We developed the DKZ technology successfully in 2005. We are now introducing our 3rd generation of high-pressure hydraulic jet DKZ downhole tool and technology, which is a revolutionary technology. We have obtained the Chinese invention patent certificate.
Advantages:
· Surface control of window openings simplifies operations and reduces costs
· Low cost due to no need for coiled tubing
· Low resistance enhances jet drill's effective water power
Equipment:
· Surface Equipment
o YJHL100-447: high-pressure fluid operation vehicle or operation skid
o Equipped with an abrasive additive and sand mixing system
o Operational control system included
· Downhole Tool System
o High-pressure hydraulic jet three-branch downhole tool system
Main Parameters of DKZ Surface Equipment
Model | Max Operating Pressure MPa (psi) | Max Working Displacement L/min(gpm) | Plunger Pump Max Input Power kW（hp） | Sand rate kg/min |
YJHL100-447 | 99.7（14440） | 936（248） | 447（600） | 5-120 |
Note: The surface equipment can also be separately configured with a remote instrument vehicle. For details, please consult HPT.
Main Parameters of the DKZ Downhole Tool System
Model | Applicable Wellbore | Radial Extension Length of Jetting Tube (m) | Working pressure (MPa) |
3DKZ5 | 5" | 5 | 50-70 |
3DKZ51/2-5 | 51/2" | 5 | 50-70 |
3DKZ7-5 | 7" | 5 | 50-70 |
For open-hole wells not needing small window openings, the high-pressure hydraulic jet DKZ downhole tool can be simplified. Multiple tools can be connected in series and lowered into the well for multi-branch jetting, enhancing operational efficiency.
For details, please consult HPT.
