Group 1 - The core point of the article is that Shandong Chenglin Petroleum Engineering Technology Co., Ltd. has obtained a patent for a device and method related to sandblasting perforation and anti-sand integration [1] - The patent was granted with the announcement number CN121111184B, and the application date was November 2025 [1] - Shandong Chenglin Petroleum Engineering Technology Co., Ltd. was established in 2013 and is located in Dongying City, primarily engaged in professional technical services [1] Group 2 - The company has a registered capital of 30 million RMB [1] - According to data analysis, the company has made investments in one other enterprise, participated in 11 bidding projects, and holds 64 patent records [1] - Additionally, the company possesses two administrative licenses [1]
山东成林石油取得喷砂射孔与防砂一体联作装置及方法专利
Sou Hu Cai Jing·2026-02-25 04:40