RU2050530C1 |
| DEVICE FOR TRANSPORTATION OF INSTRUMENTS IN HORIZONTAL, UPWARD AND INCLINED WELLS | 1992 |
|
RU2034140C1 |
| ACOUSTIC DEVICE | 1989 |
|
SU1637451A1 |
| PROCESS OF PREPARATION OF GROUTING MORTARS | 1992 |
|
RU2007546C1 |
| BOREHOLE PUNCHER | 1990 |
|
RU2007549C1 |
