1) unidirectional perforating
单向射孔
3) check valve bore
单向阀孔
4) single drillhole reflection
单孔反射
1.
This paper describes the working principle of drillhole radar and recommends two working patterns:single drillhole reflection and crosshole tomographic imaging.
阐述了钻孔雷达的工作原理，介绍了单孔反射和跨孔层析成像２ 种工作方式，并将其用于深部岩层岩性评价和地质异常体探测，效果显
5) oriented perforating
定向射孔
1.
Hydraulic jetting oriented perforating and fracturing in horizontal well;
水力喷射定向射孔与压裂联作技术在水平井压裂中的应用
2.
Based on analysis the mechanism about declining deformation fracturing pressure,and carried on comparison studies about perforating technology between oriented perforating and compound perforating.
根据理论分析,结合真三轴水力压裂模拟实验,得出平行于最大主应力方向定向射孔工艺有助于降低地层破裂压力及近井筒效应,提高压裂效果。
6) oriented perforation
定向射孔
1.
Study on initiation and propagation mechanism of fractures in oriented perforation of new wells;
新井定向射孔转向压裂裂缝起裂与延伸机理研究
2.
Research on oriented perforation optimization technique for fracturing wells in tight gas reservoir;
致密气藏压裂井定向射孔优化技术
3.
Combining the characteristics of oriented perforation,geological feature analysis of fracture reservoirs,sand production reservoirs,fractured reservoirs and waterflooded reservoirs shows that oriented perforation is more suitable in these reservoirs than conventional perforation.
结合定向射孔特点,分析了裂缝性储层、易出砂储层、实施压裂改造储层以及实施注水开发储层的地质特征,结果表明这些储层适宜采用定向射孔,与常规射孔相比将会取得更好的效果。
补充资料：单突触反射
单突触反射
即反射弧中只经过一次突触交替的反射，是一种较简单的反射。参见"腱反射"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条