When activated from an activation ball dropped at surface, the Z-Drive system pushes the cutter blocks upward and radially outward to the fully open position, facilitating rapid cutout and ensuring a full-gauge, concentric borehole. When pumping stops, the cutter blocks retract. Dependable retraction of the cutter blocks helps avoid stuck BHAs. Integrated jet nozzles and flow paths improve evacuation of cuttings while drilling. The reamer enables full flow through the BHA in both open and closed positions
Product Specification
|
OD (in) |
Enlarge Size (in) |
Min Lead Hole Size (in) |
Max Flow Rate (gpm) |
|
5 5/8 |
6.5~7 |
5 7/8 |
350 |
|
6 1/8 |
7~7.5 |
6 3/8 |
350 |
| 8 |
9~10.25 |
8 1/4 |
750 |
|
9 1/4 |
10.25~11.75 |
9 1/2 |
750 |
| 10 |
11~12.25 |
10 1/2 |
1200 |
|
11 5/8 |
13~15 |
12 1/8 |
1700 |
|
14 1/4 |
15.5~18.25 |
13 1/2 |
1700 |
|
16 |
17.5~20 |
16 1/2 |
1700 |
Advantages and Features
Improve drilling performance
Provides on-demand wellbore enlargement
Ensures full-gauge concentric wellbores
Unlimited activations regardless of wellbore inclination
Full-flow capability in reaming and non-reaming modes
Effective cleaning of borehole with integrated jet nozzle & flow paths
HELI has own research institute, R&D capability is very strong, the team covering technical fields such as mechanical, electrical, hydrodynamic analysis, intelligent control, communication and IOT. We have rich practical experience in the research and development, such as Hydraulic Drilling Tool, electric drilling tool etc..
The main research areas of Heli Research Institute involve deep earth, deep space, deep sea. Read More
FAQ
Q: How is your production capability?
A: We have more than ten high-tech production equipment equipped with strict testing facilities to ensure that the quantity and quality of our products meet the standards
Q: How to provide local warranty services?
A: We have established branches in different countries to provide timely and professional services to our clients, such as Dubai, Russia etc..
Q: Are the core components also independently developed and produced by HELI?
A: Yes! Our research and development field covers comprehensively from the core to the whole. Especially for motor, our high-temperature resistant micro motors is hand-made, it can withstand temperatures up to 200 degrees Celsius
Q: What kind of projects have you undertaken?
A: There are many oil projects in the Middle East and Russia that we provide services and products for. In terms of offshore oil, we have also established good cooperation with many European clients
Q: Can you provide customized product?
A: Yes, of course, please tell me your requirement, we will design the scheme for you.
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