FISHING TOOLS - National Oilwell Varco

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Fishing Magnets
Bowen ® Fishing Magnets
NOV Downhole Bowen ® Fishing Magnets are used to retrieve all types of small objects having
magnetic attraction from bore hole bottoms. Such undrillable objects as bit cones, bearings,
slips, tong pins, and milling cuttings can often be retrieved only by magnetic attraction.
These Fishing Magnets are particularly valuable for use prior to diamond coring. In a single
trip, the Bowen ® Fishing Magnet will completely clean the hole of these damaging junk items,
insuring good performance and safeguarding the valuable bit.
Bowen ® Fishing Magnets may be run on wire lines or on pipe. Wireline operations have the
advantages of speed and economy. Pipe operations have the great advantage of utilizing the
generous circulation holes in the magnet to eliminate settlings above the fish, and to loosen
the fish (see chart below). The first six assemblies (with sucker rod connections) do not have
circulation bores.
Bowen ® has Wireline Adapters available to run between the magnet and cable head or rope
socket. When ordering, specify the required top connection and the magnet to be used with.
The Flush O.D. Type Guide is sold as part of the assembly.
Cut-Lipped and Mill Type Guides are available as optional accessories. Order by standard
guide number, specifying type required and magnet to be used on.
RECOMMENDED SPARE PARTS:
(1) 1 Lipped Guide
(2) 1 Mill Guide
Cut-Lipped Guide Mill-Type Guide
Send for Bowen ® Technical Manual No. 3400 which includes complete descriptions of construction, operation,
maintenance, and parts listing for Bowen ® Fishing Magnets.
Wireline Adapter
Bowen ® Fishing Magnet
Flush O.D.
Type Guide
Bowen ® Fishing Magnets
Hole Size 1 1/4 to 2 1 5/8 to 2 1/2 2 to 2 3/4 2 3/8 to 3 1/4 2 3/4 to 3 5/8 3 to 3¾ — 3 1/4 to 4 1/8 4 to 4 1/4
O.D. Size 1 1 1/4 1 1/2 1 3/4 2 1/4 2 1/2 — 3 3 1/4
Top Connection (Pin) 5/8 11-N.C. 5/8 S.R. 5/8 S.R. 3/4 S.R 3/4 S.R. 3/4 S.R. — 2 3/8 Tbg. 2 3/8 Tbg.
Approximate Pull (lbs*) 5 to 7 8 to 10 11 to 14 15 to 20 25 to 50 50 to 85 — 85 to 90 85 to 190
Complete Assembly Part No. 32060 32080 32100 32120 32150 32170 — 32180 32190
Weight 1 1 1/2 3 1/4 5 16 18 — 20 25
Hole Size 4 1/4 to 4 1/2 4 1/2 to 5 5 1/8 to 5 1/2 5 5/8 to 6 6 1/8 to 6 1/2 6 1/8 to 6 1/2 — 6 5/8 to 7 1/2 7 5/8 to 8 1/2
O.D. Size 3 1/2 4 4 1/2 5 5 1/2 5 3/4 — 6 7
Top Connection (Pin) 2 3/8 Reg. 2 3/8 API Reg. 2 7/8 API Reg. 2 7/8 API Reg. 3 1/2 API Reg. 3 1/2 API Reg. — 3 1/2 API Reg. 4 1/2 API Reg.
Approximate Pull (lbs*) 150 to 250 175 to 250 250 to 320 320 to 385 385 to 425 385 to 425 — 425 to 500 550 to 700
Complete Assembly Part No. 32210 32230 32240 32260 32270 32280 — 32290 32300
Weight 27 1/2 43 67 80 95 106 — 120 162
Hole Size 8 5/8 to 9 3/4 9 7/8 to 11 5/8 10 1/2 to 11 7/8 11 3/4 to 13 12 1/4 to 14 15 17 17 20
O.D. Size 8 9 10 10 1/2 11 1/2 14 16 16 19
Top Connection (Pin) 4 1/2 API Reg. 6 5/8 API Reg. 6 5/8 API Reg. 6 5/8 API Reg. 6 5/8 API Reg. 6 5/8 API Reg. 6 5/8 API Reg. 6 5/8 API Reg. 13 3/8 Reed
V-4 Thd.
Approximate Pull (lbs*) 700 to 850 850 to 1000 1000 to 1125 1125 to 1260 1260 to 1550 1700 to 2100 — 3200 to 4000 4200 to5000
Complete Assembly Part No. 32310 32330 32340 32350 32370 32380 145729 79183 79189
Weight 205 335 390 431 512 770 — 1200 1700
* Calculated for full face contact.