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Henan Oilfield double-pipe injection technology was patented

 Last Update: 2022-09-27
 Source: Internet
 Author: User

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Sinochem New Network News Recently, the "a kind of dispensing pipe string" declared by Sinopec Henan Oilfield Branch has obtained the patent authorization of the State Intellectual Property Office

This patent is a concentric double-pipe sub-injection technology independently developed by Henan Oilfield, which realizes precise water injection in ultra-low permeability reservoirs and solves the problem of dual-pipe sub-injection technology under pressure

The ultra-low permeability reservoir in Henan Oilfield has problems such as poor physical properties and small injection volume per layer

To this end, Henan Oilfield has developed a concentric double-pipe injection technology for under-pressure operation.

Up to now, the technology has been popularized and applied in 137 wells in Changqing Oilfield, Fushan Oilfield, Henan Oilfield, etc.

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