明光苏巷石盐钾盐矿区钻孔地层造浆的研究

Study on Stratum Mud Making in Drilling in the Rock Salt and Potash Mine District of Suxiang,Mingguang

粘土侵是地层粘土侵入钻井液使其性能变坏的现象。只要在沉积地层(一般为砂岩、泥岩、页岩、灰岩)中钻进,或多或少都存在粘土侵入钻井液的问题,使其性能变坏。而地层造浆不但解决了粘土侵的问题,同时把粘土侵变废为宝、变害为利,关键问题是什么样的地层可以采用地层造浆。目前国内各个地方都在不自主的使用地层造浆,而对地层造浆的具体研究却相对较少。以明光苏巷石盐钾盐矿区ZK012普查(科研)钻孔为例对地层造浆进行了探讨研究。

Clay invasion is the phenomenon that formation clay invades drilling fluid,leading to performance deterioration of it.As long as drilling in the sedimentary strata（usually sandstone,mudstone,shale and limestone）,there is more or less drilling fluid invasion problems caused by clay,which result is drilling fluid performance deterioration.The stratum mud making solved the clay invasion problem and varied harm into use.The key problem is what kind of formation can be used to make mud.Currently there are involuntary uses of stratum mud making in various places in China,while little specific study on mud making is made.The paper discussed the study on stratum mud making with the case of ZK012 census hole in the rock salt potash mine district of Suxiang,Mingguang.