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Hole Opener
● Material AISI 4145H Fully Heat-Treated Alloy Steel
● Used to enlarge a pre-drilled pilot hole or to ensure that the gauge is maintained in a deviated hole.
● Used to create a larger diameter hole in a casing or a liner.
● The same body, properly configured with rollers and pressure-adjusting blocks, can be used for different borehole sizes.
● Used in oil and gas exploration, mining, and construction projects.
Description
China Vigor Drilling Oil Tools And Equipment Co., Ltd. is one of the most professional manufacturers and suppliers of hole opener in China, featured by competitive price and fast delivery. Welcome to buy high quality hole opener in stock here from our factory.
Hole opener is an indispensable borehole enlarging tool for the oil and gas industry. Installed in the drill string, these abrade the well walls to widen sections to the desired diameter. it provides significant operational efficiencies and cost reduction across drilling, completion, and production applications.
Your Oilfield Hole Opener Supplier--China Vigor
(1) Hole openers Materials
Vigor's products are manufactured using fully heat-treated alloy steel, which is available with carbide-milled teeth and insert cutters, to withstand harsh downhole conditions.
(2) Advantages
Vigor's Oilfield products are downhole tools designed for precision borehole enlargement in a variety of drilling and completion applications. They utilize cutting structures on blades or cones to abrade and increase the diameter of the wellbore beyond the pilot bit size, whose arms and cutters are hard-faced for protection in three different designs for varying conditions and rock formations. its design allows for field-changing cutters.
(3) The key components include the cutter arms, main body, hydraulic system, and telemetry modules. Advanced engineering optimizes these to deliver targeted and consistent underreaming performance.
(4) Types:
- Cones Type - Uses steel roller cones with hard-faced tungsten carbide inserts as cutters. The rotating cones enlarge the borehole.
- Blades Type - Employs extendable blades tipped with PDC cutters. The actuated blades abrade the hole.
(5) Hole opener Size
Vigor has many different types to meet the various applications. The Max. size can be 36".Special size is also available with detailed well conditions. the following table includes some required standard sizes. Vigor can provide most sizes on request.
|
Hole Open Diameter |
Qty of Cutters |
Min. Pilot Hole |
Fishing Neck Diameter |
I.D |
Top Connection (Pin) |
Bottom Connection (Box) |
Overall Length |
|
12-1/4" |
3 |
8-1/2" |
8" |
1-1/2" |
6 5/8 REG |
6-5/8 REG |
55" |
|
16 |
3 |
10" |
9-1/2" |
2-1/4" |
7-5/8 REG |
6-5/8 REG |
59" |
|
17-1/2" |
3 |
10" |
9 1/2" |
2-1/4" |
7-5/8 REG |
6-5/8 REG |
59" |
|
22" |
3 |
12-3/4" |
9 1/2" |
2-1/3" |
7-5/8 REG |
6-5/8 REG |
69" |
|
23" |
3 |
12-3/4" |
9 1/2" |
3" |
7-5/8 REG |
6-5/8 REG |
69" |
|
24" |
3 |
14" |
10" |
3" |
7-5/8 REG |
7-5/8 REG |
69" |
|
26" |
3 |
17-1/2" |
10" |
3" |
7-5/8 REG |
7-5/8 REG |
69" |
|
36" |
4 |
26" |
10" |
3-1/2" |
7-5/8 REG |
7-5/8 REG |
87" |
※ This table includes some required standard sizes. Vigor can provide most sizes on request.
Principles
- They are deployed downhole as part of a bottom-hole assembly. During drilling, the cutters engage the wellbore walls when actuated.
- The rotating cutters abrasively scrape off the rock to incrementally increase the hole diameter.
- Drilling fluid ejected from nozzles keeps the cutters clean and cools them. The enlarged hole reduces friction for run-in and cementing.
Why choose vigor
Compared to conventional under-reaming approaches:
(1)Precision Control: On-tool electronics and surface instrumentation enable close monitoring and control of the borehole diameter. This achieves accurate enlargement to the planned size.
(2)Enhanced Efficiency: The optimized cutting structures open the hole faster with lower torque and vibration compared to conventional underreaming. This reduces rig time and costs.
(3)Minimized Risk: The enlargement in a single trip minimizes exposure to unstable formations. Real-time downhole weight telemetry prevents damage.
(4)Versatility: its designs to suit a wide range of wellbore conditions, hole sizes, casing types, reservoir pressures, and formation strengths.
(5)Durability: The robust sealing systems, wear-resistant cutters, and high-strength materials ensure reliable performance and long working life.
FAQ
1. How do I choose the right size?
The size you need will depend on the desired final borehole diameter and the diameter of the existing hole or casing. It is recommended to consult with a drilling expert or a manufacturer to determine the appropriate size for your project.
2. What types of cutting elements are used in it?
Equipped with a variety of cutting elements, such as tungsten carbide inserts, PDC (polycrystalline diamond compact) cutters, or a combination of both. The choice of cutting elements depends on the type of formation you are drilling through and the desired performance.
3. How long does it last?
The longevity depends on various factors such as the type of formation, drilling conditions, RPM (rotations per minute), and maintenance practices. With proper care and maintenance, it can last for multiple drilling operations.
Whether you are a drilling contractor, completion engineer, production operations team, or reservoir management professional, As a critical enabling tool, Hole openers facilitate efficient end-to-end well construction and completion activities. if you need more purchasing information, please contact us.
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