3results about How to "Realize setting" patented technology

This invention provides a mechanical cement retainer, a cement retainer setting tool, and its control device, belonging to the technical field of oil and gas well plugging tools. The control device includes a control center pipe, a positioning mechanism, a straightening mechanism, an upper connecting sleeve, and a lower connecting sleeve. The upper end of the control center pipe is connected to the tubing string, and the lower end is connected to the upper connector of the setting tool. The positioning mechanism includes a positioning key, and the control center pipe has a positioning groove. The upper connecting sleeve is equipped with a track pin, and the control center pipe has a long track groove, a short track groove, and a reversing groove. The lower connecting sleeve connects to the upper bushing of the setting tool. A mating structure is provided between the upper and lower connecting sleeves. The upper connecting sleeve has a stop-rotation position that keeps the track pin at the first upper dead point during the well running process, and simultaneously prevents rotation of the lower connecting sleeve in the circumferential direction through the mating structure. This prevents the straightening device of the setting tool from rotating relative to the setting center pipe, avoiding mid-running setting, eliminating the need for manual reverse rotation of the tubing string, saving time and effort, and providing convenient control.

The application discloses a mechanical force-amplification compression type electrically-controlled packer and a use method thereof, and relates to the field of packers, which comprises a center pipe, a locking block ring, a rubber tube and an electrically-controlled setting and releasing mechanism which are sequentially arranged on the center pipe from top to bottom; the electrically-controlled setting and releasing mechanism comprises a linear driver and a gear and rack auxiliary force-amplification component, the output end of the linear driver is connected with the input end of the gear and rack auxiliary force-amplification component, and the output end of the gear and rack auxiliary force-amplification component is in contact with the rubber tube. The application adopts a mechanical transmission mode to realize the setting and releasing of the electrically-controlled packer, and the setting and releasing only needs to control the linear driver to push out and retract, so that the control mode is simple and reliable.

The invention relates to the field of oil and gas exploitation, in particular to a one-way fluid automatic cut-off device and method. Comprising a valve body, a sealing piece, an adjusting piece, an elastic piece and a valve body gland, and the sealing piece, the adjusting piece, the elastic piece and the valve body gland are arranged in the valve body. The valve body gland is connected with the valve body, an inner cavity is formed in the middle of the valve body gland, one end of the adjusting piece extends into the inner cavity, the other end of the adjusting piece is connected with the sealing piece, an elastic piece is arranged between the adjusting piece and the valve body gland, and the flow channel is set or communicated through the sealing piece. The one-way fluid automatic cut-off device is installed on a pipeline, when the pipeline leaks, accurate segmented cut-off can be achieved on the pipeline, and therefore the leakage amount is effectively controlled, it can be ensured that the pipeline has the liquid-free and pressure-free sealing function and the excessive and overpressure sealing function at the same time when conveying liquid under the condition that an external new power source is not needed, and the sealing effect is good. And the safety and the reliability of pipeline operation are greatly improved.