发明名称 |
APPARATUS AND METHOD FOR FLUID PHASE FRACTION DETERMINATION USING X-RAYS |
摘要 |
An apparatusfor determining fluid phase fraction of a multiphase fluid mixture (13) comprises: - a x-ray generator (20) arranged to emit a x-ray radiation spectrum comprising a low energy region and a high energy region, the high energy region including a Bremsstrahlung spectrum; - a pipe section (27) through which the multiphase fluid mixture (13) flows comprising a measurement section (28), said measurement section (28) being coupled to said x-ray generator (20); -a detector (30) coupled to said measurement section (28) and arranged to detect x-ray radiation that has passed through said multiphase fluid mixture (13), the detector (30) being coupled to a multichannel analyzer (32) producing a measurement output comprising a low energy (LE) and high energy (HE) measurement counts; wherein the measurement output further comprises a low energy (LV) and high energy (HV) control counts, in a low energy and high energy control windows located on an edge of the Bremsstrahlung spectrum, respectively; and wherein the apparatus further comprises an electrical parameter control arrangement (33) coupled to the x-ray generator (20) and the detector (30), the electrical parameter control arrangement (33) being arranged to calculate a first ratio of the high energy control count relative to the low energy control count (RV=HV/LV)and a second ratio of the high energy measurement count relative to the low energy measurement count(RE=HE/LE), and to adjust the electrical operation of the x-ray generator (20) based on an electrical parameter control function (FC(V)) of said ratios that minimize a dependence of the electrical operation of the x-ray generator on the fluid phase fraction of the multiphase fluid mixture (13) flowing in the measurement section (28). |
申请公布号 |
WO2013046159(A1) |
申请公布日期 |
2013.04.04 |
申请号 |
WO2012IB55179 |
申请日期 |
2012.09.28 |
申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED;KORKIN, ROMAN;ZAKHAROV, LEV;ZHDANEEV, OLEG |
发明人 |
KORKIN, ROMAN;ZAKHAROV, LEV;ZHDANEEV, OLEG |
分类号 |
G01N23/087;G01N23/12;G01N33/28 |
主分类号 |
G01N23/087 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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