A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tube well dewatering well completion device and tube well dewatering well completion method
The invention discloses a tube well dewatering well-forming device and a tube well dewatering well-forming method. The tube well dewatering well-forming device comprises a steel sleeve arranged in a tube well hole; the open caisson pipe is arranged in the steel sleeve through a centralizer, the open caisson pipe comprises a solid pipe section, a water filtering pipe section and a sand setting pipe section from top to bottom, a plugging plate is arranged at the bottom of the sand setting pipe section, and a steel wire mesh is bound on the periphery of the water filtering pipe section; the filter material layer is arranged between the steel sleeve and the open caisson pipe, and a ramming and filling clay layer is arranged on the filter material layer; the lower end of the water suction pipe extends into the open caisson pipe, and the upper end of the water suction pipe extends out of the pipe well hole and is connected to a water pump. The steel sleeve is arranged on the periphery of the open caisson pipe, so that it is guaranteed that the open caisson process is not affected by peripheral complex geological conditions, the quality defects such as necking and hole collapse easily occurring in a traditional well completion technology are effectively overcome, and the success rate of one-time well completion and the well completion quality are guaranteed.
本发明公开了一种管井降水成井装置及管井降水成井方法，包括：钢套管，钢套管设于管井孔中；沉井管，沉井管通过扶正器设于钢套管内，沉井管由上至下包括实管段、滤水管段及沉砂管段，沉砂管段的底部设有封堵板，滤水管段的外围绑扎有钢丝网；滤料层，滤料层设于钢套管及沉井管间，滤料层上设有夯填黏土层；以及吸水管，吸水管的下端伸入沉井管内，吸水管的上端伸出管井孔并连接于抽水机上。本发明中于沉井管外围设置钢套管，以保证沉井过程中不受周边复杂地质条件的影响，有效避免在传统成井工艺中易出现的缩颈、塌孔等质量缺陷，保证一次成井的成功率及成井质量。
Tube well dewatering well completion device and tube well dewatering well completion method
The invention discloses a tube well dewatering well-forming device and a tube well dewatering well-forming method. The tube well dewatering well-forming device comprises a steel sleeve arranged in a tube well hole; the open caisson pipe is arranged in the steel sleeve through a centralizer, the open caisson pipe comprises a solid pipe section, a water filtering pipe section and a sand setting pipe section from top to bottom, a plugging plate is arranged at the bottom of the sand setting pipe section, and a steel wire mesh is bound on the periphery of the water filtering pipe section; the filter material layer is arranged between the steel sleeve and the open caisson pipe, and a ramming and filling clay layer is arranged on the filter material layer; the lower end of the water suction pipe extends into the open caisson pipe, and the upper end of the water suction pipe extends out of the pipe well hole and is connected to a water pump. The steel sleeve is arranged on the periphery of the open caisson pipe, so that it is guaranteed that the open caisson process is not affected by peripheral complex geological conditions, the quality defects such as necking and hole collapse easily occurring in a traditional well completion technology are effectively overcome, and the success rate of one-time well completion and the well completion quality are guaranteed.
本发明公开了一种管井降水成井装置及管井降水成井方法，包括：钢套管，钢套管设于管井孔中；沉井管，沉井管通过扶正器设于钢套管内，沉井管由上至下包括实管段、滤水管段及沉砂管段，沉砂管段的底部设有封堵板，滤水管段的外围绑扎有钢丝网；滤料层，滤料层设于钢套管及沉井管间，滤料层上设有夯填黏土层；以及吸水管，吸水管的下端伸入沉井管内，吸水管的上端伸出管井孔并连接于抽水机上。本发明中于沉井管外围设置钢套管，以保证沉井过程中不受周边复杂地质条件的影响，有效避免在传统成井工艺中易出现的缩颈、塌孔等质量缺陷，保证一次成井的成功率及成井质量。
Tube well dewatering well completion device and tube well dewatering well completion method
一种管井降水成井装置及管井降水成井方法
LI HUIXIAN (author) / WANG WEIBO (author) / ZHANG YANMING (author) / ZHANG GUIJUN (author) / GUO ZHIGUO (author)
2022-10-14
Patent
Electronic Resource
Chinese
| European Patent Office | 2023
Dewatering well construction method, dewatering well and dewatering well system
| European Patent Office | 2023