8-1/2" SD6545 PDC Bit Field Case: Taiyuan Formation Drilling Performance

Company: Shaanxi Hainaisen Petroleum Technology Co., Ltd

Website: https://www.hnsdrillbit.com

1. Project Background

This case comes from a 40695 well in the Su 76-5-30 block, operated by the 3296 drilling crew. The target interval is the Taiyuan Formation, a typical hard, abrasive formation in the Ordos Basin, which has long been a pain point for onshore drilling operations:

• High rock hardness and strong abrasiveness lead to severe bit wear, frequent tripping, and extended drilling cycles
• Conventional bits struggle to maintain stable penetration rates, resulting in high overall drilling costs
• The 3102-3296m well section requires a bit that can deliver both high ROP and long service life to reduce non-productive time

  

   

2. Bit Selection & Solution

After a detailed technical exchange with the drilling crew, our team recommended the 8-1/2" SD6545 PDC bit, a custom-designed product for hard and abrasive formations:

• Optimized cutter layout with high-impact diamond cutters, enhancing wear resistance and impact strength
• Specially designed hydraulic structure to improve cuttings removal efficiency, reducing balling and re-grinding
• Balanced bit body design to ensure stable drilling in hard formations, minimizing vibration and bit damage

3. On-Site Drilling Data

4. Customer Real Feedback

"We've used bits from multiple suppliers in the Taiyuan Formation before, and the average ROP was only around 4-5 m/h, with frequent bit changes that dragged down the entire drilling schedule. This time, we tried Hainaisen's SD6545 bit, and the effect was far beyond our expectations.

The bit maintained a stable ROP of over 7 m/h throughout the entire 194m interval, with no obvious wear after pulling out. It directly cut our drilling time for this section by nearly 30%, saved 2 tripping operations, and significantly reduced our overall cost.

Hainaisen's technical team also provided on-site follow-up and parameter optimization guidance during the drilling process, which is a level of service we rarely get from other suppliers. We will continue to use their bits in subsequent wells and highly recommend SD6545 to all crews drilling in the Taiyuan Formation."—— On-site Drilling Supervisor, 3296 Crew

5. Case Summary & Value

This field application fully verifies the excellent performance of Hainaisen's SD6545 PDC bit in hard, abrasive formations:

• High ROP: The average mechanical ROP of 7.46 m/h is 50% higher than the conventional bit level in the same formation, greatly improving drilling efficiency
• Long Service Life: Completed 194m footage in one run, reducing tripping frequency and non-productive time
• Cost Reduction: Cut drilling cycle and operating costs significantly, creating tangible economic benefits for customers
• Reliable Service: Full-process technical support ensures smooth on-site operations, solving customers' worries

At Shaanxi Hainaisen Petroleum Technology Co., Ltd, we focus on R&D and manufacturing of high-performance PDC bits for complex formations. We provide customized drilling solutions for global customers, helping you reduce costs and increase efficiency in every well.

For more product details and field cases, visit our official website: https://www.hnsdrillbit.com