FIELD: excision of pulses of pressure in certain points, cleaning of face zone of hole. SUBSTANCE: down- hole pulse source has two working chambers, two cylinders with differential pistons which are fixed in initial position by two ball locks. Intermediate chamber is connected to two cylinders. Motor is located in intermediate chamber. Ball locks release differential pistons in certain points of hole with the aid of two locking arms set in motion by motor with two output shafts linked to screws via clutches. Screws have different direction of thread. Down-hole pulse source also has two reflectors between which shock wave with negative pressure front is excited. EFFECT: enhanced efficiency of action on face zone of hole thanks to action of pulse on limited section of hole. 1 cl, 1 dwg
Title | Year | Author | Number |
---|---|---|---|
MULTI-PULSE SOURCE IMPACTING ON WALLS OF WELL FILLED WITH LIQUID | 2012 |
|
RU2511321C1 |
DOWN-HOLE PULSE SOURCE WITH DYNAMIC PARKER | 2000 |
|
RU2176093C1 |
DEVICE FOR WELL CLEANUP | 2007 |
|
RU2359107C1 |
BOREHOLE SOURCE OF SEISMIC PULSES | 2000 |
|
RU2166779C1 |
PULSE SOURCE FOR TREATING WALLS OF FLUID-FILLED WELLS | 1997 |
|
RU2133326C1 |
DOWNHOLE EQUIPMENT FOR POLYFREQUENCY WAVE TREATMENT OF BOTTOM-HOLE ZONE OF PRODUCTIVE FORMATION AND FLOWRATE OSCILLATIONS GENERATOR FOR THAT | 2014 |
|
RU2574651C1 |
DEVICE FOR CLEANING OF WELLS FILLED WITH FLUID | 2001 |
|
RU2206716C2 |
DEVICE FOR HYDROIMPULSIVE FORMATION TREATMENT | 2005 |
|
RU2297516C2 |
DEVICE FOR COMPLEX TREATMENT OF FACE-ADJACENT WELL ZONE | 2003 |
|
RU2253011C1 |
DEVICE FOR TREATMENT OF BOTTOM-HOLE ZONE | 1999 |
|
RU2158363C1 |
Authors
Dates
2002-06-27—Published
2000-07-14—Filed