Part 9 Workover Tools
1. ESP Overshots
The ESP overshot is a special tool for fishing electric pump body, separator and protector. The ESP can be classified, according to the structure, into spring type and conventional type.
● Electric Pump Overshot Specifications
Model
| Connection thread in
| Max O. D. mm (in)
| Fishing size and type in
|
DBLT-T 93
| 2-7/8 IF
| 118 (4-21/32)
| 3-21/32 Spring
|
DBLT-T 95
| 2-7/8 IF
| 118 (4-21/32)
| 3-3/4 Spring
|
DBLT-T 98
| 2-7/8 IF
| 118 (4-21/32)
| 3-7/8 Spring
|
DBLT-T 101
| 2-7/8 IF
| 118 (4-21/32)
| 4 Spring
|
DBLT-T 93
| 2-7/8 IF
| 118 (4-21/32)
| 3-21/32 Conventional
|
DBLT-T 95
| 2-7/8 IF
| 118 (4-21/32)
| 3-3/4 Conventional
|
DBLT-T 98
| 2-7/8 IF
| 118 (4-21/32)
| 3-7/8 Conventional
|
DBLT-T 101
| 2-7/8 IF
| 118 (4-21/32)
| 4 Conventional
|
2. ESP Shaft Overshots
The ESP shaft overshot is a special tool for fishing.
● ESP Shaft Overshot Specifications
Model
| Connection thread
| Max. OD mm (in)
| Applicable fish
|
DBLT- (25-26)
| 2-7/8 IF
| 105 (4-9/64)
| 1’’Electric Pump Shaft
|
3. Sucker Rod Overshots
The Sucker rod overshot is used for fishing the broken sucker rod or other fish in the tubing.
● Sucker Rod Overshot Specifications
Model
| Connection thread
| Max OD mm(in)
| Applicable rod
|
CLT-T 16
| 3/4” Pin, Spec 11B
| 59 (2-21/64)
| Fishing 5/8” Rod in 2-1/2” Tubing
|
CLT-T 19
| 3/4” Pin, Spec 11B
| 59 (2-21/64)
| Fishing 3/4” Rod in 2-1/2” Tubing
|
CLT-T 22
| 7/8” Pin, Spec 11B
| 59 (2-21/64)
| Fishing 7/8” Rod in 2-1/2” Tubing
|
CLT-T 25
| 1” Pin, Spec 11 B
| 59 (2-21/64)
| Fishing 1” Rod in 2-1/2” Tubing
|
CLT-T 28
| 1” Pin, Spec 11 B
| 70 (2-3/4)
| Fishing 1-1/8” Rod in 3” Tubing
|
4. Three-Ball Overshots
The three-ball overshot is a special tool for fishing the sucker rod collar or the sucker rod with external upset shoulder in the well.
● Three-Ball Overshot Specifications
Model
| Connection thread
| Max OD mm(in)
| Applicable rod
|
SQ-01
| 2-7/8” TBG
| 117 (4-5/8)
| Fishing 5/8”, 3/4”, 7/8” Rod in 5-1/2” Tubing
|
SQ-02
| 2-7/8” TBG
| 117 (4-5/8)
| Fishing 1” Rod in 5-1/2” Tubing
|
SQ-04
| 2-7/8” TBG
| 95 (3-3/4)
| Fishing 5/8”, 3/4” Rod in 4-1/2” Tubing
|
SQ-06
| 2-7/8” TBG
| 114 (4-1/2)
| Fishing 1” Rod in 5-1/2” Tubing
|
SQ-07
| 2-7/8” TBG
| 95 (3-3/4)
| Fishing 5/8” Rod in 4-1/2” Casing
|
SQ-08
| 2-7/8” TBG
| 119 (4-23/32)
| Fishing 7/8”, 1” Rod in 5-1/2” Tubing
|
