Paraffin removal device for oil wells

Abstract

The invention discloses a paraffin removal device for oil wells. The paraffin removal device comprises a barrel and an outer container which is sheathed in the barrel in a clearance manner; an inner container is sheathed in the outer container in a clearance manner; a front seal head baffle and a rear seal head baffle, which are fixedly connected with the end parts of the outer container and the inner container in a sealing manner, are fixed at the front end and the back end of the barrel; a through hole, through which a spray nozzle of a burner is extended into the inner container, is arranged on the front seal head baffle; an outer container gap is arranged at the rear end of the outer container; an inner container gap is arranged at the rear end of the inner container; the outer container gap and the inner container gap form a first gap; an inner guiding pipe is arranged between the outer container and the inner container; an outer guiding pipe, which is communicated with the inner guiding pipe at the first gap, is arranged between the barrel and the outer container; and a chimney, which is communicated with a gap between the barrel and the outer container, is arranged on the barrel. For the paraffin removal device, the inner guiding pipe is heated by using heat generated by high-temperature fire, simultaneously, the outer guiding pipe is directly heated by using heat generated by a flue gas, thereby the heat of the high-temperature fire is fully used, and simultaneously the heat of flue gas is effectively used. The paraffin removal device has high heat efficiency and compact structure.

Description

technical field [0001] The invention relates to a wax removal device for oil wells. Background technique [0002] In the development and production of oil fields, due to the high wax content, thick oil and high viscosity of oil wells, it is easy to cause high back pressure, pipeline blockage and wellbore wax deposition, which will increase the friction resistance of sucker rods, increase wear and power consumption, and reduce flow , affecting the normal production or output of the oil well, wax and scale removal must be carried out regularly or irregularly to ensure the normal production of the oil well. [0003] Chinese patent CN102022097A discloses a multifunctional wax removal equipment for oilfields. The equipment uses a boiler as a platform and adopts a thermal wax removal method. It includes a cylinder and an inner tank inside the cylinder. The front and rear inner head baffles are respectively fixed at the positions, and the front and rear inner head baffles cooperat...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wax removal device that can not only make full use of the heat of the burner flame, but also make full use of the heat of the flue gas generated by the flame, so as to solve the problem of low heating efficiency of the existing wax removal equipment

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