长宁区块目标法优化钻井技术

OBJECTIVE METHOD USED TO IMPROVE DRILLING AT CHANGNING BLOCK

长宁区块页岩气勘探开发是国家"十二五"规划的重点项目,长宁H3平台是中国第一个页岩气平台井。在页岩气钻井中,由于每口井、每个平台投资巨大,因此总结出合理高效的提速方法尤为重要。通过分析该平台每口井的钻井参数并加以研究,从中总结出一套合理的钻井参数以减少钻井作业中起下钻趟数,提高行程钻速的数学模型,从而最终达到用理论来指导实践,帮助长宁区块页岩气钻井平台减少投入,增加产出的目的。

Shale gas exploration and development at Changning block a key project of the national ' 12 th Five-Year' plan.Cliangning H3 platform is the first Chinese shale gas drilling platform.In shale gas drilling,the investment on each well or each platform is huge,to find a reasonable effective ROP improvement method is particularly important.By studying the drilling parameters of each well on this platform,a set of reasonable drilling parameters were determined to reduce trips and a model set up to improve ROP.Ultimately the theory can be used to guide actual practice,helping to reduce investment on shale gas drilling platforms at Cliangning block,and increase output.