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A platform for research: civil engineering, architecture and urbanism
Precipitation well casing installation method and well completion device
The invention discloses a dewatering well casing mounting method and a well completion device, and the dewatering well casing mounting method comprises the following steps: hoisting a well casing: after a well hole is formed, hoisting the well casing; placing a well casing in place; the well casing sinks under the action of self weight, and meanwhile the mud permeates into the well casing through a dense mesh on the well casing; water injection sinking, wherein water is injected into the well hole, and the well casing continuously sinks; high-pressure water injection sinking, wherein water is injected into the well hole through high pressure, and the well casing continuously sinks; filling a filter material: filling the filter material between the well casing and the well hole; clay filling: filling clay above the filter material; water injection is stopped, and well casing installation is completed. The well completion device comprises a solid pipe, a filter pipe, a pump, a dense screen, a filler layer and at least two water injection channels, the solid pipe and the filter pipe are connected to form a well pipe, the well pipe is arranged in a drilled well hole, the dense screen is arranged on the outer wall of the filter pipe, the two water injection channels are arranged on the outer side of the well pipe, the pump is connected with the first ends of the water injection channels, and the filler layer is arranged between the well pipe and the well hole.
本申请公开了一种降水井井管安装方法及成井装置，降水井井管安装方法包括如下步骤：起吊井管：当井孔设置好后，将井管吊起；井管就位；自重下沉：井管在自重作用下下沉，同时泥浆通过井管上的密目网渗入井管内；注水下沉：向井孔内注水，井管继续下沉；高压注水下沉：通过高压向井孔内注水，井管继续下沉；填滤料：将滤料填入井管与井孔之间；填黏土：在滤料上方填入黏土；停止注水，完成井管安装。成井装置，包括：实管、滤管、泵、密目网、填料层和至少两个注水通道，实管与滤管连接形成井管，井管设置于打好的井孔内，密目网设置于滤管的外壁上，两个注水通道设置于井管的外侧，泵与注水通道的第一端连接，填料层设置于井管与井孔之间。
Precipitation well casing installation method and well completion device
The invention discloses a dewatering well casing mounting method and a well completion device, and the dewatering well casing mounting method comprises the following steps: hoisting a well casing: after a well hole is formed, hoisting the well casing; placing a well casing in place; the well casing sinks under the action of self weight, and meanwhile the mud permeates into the well casing through a dense mesh on the well casing; water injection sinking, wherein water is injected into the well hole, and the well casing continuously sinks; high-pressure water injection sinking, wherein water is injected into the well hole through high pressure, and the well casing continuously sinks; filling a filter material: filling the filter material between the well casing and the well hole; clay filling: filling clay above the filter material; water injection is stopped, and well casing installation is completed. The well completion device comprises a solid pipe, a filter pipe, a pump, a dense screen, a filler layer and at least two water injection channels, the solid pipe and the filter pipe are connected to form a well pipe, the well pipe is arranged in a drilled well hole, the dense screen is arranged on the outer wall of the filter pipe, the two water injection channels are arranged on the outer side of the well pipe, the pump is connected with the first ends of the water injection channels, and the filler layer is arranged between the well pipe and the well hole.
本申请公开了一种降水井井管安装方法及成井装置，降水井井管安装方法包括如下步骤：起吊井管：当井孔设置好后，将井管吊起；井管就位；自重下沉：井管在自重作用下下沉，同时泥浆通过井管上的密目网渗入井管内；注水下沉：向井孔内注水，井管继续下沉；高压注水下沉：通过高压向井孔内注水，井管继续下沉；填滤料：将滤料填入井管与井孔之间；填黏土：在滤料上方填入黏土；停止注水，完成井管安装。成井装置，包括：实管、滤管、泵、密目网、填料层和至少两个注水通道，实管与滤管连接形成井管，井管设置于打好的井孔内，密目网设置于滤管的外壁上，两个注水通道设置于井管的外侧，泵与注水通道的第一端连接，填料层设置于井管与井孔之间。
Precipitation well casing installation method and well completion device
一种降水井井管安装方法及成井装置
LI SHENGLIN (author) / WANG LEI (author) / JIA TAO (author) / LIU LINGYUN (author) / LI JING (author)
2023-05-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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