The invention relates to an anti-freezing and anti-theft watering gathering and transportation process flow valve
bank for an
oil well. The anti-freezing and anti-theft watering gathering and transportation process flow valve
bank for the
oil well comprises a watering
pipe, an incoming water total
cut-off valve, a thermal washing
cut-off valve, a watering one-way valve, a central watering
pipe 1, a central casing
pipe, a vertical watering pipe, an oil-gas inlet pipe, a central watering pipe 2, a watering regulating valve, an oil return one-way valve, a vertical oil return pipe, an oil return total
cut-off valve and an oil outlet pipe. According to the device, the watering pipe is arranged in a gathering and transportation pipeline,
waste heat of watering is utilized to perform cyclic heat preservation on the whole valve
bank, if maintenance and well shutdown are needed due to faults of an operation, a
wellhead device, a Christmas tree and an oil pumping unit, the overall cyclic heat preservation of the valve bank can be still ensured, and freezing blockage can be avoided.