[game Idea] Oil Rig

As game ideas go, they can be fun / useless, just jotting it down here before I forget: 

Worker Placement.

Oil Rig:

One is the pipe fitter, One is the worker on the pipe, one is the worker on the drill and one is the worker on the joint sealer?

You place a Pipe, and a worker, and it sucks up an oil. You then sell that oil at the end of the round for cash? hire more meeples? which represents cash/work flow.

If you still have meeples, you can drill more, BUT you draw a damage card for each round of drilling after the 1st. 

If you want to drill deeper, you need more pipes, you can place a meeple on the drill, draw a pipe from the stash, and place it under the 1st pipe (in a column) If it has no pipe fitter, you need to move a meeple down the pipe to 'fit' it. You get paid 1 oil per pipe+meeple. 

At 5th & 10th (maybe 3rd 6th and 9th?) there is a drill operator symbol, you need to place a meeple into the drill operator room to go further.

If you have meeples spare, place them into the joint sealer space, and either discard 1 damage, or maybe draw a sealer card, to counter damage.

Once you have run out of meeples, the round ends for you, excess damage takes away pipes (you can always place a meeple in the drill operator and draw 1 pipe)

Each round, you press your luck, to place more pipe without sealers, and potentially lose more pipe in the next round, or shore up with more meeples to counter the damage..

Should it be oil drawn from a deck? in sets of 1 or 2? 

Then since you might be stuck, how many meeples can you 'house' on your rig? maybe it costs 1 oil for the 1st, 2 for the 2nd, etc, but also maybe at 5, it costs 1 upkeep

The pool of oil cards is in the centre, once its 'dry' the game is over.

Meeples cost to buy, but maybe rooms on the rig cost too? Do you forgo the cost to house meeples, instead hire temp meeples for the round, to pull out more oil, because last round a LOT of 1's got drawn, so you suspect lots of 2s and 3s are left.

Maybe rig cards/boards are on display in a market, with a 1,1,1,2,3 cost. 

Rig cards might be upgraded drill, which houses 2 early drill guys, +1 pipe each.

upgraded sealer housing, 1st meeple gets a +1 seal.

upgraded meeple housing, these meeples don't go back to the bag when you end your round.