Isolation and Characterization of Viscosity-Reducing and Biosurfactant-Producing Bacteria in Low-Permeability Reservoir

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Layer</td><td class="align_center">Culture medium</td><td class="align_center">Name</td><td class="align_center">Quantity</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Chang 6</td><td class="align_center">Oil sample, NB medium</td><td class="align_center">Letter+number</td><td class="align_center">16</td></tr><tr><td class="align_left" rowspan="4">Chang <svg height="8.69875pt" id="M24" style="vertical-align:-0.3499298pt" version="1.1" viewbox="-0.0498162 -8.34882 26.097 8.69875" width="26.097pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M456 178V225H360V632H320C217 496 115 347 20 206V178H280V106C280 40 276 34 189 27V0H445V27C364 34 360 39 360 106V178H456ZM280 225H82C149 335 214 431 278 520H280V225Z"></path></g><g transform="matrix(.013,0,0,-0.013,9.146,0)"><path d="M535 230V280H323V490H265V280H52V230H265V-3H323V230H535Z"></path></g><g transform="matrix(.013,0,0,-0.013,19.682,0)"><path d="M153 550H386L412 615L406 623H120L82 318C104 327 142 338 184 338C294 338 347 275 347 187C347 112 305 39 221 39C160 39 119 71 97 89C88 97 80 96 71 90C59 80 50 67 49 57C48 45 52 36 66 23C80 9 123 -12 169 -12C221 -11 288 15 342 59C403 109 431 165 431 225C431 308 366 395 238 395C212 395 165 379 127 364L153 550Z"></path></g></svg></td><td class="align_center">Water sample, NB medium</td><td class="align_center">SC45+ dilution gradient+number</td><td class="align_center">24</td></tr><tr><td class="align_center">Oil sample, NB medium</td><td class="align_center">OC45+ dilution gradient+number</td><td class="align_center">17</td></tr><tr><td class="align_center">Water sample, MSM</td><td class="align_center">JSC45+ dilution gradient+number</td><td class="align_center" rowspan="2">13</td></tr><tr><td class="align_center">Oil sample, MSM</td><td class="align_center">JOC45+ dilution gradient+number</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Information of selected single strains.</div>

International Journal of Energy Research

tab2

Table 2

Table 2: Isolation and Characterization of Viscosity-Reducing and Biosurfactant-Producing Bacteria in Low-Permeability Reservoir 