鄂尔多斯盆地长北气田钻井工程项目后评价

以鄂尔多斯盆地长北气田为例，对钻井工程项目进行了详细的后评价分析。概述了长北气田钻井工程项目，对长北气田钻井工程方案设计和钻井工程实施效果两个阶段的工作进行了项目后评价；通过采用定量和定性相结合的方式，利用前后对比法，将项目前期的可行性研究和预测结论等与项目的实际运行结果相比较，对比了符合程度，进行了原因分析。评价认为，长北气田井的设计合理可行，方案设计思路正确，对钻井施工中暴露出来的技术风险有一定的预见性，对地质复杂情况和技术难点有一定认识；通过井身剖面优化、钻头优选、钻具组合优化、钻井液体系优化等技术，对钻井工程设计技术方案进行了优化完善，钻井技术经济指标较高，工程质量能满足长北气田开发需要。 

Post-Evaluation of Drilling Projects in Changbei Gas Field,Ordos Basin

The detailed post-evaluation in drilling projects was conducted using Changbei Gas Field in Ordos Basin as an example.The drilling engineering design and drilling implementation were post evaluated.Through the combination of quantitative and qualitative methods,the project pre-feasibility study and prediction were compared with actual results.The degree of agreement was compared and the reason was analyzed.The results show that the design of Changbei Gas Field is reasonable and feasible;the design conceptio...