CAJ | 학술논문

在钻探施工的下套管固井、水泥封孔等作业中,不可避免地会发生水泥对钻井液的污染,使钻井液性能发生改变,不能满足正常钻进工作需要.针对这一问题,从水泥水化机理出发,结合粘土颗粒扩散双电层理论分析了水泥对钻井液污染的,并针对其钙侵特点提出一套行之有效的解决方案,对以后的水泥固井、水泥封孔施工的钻井液处理和维护有借鉴意义.
재찬탐시공적하투관고정、수니봉공등작업중,불가피면지회발생수니대찬정액적오염,사찬정액성능발생개변,불능만족정상찬진공작수요.침대저일문제,종수니수화궤리출발,결합점토과립확산쌍전층이론분석료수니대찬정액오염적,병침대기개침특점제출일투행지유효적해결방안,대이후적수니고정、수니봉공시공적찬정액처리화유호유차감의의.
In the operation of casing cementing and hole cement sealing of drilling construction, the cement pollution to drilling fluid is inevitable, which will change the property of the drilling fluid to affect the drilling requirement.According to this problem, by the hydration mechanism of cement and based on the theory of electric double layer produced by clay par-ticle dispersion, the paper analyzed the causes of cement pollution to drilling fluid and put forward a set of effective solution.