中国的大多数气藏属于低渗气藏。
Among the gas reservoirs found so far in China, most are low permeability reservoirs.
以某低渗气藏d 15井、DK13井为例介绍了该方法的操作步骤和实施效果。
The process steps and application effects of this method are described with well D15 and well DK13 of a low-permeability gas reservoir as the examples.
致密低渗气藏开发过程中储集层存在应力敏感，不同的试验方法评价结果差异很大。
There exist big differences in studied result with different test methods for dense reservoir rock in low permeability gas pool is sensitive to the stress.
文章建立了低渗气藏耦合流动数学模型，该模型考虑了非达西效应和介质变形因素的影响。
The mathematical model of coupled flow for low permeable gas reservoirs is set up in the article. The model considers the influence of non-Darcy flow effect and medium deformation.
结果表明影响低渗气藏的主要因素有应力作用、启动压力梯度、渗透率、滑脱效应、水锁效应等。
It is indicated that the main factors affecting low permeability gas reservoir are stress action, start-up pressure gradient, permeability, slippage effect, and water blocking effect etc.
水锁损害严重影响气藏开发效果，并成为低渗致密气藏的主要损害类型之一，对气藏的渗透能力造成严重的损害。
Results studied in worldwide have shown that the water block affects seriously development effects and becomes one type of the major damages for low permeability gas reservoirs.
川西须家河组2段气藏属于低渗低孔致密深层气藏，地层压力和破裂压力高。
Gas reservoir in Xujiahe Section 2 in west Sichuan are low porosity, low permeability, deep, high formation pore and fracture pressure, etc.
结合川西地区致密砂岩气藏低孔渗的地质特点，对复合技术进行了研究。
This article studies this composite technology by taking the geologic features of low porosity and low permeability of tight gas sands in West Sichuan.
川西地区目前已投入开发的侏罗系气藏，大多属低渗致密砂岩气藏。
Most Jurassic gas pools in west Sichuan district that have been put into development currently, belong to low-permeable dense sandstone gas pool.
论述了致密砂岩气藏特低渗形成的原因：即先天的沉积因素和后天的成岩作用等。
This paper reviews the forming reasons of extremely low permeability of tight sandstone gas reservoir, including congenital aggradation and acquired diagenesis.
综合可知，利用灰色关联度分析法预测低渗砂岩气藏的水锁伤害是切实可行的。
Comprehensively, it is feasible to predict water block damages of low-permeability sandstone reservoirs by the grey correlation method.
综合可知，利用灰色关联度分析法预测低渗砂岩气藏的水锁伤害是切实可行的。
Comprehensively, it is feasible to predict water block damages of low-permeability sandstone reservoirs by the grey correlation method.
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