论文部分内容阅读
用生鐵塊採取岩心的方法,是苏联的先進經驗之一。在我隊經過試用後,卡塞效果良好。茲就我們的一點經驗介紹如下: 一、生鐵塊的選擇及其规格: 凡具有较堅硬而脆的生鐵,都適於製成卡塞物。因為這種生鐵旣易砸碎,而卡塞時又堅固。為了節約鋼鐵,可以採用報廢的生鐵來製作卡塞物,如廢皮帶輪、鐵管、暖氣包等。生鐵的塊度是根據岩心與鑽頭間隙的大小而砸成大、中、小三种不同的规格。二、使用方法: 停止鑽進時,將井內鑽具稍微提昇,使鑽頭離開井底,用大水量洗井約4～5分鐘。之後,停止水泵送水,根據岩心與鑽頭間隙
The method of taking a core of cast iron is one of the advanced experiences of the Soviet Union. After my team after trial, the jamming effect is good. Here is a little experience we introduce as follows: First, the choice of pig iron and its specifications: Where have a more hard and brittle pig iron, are suitable for making stuck stuff. Because this pig iron 旣 easy to smash, and stuck strong. In order to save steel, scrapped pig iron can be used to make stuck objects, such as scrap belts, iron pipes, and heating bags. Pig iron block size is based on the size of the core and drill gap smashed into large, medium and small three different specifications. Second, the use of methods: stop drilling, the borehole drilling a little upgrade, leaving the drill bit off the well, with a large amount of water wash wells for about 4 to 5 minutes. After that, stop the pump to send water, according to the core and bit gap