[1]罗 政.贵州煤层气试井解释基础参数优选[J].油气井测试,2018,27(01):68-72.[doi:10.19680/j.cnki.1004-4388.2018.01.011]
　LUO Zheng. Optimization of basic parameters for Guizhou coalbed gas well test interpretation[J].Well Testing,2018,27(01):68-72.[doi:10.19680/j.cnki.1004-4388.2018.01.011]
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贵州煤层气试井解释基础参数优选()
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《油气井测试》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2018年01期
页码:
68-72
栏目:
出版日期:
2018-02-25

文章信息/Info

Title:
 Optimization of basic parameters for Guizhou coalbed gas well test interpretation
文章编号:
1004-4388(2018)01-0068-05
作者:
罗  政
贵州省煤田地质局实验室  贵州贵阳  550081
Author(s):
 LUO Zheng
 Laboratory of Guizhou Coal Mine Geology Administration Bureau, Guiyang, Guizhou 550081, China
关键词:
煤层气; 试井解释; 基础参数; 孔隙度; 综合压缩系数; 参数优选
Keywords:
 ; 

coalbed gas;  well test interpretation;  porosity;  total compressibility

coefficient;  parameters optimization

分类号:
TE353
DOI:
10.19680/j.cnki.1004-4388.2018.01.011
文献标志码:
B
摘要:

煤层气井试井解释中基础参数的取值对储层渗透率、探测半径、表皮系数和断层（裂缝）距离等的计

算影响较大，取值不准确容易造成试井结果与真实储层参数之间偏差较大，不利于指导煤层气试井工程施工和煤层气井储层评价研究。以贵州煤层气参数井试井工程试

验和区域煤层测试资料为依据，研究黔西煤田、黔北煤田的煤质特征及煤层孔隙度，模拟不同区域煤层综合压缩系数的取值范围。结果显示，黔西煤田煤层综合压缩系

数为6.73×10-5MPa-1、孔隙度为4.89%；黔北煤田煤层综合压缩系数为3.06×10-5MPa-1、孔隙度为5.21%，流体水黏度取值范围为0.5～1.2 mPa·s、水地层
体积系数取值为1。通过区域试井试验和基础参数值优选，提高对储层地质评价分析的准确性，其结果可为煤层气试井解释、工程设计研究提供借鉴和参考。

Abstract:

he values of basic parameters for coalbed gas well test interpretation have

great influence on the determination of permeability, investigation radius, skin factor, and distance from fault and so on. The inaccurate values

of basic parameters may cause the great deviation of well testing result from the actual formation parameters, which may bring out the

inappropriate well testing operation and evaluation for coalbed gas well. In this paper, original data of well testing in Western Guizhou Coal

Mine and Northern Guizhou Coal Mine were used in simulation to determine basic parameters in different regions. The results show that the average

total compressibility coefficient is 6.73×10-5MPa-1 for coal mines in western Guizhou and 3.06×10-5MPa-1 for coal mines in northern Guizhou.
The average porosity is 4.87% for Zhina Coal Mine, 4.90% for Shuicheng Panxian Coal Mine, 4.89% for Western Guizhou

Coal Mine, and 5.21% for Northern Guizhou Coal Mine. The water viscosity ranges in 0.5～1.2 mPa·s and the formation volume factor of

water is approximately 1. These results can provide valuable references for coalbed gas well test interpretation and engineering design.

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备注/Memo

备注/Memo:
 2017-07-17收稿，2017-12-03修回，2017-12-08接受，2018-03-30网络发表

罗政，男，1983年出生，工程师，2007年毕业于贵州大学材料化学专业，主要从事岩矿

测试及煤层气页岩气检测检验研究工作。电话：13310400307；Email：568650184@qq.com。地址：贵州省贵阳市观山湖区阳关大道贵州煤田地质科技中心实验室，邮政

编码：550081。

更新日期/Last Update: 2018-04-26