CNOOC's 4,200-square-meter "Huanke No. 1" Multiphase Flow Test System Put into Operation

en.Wedoany.com Reported - Recently, CNOOC's self-developed "Huanke No. 1" high-pressure, wide-temperature-range multiphase flow test system for high-viscosity, easily-solidifying fluids was officially put into operation. Covering an area of 4,200 square meters, the system can simulate deepwater oil and gas transportation conditions and conduct industrial-scale pilot tests using actual production media, covering test items such as multiphase flow, wax deposition, and natural gas hydrate formation and dissociation, providing verification conditions for offshore oil and gas field development and subsea pipeline flow safety technologies.

"Huanke No. 1" adopts a high-pressure, wide-temperature-range test design, enabling research on multiphase flow of high-viscosity, easily-solidifying oil and gas using actual production media such as crude oil and natural gas under simulated deepwater oil and gas flow conditions. The test scope covers flow characteristics under different operating conditions, pipeline wax deposition, hydrate formation and dissociation, and shutdown and restart processes, and can conduct industrial-scale verification for long-distance subsea pipeline transportation and high-viscosity crude oil flow.

Since May this year, CNOOC's technical team has used the system to complete wax deposition and hydrate tests using crude oil and natural gas as media, developing pilot research capabilities in multiphase flow, shutdown and restart, pigging operations, and chemical performance evaluation. Among them, the wax deposition tests target high-viscosity, easily-solidifying crude oil pipeline transportation conditions, the hydrate tests cover formation and dissociation processes, and the pigging and chemical evaluation tests address specific technical needs in subsea pipeline operation and maintenance.

After being put into operation, the system can be used for engineering technical research on long-distance tiebacks of deepwater oil and gas fields, high-viscosity, easily-solidifying crude oil transportation, and hydrate prevention and control. The relevant test data will be used for oil and gas production scheme optimization, pipeline operating parameter verification, flow safety risk analysis, and industrial-scale pilot evaluation of wax prevention, hydrate prevention, and pigging technologies.