Chemical Effect on Wellbore Instability of Nahr Umr Shale

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left"> </td><td align="center">Organic salt</td><td align="center">KCL-polymer</td><td align="center">Gel-polymer</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">Recovery Rate (%)</td><td align="center">95</td><td align="center">96</td><td align="center">97</td></tr><tr><td align="left">Swelling Ratio (%)</td><td align="center">24</td><td align="center">36</td><td align="center">22</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Swelling ratio and recovery of the Nahr Umr Shale.

The Scientific World Journal

tab5

Table 5

Table 5: Chemical Effect on Wellbore Instability of Nahr Umr Shale 