肯尼亚高温地热井钻头使用问题探讨

Discussion on the Use of Drill in Kenya High Temperature Geothermal Well

长城钻探肯尼亚项目部钻头早期失效的原因与钻头质量无关,主要原因是地质构造不同造成井与井之间地层岩性和温度的差异,油用牙轮钻头现有技术无法完全满足特定条件下高温地热井的钻井需求。在某些地热井下部地层,地温超过钻头材料所能承受的极限,导致牙轮钻头使用寿命急剧下降。

Great Wall drilling projects in Kenya bit early failure reason has nothing to do with the drilling quality, the main reasotl is caused by different geological structure well and well formation lithology and the temperature difference between oil with a cone bit existing technology cannot completely meet the demand of high temperature geothermal well drilling under certain conditions. Geothermal Wells in some lower strata, ground temperature over bit material can withstand the limit, lead to a sharp drop in the service life of the roller bit.