FIELD: operation of oil wells; pumping formation fluids out of wells; drilling wells by hydraulic hammers, etc. SUBSTANCE: adjustable valve fitted at upper point of hydraulic passage connecting the drive pump with plunger sucker rod mechanism is used for bleeding air from hydraulic passage. Adjustable valve may be made in form of spring- loaded sealed-up shut-off valve fitted in body for change of size of cross section of discharge passage by acting on the valve by adjusting screw via lever and/or intensified bleeding of air manually by means of rod. EFFECT: enhanced efficiency of transmission of pressure pulses from drive pump to drive plunger of submersible sucker rod mechanism. 2 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DOWNHOLE PNEUMATIC HAMMER | 1998 |
|
RU2149972C1 |
| UNIVERSAL EMERGENCY ADAPTER | 1998 |
|
RU2151266C1 |
| AIR DISTRIBUTING DEVICE OF AIR HAMMER | 1998 |
|
RU2154145C2 |
| MECHANICAL HOLE REAMER | 1998 |
|
RU2152503C1 |
| APPARATUS FOR MAINTAINING HOLE-BOTTOM CIRCULATION OF DRILLING MUD | 0 |
|
SU1323694A1 |
| DIAMOND REAMER | 1998 |
|
RU2152504C1 |
| MATERIAL FOR DIES OF DIAMOND AND ABRASIVE TOOLS AND METHOD OF MANUFACTURING THEREOF | 1998 |
|
RU2136479C1 |
| ARRANGEMENT FOR PRODUCING BOTTOM-HOLE CIRCULATION OF FLUSHING FLUID | 0 |
|
SU1472634A1 |
| HYDRAULIC ROD DRIVE OF A SUBMERSIBLE POSITIVE DISPLACEMENT PUMP (EMBODIMENTS) | 2023 |
|
RU2802907C1 |
| DIAMOND DRILL BIT | 1996 |
|
RU2112131C1 |
