Drilled well series and paralleled heat exchange systems

A system for exchanging thermal energy between a fluid medium and the earth comprising:

• a plurality of boreholes drilled in the earth at spaced apart but adjacent locations;
• a header positioned above each borehole, each header having a first supply port, a second supply port, a first return port, a second return port, a borehole inlet port and a borehole outlet port, said supply ports and said borehole inlet port being in open communication with each other, and said return ports and said borehole outlet port being in open communication with each other, and the header having a partition between said supply ports and said return ports, said partition having means to permit the flow of air therepast but preventing substantial fluid flow therepast;
• first conduits connecting the supply ports of adjacent headers to each other and second conduits connecting return ports of adjacent headers to each other;
• a down pipe connected to the said borehole inlet port of each header and extending into the said borehole below each header;
• an up pipe connected to the said borehole outlet port of each header and extending into the said borehole below each header;
• and
• means adjacent the lower end of each said borehole to connect the lower end of each said down pipe and said up pipe, whereby fluid introduced in said first conduits flows into said down pipe and through said up pipe to said second conduits in parallel flow paths to exchange heat of the fluid with the earth.

A system for exchanging thermal energy between a fluid medium and the earth comprising:

• a plurality of elongated openings in the earth at spaced apart but adjacent locations;
• a header positioned at each elongated opening, each header having a supply inlet, a return outlet, an exchange pipe inlet and an exchange pipe outlet, said supply inlet communicating with said exchange pipe inlet and said return outlet communicating with said exchange pipe outlet, a partition within said header separating said supply inlet from said return outlet, said partition having means for the passage of air while at least substantially prohibiting the passage of fluid therepast;
• a first exchange pipe connected at its first end to said exchange pipe outlet of each said header and extending into said earth elongated opening;
• a second exchange pipe connected at its first end to said exchange pipe inlet of each said header and extending into said earth elongated opening, the second end of said first exchange pipe and the second end of second exchange pipe being connected to each other in said earth elongated opening at a point spaced from said header;
• and
• conduit means connecting said supply inlets and return outlets of said headers for conveyance of fluid through said first and second exchange pipes in each of said elongated openings for transfer of thermal energy of fluid with the earth surrounding said earth elongated openings.

A system for exchanging thermal energy between a fluid medium and the earth comprising:

• a plurality of elongated openings in the earth at spaced apart but adjacent locations;
• a header positioned at each elongated opening, each header having a first supply port, a second supply port, a first return port, a second return port, an exchange pipe inlet port and an exchange pipe outlet port, said supply ports and said exchange pipe inlet port being in open communication with each other, and said return ports and said exchange pipe outlet port being in open communication with each other, and the header having a partition between said supply ports and said return ports, said partition having means to permit the flow of air therepast but preventing substantial fluid flow therepast;
• first conduits connecting the supply ports of adjacent headers to each other and second conduits connecting return ports of adjacent headers to each other;
• a first exchange pipe connected to the said exchange pipe inlet port of each header and extending into the said elongated opening in the earth at which the header is positioned;
• a second exchange pipe connected to the said exchange pipe outlet port of each header and extending into the said elongated opening in the earth at which the header is positioned;
• and
• means at the second ends of said first and second exchange pipes to connect them together whereby fluid introduced into said first conduits flows into said first exchange pipes and through said second exchange pipes to said second conduits in parallel flow paths to exchange heat of the fluid with the earth.