Time Characteristics of the Influence Radius by Injecting N<sub>2</sub> to Displace Coalbed Methane: A Case Study

<div>N<sub>2</sub> pressure perpendicular to the <span class="nowrap"><svg height="8.8423pt" id="M63" style="vertical-align:-0.2064009pt" version="1.1" viewbox="-0.0498162 -8.6359 9.52082 8.8423" width="9.52082pt" 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="M699 369C699 549 575 666 407 666C186 666 23 488 23 278C23 101 145 -16 312 -16C535 -16 699 153 699 369ZM600 373C600 210 500 19 321 19C186 19 120 129 120 272C120 450 232 631 399 631C541 631 600 522 600 373Z"></path></g></svg>-</span><svg height="8.68572pt" id="M64" style="vertical-align:-0.0498209pt" version="1.1" viewbox="-0.0498162 -8.6359 9.2729 8.68572" width="9.2729pt" 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="M686 28C612 35 607 44 591 112C563 234 541 360 519 489L489 666L457 658L147 121C100 40 89 36 24 28L17 0H240L250 28C168 34 159 41 190 101L262 237H482C495 180 503 137 510 91C517 47 514 35 441 28L433 0H677L686 28ZM475 280H285L429 541H431L475 280Z"></path></g></svg> direction under 0.5 MPa gas injection pressure.</div>

Geofluids

fig4

Figure 4

Figure 4: Time Characteristics of the Influence Radius by Injecting N<sub>2</sub> to Displace Coalbed Methane: A Case Study 

Geofluids

Time Characteristics of the Influence Radius by Injecting N2 to Displace Coalbed Methane: A Case Study

Figure 4

Time Characteristics of the Influence Radius by Injecting N₂ to Displace Coalbed Methane: A Case Study