Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a new technology called "an integrated tubing for synchronous injection and production," which aims to enhance oil extraction efficiency and water injection capabilities in oil wells [1] Group 2 - The patent application was published under the number CN121296051A, with an application date of July 2024 [1] - The integrated tubing consists of three segments: an oil production tubing, an upper water injection tubing, and a lower water injection tubing, which are connected through an insertion method [1] - This technology allows simultaneous oil extraction and dual water injection within a single well, overcoming the limitations of traditional methods that only allow for single-layer water injection [1] - The design aims to improve the effective area of water injection and the lifespan of the tubing by eliminating deformation caused by tubing movement [1] Group 3 - CNPC was established in 1999 and is primarily engaged in oil and natural gas extraction, with a registered capital of 18,302,097,000 RMB [2] - The company has invested in 1,296 enterprises and participated in 443 bidding projects, holding 38 trademark records and 5,000 patent records [2] - Additionally, CNPC possesses 168 administrative licenses [2]