Lockdown Lubricator

As a specialty rental tool company, Dutch, Inc. is expected to provide highly developed tools designed for very specific purposes. Dutch’s patented Lockdown Lubricator System has proven to be the safest and most efficient way to perform electric wireline operations to date.

Traditional methods of installing wireline lubricators on drilling and workover rigs are time consuming and potentially dangerous. Dutch’s Lockdown Lubricator System provides a seal and anchors a wireline lubricator to the rig’s BOP without removing the rig’s bell nipple and flowline.

Patent Protected

It's Quicker

Lubricator installation requires zero rig time versus hours of installation required when using traditional methods. The Lockdown System is easily affordable to keep on the rig for use as needed. In fact, a substantial cost savings can be realized even if the need to remove the bell nipple is eliminated just once in a two or three month period.

It's Safer

Workers are also much safer because the Lockdown System reduces a crew’s exposure working atop the annular BOP and reduces hole exposure time between pipe tripping and wireline operations. And, of course, it’s much safer than a chained down lubricator.

It's Better

Among the system’s other advantages are:

1. The Lockdown flange provides a full bore consistent with the BOP bore.

2. The annular seal extension protects the annular from wireline wear.

3. The system encourages proper maintenance of stud holes and ring groove of the annular BOP - a routinely neglected part of most BOP systems.

4. While tripping wireline, the well can be monitored in the same fashion used when tripping pipe.

The Lockdown System consists of two components:

•A full open bell nipple locking flange, and
•A locking mandrel that provides for a seal to the BOP’s and anchors into the flange.

Like all bell nipple flanges, the lock-down flange is bolted onto the annular BOP with the rig’s bell nipple welded atop the flange. When wireline operations occur on the rig, the lockdown mandrel is placed on the bottom of the lubricator and lowered into the hole until the mandrel shoulders up into the locking flange. Four bolts of the locking flange are then screwed into the mandrel anchoring the lubricator. Sealing of the lubricator occurs when the annular BOP is closed around the mandrel’s lower seal extension.

Lock Down Flange During Normal Rig Operation	Lock Down System During Wireline Operations