石油钻采工艺Issue(5)：63-67,5.DOI:10.13639/j.odpt.2015.05.016
胜利油田东营北带砂砾岩体PDC钻头个性化设计与应用
Individual design and application of PDC bit for glutenite in Shengli Oilifeld in the northern zone of Dongying
刘天科 1刘成贵 1刘湘华 1李文明 1路峰 1李延伟1
作者信息
- 1. 胜利石油管理局黄河钻井总公司，山东东营 257064
- 折叠
摘要
Abstract
In view of the technical challenges like strong abrasiveness of rocks in lower glutenite formations of Shasi Section in Fengshen-1 Block and Yan-227 Block of Shengli Oilifeld in the northern zone of Dongying, poor drillability, low ROP and short life of drilling bits, the individual design of rotational lfow PDC bits and their application research were carried out. Through indoor experiment, the type of PDC cutting teeth suitable for such formations was selected.The design of the crown proifle of the bit, its cutting structure and the caster angle of cutting teeth was optimized.A rotary jet nozzle was developed, and a new PDC bit was designed and trial-produced which breaks the rocks jointly by hydraulic and mechanical forces. A drilling experiment was conducted in glutenite formation in Ping 1-Well of Fengshen-1 Block. Compared with other types of PDC bits, its ROP is increased by 46.8%, and footage of single bit is up by 69.6%. Compared with roller bit, its ROP is increased by 48.1% and footage of single bit is up by 156.5%. Promotion and application of this bit in glutenite interval in Well Yan 227 also result in signiifcant speeding effectiveness, for example, the ROP was up by 26% and the average footage of single bit was up by 102 m. The research ifndings are of some guiding signiifcance to the individual design of PDC bits and are of promotion value for accelerating in formations with strong abrasiveness.关键词
砂砾岩体/PDC钻头/个性化设计/旋转射流/切削齿Key words
glutenite/PDC bit/individual design/rotary jet/cutting tooth分类
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刘天科,刘成贵,刘湘华,李文明,路峰,李延伟..胜利油田东营北带砂砾岩体PDC钻头个性化设计与应用[J].石油钻采工艺,2015,(5):63-67,5.
