摘要
常规试油不仅可以了解油井的产量、液性,还可获得求产期间的压力资料,如果进行完井评价(如表皮系数、流动系数、外推原始地层压力的解释)至少需要测稳48小时,并且对于低压低渗油藏由于地层流动慢,还不能测到径向流,这样不仅延长了试油周期、还延误了油井的投产时间。本文对于常规低压低渗井的试油测试资料的解释提出了一种新的方法,现场只需测试10-16小时,应用压力数据对油井射孔完成的完善程度进行评价,求得表皮系数S、地层流动系数kh/μ以及外推地层压力P r并可以通过不同压力下的产量数据进行油井产能预测,对下步的举升提供依据。经过现场应用,该方法简单可行,可准确的对低压低渗井进行完井评价和产能预测。
The convention tests not only may oil, but also may obtain the production pressure understand the output of oil well and the character of the material, if carries on the well completion appraisal （for example skin factor, flow coefficient, extrapolation initial formation pressure explanation） at least needs to measure the steady 48 hours, and the low pressure and low permeability reservoir because of the formation flows slowly cannot measure radial flow, like this not only lengthened test cycle, but also delays the oil well to go into production the time. This article proposes one new method for the low pressure and low permeability wells of test material explanation, only need 10-16 hour to test on the spot, the application pressure data to carry on the appraisal for perforating completion of completeness degree of oil wells, obtained skin factor S, the formation flow coefficient kh/μ, as well as extrapolation formation pressure Pr and may carry on the oil well production forecast through the different pressure under output data , to pro- vided the basis for next step lifting. After field application, this method is simple and feasible, and accurate to carry on the well completion appraisal and production forecast for the low pressure and low permeability wells.
出处
《内蒙古石油化工》
CAS
2007年第5期322-325,共4页
Inner Mongolia Petrochemical Industry
关键词
试油
射孔
试井分析
完井
产能
分析方法
testing for oil
perforation
well test evaluation
well completion
deliverability
analytical approach
