Underground explosive sleeve at seismic prospecting shoal area

地震勘探浅水区井下药套管

Abstract

本实用新型公开了地震勘探技术领域内的一种地震勘探浅水区井下药套管,旨在解决现有技术中水下地震勘探提钻后井口不易查找,炸药柱不能顺利送至设计井深部位的问题。它包括套管,所述套管下端外管壁连接有若干支撑杆,所述支撑杆下端延伸超过所述套管下管口;所述套管上端外管壁连接有若干导向杆,所述导向杆上端延伸超过所述套管上管口。本实用新型结构简单,成本低廉且易于加工制造,适用水深小于4米水域的石油勘探及地质矿场钻探等工作领域。
The utility model discloses an underground explosive sleeve at a seismic prospecting shoal area, belongs to the technical field of seismic prospecting, and aims to solve the problems in the prior art that the wellhead is difficult to find after drill lifting in underwater seismic prospecting, and an explosive column cannot be sent to a designed well depth part smoothly. The underground explosive sleeve includes a sleeve, wherein a plurality of supporting rods are connected with the outer sleeve wall at the lower end of the sleeve; the lower ends of the supporting rods extend out of the lower orifice of the sleeve; a plurality of guide rods are connected with the outer sleeve wall at the upper end of the sleeve; and the upper ends of the guide rods extend out of the upper orifice of the sleeve. The underground explosive sleeve has a simple structure, is low in cost and easy to process and manufacture, and is applicable to the working fields of oil exploration and geological ore yard drilling at water areas with the water depth lower than 4 m.

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