Multistage three-component wave detector device

Abstract

The invention relates to a multistage three-component wave detector device which is provided with a plurality of wave detector units and a propelling rod; each wave detector unit is provided with a cylindrical main body; a three-component wave detector is installed in the cylindrical main body; the wave detector units are connected by a steel rope; the outer side of the cylindrical main body of the wave detector unit is provided with an elastic support arm; wall attached coupling with a well wall is realized by the elasticity of the elastic support arm; the propelling rod is formed by combining and connecting a plurality of sections of connecting rods; each connecting rod is provided with a fork groove; and the fork groove is matched with a support arm pin shaft which is installed on the elastic support arm for downwards propelling the wave detector units in the fixed direction. The invention has compact structure, convenient and reliable connection and simple and convenient operation and use, has the characteristics of small diameter size, strong small hole diameter adaptability and convenient connection and disassembly, can carry out construction and receiving in the fixed direction, greatly reduces the survey cost, and is suitable for well measuring wave detection of petroleum and earthquake exploration, mine geology, construction engineering, and the like.

Description

technical field [0001] The invention relates to a geophone device for oil exploration, in particular to a multi-stage three-component geophone device suitable for small well diameter and directional detection. Background technique [0002] At present, when we are conducting geological surveys in the petroleum and coal industries, the traditional multi-level three-component detectors are difficult to orientate, or they are large in size, inconvenient to transport, and high in cost; especially for small-caliber surveys During the well operation and the use of multi-stage directional geophones, there are problems such as difficult control of the directionality between each geophone, poor coupling performance between the geophone and the well wall, and the large size of the geophone; especially when When there is mud under the well, it is difficult for ordinary three-component geophones to be pushed to the predetermined detection position. There are large-scale well logging equ...

AI Technical Summary

Problems solved by technology

With the in-depth research and practice of micro-logging vertical seismic section, this seismic observation method, this type of device still has the following limitations: (1) The main body of the single-stage logging detector determines that it can only be used during use. The main body is collected point by point according to a certain rule, and repeatedly pushes against, repeatedly excites the source, and repeatedly receives signals. The seismic signals received by multiple single-point excitations and single-point receptions cannot well reflect the objective geological conditions of the region; (2) Due to the soft lifting rope structure, the direction of the shear wave component geophone cannot be controlled in the well, and the shear wave component cannot always be ensured. Maintain a specific angle relationship with the source direction

Therefore, the final processed seismic data will not fully reflect the actual geological structure, and it will not be possible to accurately analyze the propagation and attenuation laws of the corresponding wave field.

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