Detecting gas compounds for downhole fluid analysis
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-049/08
E21B-049/00
G01N-033/28
출원번호
US-0353321
(2012-01-19)
등록번호
US-8904859
(2014-12-09)
발명자
/ 주소
Lawrence, Jimmy
Jones, Tim G. J.
Indo, Kentaro
Yamate, Tsutomu
Matsumoto, Noriyuki
Toribio, Michael M.
Yoshiuchi, Hidetoshi
Meredith, Andrew
Lawrence, Nathan S.
Jiang, Li
Fujisawa, Go
Mullins, Oliver C.
출원인 / 주소
Schlumberger Technology Corporation
대리인 / 주소
Wright, Daryl R.
인용정보
피인용 횟수 :
0인용 특허 :
25
초록▼
A gas separation and detection tool for performing in situ analysis of borehole fluid is described. The tool comprises a sampling chamber for a downhole fluid. The sample chamber comprises a detector cell with an opening. The tool also comprises a gas separation module for taking a gas from the down
A gas separation and detection tool for performing in situ analysis of borehole fluid is described. The tool comprises a sampling chamber for a downhole fluid. The sample chamber comprises a detector cell with an opening. The tool also comprises a gas separation module for taking a gas from the downhole fluid. The gas separation module comprises a membrane located in the opening, a support for holding the membrane, and a sealant applied between the housing and the membrane or support. Moreover, the tool comprises a gas detector for sensing the gas.
대표청구항▼
1. An apparatus for downhole fluid analysis, comprising: a sampling chamber for a downhole fluid, wherein the sample chamber comprises a detector module with an opening;a gas separation module for taking a gas from the downhole fluid, wherein the gas separation module comprises a membrane located in
1. An apparatus for downhole fluid analysis, comprising: a sampling chamber for a downhole fluid, wherein the sample chamber comprises a detector module with an opening;a gas separation module for taking a gas from the downhole fluid, wherein the gas separation module comprises a membrane located in the opening, a support for holding the membrane, and a sealant applied between the membrane and the support; anda gas detector for sensing the gas. 2. The apparatus of claim 1, wherein the gas separation module is provided for the opening. 3. The apparatus of claim 1, wherein the sampling chamber further comprises a flowline, wherein the gas separation module is provided between the flowline and the detector cell. 4. The apparatus of claim 1, wherein the membrane comprises a DDR type zeolite. 5. The apparatus of claim 1, wherein the membrane comprises at least one selectively permeable layer and at least one selectively impermeable layer, such that the at least one selectively permeable layer allows one portion of the downhole fluid to pass through, and the at least one selectively impermeable layer prevents another portion of the downhole fluid from passing through the at least one selectively permeable layer. 6. The apparatus of claim 1, wherein the support is located on the membrane. 7. The apparatus of claim 1, wherein the gas comprises a carbon dioxide, a hydrogen sulfide, and/or a methane. 8. The apparatus of claim 1, wherein the gas detector comprises an infrared light source and an infrared light transducer. 9. The apparatus of claim 8, wherein the gas detector further comprises a monochromator disposed between the infrared light source and the infrared light transducer. 10. The apparatus of claim 8, wherein the detector module comprises an optical window so that the infrared light source transmits an infrared light to the detector module chamber through the optical window. 11. The apparatus of claim 1, wherein the detector module comprises a pressure compensator. 12. The apparatus of claim 11, wherein the pressure compensator is a bellows provided between the gas separation module and the detector module. 13. The apparatus of claim 11, wherein the pressure compensator comprises a buffer material which occupies an internal space of the detector module independently of the gas detector. 14. The apparatus of claim 13, wherein the buffer material comprises a liquid material. 15. The apparatus of claim 13, wherein the buffer material comprises a solid material. 16. The apparatus of claim 15, wherein the solid material is porous. 17. The apparatus of claim 15, wherein the solid material comprises a titanium dioxide. 18. A method for downhole fluid analysis, comprising: sampling a downhole fluid in a sampling chamber comprising a detector module with an opening;taking a gas from the downhole fluid by using a gas separation module, wherein the gas separation module comprises a membrane located in the opening, a support for holding the membrane, and a temperature-resistant and non-conductive sealant applied between the membrane and the support; andsensing the gas.
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