摘要
深井钻井中，转速对钻速的影响非常明显，当转速达到某一值时，就会引起钻柱共振，导致钻速降低。在对钻井钻柱进行力学分析的基础上，建立深井钻柱临界转速的计算模型ｎｃ＝３０Ｐ／。通过某油田Ｘ地区的实际数据计算，表明该地区的转速可再提高１５转／分左右。
In deep drilling, effects of RPM on ROP are very remarkable. When RPM reaches a certain value,drill string resonance will happen, and then ROP will be reduced. After having analysed the mechanics of drill.string, a model nc =30p/ for calculating the critical RPM of deep well drill string is established. And a calculation using real data obtained from X area of some oilfield is done, it shows that the RPM in this area can be increased 15r/min more.
出处
《钻采工艺》
CAS
1999年第4期3-5,共3页
Drilling & Production Technology
关键词
钻柱
转速
振动
深井
计算
钻井
钻柱设计
drill string, RPM, drilling string vibration, drill string mechanics
