专利申请号:CN201420679019.9公开号:CN204283404U申请日:2014.11.13公开日:2015.04.22申请人:西安科技大学本实用新型提供一种煤层气水平井扩径对密度测井影响的模拟实验装置,在环氧树脂胶结模型煤层上表面沿水平方向钻孔形成半空间井眼模型,使钻孔中一部分为正常井眼另一部分为扩径井眼;密度测量系统包括置于半空间井眼中的密度测井探管,用于牵拉密度测井探管在井眼中移动的拽引 Patent application number: CN201420679019.9 Publication Number: CN204283404U Date of Application: 2014.11.13 Date of disclosure: 2015.04.22 Applicant: Xi’an University of Science and Technology The utility model provides a simulation experiment apparatus for the effect of the diameter expansion of a horizontal well of a CBM gas on density logging , A semi-space wellbore model is drilled in the horizontal direction on the upper surface of the epoxy cement model coal seam to make a part of the borehole be a normal borehole and the other part is an expanded borehole; the density measurement system comprises a half-space well Density logging probe, used to pull the density logging probe in the wellbore