本文選題：通道壓裂　切入點(diǎn)：通道率　出處：《斷塊油氣田》2017年02期 　論文類型：期刊論文

【摘要】：通道壓裂鋪砂形態(tài)是顯示通道壓裂效果的重要指標(biāo)。文中采用可視化變角度縫網(wǎng)支撐劑鋪置裝置,研究了通道壓裂裂縫鋪砂形態(tài)影響因素,分析了壓裂液黏度、支撐劑質(zhì)量濃度、纖維質(zhì)量濃度、排量、射孔數(shù)、脈沖時(shí)間對(duì)鋪砂通道率的影響,并采用混合水平正交試驗(yàn)及擬水平法研究了各因素對(duì)通道率的影響程度。結(jié)果表明:支撐劑質(zhì)量濃度越低,脈沖時(shí)間越短,纖維質(zhì)量濃度越大,則通道率越高;注入排量過(guò)高或過(guò)低均對(duì)支撐劑鋪置形態(tài)不利,最優(yōu)排量為4 m3/min;分簇射孔的通道率要明顯大于連續(xù)射孔;較大的壓裂液黏度能獲得更大的通道率。通過(guò)混合水平正交試驗(yàn),得出各因素的影響程度大小順序依次為:支撐劑質(zhì)量濃度、脈沖時(shí)間、纖維質(zhì)量濃度、布孔方式、排量、壓裂液黏度。
[Abstract]:Channel fracturing sand laying form is an important index to show the effect of channel fracturing. In this paper, the influence factors of channel fracturing fracture sand-laying morphology are studied, and the viscosity of fracturing fluid is analyzed by means of visual variable angle fracture mesh proppant placement device. Effects of proppant concentration, fiber mass concentration, displacement, perforation number, pulse time on the sand laying channel rate, The influence of various factors on the channel rate was studied by mixed horizontal orthogonal test and pseudo-horizontal method. The results showed that the lower the concentration of proppant, the shorter the pulse time and the greater the fiber concentration, the higher the channel rate. Too high or too low injection displacement is unfavorable to the proppant placement, the optimal displacement is 4 m3 / min, the channel rate of cluster perforation is obviously higher than that of continuous perforation, and the greater viscosity of fracturing fluid can obtain greater channel rate. The order of influencing degree of each factor is: proppant concentration, pulse time, fiber mass concentration, pore layout mode, displacement, fracturing fluid viscosity.
【作者單位】： 西南石油大學(xué)油氣藏地質(zhì)及開發(fā)工程國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【分類號(hào)】：TE357.1
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本文編號(hào)：1557989