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Novel flange type tubing pup joint used for oil field

A technology of using flange type and oil pipe, applied in drilling pipe, casing, drilling equipment, etc., can solve the problems of poor versatility and unsatisfactory use effect, and achieve the effect of wide application range, flexible use and tight connection

Inactive Publication Date: 2019-12-17
李旭东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The diameter of the oil hole of the oil pipe nipple used in the oil field is fixed, and the versatility is not good. It can only be used exclusively for the oil pipe nipple. Sometimes, the oil pipe nipple with the same oil hole diameter cannot be replaced. , the effect of using is not ideal

Method used

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  • Novel flange type tubing pup joint used for oil field
  • Novel flange type tubing pup joint used for oil field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A new type of flanged tubing sub-joint for oil fields, which consists of: a tubing sub-joint 1, the tubing sub-joint has an oil passage hole 2, and a group of insertion fixing holes 3 are opened around the circumference of the tubing sub-joint, the There are 3-8 plug-in fixing holes described above, and the described plug-in fixing holes connect three triangular slots 4 with an included angle of 120︒ around the circumference, and the described plug-in fixing holes connect to the positioning card slot 5. Insert the fixed rod 6 tightly into the plug-in fixing hole, and the fixed rod connects three triangular insert rods 7 with an included angle of 120︒ around the circumference, and the triangular insert rod is tightly fitted and inserted into the triangular slot , the fixed rod is fixedly connected to the positioning clamp 8, the positioning clamp is fixedly connected to the bushing sleeve 9, the inner diameter of the bushing sleeve is 4 minutes to 2 inches, and the bushin...

Embodiment 2

[0021] In the novel flanged tubing pup joint for oil fields described in Example 1, the inner diameter of the bushing is 4 inches or 6 inches or 1 inch or 1.2 inches or 1.5 inches or 2 inches.

[0022] working principle:

[0023] Choose 4 points or 6 inches or 1 inch or 1.2 inches or 1.5 inches or 2 inches bushing sleeve according to the needs, insert the fixed rod tightly into the plug fixing hole, the triangular insert rod tightly fit into the triangular slot, and position the card The plate is tightly fitted and inserted into the positioning card slot to fix the bushing sleeve, and a sealing ferrule is installed between the bushing sleeve and the oil hole.

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Abstract

Disclosed is a novel flange type tubing pup joint used for an oil field. The novel flange type tubing pup joint comprises a tubing pup joint, wherein the tubing pup joint is provided with an oil through hole; a set of inserting connection fixing holes are formed around the circumference of the tubing pup joint; the number of the inserting connection fixing holes is 3 to 8; the circumference of each of the inserting connection fixing holes is connected with three triangular inserting grooves with an included angle of 120 degrees; the inserting connection fixing holes are connected to position-fixing clamping grooves; fixing rods are inserted into the inserting connection fixing holes in a tight fit manner; the circumference of each of the fixing rods is connected with three triangular inserting rods with an included angle of 120 degrees; the triangular inserting rods are inserted into the triangular inserting grooves in a tight fit manner; the fixing rods are fixedly connected to position-fixing clamping plates; the position-fixing clamping plates are fixedly connected to a bushing; the inner diameter of the bushing is 0.4 cun to 2 cuns; the bushing is inserted into the oil throughhole; and the position-fixing clamping plates are inserted into the position-fixing clamping grooves in a tight fit manner. The novel flange type tubing pup joint is used for the oil field.

Description

Technical field: [0001] The invention relates to a novel flange type oil pipe pup joint used in oil fields. Background technique: [0002] The diameter of the oil hole of the oil pipe nipple used in the oil field is fixed, and the versatility is not good. It can only be used exclusively for the oil pipe nipple. Sometimes, the oil pipe nipple with the same oil hole diameter cannot be replaced. , the effect is not ideal. Invention content: [0003] The purpose of the present invention is to provide a new type of flanged tubing sub-joint for oilfields that can be equipped with a bushing as required so that the oil hole can be adjusted as required. [0004] Above-mentioned purpose realizes by following technical scheme: [0005] A novel flanged tubing nipple for oilfields, which consists of: a tubing nipple, the tubing nipple has an oil hole, and a group of plugging and fixing holes are opened around the circumference of the tubing nipple, and the plugging There are 3-8 fix...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/02E21B33/12
CPCE21B17/02E21B33/12
Inventor 李旭东孟祥勇蒋伟蔡洪星陈红超武守林贾洪跃徐洪志陈有史旭光
Owner 李旭东
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