CN-122024148-A - Method, device and equipment for identifying high-consequence area of sulfur-containing natural gas pipeline

CN122024148ACN 122024148 ACN122024148 ACN 122024148ACN-122024148-A

Abstract

The embodiment of the specification relates to the technical field of ground engineering, in particular to a method, a device and equipment for identifying a high-consequence area of a sulfur-containing natural gas pipeline. The method comprises the steps of obtaining pipeline information and path information of pipelines according to design data and on-site investigation conditions of the sulfur-containing natural gas pipelines, determining potential dangerous areas which are possibly affected when the pipelines fail, dividing regional grades according to the pipeline information of the pipelines in the potential dangerous areas, identifying environment information in the regional grades, and determining high-consequence areas of the sulfur-containing natural gas pipelines according to regional grade division results and identification results of the environment information. Through the embodiment of the specification, through the effective management and control of the high-consequence area of the sulfur-containing natural gas pipeline, a manager can find management key points conveniently, and meanwhile, the patrol work can be arranged in a targeted manner conveniently, so that risks can be controlled in a reasonable and acceptable range in time.

Inventors

TANG FEI
ZHANG LINGFAN
SHU JIE
LUO QIANYUN
LENG XIANGYU
FU JIN

Assignees

中国石油天然气股份有限公司

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (12)

1. A method for identifying a high-consequence area of a sulfur-containing natural gas pipeline, the method comprising: Acquiring pipeline information and path information of the pipeline according to design data and on-site investigation conditions of the sulfur-containing natural gas pipeline; Determining a potentially dangerous area which can cause influence when the pipeline fails according to the path information; Dividing regional grades according to pipeline information of pipelines in the potential dangerous areas; Identifying environmental information in the potentially dangerous area; And determining a high-consequence area of the sulfur-containing natural gas pipeline according to the regional grading result and the identification result of the environmental information.
2. The method for identifying a high-consequence zone of a sulfur-containing natural gas pipeline according to claim 1, wherein the pipeline information comprises pipeline outer diameter, pipeline inner diameter, pipeline length and pipeline operating pressure; The path information includes path region information of the pipeline, and start and stop point coordinates.
3. The method for identifying a high consequence zone of a sour gas pipeline according to claim 2, wherein the potentially dangerous area comprises an accident potential impact range and a hydrogen sulfide impact range.
4. The method for identifying high-consequence zones of sulfur-containing natural gas pipelines of claim 3, wherein determining the range of potential impact of an accident further comprises: Judging the potential influence range of the accident according to the pipeline information; If the pipeline running pressure of the pipeline is less than 1.6Mpa and the pipeline outer diameter is less than 273mm, judging that the radius of the potential influence range of the accident is 35m; if the pipeline running pressure of the pipeline is greater than 6.9Mpa and the pipeline outer diameter is greater than 762mm, judging that the radius of the accident potential influence range is expressed as: wherein d is the outer diameter of the pipeline, p is the operating pressure of the pipeline, R is the radius of the potential influence range of the accident; In other cases, the radius of the accident potential impact range is 200m.
5. The sulfur-containing natural gas pipeline high-consequence zone identification method of claim 4, wherein determining the hydrogen sulfide impact range comprises: Dividing the pipeline into low-sulfur, medium-sulfur, higher-sulfur and high-sulfur pipelines according to the sulfur content in the pipeline information; If the sulfur content is more than 20mg/m 3 and less than 5g/m 3 , the pipeline is low in sulfur content, and the potential influence range of accidents is used as the influence range of hydrogen sulfide; If the sulfur content is more than 5g/m 3 and less than 30g/m 3 , the hydrogen sulfide pipeline is the medium sulfur pipeline, and the hydrogen sulfide influence range is judged by combining the operating pressure in the pipeline information and the nominal pipe diameter; If the sulfur content is more than 30g/m 3 and less than 75g/m 3 , judging the influence range of the hydrogen sulfide by combining the operating pressure, the pipeline length and the nominal pipe diameter in the pipeline information; if the sulfur content is more than 75g/m 3 , the pipeline is a high sulfur content pipeline, and the influence range of the hydrogen sulfide is judged by combining the design mode in the pipeline information and the path area information.
6. The method for identifying a high-consequence zone of a sour natural gas pipeline according to claim 5, wherein determining the high-consequence zone of the sour natural gas pipeline based on the regional classification result and the identification result of the environmental information further comprises, Judging the regional grade of the potential danger area according to the potential influence range of the accident, the influence range of the hydrogen sulfide and the maximum leakage amount when the sulfur-containing natural gas pipeline fails; The higher the zone level represents the greater the potential hazard for the zone; And identifying a specific field and traffic facilities in the area with the potential danger larger than the threshold value, and judging whether the area is a high-consequence area according to the identification result.
7. The method for identifying areas of high consequence of sulfur-containing natural gas pipelines according to claim 6, wherein the maximum leakage in case of failure of the sulfur-containing natural gas pipelines further comprises, The formula for calculating the maximum leakage Qm when the sulfur-containing natural gas pipeline fails is as follows: Wherein d i is the inner diameter of the pipeline, mm, P is the running pressure of the medium, MPa, L is the length of the pipeline, km, q is the running transmission capacity of the pipeline, m 3 /s, t is the leakage time before cutting, and s.
8. The method of identifying a high-consequence zone of a sour natural gas pipeline according to claim 6, further comprising, after determining the high-consequence zone of the sour natural gas pipeline, And counting the number of specific places and the number of population households in the high-result area, and marking the pipeline trend and the range of the high-result area by adopting a satellite map or an aerial photo.
9. A sulfur-containing natural gas pipeline high-consequence zone identification apparatus, the apparatus comprising: the information investigation module is used for acquiring pipeline information and path information of the pipeline according to design data and on-site investigation conditions of the sulfur-containing natural gas pipeline; The dangerous area determining module is used for determining a potential dangerous area which can cause influence when the pipeline fails according to the path information; The regional grade classification module is used for classifying regional grades according to the pipeline information of the pipelines in the potential dangerous areas; An environmental information identification module for identifying environmental information in the potentially dangerous area; and the high-consequence area identification module is used for determining the high-consequence area of the sulfur-containing natural gas pipeline according to the regional grading result and the environmental information identification result.
10. A computer device comprising a memory, a processor, and a computer program stored on the memory, characterized in that the processor implements the method of any of claims 1 to 8 when executing the computer program.
11. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, implements the method of any one of claims 1 to 8.
12. A computer program product, characterized in that the computer program product comprises a computer program which, when executed by a processor, implements the method of any one of claims 1 to 8.

Description

Method, device and equipment for identifying high-consequence area of sulfur-containing natural gas pipeline Technical Field The embodiment of the specification relates to the technical field of ground engineering, in particular to a method, a device and equipment for identifying a high-consequence area of a sulfur-containing natural gas pipeline. Background At present, in the recognition situation of the high-result area of the oil gas conveying pipeline passing by the personnel-dense place, the classification statistical table of the high-result area of the personnel-dense place is required to be further refined, each enterprise is required to fill the statistical table of the high-result area of the personnel-dense place, and meanwhile, the safety management work of the high-result area of the oil gas conveying pipeline passing by the personnel-dense place is required to be remarkably strengthened, so that the heavy and extra-large production safety accidents of the oil gas conveying pipeline are effectively prevented. Meanwhile, the medium conveyed by the sulfur-containing natural gas pipeline has dangerous characteristics such as inflammability, explosiveness, toxicity and the like, and once the sulfur-containing natural gas pipeline fails, huge economic loss and environmental loss can be caused, and even the life and property safety of people can be seriously threatened, so that irreversible consequences are caused. The high-consequence areas of sulfur-containing natural gas pipelines are not constant, and as the population and environment on both sides of the pipeline change, pipeline operators should periodically re-collect relevant data to re-identify the high-consequence areas on both sides of the managed pipeline. Therefore, the high-consequence area identification is carried out on the sulfur-containing natural gas pipeline regularly, the area where serious consequences can be caused by pipeline failure is found, management key points can be found conveniently by a manager, and meanwhile, the patrol work can be arranged in a targeted manner conveniently. The identification method for the high-consequence area in the prior art is single, and the high-consequence area needs to be changed along with the population and the environment change at the two sides of the pipeline, so that the high-consequence area is difficult to be identified again in the prior art. Therefore, how to calculate the accident influence radius and the hydrogen sulfide influence radius of the sulfur-containing natural gas pipeline and determine the high-consequence area range of the sulfur-containing natural gas pipeline is a technical problem to be solved urgently at present. Disclosure of Invention In order to solve the problem that the high-consequence area is difficult to re-identify in the prior art, the embodiment of the specification provides a method, a device and equipment for identifying the high-consequence area of a sulfur-containing natural gas pipeline, the influence radius range of the sulfur-containing natural gas pipeline is comprehensively determined by calculating the accident influence radius of the sulfur-containing natural gas pipeline and the influence radius of 100Pppm and 500ppm hydrogen sulfide, the condition along the sulfur-containing natural gas pipeline, including the conditions of regional grade, specific places, inflammable and explosive places, traffic facilities and the like, is investigated, and finally the high-consequence area range of the sulfur-containing natural gas pipeline is determined according to an identification criterion. The specific technical scheme of the embodiment of the specification is as follows: In one aspect, embodiments of the present disclosure provide a method for identifying a high-consequence area of a sour natural gas pipeline, the method comprising: Acquiring pipeline information and path information of the pipeline according to design data and on-site investigation conditions of the sulfur-containing natural gas pipeline; Determining a potentially dangerous area which can cause influence when the pipeline fails according to the path information; Dividing regional grades according to pipeline information of pipelines in the potential dangerous areas; Identifying environmental information in the potentially dangerous area; And determining a high-consequence area of the sulfur-containing natural gas pipeline according to the regional grading result and the identification result of the environmental information. Further, the pipeline information comprises pipeline outer diameter, pipeline inner diameter, pipeline length and pipeline operating pressure; The path information includes path region information of the pipeline, and start and stop point coordinates. Further, the potentially dangerous area includes an accident potential impact range and a hydrogen sulfide impact range. Further, determining the range of potential impact of the incident further comprises: Ju