Roller Stem Bar

DTI's Stem Bars are used in wireline tool strings to provide extra weight. When used in conjunction with hydraulic or mechanical jars, the closing speed is increased and jarring impact is also magnified.

 

Roller Stem Bars are used in deviated wells to minimise wireline toolstring friction. They have a similar mass to Solid Stem Bars.

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DTI offer alternate sizes, materials and thread connections. Please contact us for more information.

Part NumberFish NeckOutside DiameterStandard ConnectionLengthWeight
150RSTEM-21.375"1.50"15/16 UN2FT12 LBS
188RSTEM-21.750"1.875"1 1/16 UN2FT19 LBS
212RSTEM-21.750"2.125"1 1/16 UN2FT24 LBS
250RSTEM-22.313"2.50"1 9/16 UN2FT34 LBS
150RSTEM-31.375"1.50"15/16 UN3FT18 LBS
188RSTEM-31.750"1.875"1 1/16 UN3FT28.5 LBS
212RSTEM-31.750"2.125"1 1/16 UN3FT36 LBS
250RSTEM-32.313"2.50"1 9/16 UN3FT50 LBS
150RSTEM-51.375"1.50"15/16 UN5FT30 LBS
188RSTEM-51.750"1.875"1 1/16 UN5FT47.5 LBS
212RSTEM-51.750"2.125"1 1/16 UN5FT60 LBS
250RSTEM-52.313"2.50"1 9/16 UN5FT83 LBS

Roller Stem Bar

250RSTEM-3QC2 Roller Sub

DTI's Stem Bars are used in wireline tool strings to provide extra weight. When used in conjunction with hydraulic or mechanical jars, the closing speed is increased and jarring impact is also magnified.

 

Roller Stem Bars are used in deviated wells to minimise wireline toolstring friction. They have a similar mass to Solid Stem Bars.

Data Table

Part NumberFish NeckOutside DiameterStandard ConnectionLengthWeight
150RSTEM-21.375"1.50"15/16 UN2FT12 LBS
188RSTEM-21.750"1.875"1 1/16 UN2FT19 LBS
212RSTEM-21.750"2.125"1 1/16 UN2FT24 LBS
250RSTEM-22.313"2.50"1 9/16 UN2FT34 LBS
150RSTEM-31.375"1.50"15/16 UN3FT18 LBS
188RSTEM-31.750"1.875"1 1/16 UN3FT28.5 LBS
212RSTEM-31.750"2.125"1 1/16 UN3FT36 LBS
250RSTEM-32.313"2.50"1 9/16 UN3FT50 LBS
150RSTEM-51.375"1.50"15/16 UN5FT30 LBS
188RSTEM-51.750"1.875"1 1/16 UN5FT47.5 LBS
212RSTEM-51.750"2.125"1 1/16 UN5FT60 LBS
250RSTEM-52.313"2.50"1 9/16 UN5FT83 LBS

Product Customisation

DTI offer alternate sizes, materials and thread connections. Please contact us for more information.