基于DEA的排水采气工艺优选研究

针对东海合作区积液气井排采工艺优选问题，提出了采用基于DEA（data envelopment analysis）的措施效果评价模型优选排采工艺的方法。方法中针对排采措施效果评价特点，从技术和经济角度选取3项输入指标、5项输出指标建立评价指标体系，选用具有非阿基米德无穷小量的C2R模型及超效率DEA模型对C11井排采工艺进行了优选。通过计算，优选气举工艺对C11井进行排采，并结合实际生产数据对DEA优选模型进行了验证。结果表明，该方法评价结果客观可靠，可操作性强，可作为现场排采工艺优选的有效手段。

Research on Optimal Selection of Drainage Gas Recovery Technology Based on DEA

In order to select the optimal drainage gas recovery technology for liquid loading gas wells in the East China Sea Cooperation Zone, a new method is presented to tackle with this problem by using measure effect evaluation model based on DEA (data envelopment analysis). In this method, according to the evaluation characteristics of the effect of drainage and recovery measures, three input indexes and five output indexes are selected from the technical and economic perspectives to establish the evaluation index system. Then the C2R model with non-Archimedes infinite small quantity and super-efficiency DEA model are used to select the optimal drainage gas recovery technology for well C11. Through calculation, gas lift method is selected as the optimal drainage gas recovery technology for well C11, and the DEA model is also verified by actual production data. The result shows that this method can be used as an effective means to select the optimal drainage gas recovery technology on-site due to its objective and strong operability in reliable evaluation results.