第三章中推导了两种不同储层条件下的水平井非达西稳态渗流方程。
In chapter three, horizontal well non-darcy steady flow productivity formula for two different reservoir 'conditions were derived.
用等值渗流阻力法解决了这个难题，建立了裂缝性低渗透油藏稳态渗流的理论模型。
Using the steady-state productivity equation, a conventional method, is difficult to theoretically deal with the randomly dispersed natural fractures.
为了研究低渗透砂岩的启动压力梯度，设计了一种非稳态渗流中测量压力的试验方法。
The threshold pressure gradient of low permeability sandstone was studied experimentally by measuring the pressure attenuation in an unsteady seepage flow.
通过分析理论解，从中得出稳态降深方程、稳态渗流速度方程、准稳态时间方程和理想井间距方程。
Equations of steady drawdown, seepage velocity, quasi steady time and ideal well distance were obtained through analytic seepage equation.
本文主要的研究内容和成果如下：1在非饱和土力学的基础上推导了二维渗流控制控制方程的稳态渗流方程和瞬态渗流方程。
The main research content and result are as follows: 1 The two-dimensional governing equations for steady-state flow and transient flow are derived based on unsaturated soil mechanics.
借鉴美国现有模型，结合我国现场实际情况，建立了二维煤层气垂直井的非平衡拟稳态井底渗流数学模型。
Two dimensional non equilibrium sorption pseudo steady state model of coalbed methane for vertical well is derived in combination of an American model with the filed situation.
借鉴美国现有模型，结合我国现场实际情况，建立了二维煤层气垂直井的非平衡拟稳态井底渗流数学模型。
Two dimensional non equilibrium sorption pseudo steady state model of coalbed methane for vertical well is derived in combination of an American model with the filed situation.
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