Analysis and Control of Scaling on Submarine Pipelines in an Oilfield

LU Xudong, WANG Guohong, NING Yonggeng, SUN Ming, LIU Haiting

doi:10.16577/j.issn.1001-1560.2023.0101

Materials Protection >

2023 , Vol. 56 >Issue 4: 188 - 193

DOI: https://doi.org/10.16577/j.issn.1001-1560.2023.0101

Analysis and Control of Scaling on Submarine Pipelines in an Oilfield

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(CNOOC Tianjin Branch，Tianjin 300450，China)

Received date: 2022-10-21

Revised date: 2022-11-20

Accepted date: 2022-12-14

Online published: 2023-08-04

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Abstract

In order to solve the scaling problem of submarine pipelines in an oilfield，the foam electronic geometric ball was used to detect the distribution of the internal sediment along the pipeline，and the water sample composition of the transport medium was analyzed to evaluate the scaling trend of the inner wall of the pipeline.XRD and XRF were used to test the phase and element content of the sediment.Results showed that the scaling tendency of CaCO3 in the marine pipeline was obvious，and it was speculated that the sulfate reducing bacteria (SRB) also had a certain influence on scaling.Stopping the marine pipeline heater，adding anti-scaling agent and bactericide to reduce the tendency of scaling，the measures of complex scale removal and progressive pellet removal were verified to remove the sediment inside the marine pipe.

Key words： scaling; coordination compound descaling; progressive pellet; anti-scaling agent; sulfate reducing bacteria (SRB)

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LU Xudong, WANG Guohong, NING Yonggeng, SUN Ming, LIU Haiting . Analysis and Control of Scaling on Submarine Pipelines in an Oilfield[J]. Materials Protection, 2023 , 56(4) : 188 -193 . DOI: 10.16577/j.issn.1001-1560.2023.0101

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