The Da Qing Oil Field Researching On The Scale Application Of Horizontal Well Technology

Development techniques of horizontal wells becomes important ways of stimulation in peripheral low permeable oil field, But as increasing about the number of horizontal wells in Daqing Oilfield. The horizontal well seeking and plugging water, different segmentation water injection, lifting technology and other supporting technologies need to constantly improve. Therefore, we should carry out research on horizontal well matching technology, in order to extend the horizontal well development.This article discusses how to research on horizontal well matching technology, it consists of horizontal well the horizontal well seeking and plugging water, different segmentation water injection, lifting technology three aspects.In addition, research and apply the mechanical seeking and plugging water technology, and also application of sliding sleeve & switch seeking water technology and integrated seeking water technology.It has been achieved good results. In terms of water injection, research and develop segment of constant current injection technology, and also research the tools matching water injection string, and research on water injection Packers, constant-flow water distribution Packer, Rod supporting salvage and sliding sleeve switch device, constant water nozzles and other tools. Testing in 9 wells, mechanical plugging water in 6horizontal wells, Cumulative precipitation 5066 m 3, achieving high aquifer was effectively suppressed. Water seeking and plugging technology in horizontal well test in 3 wells, it has completed a single layer flowrate measuring in three paragraphs on the horizontal wells.Through researching and testing, forming a series of water plugging technology in horizontal well and horizontal well matching technology for water injection & efficient lift technology.