Tools for sidetracking. Fishing, milling and cleaning equipment. Tools for coiled tubing units. 

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“BITTEKHNIKA” LLC was founded in 1996. Through all these years of successful experience we have developed a sustainable manufacturing system of oilfield equipment. 
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Address: 395 Ya, Shosse Kosmonavtov Str., Perm, Russia, 614065
Phone: +7 (342) 27-000-27, 294-64-64
E-mail:
info@bittekhnika.rusales@bittekhnika.ru,  pr@bittekhnika.ru

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Application

The External Mechanical Cutter TRN is used to cut and retrieve elements of drilling, casing and tubing pipes during repair, emergency and recovery works in the well.

Design

The External Mechanical Cutter consists of body, sub, fixing element, axial bearing, adjusting sleeve, laying, collar, baffle collar, spring, feeding bush, spear spins, cone, joint pins, screws of joint pints and chisels.
The body is a pipe branch which has box metric thread on lower and upper end. It is used for connection between sub and cone. There are radial cuts at the lower part of body.
Chisels with possibility of radial displacement are set on the axis of cuts. In run-in position feeding bush is fixed in body with the help of brass spear pins.
The lower edge of cone has form of cutlip guide which alleviates the entry of string “head” to the tool. 
Images and Dimensions
Technical data
To cart Code Nominal D of pipes,
in
External diameter of cutter,
in
Internal channel,in Effort for cutting pin,
lbf
Total length,
ft
Connection,
API
Maximal tensile load,
lbf
Weight, lb
TRN-42 1-5/16 - 1-1/16 3-1/16 2-1/8 449.6 2.88 NKTV-60 8 992 38.14
TRN-50 1-7/8 - 2,0 3-9/16 2-3/4 562.0 3.25 NKTV-73 11 240 55.12
TRN-60 2-3/8 - 2-1/2 4-1/2 3-1/8 786.8 3.33 NKTV-89 13 490 80.25
TRN-73 1-7/8 - 2-7/8 4-11/16 3-13/16 1 191 3.67 NKTV-102 13 490 88.18
TRN-89 2-7/8 - 3-1/2 5-1/2 4-5/16 1 191 4.0 NKTV-114 22 480 91.05
TRN-102 3-1/2 - 4,0 5-15/16 4-7/8 1 191 4.46 OTTM-140 22 480 114.6
TRN-114 4,0 - 4-1/2 7-1/8 5-7/8 1 349 4.58 OTTM-168 24 730 132.3
TRN-127 4-1/2 - 5,0 7-1/2 6-1/4 1 574 4.92 OTTM-178 26 980 154.3
TRN-140 5,0 - 5-1/2 8-1/8 6-7/8 1 798 5.25 OTTM-194 29 230 154.3
TRN-146 5-1/2 - 5-3/4 9-1/8 7-9/16 1 798 5.25 OTTM-219 31 470 176.4
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