|
Abstract: In
the separate layer water injection system, the blanking plug is a key
part to the downhole flow control. Compared with the traditional
blanking plug, the constant flux blanking plug can reduce test load and
operation times well, so it has a good application prospect in the
separate layer water injection system. The bond-graph and state-equation
model of a typical constant flux blanking plug is established, the
influence of the flow force, damping force and leakage is fully
considered; Then the flow characteristic of the constant flux blanking
plug is simulated with the 20-SIM software, and it is verified by
experiment on the test bench. The results show that the simulation is
accurate and has the ability to reflect the details of the flow
characteristic.
Key words:Constant
flux blanking plug Flow characteristic Bond-graph
Computer simulation
CLC No: TE934+.1
黑龙江省科技攻关资助项目(GC05A508).
Received
20051008, received in revised form 20060315
|