CN101292011A - Apparatus, system, and method for in-situ extraction of oil from oil shale - Google Patents
Apparatus, system, and method for in-situ extraction of oil from oil shale Download PDFInfo
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- CN101292011A CN101292011A CNA2006800339531A CN200680033953A CN101292011A CN 101292011 A CN101292011 A CN 101292011A CN A2006800339531 A CNA2006800339531 A CN A2006800339531A CN 200680033953 A CN200680033953 A CN 200680033953A CN 101292011 A CN101292011 A CN 101292011A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimizing the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimizing the spacing of wells comprising at least one inclined or horizontal well
Abstract
An apparatus, system, and method are disclosed for in-situ extraction of oil from oil shale. The method comprises drilling a fluid conduit (114) in fluid communication with a top and a bottom of a target zone (210) within an oil shale formation. The method includes stimulating the target zone (210). The method further includes injecting a heated fluid (122) into the bottom of the target zone (210) such that the heated fluid (122) entrains the kerogen within the target zone (210) into the injected fluid (122) to generate a production fluid (126). The method concludes with producing the production fluid (126), containing the in-situ kerogen, from the top of the target zone (210) to the surface.
Description
Technical field
The present invention relates to the production of resinous shale PetroChina Company Limited., especially from on-the-spot oil shale layer, extract kerogen.
Background technology
Oil in the resinous shale is one of maximum at present unemployed fossil fuel sources.Conventional produce oil method can not obtain oil from resinous shale, this is because the oil in the resinous shale is stored with kerogenic form, can not flow out from oil shale layer.Kerogen is the high-molecular weight carbohydrate, decomposes with before breaking away from from the rock stratum at it, needs the temperature more than 300 degrees centigrade.
The common process that recovers the oil from resinous shale is also uneconomical, requires the shale bed that high oil-contg is arranged, and makes oil price high.Between 10～60 gallons of oil of shale bed per ton, and that most of conventional oil production technology only reaches more than 25 gallons at shale bed per ton oil-containing is just lucrative, means that many rock stratum are not suitable for exploiting with these methods such as, the oil shale deposit thing in the eastern Utah State.Therefore, commercial resinous shale production still is not suitable for large scale mining.
One of example of traditional resinous shale produce oil technology be Shell exploitation situ conversion process (in-situ conversion process) (ICP).In the ICP process, bore many mouthfuls of wells around in the purpose zone, form around being able in the purpose zone by these well circulating frozen agent ice-boundly, enter the purpose zone to stop local water.Then, open Liang Koujing at purpose zone central authorities brill.Water in the purpose zone extracted out go, lay electric heater in a bite well therein, and after it is heated, with the oil extraction in other a bite well.
The ICP technology comprises the ultimate principle of recover petroleum from resinous shale.At first, the water in the purpose zone must be discharged from or displacement reaches desirable value with the temperature that allows the purpose zone.Then, before can being extracted, oil needs a large amount of heat energy.The shortcoming of ICP technology is that many mouthfuls of wells are bored in requirement, and comprises the loss of pump and the freezing requirement of well.
The example of the resinous shale produce oil technology that another is traditional is band production practice (strip miningprocess).Oil shale layer is exploited, and a large amount of resinous shale need be handled to extract kerogen in the top layer.Though this technology is simple, it brings many environmental problems that must solve.At first, itself has changed landforms to a great extent the band exploitation, and use it for anything else in addition need be for many years on these ground.The second, even after having extracted kerogen, still may containing, a large amount of resinous shale materials has oil and other chemical residue of handling problems.
The example of the resinous shale produce oil technology that another is traditional is underground pillars of a house production practice (underground room and pillar mining process).This technology costliness, and the original place is that production room stays a large amount of kerogens.This technology only is only economic technology when shallow resinous shale (be below about 1000 feet dark), requiring minimum formation thickness is 50～100 feet.In this production practice, need to handle a large amount of resinous shale equally.
From aforementioned discussion, need significantly a kind of from resinous shale the equipment of extract oil, system and method economically.A kind of like this equipment, system and method will help situ extraction of oil from resinous shale, and make the efficient of the necessary a large amount of heat energy of extract oil from resinous shale reach maximum.
Summary of the invention
The present invention be directed to present state of art exploitation, especially at the problem that still can not solve fully by present available resinous shale extraction system in this field with need and exploitation.Thereby the present invention is developed provides a kind of equipment from the resinous shale extract oil, system and method, such equipment, system and method can overcome many or all shortcomings discussed above in this area.
A kind of equipment from the resinous shale extract oil is disclosed.This equipment comprises drilling unit (drillingunit), and this drilling unit is used for the drilling well and communicates with top and bottom flow with oil shale layer purpose zone.This equipment also comprises being provided with makes the regional stimulation module of increasing production (stimulation module) of purpose.This equipment also comprises being provided with substantially locatees the well completion unit (completion unit) of injection tube and the injection unit (injectionunit) that injects fluid in the purpose zone is set in bottom, purpose zone.The injection unit can be provided with and inject fluid into the purpose zone, so that the free water in the fluid displacement purpose zone.The fluid that is injected can be commercial natural gas and/or come the Sweet natural gas of the extraction of artesian well.
This equipment comprises hot supply unit, and this hot supply unit is provided to heating fluid, so that heating fluid is taken away on-the-spot kerogen to form extraction fluid (production fluit).Hot supply unit can be arranged in surface layer solar collector and/or gas burner heating fluid.Hot supply unit comprises downhole burner (downhole burner), and this downhole burner is provided to the fluid in the heated well, and can not introduce combustion by-products to fluid.In one embodiment, this equipment comprises cycling element, so that fluid cycles through offset well (offset well) with preheating fluid before with hot supply unit heating fluid.
This equipment also comprises it can being that the extraction module of pipe is to produce the extraction fluid.This equipment comprises processing module, and this processing module is provided to the extraction fluid is heated to target temperature, then adds Sweet natural gas so that Fu Qing to be provided (excess hydrogen) as needs, and the extraction fluid is reacted on catalyticreactor.Like this, processing module can be littler, as to have more commercial value hydrocarbon with the hydrocarbon pyrolysis of extraction fluidic.
Stimulation module can further dispose and make the volume increase of second purpose zone, and this second purpose zone can be positioned in well than higher position, the first purpose zone.Well completion unit can be provided with substantially at location, bottom, second purpose zone injection tube.This equipment also comprises isolated location (isolation unit), and this isolated location is provided to make the well and the first purpose zone isolation.Injecting the unit can further be provided to fluid is injected into the second purpose zone.Hot supply unit can further be provided to heating fluid, so that the energy of heating fluid is taken away on-the-spot kerogen in the second purpose zone to form the extraction fluid.
A kind of method from the resinous shale extract oil is disclosed.Present method can comprise that the drilling well is to communicate with the top and the bottom flow in purpose zone.Well can comprise flatly or many mouthfuls of wells, and well can be perpendicular hole or horizontal well.This method also comprises makes the volume increase of purpose zone, and substantially at the location, bottom in purpose zone injection tube.This method also comprises fluid is injected into the purpose zone, and heating fluid is so that heating fluid is taken away on-the-spot kerogen to form the extraction fluid.This method can comprise production extraction fluid.This method to be being heated to target temperature with the extraction fluid, and in catalyticreactor, handle the extraction fluid with the kerogenic molecular-weight average that reduces to take away as end.This method also comprises Sweet natural gas joined the extraction fluid, so that there is a small amount of hydrogen to be used in reaction in the catalyticreactor.
In one embodiment, this method comprises substantially at the top in purpose zone location extraction pipe, and wherein production extraction fluidic step comprises the extraction fluid is flow on the extraction pipe.This method comprises that passing oil shale layer is provided with production casing (production casing), is punching, punching to production casing substantially to production casing near the bottom in purpose zone substantially near the top in purpose zone.In comprising the method for production casing, the step of location injection tube also is included in location injection tube in the production casing, and production extraction fluidic step can comprise making and flows through the ring that is formed between production casing and the injection tube on the extraction fluid.Make and flow through the step that is formed on the ring between production casing and the injection tube on the extraction fluid and be included in the ring location extraction pipe, and the extraction fluid upper reaches extraction pipe that makes production.
A kind of system from the resinous shale situ extraction of oil is disclosed.This system comprises triphase separator and fluid coupling (fluid coupling), wherein triphase separator is provided to product fluid is separated into oil, water and Sweet natural gas, and fluid coupling is provided to isolated water is delivered to water treatment system, isolated oil is delivered to oily storage facilities, and isolated Sweet natural gas is delivered to the Sweet natural gas storage facilities.This system also comprises the drilling unit, and described drilling unit is used for the drilling well to communicate with the top and the bottom flow in the purpose zone of oil shale layer.This system also comprises the stimulation module that is provided to make the volume increase of purpose zone.This system further comprises well completion unit and injects the unit that wherein well completion unit is provided to locate injection tube in the bottom in purpose zone substantially, is provided to inject fluid into the purpose zone and inject the unit.Inject the unit and be provided to inject fluid into the purpose zone, so that the free water in the fluid displacement purpose zone.The fluid that is injected can be commercial natural gas and/or come the Sweet natural gas of the extraction of artesian well.
This system also comprises it can being that the extraction module of pipe is with production extraction fluid.This system comprises processing module, and this processing module is provided to the extraction fluid is heated to target temperature, then adds Sweet natural gas so that Fu Qing to be provided if needed, and the extraction fluid is reacted in catalyticreactor.Therefore, processing module can be littler, as to have more commercial value hydrocarbon with the hydrocarbon pyrolysis of extraction fluidic.This system also comprises condensation module, and this condensation module is provided to cool off reacted extraction fluid, and the refrigerative fluid is transported to triphase separator.
Run through of the explanation of this specification sheets to feature, advantage, or similar language throughout do not show all feature and advantage that available the present invention realizes should or just in any single embodiment of the present invention.On the contrary, the language that feature and advantage are described should be understood to mean, and the special characteristic, advantage or the characteristic that are described with respect to certain embodiment can be included at least one embodiment of the present invention.Therefore, it is passable to run through discussion and similar language throughout that this specification sheets carries out feature and advantage, but not necessary, refers to same embodiment.
And described feature of the present invention, advantage and characteristic can be combined in one or more embodiments in any suitable way.Those skilled in the relevant art it should be understood that the present invention can be implemented as one or more specific feature or the advantage with specific implementations.In other cases, can have supplementary features and the advantage that in all of the embodiments of the present invention, does not occur in some embodiments.
From the following description and the appended claims, these feature and advantage of the present invention will become more apparent, maybe can obtain understanding by implementing after this illustrated the present invention.
Description of drawings
In order to make advantage easy to understand of the present invention, existing specific implementations by middle explaination with reference to the accompanying drawings comes the present invention of above simple description is made more detailed description.What should be understood that these figure describe only is exemplary embodiment of the present invention, and therefore can not be considered to limit the scope of the invention, and will describe and explain the present invention with supplementary features and details by using accompanying drawing, wherein:
Fig. 1 describes to be used for from the schematic block diagram of an embodiment of the system of resinous shale extract oil according to of the present invention;
Fig. 2 is the schematic block diagram of an embodiment of at least one fluid circuit that is described to the bottom in the top in purpose zone of oil shale layer and purpose zone;
Fig. 3 is a schematic block diagram of describing an embodiment of treatment in accordance with the present invention module;
Fig. 4 is the schematic block diagram of describing according to an embodiment of downhole burner of the present invention;
Fig. 5 is illustrating according to an embodiment in the second purpose zone of the present invention;
Fig. 6 be describe according to of the present invention to the purpose zone the top and the schematic block diagram of alternative embodiment of at least one fluid circuit of bottom;
Fig. 7 is a schematic block diagram of describing to come according to the present invention an embodiment of heat hydrocarbon gas;
Fig. 8 A is the schematic block diagram of describing according to an embodiment of first and second lateral segments of the present invention;
Fig. 8 B is the schematic block diagram of describing according to alternative embodiment of first and second lateral segments of the present invention;
Fig. 9 is the schematic block diagram of describing according to an embodiment of first, second and the 3rd lateral segment of the present invention;
Figure 10 A is illustrating according to well spacing of the present invention;
Figure 10 B is illustrating according to alternative well spacing of the present invention;
Figure 11 is a heavy hydrocarbon the illustrating of thermodynamic equilibrium that does not have under the hydrogen-rich situation;
Figure 12 is a heavy hydrocarbon illustrating of thermodynamic equilibrium under the hydrogen-rich situation;
Figure 13 is used for from the indicative flowchart of the method for resinous shale extract oil according to of the present invention;
Figure 14 A is used for from the indicative flowchart of the method for the resinous shale extract oil that comprises the first and second purpose zones according to of the present invention;
Figure 14 B is used for from the indicative flowchart of the method for the resinous shale extract oil that comprises the first and second purpose zones according to of the present invention;
Figure 15 A is used for from the indicative flowchart of the method for resinous shale extract oil according to of the present invention, and this method comprises bores at least one lateral segment; And
Figure 15 B is used for from the indicative flowchart of the method for resinous shale extract oil according to of the present invention, and this method comprises bores at least one lateral segment.
Embodiment
To be readily appreciated that, and can arrange and design of the present invention by multiple different configuration as the parts of describe, in general terms and explanation in the accompanying drawings here.Therefore, below to the more detailed description of equipment of the present invention as that showed in Figure 15 B at Fig. 1, system and method and do not lie in restriction scope of the present invention as requested, and only be to embody the selected embodiment of the present invention.
Run through this specification sheets employed " embodiment " or " embodiment " and be meant that the special characteristic of described description, structure or characteristic are included at least one embodiment of the present invention in conjunction with the accompanying drawings.Therefore, run through this specification sheets, the short speech " embodiment " or " embodiment " that occur at different positions may not all refer to same embodiment.
And described feature, structure or characteristic can be combined in one or more embodiments in any suitable way.In the following description, provide a large amount of details, such as the example of material, fastening piece, size, length, width, shape etc. so that the thorough understanding to embodiment of the present invention to be provided.Yet, those skilled in the art will appreciate that the present invention can be embodied as and do not have in the detail one or more, maybe can have additive method, parts, material etc.In other cases, do not show in detail or description known configurations, material or parts, to avoid fuzzy aspect of the present invention.
Fig. 1 describes according to of the present invention to be used for from the schematic block diagram of an embodiment of the system 100 of resinous shale extract oil.System 100 comprises the triphase separator 102 that is provided with extraction fluid separation one-tenth oil, water and Sweet natural gas.System 100 also comprises fluid coupling 104, and this fluid coupling 104 is provided to isolated water is delivered to water treatment system 106, isolated oil is delivered to oily storage facilities 108, and isolated Sweet natural gas is delivered to Sweet natural gas storage facilities 110.
The injection pressure of displacement free water is measured at depth of stratum (formation depth) (" down-hole pressure ").Those skilled in the art should be able to estimate, estimates down-hole pressure by wellhead pressure, and is perhaps little and need require more split hair caccuracy than the well head estimation time when the pressure reduction of frac pressure in the stratum and formation fluid pressure, a kind of testing pressure down hole device of placement in the stratum.
In for some time, heating fluid 122 is taken away on-the-spot kerogen.Fluid 122 begins to heat the stratum from well 114 out to the purpose zone 210 on stratum.After for some time, kerogen decomposition breaks away from resinous shale, and is brought in the fluid 122, to form extraction fluid 126.At last, the kerogen in processed whole purpose zone 210 is exhausted substantially by injecting fluid 122, and the oil length of extraction fluid 126 drop to further operating system 100 with no longer cost-effective that value of extract oil from resinous shale till.
At an example that is used for the general guide meaning, with the methane under 400 degrees centigrade as heating fluid 122, inject fluid 122 with 2300 cubic feet of per minutes, estimates in 1 year can be from the well 114 of 0.72 acre of oil extraction area from the on-the-spot kerogen of 100 feet regional extraction about 60% of thick purpose.Precise dose, rate of injection and exhausted time-dependent are in the feature on stratum and the kerogen in the stratum separately, and in view of disclosed the present invention herein, in the technical scope to calculating those skilled in the art of the concrete cost of drilling, heating and withdrawn fluid 122.
In general, the temperature below 300 degrees centigrade can not make kerogen decomposition and take away kerogen, unless in the low-down oil shale layer of kerogenic therein molecular weight.Therefore but system's 100 preferably fluids are being operated under the condition more than 300 degrees centigrade.May make fluid temperature (F.T.) be higher than 400 degrees centigrade such as zone of interest from the economic consideration of estimated time of exploiting exhaustion, make most of kerogen be decomposed and take away.Can determine the economy of the given embodiment of system 100 by the core sample of test oil shale formation, and in those skilled in the art's skill scope.
Sweet natural gas storage facilities 110 can be provided with to natural gas burner 134 and Sweet natural gas is provided, may provide Sweet natural gas to injecting unit 120 by heat exchanger 138, and Sweet natural gas is provided for processing module 128.Sweet natural gas storage facilities 110 can be connected with external air source by control valve 142, and the gas that receives external air source can be set or with excessive extraction gas delivery to external air source.
Fig. 2 is the schematic block diagram of an embodiment of at least one fluid circuit 114 that is described to the bottom in the top in purpose zone of oil shale layer and purpose zone, and wherein at least one fluid circuit among Fig. 2 comprises well 114.Feature shown in Figure 2 has only shown functional relationship, and not drawn on scale.For example, 212 the degree of depth can be from changing to several thousand feet near the top layer from the top layer to the oil shale layer.Well 114 comprises well head 202, and this well head 202 is provided to allow fluid to drive from well 114 injections and row, and contains any pressure of well 114.Well 114 can be formed into oil shale layer 212 purpose zone 210 the top fluid circuit 204 and to the fluid circuit 206 of the bottom in the purpose zone 210 of oil shale layer 212.
Well 114 comprises extraction module 216, is used to produce extraction fluid 126.Extraction module 216 can be the extraction pipe 216 that places 210 tops, purpose zone substantially.Say ideally, extraction module 216 will be at the top in purpose zone 210 from purpose zone 210 actuating fluid, but the design consideration of system 100 and physical condition restriction can require extraction module 216 under the situation of not damaging function of the present invention from more than the top in purpose zone or following actuating fluid.
For example, if do not use expensive well logging instrument (logging tool) to come the end of mounting pipe 216 in the deep-well, the end of extraction pipe 216 can not accurately be installed in several feet scopes so.The present invention does not require and solves such error.In another example, system 100 can so design and make the second purpose zone (referring to Fig. 5) to finish on the first purpose zone 210 in back for some time.In such example, the installation of extraction pipe 216 can be more than 210 tops, purpose zone or following 10 feet places, to allow isolating the first and second purpose zones with cement plug or other partition method.These allow be in purpose zone 210 top actual installation within the blank of reserving behind the extraction pipe 216.
In one embodiment, fluid 122 is included in the fluid of top layer heating, and injection tube 218 comprises vacuum insulation pipe (vacuum insulated tube).The k-factor of vacuum insulation pipe is 0.006-0.02BTU/hr-ft-degF, or is lower than about 5000 times of the standard production steel pipe k-factor.Fluid 122 can pass through gas-firing (134,132,138), solar collector 136 on the top layer, and/or by making fluid 122 heat (see figure 7) by contiguous exhausted well recirculation.
Well 114 comprises upper isolation layer 222, and this upper isolation layer 222 is provided to be used for stop extraction pipe 216 back are exposed to extraction fluid 126.222 pairs of proper function of the present invention of upper isolation layer are not necessary, but in some specific exampless, upper isolation layer 222 need be used for protecting extraction pipe 216, in order to avoid be exposed in the pollutent.
The embodiment of Fig. 2 has illustrated open hole completion (open-hole comlpetion), or producing oil well 114, and does not have sleeve pipe to pass through purpose zone 210.Well 114 can be a bite cased well (cased well), as the embodiment of the well 114 of Fig. 6 explanation.
Fig. 3 is a schematic block diagram of describing an embodiment of treatment in accordance with the present invention module 128.Processing module 128 is provided to be used for extraction fluid 126 is heated to target temperature, and the extraction fluid is reacted in catalyticreactor 302.This has reduced the kerogenic molecular-weight average that carries in the extraction fluid 126.Though the kerogen that is extracted can also produce a large amount of Sweet natural gases, contain one in general in each molecule of Sweet natural gas to four carbon atom, the carbon number of typical kerogenic each hydrocarbon molecule exceeds 20.The hydrocarbon of about 10 carbon atoms of each molecule generally has more the commercial value height than the macromole hydrocarbon that each molecule is higher than 20 carbon atoms.
In one embodiment, the Sweet natural gas 304 that processing module 128 receives from Sweet natural gas storage facilities 110, gas-firing in burner 306, and in the heat exchanger 308 that burning gas 310 is housed, heat extraction fluid 126.The amount for the treatment of incendiary gas 304 depends on the efficient and the target temperature of energy, burner 306 and heat exchanger 308 in the amount of extraction fluid 126 and thermal capacitance, the gas 304.Transmitter and controller that realization adds thermal control are known in the art, therefore no longer narrate in order to avoid obscure with the present invention here.
Before extraction fluid 126 was handled in catalyticreactor 302, processing module 128 can comprise that cleaning is from the pollutent in the extraction fluid 126.The pollutent that is present in the extraction fluid 126 comprises sulfocompound, nitrogenous compound and heavy metal and metal complex, such as arsenic.Cleaning can be carried out before or after extraction fluid 126 heats in heat exchanger 308, but separated the load that can alleviate heat exchanger 308 before heating.Existing various cleaning systems in the technology.
When cracking macromole hydrocarbon becomes than the small molecules hydrocarbon, excessive available hydrogen have a generation that is beneficial to the less hydrocarbon molecule of thermokinetics product.For guaranteeing that thermokinetics helps the generation of small molecule hydrocarbon, do not comprise at extraction fluid 126 under the situation of enough methane and other light hydrocarbon gas, before extraction fluid 126 heated in heat exchanger 308, processing unit 128 can add Sweet natural gas 304 in the extraction fluid 126 to.In one embodiment, be at least one to the optimum proportion of the free methane of each big hydrocarbon molecule, perhaps the massfraction of methane is 5%.The ratio of embodiment can change according to composition, extraction fluid 126, target temperature and catalyst type and the loadings in reactor 302 thereof of available Sweet natural gas 304, and can be calculated by those of skill in the art based on contemplated embodiment and data disclosed herein.
Fig. 4 is the schematic block diagram of describing according to an embodiment of downhole burner 402 of the present invention.Hot supply unit 124 comprises downhole burner 402, and this downhole burner 402 is provided to be used to be heated to the interior fluid 122 of at least one fluid circuit (well 114) of 210 bottoms, purpose zone.Downhole burner 402 can be at well 114 internal combustion heating fluids 404.Heating fluid 404 can comprise the mixture of Sweet natural gas and oxygen (or air).Burner 402 can transmit heating fluid 406 after the burning with the fluid 122 in the heating injection tube 218 by heat exchange gas 408.
The use of downhole burner 402 can combine with the top layer heating of pipe line fluid 124 and/or vacuum insulation pipe 218.If without limits, especially be fit to combine, as the recirculation of using and pass through the offset well (see figure 7) of solar collector 136 with passive heating mechanism.In one embodiment, most of injection tubes 218 comprise the vacuum insulation pipe, and the tube portion that is exposed to heat exchanger 408 comprises standard pipe.
Fig. 5 is illustrating according to an embodiment in the second purpose zone 502 of the present invention.Stimulation module 116 can further be provided with 514 volume increase that make the second purpose zone 502, and well completion unit 118 can further be provided with substantially at the location, bottom in the second purpose zone 502 injection tube 218.System 100 also comprises a kind of isolated location (not providing), is used to make the part with second purpose zone, 502 fluid communication with parts 504 first purpose zone, 210 fluid communication and fluid circuit 114 fluid circuit 114 to keep apart.Isolated location can comprise a kind of well cementation unit (cementing unit) that is provided to be used to place cement plug 504, and/or a kind of well completion unit 118 that is used to place bridging plug 504.
Inject unit 120 and fluid 122 can be injected into the second purpose zone 502.Hot supply unit 124 heating fluids 122 are so that the energy of heating fluid 122 can carry kerogen to produce extraction fluid 126 in fluid 122.
In the example of Fig. 5, well completion unit 118 can be provided to be used to isolate 522, the well on the extraction pipe 216 and the second purpose zone 502 is separated, and be used to isolate 520, injection tube 218 and extraction pipe 216 are separated the second purpose zone 502 so that injection fluid 122 is flowed through.Injection tube 218 can be provided in the top of sealing coat 222 or below be that fluids 122 are injected in first purpose zone 210.What provide in the example is that injection tube 218 injects fluid 122 below the sealing coat 222 of front.
Fig. 6 be describe according to of the present invention to purpose zone 210 the top and the schematic block diagram of alternative embodiment of at least one fluid circuit 114 of bottom.The main difference of embodiment is among Fig. 6 and Fig. 2, the embodiment of Fig. 2 is an open hole completion, and the embodiment of Fig. 6 is the cased hole completion 602 that is provided with in purpose zone 210, and wherein, fluid circuit 114 comprises by sleeve pipe 602 to the fluid communication between 210 tops, purpose zone and the bottom and (and supports cement layer, if any) and enter the perforation 204,206 in purpose zone 210.
In the embodiment of Fig. 6, stimulation module 116 can comprise fluid power pressure break unit, and this fluid power pressure break unit is provided to be used for pressure break purpose zone 210, and suppresses fluid 122 inflow purpose zones 210.Stimulation module 116 can comprise explosive release.
In the embodiment of Fig. 6, in the time that stimulation module 116 comprises explosive release, system 100 can be configured such that drilling unit 112 is by purpose zone 210 drillings, stimulation module 116 makes 210 volume increase of purpose zone by blast, well completion unit 116 is passed purpose zone 210 and is placed sleeve pipe 602, fixed sleeving 602, and form the perforation 204,206 that passes sleeve pipe 602.In this example, stimulation module 116 can further be provided with to make near well 210 volume increase of purpose zone perforation 204,206 is connected to the purpose zone 210 of volume increase.Volume increase near well can relate to fluid power fracture treatment, matrix acidifying processing or other similar treatment process once more perforation 204,206 is connected to the purpose zone 210 of previous pressure break.
Fig. 7 is the schematic block diagram of describing according to an embodiment of heating fluid 122 of the present invention.System 100 can comprise the cycling element (not shown), is used to make fluid 122 to circulate by near the offset well 702 the extraction well 114.Offset well 702 can comprise it may being the exhaustion district 704 in a zone in the exhausted oil shale layer 212 of oil gas or kerogen.As employed here, adjacent showing is flatly relevant with exhaustion district 704 well, and exhausted district 704 is irrelevant with the purpose zone 210 that plan is recovered the oil.The well relevant with purpose zone 210 can be called producing oil well.Offset well can be producing oil well contiguous well, pass completely through on-the-spot well from producing well, or the horizontal branch that separates in the producing oil well, horizontal branch that wherein separates and exhausted district 704 fluid communication, but with purpose zone 210 fluid isolation, except that the plan from injecting unit 120 of heating fluid 124 is carried.
After by the offset well circulation, fluid 122 can further be heated or be injected into unit 120 and inject in system 100.It is many that substrate temperature in the stratum 704 exceeds the environment skin temperature usually, can save the heat energy cost greatly by heating fluid 122 according to Fig. 7 embodiment.
Fig. 8 A is the schematic block diagram of describing according to an embodiment of first lateral segment 802 of embodiment of the present invention and second lateral segment 804.Lateral segment 802,804 can have the many identical characteristics with Fig. 2 and the described perpendicular hole of Fig. 6, comprises function and other characteristics of stimulation module 116.Therefore, the expansion that the description of Fig. 8 A should be described as those figure and browsing, and some differences that only need to give prominence to are the embodiments that utilize one or more snippets lateral segment that can occur in the present invention.
At least one fluid circuit 114 can comprise first lateral segment 802 and second lateral segment 804.First lateral segment 802 can with the top fluid communication in purpose zone 210, second lateral segment 804 can communicate with the bottom flow in purpose zone 210.System 100 can comprise injection tube 218 that is positioned at 210 bottoms, purpose zone substantially and the flow string 216 that is positioned at 210 tops, purpose zone substantially.
The first purpose zone 210 can comprise the horizontal clearance that is equal to first purpose zone 210 thickness (highly).Such parameter is supposed to, because be injected into the fluid 122 in the first purpose zone 210 generally propagates with normal distribution curve in purpose zone 210 at injection tube 218, (see figure 10) when fluid 122 flows to the height in purpose zone 210, the horizontal clearance that reaches almost equates with the height in purpose zone 210.
Yet specific examples can be different greatly with this total guidance.For example, the horizontal length of first and second horizontal sections 802,804 can be 225 feet, and the height in purpose zone 210 can be 100 feet.In this example, oil shale layer 212 is divided into two 112.5 feet purpose zone 210,502, does not stay untreated oil shale layer, than two purpose zones 210,502 of 100 feet, the oil shale layer that stays 25 feet is untreated, and higher oil recovery is arranged.In another example, the horizontal length of first and second horizontal sections 802,804 can be 200 feet, and the height in purpose zone 210 can be 100 feet.For the purpose of example, if the oil-contg on stratum 212 is high relatively, and oily price is high relatively, and completion is lower than the cost of the purpose zone increase recovery ratio of weak point than passing through use with the cost of adopting the attached purpose zone in stratum 212.Therefore, along horizontal section 802 transverse axis oil shale layer 212 is divided into three purpose zones 210,502, (not having among the figure), 804 are divided into two purpose zones 210,502 of 100 feet than well 114 better recovery ratio.
The local recovery ratio bigger than purpose region height at the purpose peak width is low, but production cost is low.The local recovery ratio height that the width in purpose zone is littler than purpose region height, but production cost height.The selection of carrying out purpose zone 210,502 length along the horizontal section 802,804 of well is similar to the accuracy of measuring economic well spacing in perpendicular hole 114 examples that the back will discuss.Within consideration those skilled in the art's of these economic aspects the technical scope, based on production cost, the oil-contg on the specific examples of these costs and system 100, stratum 212 and disclosed here, comprise that with reference to Figure 10 A and 10B part to be discussed relevant, determine the distance in best purpose zone 210,502.
Fig. 8 B is the schematic block diagram of describing according to alternative embodiment of first and second lateral segments 802,804 of the present invention.Fig. 8 B has introduced an embodiment, and wherein first lateral segment 802 and first mouthful of well 114 are associated, and second horizontal well 804 and second mouthful of well 810 are associated.The information relevant with Fig. 8 A is applied in the embodiment of Fig. 8 B, does not include here in order to avoid unnecessary repetition.
Fig. 9 is the schematic block diagram of describing according to an embodiment of first, second and the 3rd lateral segment 802,804,902 of the present invention.The example of Fig. 9 can utilize this two purpose zones 210,502 of three lateral segments, 802,804,902 exploitations, and wherein arrange in vertical direction in purpose zone 210,502, and promptly a purpose zone is on another purpose zone.In the example of Fig. 9, drilling unit 112 also is provided to the 3rd horizontal section 902 that the drilling fluid is connected to the top in the second purpose zone 502.
First horizontal section 802 can communicate with the bottom flow in the second purpose zone 502.Stimulation module 116 can make 502 volume increase of second purpose zone.Well completion unit 118 can be substantially at the location, bottom in the second purpose zone 502 injection tube 218.Inject unit 120 and fluid 122 can be injected into the second purpose zone 502.Hot supply unit 124 heating liquids 122 are so that the fluid of heating is taken away on-the-spot kerogen to form extraction fluid 126 from the second purpose zone 502.The isolated location (not shown) also is provided to make fluid circuit 114 and first purpose zone 210 to isolate, for example by cement plug and/or bridging plug are installed in second horizontal section 804.Extraction module 216 can be provided to be used to form extraction fluid 126.
210 and the second purpose zone 502, first purpose zone can form with Fig. 8 A description and the similar fashion shown in the example, wherein injection tube 218 is positioned at the bottom in the 210 and/or second purpose zone 502, first purpose zone substantially, extraction pipe 216 or sleeve pipe 602 intra-annular stream districts receive the fluid 122 at 502 tops, first purpose zone, 210 and/or second purpose zone substantially.Each purpose zone 210,502 can axially be divided into the attached purpose zone, sees shown in Fig. 8 A.In further embodiment, further configuration-system 100, when the first purpose zone 210 is exhausted substantially, produce the second purpose zone 502.
Even person of skill in the art will appreciate that inject that unit 220, injection tube 218 and the 216 appropriate combinations of extraction module will allow also can 210,502 oil recoveries in a plurality of purposes zone simultaneously in same well 114.Recovering the oil so simultaneously only is to implement a plurality of embodiment of the present invention simultaneously, and this also within the scope of the invention.
Figure 10 A is illustrating according to well spacing 1002 of the present invention.Figure 10 A has illustrated first mouthful of well 114 and second mouthful of well 1014, but the contiguous well in its resinous shale district.Well in Figure 10 A embodiment comprises the purpose area thickness (TZT) 1004 of 200 feet well spacing 1002 or horizontal branch and 100 feet.Injecting gas 122 is propagated by stratum 212 with the curve 1006,1008 that is about normal distribution, and the half-breadth of every curve at 210 tops, purpose zone is TZT1004 no better than.
Make a bet fashionablely at suitable pressure when fluid 122, the free water (if there is) in the propagation curve 1006,1008 in the purpose zone 210 are injected into fluid 122 displacements, and can realize the heating in purpose zone 210.Injecting gas 122 districts of propagation curve more than 1006,1008 are main districts that kerogen is extracted from purpose zone 210, and here phase closing well 114,1014 will be from producing here.How related each other with propagation curve 1006 on the propagation curve 1006 among Figure 10 by example illustration purpose zone 210 of purpose zone 210 eclipsed.
In the embodiment of Figure 10 A, produce oil-poor district 1010 between first well 114 and second well 1014, this is because the shape 1006,1008 that gas is propagated is passed through stratum 212.Yet the well spacing 1002 of the example of Figure 10 A is be sure of seldom or is not had stratum 212 can surpass a bite well to recover the oil because here between first propagation curve 1006 and second propagation curve 1008 seldom or do not have overlapping.Well spacing 1002 among Figure 10 A will be optimized the drilling well and the cost for oil production of every oil recovery unit.The well spacing 1002 of Figure 10 A can be expressed as: S=2.0*TZT, here S equals well spacing.In one embodiment, the well spacing 1002 of Figure 10 A is suitable, in the economy of this drilling well and cost for oil production decision systems 100.
Figure 10 B is illustrating according to alternative well spacing 1002 of the present invention.Figure 10 B has illustrated first mouthful of well 114 and second mouthful of well 1014, and it can comprise the contiguous well in the resinous shale district.Well in Figure 10 B embodiment comprises 50 feet well spacing 1002 and 100 feet TZT1004.
In the embodiment of Figure 10 B, produce oil-poor district 1010 between first well 114 and second well 1014, this is because the shape 1006,1008 that gas is propagated is passed through stratum 212.Oil-poor district 1010 in Figure 10 B embodiment is significantly less than the oil-poor district in Figure 10 A embodiment.Produce rich oil district 1012 between first well 114 and second well 1014, this be since the shape 1006,1008 that gas is propagated by stratum 212 and near well 114,1014.The embodiment of Figure 10 B almost 212 has maximum efficient rate from the stratum, and when well 114,1014 drew closer together, output seldom reduced in the oil-poor district 1010, and the output in rich oil district 1012 increases greatly simultaneously.The well spacing of Figure 10 B embodiment can be expressed as: S=0.5*TZT.In one embodiment, the well spacing of Figure 10 B is suitable, and the wherein oil-contg height on stratum 212, and oil price has determined the economy of system 100.
Can be in the scope of art technology the given example of the present invention be decided the intermediate wells distance of the example of the example of Figure 10 A and Figure 10 B based on concrete economic factors.And, prior art also can simulate fluid propagate shape 1006,1008 to water horizontal well (referring to Fig. 8 A, 8B, 9) thus the selection of the size in the best purpose zone 210,502 of the given specific examples of decision the present invention.In some cases, well spacing 1002 is nearer than the example of Figure 10 B, may be suitable based on the concrete economic factors of the given specific examples of the present invention, and so well spacing within the scope of the invention.
Figure 11 is illustrating of the thermodynamic(al)equilibrium figure of heavy hydrocarbon under the situation that Fu Qing lacks.Pointed as Figure 11, heavier hydrocarbon compound, each molecule contain carbon number more than 30, are favourable under the condition that Fu Qing lacks.Figure 11 has illustrated that processing module 128 operation under the condition that Fu Qing lacks can not be cracked into less hydrocarbon molecule with most of stratum kerogen composition.
Figure 12 is illustrating of the thermodynamic(al)equilibrium figure of heavy hydrocarbon under the situation that Fu Qing exists.Pointed as Figure 12, lighter hydrocarbon compound, each molecule contains carbon number about 10, is favourable under the condition that Fu Qing exists.Significantly improving of lighter hydrocarbons productive rate is that hydro carbons just can obtain by the mixing of Figure 12 explanation more than 65 degree, and Figure 12 shows that Fu Qing helps the generation of lighter hydrocarbons under all reasonable operation temperature condition.Yet the reaction kinetics of pyrolyze heavy hydrocarbon shows that the temperature of catalyticreactor 302 need be more much higher than the thermodynamic temperature that helps the lighter hydrocarbons output.
During hydrocarbon cracking required accurate temperature under the acceptable response speed is economically depended on the flow velocity that kerogenic composition in the extraction fluid 126, selected catalyzer, catalyticreactor physics constitute (reactor size, catalytic amount, granules of catalyst aperture) and extraction fluid 126.To the selection of target temperature, contain these determination techniques in the Technology.Temperature requirement to typical systems 100 is higher than 350 degrees centigrade.For nearly all catalyst system, prior art comprises some direct tests, can be used to the target temperature of determining that concrete extraction fluid 126 is formed.
The indicative flowchart here is logical flow chart basically.Just because of this, described order and the step indicated are indicative to specific examples of the present invention.Other step and method can obtain, their effect, logic or be extrapolated to a step or multistep or wherein a part of identical illustrated method that is equal to.In addition, the formula of employing and symbol are provided to explain the logic step of present method, and its understanding method is not limited to this.Although used different arrows and line in chart, its understanding is not limited thereto.In fact, some arrows or other connection can be used to unique logic flow of the method that indicates.For example, arrow can be represented uncertain time wait or the monitoring phase at interval between a plurality of steps of illustrated method.The order of the corresponding steps shown in addition, the order of occurrence of ad hoc approach can or can strictly not observed.
Figure 13 be according to of the present invention from resinous shale the schema of the method 1300 of extract oil.Method 1300 starts from at least one fluid circuit of drilling unit 112 drillings 1302 to oil shale layer 212 purposes 210 tops, zone and bottom.Stimulation module 116 can make 210 volume increase 1304 of purpose zone.Well completion unit 118 can be located 1306 injection tubes 218 substantially in the bottom in purpose zone 210, and locatees 1308 extraction pipes 216 substantially at the top in purpose zone 210.
Figure 14 A is of the present invention being used for from the schema of the method 1400 of the resinous shale extract oil that comprises the first and second purpose zones 210,502.Method 1400 starts from 112 drillings 1402 of drilling unit to the top in purpose zone 210 and at least one fluid circuit of bottom.Well completion unit 118 is passed purpose zone 210 and is placed 1404 extraction sleeve pipes 602, gives sleeve pipe 602 perforations 1406 at purpose 210 tops, zone and bottom.
Referring to Figure 14 B, method 1400 can be increased production 1,420 second purpose zones 502 with volume increase unit 116.The isolated location (not shown) can be isolated the first purpose zone 210.Well completion unit 118 can be installed 1424 injection tubes 118 in the bottom in the second purpose zone 502.Cycling element (not shown) offset well 702 convection cells 122 by exhaustion district 704 capable of circulation circulate 1426.Hot supply unit 124 can be by solar collector 136 and gas burner 134 heating 1428 fluids 122.Injection unit 120 can be annotated 1430 fluids 122 and enter the second purpose zone 502, and fluid 122 can heat and carry the kerogen in second purpose zone 502 therein, forms extraction fluid 126.Extraction pipe 116 can produce 1432 extraction fluids 126.
Figure 15 A is the schema of the method 1500 of extract oil from resinous shale.Method 1500 starts from drilling unit 112, first lateral segment 802 of drilling 1502 and the top fluid communication of target area 210, and second lateral segment 804 that communicates with the bottom flow in purpose zone 210 of drilling 1502.Method 1500 comprises that stimulation module 116 increases production 1504 purpose zones 210, and well completion unit 118 is installed injection tube 218 in 210 bottoms, purpose zone.
With reference to Figure 15 B, stimulation module 116 can be increased production 1,516 second purpose zones 502.Well completion unit 118 is installed 1518 injection tubes 218 in 502 bottoms, second purpose zone.Method 1500 comprises the isolated location (not shown) so that isolate 1520 with the fluid circuit of first purpose zone, 804 fluid communication with the fluid circuit of the second purpose zone, 802,902 fluid communication.
From aforementioned discussion, know very much the present invention can provide a kind of from resinous shale system, the method and apparatus of situ extraction of oil.The present invention provides energy efficient technology to produce oil in the mode of environment protection by utilizing not too expensive completion technique, has overcome some limitation of present technology.
The present invention can other particular forms implements and does not depart from spirit of the present invention.Described embodiment should be understood as that it is illustrative and not restrictive.Therefore, scope of the present invention is to be defined by described claim, rather than is defined by aforementioned specification.All all fall within the scope of the invention from the meaning of claims and Equivalent and the modification of scope.
Claims (36)
1. one kind is used for from the equipment of resinous shale extract oil, and described equipment comprises:
The drilling unit, it is provided to get at least one fluid circuit of the bottom in the top in purpose zone of oil shale layer and described purpose zone;
Stimulation module, it is provided to make the zone volume increase of described purpose;
Well completion unit, it is configured to substantially at the location, described bottom in described purpose zone injection tube;
Inject the unit, it is provided to inject fluid in the described purpose zone;
Hot supply unit, it is provided to heating fluid, so that the fluid removal kerogen of heating forms the extraction fluid; With
The extraction module, it produces described extraction fluid.
2. according to the described equipment of claim 1, wherein said injection unit also is provided to described fluid is injected into described purpose zone, so that the free water in the described purpose of the described fluid displacement zone.
3. according to the described equipment of claim 1, wherein said hot supply unit also is provided to heat described fluid, is higher than 300 degrees centigrade so that state the fluidic temperature in the place, described bottom in described purpose zone.
4. according to the described equipment of claim 1, wherein said hot supply unit also is provided to heat described fluid, is higher than 400 degrees centigrade so that state the fluidic temperature in the place, described bottom in described purpose zone.
5. according to the described equipment of claim 1, wherein said hot supply unit also is provided to heat described fluid at surface layer, and wherein said injection tube comprises the vacuum insulation pipe.
6. according to the described equipment of claim 5, wherein heat described fluid and comprise with at least one solar collector and heat described fluid at surface layer.
7. according to the described equipment of claim 5, wherein heat described fluid and comprise with natural gas burner and heat described fluid at surface layer.
8. according to the described equipment of claim 1, wherein said hot supply unit comprises downhole burner, and described downhole burner is provided to heat the described fluid in described at least one fluid circuit.
9. according to the described equipment of claim 1, also comprise processing module, described processing module is provided to described extraction fluid is heated to target temperature, and makes described extraction fluid react in catalyticreactor.
10. according to the described equipment of claim 9, wherein said target temperature comprises the temperature greater than 350 degrees centigrade.
11. according to the described equipment of claim 1, wherein said drilling unit comprises spiral tube drilling unit.
12. according to the described equipment of claim 1, wherein said stimulation module comprises explosive release.
13. according to the described equipment of claim 1, wherein said extraction module comprises the extraction pipe at the place, described top that is positioned at described purpose zone substantially.
14. according to the described equipment of claim 1, wherein:
Described purpose zone comprises the first purpose zone;
Wherein said stimulation module also is provided to make the volume increase of second purpose zone;
Wherein said well completion unit also is configured to locate described injection tube in the described bottom in the described second purpose zone substantially;
Described equipment comprises isolated location, and described isolated location is provided to make described at least one fluid circuit and the described first purpose zone isolation;
Wherein said injection unit also is provided to described fluid is injected into the described second purpose zone; And
Wherein said hot supply unit also is provided to heat described fluid, so that the fluidic energy of heating is taken away the on-the-spot kerogen in the described second purpose zone, forms described extraction fluid.
15. according to the described equipment of claim 14, wherein said isolated location comprises bridging plug or cement plug.
16. one kind is used for from the method for resinous shale extract oil, described method comprises:
Drilling is at least one fluid circuit of the bottom in the top in the purpose zone of oil shale layer and described purpose zone;
Make the zone volume increase of described purpose;
Substantially at the location, place, described bottom in described purpose zone injection tube;
Inject fluid into described purpose zone;
Heat described fluid, so that the on-the-spot kerogen of the fluid removal of heating forms the extraction fluid; And
Produce described extraction fluid.
17. in accordance with the method for claim 16, the described step that wherein injects fluid into described purpose zone also is included in to be higher than formation fluid pressure and to be lower than under the pressure of stratafrac pressure described fluid is injected in the described purpose zone, so that the free water in the described purpose of the described fluid displacement zone.
18. in accordance with the method for claim 16, also comprise: described extraction fluid is heated to target temperature, and in catalyticreactor, handles described extraction fluid to reduce entrained kerogenic molecular-weight average.
19. in accordance with the method for claim 18, also comprise: Sweet natural gas is added to described extraction fluid, so that there is a small amount of hydrogen to be used in reaction in the described catalyticreactor.
20. in accordance with the method for claim 16, also comprise substantially described top location extraction pipe, and wherein produce the described step of described extraction fluidic and comprise making and flow to described extraction pipe on the described extraction fluid in described purpose zone.
21. in accordance with the method for claim 16, comprise that also passing oil shale layer is provided with the extraction sleeve pipe, is giving described extraction well-cased perforating near the described bottom in described purpose zone, giving described extraction well-cased perforating substantially near the described top/bottom part in described purpose zone substantially, the described step of wherein locating described injection tube also is included in the described injection tube in location in the described extraction sleeve pipe, and wherein produces the described step of described extraction fluidic and comprise making and flow to the ring that is formed between described extraction sleeve pipe and the described injection tube on the described extraction fluid.
22. in accordance with the method for claim 21, wherein make and flow to the described step that is formed on the ring between described extraction sleeve pipe and the described injection tube on the described extraction fluid and comprise making and flow through described intra-annular extraction pipe on the described product.
23. in accordance with the method for claim 16, wherein said fluid comprises Sweet natural gas.
24. in accordance with the method for claim 23, wherein heating the described step of described fluidic comprises and being selected from by heating described fluidic step with solar collector and heating in the group that described fluidic step formed any one with the gas burner that the described extraction fluidic part of burning is set.
25. in accordance with the method for claim 23, wherein heat the described step of described fluidic and comprise the zone circulation that makes described fluid pass through the exhaustion substantially in the offset well, described exhausted substantially zone comprises the shale bed that kerogen is exhausted substantially.
26. in accordance with the method for claim 16, wherein said fluid can comprise and being selected from by methane, ethane, propane, butane, the hydrocarbon gas, hydrogen, carbon monoxide, nitrogen, at least one in the group that helium, argon gas, neon are formed.
27. in accordance with the method for claim 16, wherein heating the described step of described fluidic is included in and heats described fluid with downhole burner in described at least one fluid circuit.
28. in accordance with the method for claim 16, wherein drilling comprises the perpendicular hole of drilling by oil shale layer to the described step of at least one fluid circuit of the bottom in the top in the purpose zone of oil shale layer and described purpose zone, and wherein said purpose zone comprises purpose area thickness (TZT).
29. in accordance with the method for claim 28, wherein said TZT comprises 25 feet to 100 feet thickness.
30. in accordance with the method for claim 28, comprise that also drilling passes through many mouthfuls of perpendicular holes of oil shale layer, wherein said many mouthfuls of perpendicular holes are spaced apart to the distance between about 2.0 times of TZT with about 0.5 times of TZT.
31. in accordance with the method for claim 28, wherein said purpose zone comprises the first purpose zone, described method also comprises makes the zone volume increase of second purpose, locate described injection tube in the described bottom in the described second purpose zone substantially, make that described at least one fluid circuit is injected in the described second purpose zone with the described first purpose zone isolation, with described fluid, the described fluid of heating is so that the kerogen in the described second purpose zone of fluid removal of heating with formation extraction fluid, and produces described extraction fluid.
32. in accordance with the method for claim 16, wherein drilling comprises first lateral segment of the described top section fluid communication in drilling and described purpose zone and second lateral segment of the described base section fluid communication in drilling and described purpose zone to the described step of at least one fluid circuit of the bottom in the top in the purpose zone of oil shale layer and described purpose zone.
33. according to the described method of claim 32, wherein said purpose zone comprises the height of level width that equals described purpose zone.
34. according to the described method of claim 32, wherein said purpose zone comprises the first purpose zone, described method also comprises the 3rd lateral segment of the top section fluid communication in the drilling and the second purpose zone, the base section fluid communication in wherein said first lateral segment and the described second purpose zone, described method also comprises makes the zone volume increase of described second purpose, locate described injection tube in the described bottom in the described second purpose zone substantially, make described at least one fluid circuit and the described first purpose zone isolation, described fluid is injected in the described second purpose zone, heat described fluid so that the on-the-spot kerogen in the described second purpose zone of fluid removal of heating forming described extraction fluid, and produces described extraction fluid.
35. the system of a situ extraction of oil from resinous shale, described system comprises:
Triphase separator, it is provided to the extraction fluid separation is oil, water and Sweet natural gas;
Fluid coupling, it is provided to isolated water is delivered to water treatment system, isolated oil is delivered to oily storage facilities, and isolated Sweet natural gas is delivered to the Sweet natural gas storage facilities;
The drilling unit, it is provided at least one fluid circuit of drilling to the bottom in the top in the purpose zone of oil shale layer and described purpose zone;
Stimulation module, it is provided to make the zone volume increase of described purpose;
Well completion unit, it is provided to substantially at the location, described bottom in described purpose zone injection tube;
Inject the unit, it is provided to inject fluid in the described purpose zone;
Hot supply unit, it is provided to heat described fluid, so that the on-the-spot kerogen of the fluid removal of heating, to produce the extraction fluid;
The extraction module, it produces described extraction fluid;
Processing module, it is provided to described extraction fluid is heated to target temperature, and described extraction fluid is reacted in catalyticreactor; And
Condensing unit, it is provided to cool off reacted extraction fluid, and described reacted extraction fluid is transported in the described triphase separator.
36. according to the described system of claim 35, also comprise oil heater, described oil heater is configured to receive from the heat of solar collector and receives heat from gas heater, wherein said hot supply unit further is provided to use the heat from described oil heater to heat described fluid, and wherein said injection tube comprises the vacuum insulation pipe.
Applications Claiming Priority (3)
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| US71664705P | 2005-09-14 | 2005-09-14 | |
| US60/716,647 | 2005-09-14 | ||
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| CNA2006800339531A Pending CN101292011A (en) | 2005-09-14 | 2006-09-14 | Apparatus, system, and method for in-situ extraction of oil from oil shale |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20070056726A1 (en) |
| CN (1) | CN101292011A (en) |
| BR (1) | BRPI0617005A2 (en) |
| IL (1) | IL190166A0 (en) |
| RU (1) | RU2008112558A (en) |
| WO (1) | WO2007033371A2 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| IL190166A0 (en) | 2008-08-07 |
| RU2008112558A (en) | 2009-10-20 |
| BRPI0617005A2 (en) | 2011-07-05 |
| WO2007033371A2 (en) | 2007-03-22 |
| US20070056726A1 (en) | 2007-03-15 |
| WO2007033371A3 (en) | 2007-05-18 |
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