Dynamic Pump Down Subs
1
DPD is a pump down sub that expands and contracts with the changing ID’s of a wellbore giving you centralization and a large surface to pump against (via a proprietary parachute material) for operations requiring horizontal deployment of a tool string. It can collapse down to 1.69" or 2.5” (depending on the model) and expand out to 8”.
These are dimensions for the 2.5" OD tool. The 1.69" version is similar only with a 1.69" OD
2
DPD has a thru contact rod so you can pump down anything from logging tools to guns. It’s 1.69" or 2.5” OD is small enough to fit through most casing sizes and get through severe restrictions/deformations but strong enough to support much larger/heavier tool strings. DPD can be run over wireline with an acme thread or below the cable head with a GO connection.
3
Significantly reduce the amount of fluid and horsepower required for moving your tool string through the lateral section of a well.