CN101203465A - Method of well treatment and construction - Google Patents
Method of well treatment and construction Download PDFInfo
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- CN101203465A CN101203465A CNA2006800142487A CN200680014248A CN101203465A CN 101203465 A CN101203465 A CN 101203465A CN A2006800142487 A CNA2006800142487 A CN A2006800142487A CN 200680014248 A CN200680014248 A CN 200680014248A CN 101203465 A CN101203465 A CN 101203465A
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- cement
- aplite
- composition
- cement composition
- oil well
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 title abstract description 6
- 239000004568 cement Substances 0.000 claims abstract description 156
- 239000000203 mixture Substances 0.000 claims abstract description 88
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 37
- 239000003129 oil well Substances 0.000 claims description 31
- 239000000377 silicon dioxide Substances 0.000 claims description 18
- 230000008602 contraction Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 10
- 239000003469 silicate cement Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 5
- 238000005345 coagulation Methods 0.000 claims description 5
- 230000002269 spontaneous effect Effects 0.000 claims description 5
- 239000012190 activator Substances 0.000 claims description 4
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 15
- 239000004917 carbon fiber Substances 0.000 description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 238000012360 testing method Methods 0.000 description 12
- 235000019580 granularity Nutrition 0.000 description 11
- 229960001866 silicon dioxide Drugs 0.000 description 10
- 235000012239 silicon dioxide Nutrition 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000013505 freshwater Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/048—Granite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0027—Standardised cement types
- C04B2103/0028—Standardised cement types according to API
- C04B2103/0035—Type G
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00275—Materials impermeable to vapours or gases
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a method of well construction or treatment which comprises introducing a setable cement composition down a borehole, characterized in that said composition contains pulverulent aplite.
Description
The present invention relates to oil well (well) builds and the permanent shutoff of oil well and depleted method and the improvement relevant with described method, method of construction and permanent shutoff and discarded method and the improvement relevant with described method in particular to geothermal well and the oil well that is used for the hydro carbons extraction also relate to the cement, cement composition and the cement additire that are used for described method.
When building oil well, after carrying out drilling well, tubular metal tube, sleeve pipe or bushing pipe are placed in the pit shaft, and fill the space of managing between outer wall and the shaft in wall with cement.In this way, different zones is separated, and prevent that fluid such as water, gas or oil from spilling along pit shaft.Cement also is used for the permanent shutoff of oil well and discards." the Well Cementing " that edits at E.B.Nelson for example, SchlumbergerEducational Services, Sugar Land, Texas, USA in 1990, is described down-hole well cementation (downhole cementing).
Used cement keeps the bonding of its mechanical integrity and maintenance and sleeve pipe or bushing pipe and shaft in wall in wishing very much oil well construction or shutoff and discarding.
Down-hole cement commonly used comprises silica powder usually, silica powder/silicate cement of for example about 35%bwoc (in cement weight) (Portland cement) mixture, to obtain required down-hole mechanical character, the ultimate compression strength when for example later being exposed to comparatively high temps.Yet the cement that known use contains silica powder can cause some problems at lower downhole temperature under certain conditions as when solidifying start-up plug (kick-off plug) etc.Under the described conditions, the well location place requires a large amount of different dry cement, causes a logistics difficult problem (logistic challenge) thus.
In the time limit of service of oil well, the temperature and pressure that sleeve pipe/bushing pipe stood is changing all the time, because cement may produce contraction naturally, thereby influences the bonding of cement.By for example pressure test, exploitation, injection/augmented injection (injection/stimulation), well workover etc., the circulation of occurrence temperature and pressure in the time limit of service of oil well.Also known coagulated silicon acid salt cement is exposed to carbonic acid gas will cause the cement corrosion.The Kong Yue of set cement is many, and corrosion speed is fast more and loss zonal isolation (zonal isolation) is big more.Particularly experience height round-robin down well placement, and/or, may adopt complicated cement system in the down well placement that will be exposed to carbonic acid gas at temperature and pressure height or expectation.These complexity and expensive cement system can comprise a large amount of different additives of use, special equipment, many different cement blend, extra operator etc.
Thereby need following cement composition: it demonstrates enough long-term behaviours when using in the down-hole, simultaneously, can for example in high pressure/high temperature, low pressure/low temperature, carbon dioxide environment, be used for relevant well cementation as much as possible as patching materials, shutoff and rejected material, start-up plug material etc. and use.
We have found that, can realize these improved performances by the powdery aplite is included in the cement that will be applied to the down-hole as component.
Thereby from the invention provides the method that (treatment) built or handled to oil well on the one hand, this method comprises along pit shaft introduces the solidifiable cement composition downwards, it is characterized in that described composition comprises the powdery aplite.
Add carbon fiber in the oil well cement to and can be used for influencing several critical natures of described oil well cement.The most important thing is those relevant in these character, but under fluid state, the carbon fiber in the cement also can improve the ability of the minimizing of cement to the fluid loss (fluid loss) of rock stratum with set cement.During cement operations, fluid loss is problem normally, this be because the density of cement usually greater than the density of the drilling fluid that it replaced.In some cases, but the carbon fiber bridge joint causes the crackle of dehydration, thereby reduces dehydration during extraction operation (pumping operation).
The more important thing is the character of set cement, this is because carbon fiber for example will influence ultimate compression strength, tensile strength and be bonded to character such as sleeve pipe/rock stratum.Ultimate compression strength is important, but the more important thing is that carbon fiber will give the tensile strength that set cement increases.Temperature and pressure circulation in the oil well is particularly crucial for set cement, and this is because the temperature and pressure circulation causes sleeve pipe/tube swelling/contraction.This motion of known sleeve will cause set cement to lose efficacy, thereby cause the weak zonal isolation along pit shaft.Can be used for the isolated most critical mechanical properties of best oil reservoir by in oil well cement, using carbon fiber and aplite simultaneously, controlling.
Thereby, the method that another aspect of the present invention provides oil well to build or handle, this method comprises along pit shaft introduces the solidifiable cement composition downwards, it is characterized in that described composition comprises powdery aplite and carbon fiber.
Be used for suitable carbon fiber of the present invention and comprise the AS available from Devold AMT, N-6030Langev g, the carbon fiber of Norway.The length of carbon fiber is preferably 0.1cm～10.0cm, and more preferably 0.3cm～2.5cm is preferably 0.5cm～1.0cm especially.The diameter of fiber is preferably 1 μ m～15 μ m, is preferably 3 μ m～10 μ m, and more preferably 6 μ m～8 μ m are in particular 7 μ m.The fibre weight that every cubic metre of cement admixture (be that cement adds aplite, perhaps cement adds aplite and adds the blast furnace slag) is added is preferably 0.1kg/m
3～10kg/m
3, 0.3kg/m more preferably
3～7kg/m
3, be preferably 0.5kg/m especially
3～5kg/m
3
The used term oil well of the application is meant and is used for from extracting the fluidic oil well below the face of land or being used for the oil well of the underground injection of fluidic.Common this oil well is used for water or the extraction of hydro carbons (for example gas (gas) or oil (oil)) or the injection of water, carbonic acid gas or hydrocarbon gas, especially for the introducing of carbonic acid gas.
The used solidifiable of the application be meant described composition after using can through or solidify in the down-hole without intervening (intervention).Intervention is added catalyzer or pH regulator agent after can being included in usually and placing cement composition thus.Comprise under the situation of adding other material such as pH regulator agent in desired intervention, in this application described composition is called " non-spontaneous coagulation ".
Aplite is the granide mineral, for example at Montpelier, Virginia, OwensValley, the California of the U.S., and the Finnvolldalen of Norway, and Japan, Russia, what gondola Tuscany found.Aplite almost is used for the production of once-firing ceramic tile as fusing assistant at present specially.Aplite is commercially available from for example Maffei Natural Resources, Italy and US Silica Company, WestVirginia, USA.Usually aplite comprises silicon, magnesium, iron, sodium, aluminium, potassium, titanium and calcium, and main component is silicon and aluminium (representing with oxide content), accounts for 60～85wt% and 10～25wt% usually respectively.
The used aplite of the present invention is preferably high silicon content aplite (high silicon contentaplite), and for example silicone content (representing with oxide content) is 68wt% at least, more preferably 70wt% at least, particularly 75wt% at least.Especially preferred silicone content (representing with oxide content) is the aplite that originates from Norway Finnvolldalen of about 80wt%.
Silicone content is expressed as oxide content, and the representation element cellulose content is the geology practice of standard by this way.Therefore for example the typical chemical analysis of its aplite (originating from Montpelier) of providing of US Silica Company is SiO
262.0%, Fe
2O
30.18%, Al
2O
321.7%, TiO
20.30%, CaO5.6%, MgO 0.034%, Na
2O 5.5%, K
2O 2.9%, P
2O
50.22% and LOI (ignition loss) 0.1%.
The granularity of the used powdery aplite of the present invention is more preferably less than 100 μ m preferably less than 200 μ m, 1～100 μ m for example, and 10～100 μ m more typically, 50～100 μ m for example are particularly less than 75 μ m.Can or use particle size measuring instrument to measure the granularity of indication here by screening.When mentioning granularity less than a certain value, at least 50 volume % so usually, preferred at least 80 volume % are this granularity or littler granularity.Perhaps can take for example particle-size analyzer such as the measured mode granularity (mode particle size) of Ku Erte particle-size analyzer (Coulter particle sizeanalyser).Can change thick aplite into thinner aplite by the rock crushing technology of routine, randomly sieve subsequently to isolate excessive and/or too small particle.
Calculate (on dry solid basis) by dried solid matter, powdery aplite additive preferably accounts for 10%bwoc (i.e. " cement weight " at least, promptly can form the weight of the essentially consist of cement), more preferably 30%bwoc, 35%bwoc, 50%bwoc more especially at least especially at least at least, for example up to 400%bwoc, even in the greater concn of cement weight, more typically up to 200%bwoc, 100%bwoc at least for example.Usually, calculate by dried solid matter, aplite accounts for the 85wt% that is not more than of solidifiable cement composition, for example is not more than 65wt%, preferably is not more than 60wt%, more preferably no more than 55wt%.
This high aplite content cement composition itself is novel and forms another aspect of the present invention.From another point of view, the invention provides for example powder mixture shape or moisture pulpous state cement composition, calculate by dried solid matter, this cement composition comprises at least 30%bwoc (for example 30～400%bwoc), preferred 35%bwoc at least, more particularly 50%bwoc, for example the powdery aplite of 40～200%bwoc at least.
Interested especially is to contain 100%bwoc at least, the composition of 125～200%bwoc aplite for example, and this is because described composition low temperature uses and the high temperature use all is suitable for.Have to use different cement to be used for the different degree of depth and temperature at present.
To use the finely powdered aplite in cement also be novel and form another aspect of the present invention.From this respect, the invention provides the cement composition that contains aplite, calculate by dried solid matter, described cement composition for example contains 10%bwoc at least, preferably the aplite of 30%bwoc, especially 30～400%bwoc at least, the granularity of described aplite is less than 200 μ m, preferably less than 100 μ m, 50～100 μ m for example are especially less than 75 μ m.
Basic cement composition, the cement based in the composition therefor promptly of the present invention can be any cement that can use in the down-hole, for example silicate cement or other conventional cement.This cement composition can extensively obtain and it carried out describing widely.
Although aplite is to understand good geology term, but what the application should emphasize is, the present invention can use with respect to silicon-dioxide has same or analogous other granitoid that reduces the effect of cement contraction, the material of taking aplite on the alternative form as, although and take that with use the material of aplite compares that to use described other granitoid be not preferred as, think that it is also within the scope of the invention.
Except that aplite, in cement composition of the present invention, also can use other silicate powder, for example silicon-dioxide, particularly silica powder.The weight ratio of common non-aplite silicate and aplite is 0: 100～90: 10, more particularly 2: 98～70: 30, and 10: 90 especially～30: 70.When aplite content was relatively low, it was particularly preferred using non-aplite silicate except that aplite.
As mentioned above, the main effect that comprises aplite is that cement when reducing to solidify shrinks.Lacking under the situation of aplite, contraction can be up to 4 volume %.Under the situation that contains the 40%bwoc aplite, show to shrink to be reduced to 1.2 volume % that under the situation that contains the 50%bwoc aplite, contraction is reduced to 0.7 volume % (measured after 150 ℃ solidify 68 hours).This low shrinkage cement constitutes the preferred embodiments of the invention, and the present invention in this embodiment contains the contraction of cement when solidifying of aplite less than 3 volume %.Described contraction will be preferably less than 2.5%, is more preferably less than 2.0%, and most preferably less than 2%.
The sizable advantage of another of cement of the present invention is that gained set cement composition has low-down porosity and/or low-down rate of permeation.The perviousness that reduces will reduce any fluid or gas (CO for example
2) intrusion, thereby and reduce the migration that cement plug or wall are crossed in cement corrosion and gas or fluid.Slurry density is that the water-permeable of the coagulated silicon acid salt cement (being similar to the cement composition that does not contain aplite among the embodiment 3) of 1.90 SG is about 0.0010mD (millidarcy), and described water-permeable increases along with reducing of density.If slurry density is reduced to 1.44SG, water-permeable is increased to about 0.1380mD so.API Spec.10, the 11.4th joint have described and how to carry out described permeability test and be that those skilled in the art are familiar with.
Compare with the Equivalent that does not contain aplite, the cement that the present invention contains aplite has the rate of permeation of reduction.For example, compare with the silicate cement composition with equal densities, the aplite in the silicate cement reduces rate of permeation.Rate of permeation by this reduction reduces any fluid or the gas intrusion that causes cement corrosion and/or zonal isolation loss.
In preferred embodiments, according to API Spec.10, the 11.4th joint, the rate of permeation that the present invention contains after the theing cement solidifies of aplite is lower than following cement: do not contain under the situation of aplite prepared equivalence (equivalent) set cement and/or contain the equivalent set cement that equivalent silica powder replaces the aplite component.In this embodiment, density is that the porosity of the cement of 1.9SG is not more than 0.0005mD usually, preferably is not more than 0.0003mD, and more preferably no more than 0.0002mD.To easily carry out this absolute or comparison test according to known standard.
According to industrial standard, aplite in the cement composition of the present invention (and silicate powder) content is defined as dry weight per-cent with respect to basic cement composition such as silicate cement composition, and described basic cement composition is promptly got rid of the composition after other additive such as tinting material, antiseptic-germicide, organic polymer, the fiber (for example inorganic fibre such as glass fibre or " rock wool " fiber) etc.Except that the additive such as silicon oxide of remarkably influenced set cement structure (for example load) character, this other additive is not more than 10%wt.dsb usually with respect to whole cement composition, typically less than 5%wt.Except that these additives, cement composition comprises cement based, promptly can solidify the material that forms cement, more specifically comprises the inorganic cement base.In the present technique field, cement based such as silicate cement are known, need not to further specify at this.For example at Lea, " The Chemistry of Cement and Concrete ", 3rd Edition, Edward Arnold, Old Woking, UK, 1970 and Taylor, " Cement Chemistry ", Academic Press, London, UK discusses cement in 1990.
In specific embodiments of the present invention, can use blast-furnace slag (BFS) as all or part of (for example near 0 (as 2%) to 100wt% (as 90wt%) almost) cement based.For example Saasen etc. is at SPE28821, European Petroleum Conference, and London, UK has discussed the purposes of BFS in the down-hole well cementation is used among the 25-27 October 1994.BFS can be used as the base of non-self cure cement composition especially, described non-self cure cement composition promptly take further action (for example adding the pH regulator agent, more specifically alkaline reagents) but and cause solidify before the composition placed of original position.For down-hole application, non-self cure cement composition and curing initiator separate administration.For example, can add or throw in (for example, can be before adding cement for example throw in, activator is placed the desired position) curing initiator by surface from metal tube etc. with for example pH is transferred to about 9.0 or more before, the cement composition extraction is put in place.If cement based only part is BFS, for example surplus is a silicate cement, then may need not to use activator, because constitute the effect that the material of surplus can play activator.
Cement based all or major part be (for example greater than 80%, particularly greater than 90%, particularly basically 100%) under the situation of BFS, the concentration of aplite can be the concentration of any non-zero but common and aforementioned proportion matches.Particularly, the amount of used aplite can be more than the 30 weight % of cement based (BFS) in the embodiment of the present invention.
May meet with the pyritous down well placement for being used for, most interested at present is BFS base cement composition; Yet still there is the contraction problem of not expected in conventional BFS base cement composition, described contraction problem is solved by aplite used according to the invention.Solidifiable cement composition (aqueous or exsiccant), the non-spontaneous coagulation composition that particularly comprises blast-furnace slag and powdery aplite constitutes another aspect of the present invention, described blast-furnace slag and powdery aplite are for example 2%bwoc at least, 20%bwoc at least more specifically, 35%bwoc at least particularly, 40%bwoc etc. at least more especially is for example up to 200%bwoc or up to 400%bwoc.
From this respect, the invention provides solidifiable cement composition (aqueous or exsiccant), but non-spontaneous coagulation composition particularly is provided, comprise blast-furnace slag and powdery aplite and optional carbon fiber.
From another point of view, the invention provides the purposes of aplite in building or handle underground fluid extraction or introducing oil well.From more on the one hand, the invention provides optional sealed fluid flow and extract or introduce oil well, described oil well comprises pit shaft, has annular pit shaft oil well screen (borehole well-lining) at least one degree of depth in this pit shaft, described oil well screen comprises set cement, described set cement uses the cement composition of the carbon fiber that contains the powdery aplite and choose wantonly, particularly contains the described cement composition of the application and makes.
Cement composition of the present invention can be used for also expecting that cement shrinks other the underground well cementation that reduces and uses, for example, be used for shutoff or fill the crack of rock or be used for the lining of other underground scale of construction (subterraneanvolume) as storage capacity (storage volume), pipe or passage.Can think that also these use a formation part of the present invention.
Can use cement composition of the present invention in the down-hole by solidifiable cement composition (for example non-spontaneous coagulation cement composition) this area conventional steps and equipment that down-hole application adopted.
To further specify product of the present invention and technology with reference to following non-limiting example.
Embodiment 1
The cement composition that contains aplite
Originate from Finnvolldalen by mixing 100 weight part G level silicate cements (available from Norcem) and 50 weight parts, the powdery aplite of Norway (sieve is the following granularities of 75 μ m) (contains SiO
279.20%, MgO 0.11%, Fe
2O
30.20%, Na
2O 3.0%, Al
2O
311.10%, K
2O 3.90%, TiO
20.02%, CaO 1.29%, P
2O
50.1%), makes the dry cement composition.
Add 62.01L/100kg fresh water (fresh water) to said composition.
In the high pressure/high temperature consistometer, solidify described mixture in 5000psi/150 ℃.Viewed volumetric shrinkage is 0.7%.
In 3000psi/150 ℃ of ultimate compression strength that in ultrasonic cement analyser, records (according to APIRecommended Practice for Testing Well Cements, 22nd Edition, 1997) as shown in the following Table 1:
Table 1
| Time (time: divide) | Intensity (psi) |
| 1:43 2:50 24:00 48:00 | 50 500 3480 3260 |
Embodiment 2
The cement composition (contrast) that does not contain aplite
By adding 45.55L/100kg fresh water, make cement composition to the G level silicate cement that derives from Norcem.With identical among the embodiment 1 this mixture is cured and tests, demonstrate 3.4% volumetric shrinkage, ultimate compression strength as shown in the following Table 2:
Table 2
| Time (time: divide) | Intensity (psi) |
| 1:50 2:39 24:00 | 50 500 3296 |
Embodiment 3
The cement composition that contains aplite
With the identical dry cement composition that makes among the embodiment 1, the different 40 weight part aplites that are to use.With described composition and 58.72L/kg mixing of fresh water, and with embodiment 1 in identically be cured and test.Said composition demonstrates 1.2% volumetric shrinkage, ultimate compression strength as shown in the following Table 3:
Table 3
| Time (time: divide) | Intensity (psi) |
| 1:44 2:52 24:00 48:00 | 50 500 3227 2560 |
Can adopt the cement composition of conventional oil well cement application apparatus in down-hole preparation and Application Example 1 and 3.
Embodiment 4
Fragmentation and contraction test
The cement composition of preparation shown in the table 4, and identical ultrasonic cement analyser is tested among use and the embodiment 1.
Table 4
| Composition | Test period (hour) | Test temperature (℃) | Final strength (psi) | Crushing test (psi) | Shrink (%) |
| NorcemG | 24 | 150 | 3294 | - | - |
| NorcemG | 24 | 175 | 1000 | - | 3.4 |
| NorcemG | 68 | 175 | 1000 | - | 3.4 |
| NorcemG | 24 | 20 | 880 | - | - |
| NorcemG+35% silicon-dioxide | 24 | 150 | 3962 | - | - |
| NorcemG+35% silicon-dioxide | 24 | 175 | 3700 | 6939 | 0.5 |
| NorcemG+35% silicon-dioxide | 68 | 175 | 3300 | 6939 | 0.5 |
| NorcemG+35% silicon-dioxide | 24 | 150 | 3200 | - | 1.2 |
| NorcemG+35% silicon-dioxide | 68 | 150 | 2600 | - | 1.2 |
| NorcemG+35% silicon-dioxide | 24 | 20 | 900 | - | - |
| NorcemG+35% silicon-dioxide | 68 | 20 | 1772 | - | - |
| NorcemG ≠+10% aplite | 24 | 150 | 2289 | - | - |
| NorcemG ≠+15% aplite | 24 | 150 | 1432 | - | - |
| NorcemG ≠+40% aplite | 24 | 150 | 2905 | - | - |
| NorcemG ≠+40% aplite | 24 | 175 | 1400 | - | 3 |
| NorcemG ≠+40% aplite | 68 | 175 | 1200 | - | 3 |
| NorcemG ≠+50% aplite | 24 | 175 | 2200 | 1743 | 3 |
| NorcemG ≠+50% aplite | 68 | 175 | 2000 | 1 743 | 3 |
| The NorcemG+40% aplite | 24 | 150 | 3200 | - | 1.2 |
| The NorcemG+40% aplite | 68 | 150 | 2600 | - | 1.2 |
| The NorcemG+50% aplite | 24 | 150 | 3450 | - | 0.7 |
| The NorcemG+50% aplite | 68 | 150 | 3200 | - | 0.7 |
| The NorcemG+75% aplite | 24 | 150 | 5000 | 8270 | 1.2 |
| The NorcemG+75% aplite | 68 | 150 | 4316 | 8270 | 1.2 |
| The NorcemG+100% aplite | 24 | 150 | 5800 | - | 0.7 |
| The NorcemG+100% aplite | 68 | 150 | 5438 | - | 0.7 |
| The NorcemG+150% aplite | 24 | 150 | 8000 | 8965 | 0.7 |
| The NorcemG+150% aplite | 68 | 150 | 7069 | 8965 | 0.2 |
| The NorcemG+75% aplite | 24 | 20 | 1600 | - | 0.2 |
| The NorcemG+75% aplite | 48 | 20 | 3963 | - | - |
| The NorcemG+150% aplite | 24 | 20 | 4000 | - | - |
| The NorcemG+150% aplite | 48 | 20 | 5662 | - | - |
*% is bwoc for silicon-dioxide, promptly with respect to Norcem G
Used aplite is non-homogeneous brill dirt in ≠ these tests.The granularity of used aplite is less than 75 μ m in other test.
Even these results show at low temperatures (for example using traditional cement to cause the temperature of problem) in deep water, still can advantageously use the aplite of relatively large particularly granularity less than 75 μ m.
Embodiment 5
Carbon fiber reinforced cement
Can use the Norcem G cement that is mixed with 150%bwoc aplite (granularity is less than 75 μ m), 0.1～0.3%bwoc (for example 0.2%bwoc) carbon fiber and 94L/100kg fresh water, the preparation cement composition.The staple length of described carbon fiber is generally 5～50mm, for example 10～40mm.
Claims (19)
1. the oil well method of building or handling, this method comprises along pit shaft introduces the solidifiable cement composition downwards, it is characterized in that described composition comprises the powdery aplite.
2. a cement composition calculates by dried solid matter, and it comprises the powdery aplite of at least 30% cement weight (bwoc).
3. the described composition of claim 2 calculates by dried solid matter, and it comprises the powdery aplite of 100%bwoc at least.
4. each described composition in the claim 2 and 3 calculates by dried solid matter, and it comprises the bwoc powdery aplite up to 400%.
5. each described cement composition in the claim 2～4, it comprises the aplite of granularity less than 200 μ m.
6. each described composition in the claim 2～5, it comprises the aplite of granularity less than 100 μ m.
7. each described cement composition in the claim 2～6, it comprises the cement based that contains silicate cement.
8. solidifiable cement composition, it comprises blast-furnace slag and powdery aplite.
9. each described cement composition in the claim 2～8, the silicon content of wherein said aplite is counted 68wt% at least with oxide content.
10. each described cement composition in the claim 2～9, it also comprises non-aplite silicate, and the weight ratio of wherein non-aplite silicate and aplite is 2: 98～70: 30.
11. each described cement composition in the claim 2～10, the contraction when wherein said set cement composition solidifies is less than 3 volume %.
12. the set cement that forms by each described cement composition in the claim 2～11, wherein said set cement according to API Spec.10, the rate of permeation of the 11.4th joint is less than the rate of permeation of the equivalent set cement that is formed by the equivalent cement composition that does not contain aplite under the same terms.
13. the set cement that forms by each described cement composition in the claim 2～11, wherein said set cement according to API Spec.10, the rate of permeation of the 11.4th joint less than under the same terms by the rate of permeation that contains the equivalent set cement that equivalent cement composition that silica powder replaces aplite forms.
14. the method described in the claim 1, wherein said cement are each described cement in the claim 2～11.
15. the method described in the claim 1, wherein said solidifiable cement are non-spontaneous coagulation cement, and wherein activator are separated with described solidifiable cement and introduce described pit shaft.
16. the purposes of aplite in building or handle underground fluid extraction or introducing oil well.
17. the purposes described in the claim 16, wherein said aplite are included in the claim 2～11 in each described cement.
18. oil well is extracted or introduced to an optional sealed fluid flow, described oil well comprises pit shaft, this pit shaft has annular pit shaft oil well screen at least one degree of depth, and described oil well screen comprises set cement, and described set cement uses the cement composition that contains the powdery aplite to make.
19. the oil well described in the claim 18, wherein said cement composition are each described cement composition in the claim 2～11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0508420A GB2425531B (en) | 2005-04-26 | 2005-04-26 | Cement compositions with aplite |
| GB0508420.7 | 2005-04-26 | ||
| GB0520981.2 | 2005-10-14 |
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|---|---|
| CN101203465A true CN101203465A (en) | 2008-06-18 |
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|---|---|---|---|
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|---|---|
| CN (1) | CN101203465A (en) |
| GB (1) | GB2425531B (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8210261B2 (en) | 2005-04-26 | 2012-07-03 | Statoil Asa | Method of well treatment and construction |
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| BRPI0512142B1 (en) | 2004-06-17 | 2018-01-23 | Statoil Petroleum As | Method for treatment of an underground formation, use of a material, and, hydrocarbon well treatment composition |
| EA200802357A1 (en) | 2004-06-17 | 2010-02-26 | Статойлгидро Аса | WELLS HANDLING |
| GB0520981D0 (en) * | 2005-10-14 | 2005-11-23 | Statoil Asa | Method |
| GB2438398A (en) * | 2006-05-24 | 2007-11-28 | Statoil Asa | Settable cement or concrete composition |
| GB2449847B (en) * | 2007-06-01 | 2011-11-23 | Statoil Asa | A cemented aluminium liner |
| GB2450502B (en) | 2007-06-26 | 2012-03-07 | Statoil Asa | Microbial enhanced oil recovery |
| CN103045214A (en) * | 2013-01-16 | 2013-04-17 | 西南石油大学 | Plugging thixotropic cement paste for oil-gas well and preparation method for same |
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| CA2131906A1 (en) * | 1991-03-29 | 1992-10-15 | Raymond S. Chase | Silica-containing cement and concrete composition |
| ATE219474T1 (en) * | 1993-03-25 | 2002-07-15 | Mitomo Shoji Kabushiki Kaisha | CEMENTITIVE, KNEADED, SHAPED ARTICLE HAVING HIGH BINDING STRENGTH AND COMPRESSION STRENGTH, AND METHOD FOR PRODUCING |
| US6897186B2 (en) * | 1997-02-12 | 2005-05-24 | Kg International, Llc | Composition and method for dual function soil grouting excavating or boring fluid |
| US6630022B2 (en) * | 1999-05-12 | 2003-10-07 | Granite Rock Company | Mechanical activation of granitic powders |
-
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| US8210261B2 (en) | 2005-04-26 | 2012-07-03 | Statoil Asa | Method of well treatment and construction |
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| GB0508420D0 (en) | 2005-06-01 |
| ZA200709024B (en) | 2009-08-26 |
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