Method for manufacturing chemical paraffin cleaner

Abstract

The invention provides a manufacturing method of a chemical paraffin cleaner, wherein, a main body is composed of a cylindrical pipe; a limiter is arranged at the top of the main body and connected with an oil pipe; the diameter of the main body is in conformity with that of the oil pipe; a hole is arranged on the wall of a main body pipe; the bottom of the main body pipe is a sealing plug, and the interior of the main body pipe is provided with a paraffin remover. The paraffin cleaner has the advantages that: the unit-released heat of the chemical paraffin cleaner is large, and the produced heat only acts in the oil pipe; the paraffin cleaning efficiency is high, and the application cost is low. The paraffin remover is located correctly by using the limiter, without affecting the advancement of oil exploitation, thereby being beneficial to storage, transmission, application and location, and the reaction products do not corrode the oil pipe.

Description

Technical field: [0001] The invention relates to a wax removal and prevention device for oil wells in oil recovery operations. Background technique: [0002] Wax deposition in tubing has always been a well-known problem in the oil and gas industry. If wax buildup occurs in the formation or near the wellhead, it can be difficult or impossible to remove. [0003] At present, there are mainly three methods or comprehensive applications for oil pipe wax removal. 1) The mechanical wax removal method uses ground equipment to remove wax, which is suitable for oil wells with a low degree of wax formation; 2) The chemical wax removal method uses a variety of chemical wax removers, such as dispersants, crystal modifiers, etc. The purpose is to Dissolves the paraffin and pumps it out of the system. The main problem that this method exists is that the chemical paraffin remover is expensive; 3) hot melt method is to rely on external heat to melt paraffin and take it out of the oil wel...

AI Technical Summary

Problems solved by technology

The main problem that this method exists is that the chemical paraffin remover is expensive; 3) hot melt method is to rely on external heat to melt paraffin and take it out of the oil well, such as the hot oil method to wash well and remove wax is exactly a kind of hot melt method, this method It is to heat the crude oil stored in the oil tank to a relatively high temperature and then inject it into the annular space of the oil jacket to achieve the purpose of wax removal

When the fluid flows into the annular space, a certain amount of heat loss will be generated, and it will also cause the paraffin in the hot oil to deposit at the bottom of the well, which will bring more trouble to production

[0004] The traditional chemical heat removal wax system has also been used in the oilfield industry. Among them, the chemical heat removal wax system developed by Shell was used in the Navy No. 3 oil reserve in 1984. The two solutions used are nitrous acid Sodium and ammonium nitrate or ammonium chloride, the wax remover is liquid, not easy to transport and inconvenient to use

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