CN1032079C - Method of supplying gas to gas consumeng - Google Patents
Method of supplying gas to gas consumeng Download PDFInfo
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- CN1032079C CN1032079C CN 92113093 CN92113093A CN1032079C CN 1032079 C CN1032079 C CN 1032079C CN 92113093 CN92113093 CN 92113093 CN 92113093 A CN92113093 A CN 92113093A CN 1032079 C CN1032079 C CN 1032079C
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- saturated air
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Abstract
The present invention relates to a method of supplying natural gas to gas consumers, which is characterized in that a storing house is constructed on a water layer containing saturated air in development, natural gas generated by periodically applying external action to a developing stratum is filled in the storing house with the construction and the is delivered to gas consumers, and the external action can be applied through generating elastic vibration, supplying pressure difference, rise in temperature and electromagnetic oscillation or using the requirements in a combination mode. If the method of the present invention is used for earthquake active regions or regions easy to receive the elastic vibration, the effect can be obviously enhanced.
Description
The present invention relates to a kind of method of natural gas being supplied with the user, particularly relate to and building buttery near the natural gas user, with natural gas it is full of, from well, reclaims natural gas subsequently, it is supplied with natural gas user's method from the water layer sucking-off that contains saturated air.
The present invention can be advantageously used in creating a natural gas reservoir of preparing use, and with simple and reliable mode natural gas is wherein taken out supply natural gas user.
Usually, natural gas is to produce in natural gas, natural gas coagulation and oil---natural gas---coagulation in the stratum that long-term (geology term) forms naturally regional, and natural gas user (industrial enterprise for example, municipal corporation etc.) obtain with following manner: from the natural gas coagulation, produce natural gas---processing---on the spot with natural gas transport to the natural gas consumption district, build buttery there and fill natural gas and make it to become gas source and supply with the user at any time.
In order to address the above problem, in prior art, normally building a underground tank, for example Trebin F.A. near the consumption area, gas production one book (the Nedra publishing house of Makogon Yu.F. and BasnievK.S. work, Moscow, 1976, what P368) describe was exactly this technology.In known technology, this technology is the natural gas coagulation that forms at the exploration nature and when falling the reserves of estimating natural gas according to the pressure in crack, uses the nature geological process and the underground oil storage structure oil reservoirs that produce.For example, Soviet Union's certificate of invention 1,032, No. 171 (announcement on July 30 nineteen eighty-three) proposed a kind of method, in this way, utilize the oil-bearing structure above one deck natural gas coagulation, the reserves of estimating natural gas fall in the pressure that flows through the crack place of oil-bearing structure passage in oil-bearing structure according to natural gas, but can not reclaim the natural gas of this scope as much as possible.
Soviet Union's certificate of invention No. 442287 (announcement on November 21st, 1974) provides another kind of method, this method is to make natural gas---the hydrate coagulation bears electromagnetic launcher or inserts the vibration effect of the magnetostriction drill bit generation of gas well, and free natural gas is therefrom overflowed.
In known technology (with reference to Soviet Union's certificate of invention 859, No. 606, announced on October 5th, 1981), also know a kind of method of controlling oil well, utilize this method that a sound vibration source is sunk to natural gas is overflowed in the oil well fluid column, then oil well is controlled at the mode of operation that natural gas rises.
Also have a kind of known method of producing natural gas, this method is to come transport gas by the liquid that flow to ground subterranean strata (thin layer), to isolate natural gas then (with reference to Petroleum Production one book from liquid, NEDRA publishing house, Moscow, 1974, P511-512).
United States Patent (USP) No. 4040487 (announcement on August 9th, 1974) and No. 4116276 (announcement on November 26th, 1978) propose to improve with the method for pumps water a kind of stratum of and natural gas moisture from water layer the method for the output of natural gas.
Also know in the known technology a kind of method of utilizing vibration and sound effect from the natural coagulation of hydrocarbon, to reclaim hydrocarbon (with reference to No. 8952800, United States Patent (USP), announcement on April 27th, 1976; No. 4060128, announced on November 29th, 1977; No. 4114689, announced on September 19th, 1978; No. 4417621, November 29 nineteen eighty-three), and association fuel factor (No. 4049053, reference example such as United States Patent (USP), on September 20th, 1977) or use Electromagnetic Environmental Effect (with reference to No. 4084638, United States Patent (USP), on April 18th, 1970; No. 1161978, announced on August 21st, 1979; No. 4638863, announced and No. 4705108 on July 25th, 1986, announced on November 10th, 1987).
But the above-mentioned patent of quoting as proof is not overflowed from the gassiness water layer for natural gas, forms bunker, develops new gas field etc. and takes measures.
Major defect in the known method is as follows:
---at the storage tank that uses underground natural gas-storing near natural gas user's place, natural gas with initial extraction is filled, this natural gas is normally come from the transportation in advance from natural gas user natural gas producing region quite far away, this system that natural gas is supplied with the natural gas user relates to trunk pipeline, pumping plant etc., and consume fund, material and power etc. in a large number.
---the water that contains saturated air on stratum is pumped to ground isolate natural gas then and be actually disadvantageous, transfer a large amount of liquid because this relates to, and because the high mineralization effect of formation water has brought many troubles.
---reduce the way of the pressure of water layer with long-term (at least one year) constant extraction water, extract natural gas out from water layer and have some shortcomings mentioned above (needing from every mouthful of well, to extract out 15 to 25 * 10 barrels water every day), collect natural gas lentamente, and the natural gas of regaining from the stratum is incomplete.
The characteristics of all the other quoted passages of known technology level be with develop among natural hydrocarbon deposit thing link together.
In the middle of that, among the hydrocarbon of extraction is being developed gradually for a long time, and newfound hydrocarbon is quite far away from other zone of industrial occupancy and use natural gas usually, and natural fate will be spent work and money to them.As in earth depths since the new deposit layer that natural process occurs think to form in the stratum epoch.
In this respect, reclaim the problem that natural gas ran into from other gas source production and become more and more sharp-pointed, in fact, produce the problem of natural gas from the gassiness water layer, before the present invention is come out, from this stratum, directly collect natural gas and be considered to impossible, there is not industrial future at least.This stratum quite generally and through being everlasting is found near the area of using natural gas at occurring in nature.This stratum often is joined together to form considerable several thousand square kilometres the underground mining area even also may be bigger of reaching of area.Utilize them to collect natural gas, particularly those places of---natural gas---coagulated sediment did not have at natural gas and oil, but might improve the tonnage of gas production considerablely, had promoted natural gas is supplied with the solution of user's problem.
Before the present invention is come out,, from water layer, do not give due attention with the commercial mass production natural gas because above-mentioned known method will drop into too much labour and benefit is very poor.
The present invention seeks to address the above problem.
The purpose of this invention is to provide a kind of natural gas that will from contain the saturated air water layer, extract and supply with the user, the output of natural gas is extracted in raising from gas reserves, reduce the expense relevant with transport natural gas, and use the natural or artificial source of elastic vibrations that exists in this or that zone, to reduce the power consumption of producing natural gas in this stratum.
Above-mentioned purpose is finished by following manner: construction bunker on contain the saturated air water layer, and make and contain that the saturated air water layer is subjected to the period effects of different-effect and the natural gas separated is filled.Verified correct be used in combination this factor can be effectively and extract natural gas and it is stored in the bunker of construction like this from containing the saturated air water layer reliably so that to natural gas user stable supplying natural gas.
Apply effect periodically and can realize to containing the saturated air water layer by the mode that in above-mentioned stratum, produces elastic vibration, for example available blast and/or by means of sound source, vibration or seismic wave bring out elastic vibration.
This effect also can for example be injected vapours or consumption to water layer (particularly by injecting well) by heating up, and for example by natural gas suction well, sinks in the stratum heat that electric heater produces.When finding that natural gas is a form with gas hydrates when existing, and preferably adopts fuel factor.
Being applied to the effect that contains on the saturated air water layer also can be by means of electromagnetic field, for example with the discharger discharge or sink to water layer and feed the electromagnetic field that the electrode of constant (as frequency modulation) voltage produces.
Elastic vibration and current effect not only take place in fluid, but also its effect are applied on the geological stratification of oil-collecting characteristic.For example, water/natural gas---saturated geological stratification is subjected to electric pulse owing to making, just produced heat, electromagnetism and physics---chemical effect (for example current impulse excites electrolysis phenomenon, electroosmosis etc.), and elasticity is hit ripple, shock wave at first makes the oil-collecting layer break, and the natural gas flow that quickens to overflow is collected natural gas more completely to gas well from the rock stratum.
Because the elastic vibration effect that the water layer that contains saturated air is interrupted, the speed that natural gas is overflowed obviously rises, and impels and quickens natural gas to flow to bunker, with by vibrating the mobile state of also controlled preparing natural gas.Frequency of utilization is 0.1 to 60Hz low frequency vibration, with by being arranged on the independent seismic origin on basseting, buries the quite dark water layer that contains saturated air in the sizable area of area and apply effect for simultaneously several being present in.Use this vibration can also guarantee the gas production of maximum possible.
For example use from the way formation pressure reduction of the local discharge water of water layer and also can realize applying periodic outwards scavenging action to the water layer that contains saturated air.
Use above-mentioned each key element simultaneously with various combination, and use the different energy sources that produces this effect also can apply periodic effect to the water layer that contains saturated air according to concrete condition of work.Being applied to the mechanism of action on the target and degree with this integration factor is not only to be determined by the summation of the mechanism of each key element, but by the qualitative and quantitative new key element decision of this combination results.Use integration factor to improve the benefit of the inventive method.For example, if elastic reaction combines with depressurization, it is more remarkable that exhaust effect becomes, faster than one in the above-mentioned key element of independent use.
Except that above-mentioned key element, also can use some other known key element guiding natural gases from the water layer that contains saturated air, to overflow.
The summation of concrete parameter, the general conditions (comprising pressure, temperature, specific volume) of the water layer that contains saturated air is promptly described, its composition, the physical and chemical performance of fluid and rock stratum (comprising relaxation property), variation when applying various key element, oil-collecting and other characteristic of rock, the resonance characteristics on stratum, the rate of flooding of bunker and degree are got the periodicity that the summation of the speed of deciding natural gas and other factor has determined these effects for satisfying user's needs.
Be subjected to time spent of doing of above-mentioned key element when containing the gentle water layer of bubble, natural gas begins therefrom to overflow, and overflows with various form: with dissolved state, with free state, as natural bubble, as the hydrate of natural gas etc.But the natural gas of overflowing from this stratum is uneven, is to interrelate with their geological structure and natural gas degree of saturation.In addition, the inhomogeneities of natural gas effusion can not be controlled with the synchronism of the control activity of discharging.Just because this inhomogeneities, making does not have possibility directly to supply with the natural gas user with the natural gas of overflowing, even concerning the mode of the most modern cost-effective transport gas, also reduce rising suddenly because of gas pressure, the rapid variation of flow velocity cannot, thereby, must be used in combination above-mentioned key element.
According to the present invention, give except that needs to contain the saturated air water layer and outwards apply periodically the scavenging action, what interrelate with it will build a bunker at least on this stratum.Term used herein " bunker " means the constant volume that can collect the effusion natural gas, for example underground space and hole, also refer to any have than encirclement contain the big pore structure that manys of the ground mass shell of water layer of saturated air and the void volume of gas permeability.
Term " construction " can refer to various operations according to concrete geological conditions, it can be the appearance of detecting structure, guarantee zone probing and sealing boring are occurring near structure, and for example with blast, the permafrost haorizon rock thaws for many years, cleans salt deposit, the cavity in the clay etc., and, comprise also that wherein the top to rock seals with known method oppose side wall.On the different water layers that contains saturated air, several bunkers can be built, and these bunker fluid communication with each other can be made.
Apply in the process that effect and natural gas therefrom overflow periodically for the water layer contain saturated air, the bunker of Jian Zaoing normally is filled like this.Method of the present invention do not get rid of yet will from the natural gas that water layer is overflowed guide into the carbon gasification compound layer above fill again.
In fact, when pouring into natural gas and bunker is full of, can produce new natural gas coagulation or gas reservoir stratum.
During this time, because it is unessential forming the coagulative geological process of natural gas, so also become inessential from the inhomogeneities of the original water layer effusion natural gas that contains saturated air, thereby the gas reservoir that forms like this can be directly as the sufficient stable source of the gas of supplying with natural gas.
Because method of the present invention, can make the sizable water layer that contains saturated air of scope be used for the industrial production natural gas, and might be, and select to give these stratum periodically to apply the zone of scavenging action accordingly with the zone of the specific construction bunker of certain flexibility selection on this stratum.Select to be considered to the comparison reasonable plan, because this can save the transportation of natural gas near natural gas user's regional nature.
More may do such selection: in the place of natural or artificial source of elastic vibrations, bunker of construction on contain the water layer of saturated air, more precisely, can select the power station of earthquake active region or close operation, railway, military experimental area, the quarry of carrying out explosion, areas such as industrial enterprise.In all these occasions, the natural gas of overflowing in this area has been full of bunker, the underground water layer that contains saturated air is subjected to the elastic vibration effect that the above-mentioned energy produces, thereby the needs of above-mentioned artificial effect have been reduced, thereby has reduced the power consumption of producing natural gas.
Method of the present invention has following advantage: make those commercial Application that are considered to useless nonrecoverable a large amount of gases so far bring favourable turn; Form natural gas reservoir, comprise the most close natural gas user's natural gas reservoir; Mode with the best has solved the natural gas storage problem; Natural gas user and neutralizing gas be combined into one form common automatic control system; Gas production and supply process are more effectively controlled; Reduced attendant's quantity; Also owing to having shortened distance that natural gas and equipment carry, having saved construction primary transfer line, pumping plant, air storage factory or the like and reduced material, fund, power and other consumption.The inventive method is not because need remote transport gas, so as safe as a house to external world.The inventive method also comprise some other can be from above drawing present technique field professional conspicuous advantage.
Fig. 1 is the schematic diagram of an embodiment of the inventive method, and wherein, the water layer of containing saturated air for the localized source that sinks to the stratum by gas well applies outside scavenging action.
Fig. 2 is another embodiment of the inventive method, and the water layer that wherein contains saturated air is subjected to applying the synergy of the different energy sources of outside scavenging action.
Fig. 3 represents the another embodiment of the inventive method, has wherein built a bunker on the water layer that is containing saturated air near place natural or manually vibration source.
Some easy to operate or in the selected zone, on the water layer 1 that contains saturated air, sink to a bite well 2 (Fig. 1) at least for some other consideration.In order to collect the coal gas of effusion, on the stratum, to be engaged in and make artificial cavity---be the work of buttery 3, the device of taking natural gas by the perforated portion 4 of gas well 2 from buttery continuously away will be set simultaneously.
Subsequently, the water layer that contains saturated air is subjected to external action, and according to one embodiment of the present of invention, the water layer that contains saturated air will be subjected to the discharge process that discharger produces, this discharger schematically represents to have done the energy 5 of partial exhaust gas effect, and explosive also can constitute the energy of partial exhaust gas effect.According to an alternative embodiment of the invention, the stratum will be subjected to imbedding the effect of the electromagnetic field that the electrode 6 in the axial drilling of special use shown in Figure 2 produces.Also can apply external action by means of the source of elastic vibrations 7 of basseting.In all these embodiment, all be with pressured poor, for example get part water by well 2, the pressure that reduces water layer improves the effect of external action.
As indicated above, external action can combine, as shown in Figure 2.
But, as shown in Figure 3, when in hole natural or artificial source of elastic vibrations, having formed a buttery, it is quite low that the effect that need additionally apply for special exhaust may become, and this is because the flexibly seismic wave that acts on the water layer that contains saturated air impels and significantly strengthened gas effusion process.
In the above-mentioned whole embodiment that selection is provided that apply extra scavenging action, containing natural gas contained in the water layer of saturated air begins to overflow, because the proportion of natural gas is lower than the proportion of water, gas rises and accumulates in the buttery, and can therefrom extract out by the wellhole part of gas well.
For realizing method of the present invention, imbed the dark 1200 meters gas well of a bite 2, make it to arrive the water layer that contains saturated air, characteristic parameter is as follows:
---buried depth 1000---1500 meters
---500 meters of the capacity of water layer gassiness
1.5-2 meters of the specific volumes of-dissolved natural gas
3/ rice
3
---the composition of dissolved natural gas comprises:
CH
4 95—98％
C
2H
6—C
5H
12 0.5—0.3％
---stratum (ore bed) pressure 10-15MPa
---20 ℃ of formation temperatures
---the density 1.011 of water
There is a crack to need sealing at the boundary that is stained with between layer and the sandy layer, available grouting is finished, make a buttery with known method, by gas well a vibration source 5 is sunk to water layer 1 with hawser, then, use method shown in Figure 1, make this water layer bear vibration/wave action, by in the route of water layer, the natural gas that is dissolved in wherein begins to overflow in elastic vibration.Because and water is more less than the proportion of natural gas, so natural gas rises to ground, the operating mode of taking natural gas by well away is controllable.
Following let us is checked an embodiment of the inventive method at seismically active zone, and the characteristic parameter that appears at the water layer that contains saturated air on the Jurassic Period ground layer height in this activity area is as follows: the water of the calcium chloride formula that produces owing to mineralization is 91-147 grams per liters.Water contains iodine 1-12 mg/litre, brominated 294-426 mg/litre.The characteristics of this water layer water be the natural gas degree of saturation very high (2,581-3,172n.cm
3/ liter).Water-soluble natural gas is main to be methane, and its concentration reaches 83-95%, and the concentration of heavy hydrocarbons is no more than 0.5%, the composition (being up to 0.5%) of natural gas also nitrogenous (10%) and acid, and the whole pressure of dissolved natural gas reaches 21-51MPa.
For realizing this specific embodiment of the inventive method, need to bore dark about 3000 a meters well, make a buttery with said method, accumulating in owing to the natural gas that geological process is overflowed in the buttery, when the week that deposits and form gas/water interface expires, just can begin to take out natural gas.The speed of getting natural gas from buttery depends on that gas/water contacts the rising (GWC) of wave surface, and its value is by the determining positions of GWC.Take out natural gas from the top of buttery, and the bottom that its GWC position is represented is controlled with geophysical method.If imperceptible long seismism, available said method applies extra scavenging action.
Therefore, method of the present invention can solve simultaneously and gather, and collects and storage problem, and all carries out in the most close natural gas user's place.
Claims (7)
1. method of natural gas being supplied with the user, comprise the following steps: to build a storage vault, it is full of and gives the user with natural gas natural gas transport, it is characterized in that described storage vault be built in contain the saturated air water layer above, with describedly containing that the saturated air water layer periodically applies external action and the natural gas that produces is filled the storage vault of construction like this by giving, and be built in zone, the transportation that can also save natural gas near the natural gas user.
2. method according to claim 1 is characterized in that acting on the periodic external action that contains the saturated air water layer and applies by elastic vibration.
3. method according to claim 1 is characterized in that being positioned at the described storage vault that contains above the saturated air water layer and is built in the area that can obtain nature or artificial source of elastic vibrations.
4. method according to claim 1 is characterized in that acting on the described external cycles effect that contains on the saturated air water layer and realizes by pressure reduction is provided.
5. method according to claim 1 is characterized in that acting on the described external cycles effect that contains on the saturated air water layer and realizes by intensification.
6. method according to claim 1 is characterized in that acting on and contains the above the external cycles effect of saturated air water layer and apply by means of electromagnetic field.
7. method according to claim 1 is characterized in that containing the above the external cycles effect of saturated air water layer be by two or more described effect key elements that apply, as producing elastic vibration, provide pressure reduction, heats up and apply electromagnetic field to unite and apply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113093 CN1032079C (en) | 1992-10-12 | 1992-10-12 | Method of supplying gas to gas consumeng |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113093 CN1032079C (en) | 1992-10-12 | 1992-10-12 | Method of supplying gas to gas consumeng |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1084935A CN1084935A (en) | 1994-04-06 |
| CN1032079C true CN1032079C (en) | 1996-06-19 |
Family
ID=4946233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113093 Expired - Fee Related CN1032079C (en) | 1992-10-12 | 1992-10-12 | Method of supplying gas to gas consumeng |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032079C (en) |
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1992
- 1992-10-12 CN CN 92113093 patent/CN1032079C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1084935A (en) | 1994-04-06 |
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