[1]邓东东,王玉善,高磊,等. 利用改进地层系数法预测苏X区块气井产能[J].油气井测试,2021,30(03):1-6.[doi:10.19680/j.cnki.1004-4388.2021.03.001]
　DENG Dongdong,WANG Yushan,GAO Lei,et al. Prediction of gas well productivity in block Su X by improved formation coefficient method[J].Well Testing,2021,30(03):1-6.[doi:10.19680/j.cnki.1004-4388.2021.03.001]
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 利用改进地层系数法预测苏X区块气井产能()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
30卷
期数:
2021年03期
页码:
1-6
栏目:
出版日期:
2021-06-25

文章信息/Info

Title:
 Prediction of gas well productivity in block Su X by improved formation coefficient method
文章编号:
1004-4388(2021)03-0001-06
作者:
 邓东东; 王玉善; 高磊; 李国良; 房金伟; 张洁
 中国石油集团渤海钻探工程有限公司油气合作开发分公司 天津 300457
Author(s):
 DENG Dongdong;  WANG Yushan;  GAO Lei;  LI Guoliang;  FANG Jinwei;  ZHANG Jie
 

Oil & Gas Cooperation and Development Company, CNPC Bohai Drilling Engineering Company, Tianjin 300457,

China

关键词:
 ; 低渗透气井;  产能影响因素;  未压裂;  相对渗透率;  地层系数;  束缚水;  残余气;  产能预测
Keywords:
 ; 

low permeability gas well;  productivity influencing factors;  unfractured;  relative permeability; 

formation coefficient;  irreducible water;  residual gas;  productivity prediction

分类号:
TE353
DOI:
10.19680/j.cnki.1004-4388.2021.03.001
文献标志码:
A
摘要:
 

苏里格气田预测气井产能的方法未考虑高含水饱和度对气井产能的影响，导致产能预测结果偏差大。以气井产能方程为基础，研究影响产能因素，综合

分析各参数判断影响未压裂投产井产能的主要因素为地层系数，为减小束缚水饱和度和残余气饱和度对储层评价的影响，提出改进地层系数法预测产能。该方法选用pirson相

对渗透率模型，利用实验数据确定模型经验参数，求取归一化相对渗透率，结合有效气层厚度，得到基于归一化相对渗透率的改进地层系数M，建立M预测产能模型。经苏

X区块苏X-20-9X井及苏X-11-22X井进行验证，利用改进的地层系数法预测的无阻流量与试气无阻流量符合率在82%以上，符合气井的实际生产规律。该方法所需参数少且

易获取，在苏X区块具有很好的使用价值。

Abstract:
 

The method of predicting gas well productivity in Sulige gas field does not consider the

influence of highwater saturation on gas well productivity, resulting in large deviation of productivity prediction results. Based on the productivity

equation of gas well, the factors affecting productivity are studied. By comprehensive analysis of various parameters, it is judged that the main factor

affecting the productivity of unfractured wells is formation coefficient. In order to reduce the influence of irreducible water saturation and residual

gas saturation on reservoir evaluation, the improved formation coefficient method is proposed to predict productivity. In this method, the Pearson

relative permeability model is selected, the empirical parameters of the model are determined by using the experimental data, and the normalized

relative permeability is calculated. Combined with the effective gas reservoir thickness, the improved formation coefficient m based on the

normalized relative permeability is obtained, and the M prediction productivity model is established. Verified by well Su X-20-9X and well Su X-

11-22X in Su X block, the coincidence rate between the predicted open flow rate and the gas testing open flow rate by using the improved formation

coefficient method is more than 82%, which is in line with the actual production law of gas wells. This method needs few parameters and is easy to

obtain, so it has good application value in Su X block.

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备注/Memo

备注/Memo:
 收稿日期 2020-10-26收稿，2021-04-24修回,2021-05-04接受,2021-06-20网络版发表

渤海钻探工程有限公司重大科技专项“苏里格合作区块地质深化研究”子课题“苏里格合作区块低品质储量区分级评价及开发部署”（2020ZD09F-02）
邓东东，女，1984年出生，工程师，2008年毕业于中国石油大学（北京）石油工程专业，主要从事油气田开发地质、油藏工程研究工作。
电话：022-66332700，15900249055；Email：dengdongdong666@126.com。通信地址：天津市滨海新区第二大街83号，邮政编码：300457。

更新日期/Last Update: 2021-08-10