CN105221838B - A kind of defeated buried Oil/Gas Pipe net route choosing optimization method of length of defence geomagnetic storm disaster - Google Patents

A kind of defeated buried Oil/Gas Pipe net route choosing optimization method of length of defence geomagnetic storm disaster Download PDF

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Publication number
CN105221838B
CN105221838B CN201510579937.3A CN201510579937A CN105221838B CN 105221838 B CN105221838 B CN 105221838B CN 201510579937 A CN201510579937 A CN 201510579937A CN 105221838 B CN105221838 B CN 105221838B
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China
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pipeline
geomagnetic storm
oil
point
storm disaster
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CN201510579937.3A
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Chinese (zh)
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CN105221838A (en
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梁志珊
夏鹏程
张举丘
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中国石油大学(北京)
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/024Laying or reclaiming pipes on land, e.g. above the ground
    • F16L1/028Laying or reclaiming pipes on land, e.g. above the ground in the ground

Abstract

The present invention relates to a kind of defeated buried Oil/Gas Pipe net route choosing optimization method of length of defence geomagnetic storm disaster, this method includes:Step one, using available data and according to current standard progress route choosing;Step 2, the geomagnetic storm disaster catastrophe point of each alternative circuit is found out using pipe network geomagnetic storm disaster catastrophe point scanning search method, carries out line optimization;Step 3, outlet line selection optimum results.The defeated buried Oil/Gas Pipe net route choosing optimization method of length of the defence geomagnetic storm disaster of the present invention; by optimizing to buried Oil/Gas Pipe net route choosing over long distances; pipeline geomagnetic storm disaster catastrophe point can be reduced; reduce pipeline PSP " dovetail peak "; so as to reduce the quantity of pipeline cathode protection device; pipeline anticorrosion cost is greatly saved, the ability that buried oil-gas pipeline defends geomagnetic storm disaster, extension pipeline and relevant device life-span is improved.

Description

A kind of defeated buried Oil/Gas Pipe net route choosing optimization method of length of defence geomagnetic storm disaster
Technical field
The present invention relates to buried Oil/Gas Pipe netting twine road design field, and in particular to a kind of length of defence geomagnetic storm disaster Defeated buried Oil/Gas Pipe net route choosing optimization method.
Background technology
Long range oil and gas pipeline has gas transmission station and oil transportation station every a segment distance, is imported and exported in gas transmission station and oil transportation station Pipeline is electrically isolated provided with insulating flange, in order to power with it is easy to maintenance, pipeline cathode protection device be located at gas transmission station and Oil transportation station, and two segment pipes that gas transmission station and oil transportation station are imported and exported on the outside of insulating flange are connected together with plain conductor, whole piece The gas transmission station and oil transportation station of pipeline all become what is linked together with wire after all so doing in addition to gas transmission station and oil transportation station Overall, pipeline is integrally electric continuity, so, and the cathode protection device set in each gas transmission station and oil transportation station can protect defeated Two segment pipes of both sides outside gas station and oil transportation station, realize that protection domain is maximized.Above-mentioned this whole piece pipeline is electrically continuous pipe The advantage of pipe protection collocation method is:Designed potentiostat is simple, usage quantity is few and is easy to configuration.But, so It has been ignored as covering influence of the interference of electromagnetic field of overall importance of whole piece pipeline to pipeline, the ground that for example space weather triggers Magnetic storm is disturbed and the high-voltage alternating DC transmission line that is set up with pipeline with corridor is disturbed etc., causes geomagnetic induction current GIC (Geomagnetically Induced Current) and pipe to soil potential PSP (Pipe to Soil Potential) present " negative Face " cumulative effect.
There is following problem in prior art:
(1) during current long-distance oil & gas pipeline engineering design route choosing, do not account for defending geomagnetic storm disaster, work as geomagnetic storm During generation, the place undergone mutation in pipeline parameter and pipe network ambient parameter etc. can cause pipeline PSP to be mutated, and " dovetail is presented Peak " shape, traditional potentiostat can not play the effect of being effectively protected to PSP " dovetail peak " phenomenon, or even can have the opposite effect.
(2) long " negative " cumulative effect of electrically continuous pipeline
When space weather has magnetic storm generation or when having external alternating current-direct current stray electrical current, because the accumulation of whole piece pipeline is imitated Should, interference pipe to soil potential can the cumulative rises with the increase of duct length.The stray electrical current interference signal of whole piece pipeline is mutual It is superimposed " coupling ", makes the interference pipe to soil potential of one section of electrically continuous pipeline in two ends opposite polarity, amplitude maximum and close to equal, and Pipe to soil potential is relatively low in the middle of pipeline.
(3) flowing through high current in the pipeline neighbouring when high-voltage dc transmission electric monopole the earth is run causes potentiostat failure Even burn, the pipeline accident common reporter such as insulating joint over-voltage breakdown, Equipotential connector burn.And caused by geomagnetic storm GIC is similar with direct current transportation electric current, therefore GIC is excessive may also cause the device damages such as potentiostat.
(4) prior art potentiostat control tool has a serious limitation
Prior art potentiostat, which is disturbed any stray electrical current, does not all have rejection ability.That is, prior art The starting point of potentiostat design is to suppress internal stray current interference, is not to suppress outside stray electrical current interference.Therefore, it is existing Technology potentiostat output single-pole output tool has a serious limitation and disadvantage.It was verified that the unipolarity of potentiostat is defeated The disadvantage gone out, in addition the collocation method of prior art potentiostat cause electrically continuous pipeline long, usually make potentiostat not only The effect of being effectively protected is not had to pipeline, deterioration effect can be also played on the contrary.
In summary, during current long-distance oil & gas pipeline engineering design route choosing, do not account for defending geomagnetic storm disaster.It is existing Have in the potentiostat collocation method of buried long oil and gas pipeline, pipeline is " electrically continuous " property.However, when pipeline is long, Geomagnetic storm interference of overall importance causes pipe to soil potential can cumulative rises, the stray electrical current of whole piece pipeline with the increase of duct length Interference signal is overlapped mutually " coupling ", so that original potentiostat loses the resistant function disturbed external stray current. Moreover, existing potentiostat is unipolar output, it can not convert output polarity adaptively to eliminate external direct current and exchange Earth magnetism stray electrical current interference caused by stray electrical current interference and space weather.
The content of the invention
For technical problem present in prior art, the invention provides a kind of length for defending geomagnetic storm disaster is defeated buried Oil/Gas Pipe net route choosing optimization method, using this method:First, pipeline geomagnetic storm disaster catastrophe point can be reduced, pipe is reduced Road PSP " dovetail peak ", so as to reduce the quantity of pipeline cathode protection device;Second, reduction pipeline geomagnetic storm disaster catastrophe point PSP Mutation content, so as to greatly save pipeline anticorrosion cost, improve the ability that buried oil-gas pipeline defends geomagnetic storm disaster, Extend pipeline and relevant device life-span.
To achieve these goals, the present invention is adopted the following technical scheme that.
A kind of defeated buried Oil/Gas Pipe net route choosing optimization method of length of defence geomagnetic storm disaster, this method includes following step Suddenly:
Step one, using available data and according to current standard progress route choosing;
Step 2, the geomagnetic storm disaster of each alternative circuit is found out using pipe network geomagnetic storm disaster catastrophe point scanning search method Catastrophe point, carries out line optimization;
Step 3, outlet line selection optimum results.
Preferably, in the step one, the utilization available data is using national geography environmental data, engineering Geologic information data, urban transportation facility data.
In any of the above-described technical scheme preferably, it is described to include foundation according to current standard in the step one National current standard《GB50251-2003 code for design of gas transmission pipeline engineerings》With《GB50253-2003 Oil Transportation Pipeline Engineerings are designed Specification》.
In any of the above-described technical scheme preferably, in the step one, national geography environmental data, engineering are utilized Geologic information data, urban transportation facility data, and include according to current standard according to national current standard《GB50251-2003 Code for design of gas transmission pipeline engineering》With《GB50253-2003 Oil Transportation Pipeline Engineering design specifications》Gas pipeline circuit is selected Select, selection is required to include:
(1) line alignment is according to landform, engineering geology, along the line air inlet, the geographical position of supply point and communications and transportation, dynamic Power condition, is determined after contrast of multiple-schemes;
(2) circuit avoids perennial industrial crops region and important farmland capital construction facility;
(3) big-and-middle-sized river wears (across) and gets over engineering and gas transmission station, the selection coincidence circuit common trend of oil transportation station location, local Trend wears (across) and gets over engineering and gas transmission station, the position of oil transportation station are adjusted according to large and medium-sized;
(4) circuit avoids important military installations, inflammable and explosive warehouse, state key historic reservation;
(5) circuit avoids town planning area, airport, railway station, sea (river) port harbour, Nature Reserve, When subject to conditions, pipeline need in above-mentioned zone by when, authorities must be obtained and agree to and take safety precautions;
(6) in addition to tunnel except pipeline accommodation road, bridge, circuit forbids the tunnel, bridge, railway by railway or highway Marshalling yard, Large passenger station and electric substation;
In any of the above-described technical scheme preferably, in the step one, national geography environmental data, engineering are utilized Geologic information data, urban transportation facility data, and include according to current standard according to national current standard《GB50251-2003 Code for design of gas transmission pipeline engineering》With《GB50253-2003 Oil Transportation Pipeline Engineering design specifications》Oil pipeline is selected Select, selection is required to include:
(1) according to the purpose of the engineering construction and market needs, city, industrial and mining enterprises, traffic, electric power, water with reference to along Present situation and planning that profit is built, and the landform in area, landforms, geology, the hydrology, meteorology, the natural conditions of earthquake on the way, in battalion On the premise of transporting safety and convenient construction, by comprehensive analysis and technology and economy comparison, circuit common trend is determined;
(2) coincidence circuit common trend is answered in intermediate station and large and medium-sized Crossing Engineering position, but necessary according to its actual conditions When deviateing common trend, the trend of local line can adjust;
(3) pipeline must not pass through municipal water source region, factory, airport, railway station, sea (river) port harbour, military installations, state Major historical and cultural sites under state protection and Nature Reserve of family, when oil pipeline it is subject to conditions must by when, should take must The safeguard measure wanted simultaneously is ratified through national departments concerned;
(4) pipeline should avoid landslide, avalanche, depression, the harmful engineering ground area of mud-rock flow, mineral resources area, serious danger And the earthquake territory of pipe safety, when it is subject to conditions must by when, safeguard procedures should be taken and correct position is selected, reduced logical Cross distance;
(5) Buried Oil Pipelines should meet regulation with the minimum spacing of ground buildings or structures:
(6) be laid in ground oil pipeline with the minimum range of buildings or structures, should be article " buried defeated by above-mentioned (5) Oil-piping should meet regulation with the minimum spacing of ground buildings or structures " distance of defined increases by 1 times;
(7) when Buried Oil Pipelines and overhead transmission line parallel lay-up, its distance should meet national current standard 《GB50061 66kV and following overhead power line design specification》And national current standard《DL/T5092 110~500kV framves Empty Design Transmission Line technical regulation》Regulation;Buried liquid liquefied petroleum gas pipeline, its distance is not less than in above-mentioned standard Regulation, and not less than 10m;
(8) minimum range of Buried Oil Pipelines and the buried pipeline parallel lay-up of buried communication cable, should meet country Current standard《SY0007 steel pipes and Corrosion of Tanks control engineering design specification》Regulation;
(9) Buried Oil Pipelines with other purposes pipeline laying in one ditch, and using joint cathodic protection pipeline between Distance, according to determining the need for construction and maintenance, its minimum clear distance is not less than 0.5m;
(10) when pipeline is with optical cable laying in one ditch, its minimum clear distance (clear distance of two cross section perpendiculars projection) is not less than 0.3m.
In any of the above-described technical scheme preferably, it is described to minimum of the Buried Oil Pipelines with ground buildings or structures The regulation of spacing is specifically included:
1. crude oil, C5And C5The distance of above processed oil pipeline and urban settlement or the independent house that the crowd is dense is not Less than 15m;
2. crude oil, C5And C5Above processed oil pipeline is built with airport, sea (river) port harbour, large and middle reservoirs and water conservancy project (structure) builds thing, the distance of factory is not less than 20m;
3. crude oil, liquefied petroleum gas, C5And C5When above processed oil pipeline is with highway, a Class II highway parallel lay-up, Its pipeline center is not less than 5m away from highway land range boundary not less than 10m, three-level and to get down the highway;
4. crude oil, C5And C5When above processed oil pipeline is with railway parallel lay-up, pipeline should be laid in apart from railway land model Beyond surrounding edge line 3m;
5. when liquid liquefied petroleum gas pipeline number parallel with railway is set, pipe centerline and state-owned railroads main line, branch line are (single Line) the distance between center line is respectively not less than 25m, not less than 10m;
6. crude oil, C5And C5The same ordnance factory of above processed oil pipeline, military installations, inflammable and explosive warehouse, state key historical relic The minimum range of unit is protected, should be resolved through consultation with relevant department, but the distance of liquid liquefied petroleum gas pipeline and above-mentioned facility Not less than 200m;
7. the distance of liquid liquefied petroleum gas pipeline and urban settlement, public building is not less than 75m.
In any of the above-described technical scheme preferably, in the step one, the distance:For urban settlement, Counted by the exterior wall of edge building;For single factory, airport, harbour, harbour, warehouse, by the area city boundary line delimited Count;For highway land scope, highway embankment side slope pin adds 1m beyond berm and gutter outward flange, or cutting slope top to intercept water 1m beyond ditch, Po Ding (if do not set intercepting ditch) outward flange.
In any of the above-described technical scheme preferably, in the step one, when situation is special or is limited by orographic condition When processed, after the adopt an effective measure adjacent buildings or structures of guarantee and pipe safety, it is allowed to reduce to Buried Oil Pipelines with ground Defined the of the minimum spacing of face buildings or structures 1.~3. distance as defined in money, but not less than 8m (three-levels and to get down the highway It is not preferably less than 5m);To in the landform particular difficulty location local pipeline section parallel with highway, after reinforcement safeguard measure is taken, It can be embedded within the highway land scope beyond road shoulder sideline.
In any of the above-described technical scheme preferably, in the step 2, pipe network geomagnetic storm disaster catastrophe point is utilized Scanning search method finds out the geomagnetic storm disaster catastrophe point of each alternative circuit, comprises the following steps:
(1) mechanism model that pipe network is influenceed by geomagnetic storm is set up;
(2) pipeline parameter database is set up;
(3) pipe network ambient parameter data storehouse is set up;
(4) N kind geomagnetic storm pattern databases are set up;
(5) geomagnetic storm disaster mutation dot pattern is defined;
(6) computer tube webmaster ground potential DPSP is distributed;
(7) search for catastrophe point and judge whether also other geomagnetic storm patterns;
(8) the identical mutation point for the various geomagnetic storm patterns that disappear;
(9) geomagnetic storm disaster catastrophe point evaluation index is defined.
In any of the above-described technical scheme preferably, described to set up pipeline parameter database, its pipeline parameter includes pipe Road inherent parameters, pipeline appendage parameter, pipeline inherent parameters include resistance per unit length, structure and material composition property, Pipeline appendage parameter includes liquid in unit length admittance, structure and property, inside and outside coating composition and pipeline.
In any of the above-described technical scheme preferably, it is described to set up pipe network ambient parameter data storehouse, its pipe network environment ginseng Number includes pipeline space factor, pipeline air half space factor, pipeline soil half space factor, pipeline coordinate system component variation rate The factor of factor, pipeline by Electromagnetic Sources distribution influence;Pipeline space factor includes:Constitute whole space air half space and Soil half space, is related to the problem of built on stilts laying of pipeline and buried laying;Pipeline air half space factor includes:Air themperature, Humidity, the concentration of composition of air, high mountain, river, low-temperature receiver, thermal source, ground cleave and terrain parameter;Pipeline soil half space factor bag Include:Ground resistivity, soil acid-base salt, soil ph, soil ph, the parameter of chemical composition of soil;Pipeline coordinate It is that component variation rate factor includes:Rectangular coordinate system, spherical coordinate system, coordinate system is leant on component variation rate, be related to pipeline turning, pipe Road branch and the parameter of height above sea level;Pipeline is included by the factor of Electromagnetic Sources distribution influence:D.C. high voltage transmission, high-voltage alternating Transmission of electricity, electric railway, geomagnetic storm, nuclear blast, thunder and lightning, earth's magnetic field, natural electric field and artificial electromagnetic.
In any of the above-described technical scheme preferably, described to define geomagnetic storm disaster mutation dot pattern, pattern includes:Pipe Road end points Catastrophe Model --- crescent moon peak, pipeline intermediate point Catastrophe Model --- dovetail peak;The pipe end point mutation mould Formula --- crescent moon peak:End points PSP monotone increasings or monotonic decreasing;If for a function f (x), x ∈ [a, b], in left end point Fight continuity and there is single order right-hand derivative f ' (a) at place x=a, f ' (a) < 0 or f ' (a) > 0;In let continuous at x=b at right endpoint And there is single order left derivative f ' (b), f ' (b) < 0 or f ' (b) > 0, then f (a) and the corresponding figures of f (b) they are crescent moon peak;It is described Pipeline intermediate point Catastrophe Model --- dovetail peak:PSP monotone increasings on the left of intermediate point, right side PSP monotonic decreasings;On the left of intermediate point PSP monotone increasings, right side PSP monotonic decreasings;If for a function f (x), x ∈ [a, b], in certain point x0Place it is continuous but In the absence of first derivative f ' (x0), if in x0Left side first derivative f ' (x0-) > 0 and in x0Right side first derivative f ' (x0+) < 0, or in x0Left side first derivative f ' (x0-) < 0 and in x0Right side first derivative f ' (x0+) > 0, then f (x0) corresponding to figure Shape is dovetail peak.
In any of the above-described technical scheme preferably, the computer tube webmaster ground potential DPSP distributions:From geomagnetic storm mould A kind of geomagnetic storm pattern k=1 is arbitrarily selected in formula database, this kind of ground is calculated using pipe network mechanism model and given database The pipe network pipe to soil potential DPSP distributions of magnetic storm pattern.
In any of the above-described technical scheme preferably, it is described to search for catastrophe point and judge whether also other geomagnetic storm moulds Formula:According to the pipe network pipe to soil potential PSP distributed data DPSP of k kind geomagnetic storm patterns, searched using pipeline geomagnetic storm disaster catastrophe point Suo Fangfa searches for pipe network geomagnetic storm disaster catastrophe point, Mk={ PK, 1, PK, 2..., PK, Qk};Wherein PK, QkRepresent in kth kind geomagnetic storm In pipe network Q under Mode scanskThe geomagnetic storm disaster catastrophe point that place's location finding is arrived;Judge:If also other geomagnetic storm moulds Formula, k=k+1 is transferred to (7) step and circulated;The collection of search pipe network geomagnetic storm disaster catastrophe point is combined into:M1={ P1,1, P1,2..., P1, Q1}、M2={ P2,1, P2,2..., P2, Q2}、…、Mi={ PI, 1, PI, 2..., PI, Qi}、…、MN={ PN, 1, PN, 2..., PN, QN}。
In any of the above-described technical scheme preferably, the identical mutation point of the various geomagnetic storm patterns that disappear:By After " OR " logical operation, after the identical mutation point for the various geomagnetic storm patterns that disappear, pipe network geomagnetic storm disaster mutation point set is:M =M1(P1,1, P1,2..., P1, Q1)U M2(P2,1, P2,2..., P2, Q2)U…Mi(PI, 1, PI, 2..., PI, Qi)U…U MN(PN, 1, PN, 2..., PN, QN)。
In any of the above-described technical scheme preferably, it is described to define geomagnetic storm disaster catastrophe point evaluation index:Definition ground Dovetail peak and crescent moon peak PSP amplitudes at magnetic storm disaster catastrophe point are geomagnetic storm disaster catastrophe point evaluation index.By evaluation index Pipe network geomagnetic storm disaster mutation point set is ranked up, obtains n catastrophe point position Q's and its corresponding PSP evaluation indexes A Collection is combined into:M=(Q1,1, A1,2;Q2,1, A2,2;…;QI, 1, AI, 2;…;QN, 1, AN, 2)。
In any of the above-described technical scheme preferably, in the step 2, the mutation spot scan of pipe network geomagnetic storm disaster Search method specifically includes following steps:
(1) geomagnetic storm disaster catastrophe point threshold value ESP1 is given;
(2) pipeline node and branch number are given, node is N number of, and branch road is L bars;
(3) pipeline node N and branch road incidence matrix NL, branch road PSP distributed datas DPSP [1 are set up:L;PSP[1:L1(1: L)]], wherein, L1 (1:L 1) is represented:The PSP data lengths of L branch roads;
(4) any one node i=1 is selected from N number of node as initial point, it is C, pipe network to define pipe network end points number End points is geomagnetic storm disaster catastrophe point, so, allow b=C+1, meanwhile, define Metzler matrix storage geomagnetic storm disaster catastrophe point;
(5) the branch road j=1 adjacent with node i is selected from incidence matrix NL;
(6) its PSP (1 is taken from distributed data DPSP:L1 (j)) data;
(7) for pipeline intermediate point, if in point x0Left side (or right side) be increased monotonically and in x0Right side (or left side) is dull Reduce, its x0Point is exactly doubtful geomagnetic storm disaster point;Further, if in x0PSP values are more than threshold value ESP1, its x at point0Point is just It is geomagnetic storm disaster point, deposit M (b), b=b+1;Judge:If also branch road is not selected, next branch road j is just selected =j+1, is transferred to (6) step and is circulated;
(8) judge:If also other nodes are not selected, next node i=i+1 is just selected, (5) step is transferred to Circulated;
(9) output channel geomagnetic storm disaster dot matrix M (1:b).
In any of the above-described technical scheme preferably, in the step 3, outlet line selection optimum results:When having During a plurality of alternative line design schemes, geomagnetic storm disaster catastrophe point quantity should be selected few and to pipeline general impacts it is small (PSP compared with It is small) line design schemes, so as to just efficiently reduce pipeline geomagnetic storm in the Oil & Gas Pipeline Design construction stage to greatest extent The loss that disaster is caused.
The defeated buried Oil/Gas Pipe net route choosing optimization method of length of the defence geomagnetic storm disaster of the present invention, including:Step one, Route choosing is carried out using available data and according to current standard;Step 2, is searched using the mutation spot scan of pipe network geomagnetic storm disaster Rope method finds out the geomagnetic storm disaster catastrophe point of each alternative circuit, carries out line optimization;Step 3, outlet line selection optimization knot Really.Using the defeated buried Oil/Gas Pipe net route choosing optimization method of length of the defence geomagnetic storm disaster of the present invention, by over long distances Buried Oil/Gas Pipe net route choosing optimization, can reduce pipeline geomagnetic storm disaster catastrophe point, reduce pipeline PSP " dovetail peak ", from And the quantity of pipeline cathode protection device is reduced, pipeline anticorrosion cost is greatly saved, buried oil-gas pipeline defence ground is improved The ability of magnetic storm disaster, extension pipeline and relevant device life-span.
Brief description of the drawings
Fig. 1 is the one of the defeated buried Oil/Gas Pipe net route choosing optimization method of length of the defence geomagnetic storm disaster according to the present invention The route choosing optimization method schematic flow sheet of preferred embodiment;
Fig. 2 is the one of the defeated buried Oil/Gas Pipe net route choosing optimization method of length of the defence geomagnetic storm disaster according to the present invention The utilization pipeline geomagnetic storm disaster catastrophe point search method of preferred embodiment finds out the stream of each alternative circuit geomagnetic storm disaster catastrophe point Journey schematic diagram;
Fig. 3 is the one of the defeated buried Oil/Gas Pipe net route choosing optimization method of length of the defence geomagnetic storm disaster according to the present invention The pipe network geomagnetic storm disaster catastrophe point pattern diagram of preferred embodiment;
Fig. 4 is the one of the defeated buried Oil/Gas Pipe net route choosing optimization method of length of the defence geomagnetic storm disaster according to the present invention The pipe network geomagnetic storm disaster catastrophe point scanning search method schematic flow sheet of preferred embodiment;
Embodiment
The present invention is elaborated with reference to the accompanying drawings and detailed description, describes only to conciliate as demonstration below Release, any formal limitation is not made to the present invention.
In order to reduce pipeline geomagnetic storm disaster catastrophe point, pipeline PSP " dovetail peak " is reduced, so as to reduce pipe cathode The quantity of protection device, and in order to reduce pipeline geomagnetic storm disaster catastrophe point PSP mutation content, so as to greatly save pipe Road anticorrosion cost, improves the ability that buried oil-gas pipeline defends geomagnetic storm disaster, extension pipeline and relevant device life-span, design A kind of defeated buried Oil/Gas Pipe net route choosing optimization method of length of defence geomagnetic storm disaster, as shown in figure 1, this method includes three Step, is described as follows:
First, using data such as national geography environment, engineering geological data, urban transportation facilities, and it is existing according to country Standard《GB50251-2003 code for design of gas transmission pipeline engineerings》With《GB50253-2003 Oil Transportation Pipeline Engineering design specifications》's Regulation carries out route choosing.
Wherein, gas pipeline route choosing should meet claimed below:
(1) line alignment should be according to landform, engineering geology, along the line main air inlet, the geographical position of supply point and traffic The conditions such as transport, power, are determined after contrast of multiple-schemes.
(2) circuit preferably avoids perennial industrial crops region and important farmland capital construction facility.
(3) selection that (across) gets over engineering and gas transmission station and oil transportation station location is worn in big-and-middle-sized river, answers coincidence circuit common trend. Local trend should according to it is large and medium-sized wear (across) and get over the position of engineering and gas transmission station and oil transportation station be adjusted.
(4) circuit must avoid important military installations, inflammable and explosive warehouse, state key historic reservation.
(5) circuit should avoid town planning area, airport, railway station, sea (river) port harbour, Nature Reserve Deng region.When pipeline subject to conditions need in above-mentioned zone by when, it is necessary to obtain authorities' agreement, and take safety Safeguard measure.
(6) in addition to tunnel except pipeline accommodation road, bridge, circuit forbids the tunnel, bridge, railway by railway or highway Marshalling yard, Large passenger station and electric substation.
Oil pipeline selection should meet claimed below:
(1) selection of oil pipeline, should according to the purpose and market needs of the engineering construction, with reference to along city, The present situation of the construction such as industrial and mining enterprises, traffic, electric power, water conservancy and planning, and regional on the way landform, landforms, geology, the hydrology, The natural conditions such as meteorology, earthquake, on the premise of operation safety and convenient construction, by comprehensive analysis and technology and economy comparison, Determine circuit common trend.
(2) coincidence circuit common trend is answered in intermediate station and large and medium-sized Crossing Engineering position, but necessary according to its actual conditions When deviateing common trend, the trend of local line can adjust.
(3) oil pipeline must not be set by municipal water source region, factory, airport, railway station, sea (river) port harbour, military affairs Apply, state key cultural relics protection unit and Nature Reserve.When oil pipeline it is subject to conditions must by when, Ying Cai Take necessary safeguard measure and ratify through national departments concerned.
(4) oil pipeline should avoid the harmful engineering ground such as landslide, avalanche, depression, mud-rock flow area, it is mineral resources area, tight Jeopardize the earthquake territory of pipe safety again.When it is subject to conditions must by when, safeguard procedures should be taken and correct position is selected, contract It is small to pass through distance.
(5) Buried Oil Pipelines should be met the following requirements with the minimum spacing of ground buildings or structures:
1. crude oil, C5And C5The distance of above processed oil pipeline and urban settlement or the independent house that the crowd is dense, no Preferably less than 15m.
2. crude oil, C5And C5Above processed oil pipeline is built with airport, sea (river) port harbour, large and middle reservoirs and water conservancy project (structure) builds thing, the distance of factory is not preferably less than 20m.
3. crude oil, liquefied petroleum gas, C5And C5When above processed oil pipeline is with highway, a Class II highway parallel lay-up, Its pipeline center is not preferably less than 10m away from highway land range boundary, three-level and should not be less than 5m to get down the highway.
4. crude oil, C5And C5When above processed oil pipeline is with railway parallel lay-up, pipeline should be laid in apart from railway land model Beyond surrounding edge line 3m.
5. when liquid liquefied petroleum gas pipeline number parallel with railway is set, pipe centerline and state-owned railroads main line, branch line are (single Line) the distance between center line is no less than 25m, 10m respectively.
6. crude oil, C5And C5The same ordnance factory of above processed oil pipeline, military installations, inflammable and explosive warehouse, state key historical relic The minimum range of unit is protected, should be resolved through consultation with relevant department.But the distance of liquid liquefied petroleum gas pipeline and above-mentioned facility It cannot be less than 200m.
7. liquid liquefied petroleum gas pipeline is no less than 75m with urban settlement, the distance of public building.
It should be noted that:1, in this regulation, so-called " distance ", for urban settlement, by edge building Exterior wall is counted;For single factory, airport, harbour, harbour, warehouse etc. should be counted by the area city boundary line delimited;Highway is used Ground scope:Highway embankment side slope pin adds 1m beyond berm and gutter outward flange;Or cutting slope top intercepting ditch, Po Ding be not (if set During intercepting ditch) 1m beyond outward flange.
2, when situation is special or is limited tail feather by landform and other conditions, adjacent buildings or structures are ensured adopting an effective measure After pipe safety, it is allowed to reduce the of above-mentioned (5) article 1.~3. distance as defined in money, but be not preferably less than 8m (three-level and with Get down the highway and be not preferably less than 5m);To in the landform particular difficulty location local pipeline section parallel with highway, being arranged taking reinforcement protection Shi Hou, can be embedded within the highway land scope beyond road shoulder sideline.
Be laid in ground oil pipeline with buildings or structures minimum range, should by above-mentioned (5) article defined away from 1 times from increase.
When Buried Oil Pipelines and overhead transmission line parallel lay-up, its distance should meet national current standard 《GB50061 66kV and following overhead power line design specification》And national current standard《DL/T5092 110~500kV framves Empty Design Transmission Line technical regulation》Regulation.In buried liquid liquefied petroleum gas pipeline, its distance no less than above-mentioned standard Regulation outside, and no less than 10m.
The minimum range of Buried Oil Pipelines and buried communication cable and the buried pipeline parallel lay-up of other purposes, should be accorded with Close national current standard《SY0007 steel pipes and Corrosion of Tanks control engineering design specification》Regulation.
Buried Oil Pipelines with other purposes pipeline laying in one ditch, and using joint cathodic protection pipeline between away from From according to determining the need for construction and maintenance, its minimum clear distance is no less than 0.5m.
When pipeline is with optical cable laying in one ditch, its minimum clear distance (clear distance for referring to the projection of two cross section perpendiculars) is no less than 0.3m.
Second, line optimization utilizes pipe network geomagnetic storm disaster catastrophe point scanning search method (Pipe NetworksGeomagnetic Storms disasters mutation Point Scanning Search method, letter Claim PNGSPSS methods) find out the geomagnetic storm disaster catastrophe point of each alternative circuit.For example, with reference to national current standard 《GB50251-2003 code for design of gas transmission pipeline engineerings》With《GB50253-2003 Oil Transportation Pipeline Engineering design specifications》Regulation Afterwards, it is considered to defend geomagnetic storm disaster, it is uniform straight line that circuit, which should try one's best,;When having to avoid barrier, circuit turns round not Can be too anxious, bend pipe radius of curvature should be larger;Route choosing, which should consider, avoids pipeline parameter from undergoing mutation and avoid pipe network ring Place that border parameter is undergone mutation etc..
As shown in Fig. 2 the step of finding pipe network geomagnetic storm disaster catastrophe point using PNGSPSS methods is:
Set up the mechanism model that pipe network is influenceed by geomagnetic storm.
Set up pipeline parameter database.Pipeline parameter includes:Pipeline itself (resistance per unit length, structure (diameter and thickness Degree) and material composition property), pipeline appendage is (in unit length admittance, structure and property, inside and outside coating composition and pipeline Liquid etc.) etc. parameter.
Set up pipe network ambient parameter data storehouse.Pipe network ambient parameter includes:Pipeline space factor, pipeline air half space because Element, pipeline soil half space factor, pipeline coordinate system component variation rate factor, pipeline by Electromagnetic Sources distribution influence factor and Pipeline other factorses or parameter etc..
Pipeline space factor mainly includes:The air half space and soil half space in whole space etc. are constituted, is related to pipeline The problems such as built on stilts laying and buried laying.Pipeline air half space factor mainly includes:Air themperature, humidity, composition of air Concentration (acid, alkali and salt content), high mountain, river, low-temperature receiver, thermal source, ground cleave and terrain parameter etc..Pipeline soil half space factor master Including:The parameters such as ground resistivity, soil acid-base salt, soil ph, soil ph, chemical composition of soil.Pipeline Coordinate system component variation rate factor mainly includes:Rectangular coordinate system, spherical coordinate system, coordinate system etc. is leant on component variation rate, be related to The parameters such as pipeline turning, pipe branch and height above sea level.Pipeline is mainly included by the factor of Electromagnetic Sources distribution influence:High straightening Flow transmission of electricity, high-voltage AC transmission, electric railway, geomagnetic storm, nuclear blast, thunder and lightning, earth's magnetic field, natural electric field and other artificial electromagnetics Etc..
Set up N kind geomagnetic storm pattern databases.
Define geomagnetic storm disaster mutation dot pattern.
Pipe end point mutation pattern --- crescent moon peak:End points PSP monotone increasings or monotonic decreasing;Point mutation mould in the middle of pipeline Formula --- dovetail peak:PSP monotone increasings on the left of intermediate point, right side PSP monotonic decreasings;PSP monotone increasings on the left of intermediate point, right side PSP monotonic decreasings, as shown in Figure 3.
Note:1 is defined, if for a function f (x), x ∈ [a, b], fight continuity and having one at x=a at left end point Rank right-hand derivative f ' (a), f ' (a) < 0 or f ' (a) > 0;Let continuous and there is single order left derivative f ' (b) at x=b at right endpoint, F ' (b) < 0 or f ' (b) > 0, then f (a) and the corresponding figures of f (b) be just called crescent moon peak, as shown in Figure 3.
2 are defined, if for a function f (x), x ∈ [a, b], in certain point x0Place is continuous but in the absence of first derivative f’(x0), if in x0Left side first derivative f ' (x0-) > 0 and in x0Right side first derivative f ' (x0+) < 0, or in x0Left side one Order derivative f ' (x0-) < 0 and in x0Right side first derivative f ' (x0+) > 0, then f (x0) corresponding to figure be just called dovetail peak.
A kind of geomagnetic storm pattern k=1 is arbitrarily selected from geomagnetic storm pattern database.Use pipe network mechanism model and given Database calculate the pipe network pipe to soil potential DPSP distributions of this kind of geomagnetic storm pattern.
According to the pipe network pipe to soil potential PSP distributed data DPSP of k kind geomagnetic storm patterns, " pipeline geomagnetic storm disaster is dashed forward for utilization Become point searching method " search pipe network geomagnetic storm disaster catastrophe point, Mk={ PK, 1, PK, 2..., PK, Qk}.Wherein PK, QkRepresent in kth Plant under geomagnetic storm Mode scans in pipe network QkThe geomagnetic storm disaster catastrophe point that place's location finding is arrived.Judge:If also other Geomagnetic storm pattern, k=k+1 is transferred to (7) step and circulated.
The collection of search pipe network geomagnetic storm disaster catastrophe point is combined into:
M1={ P1,1, P1,2..., P1, Q1}、M2={ P2,1, P2,2..., P2, Q2}、…、Mi={ PI, 1, PI, 2..., PI, Qi}、…、MN={ PN, 1, PN, 2..., PN, QN}。
After " OR " logical operation, after the identical mutation point for the various geomagnetic storm patterns that disappear, pipe network geomagnetic storm disaster is dashed forward Become point set into:
M=M1(P1,1, P1,2..., P1, Q1)U M2(P2,1, P2,2..., P2, Q2)U…Mi(PI, 1, PI, 2..., PI, Qi)U…U MN(PN, 1, PN, 2..., PN, QN)
It is that the assessment of geomagnetic storm disaster catastrophe point refers to define dovetail peak and crescent moon peak PSP amplitudes at geomagnetic storm disaster catastrophe point Mark.Pipe network geomagnetic storm disaster mutation point set is ranked up by evaluation index, n catastrophe point position Q is obtained and its corresponding PSP evaluation indexes A collection is combined into:
M=(Q1,1, A1,2;Q2,1, A2,2;…;QI, 1, AI, 2;…;QN, 1, AN, 2)。
As shown in figure 4, pipeline geomagnetic storm disaster is mutated point searching method, comprise the following steps:
(1) geomagnetic storm disaster catastrophe point threshold value ESP1 is given;
(2) to pipeline node and branch number (node is N number of and branch road is L bars);
(3) pipeline node N and branch road incidence matrix NL, branch road PSP distributed datas DPSP [1 are set up:L;PSP[1:L1(1: L)]], wherein, L1 (1:L 1) is represented:The PSP data lengths of L branch roads;
(4) any one node i=1 is selected from N number of node as initial point, it is C, pipe network to define pipe network end points number End points is geomagnetic storm disaster catastrophe point, so, allow b=C+1, meanwhile, define Metzler matrix storage geomagnetic storm disaster catastrophe point;
(5) the branch road j=1 adjacent with node i is selected from incidence matrix NL;
(6) its PSP (1 is taken from distributed data DPSP:L1 (j)) data;
(7) for pipeline intermediate point, if in point x0Left side (or right side) be increased monotonically and in x0Right side (or left side) is dull Reduce, its x0Point is exactly doubtful geomagnetic storm disaster point.Further, if in x0PSP values are more than threshold value ESP1, its x at point0Point is just It is geomagnetic storm disaster point, deposit M (b), b=b+1.Judge:If also branch road is not selected, next branch road j is just selected =j+1, is transferred to (6) step and is circulated;
(8) judge:If also other nodes are not selected, next node i=i+1 is just selected, (5) step is transferred to Circulated;
(9) output channel geomagnetic storm disaster dot matrix M (1:b).
3rd, outlet line selection optimum results.When there are a plurality of alternative line design schemes, geomagnetic storm disaster should be selected Catastrophe point quantity is few and to the line design schemes of pipeline general impacts small (PSP is smaller), so as to be managed to greatest extent in Chan Pan The road design and construction stage just efficiently reduces the loss that pipeline geomagnetic storm disaster is caused.Described above is only to the preferred of the present invention Embodiment is described, and is not that the scope of the present invention is defined, on the premise of design spirit of the present invention is not departed from, Various modifications and improvement that this area ordinary skill technical staff makes to technical scheme, all should fall into the present invention's In the protection domain that claims are determined.

Claims (22)

1. a kind of defeated buried Oil/Gas Pipe net route choosing optimization method of length of defence geomagnetic storm disaster, this method includes following step Suddenly:
Step one, using available data and according to current standard progress route choosing;
The utilization available data is using national geography environmental data, engineering geological data data, urban transportation facility Data;
Described according to current standard is included according to national current standard《GB50251-2003 code for design of gas transmission pipeline engineerings》 With《GB50253-2003 Oil Transportation Pipeline Engineering design specifications》;
Step 2, the geomagnetic storm disaster for finding out each alternative circuit using pipe network geomagnetic storm disaster catastrophe point scanning search method is mutated Point, carries out line optimization;
The pipe network geomagnetic storm disaster catastrophe point scanning search method specifically includes following steps:
(1) geomagnetic storm disaster catastrophe point threshold value ESP1 is given;
(2) pipeline node and branch number are given, node is N number of, and branch road is L bars;
(3) pipeline node N and branch road incidence matrix NL, branch road PSP distributed datas DPSP [1 are set up:L;PSP[1:L1(1:L)]], Wherein, L1 (1:L 1) is represented:The PSP data lengths of L branch roads;
(4) any one node i=1 is selected from N number of node as initial point, it is C, pipe network end points to define pipe network end points number It is geomagnetic storm disaster catastrophe point, so, allow b=C+1, meanwhile, define Metzler matrix storage geomagnetic storm disaster catastrophe point;
(5) the branch road j=1 adjacent with node i is selected from incidence matrix NL;
(6) its PSP (1 is taken from distributed data DPSP:L1 (j)) data;
(7) for pipeline intermediate point, if on the left of point x0 or right side is increased monotonically and on the right side of x0 or the monotone decreasing of left side, its X0 points are exactly doubtful geomagnetic storm disaster point;Further, if PSP values are more than threshold value ESP1 at x0 points, its x0 point is exactly earth magnetism Sudden and violent disaster point, deposit M (b), b=b+1;Judge:If also branch road is not selected, next branch road j=j+1 is just selected, (6) step is transferred to be circulated;
(8) judge:If also other nodes are not selected, next node i=i+1 is just selected, the progress of (5) step is transferred to Circulation;
(9) output channel geomagnetic storm disaster dot matrix M (1:b);
Step 3, outlet line selection optimum results.
2. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 1, it is special Levy and be:In the step one, using national geography environmental data, engineering geological data data, urban transportation facility data, And include according to current standard according to national current standard《GB50251-2003 code for design of gas transmission pipeline engineerings》With 《GB50253-2003 Oil Transportation Pipeline Engineering design specifications》Gas pipeline circuit selected, selection is required to include:
(1) line alignment is according to landform, engineering geology, along the line air inlet, the geographical position of supply point and communications and transportation, power bar Part, is determined after contrast of multiple-schemes;
(2) circuit avoids perennial industrial crops region and important farmland capital construction facility;
(3) big-and-middle-sized River Crossing engineering and gas transmission station, the selection coincidence circuit common trend of oil transportation station location, locally move towards basis Large and medium-sized crossing project and gas transmission station, the position of oil transportation station are adjusted;
(4) circuit avoids important military installations, inflammable and explosive warehouse, state key historic reservation;
(5) circuit avoids town planning area, airport, railway station, sea port dock, Nature Reserve, when by condition Limitation, pipeline need in above-mentioned zone by when, authorities must be obtained and agree to and take safety precautions;
(6) in addition to tunnel except pipeline accommodation road, bridge, circuit is forbidden to organize into groups by the tunnel, bridge, railway of railway or highway Stand, Large passenger station and electric substation.
3. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 1, it is special Levy and be:In the step one, using national geography environmental data, engineering geological data data, urban transportation facility data, And include according to current standard according to national current standard《GB50251-2003 code for design of gas transmission pipeline engineerings》With 《GB50253-2003 Oil Transportation Pipeline Engineering design specifications》Oil pipeline is selected, selection is required to include:
(1) according to the purpose of the engineering construction and market needs, city, industrial and mining enterprises, traffic, electric power, water conservancy are built with reference to along If present situation and planning, and regional on the way landform, landforms, geology, the hydrology, meteorology, the natural conditions of earthquake, in operation peace On the premise of complete and convenient construction, by comprehensive analysis and technology and economy comparison, circuit common trend is determined;
(2) coincidence circuit common trend is answered in intermediate station and large and medium-sized Crossing Engineering position, but must be deviateed according to its actual conditions During common trend, the trend of local line can adjust;
(3) pipeline must not pass through municipal water source region, factory, airport, railway station, sea port dock, military installations, state key text Thing protects unit and Nature Reserve, when oil pipeline it is subject to conditions must by when, necessary protection should be taken Measure is simultaneously ratified through national departments concerned;
(4) pipeline should avoid landslide, avalanche, depression, the harmful engineering ground area of mud-rock flow, mineral resources area, seriously jeopardize pipe Road safety earthquake territory, when it is subject to conditions must by when, safeguard procedures should be taken and correct position is selected, reduce by away from From;
(5) Buried Oil Pipelines should meet regulation with the minimum spacing of above ground structure;
(6) be laid in ground oil pipeline with building minimum range, should by above-mentioned (5) article defined distance increase 1 times;
(7) when Buried Oil Pipelines and overhead transmission line parallel lay-up, its distance should meet national current standard 《GB50061 66kV and following overhead power line design specification》And national current standard《DL/T5092 110~500kV framves Empty Design Transmission Line technical regulation》Regulation;Buried liquid liquefied petroleum gas pipeline, its distance is not less than in above-mentioned standard Regulation, and not less than 10m;
(8) minimum range of Buried Oil Pipelines and the buried pipeline parallel lay-up of buried communication cable, should meet country existing Standard《The steel pipes of SY 0007 and Corrosion of Tanks control engineering design specification》Regulation;
(9) Buried Oil Pipelines with other purposes pipeline laying in one ditch, and using joint cathodic protection pipeline between away from From according to determining the need for construction and maintenance, its minimum clear distance is not less than 0.5m;
(10) when pipeline is with optical cable laying in one ditch, the clear distance of its minimum clear distance, i.e. two cross section perpendiculars projection is not less than 0.3m.
4. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 3, it is special Levy and be:Described (5) item is specifically included to Buried Oil Pipelines with the regulation of the minimum spacing of above ground structure:
1. crude oil, C5And C5The distance of above processed oil pipeline and urban settlement or the independent house that the crowd is dense is not less than 15m;
2. crude oil, C5And C5Above processed oil pipeline and airport, sea port dock, large and middle reservoirs and hydraulic structure, factory Distance is not less than 20m;
3. crude oil, liquefied petroleum gas, C5And C5When above processed oil pipeline is with highway, a Class II highway parallel lay-up, it is managed Road centre-to-centre spacing highway land range boundary is not less than 5m not less than 10m, three-level and to get down the highway;
4. crude oil, C5And C5When above processed oil pipeline is with railway parallel lay-up, pipeline should be laid in apart from railway land scope side Beyond line 3m;
5. when liquid liquefied petroleum gas pipeline number parallel with railway is set, pipe centerline and state-owned railroads main line, branch line center line The distance between be respectively not less than 25m, not less than 10m;
6. crude oil, C5And C5The same ordnance factory of above processed oil pipeline, military installations, inflammable and explosive warehouse, state key historical relic's protection The minimum range of unit, should resolve through consultation with relevant department, but the distance of liquid liquefied petroleum gas pipeline and above-mentioned facility is not small In 200m;
7. the distance of liquid liquefied petroleum gas pipeline and urban settlement, public building is not less than 75m.
5. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 3, it is special Levy and be:In the requirement that selection is carried out to oil pipeline, the distance:For urban settlement, built by edge The exterior wall for building thing is counted;For single factory, airport, harbour, harbour, warehouse are counted by the area city boundary line delimited;For Highway land scope, highway embankment side slope pin adds outside 1m beyond berm and gutter outward flange, or cutting slope top intercepting ditch, slope top 1m beyond edge.
6. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 4, it is special Levy and be:When situation is special or is limited by orographic condition, after adopt an effective measure guarantee adjacent buildings and pipe safety, Allow to reduce to Buried Oil Pipelines with as defined in the minimum spacing of above ground structure the 1.~3. distance as defined in money, but not Less than 8m;To that in the landform particular difficulty location local pipeline section parallel with highway, after reinforcement safeguard measure is taken, can bury Within the highway land scope beyond road shoulder sideline.
7. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 1, it is special Levy and be:In the step 2, the ground of each alternative circuit is found out using pipe network geomagnetic storm disaster catastrophe point scanning search method Magnetic storm disaster catastrophe point, comprises the following steps:
(1) mechanism model that pipe network is influenceed by geomagnetic storm is set up;
(2) pipeline parameter database is set up;
(3) pipe network ambient parameter data storehouse is set up;
(4) N kind geomagnetic storm pattern databases are set up;
(5) geomagnetic storm disaster mutation dot pattern is defined;
(6) computer tube webmaster ground potential DPSP is distributed;
(7) search for catastrophe point and judge whether also other geomagnetic storm patterns;
(8) the identical mutation point for the various geomagnetic storm patterns that disappear;
(9) geomagnetic storm disaster catastrophe point evaluation index is defined.
8. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 7, it is special Levy and be:Described (2) item sets up pipeline parameter database, and its pipeline parameter includes pipeline inherent parameters, pipeline attaching part Divide parameter, pipeline inherent parameters include resistance per unit length, structure and material composition property, and pipeline appendage parameter includes single Liquid in bit length admittance, structure and property, inside and outside coating composition and pipeline.
9. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 7, it is special Levy and be:Described (3) item sets up pipe network ambient parameter data storehouse, and its pipe network ambient parameter includes pipeline space factor, pipe Road air half space factor, pipeline soil half space factor, pipeline coordinate system component variation rate factor, pipeline are by Electromagnetic Sources point The factor of cloth influence.
10. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 9, it is special Levy and be:The pipeline space factor includes:The air half space and soil half space in whole space are constituted, is related to pipeline and makes somebody a mere figurehead The problem of laying and buried laying.
11. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 9, it is special Levy and be:The pipeline air half space factor includes:It is air themperature, humidity, the concentration of composition of air, high mountain, river, cold Source, thermal source, ground cleave and terrain parameter.
12. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 9, it is special Levy and be:The pipeline soil half space factor includes:Ground resistivity, soil acid-base salt, soil ph, soil acid-base Property, the parameter of chemical composition of soil.
13. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 9, it is special Levy and be:The pipeline coordinate system component variation rate factor includes:Rectangular coordinate system, spherical coordinate system, lean on coordinate system with component become Rate, is related to the parameter of pipeline turning, pipe branch and height above sea level.
14. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 9, it is special Levy and be:The pipeline is included by the factor of Electromagnetic Sources distribution influence:D.C. high voltage transmission, high-voltage AC transmission, electrification Railway, geomagnetic storm, nuclear blast, thunder and lightning, earth's magnetic field, natural electric field and artificial electromagnetic.
15. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 7, it is special Levy and be:The definition geomagnetic storm disaster mutation dot pattern of described (5) item, its pattern includes:Pipe end point mutation pattern --- Crescent moon peak, pipeline intermediate point Catastrophe Model --- dovetail peak.
16. the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster is defendd as claimed in claim 15, its It is characterised by:The pipe end point mutation pattern --- crescent moon peak:End points PSP monotone increasings or monotonic decreasing;If for one Individual function f (x), x ∈ [a, b], at left end point at x=a fight continuity and there is single order right-hand derivative f'(a), f'(a) < 0 or f' (a) > 0;At right endpoint at x=b let continuous and there is single order left derivative f'(b), f'(b) < 0 or f'(b) > 0, then f (a) Corresponding figure is crescent moon peak with f (b).
17. the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster is defendd as claimed in claim 15, its It is characterised by:The pipeline intermediate point Catastrophe Model --- dovetail peak:PSP monotone increasings on the left of intermediate point, under right side PSP is dull Drop;PSP monotone increasings on the left of intermediate point, right side PSP monotonic decreasings;If for a function f (x), x ∈ [a, b], a certain Point x0Place is continuous but in the absence of first derivative f'(x0), if in x0Left side first derivative f'(x0-) > 0 and in x0Right side single order is led Number f'(x0+) < 0, or in x0Left side first derivative f'(x0-) < 0 and in x0Right side first derivative f'(x0+) > 0, then f (x0) Corresponding figure is dovetail peak.
18. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 7, it is special Levy and be:The computer tube webmaster ground potential DPSP distributions of described (6) item:Any selection is a kind of from geomagnetic storm pattern database Geomagnetic storm pattern k=1, the pipe network pipe to soil potential of this kind of geomagnetic storm pattern is calculated using pipe network mechanism model and given database DPSP is distributed.
19. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 7, it is special Levy and be:The search catastrophe point of described (7) item simultaneously judges whether also other geomagnetic storm patterns:According to k kind geomagnetic storm patterns Pipe network pipe to soil potential PSP distributed data DPSP, utilize pipeline geomagnetic storm disaster mutation point searching method search pipe network geomagnetic storm Disaster catastrophe point, Mk={ Pk,1, Pk,2..., PK, Qk};Wherein Pk,QkRepresent under kth kind geomagnetic storm Mode scans in pipe network Qk The geomagnetic storm disaster catastrophe point that place's location finding is arrived;Judge:If also other geomagnetic storm patterns, k=k+1 is transferred to (7) step Circulated;The collection of search pipe network geomagnetic storm disaster catastrophe point is combined into:M1={ P1,1, P1,2..., P1, Q1}、M2={ P2,1, P2,2..., P2, Q2}、…、Mi={ Pi,1, Pi,2..., PI, Qi}、…、MN={ PN,1, PN,2..., PN, QN}。
20. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 7, it is special Levy and be:The identical mutation point of the various geomagnetic storm patterns that disappear of described (8) item:After " OR " logical operation, disappear each After the identical mutation point for planting geomagnetic storm pattern, pipe network geomagnetic storm disaster mutation point set is:M=M1(P1,1, P1,2..., P1,Q1)U M2(P2,1, P2,2..., P2, Q2)U…Mi(Pi,1, Pi,2..., PI, Qi)U…U MN(PN,1, PN,2..., PN, QN)。
21. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 7, it is special Levy and be:Described (9) define geomagnetic storm disaster catastrophe point evaluation index:Define geomagnetic storm disaster catastrophe point at dovetail peak and Crescent moon peak PSP amplitudes are geomagnetic storm disaster catastrophe point evaluation index, and point set is mutated to pipe network geomagnetic storm disaster by evaluation index It is ranked up, the collection for obtaining n catastrophe point position Q and its corresponding PSP evaluation indexes A is combined into:M=(Q1,1, A1,2;Q2,1, A2,2;…;Qi,1, Ai,2;…;Qn,1, An,2)。
22. defending the defeated buried Oil/Gas Pipe net route choosing optimization method of length of geomagnetic storm disaster as claimed in claim 1, it is special Levy and be:In the step 3, outlet line selection optimum results:When there is a plurality of alternative line design schemes, it should select Few and small to the pipeline general impacts line design schemes of geomagnetic storm disaster catastrophe point quantity, so as to greatest extent in Oil/Gas Pipe The road design and construction stage just efficiently reduces the loss that pipeline geomagnetic storm disaster is caused.
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