Patent ID: 9574427
Date: 2017-02-21
CPC Classifications: E21B

Claim:
1. A method to recover hydrocarbon gas from a seabed, the method comprising: deploying at least one autonomous, self-propelled drilling device to the seabed from a surface location; drilling a plurality of wells from the seabed into a hydrocarbon bearing formation using the at least one autonomous, self-propelled drilling device, wherein each of the wells has a respective seabed origination point; positioning a bladder over the seabed origination points of the plurality of wells; sensing a presence of hydrocarbon deposits in the hydrocarbon bearing formation using sensors located on the at least one autonomous, self-propelled drilling device; causing sublimation of the hydrocarbon deposits in the hydrocarbon bearing formation using a sublimation mechanism located on the at least one autonomous, self-propelled drilling device, thereby causing hydrocarbon gas to be released from the hydrocarbon bearing formation; and capturing the released hydrocarbon gas in the bladder.