This sounds like something that could potentially be fun in one of those "Secret Santa" games some folks do around the holidays, where you draw cards / roll dice / whatever to determine weird alternate rules, like red kings split the pot or everyone has to pay if a pair of deuces go to showdown.
On the other extreme, it could be okay in a super-competitive game where the players are very comfortable with difficult/complicated rules. This is assuming that the players have thick skin about this kind of thing.
Outside of those extremes, I have a few issues with applying it to more normal, middle-of-the-road games:
1. It's a bit messy. Small matter, I guess, but it's a weird wrinkle that may break up the flow of the game and strike many players as awkward.
2. Some players (especially the kind who already whinge about their aces being cracked et al) are going to feel like they got screwed when someone calls for the "ocean" and it ruins their hand. Not only that, but if it also creates a new betting round, they may lose even more money, or end up folding the best hand because the growth in pot and bet size scares them off. The bigger the pot, the bigger the anger about it, and the more likely it will turn people off to the game. Being on the losing end of it will tend to feel like the other guy won in a "cheap" way.
3. Lastly, but perhaps most importantly: Every decision-making point in a poker game creates an opportunity for skilled players to gain an advantage. This is the main reason why NLHE is such a bad game for weak players in the first place; every decision is essentially open-ended with regard to amounts, and weak players regularly make serious errors in this area (in addition to errors with regard to the simple call/raise/fold part of the decision). We see this in spades in circus games as well, especially games that have discards, draws, hand splitting, etc.
Now take everything you know about NLHE being bad for weak players, and throw in this "ocean chip." It's yet another opportunity for them to screw up, whether by avoiding it out of fear/confusion or using it in bad spots that favor them only minimally (or even hurt them). Meanwhile, strong and thoughtful players will figure out ways to use it to maximum effect, further increasing their win rates against the weaker players.
As a general rule, don't implement things that will have this kind of effect unless your goal is to end up with a game full of tough players.