Numerical Simulation Study on the Development Effect of Gravity Fire Flooding by Vertical Well Sidetracking

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/jen/volume-2022/5737027/figures/5737027.fig.008a.svgz" name="5737027.fig.008a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>The sidetracking length of vertical well is 30 m</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/jen/volume-2022/5737027/figures/5737027.fig.008b.svgz" name="5737027.fig.008b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>The sidetracking length of vertical well is 40 m</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/jen/volume-2022/5737027/figures/5737027.fig.008c.svgz" name="5737027.fig.008c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>The sidetracking length of vertical well is 50 m</td></tr></table>

<div>Recovery sensitivity analysis results. Among them, the meanings of the abbreviated letters in the figure are as follows: Ps: perforation location of gas injection well; So: oil saturation; Perm: permeability;<span class="nowrap"><svg height="9.49473pt" id="M8" style="vertical-align:-0.2063999pt" version="1.1" viewbox="-0.0498162 -9.28833 6.83278 9.49473" width="6.83278pt" 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="M499 88L487 113C459 86 422 65 413 65C403 65 403 74 409 98L461 318C487 426 460 448 431 448C408 448 383 441 352 424C305 398 223 344 157 257H155L243 674C249 702 249 712 240 712C227 712 170 680 87 673L82 648H117C155 648 162 644 150 590L23 -4L30 -12C55 -4 81 3 105 8C113 53 131 150 143 187C199 281 323 387 372 387C390 387 393 369 380 311L328 86C313 19 319 -12 347 -12C379 -12 442 24 499 88Z"></path></g></svg>:</span> reservoir thickness; Por: porosity;<span class="nowrap"><svg height="9.39034pt" id="M9" style="vertical-align:-3.42943pt" version="1.1" viewbox="-0.0498162 -5.96091 6.50656 9.39034" width="6.50656pt" 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="M474 429L457 433C435 440 389 448 367 448C348 448 323 446 309 443C266 434 195 406 148 366C78 307 23 210 23 101C23 35 55 -12 92 -12C118 -12 146 1 196 35C247 70 311 130 346 173H348L281 -148C268 -211 256 -221 208 -229L191 -232L187 -257L433 -245L437 -219L411 -216C357 -210 350 -205 362 -140L427 207C447 315 461 381 474 429ZM387 387C379 337 363 262 355 236C318 180 201 57 142 57C126 57 112 81 112 128C112 205 150 321 220 376C244 395 280 403 312 403C345 403 370 396 387 387Z"></path></g></svg>:</span> gas injection rate.</div>

Journal of Energy

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Figure 8

Figure 8: Numerical Simulation Study on the Development Effect of Gravity Fire Flooding by Vertical Well Sidetracking 