Technology for coiled-tubing-conveyed perforating (CTCP) under extreme conditions has been available for a number of years, but the techniques have not been used in Venezuela until recently. A new high-pressure/high-temperature (HP/HT), highly deviated deep well in El Furrial field was the first well perforated underbalanced with this technology. After evaluating several traditional perforating methods, the decision was made to perforate underbalanced with rig-assisted CT technology because of the following advantages. 1. Debris in the perforation tunnel would be reduced, minimizing formation-damage potential. 2. Debris could be circulated out more easily. 3. Kill fluid for well control would not be necessary. 4. Well costs would be reduced.
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机译：极端条件下的卷管输送射孔技术（CTCP）已有多年使用，但直到最近才在委内瑞拉使用。 El Furrial油田的一口新的高压/高温（HP / HT）深井高度偏斜，是该技术中第一个射孔欠平衡的井。在评估了几种传统的射孔方法之后，由于以下优点，决定使用钻机辅助CT技术进行欠平衡射孔。 1.将减少射孔隧道中的碎屑，最大程度地减少地层破坏的可能性。 2.碎片更容易散发。 3.不需要井液控制井。 4.降低井成本。
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