Method and device for determining influence level of oil pipeline leakage on natural environment

Abstract

An embodiment of the present invention provides a method and device for determining the impact level of an oil pipeline leakage on the natural environment. The method includes: determining a biological richness index according to the richness of organisms in a preset area; determining a vegetation coverage index according to the coverage degree of vegetation in the preset area; determining a water source density index according to the richness of water resources in the preset area; determining a pollution emission index according to the pollution pressure on the environment in the preset area; determining an impact index of the oil pipeline leakage on the natural environment according to the biological richness index, the vegetation coverage index, the water source density index and the pollution emission index; and determining the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment. The embodiment of the present invention completes the analysis of the impact degree of the pipeline leakage on the environment, and thus can provide technical support for the special emergency management of the pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline transportation, and particularly relates to a method and device for determining the impact level of an oil pipeline leak on the natural environment. Background Art

[0002] Currently, the development of the oil pipeline industry is relatively stable. However, due to the complex laying environment along the way, the stable operation of the oil pipeline is easily threatened by various harmful factors such as external construction, natural disasters, and design mistakes. In recent years, although new technologies such as drone line patrol, intelligent cathodic protection piles, and optical fiber monitoring have been introduced to reduce the possibility of pipeline failure, during the pipeline operation process, the occurrence of leakage accidents is still inevitable.

[0003] The medium of the oil pipeline is flammable, explosive, toxic, and harmful. Once the pipeline fails and leaks, it may cause fires and explosions, resulting in serious economic losses and casualties, and at the same time causing environmental pollution. The primary task after the pipeline leaks is to carry out emergency rescue and decontamination operations. However, due to the lack of an accurate grasp of the severity of the accident consequences, it often leads to waste of resources or further expansion of the accident, seriously affecting the enterprise's efficiency and reputation, and causing devastating damage to the surrounding environment.

[0004] The leakage consequences of the oil pipeline include casualties, economic losses, and environmental damage. The inventor found that in the prior art, the degree of casualties can be evaluated by calculating individual risk and social risk, and the degree of economic losses can be evaluated by combining product losses, maintenance budgets, casualty compensation, etc. However, for the evaluation of the degree of environmental damage, especially the damage to the natural environment, there is a lack of relevant technical support. Therefore, it is urgent to establish an evaluation system for the degree of damage to the natural environment caused by oil pipeline leaks. Summary of the Invention

[0005] In view of the problems in the prior art, an embodiment of the present invention provides a method and device for determining the impact level of an oil pipeline leak on the natural environment.

[0006] Specifically, the embodiment of the present invention provides the following technical solutions:

[0007] In a first aspect, an embodiment of the present invention provides a method for determining the impact level of an oil pipeline leak on the natural environment, including:

[0008] Determining a biological richness-poverty index according to the richness of organisms in a preset area; wherein, the preset area is the impact area of the oil pipeline leak;

[0009] Determining a vegetation coverage index according to the coverage degree of vegetation in the preset area;

[0010] Determining a water source density index according to the richness of water resources in the preset area;

[0011] Determine the pollution emission index according to the pollution pressure of the environment within the preset area;

[0012] Determine the impact index of the oil pipeline leakage on the natural environment according to the biological richness and poverty index, vegetation coverage index, water source density index, and pollution emission index;

[0013] Determine the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment.

[0014] Further, the determination of the biological richness and poverty index according to the richness of organisms within the preset area specifically includes:

[0015] Determine the biological richness and poverty index according to the richness of organisms within the preset area by using the first relationship model; where the first relationship model is:

[0016] I sf = C sf ×(0.35×A li +0.21×A ca +0.11×A ge +0.28×A sh +0.04×A ji +0.01×A we ) / A

[0017] where, I sf is the biological richness and poverty index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; A sh is the water area wetland area, m 2 ; A ji is the construction land area, m 2 ; A we is the unused land area, m 2 ; A is the area of the preset area, m 2 ; C sf is the normalization coefficient of the biological richness and poverty index.

[0018] Further, the determination of the vegetation coverage index according to the coverage degree of vegetation within the preset area specifically includes:

[0019] Determine the vegetation coverage index according to the coverage degree of vegetation within the preset area by using the second relationship model; where the second relationship model is:

[0020] I zf = C zf ×(0.38×Ali +0.34×A ca +0.19×A ge ) / A

[0021] Among them, I zf is the vegetation coverage index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; A is the area of the preset area, m 2 ; C zf is the normalization coefficient of the vegetation coverage index.

[0022] Furthermore, the determination of the water source density index according to the abundance of water resources in the preset area specifically includes:

[0023] Determine the water source density index by using the third relationship model according to the abundance of water resources in the preset area; among them, the third relationship model is:

[0024] I sh =(C riv × river length + C lak × water area + C res × water resource volume) / 3·A

[0025] Among them, I sh is the water source density index; C riv is the normalization coefficient of the river length; C lak is the normalization coefficient of the water area; C res is the normalization coefficient of the water resource volume; both the river length and the water area only consider the range affected by pipeline leakage; the water resource volume is determined according to the annual average precipitation; A is the area of the preset area, m 2 .

[0026] Furthermore, the determination of the pollution emission index according to the pollution pressure of the environment in the preset area specifically includes:

[0027] Determine the pollution emission index by using the fourth relationship model according to the pollution pressure of the environment in the preset area; among them, the fourth relationship model is:

[0028] I oi =C oi × oil spill volume / annual precipitation in the area

[0029] Among them, I oi is the pollution emission index; C oiis the normalization coefficient of the oil product; the oil product leakage amount = x × T, where x is the leakage rate and T is the predicted leakage time of the oil product; the leakage rate x is calculated through the fifth relationship model, and the fifth relationship model is:

[0030]

[0031] where x is the leakage rate, kg / s; C d is the leakage coefficient of the leakage liquid; A is the leakage hole area, m 2 ; ρ is the fluid density, kg / m 3 ; p is the internal pressure of the pipeline, Pa; p0 is the atmospheric pressure, Pa.

[0032] Further, determining the impact index of the oil pipeline leakage on the natural environment according to the biological richness and poverty index, vegetation coverage index, water source density index, and pollution emission index specifically includes:

[0033] Determining the impact index of the oil pipeline leakage on the natural environment by using the sixth relationship model according to the biological richness and poverty index, vegetation coverage index, water source density index, and pollution emission index, where the sixth relationship model includes:

[0034] I = w1 × I sf + w2 × I zf + w3 × I sh + w4 × I oi

[0035] where I is the impact index of the oil pipeline leakage on the natural environment; I sf is the biological richness and poverty index; I zf is the vegetation coverage index; I sh is the water source density index; I oi is the pollution emission index; w1 is the weight of the biological richness and poverty index; w2 is the weight of the vegetation coverage index; w3 is the weight of the water source density index; w4 is the weight of the pollution emission index.

[0036] Further, determining the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment specifically includes:

[0037] Determining the impact index range interval where the natural environment impact index is located according to the impact index of the oil pipeline leakage on the natural environment;

[0038] Querying the pre-established impact level table according to the impact index range interval to obtain the impact level of the oil pipeline leakage on the natural environment;

[0039] where the corresponding relationship between each impact level and each impact index range interval is pre-stored in the impact level table.

[0040] In a second aspect, an apparatus for determining the impact level of an oil pipeline leak on the natural environment provided by an embodiment of the present invention includes:

[0041] A first determination module, configured to determine a biological richness-poverty index according to the richness of organisms in a preset area; wherein, the preset area is the affected area of the oil pipeline leak;

[0042] A second determination module, configured to determine a vegetation coverage index according to the coverage degree of vegetation in the preset area;

[0043] A third determination module, configured to determine a water source density index according to the richness of water resources in the preset area;

[0044] A fourth determination module, configured to determine a pollution emission index according to the pollution pressure on the environment in the preset area;

[0045] A fifth determination module, configured to determine an impact index of the oil pipeline leak on the natural environment according to the biological richness-poverty index, the vegetation coverage index, the water source density index, and the pollution emission index;

[0046] A sixth determination module, configured to determine the impact level of the oil pipeline leak on the natural environment according to the impact index of the oil pipeline leak on the natural environment.

[0047] In a third aspect, an electronic device provided by an embodiment of the present invention includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the method for determining the impact level of an oil pipeline leak on the natural environment as described in the first aspect is implemented.

[0048] In a fourth aspect, a non-transitory computer-readable storage medium provided by an embodiment of the present invention stores a computer program thereon. When the computer program is executed by a processor, the method for determining the impact level of an oil pipeline leak on the natural environment as described in the first aspect is implemented.

[0049] As can be seen from the above technical solutions, the method and apparatus for determining the impact level of an oil pipeline leak on the natural environment provided by the embodiments of the present invention start from two perspectives of the pipeline surrounding environment and the pipeline leak situation, fully considering the richness and poverty of organisms in the area, the height of vegetation coverage, the richness of water sources, and the pollutant pressure borne. According to the biological richness-poverty index, the vegetation coverage index, the water source density index, and the pollution emission index, the impact index of the oil pipeline leak on the natural environment is determined. Furthermore, based on the index level division principle, according to the impact index of the oil pipeline leak on the natural environment, the impact level of the oil pipeline leak on the natural environment is determined, thus completing the analysis of the impact degree of the pipeline leak on the environment, and further providing technical support for the special emergency management of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] To more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0051] Figure 1 It is a flowchart of a method for determining the impact level of an oil pipeline leak on the natural environment provided by an embodiment of the present invention;

[0052] Figure 2 It is a schematic structural diagram of a device for determining the impact level of an oil pipeline leak on the natural environment provided by an embodiment of the present invention;

[0053] Figure 3 It is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. Detailed implementation manners

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0055] The objective of the embodiments of the present invention is to optimize emergency resources, improve emergency response capabilities, and minimize the losses caused by pipeline leaks by analyzing the impact degree of an oil pipeline leak on the environment. The following will introduce the solutions of the present invention in detail through specific embodiments.

[0056] Figure 1 It shows a flowchart of a method for determining the impact level of an oil pipeline leak on the natural environment provided by an embodiment of the present invention. As Figure 1 shown, the method for determining the impact level of an oil pipeline leak on the natural environment provided by an embodiment of the present invention includes the following steps:

[0057] Step 101: Determine the biological richness-poverty index according to the richness of organisms in a preset area; wherein, the preset area is the impact area of the oil pipeline leak;

[0058] In this step, the biological richness-poverty index represents the richness of organisms in the region, which can be expressed by the quality of the biological living environment and biodiversity. Generally, there are no dynamic changes in the biodiversity data around the oil pipeline, so it is not considered in the calculation of biodiversity. In this embodiment, the biological richness-poverty index is expressed by the quality of the biological living environment, specifically including forest land, grassland, water wetland, cultivated land, construction land, and unused land. The calculation method of the biological richness-poverty index is as follows:

[0059] I sf = C sf ×(0.35×A li + 0.21×A ca + 0.11×A ge + 0.28×A sh + 0.04×A ji + 0.01×A we ) / A

[0060] Among them, I sf is the biological richness-poverty index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; A sh is the water wetland area, m 2 ; A ji is the construction land area, m 2 ; A we is the unused land area, m 2 ; A is the area of the preset region, m 2 ; C sf is the normalization coefficient of the biological richness-poverty index, and the reference value is 511.26.

[0061] In this step, assume that an oil pipeline crossing a mountain gully leaks. The forest land area around it is 220 m 2 ; the grassland area is 237 m 2 ; the cultivated land area is 0; the water wetland area is 151 m 2 ; the construction land area is 0; the unused land area is 1155 m 2 ; the regional area is 1763 m 2 . Therefore, the biological richness-poverty index I sf = 52.37.

[0062] Step 102: Determine the vegetation coverage index according to the vegetation coverage degree in the preset region;

[0063] In this step, the Vegetation Cover Index represents the degree of vegetation coverage in the area, specifically expressed as the proportion of the areas of forest land, grassland, and arable land in the area to the total area of the region. The calculation method of the Vegetation Cover Index is as follows:

[0064] I zf = C zf ×(0.38 × A li + 0.34 × A ca + 0.19 × A ge ) / A

[0065] where I zf is the Vegetation Cover Index; A li is the area of forest land, m 2 ; A ca is the area of grassland, m 2 ; A ge is the area of arable land, m 2 ; C zf is the normalization coefficient of the Vegetation Cover Index, with a reference value of 355.24.

[0066] In this step, assume that the area of forest land is 220 m 2 ; the area of grassland is 237 m 2 ; the area of arable land is 0. Therefore, the Vegetation Cover Index I zf = 33.08.

[0067] Step 103: Determine the water source density index according to the abundance of water resources in the preset area;

[0068] In this step, the water source density index represents the abundance of water resources, specifically the proportion of the river length, water area, and water resource volume in the area to the area of the region. The calculation method of the water source density index is as follows:

[0069] I sh = (C riv × river length + C lak × water area (lakes, reservoirs, canals, and coastal waters) + C res × water resource volume) / 3·A

[0070] where I sh is the water source density index; C riv is the normalization coefficient of the river length, with a reference value of 84.37; C lak is the normalization coefficient of the water area, with a reference value of 591.79; C res is the normalization coefficient of the water resource volume, with a reference value of 86.39; both the river length and the water area only consider the scope that may be affected by pipeline leakage; the water resource volume is determined according to the annual average precipitation.

[0071] In this step, assume that the river length is 60 m, the water area of the wetland is 151 m 2 , and the average daily water resource volume is 5.63 m 3 . Therefore, the water source density index I sh = 17.94.

[0072] Step 104: Determine the pollution emission index according to the pollution pressure of the environment within the preset area;

[0073] In this step, the pollution emission index represents the pollution pressure of the environment within the area, that is, the pollution situation caused to the environment after the pipeline leaks, and can be represented by the oil leakage volume of the area. The calculation method of the pollution emission index is as follows:

[0074] I oi = C oi × oil leakage volume / annual precipitation of the area

[0075] Among them, I oi is the pollution emission index; C oi is the normalization coefficient of the oil product, and the reference value is 4.39.

[0076] Furthermore, the calculation method of the oil leakage volume is as follows:

[0077] The conveying medium of the oil pipeline generally exists in a liquid form. According to Bernoulli's equation, the leakage rate of the liquid can be obtained:

[0078] Among them, x is the leakage rate, kg / s; C d is the leakage coefficient of the leaked liquid, with a value of 0.61; A is the leakage hole area, m 2 ; ρ is the fluid density, kg / m 3 ; p is the pipeline internal pressure, Pa; p0 is the atmospheric pressure, Pa.

[0079] Therefore, the oil leakage volume = x × T, where T is the expected leakage time of the oil product, s.

[0080] In this step, it should be noted that when the pollution load index is greater than 100, then take 100.

[0081] In this step, assume that the leakage hole area is 0.02 m 2 , ρ is the fluid density of 830 kg / m 3 , the pipeline internal pressure is 3400000 Pa, the atmospheric pressure is 101300 Pa, and the leakage time is 1800 s. The obtained oil leakage volume = 1.62×10 6 kg. The annual precipitation of the area is 9.64×10 5 kg. Therefore, the pollution load index I oi = 7.38.

[0082] Step 105: Determine the impact index of the oil pipeline leakage on the natural environment according to the biological richness index, vegetation coverage index, water source density index, and pollution emission index;

[0083] In this step, the natural environment impact index reflects the overall state of the natural environment in the area after the pipeline leakage. The index system includes four sub - indices: the biological richness index, vegetation coverage index, water source density index, and pollution emission index. The four sub - indices respectively reflect the richness and poverty of organisms, the level of vegetation coverage, the abundance of water, and the pollutant pressure borne in the area. Therefore, the calculation formula for the natural environment impact index is as follows:

[0084] I = w1×I sf +w2×I zf +w3×I sh +w4×I oi

[0085] Where, I is the impact index of the oil pipeline leakage on the natural environment; I sf is the biological richness index; I zf is the vegetation coverage index; I sh is the water source density index; I oi is the pollution emission index; w1 is the weight of the biological richness index; w2 is the weight of the vegetation coverage index; w3 is the weight of the water source density index; w4 is the weight of the pollution emission index;

[0086] In this step, assume that the weight w1 of the biological richness index is taken as 0.20, the weight w2 of the vegetation coverage index is taken as 0.10, the weight w3 of the water source density index is taken as 0.30, and the weight w4 of the pollution emission index is taken as 0.40. Then, according to the biological richness index I sf , vegetation coverage index I zf , water source density index I sh , and pollution emission index I oi calculated in the above steps, the impact index I of the oil pipeline leakage on the natural environment can be calculated as I = 22.11.

[0087] Step 106: Determine the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment.

[0088] In this step, a table of the impact levels of the oil pipeline leakage on the natural environment can be established in advance. The corresponding relationship between each impact level and the range of each impact index is pre - stored in the impact level table. For example, according to the impact index of the oil pipeline leakage on the natural environment, the impact degree is divided into 5 levels, as shown in Table 1.

[0089] Table 1 Classification of the impact index levels of the oil pipeline leakage on the natural environment

[0090]

[0091] In this embodiment, the impact index I of the oil pipeline leakage on the natural environment is calculated to be 22.11, and its level can be determined as "B" level. The severity of the impact of the pipeline leakage on the natural environment is relatively low. Therefore, a lower-level emergency response plan can be activated for this leakage accident.

[0092] It can be seen that in this embodiment, an analysis model of the impact of oil pipeline leakage on the natural environment is established, the form of the impact on the natural environment is analyzed, the severity of the impact of oil pipeline leakage on the natural environment is determined, breaking through the barriers of the existing technology, which is conducive to realizing hierarchical emergency management.

[0093] As can be seen from the above technical solutions, the method for determining the impact level of oil pipeline leakage on the natural environment provided by the embodiment of the present invention starts from two aspects of the pipeline surrounding environment and the pipeline leakage situation, fully considering the richness and poverty of organisms, the height of vegetation coverage, the abundance of water sources, and the pollutant pressure borne in the area. According to the biological richness and poverty index, vegetation coverage index, water source density index, and pollution emission index, the impact index of oil pipeline leakage on the natural environment is determined. Then, based on the division principle of the index level, according to the impact index of oil pipeline leakage on the natural environment, the impact level of oil pipeline leakage on the natural environment is determined, thereby completing the analysis of the impact degree of pipeline leakage on the environment, and further providing technical support for the special emergency management of the pipeline.

[0094] Based on the content of the above embodiment, in this embodiment, the specific steps of determining the biological richness and poverty index according to the richness of organisms in the preset area include:

[0095] According to the richness of organisms in the preset area, the first relationship model is used to determine the biological richness and poverty index; among them, the first relationship model is:

[0096] I sf =C sf ×(0.35×A li +0.21×A ca +0.11×A ge +0.28×A sh +0.04×A ji +0.01×A we ) / A

[0097] where I sf is the biological richness and poverty index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; Ash is the area of water area wetland, m 2 ; A ji is the area of construction land, m 2 ; A we is the area of unused land, m 2 ; A is the area of the preset area, m 2 ; C sf is the normalization coefficient of the biological richness and poverty index.

[0098] In this embodiment, the biological richness and poverty index is represented by the quality of the biological living environment, which specifically includes forest land, grassland, water area wetland, cultivated land, construction land and unused land. In this embodiment, the biological richness and poverty index that can represent the quality of the biological living environment is calculated according to the areas of forest land, grassland, water area wetland, cultivated land, construction land and unused land in the preset area, so that the analysis result of the environmental impact of pipeline leakage can be combined with the biological richness and poverty index, and further the analysis result of the environmental impact of pipeline leakage is more objective, reasonable and accurate.

[0099] In this embodiment, the normalization coefficient C of the biological richness and poverty index sf The reference value of can be taken as 511.26.

[0100] In this embodiment, it is assumed that an oil pipeline crossing a mountain valley leaks, and the surrounding forest land area is 220m 2 ; the grassland area is 237m 2 ; the cultivated land area is 0; the water area wetland area is 151m 2 ; the construction land area is 0; the unused land area is 1155m 2 ; the regional area is 1763m 2 . Therefore, the biological richness and poverty index I sf = 52.37.

[0101] Based on the content of the above embodiment, in this embodiment, the determining the vegetation coverage index according to the vegetation coverage degree in the preset area specifically includes:

[0102] According to the vegetation coverage degree in the preset area, the vegetation coverage index is determined by using the second relationship model; wherein, the second relationship model is:

[0103] I zf = C zf ×(0.38×A li + 0.34×A ca + 0.19×A ge ) / A

[0104] wherein, I zf is the vegetation coverage index; A li is the forest land area, m 2 ; Aca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; A is the area of the preset area, m 2 ; C zf is the normalization coefficient of the vegetation cover index.

[0105] In this embodiment, the vegetation cover index is the degree of vegetation coverage in the area, and specifically can be represented by the proportion of the areas of forest land, grassland and cultivated land in the area. The calculation method of the vegetation cover index is as follows:

[0106] I zf = C zf ×(0.38×A li + 0.34×A ca + 0.19×A ge ) / A

[0107] where, I zf is the vegetation cover index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; C zf is the normalization coefficient of the vegetation cover index, and the reference value is 355.24.

[0108] In this embodiment, it is assumed that the forest land area is 220 m 2 ; the grassland area is 237 m 2 ; the cultivated land area is 0, so the vegetation cover index I zf = 33.08.

[0109] In this embodiment, according to the forest land area, grassland area and cultivated land area, the vegetation cover index that can be used to represent the vegetation coverage in the area is determined, so that the environmental impact of pipeline leakage can be analyzed in combination with this vegetation cover index, and further the analysis result of the environmental impact of pipeline leakage is more objective, reasonable and accurate.

[0110] Based on the content of the above embodiment, in this embodiment, the determining the water source density index according to the abundance of water resources in the preset area specifically includes:

[0111] According to the abundance of water resources in the preset area, the third relationship model is used to determine the water source density index; where, the third relationship model is:

[0112] I sh = (C riv × river length + C lak×Water area (lakes, reservoirs, rivers and canals, and coastal waters) + C res ×Water resource volume) / 3 · A

[0113] Wherein, I sh is the water source density index; C riv is the normalization coefficient of the river length; C lak is the normalization coefficient of the water area; C res is the normalization coefficient of the water resource volume; both the river length and the water area only consider the range affected by pipeline leakage; the water resource volume is determined according to the annual average precipitation; A is the area of the preset region, m 2 .

[0114] In this embodiment, the water source density index represents the abundance of water resources, specifically the ratio of the river length, water area, and water resource volume in the region to the regional area. The calculation method of the water source density index is as follows:

[0115] I sh = (C riv ×River length + C lak ×Water area (lakes, reservoirs, rivers and canals, and coastal waters) + C res ×Water resource volume) / 3 · A

[0116] Wherein, I sh is the water source density index; C riv is the normalization coefficient of the river length, and the reference value is 84.37; C lak is the normalization coefficient of the water area, and the reference value is 591.79; C res is the normalization coefficient of the water resource volume, and the reference value is 86.39; both the river length and the water area only consider the range that may be affected by pipeline leakage; the water resource volume is determined according to the annual average precipitation.

[0117] In this embodiment, assuming the river length is 60 m, the water area of the wetland is 151 m 2 , and the water resource volume per day on average is 5.63 m 3 , so the water source density index I sh = 17.94.

[0118] In this embodiment, the water source density index that can be used to represent the abundance of water resources is determined according to the river length, water area, and water resource volume, so that the impact of pipeline leakage on the environment can be analyzed in combination with this water source density index, and further the analysis result of the impact of pipeline leakage on the environment is more objective, reasonable, and accurate.

[0119] Based on the content of the above embodiment, in this embodiment, the determining the pollution emission index according to the pollution pressure of the environment in the preset region specifically includes:

[0120] Determine the pollution emission index according to the pollution pressure of the environment within the preset area; wherein, the fourth relationship model is:

[0121] I oi = C oi × Oil spill volume / Annual regional precipitation

[0122] Wherein, I oi is the pollution emission index; C oi is the normalization coefficient of the oil product; the oil spill volume = x × T, where x is the leakage rate and T is the expected leakage time of the oil product; the leakage rate x is calculated through the fifth relationship model, and the fifth relationship model is:

[0123]

[0124] Wherein, x is the leakage rate, kg / s; C d is the leakage coefficient of the leaking liquid; A is the leakage hole area, m 2 ; ρ is the fluid density, kg / m 3 ; p is the internal pressure of the pipeline, Pa; p0 is the atmospheric pressure, Pa.

[0125] In this embodiment, the pollution emission index represents the pollution pressure of the environment within the area, that is, the pollution situation caused to the environment after the pipeline leaks, and can be represented by the oil spill volume of the area. The calculation method of the pollution emission index is as follows:

[0126] I oi = C oi × Oil spill volume / Annual regional precipitation

[0127] Wherein, I oi is the pollution emission index; C oi is the normalization coefficient of the oil product, and the reference value is 4.39.

[0128] Furthermore, the calculation method of the oil spill volume is as follows:

[0129] The conveying medium of the oil pipeline generally exists in a liquid state. According to Bernoulli's equation, the leakage rate of the liquid can be obtained:

[0130] Wherein, x is the leakage rate, kg / s; C d is the leakage coefficient of the leaking liquid, with a value of 0.61; A is the leakage hole area, m 2 ; ρ is the fluid density, kg / m 3 ; p is the internal pressure of the pipeline, Pa; p0 is the atmospheric pressure, Pa.

[0131] Therefore, the oil spill volume = x × T, where T is the expected leakage time of the oil product, s.

[0132] In this embodiment, it should be noted that when the pollution load index is greater than 100, 100 is taken.

[0133] In this embodiment, it is assumed that the leakage hole area is 0.02 m 2 , the ρ fluid density is 830 kg / m 3 , the pipeline internal pressure is 3400000 Pa, the atmospheric pressure is 101300 Pa, and the leakage time is 1800 s. The oil leakage amount is obtained as 1.62×10 6 kg. The annual precipitation in the region is 9.64×10 5 kg. Therefore, the pollution load index I oi = 7.38.

[0134] In this embodiment, the pollution emission index that can be used to represent the pollution pressure of the environment within the region is determined based on the oil leakage amount and the annual precipitation in the region, so that the impact of pipeline leakage on the environment can be analyzed in combination with this pollution emission index, and further, the analysis result of the impact of pipeline leakage on the environment is made more comprehensive, reasonable, and accurate.

[0135] Based on the content of the above embodiment, in this embodiment, determining the impact index of oil pipeline leakage on the natural environment according to the biological richness-poverty index, vegetation coverage index, water source density index, and pollution emission index specifically includes:

[0136] According to the biological richness-poverty index, vegetation coverage index, water source density index, and pollution emission index, the sixth relationship model is used to determine the impact index of oil pipeline leakage on the natural environment, where the sixth relationship model includes:

[0137] I = w1×I sf + w2×I zf + w3×I sh + w4×I oi

[0138] where I is the impact index of oil pipeline leakage on the natural environment; I sf is the biological richness-poverty index; I zf is the vegetation coverage index; I sh is the water source density index; I oi is the pollution emission index; w1 is the weight of the biological richness-poverty index; w2 is the weight of the vegetation coverage index; w3 is the weight of the water source density index; w4 is the weight of the pollution emission index.

[0139] In this embodiment, the impact index of oil pipeline leakage on the natural environment is used to reflect the overall state of the natural environment in the area after the pipeline leaks. In this embodiment, based on four index indicators, namely, the biological richness index, the vegetation coverage index, the water source density index, and the pollution emission index, which are respectively used to reflect the richness or poverty of organisms, the level of vegetation coverage, the abundance of water, and the pollutant pressure borne in the area, the impact index of oil pipeline leakage on the natural environment is calculated, so as to accurately reflect the overall state of the natural environment in the area after the pipeline leaks, that is, it can accurately reflect the degree of impact on the natural environment in the area after the pipeline leaks.

[0140] In this embodiment, assuming that the weight w1 of the biological richness index is 0.20, the weight w2 of the vegetation coverage index is 0.10, the weight w3 of the water source density index is 0.30, and the weight w4 of the pollution emission index is 0.40, then according to the above steps, the calculated biological richness index I sf , vegetation coverage index I zf , water source density index I sh and pollution emission index I oi can be used to calculate the impact index I of oil pipeline leakage on the natural environment, and I = 22.11.

[0141] Based on the content of the above embodiment, in this embodiment, the determination of the impact level of oil pipeline leakage on the natural environment according to the impact index of oil pipeline leakage on the natural environment specifically includes:

[0142] Determine the impact index range interval in which the natural environment impact index is located according to the impact index of oil pipeline leakage on the natural environment;

[0143] Query the pre-established impact level table according to the impact index range interval to obtain the impact level of oil pipeline leakage on the natural environment;

[0144] Among them, the corresponding relationship between each impact level and each impact index range interval is pre-stored in the impact level table.

[0145] In this embodiment, an impact level table of oil pipeline leakage on the natural environment can be pre-established, and the corresponding relationship between each impact level and each impact index range interval is pre-stored in the impact level table. For example, according to the impact index of oil pipeline leakage on the natural environment, the impact degree is divided into 5 levels, as shown in Table 1 above. In this embodiment, the calculated impact index I of oil pipeline leakage on the natural environment is I = 22.11, and its level can be determined as "B" level. The severity of the impact of pipeline leakage on the natural environment is relatively low, so a lower-level emergency plan can be activated for this leakage accident.

[0146] It can be seen that in this embodiment, an analysis model for the impact of oil pipeline leakage on the natural environment is established to analyze the forms of the impact on the natural environment and determine the severity of the impact of oil pipeline leakage on the natural environment, breaking through the barriers of the existing technology and facilitating the implementation of hierarchical emergency management.

[0147] As can be seen from the above technical solution, in this embodiment, the biological richness-poverty index, vegetation coverage index, water source density index, and pollution emission index are combined to calculate the natural environment impact index, and a grading standard for the natural environment impact index is formulated to analyze the impact degree of oil pipeline leakage on the natural environment. It can be seen that in this embodiment, starting from the four sub-indices of the biological richness-poverty index, vegetation coverage index, water source density index, and pollution emission index, the natural environment impact index is calculated, and based on the principle of index level division, the impact degree of pipeline leakage on the environment is analyzed.

[0148] From two perspectives of the pipeline surrounding environment and the pipeline leakage situation, this embodiment fully considers various aspects such as the richness and poverty of organisms in the region, the height of vegetation coverage, the abundance of water sources, and the pollutant pressure borne, providing a configurable calculation model library for the analysis. By grading, the severity of the impact of pipeline leakage on the environment is determined, which can provide technical support for the special emergency management of pipelines and avoid waste of resources or further expansion of accidents.

[0149] Figure 2 The structural schematic diagram of the device for determining the impact level of oil pipeline leakage on the natural environment provided by the embodiment of the present invention is shown. As Figure 2 shown, the device for determining the impact level of oil pipeline leakage on the natural environment provided by this embodiment includes: a first determination module 21, a second determination module 22, a third determination module 23, a fourth determination module 24, a fifth determination module 25, and a sixth determination module 26, where:

[0150] The first determination module 21 is used to determine the biological richness-poverty index according to the richness of organisms in the preset area; wherein, the preset area is the impact area of the oil pipeline leakage.

[0151] The second determination module 22 is used to determine the vegetation coverage index according to the coverage degree of vegetation in the preset area.

[0152] The third determination module 23 is used to determine the water source density index according to the abundance of water resources in the preset area.

[0153] The fourth determination module 24 is used to determine the pollution emission index according to the pollution pressure of the environment in the preset area.

[0154] The fifth determination module 25 is used to determine the impact index of the oil pipeline leakage on the natural environment according to the biological richness-poverty index, vegetation coverage index, water source density index, and pollution emission index.

[0155] A sixth determination module 26, configured to determine the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment.

[0156] Since the device for determining the impact level of the oil pipeline leakage on the natural environment provided by the embodiment of the present invention can be used to execute the method for determining the impact level of the oil pipeline leakage on the natural environment described in the above embodiment, and its working principle and beneficial effects are similar, so it will not be elaborated here, and the specific content can refer to the introduction of the above embodiment.

[0157] In this embodiment, it should be noted that each module in the device of the embodiment of the present invention can be integrated into one body or deployed separately. The above modules can be combined into one module or further split into multiple sub-modules.

[0158] Based on the same inventive concept, another embodiment of the present invention provides an electronic device, see Figure 3 , the electronic device specifically includes the following: a processor 301, a memory 302, a communication interface 303, and a communication bus 304;

[0159] Wherein, the processor 301, the memory 302, and the communication interface 303 complete mutual communication through the communication bus 304;

[0160] The processor 301 is configured to call a computer program in the memory 302. When the processor executes the computer program, all steps of the above method for determining the impact level of the oil pipeline leakage on the natural environment are implemented. For example, when the processor executes the computer program, the following process is implemented: determining a biological richness index according to the richness of organisms in a preset area; wherein, the preset area is the impact area of the oil pipeline leakage; determining a vegetation coverage index according to the coverage degree of vegetation in the preset area; determining a water source density index according to the richness of water resources in the preset area; determining a pollution emission index according to the pollution pressure of the environment in the preset area; determining an impact index of the oil pipeline leakage on the natural environment according to the biological richness index, the vegetation coverage index, the water source density index, and the pollution emission index; and determining the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment.

[0161] It can be understood that the refined functions and extended functions that the computer program can execute can refer to the description of the above embodiment.

[0162] Based on the same inventive concept, another embodiment of the present invention provides a non-transitory computer-readable storage medium. A computer program is stored on the non-transitory computer-readable storage medium. When the computer program is executed by a processor, all steps of the method for determining the impact level of oil pipeline leakage on the natural environment are implemented. For example, when the processor executes the computer program, the following process is implemented: Determine the biological richness index according to the richness of organisms in a preset area, where the preset area is the impact area of the oil pipeline leakage; Determine the vegetation coverage index according to the coverage of vegetation in the preset area; Determine the water source density index according to the richness of water resources in the preset area; Determine the pollution emission index according to the pollution pressure on the environment in the preset area; Determine the impact index of the oil pipeline leakage on the natural environment according to the biological richness index, the vegetation coverage index, the water source density index, and the pollution emission index; Determine the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment.

[0163] It can be understood that the refined functions and extended functions that the computer program can execute can refer to the description of the above embodiments.

[0164] In addition, when the logical instructions in the above-mentioned memory are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or part of this technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0165] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present invention. A person of ordinary skill in the art can understand and implement it without creative labor.

[0166] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solution, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the method for determining the impact level of oil pipeline leakage on the natural environment described in each embodiment or some parts of the embodiments.

[0167] In addition, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0168] In addition, in the present invention, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0169] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for determining the impact level of an oil pipeline leak on the natural environment, characterized in that, Including: Determine the biological richness-poverty index according to the richness of organisms in the preset area; wherein, the preset area is the affected area of the oil pipeline leakage; Determine the vegetation coverage index according to the vegetation coverage in the preset area; Determine the water source density index according to the richness of water resources in the preset area; Determine the pollution emission index according to the pollution pressure on the environment in the preset area; Determine the impact index of the oil pipeline leakage on the natural environment according to the biological richness-poverty index, the vegetation coverage index, the water source density index and the pollution emission index; Determine the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment; The specific process of determining the biological richness-poverty index according to the richness of organisms in the preset area includes: Determine the biological richness-poverty index by using the first relationship model according to the richness of organisms in the preset area; wherein, the first relationship model is: I sf = C sf × (0.35 × A li + 0.21 × A ca + 0.11 × A ge + 0.28 × A sh + 0.04 × A ji + 0.01×A we ) / A Among them, I sf is the biological richness index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; A sh is the water area wetland area, m 2 ; A ji is the construction land area, m 2 ; A we is the unused land area, m 2 ; A is the area of the preset area, m 2 ; C sf is the normalization coefficient of the biological richness index; The specific process of determining the vegetation coverage index according to the vegetation coverage in the preset area includes: Determine the vegetation coverage index by using the second relationship model according to the vegetation coverage in the preset area; wherein, the second relationship model is: I zf = C zf × (0.38 × A li + 0.34 × A ca + 0.19 × A ge ) / A Among them, I zf is the vegetation coverage index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; A is the area of the preset area, m 2 ; C zf is the normalization coefficient of the vegetation coverage index; The specific process of determining the water source density index according to the richness of water resources in the preset area includes: Determine the water source density index by using the third relationship model according to the richness of water resources in the preset area; wherein, the third relationship model is: I sh = (C riv × river length + C lak × water area + C res × water resource volume) / 3 · A Among them, I sh is the water source density index; C riv is the normalization coefficient of the river length; C lak is the normalization coefficient of the water area; C res is the normalization coefficient of the water resource volume; both the river length and the water area only consider the range affected by pipeline leakage; the water resource volume is determined according to the annual average precipitation; A is the area of the preset area, m 2 ; The specific process of determining the pollution emission index according to the pollution pressure on the environment in the preset area includes: Determine the pollution emission index by using the fourth relationship model according to the pollution pressure on the environment in the preset area; wherein, the fourth relationship model is: I oi = C oi × Oil spill volume / Annual precipitation in the area Among them, I oi is the pollution emission index; C oi is the normalization coefficient of the oil product; the oil product leakage amount = x × T, where x is the leakage rate and T is the expected leakage time of the oil product; the leakage rate x is calculated through the fifth relationship model, and the fifth relationship model is: where x is the leakage rate, kg / s; C d is the leakage coefficient of the leaking liquid; A is the leakage hole area, m 2 ; ρ is the fluid density, kg / m 3 ; p is the internal pressure of the pipeline, Pa; p0 is the atmospheric pressure, Pa; The specific process of determining the impact index of the oil pipeline leakage on the natural environment according to the biological richness-poverty index, the vegetation coverage index, the water source density index and the pollution emission index includes: Determine the impact index of the oil pipeline leakage on the natural environment by using the sixth relationship model according to the biological richness-poverty index, the vegetation coverage index, the water source density index and the pollution emission index, wherein the sixth relationship model includes: I = w1 × I sf + w2 × I zf + w3 × I sh + w4 × I oi Among them, I is the impact index of oil pipeline leakage on the natural environment; I sf is the biological richness and poverty index; I zf is the vegetation coverage index; I sh is the water source density index; I oi is the pollution emission index; w1 is the weight of the biological richness and poverty index; w2 is the weight of the vegetation coverage index; w3 is the weight of the water source density index; w4 is the weight of the pollution emission index; The specific process of determining the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment includes: Determine the range interval of the impact index where the natural environment impact index is located according to the impact index of the oil pipeline leakage on the natural environment; Query the pre-established impact level table according to the impact index range interval to obtain the impact level of the oil pipeline leakage on the natural environment; Wherein, the corresponding relationship between each impact level and each impact index range interval is pre-stored in the impact level table.

2. An apparatus for determining the impact level of an oil pipeline leak on the natural environment, characterized in that, Including: The first determination module is used to determine the biological richness-poverty index according to the richness of organisms in the preset area; wherein, the preset area is the affected area of the oil pipeline leakage; The second determination module is used to determine the vegetation coverage index according to the vegetation coverage in the preset area; The third determination module is used to determine the water source density index according to the richness of water resources in the preset area; The fourth determination module is used to determine the pollution emission index according to the pollution pressure on the environment in the preset area; A fifth determination module, configured to determine an impact index of the oil pipeline leakage on the natural environment according to a biological richness index, a vegetation coverage index, a water source density index, and a pollution emission index; A sixth determination module, configured to determine an impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment; The determination of the biological richness index according to the richness of organisms in the preset area specifically includes: Determining the biological richness index according to the richness of organisms in the preset area by using a first relationship model; wherein, the first relationship model is: I sf = C sf × (0.35 × A li + 0.21 × A ca + 0.11 × A ge + 0.28 × A sh + 0.04 × A ji + 0.01×A we ) / A Among them, I sf is the biological richness index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; A sh is the water area wetland area, m 2 ; A ji is the construction land area, m 2 ; A we is the unused land area, m 2 ; A is the area of the preset area, m 2 ; C sf is the normalization coefficient of the biological richness index; The determination of the vegetation coverage index according to the coverage degree of vegetation in the preset area specifically includes: Determining the vegetation coverage index according to the coverage degree of vegetation in the preset area by using a second relationship model; wherein, the second relationship model is: I zf = C zf ×(0.38 × A li + 0.34 × A ca + 0.19 × A ge ) / A Among them, I zf is the vegetation coverage index; A li is the forest land area, m 2 ; A ca is the grassland area, m 2 ; A ge is the cultivated land area, m 2 ; A is the area of the preset area, m 2 ; C zf is the normalization coefficient of the vegetation coverage index; The determination of the water source density index according to the richness of water resources in the preset area specifically includes: Determining the water source density index according to the richness of water resources in the preset area by using a third relationship model; wherein, the third relationship model is: I sh = (C riv × River length + C lak × Water area + C res × Water resource volume) / 3 · A Among them, I sh is the water source density index; C riv is the normalization coefficient of the river length; C lak is the normalization coefficient of the water area; C res is the normalization coefficient of the water resource quantity; both the river length and the water area only consider the range affected by pipeline leakage; the water resource quantity is determined according to the annual average precipitation; A is the area of the preset area, m 2 ; The determination of the pollution emission index according to the pollution pressure on the environment in the preset area specifically includes: Determining the pollution emission index according to the pollution pressure on the environment in the preset area by using a fourth relationship model; wherein, the fourth relationship model is: I oi = C oi × Oil spill volume / Annual precipitation in the area Among them, I oi is the pollution emission index; C oi is the normalization coefficient of the oil product; the oil product leakage amount = x × T, where x is the leakage rate and T is the expected leakage time of the oil product; the leakage rate x is calculated through the fifth relationship model, and the fifth relationship model is: where x is the leakage rate, kg / s; C d is the leakage coefficient of the leaking liquid; A is the leakage hole area, m 2 ; ρ is the fluid density, kg / m 3 ; p is the internal pressure of the pipeline, Pa; p0 is the atmospheric pressure, Pa; The determination of the impact index of the oil pipeline leakage on the natural environment according to the biological richness index, the vegetation coverage index, the water source density index, and the pollution emission index specifically includes: Determining the impact index of the oil pipeline leakage on the natural environment according to the biological richness index, the vegetation coverage index, the water source density index, and the pollution emission index by using a sixth relationship model, wherein the sixth relationship model includes: I = w1 × I sf + w2 × I zf + w3 × I sh + w4 × I oi Among them, I is the impact index of oil pipeline leakage on the natural environment; I sf is the biological richness and poverty index; I zf is the vegetation coverage index; I sh is the water source density index; I oi is the pollution emission index; w1 is the weight of the biological richness and poverty index; w2 is the weight of the vegetation coverage index; w3 is the weight of the water source density index; w4 is the weight of the pollution emission index; The determination of the impact level of the oil pipeline leakage on the natural environment according to the impact index of the oil pipeline leakage on the natural environment specifically includes: Determining the impact index range interval where the natural environment impact index is located according to the impact index of the oil pipeline leakage on the natural environment; Querying a pre-established impact level table according to the impact index range interval to obtain the impact level of the oil pipeline leakage on the natural environment; Wherein, the impact level table prestores the corresponding relationship between each impact level and each impact index range interval.

3. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method for determining the impact level of the oil pipeline leakage on the natural environment as described in claim 1.

4. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the method for determining the impact level of the oil pipeline leakage on the natural environment as described in claim 1.

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