基本信息:
- 专利标题： 一种低渗碳酸盐岩气藏边远井产能评价方法
- 专利标题（英）：Method for evaluating productivity of remote wells of low-permeability carbonate gas reservoir
- 申请号：CN201910865807.4 申请日：2019-09-12
- 公开(公告)号：CN110765415A 公开(公告)日：2020-02-07
- 发明人： 李琳 , 伍勇 , 谢姗 , 兰义飞 , 张建国 , 何磊 , 刘海锋 , 刘军 , 袁继明 , 焦扬 , 艾庆琳 , 田敏 , 黄琼 , 朱长荣 , 夏勇 , 何鎏 , 张保国
- 申请人： 中国石油天然气股份有限公司
- 申请人地址： 北京市东城区东直门北大街9号中国石油大厦
- 专利权人： 中国石油天然气股份有限公司
- 当前专利权人： 中国石油天然气股份有限公司
- 当前专利权人地址： 北京市东城区东直门北大街9号中国石油大厦
- 代理机构： 西安吉盛专利代理有限责任公司
- 代理人： 赵娇
- 主分类号： G06F17/18
- IPC分类号： G06F17/18 ; G06Q50/02
The invention discloses a method for evaluating productivity of remote wells of a low-permeability carbonate gas reservoir. The method comprises the following steps: 1) analyzing main factors influencing unchoked flow of a low-permeability carbonate gas reservoir remote well to be evaluated by utilizing a one-point method formula; 2) arranging original formation pressure, bottom hole flow pressureand daily gas production rate data of all remote wells of the low-permeability carbonate gas reservoir over the years; 3) according to a Cullender-Smith pipe flow formula, converting the well bottomflow pressure of all remote wells in the step 2) over the years into well mouth oil pressure; 4) calculating the unchoked flow qaof all remote wells in the step 2) over the years through a one-point method formula; (5) drawing an intersection diagram of the wellhead oil pressure in the step (3), the unchoked flow in the step (4) and the daily gas production rate in the step (2); and (6) regressingthe trend of the distribution scatter points in the intersection diagram in the step (5) into a fitting relational expression.
公开/授权文献:
- CN110765415B 一种低渗碳酸盐岩气藏边远井产能评价方法 公开/授权日：2023-10-31