| 摘要: |
| 以钻进趋势角作为评价指标,对使用随钻扩眼工具进行钻进时的钻进趋势进行了分析。结果表明:对于偏心扩眼 钻头,钻压分配比在一定条件下能够改变钻具的钻进趋势，因此在钻具组合设计中不能按照常规钻头来对待;对于钻具 组合设计，将扩眼体位于井眼高边时是否满足防斜要求作为设计依据;对于独立结构扩眼器，钻压分配比的变化通常对 钻具钻进趋势的影响较小，独立结构扩眼器的防斜主要依赖于领眼钻头与扩眼器之间稳定器位置的调节。 |
| 关键词: 随钻扩眼工具；底部钻具组合 .钻进趋势；参数设计 |
| DOI： |
| 分类号: |
| 基金项目:国家“863”计划项目(2006AA06A109) |
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| Influencing factors of drilling tendency in process of reaming while drilling |
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XIA Yan1,2,GUAN Zhi-chuan2
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(1. Drilling Research Institute, PetroChina, Beijing 100195, China ;2. College of Petroleum Engineering in China University of Petroleum，Dongying 257061，China)
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| Abstract: |
| Taking drilling tendency angles as evaluation parameters, the drilling tendencies of reaming while drilling (RWD) tools were analyzed. The results show that for eccentric reaming bits, the ratio of weight on bit (WOB ) may have a great effect on the drilling tendency in certain conditions, and RWD tools can not be treated as the normal bit in the process of bottom hole assembly (BHA) design. And it can be the design foundation that the design parameters of BHA can meet the demands of borehole inclination when the reaming body is on the upside of borehole. For the RWD tools with independent reaming structure, the ratio of WOB has less effect on the drilling tendency, and the borehole inclination control mostly depends on the stabilizers position. |
| Key words: reaming while drilling tools bottom hole assembly drilling tendency parameters design |
