Abstract: A heating chamber is provided for receiving well effluent therein including oil, water and gas and a heated chamber is also provided for containing glycol to be heated. Heat exchange coils are disposed in the chambers and are serially connected in a loop flow path with gas pressure operated pump structure operatively associated with the flow path for pumping glycol therethrough. Gas-fired heating structure is operatively associated with the heated chamber for heating glycol therein and a gas outlet from the heating chamber comprises a source of well gas under pressure through supply structure supplying well gas to the pump and burner structures. The supply structure includes a glycol-gas contactor for drying the gas provided from the supply structure to the pump.

Abstract: A liquid desiccant regenerator is provided including an upstanding hollow reboiler having upstanding peripheral sides, a bottom and a top. A plurality of laterally space upstanding tubular flues are provided in the reboiler and open upwardly and downwardly through the top and bottom. A flue plenum chamber is disposed over the top into which the upper ends of the tubular flues open and a flue pipe opens upwardly from the plenum chamber. A combustion chamber is disposed below the bottom including low pressure gas burner structure therein and into which the lower ends of the flues open. An upper portion of the reboiler includes a lateral extension and a still column is supported from the lateral extension and is positioned relative thereto for regenerated liquid desiccant drainage from the lower end of the column into the lateral extension.

Abstract: A heating chamber is provided for receiving well effluent therein including oil, water and gas and a heated chamber is also provided for containing a heat exchange liquid to be heated. Liquid heat exchange coils are disposed in the chambers and are serially connected in a closed loop flow path with gas pressure operated pump structure operatively associated with the closed loop flow path for pumping liquid therethrough. Gas fired heating structure is operatively associated with the heated chamber for heating liquid therein and a gas outlet from the heating chamber comprises a source of well gas under pressure directed through supply structure supplying well gas to the pump and burner structures. The supply structure includes a gas flow line, in which the pump structure is serially disposed, extending from the gas source to the pump structure and thereafter to the burner structure.