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Method for producing titanium polymer resin anti-dirty corrosion-resistant oil pipe for oil field

A technology of titanium polymer and tubing, which is applied in the field of preparing oil tubing for oilfields, to achieve the effects of high adhesion, strong penetration resistance, and high boiling water resistance

Inactive Publication Date: 2008-09-24
DAQING PETROLEUM ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method solves the fouling and corrosion problems of downhole tubing strings in oilfields under complex industrial and mining conditions, protects the tubing, prolongs the service life of tubing, and saves oil production costs

Method used

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  • Method for producing titanium polymer resin anti-dirty corrosion-resistant oil pipe for oil field
  • Method for producing titanium polymer resin anti-dirty corrosion-resistant oil pipe for oil field
  • Method for producing titanium polymer resin anti-dirty corrosion-resistant oil pipe for oil field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A 73×5.51mm oil pipe with a length of 9.7m is selected. After sandblasting and derusting, the outer surface of the oil pipe is sprayed with titanium polymer anti-scaling and anti-corrosion coating with compressed air; the inner wall of the oil pipe is sprayed with high-pressure airless titanium polymer anti-scaling and anti-corrosion coating. The coating ratio is: Component A: Component B=100:15 (weight ratio). The titanium polymer anti-corrosion coating used on the inner wall is cured using a curing tempering furnace. The inner and outer surfaces are cured at the same time, curing conditions: curing temperature 60°C, curing time 60min, furnace power 200kw, the oil pipe advances while rotating in the quenching and tempering curing furnace, and the oil pipe rotates at a speed of 50r / min.

[0017] The titanium polymer antifouling and anticorrosion coating comprises the following components by weight percentage:

[0018]

[0019] Among them, epoxy resin E-03 type, epox...

Embodiment 2

[0022] The titanium polymer antifouling and anticorrosion coating comprises the following components by weight percentage:

[0023] raw material name

Dosage, %

Epoxy resin (E-03)

55

Butanol Etherified Phenolic Resin

13

epoxy ester

2

Cyclohexanone

10

Xylene

12

Titanium polymer filler

8

[0024] Manufacturer of butanol etherified phenolic resin and epoxy ester: Wuxi Paint Factory.

[0025] Curing conditions: normal temperature for 24 hours; other conditions are the same as in Example 1.

[0026] The tubing has been used in Well 2-Xing 1-P4 in the Xingerzhong block of Daqing for more than a year with anti-scaling and anti-corrosion tubing, and there has been no pump jamming due to scaling.

Embodiment 3

[0028] The titanium polymer antifouling and anticorrosion coating comprises the following components by weight percentage:

[0029]

[0030] Curing at room temperature for 24 hours; other conditions are the same as in Example 1.

[0031] In the field test of the 1-6-P34 ASP flooding well in North Daqing, the well basically needs to be pickled and cleaned every 20 days, otherwise the phenomenon of scaling and shrinking of the tubing and scale falling off and jamming the pump will occur. , affecting normal production, it can be seen that the scale phenomenon is relatively serious. During the use of the oil pipe obtained in this embodiment, the scale cleaning interval reached 60 days, which was 40 days longer than before, which was twice as long. The scale is loose and can be wiped off by hand without affecting oil field production.

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Abstract

A preparation method for a titanium polymer resin, scale inhibition and anti-corrosion tube which is used in the oil field is disclosed. The preparation method for the titanium polymer resin, scale inhibition and anti-corrosion tube which is used in the oil field has the following procedures that the external and internal walls of the tube are coated with paint after the pre-treatment for the tube surface; the paint is produced that 7 percent to 20 percent titanium polymer fillings are added in the routine epoxy resin paint; the internal wall of the tube applies the high pressure, airless and stereo spray coating way; the external wall of the tube applies the stereo spray coating way with compressed air and three spray guns; the coating layers of the external and internal walls of the tube are adjusted and cured through an adjusting and curing furnace after the spray coating; the power of the furnace is 200KW, the temperature of the furnace is 50 degrees to 180 degrees and the curing time is 60 minutes; the tube rotates and moves forward in the adjusting and curing furnace; and the self-rotating speed of the tube is 30r / min to 80r / min. The preparation method solves the scaling and corrosion problem of the underground tube in the oil field under complex industrial and mining conditions, which protects the tube, prolongs the using life of the tube and saves the oil extraction cost.

Description

Technical field: [0001] The invention relates to a method for preparing an oil pipe used in an oil field, in particular to a method for preparing an oil pipe with anti-scaling and anti-corrosion properties. Background technique: [0002] In recent years, my country's polymer flooding technology has developed rapidly. Since the 1990s, it has developed from field tests to large-scale application in Daqing, Liaohe, Shengli, Dagang and North China oil fields. From self-spraying production to mechanical production, from water flooding and polymer flooding to tertiary oil recovery technology dominated by ternary polymer flooding, a set of relatively successful oilfield development technologies has been formed. In Daqing, about 56,800 wells have been put into production. The first oil production plant, the third oil production plant, the sixth plant, and the seventh plant have all carried out tertiary oil recovery tests. There are 35 industrial test blocks and more than 5,700 test ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L58/02
Inventor 何德江米子成曾杰赵抒音朴恩哲赵清敏
Owner DAQING PETROLEUM ADMINISTRATION
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