Oil Spill Fix
This idea is driven by the supreme urgency of getting some type of fix in place immediately. The basic idea is to construct a large parachute-type membrane (kevlar). Scale could range is size from 20’ to 100’+ in diameter. The rim of the chute would be constructed like a hollow donut that could be filled selectively with air or ballast. Attached to the center of the chute is a large tube. Large vents on either side of the tube could be drawn open to allow the methane hydrate to escape during installation and then closed once the chute is secured in place. The rim could be selective tightened/cinched like a lasso once it was on target.

A. The chute is lowered over the existing failed blow out preventer and ruptured pipes (which potentially would be trimmed off by the remotely operated underwater vehicles) currently being operated on site. The size the of the rim could cover a larger area and eliminate the need to drop precisely on top of key structures.

B. The inflatable rim is carefully evacuated and replaced with ballast to create a controlled fall around the perimeter of the leak site.

C. The rim is pumped full of concrete, the chute collapses and stabilizes around the current blowout structure (secured by tethers from the ROVs. (A secondary rigid pipe could be inserted through the large tube and into individual pipes/ruptured blowout structure. The chute provides stability and guidance for secondary internal structure attachments.)
The tube/pipe then pumps out the the fluid at the rate of flow - currently estimated at 2 to 3 gallons/second (200,000 gallons/day)
As soon as a more permanent solution is ready, it is lowered on top of the chute and/or the chute is quickly cut away - with no impediment to future construction.
If the above scenario fails, the chute could be used as a form to direct a controlled pour of some form or chemical seal or concrete to cap the existing leak.