Preheat pan. Season scallops. Saute scallops in some butter and oil. Set scallops aside in a warm place.
Cut the corn off the cob. Mince any scallop trimmings and broken pieces. Deglaze the pan with the white wine. When almost evaporated, add the minced scallops and the corn.
Add some chicken stock about a half cup at a time.
Stir until most of the stock is absorbed (this is like a risotto). Then add some more stock and continue till pasta reaches desired degree of tenderness. If you use all the stock, you can add water. Adjust seasonings.
When the pasta is done, stir in the cream, tarragon, and juices that accumulated around the scallops.
Place some of the pasta corn mixture on the plate, and then arrange scallops on top.