| 摘要 |
<p>An oil-gas well structure and a segmented current controlling method of a current controlling filter pipe column (5) used on it are provided. The oil-gas well comprises a well wall (1) and a sand control pipe (2) tripped in the well wall (1), at least a clearance exists partly between the sand control pipe (2) and the well wall (1). A current controlling filter pipe column (5) is tripped in the sand control pipe (2), and a current controlling filter (6) is set on the current controlling filter pipe column (5). An annulus is formed between the current controlling filter (6) and sand control pipe (2), anti-breakthrough flow packer particles (7) are filled in the clearance and annulus. The segmented current controlling method of a current controlling filter pipe column (5) comprises the steps: 1) establishing a channel (2-1); 2) tripping in the current controlling filter pipe column (5); 3) filling in the anti-breakthrough flow packer particles (7); 4) enclosing; 5) disconnecting the tripped-in column which is connected with the current controlling filter pipe column (5). By using the packing effect of the anti-breakthrough flow packer particles (7), the segmented current controlling of the current controlling filter pipe column (5) is achieved.</p> |
