Working Principle
When the salvager enters the center tube of the drill bit, the slider moves up, so that the salvager head can be inserted into the center tube. When the slider is up, the slider moves down and tightens, and the friction bit is used to lift the drill bit. The connecting rope on the slide will tighten tightly, just pull out the center tube.
Before salvaging, you must first determine the position of the drill bit at the bottom of the hole. A thin plate can be bolted to the bottom of the drill rod. The drill rod can be dropped to the bottom of the hole and pressed onto the drill bit. The indentation left to determine the relative position of the hole bottom drill bit and the center of the drill turret, and then move the rig or turntable so that the center of the turntable is facing the center tube of the wound head, then it can ensure that the fishing device can be accurately inserted into the center tube.
Key points of operation:
(1) Measure the length of the salvage tubing, verify the depth of the fish roof well, and the salvage entry
(2) Select the fishing tool and go down the fishing pole to explore the fish top
(3) Salvage in combination with the salvage tools used
(4) Trial mention, if the reading of the dynamometer increases obviously, indicating that it has been held, then lift the pipe string steadily and remove the falling objects.
(5) If a card is encountered after fishing, the card will be unlocked or reversed, the salvage pipe will be pulled out, and the next step will be studied.
HQU Diamond Drilling Overshot
| 1-HQU Overshot Eye Bolt 2-HQU Overshot Cable Swivel Collar 3-HQU Overshot Thrust Bearing 4-HQU Overshot Castle Nut 5-HQU Overshot Cotter Pin 6-HQU Overshot Grease Fitting 7-HQU Overshot Cable Swivel Body 8-HQU Overshot Upper Body |
9-HQU Overshot Pin 10-HQU Overshot Pump-In Lip Seal 11-HQU Overshot Seal Seat 12-HQU Overshot Indicator Bushing 13-HQU Overshot Ball 14-HQU Overshot Head 15-HQU Overshot Plain Pin 16-HQU Overshot Spring Pin 17-HQU Overshot Compression Spring 18-HQU Overshot Lifting Dog |
NQU Quick Pump-in Overshot Assembly
| 1-NQU Overshot Eye Bolt 2-NQU Overshot Cable Swivel Collar 3-NQU Overshot Thrust Bearing 4-NQU Overshot Castle Nut 5-NQU Overshot Cotter Pin 6-NQU Overshot Grease Fitting 7-NQU Overshot Cable Swivel Body 8-NQU Overshot Upper Body 9-NQU Overshot Pin |
10-NQU Overshot Pump-In Lip Seal 11-NQU Overshot Seal Seat 12-NQU Overshot Indicator Bushing 13-NQU Overshot Ball 14-NQU Overshot Head 15-NQU Overshot Plain Pin 16-NQU Overshot Spring Pin 17-NQU Overshot Compression Spring 18-NQU Overshot Lifting Dog |
BQU Wireline Overshot
| 1-BQU Overshot Eye Bolt 2-BQU Overshot Cable Swivel Collar 3-BQU Overshot Thrust Bearing 4-BQU Overshot Castle Nut 5-BQU Overshot Cotter Pin 6-BQU Overshot Grease Fitting 7-BQU Overshot Cable Swivel Body 8-BQU Overshot Upper Body 9-BQU Overshot Pin |
10-BQU Overshot Pump-In Lip Seal 11-BQU Overshot Seal Seat 12-BQU Overshot Indicator Bushing 13-BQU Overshot Ball 14-BQU Overshot Head 15-BQU Overshot Plain Pin 16-BQU Overshot Spring Pin 17-BQU Overshot Compression Spring 18-BQU Overshot Lifting Dog |
