Drilling Parameter Optimization of Shale Gas Wells Based on Saw-Tooth Genetic Algorithm to Reduce Drilling Costs

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="13"><hr/></td></tr><tr class="thead"><td class="align_center" colspan="3">Rock strength parameters</td><td class="align_center" colspan="3">Hydraulic parameters</td><td class="align_center" colspan="7">Bit parameters</td></tr><tr class="thead"><td class="align_left"><span style="width: 15.014ptpx;"><svg height="11.927pt" id="M110" style="vertical-align:-3.291101pt" version="1.1" viewbox="-0.0498162 -8.6359 15.014 11.927" width="15.014pt" 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="M743 650H503L496 622L527 618C563 613 564 603 532 573C449 495 371 431 323 392C301 374 272 355 246 346L280 522C297 609 300 614 379 622L385 650H135L129 622C209 614 215 609 198 522L124 133C106 39 99 35 23 28L17 0H271L277 28C193 35 192 39 208 133L239 316C264 328 280 325 303 288C368 183 435 90 502 0H652L659 28C602 34 584 43 543 94C495 154 403 283 347 369L574 554C634 603 659 612 735 624L743 650Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,9.23,3.132)"><path d="M538 684C542 703 539 710 529 710C512 710 455 682 363 674L361 644H396C444 644 448 642 438 594L405 438C373 450 347 451 336 451C288 451 200 416 147 374C69 312 24 207 24 113C24 29 60 -12 94 -12C126 -12 156 4 196 30C231 53 296 100 346 166H348L328 81C311 10 325 -12 348 -12C380 -12 450 24 512 98L495 125C466 97 431 70 417 70C408 70 408 80 411 98L538 684ZM390 373L361 240C336 196 210 56 145 56C132 56 113 73 113 131C113 216 156 338 220 379C243 394 266 402 303 402C331 402 375 388 390 373Z"></path></g></svg></span></td><td class="align_center"><span style="width: 16.7625ptpx;"><svg height="14.1649pt" id="M111" style="vertical-align:-5.529pt" version="1.1" viewbox="-0.0498162 -8.6359 16.7625 14.1649" width="16.7625pt" 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 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<div>Rock strength parameters, hydraulic parameters, and bit parameters.</div>

Geofluids

tab1

Table 1

Table 1: Drilling Parameter Optimization of Shale Gas Wells Based on Saw-Tooth Genetic Algorithm to Reduce Drilling Costs 