Water cut measurement with improved correction for density
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G12B-013/00
G01C-025/00
출원번호
US-0273613
(2005-11-14)
등록번호
US-7334450
(2008-02-26)
발명자
/ 주소
Scott,Bentley N.
출원인 / 주소
Phase Dynamics, Inc.
인용정보
피인용 횟수 :
1인용 특허 :
9
초록▼
Methods of correcting on-line analyzer measurements of the content of a first component, e.g., water, in a multiple-component fluid, e.g., petroleum, are provided. The first component content measurements in a flowing multiple-component fluid may be taken using an on-line analyzer. Mixture density
Methods of correcting on-line analyzer measurements of the content of a first component, e.g., water, in a multiple-component fluid, e.g., petroleum, are provided. The first component content measurements in a flowing multiple-component fluid may be taken using an on-line analyzer. Mixture density measurements that correspond to the first component content measurements may also be taken using a densitometer. Next, an offset value for each first component content measurement may be calculated based on the following equations: description="In-line Formulae" end="lead"if the first component content measurement is ≦ a predetermined content set point, offset=slope correction factor��(the corresponding mixture density measurement-a calibration density); and (a)description="In-line Formulae" end="tail" description="In-line Formulae" end="lead"if the first component content measurement is > the predetermined content set point, offset=the offset value calculated at the predetermined content set point. (b)description="In-line Formulae" end="tail" The first component content measurements may then be corrected based on the respective offset values.
대표청구항▼
What is claimed is: 1. A method of correcting on-line analyzer measurements of the content of a first component in a multiple-component fluid, comprising: correcting first component content measurements taken using an on-line analyzer based on an offset value calculated for each first component con
What is claimed is: 1. A method of correcting on-line analyzer measurements of the content of a first component in a multiple-component fluid, comprising: correcting first component content measurements taken using an on-line analyzer based on an offset value calculated for each first component content measurement using the following equations: description="In-line Formulae" end="lead"if the first component content measurement is ≦ a predetermined content set point, offset=slope correction factor��(a corresponding mixture density measurement-calibration density); and (a)description="In-line Formulae" end="tail" description="In-line Formulae" end="lead"if the first component content measurement is > the predetermined content set point, offset=the offset value calculated at the predetermined content set point (b).description="In-line Formulae" end="tail" 2. The method of claim 1, wherein the on-line analyzer comprises a capacitance analyzer, a RF analyzer, a microwave analyzer, or combinations thereof. 3. The method of claim 1, wherein the slope correction factor is 0.03%/kg/m3. 4. The method of claim 1, wherein the slope correction factor is 0.16%/�� API. 5. The method of claim 1, wherein the corresponding first component density measurements are taken using an on-line densitometer. 6. The method of claim 1, wherein the first component is water, and a second component in the multiple-component fluid is oil. 7. The method of claim 6, wherein the predetermined content set point is 5% water. 8. A method of correcting on-line analyzer measurements of the content of a first component in a multiple-component fluid, comprising: taking first component content measurements in a flowing multiple-component fluid using an on-line analyzer; taking mixture density measurements that correspond to the first component content measurements using a densitometer; calculating an offset value for each first component content measurement based on the following equations: description="In-line Formulae" end="lead"if the first component content measurement is ≦ a predetermined content set point, offset=slope correction factor��(the corresponding mixture density measurement-a calibration density); and (a)description="In-line Formulae" end="tail" description="In-line Formulae" end="lead"if the first component content measurement is > the predetermined content set point, offset=the offset value calculated at the predetermined content set point; and (b)description="In-line Formulae" end="tail" correcting the first component content measurements based on the respective offset values. 9. The method of claim 8, wherein the on-line analyzer comprises a capacitance analyzer, a RF analyzer, a microwave analyzer, or combinations thereof. 10. The method of claim 8, wherein the slope correction factor is 0.03%/kg/m3. 11. The method of claim 8, wherein the slope correction factor is 0.160%/�� API. 12. The method of claim 8, wherein the densitometer comprises an on-line densitometer. 13. The method of claim 8, wherein the first component is water, and a second component in the multiple-component fluid is oil. 14. The method of claim 13, wherein the predetermined content set point is 5% water. 15. A method of correcting on-line analyzer measurements of water content in a multiple-component fluid, comprising: taking water content measurements in a multiple-component fluid using an on-line water analyzer as the fluid flows through a pipeline or into or out of a tank; taking wet density measurements that correspond to the water content measurements using a densitometer; calculating an offset value for each water content measurement based on the following equations: description="In-line Formulae" end="lead"if the water content measurement is ≦ a predetermined water content set point, offset=a slope correction factor��(the corresponding wet density measurement-a calibration density); and (a)description="In-line Formulae" end="tail" description="In-line Formulae" end="lead"if the water content measurement is > the predetermined water content set point, offset=the offset value calculated at the predetermined water content set point; and (b)description="In-line Formulae" end="tail" correcting the water content measurements based on the respective offset values. 16. The method of claim 15, wherein the on-line analyzer comprises a capacitance analyzer, a RF analyzer, a microwave analyzer, or combinations thereof. 17. The method of claim 15, wherein the multiple-component fluid comprises water and oil. 18. The method of claim 15, wherein the predetermined water content set point is 5%. 19. The method of claim 15, wherein the slope correction factor is 0.03%/kg/m3. 20. The method of claim 15, wherein the slope correction factor is 0.16%/�� API.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (9)
Dutton Robert E. (Louisville CO), Automatic well test system and method of operating the same.
Garcia-Golding Fernando (Caracas VEX) Giallorenzo Mario (Caracas VEX) Moreno Noel (Caracas VEX) Alvarez Cesar (Caracas VEX) Chang Victor (Caracas VEX), Method and apparatus for determining the percentage water condent of oil in water emulsion by specific admittance measur.
Marrelli John D. (Houston TX) Siddiqui Farhan (Katy TX), Method and apparatus for determining watercut fraction and gas fraction in three phase mixtures of oil, water and gas.
Helms David A. (Houston TX) Hatton Gregory J. (Houston TX) Durrett Michael G. (Houston TX) Dowty Earl L. (Katy TX) Marrelli John D. (Houston TX), Microwave water cut monitor.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.