There are many types of low permeability oil reservoirs, most of them are complex lithology oil reservoirs.
低渗透油藏的类型很多，而且大多数是复杂岩性油气藏。
The impact of starting pressure gradient must be considered due to existence of starting pressure gradient and recovery difficulty during the development of low permeability oil reservoirs.
低渗透油田由于存在启动压力梯度，开采难度很大，因此，在低渗透油田开发时必须考虑启动压力梯度的影响。
A stimulation treatment routinely performed on oil and gas Wells in low-permeability reservoirs.
在低渗透性储层中通常对油井和气井所进行的增产处理。
The oil reservoirs in Pingbei Area of Ansai Oilfield is difficult to develop because of its ultra-low permeability, micro-fracture, and low production of oil wells.
安塞油田坪北区油层渗透率特低，具有微裂缝，油井产量低等特点，为此，增加了油藏开发中的难度；
The study on air injection mainly aims at the heavy oil in China, but most of low permeability reservoirs are light oil reservoirs.
低渗透油藏大多属于轻质油藏，轻质油藏注空气已经越来越受到人们的关注。
Taking Niuxintuo oilfield as an example, ways for developing the low permeability reservoirs of Liaohe oil area high efficiently are proposed on the basis of its geologic and development features.
以牛心坨油田牛心坨油层为例，在对其地质、开发特征进行总结的基础上，提出辽河油区低渗油藏高效开发的做法。
Aim to study the water displacing oil efficiency of weak oil-wet low permeability reservoirs, displacing process and affecting factors.
目的研究特低渗弱亲油储层水驱油过程、水驱油效率及其影响因素。
However, most of undeveloped new blocks are low-grade reservoirs with many development difficulties such as super heavy oil, low permeability, thin bed and deep pay.
而尚未开发的新区大多属于超稠油、低渗、薄层或深层等开采难度较大的低品位油藏。
A new oil base fracturing fluid has been studied and reported, which can be used for developing of reservoirs under the conditions of low pressure, low permeability and water sensitivity.
研制了一种适用于低压、低渗、水敏性储集层的新型原油基压裂液体系。
During the exploration and development for the medium and low permeability oil and gas reservoirs, it has a actual value.
在中低渗油气藏勘探开发过程中，具有一定的实用价值。
To apply differential analysis and non invasion line in low permeability oil fields, this paper presents a method for identifying oil water in reservoirs.
针对吉林英坨东地区低渗透油田特点 ，应用微差识图、无侵线等方法综合研究油水层识别问题。
The filtering flow rules and water-oil displacement characteristics in deep pay and low-permeability reservoirs has some specialities.
深层低渗透率油藏的渗流规律及水驱油特性具有特殊性。
Low velocity non Darcy flow of dual media oil gas reservoirs with low permeability often makes well testing analysis more complicated.
双重介质低渗油气藏，往往存在低速非达西渗流，故该类油气藏的油气井试井分析更具复杂性。
So the mechanism study of surfactant flooding in lowering injection pressure and improving oil recovery is significant to the development of low permeability reservoirs.
因此，研究低渗油藏表面活性剂驱降压增注及提高采收率机理及方法，对有效开发低渗油藏、缓解开发中存在的突出问题具有重要的意义。
The efficiency of oil recovery with water flooding process is poor in low-permeability oil reservoirs.
低渗透油藏注水开发效果差、采收率低，而采用气驱技术是动用此类难采储量的有效方法之一。
This method has obtained an evident effect in the oil field production. The advanced water injection can enhance the level of developing low permeability reservoirs and economic benefit.
该方法在油田实际生产中取得了明显效果，对低渗及特低渗透油田开发实现效益最大化具有重要意义。
This method has obtained an evident effect in the oil field production. The advanced water injection can enhance the level of developing low permeability reservoirs and economic benefit.
该方法在油田实际生产中取得了明显效果，对低渗及特低渗透油田开发实现效益最大化具有重要意义。
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