API Certified Drilling Downhole Fishing Equipment Tools Releasing and Reversing Overshot

• Customization: Available
• After-sales Service: Support
• Warranty: 1 Year
• Model NO.: DLT-T95
• Manufacturing Process: Casting
• Surface Treatment: Polishing
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Payment: L/C,T/T
• Color: Blue
• Connection: Nc
• Size: Customized
• Certification: API
• Transport Package: Wooden Box
• Specification: NC26
• Trademark: Tianhe
• Origin: China
• HS Code: 8431431000
• Production Capacity: 50000PC/Year

Product Description

Company Profile

Established in 1973 as an state-owned Mudanjiang Petroleum Machinery Factory.   After 50 years a new private company(Tianhe) was registered and established in 2006.   At present, Tianhe Group has 5 sales companies, including Chengdu, Beijing, Shanghai, Yanan, Mudanjiang branch. 2 large factories, including Mudanjiang and Shanghai factory,  controlling the important sales territories in China. The company is also actively expanding its business overseas. Currently, more than 50 countries and regions around the world, as well as over 200 well-known oil companies and service company customers, are using products under the Tianhe brand. Tianhe has become one of the most popular Asian oil brands.

Product Description

Type DLT-T Releasable Reversing Overshot Description
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
are as 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 bowl 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 bowl 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.

Product Parameters

Model	O.D. (mm)	Max. Fishing Size (mm)	Allowed Pull (KN)	Releasing Pull & Allowed Torque		Connection (Box LH)	Product Code
				Pull (KN)	Torque (N.m)
DLT-T95×48	95	48.3	250	120	3100	2 7/8 REG	L07-4800
DLT-T105×60	105	63.5	350	150	5750	NC31	L07-6000
DLT-T114×73	114	78.6	420	180	7750	NC31	L07-7300
DLT-T134×89	134	93.2	500	180	10250	NC38	L07-8900
DLT-T145×102	145	101.6	700	200	11050	NC38	L07-10200
DLT-T160×114	160	114.3	900	200	12150	NC38	L07-11400
						2 7/8 REG	L07-11410
DLT-T185×127	185	127	1200	240	13500	NC50	L07-12700
DLT-T200×140	200	139.7	1500	240	15300	NC50	L07-14000

Model	O.D. (mm)	Max. Fishing Size (mm)	Allowed Pull (KN)	Releasing Pull & Allowed Torque		Connection (Box LH)	Product Code
				Pull (KN)	Torque (N.m)
DLT-T105×60F	105	63.5	350	150	5750	NC31	L07-6010
DLT-T114×73F	114	78.6	420	180	7750	NC31	L07-7310
DLT-T134×89F	134	93.2	500	180	10250	NC38	L07-8910
						NC31	L07-8920
DLT-T160×114F	160	114.3	900	200	12150	NC38	L07-11420

Detailed Photos

 

Certifications

Packaging & Shipping

FAQ

1.Q:Are you a factory or trading company?
We are a factory and the Top 3 of oildrilling equipment manufacturer.
2.Q:Where is your factory located? 
We have two factories. One located in Heilongjiang Province, another one located in Shanghai, China.
3. Q:What do your factory do regarding quality control?
From material to products, we inspect each process to keep good quality.
And SGS inspection can be accepted.
4.Q:How about MOQ ?
We have stock of common sizes at hand, so even few ton is accepted.
5.Q:How about payment ?
Both T/T and L/C can be accepted.
6.Q: How long does your warranty?
We can ensure the quality within 90 days after receiving the cargoes.