运用划眼技术解决SH1井井下复杂情况探讨

钻井技术或措施的选择是关系到钻井成功和节约钻井成本的重要环节,方案有时有几种,但选择不当,会造成钻井的失败或成本大大增加,如何确定方案要根据现场的具体情况。介绍了SH1井在深部起下钻遇阻,甚至难以顺利施工时面临是填井还是划眼的措施选择,经过现场技术组的共同研究,确定了划眼方案,并利用综合录井提供的参数,顺利地解决了井下复杂情况,效益显著。通过该综合技术的实施,为现场技术人员更好地处理复杂情况提供了一种有效的方法,学会了如何利用测录井提供的参数帮助钻井技术人员解决类似问题,收益远远大于该技术成功的本身。

Discussions on the Solution to the Downhole Complexity of SHI Well by the Use of Hole Redressing Technology

The choice of drilling techniques or measures is the crucial link that is closely related to the success of well drilling and the reduction of drilling cost.Sometimes there are several plans,the incorrect choice of which can result in the failure of well drilling and the increase of cost.Thus how to determine the plan should be decided according to the on-site concrete situation.SH1 Well is introduced as an example in the paper.This well was faced with the problem of whether to fill the well or do redressing while meeting tight point at the drilling round trip in deep layer,and had difficulty in construction.Then through the common discusion of on-site technological group,the plan of hole redressing was determined and successfully used in solving the downhole complexity under the help of parameters offered by comprehensive logging,showing obvious benefits.Because of the enforcement of this comprehensive technique,one effective method is provided for on-site workers to deal with complex situation.Meanwhile,how to utilize the parameters given by well logging to help drilling technicians solve similar problems is also obtained from this practice of the technique.All in all,benefit is much larger than the success of technology itself.