发明授权
- 专利标题： Isokinetic sampling method and system for multiphase flow from subterranean wells
- 专利标题（中）： 来自地下井的多相流等动力取样方法和系统
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申请号： US12093554申请日： 2006-09-28
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公开(公告)号： US07942065B2公开(公告)日： 2011-05-17
- 发明人: Cheng-Gang Xie
- 申请人： Cheng-Gang Xie
- 申请人地址： US MA Cambridge
- 专利权人： Schlumberger Technology Corporation
- 当前专利权人： Schlumberger Technology Corporation
- 当前专利权人地址： US MA Cambridge
- 代理商 Helene Raybaud; James McAleenan; Brigid Laffey
- 优先权： GB0523699.7 20051122
- 国际申请： PCT/GB2006/003598 WO 20060928
- 国际公布： WO2007/060386 WO 20070531
- 主分类号： G01F1/74
- IPC分类号： G01F1/74
摘要：
The invention relates in a one aspect to a method or apparatus for measuring flow properties of a multiphase fluid stream flowing in a pipeline comprising means for sampling, with a sampling probe, a portion of the fluid stream; for measuring a differential pressure between a first pressure of the fluid stream in the pipeline and a second pressure of the portion of the fluid stream in the sampling probe; for controlling flow rate of the sampled portion, wherein the flow rate of the sampled portion is controlled to provide for nullification of the differential pressure in order to obtain substantially isokinetic sampling of the fluid stream; for measuring properties of the portion of the fluid stream; and for processing the measured properties to determine the flow properties of the multiphase fluid stream flowing in the pipeline, wherein the above elements do not require- or are performed without the determination of the density of fluid in the fluid stream through nuclear radiation methods.