Recently, good news came from the Patent Office of the State Intellectual Property Office. The "hydraulic disassembly tool for anchor cable joint shaft pin" submitted by the company was granted a utility model patent. The name of the invention is: underwater large anchor cable shaft pin hydraulic disassembly tool, patent No.: 2014200633654.

The achievement of this patent is the collective wisdom crystallization of the company's underwater engineering technology and construction personnel's scientific exploration and many years of engineering practice. From July to August 2011, Shanye organized the preparation of the bid for the "replacement project of upper anchor cable of mooring anchor cable of FPSO offshore oil 115 STP in CNOOC Xijiang Oilfield", and analyzed in detail the structural shape characteristics and structural physical parameters of the upper anchor cable joint, the structural shape characteristics and structural physical parameters of the installation position of the cable joint According to the structural characteristics and physical parameters of the shaft pin connection between the cable joint and the connecting plate, a disassembly tool for the shaft pin of the cable joint which can be used for underwater assembly is independently developed. The initial sample of the tool has been disassembled and tested on the water surface in advance, and has been successfully applied to the actual offshore construction after winning the bid. However, in the scientific spirit of excellence, we have been thinking about how to further optimize the initial sample design as a whole.

The opportunity pays off. At the beginning of this year, the company won two underwater construction projects: "online replacement of FPSO offshore oil 111 STP anchor cable in Panyu Oilfield" and "replacement of FPSO endeavour STP anchor cable in South China Sea in Wenchang Oilfield". The difference between these two operations and 2011 is that all 9 anchor cables will be replaced underwater one by one, which has no precedent in China and even the world. Facing the difficulties, the company organized personnel to analyze and study the relevant characteristics and technical parameters of the project in detail, and optimized and improved the original disassembly and assembly tools: on the one hand, the weight of the tools was reduced to facilitate transmission and underwater installation; On the other hand, the relevant feature parts in the tool are designed independently, and the assembly is flexibly changed according to the operation position when in use; Then, mechanical analysis and calculation shall be carried out for the optimized and rectified integral assembly to meet the load conditions. Practice has proved that the optimized hydraulic disassembly tool for anchor cable joint shaft pin has been more successfully used in the implementation of engineering projects.

The successful application of the patent adds luster to the strengthening of the company's soft and hard strength. It is the fruit of the company's long-term advocacy to establish a learning and innovative enterprise. It also greatly encourages the innovation enthusiasm and construction self-confidence of the company's technicians, and will encourage the employees to strive for more and greater achievements and contributions in their future work.