Marmen oil field pumping pipe blocking device

A technology of memory alloy and oil suction pipe, which is applied in the direction of pipe components, mechanical equipment, pipes/pipe joints/pipe fittings, etc., which can solve the problems of corrosion and perforation of oil field oil suction pipes, failure to pump oil, small adhesion and friction, etc.

Inactive Publication Date: 2006-01-04
董元源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to corrosion, perforation or geological changes, the oil extraction pipe in the oil field is partially damaged and cannot be pumped.
At present, the method of plugging the local leakage of the oil extraction pipe used in the oil field is: use a deformable rubber lead pipe, under the condition of being compressed into a small diameter, send it to the leakage point by a special feeder, and mechanically expand it manually to make the rubber The lead pipe is tigh

Method used

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  • Marmen oil field pumping pipe blocking device
  • Marmen oil field pumping pipe blocking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] 1. The type of memory alloy used is copper-aluminum-beryllium X series, and the weight percent of the ingredients is: aluminum-9-13%, beryllium-0.1-1.0%, X is chromium-0.02-0.5%, and the rest is copper.

[0009] 2. Using intermediate frequency induction melting, centrifugal casting into a tube blank of 130MM, 6-8MM thick, and 1-6 meters long.

[0010] 3. The tube blank is subjected to homogenization heat treatment, that is, 860°C / 8 hours, air-cooled; then it is heat-treated, that is, 750-860°C / 2 hours, and ice-water cooling; after treatment, it is subjected to 80-500°C / 1 hour aging treatment.

[0011] 4. The processed tube blank is machined into a memory-shaped tube of 126MM, 1-3MM thick, and 1-6 meters long;

[0012] 5. Immerse the memory shaping tube into a liquid nitrogen alcohol solution at about -120°C, or bury it in dry ice for 30 minutes, and press it into a 4-12 petal-shaped plum blossom tube in a mold with a 600-ton press;

[0013] 6. Use the special feeder ...

Embodiment 2

[0015] 1. The kind of memory alloy adopted is copper-zinc-aluminum series, and the weight percent of composition is: zinc 20~32%, aluminum-3.5~6%, the rest is copper.

[0016] 2. Vacuum induction melting is used to cast into a 120MM ingot with a length of 3 meters; the ingot is pierced into a tube blank of 130MM with a thickness of 6 to 8MM and a length of 1 to 6 meters at a temperature of 650-850 ° C. .

[0017] 3-6. Same as 3-6 of Example 1.

Embodiment 3

[0019] 1. The kind of memory alloy used is copper-aluminum-nickel series, and the weight percent of composition is: nickel 20~32%, aluminum-3.5~6%, and the rest is copper.

[0020] 2. Vacuum induction melting is used to cast into a 120MM ingot with a length of 3 meters; the ingot is pierced into a tube blank of 130MM with a thickness of 6 to 8MM and a length of 1 to 6 meters at a temperature of 650-850 ° C. .

[0021] 3-6. Same as 3-6 of Example 1.

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Abstract

The oil pumping pipe blocking device of marmem is for blocking leakage in oil pumping pipe mainly and may be used also in other deep pipes. The present invention features that the blocking device is plum pipe made of marmem and in the thickness of 1-5 mm and diameter of 90-160mm at normal temperature and 100-200 mm after being heated; and that the blocking device together with one heating unit is fed to the leakage site inside the oil pumping pipe and heated through remote control to temperature up to 300 deg c for restoring its diameter and interference fitting to the leakage oil pumping pipe. The marmem of different alloy lines is produced through vacuum or atmospheric smelting and casting, fine machining into the marmem pipe, cooling in dry ice or liquid nitrogen and molding into plum pipe. The present invention has reliable blocking, convenient operation and low cost.

Description

Technical field: [0001] The invention is a plugging device for the local leakage of the oil extraction pipe in the oil field, which is mainly used for the leakage plugging of the oil extraction pipe in the oil field, and can also be used for the plugging of other deep-hole pipelines. Background technique: [0002] Due to corrosion, perforation or geological changes, the oil extraction pipe in the oil field is partially damaged and cannot pump oil. At present, the method of plugging the local leakage of the oil extraction pipe used in the oil field is: use the easily deformable rubber lead pipe, under the condition of being compressed into a small diameter, send it to the leakage point by a special feeder, and expand it mechanically by manual methods to make the rubber The lead pipe is tightly attached to the wall of the oil extraction pipe to play the role of plugging, but because the adhesive force is not strong, the rubber lead pipe itself has low strength, small adhesive ...

Claims

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Application Information

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IPC IPC(8): E21B33/12F16L55/163
Inventor 董元源荣同文张玉武
Owner 董元源
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