漏水钻孔止水骨料滤截装置制造方法及图纸

一种漏水钻孔止水骨料滤截装置，它由固定套管、在套管外表焊接着一级骨料滤截盘、骨料滤截盘的漏石孔径为5mm，从一级骨料滤截盘下檐相距4m，焊接着二级骨料滤截盘，骨料滤截盘的过料孔径为mm、二级骨料滤截盘的下檐相距10m焊接着三级骨料滤截盘，骨料滤截盘的过料孔径为10mm。堵漏用的止水骨料是由4mm至10mm不同直径不同形状的石块制成。骨料滤截盘的外径比漏水处钻孔孔径缩小一级，可以实现顺利下入钻孔内，能起到所下止水骨料准确地挡在完整的隔水岩层位置。所述套管长度，是漏水岩层长度的1.5倍，保障承受钻孔漏水处含水层的水压，并保证止水后承压钻孔的安全。漏水钻孔止水骨料滤截装置的位置，下到漏水点以下10m处。

Water leakage drilling water stopping aggregate filtering and cutting device

A Water Leakage drilling sealing cutting device which is composed of aggregate filter, fixed in the casing casing, a welding appearance filter plate, filter aggregate aggregate cross cutting plate leakage stone aperture of 5mm, from the level of aggregate filter cutting plate under the eaves away from the 4m, welded with two aggregate cut filter plate, feeding hole aggregate filter cut wheel diameter is mm and two grade aggregate filter plate under eaves cut apart 10m welded with three aggregate cut filter plate, filter plate feeding aggregate cross-sectional diameter is 10mm. The sealing aggregate used for plugging is made of stones of different diameters and shapes from 4mm to 10mm. The outer diameter of the aggregate filter plate is smaller than that of the water leakage hole, so that the drilling hole can be smoothly lowered into the borehole, and the water stopping aggregate can be accurately positioned in the whole waterproof rock stratum position. The length of the casing is 1.5 times as long as the length of the leaking rock layer, and the utility model can ensure the water pressure of the aquifer of the leaking water at the drilling hole and ensure the safety of the pressure drilling hole after stopping the water. Water leakage, drilling, water stopping, aggregate, filter section, position, down to leakage point 10m below.

【技术实现步骤摘要】
漏水钻孔止水骨料滤截装置
本专利技术涉及煤矿水文地质勘探领域。
技术介绍
奥陶系巨厚石灰岩因其岩溶裂隙发育，接受大气降水补给充分，动、静储量丰富，属极强富水性承压含水层，常为地区的主要供水水源。地面奥灰水源钻孔施工通过煤矿采空区时，未及时对采空区进行隔离处理或处理不当，钻揭含水层后往往发生漏水问题，由于钻穿地层工程地质条件的特殊性，供水含水层又具有水压高、水量大、流速快的特点，使水源钻孔通过煤矿采空区漏水处理尤为困难。而奥灰强承压含水层水通过水源钻孔沿采空区参与生产矿井充水，加重排水负担，且随高水压对孔壁的不断冲刷破坏，极易造成突水事故，严重危及矿井安全。漏水钻孔如不及时处理或处理不彻底，不单造成地下水资源的浪费，还会使供水水源不足，轻则会因孔内供水位加深而增加取水杨程、加大供水费用，重则导致矿井水害事故。目前常用的堵漏方法之一：是在钻孔内利用橡胶压缩塞进行止水，然后投石子，利用石子将水压住，再进行注水泥浆封孔；通过井下涌水量观测确定堵水成功后，再进一步下套管、注浆，并扫孔恢复水源钻孔。但此方案的缺点：一是钻孔出水部位不明确，漏水通道的层位及个数不清，采用下橡胶塞的方法很难有效堵住多本文档来自技高网...

【技术保护点】
一种漏水钻孔止水骨料滤截装置，它由固定套管、在套管外表焊接一级骨料滤截盘、骨料滤截盘的漏石孔径为5mm，从一级骨料滤截盘下檐相距4m，焊接着二级骨料滤截盘，骨料滤截盘的过料孔径为8mm、二级骨料滤截盘的下檐相距10m焊接着三级骨料滤截盘，骨料滤截盘的过料孔径为10mm。

【技术特征摘要】
1.一种漏水钻孔止水骨料滤截装置，它由固定套管、在套管外表焊接一级骨料滤截盘、骨料滤截盘的漏石孔径为5mm，从一级骨料滤截盘下檐相距4m，焊接着二级骨料滤截盘，骨料滤截盘的过料孔径为8mm、二级骨料滤截盘的下檐相距10m焊接着三级骨料滤截盘，骨料滤截盘的过料孔径为10mm。2.按照权利要求1所述的漏水钻孔止水骨料滤截装置，其特征在...

【专利技术属性】
技术研发人员：田茂虎，马光军，王铁松，孙克，
申请(专利权)人：山东新河矿业有限公司，
类型：新型
国别省市：山东,37