A method used to clean out perforation tunnels ins well.
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2. 更深处的射孔则没有水进入。
No water is entering through the deeper perforation.
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3. 超正压射孔工艺是一项射孔完井新技术。
Extreme overbalance perforating is a new perforation completion technique.
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4. 带有水平点火大射孔弹的消毁式聚能射孔枪。
An expendable jet perforating gun with large horizontal firing charges.
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5. 高压水射流射孔尤其适用于薄油层的射孔作业。
The high pressure water jet perforation technology is specially suited for the oil sheet perforation.
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6. 挤水泥时在压力下将水泥浆压经套管中的射孔孔眼。
Squeeze cementing USES pressure to force the cement through holes or perforations in the casing.
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7. 明确了射孔直径、密度及相位等与套管强度的关系。
The relationships among perforation diameter, density, phase and casing strength are clarified.
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8. 射孔孔眼具有相对较大的直径，而且射孔孔道很深。
The perforations have a relatively large diameter and the perforation tunnel is deep.
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9. 如何提高射孔深度的精度一直是射孔质量控制的难题。
Perforation quality is continuously puzzled by the accuracy of perforation depth.
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10. 本研究对聚能射孔弹的设计与研发具有一定的指导意义。
This research plays a guidance role in design and development of perforating shaped charge.
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11. 计算结果表明，除了射孔附近外，套管不会发生大程度破坏。
The calculated results indicate that the casing will not be damaged severely except near the perforated holes.
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12. 仅以射孔器设计中的几个案例说明数值模拟技术的应用状况。
Several cases about perforator designs are given to show the applications of the numerical simulation technology.
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13. 分析结果表明，不同布孔方案的射孔套管的剩余强度是不同的。
The result of analysis indicates that the remaining strength of perforating casing with different scheme for holding is different.
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14. 模型中包括射孔孔眼、套管、水泥环、油层、微环隙和横向裂缝。
The model consists of perforation, wellbore, cement casing, oil layer, micro-annulus and transverse fracture.
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15. 连通通道(射孔孔眼)的特性和位置会对井的产能产生重大影响。
The characteristics and placement of the communication paths (perforations) can have significant influence on the productivity of the well.
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16. 分别对直井和斜井平行射孔射孔器进行设计，达到精准射孔的目的。
Conducting design to vertical and horizontal well, the objective of accurate percolation is reached.
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17. 实践证明，水力射孔井能够起到改善完井效果、降低表皮系数的作用。
Water-power deep perforation well can ameliorate perforation completion and reduce skin factor of pollution during drilling.
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18. 射孔枪与套管之间的间隙过大会影响射孔效果，太小容易出现工程事故。
Perforation effect is seriously affected by the clearance between perforator and casing.
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19. 在不洁的射孔液中进行射孔会造成难以处理和去除的显著的渗透率损害。
Perforating in a dirty fluid may result in significant permeability damage that is difficult to treat and remove.
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20. 利用这种新射孔表皮模型，可以对水平井射孔进行优化使其产能最大化。
This new perforation skin model can be used to optimize horizontal well perforation and to maximize well productivity.
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21. 射孔枪与套管之间的间隙过大会影响射孔效果，太小容易出现工程事故。
Excessive clearance will influence perforating effect while over smallness may lead to engineering accident easily.
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22. 而定方位射孔技术是一种可以进行井下有方向性射孔的新型射孔工艺技术。
Perforation of the direction is a new type of perforating technology which can determine the direction under the well.
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23. 复合射孔是射孔和高能气体压裂相结合对近井地层进行改造的一项新技术。
Perfo Frac is a new technique which combines perforation with high energy gas fracturing to improve near wellbore zone.
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24. 最后，通过对几种布孔方案进行对比分析，找出了射孔套管的优选布孔方案。
Optimized scheme for holding perforation is identified by comparing different schemes for holding perforation.
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25. 为了分析影响射孔弹性能的工艺参数，将正交设计应用于射孔弹工艺研究中。
In order to analysis the technological parameters influencing the property of perforating cartridge, the orthogonal design was applied to technological study.
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26. 同时还应用射孔安全韧性判据的研究成果，论证了该J 55套管射孔开裂的必然性。
Also discussed is the inevitability of the said J55 casing perforation cracking on the basis of result from research concerning perforation safe toughness.
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27. 同时还应用射孔安全韧性判据的研究成果，论证了该J 55套管射孔开裂的必然性。
Also discussed is the inevitability of the said J55 casing perforation cracking on the basis of result from research concerning perforation safe toughness.
