Dual-horizontal well pattern applied to thick oil and exploitation method for thick oil

The invention provides a dual-horizontal well pattern applied to thick oil and an exploitation method for the thick oil. The dual-horizontal well pattern comprises multiple oil exploitation horizontal wells, wherein each oil exploitation horizontal well comprises a first horizontal section disposed in an oil layer, and the first horizontal sections are disposed in parallel. The well pattern comprises at least one steam injection horizontal well, wherein each steam injection horizontal well comprises a second horizontal section disposed in the oil layer; the first horizontal sections are disposed in parallel on two sides of each second horizontal section; and the distance between each second horizontal section and the adjacent first horizontal section is 30-70m. Because of the distance between the adjacent oil exploitation horizontal well and steam injection horizontal well, crude oil which is heated by steam and located above the steam injection horizontal well can flow down under gravity and steam drive forc