火山岩地层钻进金刚石钻头寿命与效率的探讨

Discussion on Service Life and Efficiency of Diamond Bit Drilling in Volcanic Strata

摘要:

火山岩地层岩性变化大，岩石的物理力学性质也差异极大，根据岩石的物理力学性质选用相应的金刚石钻头参数，能较大的提高金刚石钻头的使用寿命和钻进效率，从而获得较好的钻进效果和经济效益。从常见的几种火山岩地层中使用不同参数的金刚石钻头的使用寿命和钻进效率进行了统计和分析，提出了与地层相适宜的金刚石钻头技术参数的选用原则与选用方法。

Abstract:

Lithology changes obviously in volcanic strata and the physic mechanics character of rock differs a lot. Corresponding diamond bit parameters are selected according to the physic mechanics character of rock, the service life and drilling efficiency can be greatly improved with good drilling effect and economic benefit. The paper illustrated the statistic and analysis on the service life and drilling efficiency of diamond bits with different drilling parameters in several volcanic strata, and put forward the selection principles and selection methods of diamond bit technical parameters suitable for volcanic strata.