Formation mechanism of pores in partial penetration weld for titanium alloy 鈦合金激光未穿透焊氣孔形成的機(jī)理研究
Standard test method for analytical procedure for analyzing the effects of partial penetration of control well and determining the horizontal and vertical hydraulic conductivity in a nonleaky confined aquifer 控制井部分滲透效應(yīng)分析和無泄漏封閉蓄水層的水平和垂直液力傳導(dǎo)性測定標(biāo)準(zhǔn)試驗方法
A pressure draw - down equation is first established for partial penetration gas well in darcy - flow dominated domain in bottom water reservoir , and then a binomial deliverability equation is obtained by combining with non - darcy binomial radial flow equation 文章首先導(dǎo)出底水氣藏打開不完善井在達(dá)西區(qū)域的壓降公式,再結(jié)合非達(dá)西區(qū)域的二項式產(chǎn)能公式最終得到底水氣藏向打開不完善井流動的二項式產(chǎn)能公式。
Drainage domain of partial penetration gas well in bottom water reservoirs consists of the following two parts : ( 1 ) non - darcy binomial radial flow near the well ; ( 2 ) three dimensional darcy flow in areas far away from the partial penetration gas well due to bottom water drive 摘要底水打開不完善氣井的滲流是由井附近區(qū)域遵循二項式徑向流規(guī)律的非達(dá)西流動及此區(qū)域外遵循由底水驅(qū)動向不完善井三維達(dá)西流動兩部分組成。