CN105283633A - Method for increasing product recovery in fractures proximate fracture treated wellbores - Google Patents
Method for increasing product recovery in fractures proximate fracture treated wellbores Download PDFInfo
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- CN105283633A CN105283633A CN201380071601.5A CN201380071601A CN105283633A CN 105283633 A CN105283633 A CN 105283633A CN 201380071601 A CN201380071601 A CN 201380071601A CN 105283633 A CN105283633 A CN 105283633A
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- well
- irriate
- crack
- unprovoked
- product
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Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000011027 product recovery Methods 0.000 title claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 13
- 229930195733 hydrocarbon Natural products 0.000 claims description 36
- 239000004215 Carbon black (E152) Substances 0.000 claims description 31
- 239000012530 fluid Substances 0.000 claims description 23
- 239000000700 radioactive tracer Substances 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 14
- 230000000638 stimulation Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 4
- 230000004936 stimulating effect Effects 0.000 abstract description 14
- 230000000977 initiatory effect Effects 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 description 32
- 239000007789 gas Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005755 formation reaction Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052706 scandium Inorganic materials 0.000 description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/11—Locating fluid leaks, intrusions or movements using tracers; using radioactivity
Abstract
A method of recovering product from a fracture below a surface, said method including: a. providing a first well that may be stimulated or has been stimulated at a first predetermined depth within a formation; b. stimulating said well resulting in at least one fracture in said formation; said fracture having at least one initiation point and at least one distal point; wherein said at least one initiation point is proximate said stimulated well and said at least one distal point is distant said stimulated well; c. providing at least one non-stimulated well, proximate said first well at a second predetermined depth in said formation and contacting said at least one distal point of said at least one fracture; said at least one non-stimulated well further including at least one access point to capture product from said at least one fracture in said formation; capturing said product from said fracture through said at least non-stimulated well, and recovering said captured product optionally at said surface.
Description
Technical field
Generality of the present invention relates to horizontal hydrocarbon prospecting and development well field and oil field development method.Specifically, the present invention relates to increase product and gather, particularly gather from close to pressure break well, the preferably hydrocarbon in the crack of fracturing well through subterranean strata.More specifically, the present invention relates to (deviated) well substantially tilted of undressed, preferred non-fracturing, the wherein said undressed well substantially tilted is undressed in product recovery process, close to the well substantially tilted of frac treatment, preferably fracturing process, with the product that allows to gather, particularly from the hydrocarbon in the crack in described rock stratum, and use its method.
Background technology
Extract reservoir product from certain subterranean strata commercialization, such as oil and/or gas or its combination, require that well extends through stratum to reservoir.Stimulate well for increasing from rock stratum and reservoir recovery of oil and/or gas or its combination, in one case, caused around the waterpower crack in the stratum of well by fracturing.Usual well is to benefit from most the pattern boring of main waterpower fissure direction.Well is arranged one by one, in an example, arranges one by one in substantially forked mode, make well at a certain distance or spacing be evenly spaced apart, let out in described well to allow the hydrocarbon fluid that effectively makes to contain in reservoir and crack or gas.
If well is drilled at a distance of too far away, then the reservoir product of more and more most expectation is stayed in reservoir, particularly in crack.Have recorded when when crossing with reservoir from well larger distance place in oil and gas industry preferably, each waterpower crack can not be effectively gentle from the whole length output oil in crack.Think that the height to 66% or more of length in produced crack can not contribute to exploitation significantly.In other words, crack only 34% can contribute to the exploitation of total hydrocarbon.
Summary of the invention
Use following term to understand the present invention better in this article.
Hydrocarbon fluid refers to gas, oil or its combination, and it also can comprise other components, the water that such as fractured well at the moment uses.
Induction crack refers to that described pressure break stimulating technology comprises fracturing stimulating technology by comprising the crack using pressure break stimulating technology to stimulate any means induction of well.
The well of non-irriate (passive (passive)) refers to directly to be stimulated to stimulate crack or hydrocarbon to exploit by described well, but catches the well of hydrocarbon fluid or product from the crack that the well by irriate causes.Term " non-irriate (passive) " also refers to more less than the well irriate (or pressure break) of irriate, preferably unprovoked (non-pressure break), more preferably unprovoked (non-pressure break) substantially.This term also not only refers to the stimulation (pressure break) of less frequency of well, but also stimulation (pressure break) is divided in finger.Term " unprovoked " also refers to that be unprovoked when catching product according to methods described herein or in the process of catching product.
Product refers to the spawn contained in rock stratum or subsurface formations, such as hydrocarbon etc.In other cases, adopt the solute in salt operation, other mineral of such as sodium chloride and/or potassium chloride or the dissolving from described rock stratum, comprise geothermal heating water or steam.
According to an aspect of the present invention, provide the method for product of gathering from the reservoir below earth's surface, described product preferred hydrocarbons (gas, oil and combination thereof) fluid, preferably its usual first desired depth place in the earth formation that passes through can not gather close to the induction crack of the substantially horizontal well of irriate, and described method comprises:
The first desired depth place in the earth formation provides the substantially horizontal well of at least one irriate; Wherein said stimulation cause in described stratum, preferably in described reservoir, close at least one induction crack of the substantially horizontal well of at least one irriate described, preferred more than one induction crack; At least one induction crack described has at least one starting point close to the substantially horizontal well of at least one irriate described and at least one remote point away from the substantially horizontal well of at least one irriate described;
The second desired depth place in described stratum provides that at least one is unprovoked, preferably than described irriate well irriate less, more preferably unprovoked well substantially, its well close to described irriate, be preferably arranged essentially parallel to the well of described irriate; At least one unprovoked well wherein said comprises at least one access point (accesspoint) further to catch product, preferably to come from the hydrocarbon on described stratum, catch described product, preferably come from the hydrocarbon fluid at least one crack described and product, the preferred hydrocarbons fluid of catching described in gathering on described earth's surface.In one embodiment, described first and second desired depths are substantially the same.In another embodiment, described first and second desired depths are substantially different.Preferably at least one unprovoked well described is close at least one remote point described at least one induction crack described, more preferably at least one unprovoked well described with described at least one induce crack to contact, described in preferably crossing, at least one induces crack.
According to another aspect of the present invention, provide product recovery system, preferred hydrocarbons recovery system, it comprises:
The substantially horizontal well of at least one irriate at the first desired depth place in the earth formation; Wherein said stimulation causes at least one crack of the substantially horizontal well close at least one irriate described;
At least one of the second desired depth place in described stratum be unprovoked, preferred more less than the well irriate of described irriate, more preferably unprovoked well substantially, its well close to described irriate, is preferably arranged essentially parallel to the well of described irriate; At least one unprovoked well wherein said comprises at least one access point further and catches product, preferred hydrocarbons with the described stratum of the well from least one irriate described.
According to a further aspect of the invention, provide the determination methods and system of descending position, crack definitely, described determination methods and system comprise:
The first desired depth place in the earth formation provides the substantially horizontal well of at least one irriate; Wherein said stimulation causes at least one crack of the substantially horizontal well close at least one irriate described, preferred more than one crack;
At least one mark or tracer, preferably γ are launched tracer etc. be incorporated in the substantially horizontal well of at least one irriate described, make described tracer enter at least one crack of the well close to described irriate, preferred more than one crack;
The second desired depth place in described stratum provides at least one unprovoked, preferably less than the well irriate of described irriate, more preferably unprovoked well substantially, it is close to the well of described irriate, preferably be arranged essentially parallel to the well of described irriate, at least one unprovoked well wherein said comprises at least one access point further to catch described at least one mark or tracer from described stratum, at least one mark described or tracer is caught from least one crack described, and draw the position of described mark or tracer and the map in path to identify the position at least one crack described in described stratum, generation information is to draw at least one crack described, the map of preferred more than one crack in discrete fracture network (DFN), it adopts the method for industrial known map making.Described determination methods can show the improvement of crack design, make when considering all resources, nature and capital (such as, the investment of water, sand, hydrocarbon energy source and currency), the induction crack method in the well of the irriate of active (active) can more effectively realize.
Further, provide preferably before the well stimulating at least one irriate, in process and monitor bore parameters afterwards, preferably described at least one is unprovoked, the method for preferred more less than the well irriate of described irriate, more preferably substantially in unprovoked well pressure.When the crack stimulating the well of at least one irriate described to produce touch, preferably intersect at least one unprovoked well described time, preferred described monitoring indicates interval (interval).Preferably, described pressure is monitored by close to described unprovoked well, device, preferred pressure sensor or pressure gauge preferably in described well.In one embodiment, described pressure is monitored by front pressure ga ge.The knowledge of this information, preferably this interval can be used for improving crack method for designing with above-mentioned mark and the similar mode of tracer method.In addition, before carrying out well boring, the bore hole (openhole) that gets out is recorded to make natural fissure visual with imaging logging, then they by pressure break stimulate with by produce crack contact, preferably intersect at unprovoked well position visual, can help to understand crack and how to grow and to expand.
Preferably, at least one unprovoked well described comprises slotted liner (slottedliner) further.
Preferably, at least one unprovoked well described does not add sleeve pipe (cased).
In one embodiment, at least one irriate described has common entry point from described earth's surface with at least one unprovoked well described.
In another embodiment, at least one irriate described has from the different inlet point in described earth's surface separately with at least one unprovoked well described.
In one embodiment, at least one unprovoked well described is substantially below the well of at least one irriate described.
In another embodiment, at least one unprovoked well described is substantially above the well of at least one irriate described.
In another embodiment, at least one unprovoked well described is substantially at the height identical with the well of at least one irriate described.
In another embodiment, at least two unprovoked wells close to the well of at least one irriate described, preferably substantially above the well of described irriate and substantially thereunder.
In another embodiment, at least one unprovoked well described is preferably less than the well irriate of described irriate, more preferably non-irriate substantially.
In another embodiment, provide the method and system reducing the cost relevant to recovery of hydrocarbons fluid below earth's surface, described method and system is included in either method disclosed herein and system.
According to another embodiment, at least one unprovoked well described is former irriate when method of the present invention or in procedure of the present invention but the existing well of direct irriate.In this case, former irriate but be closed a period of time or untapped well can be the unprovoked well of product of gathering close to the well of irriate now within a period of time.
brief Description Of Drawings
Fig. 1 describes typical fractured well in oil field.
Fig. 2 describes the well according to non-pressure break of the present invention (or non-irriate) above the well of pressure break (or irriate).
Fig. 3 describes the well according to non-pressure break of the present invention (or non-irriate) below the well of pressure break (or irriate).
Fig. 4 describes the well according to two non-pressure breaks (or non-irriate) of the present invention, one above the well of pressure break (or irriate), one below the well of pressure break (or irriate).
Fig. 5 describes the well close to pressure break (or irriate) and the well according to multiple non-pressure break (or non-irriate) of the present invention contacted with by the crack stimulating described pressure break well to cause.
Fig. 6 describes the tracer identified in the well of non-spike, and it comes freely close to the crack that the well of the irriate of the well of non-spike produces.
Fig. 7 describes the map view of the well in stratum.
preferred embodiment
Other aspects of the present invention and advantage will be obvious from the following description and the appended claims.
With reference now to Fig. 1, provide the typical pressure break well 23 causing multiple crack 22 in the rock stratum on ground less than 19.Provide the inlet point 20 leading to well 23 above ground level.In an example, the first substantially horizontal well 23 pierces stratum.Well carries out adding sleeve pipe (cased) and preparing to carry out fracturing as known to those skilled.With reference now to Fig. 2, to hole above described pressure break well 23 second well 24 close to described first well 23 place, particularly.In this case, the second well 24 does not prepare for the typical way of carrying out fracturing.And think that the second well 24 is passive in essence.Passive well 24 can arrange to stop described well avalanche in any way, and preferably with slotted liner etc., or well can stay as bore hole.In an example, typical completion can require intermediate casing group and be glued to earth's surface in substantially horizontal well.Then passive or unprovoked well will start from the end of described intermediate casing, allows hydrocarbon to flow to earth's surface from the reservoir subsurface formations via intermediate casing, exploitation pipe or exploitation sleeve pipe according to the traditional completion method adopted in hydrocarbon industry.In this case, passive or unprovoked well can be that bore hole or Open-Hole Section can be avoided its avalanche by support, such as, but not limited to, slotted liner or pre-punching sleeve pipe or the sleeve pipe of boring a hole similarly with the well of irriate.In a preferred embodiment, exploitation sleeve pipe in the horizontal component of passive well is present in or bushing pipe will by position not cementing.
When the first well is through irriate, be stand fracturing to stimulate in that case, passive well can be used for catching the hydrocarbon (finding as best in Fig. 2-5) not necessarily can gathered by the well of irriate.Passive well catches hydrocarbon by slotted liner etc., they can by gas, liquid or these two kinds and other components, the combination composition of such as fracturing fluid, then use Regular means, preferably in earth's surface level, by the conventional and hydrocarbon collection that will catch with completion equipment process product or fluid of design like this, described product or fluid are the gas of any exploitation, hydrocarbon or other contain the nonhydrocarbon of the water that liquid is such as made up of fracturing fluid, formation water, salt solution or other rich fossil waters or any combination of hydrocarbon liquid such as oil, condensate or described fluid.
With reference now to Fig. 3, provide irriate or the well 23 of pressure break and the unprovoked well 25 below the well 23 of described pressure break.
In this case, passive or unprovoked well 25 will catch hydrocarbon, and they can by gas, liquid or these two kinds and other components, and such as, combination from the fracturing fluid in the crack substantially below pressure break well 23 forms.
With reference now to Fig. 4, provide the unprovoked well 24 above the well 23 of irriate, and the structure of unprovoked well 25 below the well 23 of irriate.Visible, importance of the present invention is the position of the unprovoked well of well close to irriate, is that the contact of unprovoked well is by the crack 22 stimulating well 23 to cause.
With reference now to Fig. 5, provide the structure that wherein 4 unprovoked wells 24,25,26 and 27 are positioned at the well 23 close to irriate, wherein well 24,25,26 and 27 touches by the crack 22 stimulating well 23 to cause.
Although described above is some structures of the unprovoked well of the well close to irriate, structure depends on stratum and the oil field of well to be got out, and can change according to the needs of operator.
Further, catch hydrocarbon although described above is, depend on the product types of expectation, any product can be caught.
By contrast, when use conventional art, when namely the first and second wells are fracturings, significant time, water and cost is taken.
Usually, in whole typical hydraulic fracturing operations process, pressure break well requires to use about 250,000 liter of fuel.
The well of 2500 meters long requires minimum 72 hours of 15 to 25 employees, and for preparing the equipment leasing with pressure break.
Based on hypothesis hole, completion and fracturing stimulation (" frac ") well, described stimulation uses typical high speed fracturing and 200 cubes of metric ton (" MT ") sand, provides typical material and equipment that pressure break (stimulation) well at the scene uses hereinafter.
Well head processing pressure, 65MPa, scope is from 40 to 65MPa;
Fluid injection rate, 15m
3/ min, scope is from 10 to 20m
3/ min;
The pressure break number of each well, each 20;
Each well is 6 to 9 from first time pressure break to changing completion into;
Sleeve pipe and the well cementation cost of horizontal well are included in boring price.
Below list exemplary apparatus and the material of the well cost of each irriate:
40,000,000 premium on currency;
4,000MT sand;
40,000 liter of polyacrylamide drag reducer;
120,000 liter of 15%HCl acid, it has for preventing the additive corroded;
9 to 40 bridging plugs;
500 to 1,500 jet perforating chargings;
250,000 liter of diesel oil is used for pumping equipment and mixing apparatus;
800 to 1600 megawatts (" MW ") waterpower pumping equipment adds that 10 to 20MW pumping equipment for subsequent use;
10 to 18m
3/ min mixing apparatus adds the scene backup of 100%;
Stored on-site equipment and from ore deposit transport 2000 to 4,000MT sand (not comprising transport fuel);
For running and the cable apparatus of fixing bridging plug and perforated casing
Coiled tubing (coiledtubing) equipment, it has the bottom outlet boring assemblies for upwards boring bridging plug
Total completion cost of the well of each irriate, $ 7,000,000.00 dollar.
The total cost of drilling well eye (unprovoked), $ 3,500,000.00 dollar.
Therefore, according to the present invention, supplying method and system are to save (in one aspect for each well certain degree Shangdi, each well potential saving maximum 50%), described well be unprovoked but still from (irriate or natural) crack, the crack of particularly being caused by the well of the irriate close to unprovoked well catches product.Other saving comprise, but be not limited to, reduce human time, reduce in the impact stimulating in well the fuel that uses on environment, reduce and use water, sand acid, bridging plug, proppant, running stores, the equipment of lease and diesel oil, and the percentage that the product of increase is gathered.
Can realize extra exploitation, and not need to exploit the cementing of sleeve pipe, perforation, pump fracturing process, and then place plug to isolate perforation, and then perforation is to the extra cost of well.These stimulate costs can be about the same many or exceed the cost of drilling well eye with the cost of drilling well eye.In addition, in the path in waterpower crack producing certainly contiguous well, the chance that such well provides the crack of judgement and supervision and passive wellbores is placed.
Passive well or catch the well that well is other more conventional basic horizontal contiguous and the well of holing, the well of the basic horizontal of described routine will be undertaken stimulating by fracturing stimulating method or by stimulation for exploitation.Passive or catch well by usual with passive well will have benefited from fracturing that is in scene or other wells of (onpad) in the works stimulate mode, on the direction parallel or substantially parallel with other wells, hole in time identical with other wells (or afterwards), the waterpower crack that the well of contiguous irriate is produced will touch, preferably intersect at passive well.In one embodiment, well will with equidirectional and equal length boring between well, but with other fractured wells or enliven well and separate, and the distance at interval is enough near to make some waterpower crack will touch passive well, preferably crossing with passive well.Passive well, in one embodiment, it will be barefoot completion, in another embodiment, Open-Hole Section by by slotted liner or pre-punching sleeve pipe or with the cover piping support enlivening well and bore a hole similarly, preferred passive well stimulates the present practice in well equally in position cementing by being unlike in many horizontal fractures.
The advantage of passive well of the present invention is discussed as above, but main purpose increases the output stimulating reservoir from fracturing and the impact reduced environment, and final every e
3m
3natural gas or every m
3oil and/or natural gas liquids or rock in the more low cost that consumes of other products of containing.Passive well does not directly stimulate by fracturing process, and described fracturing process mainly has environmental impact issues in the news of present several years.Industrially using surface water in minimizing, is fracturing object and be used for processing the chemical substance of water, and reduces burning diesel oil and natural gas receives challenge to drive the carbon of high pressure pumping equipment to affect aspect.This is green method, because from passive hydrocarbon of catching well extraction by much lower for cost in the surface water consumed and energy and minimizing processing requirements, the water of such as 20 to 25% returns after pressure break, and it will by pressure break chemical substance and salt, metal and radionuclide contamination.
Other advantages are the improvement in per hectare initil output and hydrocarbon harvest efficiency.
In the present invention, when introducing passive well as described herein, eliminating the cost, refuse and other the not preferred things (non-preferables) that are associated with the well of irriate, benefiting from the result of the well of close irriate simultaneously.
When service marking thing or tracer, particularly γ launches tracer, and during borehole image well logging, the present invention allows the map in the crack of drawing in stratum and is located, and this allows to optimize borehole position increases to make hydrocarbon Production Universe, and optimizes crack Treatment Design.Fig. 6 describes tracer well from afar and moves to close well via crack.
The use of passive well of the present invention seems to run counter to operation with conventional thought, because unprovoked well can catch hydrocarbon from the crack of the well close to irriate.Industrial generally accepted, well must be directly by fracturing stimulate with extraction hydrocarbon.
Following data provide and use the present invention to identify hydrocarbon reservoir position in stratum and to draw its map.
Well in the map view of Fig. 7 is separately at a distance of 400 meters.
Well b-18-I stimulates through fracturing, and γ emitted particle (iridium isotope) is with fracturing fluid pumping.
Well b-A18-I stimulates through fracturing, and γ emitted particle (scandium isotope) is with fracturing fluid pumping.
Non-pressure break well b-B18-I and b-C18-I is touched by the crack produced in the well b-A18-I of irriate and b-18-I.
By detect in unprovoked well b-B18-I and b-C18-I, be included in and launch isotope and being proved for the γ in the hydraulic fracture fluids of fracturing well b-18-I and b-A18-I at first.
Arrow instruction comes the comfortable position stimulating the iridium of the hydraulic fracture fluids used in the scandium in the hydraulic fracture fluids used in b-A18-I and next comfortable stimulation b-18-I to touch unprovoked (catching) well b-C18-I and b-B18-I.B-C18-I from b-A18-I400m, from b-18-I800m.B-B18-I from b-18-I400m, from b-A18-I800m.
Its scope is not deviated from due to many changes can be carried out to the preferred embodiment of the present invention; Be intended to think that all the elements comprised do not have limited significance to explanation of the present invention herein.
Claims (21)
1. gather from the crack below earth's surface the method for product, described method comprises:
A. the first desired depth place in stratum provides the first well, and it can irriate or irriate:
B. described well is stimulated to cause at least one crack in described stratum; Described crack has at least one starting point and at least one remote point; At least one starting point wherein said is close to the well of described irriate and at least one remote point described well away from described irriate;
C. the second desired depth place in described stratum provides at least one unprovoked well, and it is close to described first well, and at least one remote point described in contact at least one crack described; At least one unprovoked well described comprises at least one access point further and catches product with at least one crack described in from described stratum;
D. described product is caught by described at least unprovoked well from described crack, and the product of catching described in gathering, optionally at described earth's surface place.
2. gather from the induction crack below earth's surface the method for product, described method comprises:
The first desired depth place in the earth formation provides the substantially horizontal well of at least one irriate; Wherein said stimulation causes at least one the induction crack close to the substantially horizontal well of at least one irriate described; At least one induction crack described has at least one starting point close to the substantially horizontal well of at least one irriate described and at least one remote point away from the substantially horizontal well of at least one irriate described;
The second desired depth place in described stratum provides at least one unprovoked well, its well close to described irriate, be preferably arranged essentially parallel to the well of described irriate, at least one unprovoked well wherein said comprises at least one access point further to catch product from described stratum
Described product is caught from least one crack described, and
The product of catching described in gathering, optionally at described earth's surface place.
3. method according to claim 2, wherein said first and second desired depths are substantially the same.
4. method according to claim 2, wherein said first and second desired depths are substantially different.
5. the method according to any one of claim 1-4, at least one unprovoked well wherein said is close at least one remote point described at least one induction crack described.
6. the method according to any one of claim 1-4, at least one unprovoked well wherein said crosses at least one induction crack described.
7. the method according to any one of claim 1-4, wherein said product is hydrocarbon fluid.
8. product recovery system, it comprises:
The substantially horizontal well of at least one irriate at the first desired depth place in the earth formation; Wherein said stimulation causes at least one crack of the substantially horizontal well close at least one irriate described; At least one unprovoked well at the second desired depth place in described stratum, it is close to the well of described irriate; At least one unprovoked well wherein said comprises at least one access point further and catches product with the described stratum of the well from least one irriate described; With
At least one crack described, it has at least one starting point and at least one remote point.
9. system according to claim 8, at least one unprovoked well wherein said is arranged essentially parallel to the well of described irriate.
10. system according to claim 8 or claim 9, wherein said first and second desired depths are substantially the same.
11. systems according to claim 8 or claim 9, wherein said first and second desired depths are substantially different.
12. systems according to claim 8, wherein said product is hydrocarbon fluid.
13. systems according to Claim 8 according to any one of-12, at least one unprovoked well wherein said is close at least one remote point described at least one crack described.
14. systems according to Claim 8 according to any one of-12, at least one unprovoked well wherein said crosses at least one induction crack described.
15. determination methods determining the position at least one crack, underground, described determination methods comprises:
The first desired depth place in the earth formation provides the substantially horizontal well of at least one irriate; Wherein said stimulation causes at least one crack of the substantially horizontal well close at least one irriate described;
At least one tracer, preferably radioactive tracer are incorporated in the substantially horizontal well of at least one irriate described, make described tracer enter at least one crack of the well close to described irriate;
The second desired depth place in described stratum provides at least one unprovoked well, it is close to the well of described irriate, and at least one unprovoked well wherein said comprises at least one access point further to catch described at least one tracer via at least one crack described from described stratum; Catch described at least one tracer from least one crack described, and draw the position of described tracer and the map in path.
The method of the borehole pressure in 16. at least one unprovoked well of monitoring; At least one unprovoked well described can the well of irriate close at least one; Described method be included in stimulate described at least one can monitor borehole pressure before and after, during the well of irriate.
17. methods according to claim 16, wherein said pressure is monitored by the pressure gauge close to described unprovoked well.
18. methods reducing the cost of product of gathering from the crack below earth's surface, described method comprises the method used according to any one of claim 1-7.
19. systems reducing the cost of product of gathering from the crack below earth's surface, described system comprises the system according to any one of claim 8-14.
20. methods according to claim 18, wherein said product is hydrocarbon fluid.
21. methods according to claim 19, wherein said product is hydrocarbon fluid.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261730741P | 2012-11-28 | 2012-11-28 | |
| US61/730,741 | 2012-11-28 | ||
| PCT/CA2013/000994 WO2014082162A1 (en) | 2012-11-28 | 2013-11-27 | Method for increasing product recovery in fractures proximate fracture treated wellbores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105283633A true CN105283633A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201380071601.5A Pending CN105283633A (en) | 2012-11-28 | 2013-11-27 | Method for increasing product recovery in fractures proximate fracture treated wellbores |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20140144623A1 (en) |
| CN (1) | CN105283633A (en) |
| CA (1) | CA2835534A1 (en) |
| GB (1) | GB2523036A (en) |
| MX (1) | MX2015006808A (en) |
| WO (1) | WO2014082162A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386264A (en) * | 2017-08-08 | 2019-02-26 | 魏志海 | Hot dry rock (EGS) twin-well artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction |
| CN112041539A (en) * | 2018-02-09 | 2020-12-04 | 克雷斯通峰资源公司 | Simultaneous fracturing process |
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| GB2540683B (en) * | 2014-05-17 | 2020-12-16 | Halliburton Energy Services Inc | Establishing communication downhole between wellbores |
| US10815766B2 (en) | 2015-02-27 | 2020-10-27 | Schlumberger Technology Corporation | Vertical drilling and fracturing methodology |
| CA2939679A1 (en) * | 2016-08-18 | 2018-02-18 | Velvet Energy Ltd. | Fracture length increasing method |
| EP3510245A4 (en) * | 2016-09-12 | 2020-05-13 | Services Pétroliers Schlumberger | Attaining access to compromised fractured production regions at an oilfield |
| EP3565950A4 (en) | 2017-01-04 | 2020-08-26 | Services Pétroliers Schlumberger | Reservoir stimulation comprising hydraulic fracturing through extended tunnels |
| US11203901B2 (en) | 2017-07-10 | 2021-12-21 | Schlumberger Technology Corporation | Radial drilling link transmission and flex shaft protective cover |
| US11486214B2 (en) | 2017-07-10 | 2022-11-01 | Schlumberger Technology Corporation | Controlled release of hose |
| WO2019168885A1 (en) * | 2018-02-27 | 2019-09-06 | Schlumberger Technology Corporation | Producing disconnected propped fractures |
| US11193332B2 (en) | 2018-09-13 | 2021-12-07 | Schlumberger Technology Corporation | Slider compensated flexible shaft drilling system |
| US20240026863A1 (en) * | 2022-07-25 | 2024-01-25 | Gti Energy | Vertical and helical well designs for enhanced geothermal systems |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB2523036A (en) | 2015-08-12 |
| GB201509426D0 (en) | 2015-07-15 |
| CA2835534A1 (en) | 2014-05-28 |
| US20140144623A1 (en) | 2014-05-29 |
| MX2015006808A (en) | 2015-08-06 |
| WO2014082162A1 (en) | 2014-06-05 |
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