Petroleum sampling device suitable for petroleum geological exploration

Abstract

The invention provides a petroleum sampling device suitable for petroleum geological exploration, and belongs to the field of petroleum exploration sampling equipment, a transition joint is connectedwith the end part of a drill rod, a top plate of an expansion unit is connected with the transition joint through a plurality of first connecting rods, one end of each angle adjusting module is hingedwith the top plate, and the other end is connected with an angle driving module; the angle driving module is arranged between the top plate and the bottom plate and drives the angle adjusting modulesto change angles, and each angle adjusting module is externally connected with one expansion plate; each sampling module of a sampling unit comprises a protective plate, a sampling structure and an air cylinder, a plurality of through holes matched with the air cylinders and the protective plates are formed in the outer sleeve in the axial direction, a supporting column is arranged in the middleof the outer sleeve, each air cylinder is fixed to the supporting column, and the end of each air cylinder penetrates through one through hole and is connected with one protective plate. The samplingstructure is arranged on the inner wall of the protective plate and penetrates through the end part of the air cylinder. The device is convenient to drill, samples at different height points can be collected at a time, and the collection efficiency is high.

Description

technical field [0001] The invention belongs to the field of petroleum exploration sampling equipment, and in particular relates to a petroleum sampling device suitable for petroleum geological exploration. Background technique [0002] Petroleum, one of the main objects of geological exploration, is a viscous, dark brown liquid known as the "blood of industry". There are oil reserves in parts of the upper crust. The main component is a mixture of various alkanes, naphthenes and aromatic hydrocarbons. The oil-forming mechanism of petroleum has two theories of biosedimentary oil and petrochemical oil. The former is more widely accepted. It is believed that oil is formed by organisms in ancient oceans or lakes after a long evolution. It belongs to biosedimentary oil and is non-renewable. It is believed that petroleum is generated from the carbon in the earth's crust itself, has nothing to do with biology, and is renewable. Petroleum is mainly used as fuel oil and gasoline, ...

AI Technical Summary

Problems solved by technology

In this selection method, when the drill pipe is taken out, the drill pipe is squeezed by the surrounding geological formations, making it difficult to take out the drill pipe

At the same time, the existing oil sampling device cannot realize oil extraction at multiple heights and different points at one time during sampling. If oil at different heights needs to be exploited, multiple samplings are required, resulting in low sampling efficiency

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