Study on Dynamic Behavior of a Titanium Alloy Drill Pipe in Complex Wells

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Steel drill pipe assembly</td><td class="align_center">Titanium alloy drill assembly</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left"><i>φ</i>139.7 mm steel drill pipe + <i>φ</i>127 mm steel drill pipe ∗ 3123 m + <i>φ</i>127 mm heavy weight drill pipe ∗ 54 m + <i>φ</i>139.7 mm screw + <i>φ</i>215.9 mm PDC bit</td><td class="align_center"><i>φ</i>139.7 mm steel drill pipe + <i>φ</i>127 mm titanium alloy drill pipe ∗ 3123 m + <i>φ</i>127 mm heavy weight drill pipe ∗ 54 m + <i>φ</i>139.7 mm screw + <i>φ</i>215.9 mm PDC bit</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Two drilling tool assembly schemes.</div>

Shock and Vibration

tab2

Table 2

Table 2: Study on Dynamic Behavior of a Titanium Alloy Drill Pipe in Complex Wells 