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Determination method for scale inhibiting rate of polymer scale inhibitor

A measurement method and anti-scaling agent technology, applied in the direction of weighing by removing certain components, can solve problems such as failure to achieve results, and achieve the effects of simple operation, high measurement accuracy, and fast measurement speed

Inactive Publication Date: 2012-05-16
袁俊海
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the fact that the structure of the polymer is not fundamentally changed, the expected effect cannot be achieved

Method used

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  • Determination method for scale inhibiting rate of polymer scale inhibitor

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Embodiment

[0029] A method for measuring the anti-fouling rate of a polymer anti-fouling agent that the present invention relates to comprises the following steps:

[0030] (a) Prepare NaCl solution, Na 2 SO 4 solution, polymer antiscalant solution;

[0031] (b) Add 0.000g, 0.010g, 0.030g, 0.050g, 0.100g, 0.200g of polymer antiscaling agent solution to the bottles respectively numbered bottle 0, bottle 1, bottle 2, bottle 3, bottle 4 and bottle 5 g; Add 0.000g, 0.010g, 0.030g, 0.050g of the polymer antiscaling agent solution to the bottles numbered bottle 0', bottle 1', bottle 2', bottle 3', bottle 4' and bottle 5' in sequence , 0.100g, 0.200g;

[0032] (c) Add 50ml of NaCl solution to bottle 0, bottle 1, bottle 2, bottle 3, bottle 4, bottle 5, bottle 0', bottle 1', bottle 2', bottle 3', bottle 4', bottle 5 ' Add Na to 2 SO 4 50ml solution; cap the cork tightly, mix the solution, put the solution in the bottle in a constant temperature water bath to preheat;

[0033] (d) Pour all ...

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PUM

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Abstract

The invention discloses a determination method for the scale inhibiting rate of a polymer scale inhibitor. The method comprises the following steps: preparing solutions, sequentially adding the prepared solutions into bottles, carrying out pumping filtration on the solutions in the bottles, drying obtained precipitation, weighing the mass of the precipitation, calculating the scale inhibiting rate according to results of weighing, etc. The method provided in the invention has the advantages of simple operation, a fast determination speed, high determination precision and reduced cost for determination; performance quality of the polymer scale inhibitor can be determined by determining the scale inhibiting rate of the polymer scale inhibitor.

Description

technical field [0001] The invention relates to a method for measuring the anti-scaling rate of a polymer anti-scaling agent. Background technique [0002] Formation water is produced during oil extraction, and Ba 2+ 、Sr 2+ , SO 4 2- Anions and cations exist in different formation water and injected water, when Ba 2+ 、Sr 2+ , SO 4 2- After mixing the two water phases, barium sulfate and strontium sulfate scales are easily produced, which block the ground pipelines and rock pores, seriously affecting crude oil production. Because barium and strontium scales are not easy to be dissolved by common acids, once they are formed, they are difficult to remove. Oilfield sites usually use anti-scaling agents to prevent the formation of barium and strontium scales. [0003] The early application of antiscaling agent can be traced back to the 1930s. At that time, the antiscaling agent used was mostly natural products (such as lignin and tannin, etc.), which were not stable in co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 袁俊海
Owner 袁俊海