An experimental device for pressure wave detection of leakage layer and its application method

Abstract

The invention relates to a pressure wave leakage layer detection experiment device and a use method of the pressure wave leakage layer detection experiment device. The pressure wave leakage layer detection experiment device consists of a main body part, a throttle manifold, a control system and a signal collecting system, wherein the main body part can be realized by adopting various means in the prior art, and preferably, the main body part comprises a water tank, a cement pier, a drilling pump, a water supply pipe, a well shaft, a water outlet pipe, a water return pipe, a cross joint and a throttle manifold. The pressure wave leakage layer detection experiment device and the use method of the pressure wave leakage layer detection experiment device can solve the problems of the conventional drilling well shaft pressure control and detection device and method that the structure is complicated, and the connection relationship of all elements and components is complicated, so the structure is complicated, the cost is high, the measuring precision is limited, the operation is complicated, and the measuring responsivity and the efficiency cannot meet the actual operation requirements. Therefore the actual drilling operation requirements are met.

Description

technical field [0001] The invention belongs to the technical field of wellbore pressure control for drilling, and designs an experimental device for detecting a leaky layer, in particular to an experimental device for detecting a leaky layer by a pressure wave and a use method thereof. Background technique [0002] At present, lost circulation is one of the most common technical problems in drilling engineering. Lost circulation will not only delay the drilling operation time, prolong the drilling cycle, lose drilling fluid, cause huge material loss, damage reservoir productivity, interfere with geological logging and normal maintenance of drilling fluid performance, but may also cause stuck pipe, blowout, well A series of complex situations such as landslides may even lead to the scrapping of the wellbore, resulting in significant economic losses. Drilling workers at home and abroad have conducted a lot of research on leakage prevention and plugging for the problem of los...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a pressure wave detection leaky layer experimental device and its use method, to solve the complex structure of the existing drilling wellbore pressure control and detection device and method, and the connection relationship of each component is cumbersome, so there are The structure is complex, the cost is high, the measurement accuracy is limited, and the operation is cumbersome, and the measurement responsivity and efficiency are difficult to meet the actual operation requirements, so as to meet the needs of actual drilling operations

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