Rope coring positioning suspension mechanism with in-place notifying function

Abstract

The invention discloses a rope coring positioning suspension mechanism with an in-place notifying function. The rope coring positioning suspension mechanism comprises an inner pipe assembly and an outer pipe drilling tool. The inner pipe assembly is arranged in the outer pipe drilling tool and can work when a rope drilling tool is released, an annular washing liquid channel between the inner pipe assembly and the outer pipe drilling tool is cut off after the rope drilling tool is released in place, water hammer pressures can be generated, a movable valve block can be driven to open a washing liquid channel at a valve block plate, and operators can know that the rope drilling tool is released in place by the aid of pressure fluctuation of an earth surface pressure gauge; a locking device is unlocked when the rope drilling tool is about to be fished, a fisher can drive a rope fishing spear to move upwardly, the movable valve block moves to the uppermost end of the rope coring positioning suspension mechanism, the washing liquid channel at the valve block can be opened, the fisher can continue being pulled, and accordingly the rope drilling tool can be completely fished. The rope coring positioning suspension mechanism has the advantages that an in-place notifying device can be automatically reset, accordingly, the rope coring positioning suspension mechanism is low in pressure loss, a locking function can be realized after the rope drilling tool is positioned, the rope drilling tool can be shortened, the rope coring positioning suspension mechanism is favorable for improving the rock core acquisition quality, field application and operation can be facilitated, and problems of suction, absorption and the like when drilling tools are fished can be solved.

Description

technical field [0001] The invention relates to a wireline coring drilling tool, in particular to a wireline coring positioning suspension mechanism with in-position reporting. Background technique [0002] In recent years, with the rapid development of my country's economy, the demand for upstream resources has increased, which has led to the rapid development of geological exploration and the development of exploration technology. Due to the depletion of shallow resources, geological exploration has gradually extended from shallow to deep . [0003] Diamond wireline core drilling is a drilling process that does not require frequent drill lifting. It will have more technical advantages in deep drilling projects. When using diamond wireline core drilling tools to drill holes with a depth of more than 500 meters, put in When the inner pipe is used, it is impossible to accurately judge whether the inner pipe is put in place. The site relies entirely on experience. In order to ...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problems of complex structure, cumbersome operation, long working hours, low efficiency, large pressure loss, high labor intensity, suction, adsorption, etc. Rope Coring Positioning Suspension Mechanism

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