Thin oil mixing device and oil extraction pipe column

Abstract

The invention provides a thin oil mixing device and an oil extraction pipe column. The thin oil mixing device comprises a mixing pipe and a uniflow device; the top end of the mixing pipe is used for communicating with an oil pipe, and a thin oil mixing hole is formed in the side wall of the mixing pipe; and the thin oil mixing hole is used for communicating with a thin oil mixing pipe through theuniflow device, and the uniflow device only allows thin oil to flow towards the thin oil mixing hole from the thin oil mixing pipe. The top end of the mixing pipe communicates with the oil pipe, the thin oil mixing hole is formed in the side wall of the mixing pipe and communicates with the thin oil mixing pipe through the uniflow device, the uniflow device only allows the thin oil to flow towardsthe thin oil mixing hole from the thin oil mixing pipe, thus when the pressure of crude oil in the oil pipe is increased, the uniflow device can prevent the crude oil from entering the thin oil mixing pipe, when the pressure of the oil pipe is decreased, the thin oil continues entering the oil pipe, the thin oil mixing effect is good, and the crude oil extraction difficulty is lowered.

Description

technical field [0001] The invention relates to the technical field of crude oil extraction equipment manufacturing, in particular to a dilution device and an oil production string. Background technique [0002] Crude oil is a complex mixture mainly composed of oil, colloid, asphalt, etc.; due to the presence of semi-solid colloids and solid asphalt in crude oil, the viscosity of crude oil is high, the fluidity of crude oil is poor, and mining is difficult; therefore, how to reduce The viscosity of small crude oil has become the main research direction. [0003] In the prior art, it is often used to install a thinning pipe on the oil production string to input the thin oil with low viscosity on the ground to the upper part of the oil pump, so that the crude oil in the upper part of the oil pump can be mixed with the thin oil, thereby reducing the oil pressure in the upper part of the oil pump. The viscosity of crude oil reduces the difficulty of transporting crude oil at th...

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Problems solved by technology

[0005] In view of this, the present invention provides a thinning device and an oil production string to solve the problem that crude oil will enter the thinning pipe through the thinning hole, thereby preventing thin oil from entering the oil pipe. big technical problem

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