英台油田利用液面资料求取地层参数可行性研究  

Feasibility research on reservoir parameter obtained by annulus liquid level data in Yingtai Oilfield

作　　者：张辉[1] 

机构地区：[1]吉林油田分公司勘探开发研究院,吉林松原138000

出　　处：《断块油气田》2007年第6期84-85,共2页Fault-Block Oil & Gas Field

摘　　要：环空液面恢复法是在压力计下不到井底情况下获得油藏参数的主要测压方法。通过对试验资料分析研究,确定英台采油厂平均压力梯度,给出了折算压力经验公式,为以后环空液面恢复法提供了依据,指出了实际采集的时间-液面数据,通过折算后的压力数据。由于各种因素的影响,导致了错误的数据,因此需要对某些数据做预处理或修正,确保压力恢复曲线不发生变化。Annulus liquid level data is useless for well testing. But it is the primary method for gaining reservoir parameter while pressure gauge can’t drop to the well bottom. By analyses the test data, we can confirm Yingtai Oilfield average formation pressure gradient as 9.704kPa/m. It aslo computes the converting pressure experience formulation for the later test and points out the factual time data-annulus liquid level data being translated the pressure data, and it is wrong for all kinds of factor .So we must deal with these data and insure that there is no change with build-up curve. By graph recognizing and model diagnosing, the relative error of interpreting pressure is 2.26%.

关 键 词：环空液面恢复法 液面折算压力 不稳定试井 试井解释 

分 类 号：TE353[石油与天然气工程—油气田开发工程]