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An environment-friendly and energy-saving wax removal petroleum machinery

A petroleum machinery, energy-saving technology, applied in cleaning equipment, wellbore/well components, earth-moving drilling, etc., can solve problems affecting normal wellhead production, defects, wellbore wax deposition, etc.

Active Publication Date: 2021-07-06
梁红云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For crude oil with high wax content, severe wax deposition will occur in the wellbore during the production process, which requires timely wax removal and maintenance, otherwise it will cause wax sticking and wax plugging, affecting the production of oil wells, and even affecting the normal production of the wellhead
For the above problems, the traditional method is to carry out conventional hot washing on the wax deposition well. However, in this method, the heat loss in the wellbore during the circulation treatment causes the wax to precipitate and deposit again. The cleaning is not complete, and the hot washing water column is greater than the formation pressure. The flushing water in the oil well takes a long time to flow back, delaying the production of the oil well
In addition to hot washing, chemical wax removal, mechanical wax removal, and magnetic wax removal can also be used, but the above methods have defects

Method used

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  • An environment-friendly and energy-saving wax removal petroleum machinery
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  • An environment-friendly and energy-saving wax removal petroleum machinery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of environment-friendly and energy-saving wax removal petroleum machinery, such as figure 1 As shown, including rope cap, control room, main control board, power module, first motor, coupling, swivel head, second motor, linear guide, slide table, tool assembly, liquid supply system, end cover, seal centralizer ring. The rope cap is located at the uppermost end of the wax remover, and the lower end is connected to the control room, which is a hollow cylindrical structure, and the main control board, the power module, the first motor and the shaft coupling are arranged in sequence inside it , the main control board includes a wireless transmission module for signal transmission with an external controller, the power supply module supplies power to all electrical components of the wax remover, and the first motor is connected to the rotary head through a coupling , the rotating head is a hollow cylindrical structure, inside which is provided with a second motor and...

Embodiment 2

[0032] An environment-friendly and energy-saving wax removal petroleum machinery. According to the clogging degree of the petroleum pipeline, different working modes can be selected and used. The working mode can be set according to the clogging degree of the petroleum pipeline. The working modes include but are not limited to the following Two working modes:

[0033]General cleaning mode. When the blockage of the oil pipeline to be cleaned is not serious, the cutter assembly is in an open state, the second motor drives the slide table to move forward, and the wax removal knife is opened in the circumferential direction, and the spring can make the cutter head of the wax removal knife self-adaptive to different Diameter of the oil pipeline, and make the cutter head tightly fit on the inner wall of the oil pipeline; then, the liquid supply system starts to work continuously, and sprays the new wax preventive agent through the second nozzle group and adheres to the paraffin on t...

Embodiment 3

[0037] One of the main causes of wax deposition on the inner wall of the pipeline is that the crude oil absorbs the wax through the film. Specifically, when the oil-water emulsion contacts the oil pipe and the surface of the equipment, two types of orientation layers are usually formed, namely, a hydrophobic orientation layer and a hydrophilic orientation layer. . On the one hand, oil-soluble surfactants in hydrocarbons are adsorbed by the surface of oil pipes or equipment, forming an orientation layer with hydrophobic tendency and a crude oil film; on the other hand, when the crude oil film contacts with water without surfactant rupture, forming a hydrophilic alignment layer on its surface. At this time, a large amount of surfactants in hydrocarbons that have not been adsorbed by the metal surface begin to adsorb on this new oil-water interface in the form of hydrophilic groups absorbing water and hydrophobic groups absorbing oil, thus forming a double-layer surface active ag...

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Abstract

The invention provides an environment-friendly and energy-saving wax removal petroleum machinery, which comprises a rope cap, a control room, a main control board, a power supply module, a first motor, a coupling, a rotary head, a second motor, a linear guide rail, a sliding Platform, cutter assembly, liquid supply system, end cover, sealing and centralizing ring, compared with traditional thermal wax cleaning machinery, the petroleum machinery of the present invention can reduce water consumption by more than 95%; reduce sewage discharge by more than 90%; comprehensive production cost drop by more than 75%.

Description

technical field [0001] The invention relates to the field of petroleum machinery, in particular to an environment-friendly and energy-saving wax-removing petroleum machinery. Background technique [0002] When crude oil is mined from the ground to the ground, due to significant changes in geological conditions such as pressure and temperature, some of the paraffin wax originally dissolved in the oil will precipitate and adhere to the inner wall of the crude oil gathering and transportation pipeline. Decline, the flow rate decreases, and in severe cases, it will cause blockage of the oil pipeline. [0003] For crude oil with high wax content, severe wax deposition will occur in the wellbore during the production process, and timely wax removal and maintenance are required, otherwise it will cause wax sticking and wax plugging, which will affect the production of oil wells and even affect the normal production of wellheads. For the above problems, the traditional method is to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B37/02E21B37/06E21B37/00
CPCE21B37/00E21B37/02E21B37/06
Inventor 钱瑞祥花金年
Owner 梁红云
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