The invention belongs to the technical field of
petroleum and
natural gas exploitation, and discloses a sand control screen
pipe flow
control system, method and device and a
petroleum downhole drilling and production tool. Fluid enters a fixed-precision sand
blocking layer through a rectangular through hole in a protection module, first-stage sand
control treatment is conducted, and the fluid enters an overflowing area control module and then enters a pipeline through a screen; and when the flow of a screen
pipe needs to be adjusted, a heating cavity supplies heat through power supply of a
power transmission cable, memory
metal is heated, a sliding block is stretched and moved through the two-way
memory effect of the memory
metal, the position of the sliding block in an overflowing area control structure is changed, the overflowing area of the fluid is changed, and screen
pipe flow control is achieved. According to the sand control screen pipe flow
control system, method and device andthe
petroleum downhole drilling and production tool, the flow of the fluid flowing through the screen pipe is adjusted in real time in the petroleum field production process; the method for controlling the
oil well yield at the position of the sand control screen pipe is provided through the characteristics of the memory
metal; and the flow of the fluid of the sand control screen pipe is adjustedin real time in the petroleum field production process. Compared with a sand control screen pipe in the prior art, the flow of the sand control screen pipe is controlled.