公开(公告)号：US4079998A

公开(公告)日：1978-03-21

申请号：US736302

申请日：1976-10-28

申请人： Ray Vincent Huff ,  Daniel J. Moynihan

发明人： Ray Vincent Huff ,  Daniel J. Moynihan

IPC分类号： E21B33/12 ,  E21B41/00 ,  E21B43/28 ,  E21B43/29

CPC分类号： E21B43/29 ,  E21B33/12 ,  E21B41/0078 ,  E21B43/28

摘要： A downhole recirculator for injecting two-phase lixiviant from a tubing string into a leaching interval of an in situ mine field injection hole, and for circulating the injected lixiviant within the leaching interval. The recirculator includes a core device which is adapted to be readily inserted or removed from its operating position in a fixture defining the upper limit of the leaching interval. The core device includes an induction valve arrangement whereby a primary flow of two-phase lixiviant supplied from the minefield surface by way of the tubing string induces a secondary flow of lixiviant from regions of the injection hole near the top of the leaching interval. The primary flow two-phase lixiviant is combined with the secondary flow lixiviant and injected to a region near the bottom of the leaching interval to establish a circulatory motion of lixiviant within the leaching interval.

摘要翻译： 一种井下再循环器，用于将两相浸出液从管柱注入到原位矿场注入孔的浸出间隔中，并在浸出间隔内循环注入的浸取物。 再循环器包括一个芯装置，该芯装置适于在定义浸出间隔的上限的夹具中容易地将其从其工作位置插入或移出。 核心装置包括一个进气阀装置，由此通过油管柱从雷区表面供给的两相浸出液的一次流引起从浸出间隔顶部附近的注入孔区域的二次流动。 将主流两相浸出液与二次流浸剂结合并注入到浸出间隔底部附近的区域，以在浸出间隔内建立浸取液的循环运动。