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A platform for research: civil engineering, architecture and urbanism
Drilling construction process and grouting system for strong water burst stratum
The invention discloses a drilling construction process and a grouting system for a strong water burst stratum. The drilling construction process for the strong water burst stratum comprises the following steps that 1, a drilling tool is taken out of a well hole, and then a blowout preventer is used for carrying out sealing treatment on a well mouth of the well hole; 2, quick-acting cement paste is injected into the well hole in a pressed mode, clear water is started to be injected into the well mouth of the well hole in a pressed mode so as to flush the quick-acting cement paste at the well mouth to be diffused downwards, and then pressure building is rapidly carried out in the well hole so as to wait for the quick-acting cement paste to be solidified; 3, after the quick-acting cement paste waits for solidification for 4.5-5.5h; 4, when obvious water burst does not exist in the well hole, the blowout preventer is opened, and the drilling tool is put into the well hole so as to sweep away the quick-acting cement paste in the well hole; 5, the quick-acting cement paste in the well hole is swept away; and 6, after treatment in the step 5, large-specific-gravity slurry is injected into the bottom in the well hole in a pressed mode through the drilling tool until the clear water in the well hole is completely discharged, and the treatment effect is good.
本发明公开了一种强涌水地层的钻探施工工艺及注浆系统，强涌水地层的钻探施工工艺包括如下步骤:步骤1:将钻具从井孔内取出,然后利用防喷器对井孔的井口进行封闭处理；步骤2：向井孔内压注速效水泥浆，并开始向井孔的井口压注清水以将井口处的速效水泥浆冲至向下扩散，然后迅速井孔内进行憋压以候凝速效水泥浆；步骤3：待速效水泥浆候凝4.5‑5.5h后；步骤4：在井孔内不存在明显涌水时，打开防喷器，向井孔内下入钻具以扫除井孔内的速效水泥浆；步骤5：扫除井孔内的速效水泥浆；步骤6：在经步骤5处理后，通过钻具向井孔内底部压注大比重泥浆，直至将井孔内的清水排净即可，其处理效果佳。
Drilling construction process and grouting system for strong water burst stratum
The invention discloses a drilling construction process and a grouting system for a strong water burst stratum. The drilling construction process for the strong water burst stratum comprises the following steps that 1, a drilling tool is taken out of a well hole, and then a blowout preventer is used for carrying out sealing treatment on a well mouth of the well hole; 2, quick-acting cement paste is injected into the well hole in a pressed mode, clear water is started to be injected into the well mouth of the well hole in a pressed mode so as to flush the quick-acting cement paste at the well mouth to be diffused downwards, and then pressure building is rapidly carried out in the well hole so as to wait for the quick-acting cement paste to be solidified; 3, after the quick-acting cement paste waits for solidification for 4.5-5.5h; 4, when obvious water burst does not exist in the well hole, the blowout preventer is opened, and the drilling tool is put into the well hole so as to sweep away the quick-acting cement paste in the well hole; 5, the quick-acting cement paste in the well hole is swept away; and 6, after treatment in the step 5, large-specific-gravity slurry is injected into the bottom in the well hole in a pressed mode through the drilling tool until the clear water in the well hole is completely discharged, and the treatment effect is good.
本发明公开了一种强涌水地层的钻探施工工艺及注浆系统，强涌水地层的钻探施工工艺包括如下步骤:步骤1:将钻具从井孔内取出,然后利用防喷器对井孔的井口进行封闭处理；步骤2：向井孔内压注速效水泥浆，并开始向井孔的井口压注清水以将井口处的速效水泥浆冲至向下扩散，然后迅速井孔内进行憋压以候凝速效水泥浆；步骤3：待速效水泥浆候凝4.5‑5.5h后；步骤4：在井孔内不存在明显涌水时，打开防喷器，向井孔内下入钻具以扫除井孔内的速效水泥浆；步骤5：扫除井孔内的速效水泥浆；步骤6：在经步骤5处理后，通过钻具向井孔内底部压注大比重泥浆，直至将井孔内的清水排净即可，其处理效果佳。
Drilling construction process and grouting system for strong water burst stratum
一种强涌水地层的钻探施工工艺及注浆系统
DU MINGXIN (author) / ZHAO YUNLIANG (author) / HU JIANQING (author) / LI XUNKUI (author) / LIN RUIHUA (author)
2021-09-03
Patent
Electronic Resource
Chinese
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