| 摘要 |
<p>Described is a method for drilling and constructing a well under balanced conditions for removing the formation damage that includes: the perforation of a well using a drilling carcass with a drilling assembly connected to the lower end portion thereof and a losing circular element located in the drilling carcass at a particular depth where a well reservoir may be isolated from the upper portion of the well. The well will flow upon starting the balanced perforation. When the perforation has been completed, the circular closing element is activated and the well is finished without damages to the reservoir caused by the loss of balance during the perforation.</p> |
