Our Advantages

20-year plus experience for manufacturing;
15-year plus experience for serving top oil equipment company;
On-site quality supervision and inspection.;
For the same bodies of each heat treatment furnace batch, at least two bodies with their prolongation for mechanical performance test.
100% NDT for all bodies.
Shop self-check + WELONG’s double check, and third-party inspection (if required.)

Product Model and Specs

Product Features

WELONG’s Hole Opener: Ensuring Precision and Efficiency in Oil Field Operations

With over 20 years of manufacturing experience, WELONG takes pride in producing high-quality and customized hole openers for onshore and offshore oil fields. Our hole opener is an indispensable tool that serves two main purposes: enlarging pre-drilled holes or performing simultaneous drilling and enlarging operations.

Customization to Meet Your Needs
We understand the importance of meeting our customers’ specific requirements. That’s w WELONG’s hole opener can be tailored and processed based on your drawings and specifications. Whether you are dealing with soft to medium formation, medium to hard formation, or hard formation, we have cone types suitable for various drilling conditions.

Quality Materials and Precision Manufacturing
At WELONG, we prioritize quality throughout the manufacturing process. The body material of our hole opener is sourced from reputable steel mills, ensuring reliability and durability. Electric furnace smelting and vacuum degassing techniques are employed during the production of steel ingots. Forging is carried out using draulic or water pressure machines, with a forging ratio greater than 3:1. The grain size of our products is maintained at 5 or better, guaranteeing optimal performance. To ensure cleanliness, average inclusion content is tested according to ASTM E45 method A or C. Ultrasonic testing, following the procedures specified in ASTM A587, is conducted using both direct and angled beams to detect any flaws accurately.

Meeting API Standards
Our hole opener adheres to the stringent guidelines set by API 7-1, assuring compatibility and compliance with industry standards. We prioritize the safety and efficiency of oil field operations, and our hole opener is designed to meet the demanding requirements of the industry.

Superior Quality Control and After-Sales Service
At WELONG, we have established strict quality control measures to guarantee the reliability and performance of our products. Prior to shipment, our hole openers undergo thorough cleaning, including surface treatment with rust-proofing agents. They are then carefully wrapped in white plastic and tightly sealed with green tape to prevent leakage and protect against any potential damage during transportation. The outer packaging is specifically designed with iron racks to ensure safe long-distance shipping.

Our commitment to excellence extends beyond product manufacturing. We pride ourselves on providing exceptional after-sales service to address any concerns or queries you may have. Our dedicated team is always ready to assist you and ensure your satisfaction.

Choose WELONG’s Hole Opener for unparalleled precision, reliability, and efficiency in your oil field operations. Experience the difference that 20 years of expertise, stringent quality control, and excellent customer service can make.