[1]赵军,杨阳,李伟伟,等.基于有效地层系数的气井产能预测方法[J].测井技术,2015,39(04):501-504.[doi:10.16489/j.issn.1004-1338.2015.04.021]
 ZHAO Jun,YANG Yang,LI Weiwei,et al.Prediction Method of Productivity in Tight Sand Stone Based on Effective Formation Factor[J].WELL LOGGING TECHNOLOGY,2015,39(04):501-504.[doi:10.16489/j.issn.1004-1338.2015.04.021]
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基于有效地层系数的气井产能预测方法
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《测井技术》[ISSN:1004-1338/CN:61-1223/TE]

卷:
第39卷
期数:
2015年04期
页码:
501-504
栏目:
综合应用
出版日期:
2015-08-30

文章信息/Info

Title:
Prediction Method of Productivity in Tight Sand Stone Based on Effective Formation Factor
文章编号:
1004-1338(2015)04-0501-04
作者:
赵军1 杨阳1 李伟伟1 杨林2 冯春珍2
1.西南石油大学地球科学与技术学院, 四川 成都 610500;
2.中国石油集团测井有限公司长庆事业部, 陕西 西安 710200
Author(s):
ZHAO Jun 1 YANG Yang1 LI Weiwei1 YANG Lin2 FENG Chunzhen2
1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. Changqing Division, China Petroleum Logging CO. LTD., Xi'an, Shaanxi 710200, China
关键词:
测井解释 低渗透率 气井 Pirson模型 有效地层系数 产能预测 有效厚度 相对渗透率
Keywords:
log interpretation low permeability gas well Pirson model effective formation coefficient production prediction effective thickness relative permeability
分类号:
P631.84
DOI:
10.16489/j.issn.1004-1338.2015.04.021
文献标志码:
A
摘要:
苏里格气田是大型低渗透率低孔隙度低压力气藏,岩性致密,储层物性平面非均质性严重,使得准确预测气井产能较困难。用于确定低渗透气井产能方程的方法存在诸多局限性。以平面径向流理论为基础,分析影响储层产能的主要因素是渗透率,又考虑致密储层内的非均质性。为减小束缚水和残余油气的影响,提出了基于归一化相对渗透率模型的有效地层系数F评价产能,该方法选用Pirson模型计算归一化相对渗透率,结合气层有效厚度,得到有效地层系数F,建立利用F预测产能的模型。将该方法在苏里格气田N区块盒8段储层进行验证,预测的无阻流量与测试无阻流量符合率在86%以上,符合气井的实际生产规律。
Abstract:
Tight sand stone which is newly found in Sulige gas field have characteristics with low permeability and pore and strong heterogeneity, which leads to accurate prediction of gas production more difficult. Currently, there are many limitations determining the low-permeability gas production. Based on the theory of plane radial flow, the main parameters affecting the capacity of the reservoir are determined. At the same time, formation heterogeneity is taken into consideration. Then a simple way to evaluate the gas production capacity is presented in this paper. Namely, using the effective formation coefficient F based on normalized relative permeability model to evaluate capacity of the gas production. The method use Pirson model to calculate the value of normalized relative permeability, combined with the effective thickness of air layer, the effective formation factor F is gotten. This method is used in Sulige gas field, and the productivity grade is accord with the test productivity grade(coincidence rate is 86%). The method fits both single layer testing and multilayer testing.

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备注/Memo

备注/Memo:
收稿日期: 2015-01-15
基金项目: 中国石油天然气集团公司科研项目碎屑岩储层测井产能预测技术研究及软件开发(2011B-4007)
作者简介: 赵军,男,1970年生,博士,教授,从事测井、地质研究工作。
更新日期/Last Update: 2015-08-30