Method and device to test anti-scaling and anti-wax precipitation properties of tubular product

An anti-scaling and testing tube technology, applied in the direction of measuring devices, analytical materials, instruments, etc., can solve the problems of lack of versatility, high test costs, high safety hazards, etc., to ensure comparability, improve test efficiency, Easy-to-use effects

Active Publication Date: 2015-04-15
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has cumbersome operation steps, high potential safety hazards, high requirements for test equipment, expensive test equipment, high test cost, and is not universal.
Most importantly, this method cannot truly simulate and evaluate the fouling and waxing of the oil and gas field transport medium when it circulates inside the pipe

Method used

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  • Method and device to test anti-scaling and anti-wax precipitation properties of tubular product
  • Method and device to test anti-scaling and anti-wax precipitation properties of tubular product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: Test the anti-sewage scaling and waxing performance of ordinary carbon steel pipes at room temperature

[0042] (1) Sample preparation: take a carbon steel pipe with a length of 200mm as the test pipe section, measure the weight of the test pipe section with an electronic balance (accuracy 0.1g), measure the inner diameter and wall thickness of the test pipe section with a vernier caliper, and conduct a survey on its inner surface morphology. Take pictures; (2) Fixture assembly: According to the test tube sample diameter, select the clamping block and assemble it in the fixed fixture and sliding fixture, and connect the PTFE delivery pipeline to the fixed fixture and sliding fixture respectively; (3) Sample assembly: put The corrosion-resistant gasket is bonded to both ends of the carbon steel pipe and placed on the sample support frame. Turn the rotating handle of the sliding fixture to make the two ends of the carbon steel pipe fit closely with the two fixtu...

Embodiment 2

[0043] Example 2: Testing the Antigen Oil Scaling and Waxing Performance of Ordinary Carbon Steel Pipes and Ceramic Lined Pipes at 40°C

[0044] (1) Sample preparation: cut carbon steel pipes and ceramic-lined pipes with a length of 300mm as test pipe sections, measure the weight of the test pipe section with an electronic balance (accuracy 0.1g), measure the inner diameter and wall thickness of the test pipe section with a vernier caliper, and compare them. Take photos of the inner surface morphology; (2) Fixture assembly: according to the caliber of the two test pipe samples, select the clamping block and assemble it in the fixed fixture and the sliding fixture, and connect the PTFE delivery pipeline to the fixed fixture and the sliding fixture respectively ; (3) Sample assembly: bond the corrosion-resistant gasket to the two ends of the carbon steel pipe and place it on the sample support frame, turn the rotating handle of the sliding fixture to make the two ends of the carb...

Embodiment 3

[0045] Example 3: Testing the anti-scaling and waxing performance of polyethylene pipes and corrosion-resistant alloy pipes at 60°C

[0046] (1) Sample preparation: Cut polyethylene pipes and corrosion-resistant alloy pipes with a length of 400mm as test pipe sections, measure the weight of the test pipe section with an electronic balance (accuracy 0.1g), measure the inner diameter and wall thickness of the test pipe section with a vernier caliper, and compare them. Take photos of the inner surface morphology; (2) Fixture assembly: according to the caliber of the two test pipe samples, select the clamping block and assemble it in the fixed fixture and the sliding fixture, and connect the PTFE delivery pipeline to the fixed fixture and the sliding fixture respectively ; (3) Sample assembly: the corrosion-resistant gaskets are bonded to the two ends of the polyethylene pipe and placed on the sample support frame, and the rotating handle of the sliding fixture is turned to make th...

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Abstract

The invention discloses a method and a device to test anti-scaling and anti-wax precipitation properties of tubular products. A corrosion resistant centrifugal pump through one end of a conveying pipe is communicated with the other end of a test medium tank and a test tube; the other end of the test tube through a conveying pipe is communicated with the test medium tank; a flow control valve and a digital display fluid flowmeter are arranged on the conveying pipe between the corrosion resistant centrifugal pump and the test tube; a temperature control system for the control of test medium temperature is arranged in the test medium tank; by setting the flow control valve and the digital display fluid flowmeter, the effect of the medium velocity on the anti-scaling and anti-wax precipitation properties of the tubular product can be inspected; and by adding the temperature control system, the effect of medium temperature on the anti-scaling and anti-wax precipitation properties of the tubular product can be inspected. The invention fully considers the simulation of the actual scaling and wax precipitation conditions of tubular products, and has the characteristics of reasonable design, simple structure of test device, convenient operation, fastness and intuition.

Description

technical field [0001] The invention relates to the technical field of testing the anti-scaling and waxing performance of pipes, in particular to a method and a device for testing the anti-scaling and waxing performance of pipes. Background technique [0002] In the process of oil field development, with the change of factors such as the drop of formation pressure, the decrease of gas-oil ratio in the production process, and the drop of formation temperature, wax and a large amount of scale will be produced in the production process of oil wells. When the oilfield development enters the medium-high water cut period, wax deposition and scaling become a common destructive problem in the production process of oil wells. Wax deposition and scaling may occur anywhere in the oil well system, such as in the wellbore or in the formation. Scale can cause blockage, and scale in the formation will cause formation damage, and scale will cause frequent occurrence of oil well salt stickin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 李厚补杨永利张学敏王守泽戚东涛韩飞
Owner BC P INC CHINA NAT PETROLEUM CORP
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