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