甘陕工区钻井防漏堵漏技术分析与建议

Analysis on Drilling Plugging Technology in Shaanxi and Gansu Work Areas and the Suggestions

随着勘探开发区域扩展,甘陕工区防漏堵漏所面临的主要问题是地质情况的复杂性和不确定性。简单、方便、直观地实时监测漏失层,及时对地层压力、强度及漏失可能性做出评价,实施简单有效的堵漏措施已成为解决问题的关键。目前普遍应用的桥浆堵漏技术还无法完全满足防漏堵漏和保护储层的目的,还需要应用其他堵漏工艺技术以便应对越来越复杂的井漏事故,减少或消除由于井漏造成的复杂情况、时间的延误和重大经济损失。分析了甘陕工区钻井漏失原因,提出了防漏堵漏技术措施。

With the exploration region expanding, the main problems facing to leakage plugging in Shaanxi and Gansu work areas are the complexity and uncertainty of the geological conditions. Simple, convenient and intuitive real-time monitoring on the leakage layer; in-time evaluation to formation pressure, strength and leakage possibility and the implementation of simple and effective plugging measures have become the key to solve these difficult problems. The bridging mud technology widely used at present can not completely meet the requirements of leakage plugging and reservoir protection. Analysis was made on the drilling leakage causes in Shaanxi and Gansu work areas with the technical measures of lost circulation control.