Calculation of Cementing ECD for Well Annuli with Narrow or Varied Radial Sizes

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Part no.</td><td class="align_center"><span style="width: 14.3825ptpx;"><svg height="11.927pt" id="M162" style="vertical-align:-3.291101pt" version="1.1" viewbox="-0.0498162 -8.6359 14.3825 11.927" width="14.3825pt" 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 375C743 570 607 650 407 650H136L130 622C214 612 220 606 204 526L125 122C110 43 105 36 24 27L17 0H250C382 0 482 23 571 76C680 141 743 248 743 375ZM644 379C644 188 520 36 305 36C277 36 249 38 229 46C205 55 202 71 212 126L293 553C300 588 306 600 317 606C330 613 356 617 390 617C547 617 644 537 644 379Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,9.893,3.132)"><path d="M398 365C398 411 356 451 297 451C250 451 198 430 151 397C65 336 24 230 24 139C24 14 97 -12 148 -12C198 -12 284 7 373 104L355 130C306 84 246 53 198 53C132 53 111 109 111 163V189C209 211 398 261 398 365ZM317 351C317 308 273 262 117 225C134 338 189 383 221 399C230 404 249 407 263 407C295 407 317 389 317 351Z"></path></g></svg></span></td><td class="align_center"><span style="width: 17.1227ptpx;"><svg height="11.927pt" id="M163" style="vertical-align:-3.291101pt" version="1.1" viewbox="-0.0498162 -8.6359 17.1227 11.927" width="17.1227pt" 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 375C743 570 607 650 407 650H136L130 622C214 612 220 606 204 526L125 122C110 43 105 36 24 27L17 0H250C382 0 482 23 571 76C680 141 743 248 743 375ZM644 379C644 188 520 36 305 36C277 36 249 38 229 46C205 55 202 71 212 126L293 553C300 588 306 600 317 606C330 613 356 617 390 617C547 617 644 537 644 379Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,9.893,3.132)"><path d="M698 334C698 397 680 451 655 451C627 451 602 424 602 397C602 389 605 383 614 371C622 360 624 340 624 317C624 161 546 47 458 47C419 47 389 69 389 125C389 142 391 162 397 185L457 430L451 435L380 421L315 164C301 107 266 47 222 47C182 47 153 69 153 126C153 137 157 162 161 185C166 214 179 265 197 334C203 358 208 385 208 407C208 433 201 451 176 451C124 451 64 404 24 348L44 320C86 366 113 382 121 382C126 382 128 381 128 374C128 368 126 356 122 341C102 266 88 204 81 164C77 143 73 121 73 107C73 23 131 -12 187 -12C234 -12 281 10 322 45C343 5 383 -12 422 -12C559 -12 698 174 698 334Z"></path></g></svg></span></td><td class="align_center">Starting position</td><td class="align_center">Ending position</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">0.273050</td><td class="align_center">0.3143504</td><td class="align_center">0</td><td class="align_center">1599.9</td></tr><tr><td class="align_left">2</td><td class="align_center">0.250825</td><td class="align_center">0.3143504</td><td class="align_center">1599.9</td><td class="align_center">1905.0</td></tr><tr><td class="align_left">3</td><td class="align_center">0.250825</td><td class="align_center">0.2736088</td><td class="align_center">1905.0</td><td class="align_center">2565.8</td></tr><tr><td class="align_left">4</td><td class="align_center">0.250825</td><td class="align_center">0.3111500</td><td class="align_center">2565.8</td><td class="align_center">3253.1</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Configuration of the annulus with varied radial sizes.</div>

Geofluids

tab5

Table 5

Table 5: Calculation of Cementing ECD for Well Annuli with Narrow or Varied Radial Sizes 