◆ Product introduction ◆
?High temperature nitrogen integrated operation equipment can realize the switching output function of high pressure nitrogen at normal temperature and high temperature mode, which can be widely used in gas lift oil production, drainage and injection stimulation, sand flushing, oil displacement profile control andother conventional operations. At the same time, high temperature nitrogen cansolve the problems of paraffin removal, scale removal and plugging removal inhigh waxy oil Wells, and can also be used for viscosity reduction, drainage assistance, stimulation in heavy oil Wells ,scavenging and plugging removal ofoil and gas gathering and transportation pipelines.
?Accordingto the different heating methods, the device can be divided into three types: Waste heat recovery, electric heating and mixing-type heating.
?Equipped with professional calculation software: it can simulate and analyze the temperature change with the change of well depth according to the well condition and surrounding physical environment.
?Zero power consumption: The heating system uses the flue gas of the engine to heat nitrogen, which can save energy and reduce consumption.
?Compact layout, easy migration: nitrogen production and pressurization are integ rated in a skid body, which is located on crosscountry truck chassis, which has advantages of good cross-country ability, high degree of integration, low operating cost.
?Wide temperature adjustment range: nitrogen outlet temperature can be adjusted in the range of 50℃-300℃, which is simple and stable to operate.
?Flexible and wide application: it can realize the free switch between high temperature nitrogen and normal temperature nitrogen, and meets all kinds of high and low temperature nitrogen process requirements.
?Wide temperature adjustment range: the nitrogen outlet temperature can be adjusted within the range of 50 ℃ -300 ℃, which is simple and stable.
?High level of intelligence: central monitoring and local control system can be adopted to control the temperature of the final heated nitrogen gas, so as to meet the requirements of nitrogen gas temperature required by different oilwell operations.
?Nitrogen displacement 900nm 3/ h@95 %. gas injection pressure 16MPa.
?The oil production of an oil well in klmy oilfield can reach 89 tons / day before wax plugging, and then it becomes a dead well due to wax plugging. High temperature nitrogen unblocking process is adopted to become a production well. First inject high temperature nitrogen into the casing, then inject high temperature nitrogen into the tubing, and then inject chemicals. Repeat the operation for 2 times, and then choke the well. Finally, the plugging is removed successfully. The total gas injection is 14000nm 3， Gas injection temperature: 200-240 ℃.
◆ Technical parameter ◆
Heating method | Model | Nitrogen flow | Maximum output pressur | Nitrogen Purity | Output tempressure | Heat source |
waste heat recovery | HTNU-900/350C | 900Nm3/h | 35Mpa | 95% | 50℃-300℃ | Exhaust gas of Engine |
Electric heating/ | HTNU-900/350C | 900Nm3/h | 35Mpa | 95% | 50℃-300℃ | Electric heater |
Mixing type heating | HTNU-1200/350C | 1200Nm3/h | 35Mpa | 95% | 50℃-300℃ | Exhaust gas of Engine and Electric heater |
