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Type DLT-T Releasable Reversing Overshot, a new type of fishing tool, has many advantages owned by various overshot, box tap and the like. Its distinguishing features areas follows: to unscrew and recover the stuck fish: To release the fish down hole if necessary; to circulate the washing fluid as one of the accessories for reversing tools. It is widely used in well servicing.
Structure and Application
Consisting of top sub, spring, bowl, retaining seat, slip, control key, seal ring, seal seat,guide and so on. The upper end of top sub is connected with other tools and drill tool. The lower end of top sub is connected with bowl equipped with spring in the interior. There are three control keys uniformly distributed in the inner wall of the upper end of bowl, the control keys are used to control the position of retaining seat. Three keys are inserted separately in three grooves in the tapered interior section of lower end in bow where three keys are used to transmit torque. The tapered interior section produces a pinch force against the slip to trigger the fishing operation. The inclined angle among three control keys play an important role in retaining conformance of the slip with the bowl to ensure that the tools can be released easily from the fish.
The retaining seat is installed at the upper end of the external bow where the three keys are placed. The retaining seat not only can slide axially, but also rotates round the axial line moving with the slip which is installed in the internal circular recess.
Specification - Table 1 Releasing and Reversing Overshot Connection LH
Model | O.D (mm) | Max.Fishing Size(mm) | Allowed Pull(KN) | Releasing Pull &Allowed Torque | Connection(Box LH) | |
Pull(KN) | Torque(N.m | |||||
DLT-T95x48 | 95 | 48 3 | 250 | 120 | 3100 | 2 7/8 REG |
DLT-T105X60 | 105 | 63 5 | 350 | 150 | 5750 | NC31 |
DLT-T114X73 | 1 1 4 | 78 6 | 420 | 180 | 7750 | NC31 |
DLT-T134X89 | 134 | 93 2 | 500 | 180 | 10250 | NC38 |
DLT-T145x102 | 145 | 1016 | 700 | 200 | 11020 | NC38 |
DLT-T160X11 4 | 160 | 114.3 | 900 | 200 | 12150 | NC38 |
DLT-T185X127 | 185 | 127 | 1200 | 240 | 13500 | NC50 |
DLT- T2000X1 40 | 200 | 139 7 | 1500 | 240 | 15300 | NC50 |
Specification - Table 2 Releasing and Reversing Overshot connection RH
Model | O.D. (mm) | Max.Fishing Size(mm) | Allowed Pull(KN) | ReleasnigPull& Allowed Torque | Conneciton(Box RH) | |
Pull(KN) | Torque(N.m | |||||
DLT-T105 x60F | 105 | 63.5 | 350 | 150 | 5750 | NC31 |
DLT-T114x73F | 114 | 78.6 | 420 | 180 | 7750 | NC31 |
DLT-T134x89F | 134 | 93.2 | 500 | 180 | 10250 | NC38 |
DLT- T160 X114F | 160 | 114.3 | 900 | 200 | 12150 | NC38 |
FAQ
1. Who are we?
Topland is an integrated supplier established in 2008. We are a
global group of oilfield supplies with excellent teams in more than
5 countries. such as UAE, Kuwait, Iran and Saudi Arabia. We cooperated with ADES, ECDE, EDC, SOCAR-AQS, PDL, SAKSON, ONGC
etc.
2. How can we guarantee quality?
Always a double requirements and drawing checking before the
production;
Always final Inspection before shipment;
3. What can you buy from us?
Drilling rig equipment and the related spares for the oil and
natural gas industries. Like Rig Components, Drawworks Spare parts
and Mud Pump Spare parts, Hydraulic Disc Brake,Solids Control
Equipment, Drilling and Fishing Tools,Wellhead Control
Equipment,Drilling Accessories, Cementing Equipment and Tools etc.
4. Why should you choose us?
4-1. Professional & Efficient, Customer Focus, Win-win
Cooperation
4-2. Fast Quote, Competitive price & within shortest lead time
4-3. Complete Range of products, like spare parts which are interchangeable with most of the well-known OEM equipment.
4-2. Order tracking service
5: How is the packing?
All the packing will meet the strict export packing requirement, we surely know how important the beautiful and firm packaging to the goods.
6: What is your terms of payment?
A: Generally by T/T, 30% advance payment, the balance 70% payment should be paid before delivery. We support EXW, FOB, FCA, CFR, CIF, CIP, DAP, DDU and DDP INCO Terms.