FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil and gas industry, in particular, to methods for cleaning of borehole equipped with plug-in pump. Method comprises lowering to the well of a tubing string with a shank and a plug support of a plug-in pump installed above the shank, lowering into the tubing string on pump rods with an anchor mandrel made with possibility of tight interaction with the lock support, lifting of the plug-in pump before opening of the lock support and subsequent flushing of the shank and the well. Bottom of the shank is located in the well at the level providing the most effective cleaning of formation interval during washing. Column of tubing string before lowering above lock support is equipped with expansion with inner diameter, providing sufficient cross-section area with located inside pump for flushing well. Before flushing, plug-in pump is lifted to location in expansion of tubing string.
EFFECT: reduced time expenditures.
1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS OF PRODUCTION MAINTENANCE OF PRODUCING WELL AND INSERT PUMP FOR ITS REALIZATION | 2001 |
|
RU2190756C1 |
| METHOD FOR OPERATING AND REPAIRING A WELL EQUIPPED WITH A DOWNHOLE ROD PUMPING UNIT IN CONDITIONS COMPLICATED BY A DECREASE IN THE PRODUCTIVITY OF THE BOTTOMHOLE FORMATION ZONE | 2022 |
|
RU2787502C1 |
| PROCESS OF OPENING OF PRODUCTIVE POOL | 2000 |
|
RU2175713C1 |
| METHOD FOR TREATMENT OF FACE-ADJACENT WELL ZONE | 2003 |
|
RU2237805C1 |
| FLUSHING OF FILTER MOUNTED AT BOREHOLE PUMP INLET | 2013 |
|
RU2531702C1 |
| METHOD FOR CONSTRUCTION OF WELL FOR MULTIBED OIL DEPOSIT | 2003 |
|
RU2235854C1 |
| METHOD OF TUBING PRESSURE TESTING IN HOLE | 0 |
|
SU1684466A1 |
| METHOD FOR DETERMINATION OF TIGHTNESS OF DOWNHOLE EQUIPMENT FOR SIMULTANEOUS SEPARATE OPERATION | 2019 |
|
RU2720727C1 |
| DOWNHOLE PUMPING UNIT FOR PIPELESS WELL OPERATION | 2022 |
|
RU2798647C1 |
| MANNER OF OIL WELL COMPLETION | 2001 |
|
RU2200230C2 |
