Douson self-operated emergency shut-off safety valve, served for the first time in the supporting project of Sinopec Sichuan-East Gas Transmission Pipeline: Jintan Salt Cavern Natural Gas Underground Gas Storage Project. Jintan gas storage is located in Jintan District, Changzhou, Jiangsu. It is the first large-scale salt cavern gas storage project of my country's city gas, and also the first commercial salt cavern natural gas storage in the country.

Douson die forging joint research and development center Changshu base, following In November 2019, successfully developed 7" 5M 4130 75K oil pipe head multi-directional die forgingAfter that, in October 2020, another good news: 5-1/8" 15000PSI multi-directional die forging wellhead fracturing valve body was successfully trial-manufactured and mass-produced.

Douson has its own API product performance testing laboratory, which is mainly used for API 6A, API 16A, API 17D product performance testing. Since it was officially put into use in 2015, the laboratory has completed important product testing tasks many times. Among them, the test equipment can meet the maximum torque of 1000Nm, the temperature range of -60℃~130℃, and the maximum gas test pressure of 22500PSI.

The "twin" block of Lvda 21-2 oilfield in Bohai Oilfield has successfully settled offshore. As my country's first heavy oil thermal recovery platform, it has condensed the technology and experience accumulated by scientific research, production and test personnel for ten years, and will increase reserves and production make greater contributions.

Recently, the 78mm 140MPa high-pressure cyclone electric desander designed and developed by Douson has started service in Well Gaotan 1 in northern Xinjiang. So far, the complete set of equipment has been in stable operation for a week.

In recent years, Douson and China National Offshore Oil Corporation Zhanjiang Branch have established a good cooperation mechanism on wellhead and Christmas tree projects. Since 2018, Douson has provided CNOOC with nearly 100 sets of single-tube single-well wellhead Christmas tree and single-tube double-well wellhead Christmas tree equipment. The main specifications include: 3-1/8'' ~4-1/ 16'' (diameter); 3000psi~10000psi (pressure).

In the past week, Douson Co., Ltd. appeared at the cippe Precision Marketing Promotion Conference - a special session on high-pressure fluid series products. This online promotion event is the first time that Douson has demonstrated Douson's 6A well control equipment to users at the company's site since its establishment. Douson showed the company's most technical level and market value equipment.

From 09:30 to 11:30 on the morning of July 10th, the cippe precision marketing promotion conference held by Zhenwei Exhibition-the special session of well control equipment and high-pressure manifold products will be officially launched. Douson, as an advanced oil drilling equipment manufacturer in China, will bring a new "fist" product to this online product promotion event!

On the afternoon of May 29, 2020, Douson held the opening report meeting of the postdoctoral scientific research workstation. Deputy Director Yang Yi of Xiangcheng District Human Management Center, Liu Yi, Taiping Street Zhu Zihao and other relevant personnel, Professor Guo Xuhong from the School of Mechanical and Electrical Engineering of Soochow University, Suzhou Vocational University Professor Jiang Zuo, former vice president, Professor Chen Qingzhang from Changshu Institute of Technology, Zou Liming, general manager of Suzhou Douson Drilling & Production Equipment Co., Ltd. and other doctoral supervisors and experts, deputy general manager Liu Jiantong of the company, Zhan Liangbin, deputy chief engineer Zhao Bin and other relevant personnel participated in the opening report meeting.

Douson responds to the national "Belt and Road" initiative, actively plans, makes sound decisions, and implements the "going out" strategy. In 2019, the Vietnamese factory officially settled in the Singapore Industrial Park, Bac Ninh Province, Vietnam: Planning began in early 2019 and was approved by the Ministry of Commerce in September. , officially registered in Vietnam in November, Douson's overseas production capacity investment project successfully landed.