51results about How to "Realize setting" patented technology

The invention discloses a downhole blowout prevention technology and belongs to the technical field of downhole blowout prevention. The invention relates to a drill string equipped with a downhole blowout preventer, and the drill string comprises a drill string body, wherein a drill bit is arranged at the bottom of the drill string body. The drill string is characterized in that the downhole blowout preventer is mounted on the drill string body, at least one pressure monitoring and signal generating device is arranged at one end, adjacent to the drill bit, of the drill string body, a signal receiving and alarm generating device is arranged at the upper part of the top of the drill string body, and the signal receiving and alarm generating device is matched with the pressure monitoring andsignal generating device. By adopting the drill string equipped with the downhole blowout preventer, downhole well kick or blowout can be effectively monitored; and furthermore, the alarm signal transfer speed is fast, measures can be timely and effectively adopted for implementing well sealing, the blowout preventer is positioned above a neutralization point, the blowout preventer is in a tension state, the purposes of placing a pipe column downwards for setting and lifting the pipe column upwards for unsealing can be realized, and the well kick or the blowout can be effectively prevented.

The invention discloses a no-residue release mechanism. The no-residue release mechanism comprises an outer barrel body, an inner barrel body and a release component; one end of the outer barrel body makes contact with a lifting shoulder on the outer surface of a bridge plug, and the other end of the outer barrel body is connected with an outer barrel of a setting tool; the inner barrel body is arranged in the outer barrel body and is connected with the outer barrel body in a sliding manner, and one end of the inner barrel body is clamped to a center pipe of the bridge plug; one end of the release component is connected with a pulling rod of the setting tool, and the other end of the release component is connected with the other end of the inner barrel body; and the outer barrel of the setting tool is connected with the pulling rod in a sliding manner. According to the no-residue release mechanism, by ingeniously moving the position of a release ring, the no-residue release mechanism is invented, the release ring is made on the release mechanism, and after setting of the bridge plug is completed, the release ring is broken. According to the no-residue release mechanism, the broken release ring can be completely lifted out of a wellbore, it is achieved that well bottom setting is free of metal residues, and the grinding and milling time of the bridge plug is shortened to the maximum extent.

The invention discloses an elastic sieve pipe and a sand prevention pipe column. The elastic sieve pipe comprises a central slotted sieve pipe, a pressure transmitting piece, a supporting cylinder sleeve, a reset mechanism, and an outer-layer slotted sieve pipe; the outer side of the upper end of the central slotted sieve pipe is fixed to the lower end of an upper joint through a central sieve pipe coupling, a control pin and an upper cylinder body, and the lower end of the central slotted sieve pipe is fixedly connected with the upper end of a lower joint; the pressure transmitting piece is arranged outside the central slotted sieve pipe in a sleeving mode, and an upper expansion mechanism and a lower expansion mechanism are arranged at the two ends of the pressure transmitting piece correspondingly; the supporting cylinder sleeve and the reset mechanism are arranged between the lower expansion mechanism and the lower joint; the two ends of the outer-layer slotted sieve pipe are positioned through sieve pipe protecting sleeves, and the middle of the outer-layer slotted sieve pipe is matched with the upper expansion mechanism and the lower expansion mechanism; and when the pipe column is tripped, the control pin is sheared off, the gravity of the pipe column is transmitted to the upper expansion mechanism and the lower expansion mechanism, and thus the elastic sieve pipe is set. According to the elastic sieve pipe and the sand prevention pipe column, it can be ensured that set sand is basically avoided in a wellbore, the good sand prevention effect is achieved, the pump inspection cycle is effectively prolonged, meanwhile, during using, tripping and salvaging operation is easy and convenient, safety and reliability are achieved, and the cost is low.

The invention provides a method and device for searching for an interest point and a mobile terminal. The method for searching for the interest point comprises the steps that an event for starting searching for the interest point is received; a search area setting layer is drawn on a map layer displayed on a displayer of the mobile terminal, wherein the search area setting layer comprises an area capable of displaying the map layer; an interest point searching range defined by the area capable of displaying the map layer on the map layer is obtained; in the interest point searching range, the interest point which a user is interested in is searched for. By the adoption of the method and device for searching for the interest point and the mobile terminal, a user can complete setting of the interest point searching range through gestures, so that an existing interest point searching process is simplified, and the flexibility and the convenience of searching for the interest point are improved.