| 摘要 |
<p>An epoxy polymer is arranged to be carried in drilling fluid 9 for reinforcing a borehole 1 during drilling of the borehole. The epoxy polymer is meltable, fusible, and/or curable. The epoxy may be dissolved and/or emulsified and/or dispersed in the drilling fluid along the surface of the borehole. A downhole treatment device 19 may be used to melt, fuse, and/or cure the epoxy thereby applying a liner of polymer at the surface 15 of the borehole. Curing may be performed by concentrating energy in a limited space in the vicinity of the surface. Energy beams such as lasers, microwaves, induction, or ultrasound may be used to intersect and cure the epoxy. The drilling fluid may contain particulate epoxy polymer material which may be solid metal particles coated in epoxy. The metal may be diamagnetic.</p> |
