1) directional well
定向孔
2) 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。
3) 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。
4) directional drilling
定向钻孔
1.
The system is constructed by drilling method and the air intake and the gas outlet are connected by a directional drilling hole.
介绍了对吉林省双阳煤矿边缘部分所遗留的煤层所设计的煤炭地下气化炉 ,该气化炉采用定向钻孔贯通 ,钻孔法建炉 ,通过计算可获得较大的经济和社会效
2.
As a trenchless construction method, directional drilling and PE pipe dragging is uniquely advantageous, with less impact on nearby buildings and traffic, lower cost for maintenance, better protection of the ground services, etc.
定向钻孔拖拉高密度聚乙烯平壁管(HDPE管)作为一种非开挖施工方式,具有对周围构筑物、交通的影响小,维修费用少,对管线的保护作用大等独特的优越性。
3.
Spiral and round curve methods of General Geological Coordinate System have established the basis on which the design of curved or directional drilling can be well calculated .
通用地质坐标系的似螺线法和圆弧线法为设计弯曲和定向钻孔提供了全定量计算的基础,并能在钻孔施工发生偏离时,指导选择钻孔纠斜方案。
5) oriented pore structure
定向孔隙
1.
A macroporous calcium phosphate cement scaffold with oriented pore structure is prepared by freeze casting.
利用冷冻塑形法制备了具有定向孔隙结构的大孔磷酸钙骨水泥支架。
6) directed inclined hole
定向斜孔
1.
In ground pregrouting for water-sealing of western area circulating air shaft, grouting technologies such as drilling directed inclined holes along the tangent line around the shaft, increasing the density of holes and raising the probability of taking off high -angle cracks were adopted.
针对高角度裂隙发育的石英砂岩这类特殊含水层,吸取刘庄煤矿东区几个井筒注浆施工的经验教训,在西区回风井井筒地面预注浆堵水工程中,研究采用了环绕井筒沿切线方向打定向斜孔、增加钻孔密度、提高钻孔揭露高角度裂隙的几率等注浆技术,取得了良好的效果。
补充资料：第二孔(继发孔)型缺损
第二孔(继发孔)型缺损
ostium secondary defect
是心房间隔在形成上发生障碍，一般缺损较大，多在卵圆孔附近称第二孔(继发孔)型缺损。
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