Abandonment Tools

The spear is illustrated with 36" Stop Plate and Grapple Segments to pick up 36" Conductor, the Grapple is shown in the set position.

The Rotating Type Spear utilises a one piece body design with a non rotating Grapple Body, the Grapple is shown in the set position.

Description:

• Available as MTDC 9 SS NR, MTDC 13 SS NR and MTDC 18 SS NR Types with one piece body design suitable for casing pick up and backing out mud line suspension systems on Jack Up Rigs.
• Strength is limited only by the top connection due to the one piece body design.
• The Spears may be released in the event the casing or Wellhead can not be recovered.
• Easily redressed in the field or remote locations, no specialised tools or equipment required.

Grapples To Suit All Spears and Applications

• Full range of Grapples, Grapple Carriers, Segments and Stop Plates available as well as special Segments to fit the Wellhead landing profile (internal).
• Subject to Grapple selection will catch Wellhead in non-critical area.
• Available as MTDC 9 RTS, MTDC 13 RTS LU and MTDC 18 RTS LU Types with minimal components suitable for cutting Wellheads in tension.
• Suitable for other applications per the SS NR Types if converted (LU designation).
• RTS design eliminates the need for Marine Swivels.
• Will recover the Wellhead and casing section simultaneously after cutting saving multiple trips. The Spears may be released in the event the casing or Wellhead can not be recovered.
• Strength is limited only by the top connection due to the one piece body design.
• Available with plain or roller thrust bearing subject to application.
• Easily redressed in the field or remote locations, no specialised tools or equipment required.

McGarian TDC Limited has developed a rotating and non-rotating spear system which utilises an industry standard grapple and carrier design, which can be used to engage conductors, casings and profiles in wellheads. The rotating spear is particularly useful in well abandonments where multiple casing strings may be cut and pulled in conjunction with the well head simultaneously. The non-rotating spear is particularly useful for cutting and backing out Mud Line Suspension systems.

McGarian TDC Limited is also developing rigless abandonment technology which may be useful when considering platform abandonment requirements, as well as rigless abandonments on both sub sea and land based wells.

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