The phrase "extending well beyond" is correct and usable in written English.
You can use it to indicate that something is far greater in terms of scope, range, or amount than what was previously known or expected. For example: "Our research has revealed a much more complex network of connected people, extending well beyond what had been initially expected."
For patients who experience negative outcomes, their pursuit of compensation, whether financial or otherwise, may draw on over an extended period of time, quite possibly with little result, extending well beyond the post-operative recovery period.
Corporations have become increasingly global--their structures, activities and influence extending well beyond national boundaries.
These changes occur at scales extending well beyond the local scale of an individual wetland.
But these results are the first concrete proof that this skill gap is extending well beyond school and into adulthood.
Agreement between simulation and data in both experiments is quite good, often extending well beyond the cores of distributions.
At Quiksilver, where sales have soared from $193 million in 1996 to $516 million last year, surfer style is seen as extending well beyond the beach.
While the court battle over Napster is being waged on American soil, use of the online music service is extending well beyond the borders.
But he also appealed to a wider fear, which seems to have taken widespread root in French society, extending well beyond Le Pen's normal constituency.
And the vestiges of a Team GB extending well beyond the track – several thousand T-shirts have been dug out for the occasion – all in it together.
Health professionals have a responsibility extending well beyond nonparticipation in torture; the historic maxim is, after all, "First do no harm". These health professionals did the polar opposite.
These uncorroborated assumptions then travel, appearing as "flags" on the case management systems of a range of agencies extending well beyond the criminal justice system.
