These provide access to the central bore of the well underneath most of the heavy valves which should have closed off the flow of oil, but for some reason did not.
这些为连接在许多沉重的真空阀下的钻井中心的钻孔提供了条件。这些真空阀本应该阻止石油的外泄，但出于某种原因没有做到这一点。
In sticky oil production, economy, efficiency, environmental protection for well bore to reduce density is very important.
在稠油开采中，经济、有效、环保的井筒降粘技术是十分重要的。
Application of insulation tech for well bore breaks off the heat exchange which is economic and efficient, and has gained a satisfied effect in test for dense oil well of Bohai oilfield.
井筒保温管技术的应用，阻止式隔绝了热交换的发生，经济、有效，在渤海稠油井测试中取得了满意的作业效果。
Xiangxiqun Formation generally has the characteristic of low bore and low permeability in Chuanzhong oil field By fracturing reconstruct, most of Wells have acquired the business value.
川中香溪群储层普遍具低孔、低渗特性，大部分井只有通过压裂改造，才能获得商业开发价值。
The power distribution of heavy oil well along well-bore in medium-frequency heating is investigated by means of distributing parameter circuit model.
用分布参数电路模型对稠油油井中频加热功率沿井深的分布进行了深入研究。
The finite element method is used for computing the displacement of well bore near the oil reservoir in the horizontal fracturing well with 1 ~ 3 fractures.
用有限元法分别对有1 ~3条水平裂缝井眼在压裂时油层附近的井眼位移分布进行了计算。
To inhibit scale formation in oil well, a new type of solid scale inhibitor, which can be hung to oil pump in well bore, was made mainly from phosphonic type inhibitors.
研究了以膦酸盐防垢剂为主要材料的、可悬挂于抽油泵下面使用的固体防垢块。
In the organism is processed, the processing quality of the precise bore hole process will influence the performance, such as power, oil consumption, noise of the diesel engine, etc. directly.
机体加工中，精镗孔工序的加工质量将直接影响柴油机的功率、油耗、噪声等性能。
The bearing bore and pump bore of external bearing type are separated by mechanical seal and skeleton oil seal.
外置轴承型的轴承腔与泵腔用机械密封及骨架油封或填料隔开，密封性好。
This model can be used to analyze the rule of fluid flow near well bore in the elastic-plastic oil reservoir.
该模型可用于研究井眼周围储层的变形及渗流规律。
This model can be used to analyze the rule of fluid flow near well bore in the elastic-plastic oil reservoir.
该模型可用于研究井眼周围储层的变形及渗流规律。
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