發(fā)布時間：2018-05-18 21:04

  本文選題：固井 + 水竄　； 參考：《鉆井液與完井液》2017年04期

【摘要】：固井水竄問題是各油田普遍存在的技術(shù)難題,目前缺乏有效的解決辦法。針對以上問題,從水泥漿體系出發(fā),首先進行了防水竄材料的結(jié)構(gòu)設(shè)計,然后根據(jù)結(jié)構(gòu)設(shè)計,篩選出相應(yīng)的防水竄原材料,并通過對其合理的復(fù)配研究,制備出了一種新型固井用防水竄材料。實驗根據(jù)固井不同階段的水竄機理,采用相應(yīng)的方式對該材料的防水竄效果進行了評價,結(jié)果顯示開發(fā)的防水竄材料可增加水泥漿內(nèi)部結(jié)構(gòu),縮短靜膠凝過渡時間,避免水泥石收縮,從而避免水泥漿在不同階段發(fā)生水竄。另外,綜合評價結(jié)果表明,新型固井防水竄材料可縮短稠化時間、增加水泥石強度,改善水泥漿穩(wěn)定性,且對水泥漿稠化、流變、失水等性能無不良影響,綜合性能良好。
[Abstract]:The problem of cementing water channeling is a common technical problem in various oilfields, and there is a lack of effective solution at present. In view of the above problems, starting from the cement slurry system, the structural design of the waterproof channeling material is first carried out, and then the corresponding waterproof channeling raw materials are screened according to the structural design, and the reasonable compound research is carried out. A new waterproof material for well cementing was prepared. According to the mechanism of water channeling in different stages of cementing, the waterproofing channeling effect of this material is evaluated in a corresponding way. The results show that the developed waterproof channeling material can increase the internal structure of cement slurry and shorten the transition time of static cementing. Avoid shrinkage of cement stone and avoid water channeling in different stages of cement slurry. In addition, the comprehensive evaluation results show that the new cementing waterproof and channeling material can shorten the thickening time, increase the strength of cement stone, improve the stability of cement slurry, and have no adverse effect on the properties of cement slurry, such as thickening, rheology and water loss, and the comprehensive performance is good.
【作者單位】： 中國石油集團海洋工程有限公司渤星公司;西部鉆探青海鉆井公司;
【分類號】：TE256

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本文編號：1907201