FIELD: mining industry.
SUBSTANCE: method includes forming depression pressure change between well-adjacent bed zone and hollow of well by negative pressure wave and forming periodical pressure impulses in well-adjacent bed zone in form of fading standing wave moving along well hollow. For this, cylinders coaxial to compressed gas inlet branch pipe are used, also having side outlet and interconnected pistons. Also used is low pressure cylinder forming a hydraulic multiplier, mounted above high-pressure cylinder mounted above well latch. Negative pressure wave is formed by discharging well fluid above the surface due to feeding compressed gas through branch pipe of its inlet into low pressure cylinder at pressure, less for value of relation of square cylinder diameters.
EFFECT: higher efficiency.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR TREATMENT OF WELL-ADJACENT BED ZONE | 2003 |
|
RU2243368C1 |
| METHOD OF WELL TREATMENT IN FORMATION | 2002 |
|
RU2217584C1 |
| WELL BORE ZONE TREATMENT METHOD | 2004 |
|
RU2276722C1 |
| METHOD FOR WELL-ADJACENT LAYER AREA TREATMENT | 2002 |
|
RU2225505C1 |
| METHOD FOR PULSED WELL BOTTOM ZONE TREATMENT | 2006 |
|
RU2310059C1 |
| WELL BORE ZONE TREATMENT METHOD | 2004 |
|
RU2276721C1 |
| METHOD FOR PROCESSING WELL-ADJACENT BED ZONE | 2003 |
|
RU2255214C1 |
| METHOD FOR WELL BORE ZONE TREATMENT | 2004 |
|
RU2281390C1 |
| METHOD OF TREATMENT OF BOTTOMHOLE ZONE OF BED | 2007 |
|
RU2330953C1 |
| PROCESS OF TREATMENT OF CRITICAL AREA OF FORMATION | 2002 |
|
RU2219334C2 |
