| 摘要 |
A downhole fluid properties analysis device (51) is connectable to a downhole sampling flow line (8). The downhole sampling flow line (8) has an internal diameter between 2 to 15 mm adapted to let flow the fluid (3) to be analyzed. The fluid (3) is a hydrocarbon multiphase fluid mixture from a hydrocarbon subsurface reservoir (4). The downhole fluid properties analysis device (51) comprises: - an analysis pipe portion (52); and - a first probe arranged to transmit an electromagnetic energy into the fluid (3), and a second probe (30, 30A, 30B, 70) arranged to produce a signal resulting from an interaction of the fluid with said electromagnetic energy indicative of the downhole fluid properties; The first and second probes (30A, 30B) are optical probes, the first optical probe (30A) being a light emitting probe adapted to be coupled to a light source (57), the second optical probe (30B) being a light receiving probe adapted to be connected to a spectrometer (58). Each of said optical probe (30, 30A, 30B, 70) comprises an elongated body mounted through the wall of the analysis pipe portion in a sealed manner and has a tip (36, 36A, 36B, 72), the tip being needle shaped and having an external diameter less than 1 mm. The first optical probe and the second optical probe (30, 30A, 30B, 70) are arranged such that the first and second tips of the respective optical probes project into a flow section of the analysis pipe portion and such that the first tip (36A, 72) of the first optical probe (30, 30A, 70) faces the second tip (36B) of the second optical probe (30B) at a defined distance ranging from 10 μm to 99 mm. |
