A Parametric Study of Coupled Hydromechanical Behaviors Induced by Shallow Water Flow in Shallow Sediments in Deepwater Drilling Based on Numerical Modeling

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Parameter</td><td class="align_center">Value</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Mesh size</td><td class="align_center">600 m by 600 m</td></tr><tr><td class="align_left">Coordinates of wellbore location</td><td class="align_center">(300 m, 300 m)</td></tr><tr><td class="align_left">Wellbore radius</td><td class="align_center">0.1 m</td></tr><tr><td class="align_left">Water density</td><td class="align_center">1000 kg/m<sup>3</sup></td></tr><tr><td class="align_left">Water viscosity</td><td class="align_center">0.002 Pa·s</td></tr><tr><td class="align_left">Water compressibility</td><td class="align_center"><span style="width: 83.177ptpx;"><svg height="13.7421pt" id="M62" style="vertical-align:-2.1507pt" version="1.1" viewbox="-0.0498162 -11.5914 83.177 13.7421" width="83.177pt" 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26C158 26 128 174 128 313S152 598 243 598Z"></path></g><g transform="matrix(.013,0,0,-0.013,58.564,0)"><path d="M384 0V27C293 34 287 42 287 114V635C232 613 172 594 109 583V559L157 557C201 555 205 550 205 499V114C205 42 199 34 109 27V0H384Z"></path></g><g transform="matrix(.013,0,0,-0.013,64.804,0)"><path d="M368 703H309L44 -163H104L368 703Z"></path></g><g transform="matrix(.013,0,0,-0.013,70.165,0)"><path d="M46 650V622C120 617 128 613 128 525V125C128 42 120 34 40 28V0H311V28C221 34 212 39 212 124V281L286 262C297 261 316 261 331 263C429 275 526 338 526 468C526 533 501 579 462 609C422 638 364 650 293 650H46ZM212 559C212 588 215 600 223 606C230 613 251 618 279 618C361 618 430 572 430 464C430 337 350 302 285 302C252 302 225 309 212 314V559Z"></path></g><g transform="matrix(.013,0,0,-0.013,77.197,0)"><path d="M433 39L423 65C413 59 399 54 387 54C370 54 352 69 352 114V299C352 352 342 392 307 422C285 440 255 449 225 449C168 437 102 399 75 379C56 365 44 353 44 339C44 315 69 296 87 296C101 296 111 303 116 319C124 349 133 371 145 385C156 397 171 404 190 404C241 404 275 364 275 291V274C253 256 180 229 120 209C65 190 39 159 39 110C39 47 88 -12 159 -12C189 -12 237 25 277 52C282 35 288 21 301 8C312 -3 333 -12 348 -12L433 39ZM275 84C256 65 221 48 195 48C164 48 124 73 124 124C124 161 146 180 185 198C206 208 254 229 275 240V84Z"></path></g></svg></span></td></tr><tr><td class="align_left">Density of porous media</td><td class="align_center">2350 kg/m<sup>2</sup></td></tr><tr><td class="align_left">Porosity of porous media</td><td class="align_center">0.4</td></tr><tr><td class="align_left">Permeability of porous media</td><td class="align_center"><span style="width: 74.3832ptpx;"><svg height="11.9413pt" id="M63" style="vertical-align:-0.3499002pt" version="1.1" viewbox="-0.0498162 -11.5914 74.3832 11.9413" width="74.3832pt" 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="M384 0V27C293 34 287 42 287 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69 296 87 296C101 296 111 303 116 319C124 349 133 371 145 385C156 397 171 404 190 404C241 404 275 364 275 291V274C253 256 180 229 120 209C65 190 39 159 39 110C39 47 88 -12 159 -12C189 -12 237 25 277 52C282 35 288 21 301 8C312 -3 333 -12 348 -12L433 39ZM275 84C256 65 221 48 195 48C164 48 124 73 124 124C124 161 146 180 185 198C206 208 254 229 275 240V84Z"></path></g></svg></span></td></tr><tr><td class="align_left">Young’s modulus of porous media</td><td class="align_center">15 GPa</td></tr><tr><td class="align_left">Poisson’s ratio of porous media</td><td class="align_center">0.25</td></tr><tr><td class="align_left">Biot’s coefficient</td><td class="align_center">1</td></tr><tr><td class="align_left">Hydrostatic pressure in the wellbore</td><td class="align_center">10.9 MPa</td></tr><tr><td class="align_left">Pore pressure in the overpressured layer</td><td class="align_center">13.6 MPa</td></tr><tr><td class="align_left">Boundary condition for water flow</td><td class="align_center">No flow Neumann boundary</td></tr><tr><td class="align_left">Boundary condition for deformation</td><td class="align_center">Fixed displacement</td></tr><tr><td class="align_left">Simulation time for the induced shallow water flow</td><td class="align_center">1 day</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Parameters for the base case of the numerical study.</div>

Geofluids

tab3

Table 3

Table 3: A Parametric Study of Coupled Hydromechanical Behaviors Induced by Shallow Water Flow in Shallow Sediments in Deepwater Drilling Based on Numerical Modeling 

Table 3 | A Parametric Study of Coupled Hydromechanical Behaviors Induced by Shallow Water Flow in Shallow Sediments in Deepwater Drilling Based on Numerical Modeling 