OPTICAL COUPLERS USED IN A DOWNHOLE SPLITTER ASSEMBLY

摘要

Techniques and apparatus are provided for downhole sensing using optical couplers in a downhole splitter assembly to split interrogating light signals into multiple optical sensing branches. Each optical branch may then be coupled to an optical sensor (e.g., a pass-through or an optical single-ended transducer (OSET)) or to another optical coupler for additional branching. The sensors may be pressure/temperature (P/T) type transducers. Some systems may exclusively use OSETs as the optical sensors. In this manner, if one of the OSETs is damaged, it does not affect light traveling to any of the other sensors, and sensing information from remaining sensors is still returned.

主权项

1. A splitter assembly, comprising:
a splitter base configured to couple a cable having one or more optical waveguides, for guiding light signals, disposed therein to one or more other cables having one or more optical waveguides, for guiding the light signals, disposed therein; an adapter coupled to the splitter base; and a mounting assembly configured to mount the splitter assembly to the cable, wherein the mounting assembly comprises a rod coupled to the splitter base and to the adapter, a heat sink coupled to the adapter, and a lock nut coupled to the adapter.