Case Study: High-Efficiency Drilling in Yanchang Formation – SD9633 Drill Bit Delivers Breakthrough Penetration in Well Su 76-5-29X
1. Project Background
Client Partner: Shaanxi Hainaisen Petroleum Technology Co., Ltd
Project Site: Drilling operations for Well Su 76-5-29X, targeting the Yanchang Formation. This formation is characterized by tight, highly abrasive lithology, placing stringent demands on drill bit wear resistance and rock-breaking efficiency.
Core Requirements: A drill bit model tailored to the properties of the Yanchang Formation, to achieve high net drilling rates, maximize single-run footage, boost operational efficiency, and reduce overall drilling costs.
2. Solution Matching
Leveraging in-depth analysis of the geological characteristics and drilling conditions of Well Su 76-5-29X, Shaanxi Hainaisen Petroleum Technology Co., Ltd customized and recommended the 8-1/2" SD9633 Drill Bit (Bit Serial No.: 3337) for the client.This model features high-wear-resistant carbide cutters and an optimized cutter placement design, specifically engineered for rock breaking in the tight lithology of the Yanchang Formation. It combines exceptional strength and stability, effectively combating the formation's high abrasiveness to ensure continuous, efficient drilling performance.
3. Field Application Data
| Item | Parameter |
|---|---|
| Drill Bit Model | 8-1/2" SD9633 |
| Bit Serial Number | 3337 |
| Drilling Interval | 670 – 2224 m |
| Drilling Crew No. | 40695 |
| Total Footage | 1554 m |
| Net Drilling Time | 30 h |
| Rate of Penetration (ROP) | 51.8 m/h |
4. Client Testimonial
"During the drilling of the Yanchang Formation in Well Su 76-5-29X, we deployed the 8-1/2" SD9633 drill bit from Shaanxi Hainaisen Petroleum Technology, and the results exceeded all expectations. The bit operated stably throughout the 670–2224 m interval, with no cutter loss or breakage issues. It achieved a total footage of 1554 m in just 30 hours of net drilling time, delivering an ROP of 51.8 m/h. Compared to our previous operations in the same formation, this represents a drilling efficiency improvement of over 30%, drastically shortening the well construction cycle and cutting overall equipment and labor costs."— On-Site Supervisor, Drilling Crew 40695, Well Su 76-5-29X
5. Project Conclusion
In this collaboration, Shaanxi Hainaisen Petroleum Technology Co., Ltd demonstrated its professional expertise in formation analysis and drill bit selection, delivering a highly tailored drilling solution for the client. The outstanding performance of the 8-1/2" SD9633 drill bit in the Yanchang Formation not only validates the product's technical strength but also highlights the company's core advantage in customized drill bit solutions for oil and gas drilling projects. Moving forward, we will continue to optimize product design and service systems, providing efficient, reliable drill bit solutions for more oil and gas drilling projects worldwide, and helping clients maximize drilling profitability.
