Washing agent and washing method for paraffin removal and unplugging of oil wells and oil pumping pipelines of oil fields

A technology for oil pumping pipeline and cleaning agent, which is used in the field of cleaning oil wells and pipelines, oil wells in oil fields, cleaning agents for removing wax and blockage of oil pumping pipelines, and cleaning agents, can solve problems such as high cost and large pollution, and reduce water content. , The effect of prolonging the wax deposition period and reducing the viscosity

Inactive Publication Date: 2009-11-18
杨强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cleaning agent for oil wells and oil pumping pipelines to remove wax and blockages, which solves the problems of high cost and heavy pollution in the traditional method of cleaning oil well pipe walls

Method used

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  • Washing agent and washing method for paraffin removal and unplugging of oil wells and oil pumping pipelines of oil fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] According to the mass percentage of 85%: 10%: 5%, take by weighing spherical aluminum powder, powdery sodium gluconate and powdery dodecyl hydroxyl with a particle size of 28.76 μm, and mix them evenly to obtain heat-generating powder; The heat generating powder is stirred into a paste with a small amount of crude oil, and injected into the oil well from the annulus of the oil well pipeline; the oil well pipeline is washed with 30 to 50 liters of water; 10% sodium hypochlorite solution and 96% ionic alkali solution are mixed evenly to obtain a cleaning agent; according to the mass percentage of heat generating powder: cleaning agent=1:25, the cleaning agent is weighed and injected into the annulus of the oil well pipeline. in the oil well.

Embodiment 2

[0030] According to the mass percentage of 90%: 8%: 2%, take by weighing spherical aluminum powder, powdery sodium gluconate and powdery dodecyl hydroxyl with a particle size of 28.76 μm, and mix them evenly to obtain heat-generating powder; The heat generating powder is stirred into a paste with a small amount of water, and injected into the oil well from the annular space of the oil well pipeline; the oil well pipeline is washed with 30-50 liters of water; 14% sodium hypochlorite solution and 100% ionic alkaline solution are mixed evenly to obtain a cleaning agent; according to the mass percentage of heat-generating powder: cleaning agent=1:50, the cleaning agent is weighed and injected into the annulus of the oil well pipeline. in the oil well.

Embodiment 3

[0032] According to the mass percentage of 80%: 15%: 5%, take by weighing spherical aluminum powder, powdery sodium gluconate and powdery dodecyl hydroxyl with a particle size of 28.76 μm, and mix them evenly to obtain heat-generating powder; The heat generating powder is stirred into a paste with a small amount of water, and injected into the oil well from the annular space of the oil well pipeline; the oil well pipeline is washed with 30-50 liters of water; 13% sodium hypochlorite solution and 99% ionic alkali solution are mixed evenly to obtain a cleaning agent; the cleaning agent is weighed according to the mass percentage heat generating powder: cleaning agent = 1:35, and injected into the oil well from the annular space of the well pipeline middle.

[0033] Table 1 is to adopt cleaning agent of the present invention to clean oil well pipeline, the oil well condition before cleaning and the oil well condition comparison after cleaning:

[0034] Table 1 Comparison table o...

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Abstract

The invention discloses a washing agent for paraffin removal and unplugging of oil wells and oil pumping pipelines of oil fields, which comprises heat generation powder and a detergent in the ratio of 1: 25-50 by mass percentage, wherein the heat generation powder comprises the following components by mass percentage: 80 to 90 percent of spherical aluminum powder, 8 to 15 percent of powdery gluconic acid sodium salt, and 2 to 5 percent of powdery hydroxyldodecane; and the detergent comprises the following components by the mass percentage: 85 to 90 percent of sodium hypochlorite solution, and 10 to 15 percent of chlor-alkali solution. The invention also discloses a washing method, which comprises the steps: weighing the spherical aluminum powder, the gluconic acid sodium salt and the hydroxyldodecane, and obtaining the heat generation powder by mixing; weighing a certain amount of the heat generation powder, using crude oil or water to stir the heat generation powder, injecting the mixture into an oil well from a hohlraum of an oil well pipeline, and then using the water to wash; weighing the sodium hypochlorite solution and the chlor-alkali solution, and obtaining the detergent after the mixing; and weighing the detergent according to the mass ratio of the heat generation powder to the detergent being 1: 25-50, and injecting the detergent into the oil well from the hohlraum of the oil well pipeline. The washing agent has low cost and less pollution.

Description

technical field [0001] The invention belongs to the technical field of chemical materials, and relates to a cleaning agent, in particular to a cleaning agent used for wax removal and blocking removal of oil wells and oil pumping pipelines in oil fields, and also relates to a method for cleaning oil wells and pipelines using the cleaning agent. Background technique [0002] For a long time, the wax formation and clogging of the oil well pipe wall in the oil production area has been plagued by the normal production of oil production, especially in the low temperature season of the year, the problem of wax formation is particularly prominent. Chemical preparations to remove wax and other measures, but these traditional methods are affected by the geographical location of the oil production area (the oil production area is mostly the loess plateau, with vertical and horizontal gullies, and the ground elevation is about 1200m-1700m, the traffic is very unfavorable, and the area is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/524E21B37/06
Inventor 杨强
Owner 杨强
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