摘要
考虑到测量煤层等温吸附曲线所伴生的煤储层含气量测量误差以及储层混合排采的影响,提出"气井全煤层吸附曲线"的计算、绘制方法,即根据煤层的镜质组最大反射率计算LI吸附流动方程中的相应参数,根据煤层的埋深确定储层温度和煤层吸附压力上限,计算低于吸附压力上限时各煤层在不同压力下的吸附量,将所有煤层在相同压力下的吸附量加和得气井全煤层吸附曲线。
In consideration of the associated measuring errors of coal reservoir＇ s gas content in the measurement of coal adsorption isotherm and the influence of coal reservoir＇ s mixed water drainage and gas collection, this paper puts forward a method for calculating and drawing the all coalbeds adsorption curve of gas well, that is to calculate the corresponding parameters of LI adsorption-flow equation according to the maximum reflectance of vitrinite of coal bed, to determine the upper limit of coal reservoir＇ s temperature and coalbed＇ s adsorption pressure, to calculate the adsorption quantity of each coalbed at different pressures within the adsorption pressure limit, and to obtain the all coalbeds adsorption curve of gas well through adding together the adsorption quantity of all coalbeds at the same pressure.
出处
《山西科技》
2016年第1期68-70,75,共4页
Shanxi Science and Technology
关键词
全煤层吸附曲线
镜质组最大反射率
LI吸附流动方程
吸附压力上限
all coalbeds adsorption curve
maximum reflectance of vitrinite
LI adsorption-flow equation
adsorption pressure s upper limit
