FISHING TOOLS - National Oilwell Varco
FISHING TOOLS - National Oilwell Varco
FISHING TOOLS - National Oilwell Varco
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38<br />
Rotary Shoes<br />
Bowen ® Rotary Shoes Hard-Faced with Itcoloy<br />
NOV Downhole Bowen ® Milling Shoes and Bowen ® Rotary Shoes dressed with Itcoloy are designed<br />
in various sizes and styles to meet the many conditions encountered in oil well fishing and washover<br />
operations. Illustrated are the various styles with an explanation of their intended service.<br />
Shoe Types<br />
Type A<br />
Type A Rotary Shoe is used to cut metal on the fish without cutting the casing. Cuts on the inside<br />
diameter (I.D.) and the bottom. Does not cut on the outside diameter (O.D.).<br />
Type B<br />
Type B Rotary Shoe is used for washing over a fish and cutting metal or formation in the open hole.<br />
Cuts on the outside diameter (O.D.) and the bottom. Does not cut on the inside diameter.<br />
Type C<br />
Type C Rotary Shoe is used for washing over and cutting metal, formation, or cement. Cuts freely on<br />
the inside diameter (I.D.), the outside diameter (O.D.), and the bottom.<br />
Type D<br />
Type D Rotary Shoe is used to cut metal on the fish without cutting the casing where clearances<br />
are limited. Cuts on the inside diameter (I.D.) and the bottom. Does not cut on the outside diameter<br />
(O.D.).<br />
Type E<br />
Type E Rotary Shoe is used for washing over a fish and cutting metal, formation or cement in the open<br />
hole where clearances are limited. Cuts on the outside diameter (O.D.) and the bottom. Does not cut<br />
on the inside diameter (I.D.).<br />
Type F<br />
Type F Rotary Shoe is used to size and dress the top of a fish inside of the casing. Makes a tapered cut<br />
on the inside diameter (I.D.), and cuts on the bottom. Does not cut on the outside diameter (O.D.).<br />
Type G<br />
Type G Rotary Shoe is used for washing over and cutting metal, formation or cement in the open hole<br />
with limited inside clearances. Cuts on the inside diameter (I.D.), the outside diameter (O.D.), and the<br />
bottom.<br />
Type H<br />
Type H Rotary Shoe is used for washing over and cutting metal in the open hole with limited clearance<br />
on the outside diameter (O.D.). Cuts on the inside diameter (I.D.), the outside diameter (O.D.) only.<br />
Type I<br />
Type I Rotary Shoe is used for washing over and cutting formation only. Mill tooth design permits<br />
maximum circulation. Cuts on the bottom only. Does not cut on the outside diameter (O.D.) or inside<br />
diameter (I.D.).<br />
Type J<br />
Type J Rotary Shoe is used for washing over and cutting formation only. Mill tooth design with side<br />
wings permits maximum circulation. Cuts on the bottom and on the outside diameter (O.D.). Does not<br />
cut on the inside diameter (I.D.).<br />
Type K<br />
Type K Rotary Shoe is used for washing over and cutting on the bottom face only. Does not cut on the<br />
outside diameter (O.D.), or the inside diameter (I.D.).<br />
Bowen ® also supplies all necessary components for washover operations:<br />
Washpipe — all grades, sizes, and connections.<br />
Lift Plugs — for all connections. furnished with or without bail.<br />
Drive Subs — for crossover from drill string to washpipe. Available in all connections as plain or long type with elevator recess.<br />
Send for Bowen ® Technical Manual No. 5100 which includes complete descriptions of construction, operation, maintenance, and<br />
parts listing for Bowen ® Milling Tools.<br />
Type A<br />
Type B<br />
Type C<br />
Type D<br />
Type E<br />
Type F<br />
Type G<br />
Type H<br />
Type I<br />
Type J<br />
Type K
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