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史深100断块是胜利油田近年来新开发的重点探区之一,经过多年的开发,原有的地层压力系统已被破坏。同时,由于勘探开发的需要,井越来越深。随着地下情况的日趋复杂和对固井质量要求的提高,如何控制高温高压条件下水泥浆的性能,有效地封隔高压油气水层;如何有效的防止环空气窜的发生和高渗透地层水泥浆的漏失导致低返;如何提高水泥石在两个界面的胶结强度等等.解决这一系列问题的唯一有效途径就是改进固井工艺技术,从而达到保证固井质量、保护油气层和提高采收率的目的。本文根据固井现场的实际情况,就固井工具的设计开发、工艺程序的改进和水泥浆技术的优化等方面进行阐述,提出了一整套成熟的综合固井技术,并在施工作业中得到了广泛的应用。统计资料表明:该技术不但保证了固井质量,满足了勘探开发的需要,并取得了很好的社会和经济效益。
The Shishen-100 fault block is one of the newly developed key exploration areas of Shengli Oilfield in recent years. After years of development, the original formation pressure system has been destroyed. At the same time, due to the needs of exploration and development, wells are getting deeper and deeper. How to control the performance of grout under high temperature and high pressure and effectively seal the high pressure oil-gas water layer with the increasing complexity of underground conditions and the improvement of the cementing quality requirements; how to effectively prevent the occurrence of ring air channeling and high permeability formation grout Of the loss led to low return; how to improve the cementation strength of cement stone in the two interfaces, etc. The only effective way to solve this series of problems is to improve the cementing technology so as to ensure the cementing quality, protect the hydrocarbon reservoir and enhance the recovery Rate the purpose. Based on the actual situation of cementing site, this paper elaborates on the design and development of cementing tools, the improvement of process procedures and the optimization of cement slurry technology. A set of mature integrated cementing technology is put forward and obtained in the construction operation Wide range of applications. Statistics show that: This technology not only guarantees the cementing quality, meets the exploration and development needs, and has achieved good social and economic benefits.