API STANDARD RELEASING BACK OFF SPEAR

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api oilfield releasing back off spear releasing back off spear

Product Description

Technical Specification

Releasing back off spear is used for fishing, back off and releasing the fish. It can cateh fishand at the same time transmit left hand torque in back off operation. It can instead of lefthand taper taps and die collars. The fuction is similar to back off sub. The difierence ithat it does not need to make up thread with the fish, it can catch at any parts of the fish'sID.

odel	Fishing Pipe OD	Catching Range	Connection
odel	mm (inch)	mm (inch)	Connection
DLM-T60	60.33 (2-3/8)	50.8 (2)	2-3/8REG
DLM-T73	73 (2-7/8)	57.2 (2-1/4)〜77.9 (3-1/16)	NC31
DLM-T89	88.9 (3-1/2)	76.2 (3)-90.1 (3-35/64)	NC31
DLM-T114	114(4-1/2)	97.2 (3-53/64)〜103.6 (4-5/64)	4-1/2REG
DLM-T127	127 (5)	108.7 (4-9/32)〜115.8 (4-9/16)	4-1/2REG
DLM-T140	139.7 (5-1/2)	118.6 (4-43/64)〜127.3 (5-1/64)	NC50