黑龙江科学
黑龍江科學
흑룡강과학
Helongjiang Science
2015年
2期
42-42,39
,共2页
小口径岩心钻控%钻孔缩径%处理方法%注意事项
小口徑巖心鑽控%鑽孔縮徑%處理方法%註意事項
소구경암심찬공%찬공축경%처리방법%주의사항
Small diameter core drilling rigs%drilling necking%treatment%precautions
利用小口径岩心钻探工艺,不仅具有较好的矿山钻探开采效果,而且还能够有效降低钻探成本。但在利用小口径岩心钻探工艺进行施工过程中,常发生钻孔缩径问题。应合理进行钻压,控制好转速,以200~300t/s为宜,对泵量进行合理控制,以60~80L/S为宜,做好冲洗液的维护工作,进而降低孔内事故的发生几率。
利用小口徑巖心鑽探工藝,不僅具有較好的礦山鑽探開採效果,而且還能夠有效降低鑽探成本。但在利用小口徑巖心鑽探工藝進行施工過程中,常髮生鑽孔縮徑問題。應閤理進行鑽壓,控製好轉速,以200~300t/s為宜,對泵量進行閤理控製,以60~80L/S為宜,做好遲洗液的維護工作,進而降低孔內事故的髮生幾率。
이용소구경암심찬탐공예,불부구유교호적광산찬탐개채효과,이차환능구유효강저찬탐성본。단재이용소구경암심찬탐공예진행시공과정중,상발생찬공축경문제。응합리진행찬압,공제호전속,이200~300t/s위의,대빙량진행합리공제,이60~80L/S위의,주호충세액적유호공작,진이강저공내사고적발생궤솔。
Th e use of small diameter core drilling process, not only has a better exploitation of the mine drilling results, but also to reduce drilling costs. However, the use of small-diameter core drilling carried out during the construction process, the problem often occurs drilling necking. WOB should make reasonable, 200~300t/sis appropriate good control of the speed of the pump to control the amount of a reasonable, 60~80L/S is appropriate good fluid maintenance work, thereby reducing the incidence of accidents hole.