应用反井钻机开挖导井可达到快速安全的效果。
Application of inverse well drill will permit quick and safe excavation of pilot shaft.
简述了反井钻机的工作特点及其在吉沙水电站工程的应用,给出了施工程序及质量保证措施。
The working traits of raising drilling rig and its application in Jisha Power Station are depicted briefly. Construction procedure and measures for quality guarantee are offered.
反井法施工斜井为自下而上进行,适合倾角不大的斜井施工,但不适宜运用于断面较大的斜井。
On the contrary, the back well drill method is from bottom to top, which is suitable for the small inclined Angle, but not for the large shaft section.
本文介绍了反井钻这一新型的竖井和斜井开挖施工设备,以及该设备在国内水电工程中的应用。
One advanced construction equipment for vertical and inclined shafts, named Raise Reaming Machines is introduced in this paper, together with its first application in Chinese hydropower project.
蒲石河抽水蓄能电站引水系统中的竖井开挖,拟采用反井钻机进行导井开挖,人工手风钻钻孔扩挖的方式施工。
The sequence of excavation for the shaft of diversion system at Pushihe storage power station is to excavate the pioneer well used by back well boring machine, then by hand air drill to expand it.
实践证明,对于短位移、浅垂深的水平井钻进开发,实施这种“反勾”型方案是切实可行的。
Practice testifies that practice of this kind of reverse well track type project is feasible for the drilling and development of short displacement, the shallow vertical depth horizontal well.
目前,在整体压裂优化设计方面,人们对五点井网和反九点井网的研究较多,而对菱形反九点井网的研究较少。
At present, more integral fracturing design research focus on five - spot well network and nine - spot well network but little on rhombus anti - nine - spot well network.
利用该模式并结合钻柱力学三维分析,可以预测定向井井眼轨迹,还可以利用定向井井史资料,反求有关系数。
Combined with the BHA analysis, the models are used to realize the prediction of drilling trajectory and to back-calculate the related coefficients from the well history information.
同时,在近井带还会形成反渗吸水锁效应,从而进一步加剧近井带地层伤害,对低渗低产凝析气井,这一现象尤为严重。
Meanwhile, reverse imbibitions water blockage effect would be appeared to further damage the near the wellbore formation, especially in the low permeability and low productivity condensate gas Wells.
本文通过最小平方反滤波和最小熵反滤波两种方法对测井曲线进行处理,就可以消除井与围岩的影响,实现准确分层定厚的目的。
By using the methods of least square and minimum entropy deconvolution to process the well-log, the effect of well and wall rocks can be removed, so that the thickness of each layer can be determined.
反滤回灌井是地下水库中一种有效的回灌设施,它由回灌井和井口反滤层组成。
Recharge well with a filter layer is a kind of valid recharge facilities in groundwater reservoirs.
文中介绍了将尾管坐入潜山非主力油层,再利用潜山地层漏失进行反挤水泥固井。
This paper presents a reverse cement squeezing technique which sets the liner in the non major buried hill reservoir and then cements the liner utilizing the lost circulation in buried hill interval.
注气吞吐是解除凝析气井单井反凝析油堵塞问题的有效方法之一。
Dry gas injection huff and puff is one of the effective techniques to remove the retrograde condensate blocking of condensate gas Wells.
解除近井反凝析堵塞和水锁是深层低渗凝析气藏开发必须解决的难题。
Removal of the near-wellbore plug and gas lock resulted from retrograde condensation is a key problem to be tackled during the recovery of deep-buried, low-permeable condensate gas reservoirs.
非完整反滤回灌井井流运动由砂反滤层的竖向流和非完整回灌井井流组合而成。
Vertical flow of the sandy filter layer and well flow of the common partially penetrating recharge well are combined to make a well flow of the partially penetrating recharge well with a filter layer.
曲观反映出油藏外流体反在注入井和出产井之间的活动轨迹。');
Direct-viewing reflects in the oil deposit the fluid between the injection well and the development well path.
菱形反九点井网有两个可调的井排方向,是适合于裂缝和砂体方向性明显油藏的最佳井网。
The inverted nine - spot rhombus pattern has two adjustable directions of well array.
采用菱形反九点井网,通过超前注水、优化压裂技术提高单井产量,可以实现白豹长6油藏的高效开发。
Using anti-9:00 rhombus pattern, through advanced injection, optimize fracturing technology to increase production of single well can be achieved Baibao High oilfield Chang6 reservoir development.
实例对比表明,对于没有关井测压的气井,可以用该方法反求气藏参数。
Case correlation study shows that for gas Wells without shut-in pressure survey, this method can be used to resolve the reservoir parameters.
实例对比表明,对于没有关井测压的气井,可以用该方法反求气藏参数。
Case correlation study shows that for gas Wells without shut-in pressure survey, this method can be used to resolve the reservoir parameters.
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