The Rebco ROTG and ROTN are Top No-Go Lock Mandrel Sub-Assemblies designed to position and secure wireline retrievable downhole equipment in BF and BJ Landing Nipples, as well as the BL Sliding Sleeve. Both locks feature an External Fishing Neck and large flow areas through the bore, making them well-suited for high-volume production completions where maximizing the flow cross-section is important. Latch-type Collet locking fingers prevent upward movement, while the No-Go shoulders resist downward movement.

The key distinction between the two is that the ROTG is essentially a ROTN sub-assembly without the Packing Unit and Packing Mandrel. The ROTN, with its Packing Unit, is used when completion requires a pack-off to isolate the tubing annulus above and below the nipple; the ROTG is used when no pack-off is needed, and only positional locking is required. Both are available in nominal sizes of 2 3/8" and 2 7/8", with seal bores ranging from 1.781" to 2.312". Material is Norm Alloy across all sizes. Running is performed with the ROTC-1 Running Tool with Shank BN-1, and pulling is performed with the ROTRB Pulling Tool with Probe BN-1.

How to Order: Product Code 10. Specify lock type (ROTG for no pack-off, ROTN for pack-off), nominal tubing size (2 3/8" or 2 7/8"), seal bore size, and material. Refer to Page XIV-18 for tool selection for running and pulling tools based on accessory type.