«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:

20

期数:

2013年01期

页码:

77-79

栏目:

开发工程

出版日期:

2013-01-25

文章信息/Info

Title:

Influence of adsorbed gas on bottomhole pressure of shale gas wells with gas-water two-phase flow

文章编号:

201301019

作者:

吴晓慧1; 邓景夫1; 杨浩2; 王呈呈1; 蒋文超1

1.东北石油大学，黑龙江 大庆 163318；2.中海油田服务股份有限公司油田生产研究院，天津 300450

Author(s):

Yin Hu1;  Wang Xinhai2;  Zhang Fang2;  Sun Yu3;  Wang Shanshan2;  Chen Guangxi1;  Luan Shiqiang4

(1.MOE Key Laboratory of Oil & Gas Resources and Exploration Technology, Yangtze University, Jingzhou 434023, China;
2.MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
3.Downhole Operation Company, Shengli Petroleum Administration Bureau, SINOPEC, Dongying 257000, China;
4.No.5 Oil Production Plant, Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, China)

关键词:

低渗; 气田; 井距; 井网形式

Keywords:

shale gas;  gas-water two phases;  bottomhole pressure;  adsorbed gas;  desorption and diffusion

分类号:

TE37

DOI:

10.6056/dkyqt201301019

文献标志码:

A

摘要:

M气田为典型的低渗干气气藏，由于面积大、储量高，投产井数少且时间短，故各沉积单元的储量动用程度很低。为了使单井能够控制足够的储量且具有一定的供气能力和经济效益，文中通过经济极限井网密度法来确定该气田的经济极限井距；综合分析了M气田的地质特征及开采动态，采用均匀井网形式进行衰竭式开采。依据M气田地质特征及井网井距论证成果，共设计了8套对比方案，通过对各方案的数模预测，对比分析经济评价结果，推荐方案3（1 000 m井距的正方形井网）为最优方案。

Abstract:

There is a number of shale gases exsiting in the form of absorbed gas in shale gas reservoir. In the process of the development of gas reservoir, desorption and diffusion of absorbed gas will occur with the dropping of gas reservoir pressure. This will impact the pressure change process of the reservoir. Applied Langmuir isothermal adsorption curves and Fick diffusion law of quasi-steady state, the features of desorption and diffusion of adsorbed gas are charicterized mathematically in this paper. Combined with the principle of gas-water two-phase flow, a mathematical model of gas-water two-phase flow was built up for the shale gas reservoir. The finite difference method was used to get the numerical model and the computer programming was used to work out the analytic solutions of bottomhole pressure. At last, the influences of desorption and diffusion characteristics of adsorbed gas on the variation of gas well bottomhole pressure was analyzed. The results show that the fluid is supplied with adsorption gas, which increases the formation energy in turn. Thus, the decreasing of the bottomhole pressure becomes slower and pressure difference curve moves down. Due to matrix shrinkage and porosity increasing, physical property and formation flow property are improved, which leads to more obvious prophase depression of the pressure difference derivative curve.

参考文献/References:

-

相似文献/References:

[1]程百利.腰英台油田压裂改造工艺技术研究[J].断块油气田,2011,18(01):123.
[2]郝春山,张中伟.文23块气田水化物堵塞及预防措施[J].断块油气田,1995,02(01):52.
　[J].Fault-Block Oil and Gas Field,1995,02(01):52.
[3]梅海燕,吴东平,张茂林,等.塔巴庙大牛地低渗透气田试采动态预测研究[J].断块油气田,2004,11(02):42.
　Mei Haiyan,Wu Dongping,Zhang Maolin,et al.The Trial Production Performance Forecast Research of Daniudi Low Permeability Gas Field in Tabamiao[J].Fault-Block Oil and Gas Field,2004,11(01):42.
[4]张大椿,周理志,曹建洪,等.水力喷射泵在特殊油藏开采中的应用[J].断块油气田,2009,16(02):92.
　Zhang Dachun Zhou Lizhi Cao Jianhong Tang Shanfa Wu Ruidong.Application of hydraulic jet pump in production of particular reservoirs[J].Fault-Block Oil and Gas Field,2009,16(01):92.
[5]靳秀菊,毕建霞,姜贻伟,等.白庙气田储层伤害因素分析及配套保护措施[J].断块油气田,2003,10(03):46.
　[J].Fault-Block Oil and Gas Field,2003,10(01):46.
[6]于在宽,李怀庆,汪　海,等.腐蚀监测与防护技术在文23 气田的研究与应用[J].断块油气田,2002,09(04):69.
　Yu Zaikuan,Li Huaiqing,Wang Hai,et al.Investigation and Application of Corrosion Inspect and Protective Technology in Wen 23 Gasfield[J].Fault-Block Oil and Gas Field,2002,09(01):69.
[7]周俊杰,鄂淑君,秦晓东,等.大港油田低渗薄互层油藏整体压裂技术研究[J].断块油气田,2006,13(06):37.
　Zhou Junj ie,E Shujun,Q in X iaodong,et al.Study on Integra l Fracture Technology of Low Permeability and Thin Interbed R eservoir in Dagang Oilfield[J].Fault-Block Oil and Gas Field,2006,13(01):37.
[8]李臣生,赵斌,褚跃民,等.硫化氢对气田钢材的腐蚀影响及防治[J].断块油气田,2008,15(04):126.
　Li Chensheng,Zhao Bin,Chu Yuemin,et al.Impact of hydrogen sulfide corrosion to steels in gas field and the preventive measures[J].Fault-Block Oil and Gas Field,2008,15(01):126.
[9]王鹏,赵益忠,崔明月,等.压裂防砂技术在胜利油田低渗敏感稠油油藏的应用[J].断块油气田,2016,23(02):269.[doi:10.6056/dkyqt201602031]
　WANG Peng,ZHAO Yizhong,CUI Mingyue,et al.Application of fracturing sand control technology in low permeability sensitive heavy oil reservoir of Shengli Oilfield[J].Fault-Block Oil and Gas Field,2016,23(01):269.[doi:10.6056/dkyqt201602031]
[10]邹积瑞,岳湘安,孔艳军,等.裂缝性低渗油藏二氧化碳驱注入方式实验[J].断块油气田,2016,23(06):800.[doi:10.6056/dkyqt201606024]
　ZOU Jirui,YUE Xiangan,KONG Yanjun,et al.Injection experiment of carbon dioxide flooding in low-permeability fissure reservoirs[J].Fault-Block Oil and Gas Field,2016,23(01):800.[doi:10.6056/dkyqt201606024]

备注/Memo

备注/Memo:

-

常用功能

更新日期/Last Update: 2013-06-08