FIELD: oil industry.
SUBSTANCE: invention relates to oil industry and can be used for increasing oil recovery of production wells at repeated hydro-pulse action on formation. Device for cleaning filter zone of productive formation includes hydraulic cylinder with side holes, electric motor connected with reduction gear shaft, packers and cable lock. Hydraulic cylinder is perforated throughout its length. Reduction gear, elongated shaft with thread made throughout its length, is connected to piston. Packers are installed in upper and lower parts of hydraulic cylinder.
EFFECT: technical result is reduction of hydraulic connection of formation to well, and, as a result, increasing oil recovery of formations with high-viscosity and light oils, as well as continuation of operation of unprofitable wells into oil, natural gas, for fresh, mineral and thermal water.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| INSTALLATION FOR MUD-PULSE EFFECT ON BOTTOMHOLE FORMATION ZONE | 2013 |
|
RU2522195C1 |
| DEVICE FOR HYDROIMPULSIVE WELL BOTTOM ZONE TREATMENT | 2006 |
|
RU2320866C2 |
| DEVICE AND METHOD OF WELL HYDRODYNAMIC INVESTIGATIONS AND TESTS | 2001 |
|
RU2199009C2 |
| METHOD AND DEVICE FOR REAGENT AND IMPULSE WELL AND PRODUCTIVE BED TREATMENT | 2005 |
|
RU2275495C1 |
| UNIT FOR SIMULTANEOUS SEPARATE OIL PRODUCTION BY WELL WITH LATERAL INCLINED SHAFT | 2019 |
|
RU2702180C1 |
| DOWNHOLE EQUIPMENT FOR POLYFREQUENCY WAVE TREATMENT OF BOTTOM-HOLE ZONE OF PRODUCTIVE FORMATION AND FLOWRATE OSCILLATIONS GENERATOR FOR THAT | 2014 |
|
RU2574651C1 |
| DEVICE TO APPLY REPEATED HYDROIMPULSIVE ACTION TO BOTTOMHOLE FORMATION ZONE | 2004 |
|
RU2299306C2 |
| METHOD FOR DEVELOPMENT OF HIGH-VISCOSITY OIL RESERVES | 2010 |
|
RU2442883C1 |
| ELECTROMECHANICAL CORE TOOL | 2002 |
|
RU2209912C1 |
| DEVICE FOR CLEANING AND OPENING UP WELLS | 2002 |
|
RU2225937C1 |
