Mechanical selector with shock absorption structure for oil field perforation and coring

Abstract

The invention relates to a mechanical selector with a shock absorption structure for oil field perforation and coring. The mechanical selector comprises a nylon resin layer and a coring orifice plate,wherein one side of the nylon resin layer is in hollow-out connection with liquid drainage holes, an external straight rod is arranged on the inner side of the nylon resin layer, and one side of theexternal straight rod is in welding connection with a connecting block; the inner side of the coring orifice plate which is located on one side of the connecting block is in hollow-out connection witha coring cylinder, a jet nozzle is arranged on the inner side of the coring cylinder, and the jet nozzle is in hollow-out connection with air holes; supporting blocks are arranged at the two ends ofthe coring orifice plate, and plated steel is installed on the outer sides of the supporting blocks. The mechanical selector has the beneficial effects that the textile cleaning device with a multidirectional positioning stirring function is provided with a gear lever, through the gear lever and a gear positioning groove formed in one side of the gear lever, operation is easy and flexible due to the triangular structure and the switch shifting way, neither shifting hysteresis nor trip stop can occur, and the operation stability of the device is improved.

Description

technical field [0001] The invention relates to the technical field of hair selectors, in particular to a mechanical hair selector for oil field perforation and coring with a shock absorbing structure. Background technique [0002] Coring refers to the process of sampling the rocks of the drilled strata in order to understand the geological conditions of the stratum. The coring is completed through the coring barrel. The traditional coring barrel is connected to the bottom end of the drill pipe close to the drill bit, and the coring cutting head cuts into the stratum. Finally, the coring barrel can be used to take the core continuously, and then take it out from the drill pipe. The perforating gun is a combination of equipment and accessories used for perforating oil and gas wells. At present, the energy-shaping perforating gun is widely used. The energy-gathering phenomenon of the fried flower produces the energy-gathering jet, which shoots away the stratum. [0003] In th...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a mechanical hair selector for oil field perforation and coring with shock absorbing structure, to solve the existing hair selector proposed in the above background technology, the operation is not easy and the service life is not long , Disassembly is more troublesome and difficult to maintain, the structure is not firm, does not have the effect of shock absorption, and does not have electrified operation functions, which seriously affects the efficiency of operations, increases the labor cost of enterprise users, and cannot deal with mechanical failures in time create a dangerous situation that may cause damage to the user's property

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