刀翼式孕镶金刚石钻头设计及在哈山101井的应用

The Design of Blade Type Diamond-Impregnated Bit and It’s Application in Well Hashan 101

张进双 张增宝 王学才

ZHANG Jinshuang ZHANG Zengbao WANG Xuecai

中国石化石油工程技术研究院，北京 100101 中国石化胜利油田分公司油气勘探管理中心，山东东营 257000 中石化胜利石油工程有限公司塔里木分公司，山东东营 257000

Sinopec Research Institute of Petroleum Engineering, Beijing, 100101, China Oil & Gas Exploration and Management Center, Sinopec Shengli Oilfield Company, Dongying, Shandong, 257000, China Tarim Drilling Company, Sinopec Shengli Oilfield Service Corporation,Dongying, Shandong,257000, China

为提高准噶尔盆地哈山区块火山岩地层机械钻速、增大单只钻头进尺、降低井眼失稳掉块卡钻风险，设计了刀翼式孕镶金刚石钻头。在分析地层岩石的力学特性的基础上，研发了新型胎体合金材料，以提高钻头研磨性；镶嵌孕镶切削块，以增强钻头破岩能力；优化设计了刀翼式孕镶金刚石钻头的结构和防卡流道，防止钻头卡死。研究发现，超细合金材料相互联结成键、牢固烧结，钻头胎体力学性能提高30%以上。刀翼式孕镶金刚石钻头配合高速大扭矩螺杆钻具在哈山101井火山岩地层进行了应用，单只钻头进尺增大4倍，机械钻速提高54.3%。研究结果表明，刀翼式孕镶金刚石钻头可以降低掉块卡钻风险，可实现火山岩地层安全高效钻进。

In order to improve the ROP in the volcanic rock formation of the Hashan Area in Junggar Basin, increase the footage of single drill bit, and reduce the risks of wellbore instability and caving, the bit design for rapid drilling was carried out. The mechanical performance of the formation rock was analyzed by a full-scale coring indoor test. On this basis, a new matrix alloy material was developed to improve the grinding performance of the bit. Then, the impregnated cutting block was used to enhance the rock breaking ability, and the blade-type impregnated bit structure and the anti-sticking flow path were optimized. The caving falling into the oblique chip flute could be pushed upward to prevent the bit from being stuck. It was found that the ultra-fine alloy materials could be bonded to each other to form a firm adhesion, and the mechanical performance of bit matrix improved by more than 30%. The blade-type impregnated drill bit was used in the volcanic rock formation of Well Hashan 101 associated with a high-speed and high-torque screw power drill, the single bit footage was increased by 4 times and the ROP was increased by 54.3%. This technology also effectively reduced the risk of caving and sticking, and became an effective technical measure for safe and efficient drilling in such formations.

国家科技重大专项“大型油气田及煤层气开发”之课题“海相碳酸盐岩超深油气井关键工程技术”（编号：2017ZX05005-005）资助

https://doi.org/10.11911/syztjs.2019083