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随着稠油水平井数量的不断增加,其水平井段筛管结垢和堵塞的现象已越来越严重,现场急需一种切实可行的解堵措施,来改善水平井段的泥浆污染及筛管结垢堵塞现象,从而提高和改善水平井段渗流能力。本文针对上述问题提出了水平井高压旋流解堵工艺技术,以实现即能对筛管的进行全方位解堵,又能避免泥浆的沉积,从而达到解堵的目的。该技术具有效率高、成本低、无污染等优点。随着辽河油田水平井数量的增长、开采时间的延长,作为一种新型的水平井近井地带解堵方法,该技术具有广阔的应用前景。
With the increase of the number of horizontal wells in heavy oil wells, the scaling and plugging of screen sections in horizontal sections have become more and more serious. A practical solution to plugging is urgently needed in the field to improve mud pollution in horizontal sections and screen Scale blocking phenomenon, thereby improving and improving the horizontal well section seepage capacity. In view of the above problems, this paper puts forward the technology of horizontal well high pressure swirl plugging to achieve the purpose of unblocking sieve pipe in all directions and avoiding the sedimentation of mud so as to achieve the purpose of plugging. The technology has the advantages of high efficiency, low cost and no pollution. With the increase of the number of horizontal wells in Liaohe Oilfield and the prolongation of mining time, the technology has a broad application prospect as a new method of plugging near horizontal wells in horizontal wells.