一点法公式在长岭气田的应用及修正  

Application and Correction of Single Point Formula in Changling Gas Field

作　　者：马欣宇[1] 

机构地区：[1]大庆油田有限责任公司测试技术服务分公司,黑龙江大庆163000

出　　处：《石油管材与仪器》2017年第4期78-81,共4页Petroleum Tubular Goods & Instruments

摘　　要：气井无阻流量是确定气井合理产量的重要依据,也是制定开发技术对策的主要考虑因素,研究长岭气田近三年的气井一点法资料,认为现有公式计算的无阻流量不够准确,针对此现象,研究新的公式以期能够达到对该类资料准确分析的目的;通过对一点法公式的剖析,研究了长岭气田7口气井的多点产能试井资料,找出影响无阻流量计算结果的主要参数为产能系数α,并对其进行修正;修正后的产能系数带入一点法的理论公式,得到新的长岭气田的一点法经验公式;通过误差分析,并结合地质及现场情况,得到结论,即新公式所计算的无阻流量更加符合长岭气田实际情况。The absolute open flow of gas wells is not only an important basis to determine the reasonable production of gas wells,but also the main consideration to design the technical measures for the gas field development. The data of gas well single point method in Changling gas field in recent three years is studied,it is found that the absolute open flow calculated by the existing formula is not accurate enough. In review to the phenomenon,a new formula is designed in order to achieve the purpose of accurate analysis of such data. Through the analysis of single point formula,the multi-point productivity test data of seven gas wells in Changling gas field is studied,it is found that the deliverability coefficient α is the main parameter that affects the calculation of the absolute open flow,and then the α is modified. The empirical formula of single point method of the new Changling gas field is obtained by drawing the modified production capacity coefficient into the theoretical formula of single point method. Through the error analysis,combined with geological and field conditions,the conclusion is drawn that the new formula is more consistent with the absolute open flow of Changling gas field.

关 键 词：一点法试井 无阻流量 产能系数 

分 类 号：P631.43[天文地球—地质矿产勘探]