Tubular Wireline Jar

Manual D470

Manual D470 • Tubular Wireline Jar • Page 1

Logan Tubular Wireline JarOverview................................................................................ 2Uses ...................................................................................... 2Construction .......................................................................... 2Operation............................................................................... 2Tool Illustration....................................................................... 3Maintenance.......................................................................... 4Disassembly .......................................................................... 4Assembly ............................................................................... 4Specifications and Parts Lists................................................ 5

Contents

Logan Tubular Wireline Jar • 1

LEGAL NOTICEAll references to Bowen® part numbers in this literature are used to identify interchangeable tools and parts. Reference to such tools and parts does not imply that Logan Oil Tools is a licensee or is in any way affiliated with National Oilwell Varco.Logan Oil Tools does not sell, or offer to sell, National Oilwell Varco (Bowen) products.

“Bowen” is a registered trademark of National Oilwell Varco.

1st Printing, August 2012. Rev. 0

Page 2 • Tubular Wireline Jar • Manual D470

OVERVIEWThe Logan Tubular Wireline Jar is a straight-pull actuated jar that has no restricted stroke. The simple and rug-ged Logan Tubular Wireline Jar may be used alone or in combination with the Logan Hydraulic Wireline Jar. This com-bination of tools is particularly useful in permanent well completion operations when the ability to jar both ways is es-sential.

USESThe Logan Tubular Wireline Jar, when used in combination with the Logan Hy-draulic Wireline Jar, is particularly useful in permanent well completion to aid in pulling, fishing, or gas lift operations. Upward jarring with this combination is done in the usual manner with the Logan Hydraulic Wireline Jar.

CONSTRUCTIONThe Logan Tubular Wireline Jar is com-posed of a top sub, link body, mandrel, and a bottom sub with set screw.

The top sub is constructed with wrench flats and a fishing neck. A lock pin secures the mandrel to the top sub and provides safety against loosening and backing off during operation during operation.

The link body is perforated to elimi-nate fluid cushioning and mud packing while in service. The link body bottoms against the bottom sub when it closes on the down stroke.

The mandrel has an integral knocker at its upper end. The knocker strikes the lower end of the link body at the end of an up-stroke to produce impact.

OPERATIONTo provide an effective means to bump up or down, whichever may be required during the operation, a Logan Tubular Wireline Jar may be assembled in the string immediately above the Hydraulic Wireline Jar to provide a convenient way of bumping down. This combina-tion assures the operator of being able to jar up or down if needed during the operation.

It is recommended that several sinker bars with an outside diameter that corresponds to the Jar be assembled above the tool to provide the neces-sary weight for sufficient impact during operation. The weight of the sinker bars will determine the intensity of the jarring blowand also aid in closing the Jar with minimum time delay. The assembled tool is run into and out of the well like any other fishing tool but on measuring line or stranded wireline.

The zero point or depth measuring reference should take the stroke length of the Jar into account. Otherwise, no special precautions or considerations are necessary. The stroke length of each Jar is listed on page 6. The stroke length of a Jar can be checked by mea-suring its length when it is open and closed. The difference between these two measurements is the stroke length.

The Logan Tubular Wireline Jar is actu-ated either manually or by the use of a reel. The Jar is positioned by pulling or reeling. Sudden release or rapid unreel-ing causes the weight of the Jar and sinker bars to close the Jar.

To Jar UpThe tools are assembled and run in the hole in the usual manner and the fish or equipment is engaged. Upward jarring with the Logan Tubular Wireline Jar is done in the same manner as with the Logan Hydraulic Wireline Jar.

With the Jar is in the closed position, an upward strain is placed on the wireline to pull the mandrel upward. The upward jarring blow transmits energy to the tools installed below the Jar. The transmitted jarring force is propor-tional to the strain taken on the string. A greater strain on the string increases the intensity of the blow, while a lighter strain on the string will lessen the inten-sity.

WARNING: At no time during the pull cycle should the maximum recom-mended load be exceeded. Refer to Chart A – Strength Data on page 5 for pull loads.

An upward strain on the wireline is created by reeling the hoist until the wireline is stretched. Set the hoist brake and wait for the Jar to strike. After the Jar has struck, slack off the string to allow the Jar to close.

Repeat the jarring action by pulling an-other strain on the string. The frequency of the blows struck can be as rapid as the operator can pick up and slack off the running string. The operation can be repeated as needed to free the stuck tool.

To Jar DownThe tools are assembled and run in the hole in the usual manner and the fish or equipment is engaged.

Manually pull or use a reel to position the Logan Tubular Wireline Jar. Sudden release or rapid unreeling will cause the weight of the Jar and sinker bars to close the Jar. As the Jar closes on the down-stroke, a sharp downward blow will be delivered when the link body bot-toms against the bottom sub.

Repeat the jarring action by pulling an-other strain on the string. The frequency of the blows struck can be as rapid as the operator can pull up and release the running string.

2 • Logan Tubular Wireline Jar

Manual D470 • Tubular Wireline Jar • Page 3

Logan Oil Tools reserves the right to change or discontinue designs without notice.

Link Body

Set Screw (Qty. 2)

Mandrel

Bottom Sub

Logan Tubular Wireline Jar • 3

Page 4 • Tubular Wireline Jar • Manual D470

ASSEMBLYThe Logan Tubular Wireline Jar is easily assembled using standard shop tools.Make sure all parts have been thor-oughly cleaned, inspected, and lubri-cated prior to assembly. Replace any damaged or worn parts.

1. Secure the link body horizontally in a suitable vise. Clamp near the

center of the link body.

2. Attach the top sub. Wrench only on the wrench flats.

3. Insert the lock pin into the top sub.

4. Carefully slide the mandrel into the link body and top sub.

CAUTION: Be careful not to scratch or gouge the polished mandrel sur-face.

5. Install the bottom sub.

6. Insert the set screw into the bottomsub.

MAINTENANCEThe Logan Tubular Wireline Jar should be disassembled, cleaned, inspected, and reassembled after each use.

Apply thread dope to the threaded joints and coat the mandrel with grease at reassembly. To prevent corrosion, all exposed surfaces should be cleaned, and greased or painted prior to storage.

DISASSEMBLYDisassembly should be conducted in a clean, well-equipped shop. Proceed as follows:

1. Secure the Jar horizontally in a suitable vise. Clamp near the

center of the link body.

2. Loosen and remove the set screwfrom the bottom sub.

3. Remove the bottom sub.

4. Unthread the mandrel from the top sub.

5. Carefully slide the mandrel from the link body and set it aside.

CAUTION: Be careful not to scratch or gouge the polished mandrel sur-face.

6. Using a punch, remove the lock pinfrom the top sub.

7. Remove the top sub. Wrench only on the wrench flats.

4 • Logan Tubular Wireline Jar

Manual D470 • Tubular Wireline Jar • Page 5

Logan Tubular Wireline Jar • 5

TUBULAR WIRELINE JAROUTSIDE DIAMETER 1-1/8 1-1/4 1-1/4 1-1/2 1-1/2 1-3/4 1-3/4CONNECTIONS 5/8 15/16 15/16 15/16 15/16 3/4 3/4PIN UP - BOX DOWN 11 THD 10 THD 10 THD 10 THD 10 THD SR SRLENGTH OF STROKE (INCHES) 18 20 30 20 30 20 30COMPLETE ASSEMBLY Logan Part No. 700-000-018 701-001-020 701-001-030 701-002-020 701-002-030 701-003-020 701-003-030 Bowen No. 19355 12350 12350 10689 10689 14235 14235

TOP SUB Logan Part No. AM1000 AM1001 AM1001 AM1002 AM1002 AM1003 AM1003 Bowen No. 19356 12351 12351 10677 10677 14236 14236BODY Logan Part No. AM2000 AM2001 AM2001 AM2002 AM2002 AM2003 AM2003 Bowen No. 19357 12352 12352 10758 10758 14237 14237MANDREL Logan Part No. AM3000 AM3001 AM3001 AM3002 AM3002 AM3003 AM3003 Bowen No. 19358 12368 12368 10924 10924 14232 14232BOTTOM SUB Logan Part No. AM4000 AM4001 AM4001 AM4002 AM4002 AM4003 AM4003 Bowen No. 19359 12356 12356 10678 10678 14233 14233SET SCREW Logan Part No. AV19000-001 AV19000-001 AV19000-001 AV19000-001 AV19000-001 AV19000-001 AV19000-001 Quantity 2 2 2 2 2 2 2

OUTSIDE DIAMETER 1-7/8 1-7/8 2-1/8 2-1/8CONNECTIONS 3/4 3/4 7/8 7/8PIN UP - BOX DOWN SR SR SR SRLENGTH OF STROKE (INCHES) 20 30 20 30COMPLETE ASSEMBLY Logan Part No. 701-004-020 701-004-030 701-005-020 701-005-030 Bowen No. 21430 21430 11551 11551

TOP SUB Logan Part No. AM1004 AM1004 AM1005 AM1005 Bowen No. 21431 21431 11547 11547BODY Logan Part No. AM2004 AM2004 AM2005 AM2005 Bowen No. 21432 21432 11544 11544MANDREL Logan Part No. AM3003 AM3003 AM3004 AM3004 Bowen No. 14232 14232 11531 11531BOTTOM SUB Logan Part No. AM4004 AM4004 AM4005 AM4005 Bowen No. 21433 21433 10732 10732SET SCREW Logan Part No. AV19000-001 AV19000-001 AV19000-001 AV19000-001 Quantity 2 2 2 2

Logan Oil Tools reserves the right to change or discontinue designs without notice.

LEGAL NOTICEAll references to Bowen® part numbers in this literature are used to identify interchangeable tools and parts. Reference to such tools and parts does not imply that Logan Oil Tools is a licensee or is in any way affiliated with National Oilwell Varco. Logan Oil Tools does not sell, or offer to sell, National Oilwell Varco (Bowen) products.

“Bowen” is a registered trademark of National Oilwell Varco.

©2014 Logan Oil Tools12/2014

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