| 1. | The affects of slowness changes in serious hole collapse interval are not ignored
所以，在扩径段双发双收声系记录的时差数据有时需要进行扩径校正。 |
| 2. | The affects of slowness changes on hole diameter opposite a receiver could not be compensated completely
计算结果表明，双发双收声系对扩径影响的补偿不彻底。 |
| 3. | The compensated ability varies with the difference of bed slowness and changes of hole diameter
随着地层时差的不同和扩径量的不同，双发双收声系的补偿能力也不同。 |
| 4. | Aerospace series - shank nuts - installation holes , 60 swage , flanges - design standard ; german version en 3149 : 1996
航空航天系列.铆接螺母. 60度扩径安装孔法兰.设计标准 |
| 5. | Study of the mechanical caliber enlargement process of longitudinally - welded pipe used for pipeline and the influence factors thereof
管线用直缝焊管机械扩径及其影响因素研究 |
| 6. | When interval of hole collapse does not change , the bigger change in hole diameter , the more poor the compensated ability
在沿井轴方向扩径段厚度一定的前提下，垂直于井轴方向的扩径量越大，双发双收声系的补偿效果越差。 |
| 7. | But when interval of hole collapse is greater or less than the eigenvalue , the difference is small , and far more from the eigenvalue when interval of hole collapse is smaller
当沿井轴方向的扩径段厚度等于扩径厚度特征值时，补偿效果最差;而大于或者小于扩径厚度特征值时，补偿效果都会变好。 |
| 8. | The new characteristics of borehole compensated ability of two transmitters and two receivers acoustic log system were given under a pulse resource and no attenuation ideal beds by numerical simulation
摘要通过数值模拟计算给出了点声源、无衰减各种理想地层条件下双发双收声系在不同扩径层段新的声速测井响应特征规律。 |
| 9. | By numerical analogue calculation , distribution rules of forced wave in the processing of explosive hole enlargement are understood , which can provide a theoretical basis for choosing to arrange medicine way and lead explosion method
通过数值模拟计算搞清了爆炸扩径过程中压力波的分布规律，为布药方式及引爆方式的选择提供了的理论依据。 |
| 10. | The relations between hole enlargement content and medicine content are obtained in the process of casing explosive hole enlargement by adopting energy conservation method , and based on ground simulated test and field test , the effects of extent of coefficient k are given
采用能量守恒法导出了套管爆炸扩径过程中扩径量与药量的关系式，通过地面模拟试验及现场试验给出了综合影响系数k的取值范围。 |
