【Ten Years of Rapid Development in Chemical Engineering Equipment】The differential pressure power generation project at the first station of the West-East Gas Pipeline was completed and put into operation between 1282 and 2023
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On September 27, 2023, the differential pressure power generation project at Station 1 of the West-East Gas Pipeline was successfully connected to the grid, marking the official completion and commissioning of the first differential pressure power generation project in this oil field. Station 1 of the West-East Gas Pipeline thus became the first zero-carbon oil and gas facility in the Tarim Oil Field. This project is a research initiative of China National Petroleum Corporation. It involves the installation of a new differential pressure generator set; by adding expansion equipment in place of pressure regulating valves, the kinetic energy resulting from differential pressures during the pressure regulation process in the pipeline network can be recovered and used to generate electricity. This approach helps to reduce energy waste associated with pressure regulation of natural gas in such pipelines, thereby establishing a new model for the utilization of excess kinetic energy in natural gas networks. Once operational, this project will generate approximately 5.2 million kWh of electricity per year. The electricity produced is delivered to the 10 kV high-voltage distribution room at the first oil transfer station of the Lunnan Oil and Gas Storage and Transportation Center. A power supply system that combines differential pressure generation with grid electricity is used, allowing the electricity generated by the differential pressure generators to be used entirely for internal needs. It is estimated that this approach will result in a savings of 4.85 million kWh of electricity per year, as well as a reduction of around 3,335 tons of carbon dioxide emissions per year. While helping to optimize the overall energy consumption structure, this project will also generate significant economic and social benefits. Since the project commenced construction on April 14, 2023, the Lunan Oil and Gas Storage and Transportation Center under the Oil and Gas Marketing Department has aimed to create a high-quality project. With the guidance of the department’s leadership and the strong support of various business units, everyone at the center worked together tirelessly to overcome difficulties such as the challenges associated with leveling the turbine generator sets during on-site installation, as well as issues related to unstable process control and electrical communication. Adhering to a work style characterized by rigor, precision, practicality, and speed, the center made every effort to advance the project construction, ensuring its early completion, operation, and delivery of benefits.
On November 12, 2023, the first natural gas differential pressure generator set manufactured by Jichai Power Co., Ltd., which is used at the First Station of the West-East Gas Transmission Project in the Tarim Oil Field, was put into operation after completing a 72-hour trial run. At the first station of the West-to-East Gas Pipeline, there is a significant pressure difference in natural gas during its extraction, transportation, and utilization. The application of Jichai Power’s natural gas differential pressure power generation technology and equipment will provide strong support for the energy needs of facilities located around oil fields.
On September 13, 2022, the natural gas excess pressure power generation project at Rongshan Gas Transmission Station was connected to the grid. The natural gas surplus pressure power generation project at Rongshan Gas Transmission Station is the first clean energy project for external supply by PetroChina Southwest Oil and Gas Field Company. After stages such as preliminary project construction, procedures for connecting to the grid, trial operation of the power generation equipment, and continuous operation at high capacity, the electricity generated by this project has been officially integrated into the **power grid system, and billing is carried out based on the amount of electricity produced. This marks the successful completion of the pilot phase for this company’s natural gas surplus pressure power generation project. The Rongshan residual pressure power generation project is equipped with 1 220-kilowatt generator set and 2 250-kilowatt generator sets, both of which are double-rotor expansion turbine types; the total installed capacity is 720 kilowatts. Under full load, it can generate 5.76 million kWh of electricity per year. The electrical energy generated by the residual pressure is fed into the distribution networks of Tianhua Company and Tianhua Fubang Company for their own use. The cold energy produced can supply 1.23 million tons of cooling water per year, which is used by these companies for circulating cooling purposes. This approach allows for the savings of 1,660 tons of standard coal per year, as well as a reduction of 4,600 tons of carbon dioxide emissions, thereby contributing to the production of more ‘green electricity’ and generating additional benefits.
On December 29, 2022, the differential pressure power generation project at the Rongshan gas transmission station of CNPC Southwest Oil and Gas Field Company was officially put into operation.
Thank you, President Yu, for sharing the information; thumbs up!