摘要
S75Ⅱ型绳索取心钻具在S75钻具基础上对矛头、弹卡机构和到位、堵塞报信机构等进行了改进，使S75Ⅱ型比S75型钻具走位可靠，打捞成功率高，报信正确且性能稳定，倒取岩心方便且安全省时。
Abstract S 75 II wireline coring system is a modified mode! from S 75, has the properties ofreliable positioning, better fishing, correct signaling during core blockage, easy core retieving, andtime saving because its spearhead, latch, positioning and block alarm systems have beem improved.
出处
《探矿工程》
1992年第3期6-7,共2页
Exploration Engineering(Drilling & Tunneling)
