高效钻杆润滑脂研制及其在川藏铁路勘察中的应用

Development of high efficiency grease for drill pipes andit’s application in SichuanTibet Railway invesgation

摘要:

针对地质钻探深孔或水平孔失返性漏失时钻具磨损及钻进效率低的问题，以白油、钠基稠化剂与粘结性材料等为原料，采用一步法研制了一种高效钻杆润滑脂，并在川藏铁路昌都段定测勘察水平孔现场应用中取得显著效果，有力支撑服务了川藏铁路大位移水平孔施工。室内评价及现场应用结果表明，该润滑脂具有耐低温（-16 ℃）、易涂抹、良好的粘附性与润滑性以及高性价比特点，能长时间保护钻具，而且其润滑效果与国外同类产品相当。

Abstract:

In view of drilling string wear and low drilling efficiency at total loss of return in deep or horizontal geological drilling, a kind of high efficiency drill pipe grease was developed with the one step method with white oil, sodium based thickener and adhesive material as raw materials, and has achieved remarkable results from field use in horizontal holes along the Changdu section of SichuanTibet Railway, which strongly supported the construction of large displacement horizontal holes on the SichuanTibet Railway. Indoor evaluation and application results showed that the grease has low temperature resistance (-16℃), easy application, good adhesion and lubricity, and high cost performance ratio. It can protect drilling tools for a long time, and its lubricating effect can compares to that of foreign products.