[1]冯青.低渗含水气藏非线性数值试井解释模型及压力特征分析[J].油气井测试,2019,28(02):6-13.[doi:10.19680/j.cnki.1004-4388.2019.02.002]
　FENG Qing.Nonlinear numerical well test interpretation model and pressure characteristics analysis for low permeability waterbearing gas reservoirs[J].Well Testing,2019,28(02):6-13.[doi:10.19680/j.cnki.1004-4388.2019.02.002]
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低渗含水气藏非线性数值试井解释模型及压力特征分析()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
28
期数:
2019年02期
页码:
6-13
栏目:
出版日期:
2019-04-25

文章信息/Info

Title:

Nonlinear numerical well test interpretation model and pressure characteristics analysis for

low permeability waterbearing gas reservoirs

文章编号:
1004-4388(2019)02-0006-08
作者:
冯青
中海油田服务股份有限公司油田生产研究院 天津 300459
Author(s):
 FENG Qing
Oilfield Production Research Institute of China Oilfield Service Co., Ltd., Tianjin 300459, China
关键词:
低渗气藏;  数值试井;  应力敏感;  启动压力;  敏感性分析;  压力特征;  径向流
Keywords:

low permeability gas reservoir;  numerical well test;  stress sensitivity;  starting pressure; 

sensitivity analysis;  pressure characteristics;  radial flow

分类号:
TE353
DOI:
10.19680/j.cnki.1004-4388.2019.02.002
文献标志码:
A
摘要:

为研究流体非线性渗流对疏松低渗气藏试井压力动态特征的影响，建立启动压力梯度及应力敏感效应影响下的气

水两相数值试井模型，采用有限差分及IMPES方法进行求解，绘制压力及其导数双对数图版，并进行影响参数的敏感性分析。研究表明，启动压力梯度、应力敏感效应

均会增加流体的渗流阻力，导致不同边界类型试井解释中压力及压力导数曲线上翘，径向流水平段消失；气水比、表皮系数对压力导数径向流段影响较小，对压力曲线

的开口大小影响较大；井筒储集系数较大时会掩盖掉部分径向流特征段，但不会影响后续的径向流及边界效应阶段。该方法对存在启动压力及应力敏感效应的低渗含水

气藏压力恢复试井解释具有指导意义。

Abstract:

A gaswater twophase numerical well test model under the influence of starting

pressure gradient and stress sensitivity effect was established to study the influence of nonlinear seepage flow on the pressure dynamic

characteristics in well testing of loose and low permeability gas reservoirs.Then, the model wassolved by finite difference and IMPES method. The

pressure and pressure derivative plates were drawnand the sensitivity analysiss of the influencing parameters were conducted. The research results

show that the starting pressure gradient and stresssensitive effect increase the seepage resistance of the fluid, which leads to the buildup of

the pressure and pressure derivative curves in the well test interpretation of different boundary types, and the disappearance of horizontal

section of the radial flow. The gaswater ratio and the skin factor has little effect on the pressure derivative radio flow section, but has a

great influence on the opening of the pressure curve. When the wellbore storage coefficient is large, part of radial flow section will be masked,

but the subsequent radial flow and boundary effect section are not affected. The proposed method can guide the pressure buildup test

interpretation of low permeability waterbearing gas reservoirs with starting pressure and stress sensitivity effects.

相似文献/References:

[1]张小龙,杨志兴.启动压力梯度对低渗气藏不稳定渗流特征的影响[J].油气井测试,2018,27(03):7.[doi:10.19680/j.cnki.1004-4388.2018.03.002]
　ZHANG Xiaolong,YANG Zhixing.Impacts of startup pressure gradient on features of transient seepage flowin lowpermeability gas reservoirs[J].Well Testing,2018,27(02):7.[doi:10.19680/j.cnki.1004-4388.2018.03.002]
[2]陈超峰,孙刚,毛新军,等. 高探1井储层评价与产能分析[J].油气井测试,2020,29(05):61.[doi:10.19680/j.cnki.1004-4388.2020.05.011]
　CHEN Chaofeng,SUN Gang,MAO Xinjun,et al. Reservoir evaluation and productivity analysis of Well Gaotan 1[J].Well Testing,2020,29(02):61.[doi:10.19680/j.cnki.1004-4388.2020.05.011]
[3]梁莹. 川西中浅层井低密度支撑剂脉冲压裂技术[J].油气井测试,2022,31(02):36.[doi:10.19680/j.cnki.1004-4388.2022.02.007]
　LIANG Ying. Pulse fracturing technology with lowdensity proppant for midshallow wells in western Sichuan Basin[J].Well Testing,2022,31(02):36.[doi:10.19680/j.cnki.1004-4388.2022.02.007]
[4]宋刚祥,伍锐东,罗岐岚,等. 低渗气藏产能测试评价技术[J].油气井测试,2022,31(06):74.[doi:10.19680/j.cnki.1004-4388.2022.06.015]
　[J].Well Testing,2022,31(02):74.[doi:10.19680/j.cnki.1004-4388.2022.06.015]

备注/Memo

备注/Memo:
2018-04-04收稿，2019-01-31 修回, 2019-02-14 接受, 2019-04-20 网络版发表

中国海洋石油公司科研项目“海上油田生物纳米解堵增注技术研究及应用(一期)”

（YSB18YF008）

冯青，男，1987年出生，硕士，工程师，2013年毕业于西南石油大学油气田开发工程专业，从事

非常规储层渗流力学、试井、数值模拟等油气田开发方面科研工作。电话：022-59551929，15222118220；Email：fengqing2@cosl.com.cn。通信地址：天津市滨海新

区塘沽海洋高新技术开发区海川路1581号，邮政编码：300459。

更新日期/Last Update: 2019-04-29