Lift nipple is designed to lift up or put down and screw on or off drill sting. It has two types. One with thread connector on two ends is named as type A, and another only with thread connector on bottom end is named as type B. The advantages of it are simple and convenient in use, and can save operation time. And so it is used in a large number of oil fields
Technical Parameter:
Type
Left-hand Thread
O.D
O.D
TSDJ-73
NC26
78.4
111.1
NC23
88.9
TSDJ-88.9
NC31
104.8
127
NC35
120.7
NC38
127
TSDJ-127
NC44
152.4
168.3
158.8
NC46
158.8
165.1
171.5
NC50
177.8
6-5/8REG
209.6
7-5/8REG
241.3
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