Intelligent treatment device for downhole gas invasion while drilling

An intelligent treatment device for downhole gas invasion while drilling, comprising:

• a drill string, wherein an inner end of the drill string close to a drill bit is provided with a gas collection chamber, a gas detection chamber, and a gas treatment chamber that are sealed and connected in sequence from bottom to top via gas pipes;
• a side wall of the gas collection chamber coincides with a side wall of the drill string and is provided with an inlet window;
• the inlet window is covered with a gas-permeable and hydrophobic semi-permeable membrane;
• a liquid level sensor and a collection chamber pressure sensor are disposed at an inner upper part of the gas collection chamber;
• a water storage chamber is disposed below the gas collection chamber in the drill string;
• and the water storage chamber is connected to the gas collection chamber via a water pump and a liquid valve;
• the gas pipe between a top of the gas collection chamber and a bottom of the gas detection chamber is provided with a gas check valve;
• an optical lens assembly is disposed at an inner middle part of the gas detection chamber;
• a light emitter is disposed below the optical lens assembly, and a light detector is disposed above the optical lens assembly;
• light emitted by the light emitter passes through the optical lens assembly and is received by the light detector;
• the light emitter and the light detector are respectively connected to light converters;
• and a side of the gas detection chamber comprises a lower part provided with a detection chamber temperature compensator and an upper part provided with a detection chamber temperature sensor and a detection chamber pressure sensor;
• the gas pipe between a top of the gas detection chamber and a bottom of the gas treatment chamber is provided with a gas pump and a gas check valve;
• and a hydrogen sulfide treatment chamber and a hydrocarbon treatment chamber are disposed in sequence from bottom to top in the gas treatment chamber;
• a side of the hydrogen sulfide treatment chamber is provided with an inlet pipe;
• the inlet pipe comprises an inlet end communicating with a tail end of the gas pipe and an outlet end connected to a U-shaped pipe;
• the U-shaped pipe is filled with an alkaline solution;
• an end of the U-shaped pipe away from the inlet pipe is connected to a drying pipe;
• the drying pipe is filled with a gas desiccant;
• an end of the drying pipe away from the U-shaped pipe is connected to a connecting gas pipe;
• and an end of the connecting gas pipe away from the drying pipe extends out of the hydrogen sulfide treatment chamber and extends into the hydrocarbon treatment chamber;
• the hydrocarbon treatment chamber is internally provided with a treatment passage and a discharge cavity;
• an outlet end of the connecting gas pipe extends into the treatment passage and is located at a bottom of an end of the treatment passage;
• a bottom surface of the treatment passage is provided with a conveyor belt;
• an adsorption temperature compensator is disposed below the conveyor belt;
• an adsorption temperature sensor and an adsorption pressure sensor are disposed on an inner top of the treatment passage;
• a top surface of the treatment passage is provided with an adsorption solid storage cavity;
• a bottom of the adsorption solid storage cavity is provided with an openable storage door communicating with an interior of the treatment passage;
• an end of the treatment passage close to a tail end of the conveyor belt is connected to the discharge cavity, and a connection position is provided with an openable treatment door;
• an inner upper part of the discharge cavity is provided with a storage tank for storing thermoplastic rubber;
• a bottom of the storage tank is provided with a storage temperature sensor and a storage temperature compensator;
• a side bottom of the storage tank is provided with a liquid discharge pipe with a liquid discharge valve;
• a rotating plate is disposed below the liquid discharge pipe;
• the rotating plate comprises one end located below the openable treatment door and forming a clearance fit with an inner wall of the discharge cavity and another end fixed in the discharge cavity via a rotating shaft;
• an end of the rotating shaft is connected to a rotating motor;
• a guide plate is disposed in the discharge cavity below the rotating plate;
• a side wall of the discharge cavity at a tail end of the guide plate coincides with the side wall of the drill string;
• and an openable discharge door is disposed at the side wall of the discharge cavity at the tail end of the guide plate.