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Lateral horizontal well technology is the second horizontal wells and wells after a new technology has broad prospects for development. Study is based on theoretical research branch horizontal wells , indoor experimental research, field testing research, engineering and technology research and branch cold 42 horizontal wells in the applications of research, summarizes the main types of horizontal wells , characteristics, summarized branch water Hirai technical status and progress . By analyzing the Liaohe Oilfield cold 42 horizontal wells application status and development results, summarized the applicable conditions of horizontal wells as well as in theoretical research and field application problems and limitations , based on the theoretical study of horizontal wells branch condition, experimental research status , field experimental study status, technical research status of research, summarized horizontal wells types, characteristics , production mechanism , engineering design principles and key drilling and completion technology, production capacity forecasting technology , production technology , etc. Liaohe Oilfield cold for 42 blocks done a lot of horizontal wells application field application research, analysis of horizontal wells applicability and limitations of technology , as well as in research and application problems and limitations , and the development direction and prospects were predicted for branch horizontal well technology research provides a theoretical basis and guidance. Horizontal wells in the development of water coning caused by dead oil and attic oil, Lens Reservoirs , thin reservoirs , low permeability reservoir, \water drive reservoir , high directional permeability reservoirs , multiple sets of natural fractures reservoir, tight sandstone gas , natural bitumen reservoir, residual oil, mining has made significant results , has become an important oil and gas development the advanced technology will be more widely used .
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