| Abstract |
The publication describes present practices of making injection wells for in situ uranium leaching. Casings, screens, drilling fluids, coring, logging, cementing, and developing are discussed. The aim is to aid those who are starting an in situ leaching operation. Improper choices of materials or techniques can result in wells which are either useless or have an undesirably high resistance to injection. Important factors include careful selection of screen slot size, use of logs for choosing the cementing basket depth, proper cementing techniques, and careful choice, use, and flushing of drilling fluids. The information was obtained through observation of well construction and through discussions with in situ leaching companies, drillers, and suppliers. |
