CN110029980A - Carbonate Reservoir stitches dictyosome product acid fracturing method - Google Patents
Carbonate Reservoir stitches dictyosome product acid fracturing method Download PDFInfo
- Publication number
- CN110029980A CN110029980A CN201910385857.2A CN201910385857A CN110029980A CN 110029980 A CN110029980 A CN 110029980A CN 201910385857 A CN201910385857 A CN 201910385857A CN 110029980 A CN110029980 A CN 110029980A
- Authority
- CN
- China
- Prior art keywords
- acid solution
- slippery water
- acid
- carbonate
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002253 acid Substances 0.000 title claims abstract description 174
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000008267 milk Substances 0.000 claims abstract description 78
- 210000004080 milk Anatomy 0.000 claims abstract description 78
- 235000013336 milk Nutrition 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 230000008901 benefit Effects 0.000 claims abstract description 34
- 239000003292 glue Substances 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 230000005012 migration Effects 0.000 claims abstract description 6
- 238000013508 migration Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 111
- 241000196324 Embryophyta Species 0.000 claims description 64
- 239000003921 oil Substances 0.000 claims description 55
- 239000000843 powder Substances 0.000 claims description 26
- 230000007797 corrosion Effects 0.000 claims description 20
- 238000005260 corrosion Methods 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- 239000000654 additive Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000004088 foaming agent Substances 0.000 claims description 15
- 239000003995 emulsifying agent Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 230000000996 additive effect Effects 0.000 claims description 12
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000001879 gelation Methods 0.000 claims description 11
- 230000009466 transformation Effects 0.000 claims description 11
- -1 corrosion inhibiter Chemical compound 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 10
- 239000003431 cross linking reagent Substances 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 9
- 239000003349 gelling agent Substances 0.000 claims description 9
- ZRALSGWEFCBTJO-UHFFFAOYSA-N guanidine group Chemical group NC(=N)N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 7
- PRPAGESBURMWTI-UHFFFAOYSA-N [C].[F] Chemical group [C].[F] PRPAGESBURMWTI-UHFFFAOYSA-N 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 5
- 230000005764 inhibitory process Effects 0.000 claims description 5
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 4
- 244000205754 Colocasia esculenta Species 0.000 claims description 4
- 235000006481 Colocasia esculenta Nutrition 0.000 claims description 4
- 241000522215 Dipteryx odorata Species 0.000 claims description 4
- 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 claims description 4
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 claims description 4
- 244000275012 Sesbania cannabina Species 0.000 claims description 4
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 3
- 240000000972 Agathis dammara Species 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229920002871 Dammar gum Polymers 0.000 claims description 3
- 239000004166 Lanolin Substances 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 229910021538 borax Inorganic materials 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 239000010779 crude oil Substances 0.000 claims description 3
- 239000002283 diesel fuel Substances 0.000 claims description 3
- 125000002636 imidazolinyl group Chemical group 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- 229940039717 lanolin Drugs 0.000 claims description 3
- 235000019388 lanolin Nutrition 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 239000012875 nonionic emulsifier Substances 0.000 claims description 3
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920000053 polysorbate 80 Polymers 0.000 claims description 3
- 239000004328 sodium tetraborate Substances 0.000 claims description 3
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 3
- 150000003505 terpenes Chemical class 0.000 claims description 3
- 235000007586 terpenes Nutrition 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 claims description 2
- 235000005979 Citrus limon Nutrition 0.000 claims 1
- 244000131522 Citrus pyriformis Species 0.000 claims 1
- 239000002562 thickening agent Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 48
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000006378 damage Effects 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 239000010430 carbonatite Substances 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 208000010392 Bone Fractures Diseases 0.000 description 20
- 206010017076 Fracture Diseases 0.000 description 20
- 238000005457 optimization Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 description 1
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 description 1
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 235000010254 Jasminum officinale Nutrition 0.000 description 1
- 240000005385 Jasminum sambac Species 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 description 1
- WERKSKAQRVDLDW-ANOHMWSOSA-N [(2s,3r,4r,5r)-2,3,4,5,6-pentahydroxyhexyl] (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO WERKSKAQRVDLDW-ANOHMWSOSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Confectionery (AREA)
Abstract
The present invention relates to carbonate oil-gas field development technical fields, it is a kind of Carbonate Reservoir seam dictyosome product acid fracturing method, it is carried out by the following method: low slimy milk slippery water acid solution is injected into carbonate oil gas field well, realizing reduces the low slimy milk slippery water acid solution migration resistance near wellbore zone；Low slimy milk slippery water acid solution is injected into carbonate oil gas field well, and seam dictyosome product acidfracturing treatment is carried out to the advantage fissure channel near perforated interval；It is pumped into natural plant gum liquid into carbonate oil gas field well, completes the steering procedure of low slimy milk slippery water acid solution；Continue to be pumped into low slimy milk slippery water acid solution into carbonate oil gas field well, completes seam dictyosome product acidfracturing treatment process；Displacement fluid is injected into carbonate oil gas field well, tests oil and gas production.Low slimy milk slippery water acid solution can reduce nearly well nearby acid solution is distally migrated resistance in crack in the present invention, conducive to long and complex Fracture Systems are formed；Meanwhile natural plant gum liquid steering capability is strong, is easy to oxygen and breaks glue, can reduce and turn to liquid to the secondary injury of reservoir, achieve the purpose that the volume increase of carbonatite acid fracturing wells and stable yields.
Description
Technical field
The present invention relates to carbonate oil-gas field development technical fields, are a kind of Carbonate Reservoir seam dictyosome product acid fracturing methods.
Background technique
China's carbonate petroleum resources are abundant, such as the wheel Gu oil field of Tarim Basin, system in Tahe Oilfield, the jasmine in vigorous bay basin
County buried hill oil gas field, the Luojiazhai gas field in the Sichuan Basin, puguang gas field, Lower Paleozoic of Ordos Basin oil gas field, Qaidam
The oil field Nan Yishan in basin, oil field Qing Xi of Jiuquan Basin etc., the lithology of these main force's oil-gas Layers are carbonatite.Therefore, it mentions
High carbon acid oil gas pool development technique, especially acid-fracture technology, it has also become ensure the important prerequisite of energy supply.
In Carbonate Reservoir, oil gas is primarily present in crack or solution cavity, thus how to increase the permeability in crack with
Linking up crack solution cavity is the key that obtain acid fracturing volume increase to increase gas, wherein seam dictyosome product ACID FRACTURING TECHNOLOGY is aiming at slit formation carbonate
Effective ACID FRACTURING TECHNOLOGY that reservoir reconstruction proposes.The construction method of the technology can make acid solution quickly advance along fractuer direction,
The corrosion reaming of acid solution acts on, and further fracture permeabgility is made to be greatly improved.Most obvious feature is by stitching dictyosome
The well of acid fracturing is accumulated, yield can increase sharply after pressure, and decline rate becomes smaller, and volume increase validity period is elongated.Crack is multiple in Carbonate Reservoir
Miscellaneous multiplicity, acid solution can preferentially enter in the bigger crack of fracture width when entering reservoir, and pass through acid solution fracture wall surface
Continuous solubilized reaming effect, making these cracks is even more the region that acid solution preferentially enters, these cracks are known as advantage crack.And one
A little relatively narrow microcracks of crack width are intervened almost without acid solution, and the Fracture Systems mutually got in touch with these cracks will also cannot get acid
Storey increase design is pressed, these cracks are known as disadvantage crack.This cloth acid mode cannot such as be improved, and acid solution is formed in the reservoir
Acid etching channel will only a kind of single fingering form also can only similar to the single root system of plant in big scope of construction item
The length and width for increasing fracture extension, it is little that the crevice volume transformation near perforated interval involves degree, in order to make disadvantage crack
System can also obtain more sufficient acidfracturing treatment, generally use crack steering technique, force acid solution to turn to, acid solution is made to enter disadvantage
In Fracture Systems, under the action of acid solution solubilising reaming, these original disadvantage Fracture Systems will become advantage into sour Fracture Systems,
Acid fracturing effect also changes correspondingly, and original single plant root system becomes a plurality of root system of plant, and also different on root system direction,
Turn to that number is more, and the transformation root quantity near perforated interval is more, variant of the surrounding Fracture Systems from laterally and longitudinally
Product is bigger, is more conducive to the volume increase of oil/gas well.Therefore acid fracturing steering must be carried out during seam dictyosome product acid fracturing, can just makes acid
Press effect extension.But the generally existing certain defect of current steering technique, most of diversion agent are polymerization species, this object
The disadvantage of matter is broken that glue is relatively difficult, is easily adsorbed on the inner wall in crack, influences subsequent residual acid solution and quickly return to drain into ground
Face.
Summary of the invention
The present invention provides a kind of Carbonate Reservoir seam dictyosome product acid fracturing methods, overcome the defects of the prior art,
It can effectively solve that existing there are oil/gas well acid fracturings that ineffective, oil and gas production successively decreases in Carbonate Reservoir Reservoir Development technology
Too fast and short stable production period problem.
The technical scheme is that realized by following measures: a kind of Carbonate Reservoir seam dictyosome product acid fracturing side
Method carries out by the following method: the first step, in 2m3/ min to 3m3Under the pump note discharge capacity of/min, infused into carbonate oil gas field well
Enter 50m3/ section is to 100m3The low slimy milk slippery water acid solution of/section, the low insulating liquid for replacing a wellbore volume, termination of pumping react 20min extremely
60min, reaching realization reduces the low slimy milk slippery water acid solution migration resistance near wellbore zone；Second step, in 4m3/ min to 7m3/ min's
Under pump note discharge capacity, 150m is injected into carbonate oil gas field well3/ section is to 200m3The low slimy milk slippery water acid solution of/section, to perforated interval
Neighbouring advantage fissure channel carries out seam dictyosome product acidfracturing treatment；Third step, when the transformation degree in advantage crack reaches low slimy milk
First segment injection rate is 100m in slippery water acid solution3Second segment injection rate is 200m in/section, low slimy milk slippery water acid solution3When/section,
In 4.5m3/ min to 9m3Under the pump note discharge capacity of/min, 20m is pumped into carbonate oil gas field well3/ section is to 50m3/ section natural plant gum
Liquid, natural plant gum liquid enter in advantage fissure channel, and advantage fissure channel temperature rises to 80 DEG C to 106 DEG C, cause plant
Glue body forms high viscous frozen glue, prevents subsequent low slimy milk slippery water acid solution from going successively in advantage fissure channel, low slimy milk is smooth
Water acid solution starts changed course and enters in disadvantage crack, completes the steering procedure of low slimy milk slippery water acid solution；4th step continues to carbonic acid
Low slimy milk slippery water acid solution is pumped into salt oil gas field well, low slimy milk slippery water acid solution extends forward in new Fracture Systems, expands
Hole solubilising completes seam dictyosome product acidfracturing treatment process；5th step, injects displacement fluid into carbonate oil gas field well, and closing well 2 hours
Drive a well drain after to 6 hours, tests oil and gas production.
Here is the further optimization and/or improvements to invention technology described above scheme:
The composition of raw materials of above-mentioned low slimy milk slippery water acid solution in parts by weight, including 10 parts to 25 parts hydrochloric acid, 0.5 part to 3
Part corrosion inhibiter, 0.5 part to 1 part citric acid, 0.5 part to 3 portions cleanup additive, 0.5 part to 3 parts foaming agent, 0.1 part to 1 part acid solution are thick
Agent, 2 parts to 8 parts emulsifiers, 10 parts to 20 parts oil emulsions, the low slimy milk slippery water acid solution is by by the desired amount of hydrochloric acid, slow
Erosion agent, citric acid, cleanup additive, foaming agent, gelling agent for acid fluid, emulsifier and oil emulsion are mixed to get.
Above-mentioned corrosion inhibiter is imidazoline type corrosion inhibiter；Or/and cleanup additive is fluorine carbon type cleanup additive；Or/and blistering
Agent is fluorine carbon type foaming agent；Or/and gelling agent for acid fluid is that acrylamide monomer passes through altogether with other with acidproof salt resistance monomer
The poly- molecular weight that forms is the polymer between 600 to 10,000,000；Or/and emulsifier is nonionic emulsifier, HLB value be 14 to
19；Or/and oil emulsion is one of 0# diesel oil, kerosene and light crude oil.
Mentioned emulsifier is polyoxyethylene sorbitol lanolin derivative nonionic 14.0, polyoxyethylene sorbitan
Monoleate nonionic 15.0, polyoxyethylene octadecanol nonionic 15.3, polyoxyethylene 20 sorbitan monolaurate are non-
One or more of ion 16.3.
Above-mentioned insulating liquid is the mixture that the water of 3 parts to 6 portions cleanup additives, 3 parts to 6 parts foaming agents and surplus forms.
Above-mentioned low slimy milk slippery water acid solution corrosion inhibition rate is not higher than 0.5g/cm2.h, the viscosity of low slimy milk slippery water acid solution is not high
25mN/m is not higher than in the surface tension of 10mPa.s, low slimy milk slippery water acid solution.
The composition of raw materials of above-mentioned natural plant gum liquid in parts by weight, including 0.35 part to 0.6 part plant gum powder, 0.03
Part to 1 part of pH value mediator agent, 0 part to 5 parts oil-soluble resin particle, 0.1 part to 2 parts crosslinking agent, 0.01 part to 0.1 part persulfuric acid
Ammonium or sodium peroxydisulfate, the natural plant gum liquid by by the desired amount of plant gum powder, pH value mediator agent, oil-soluble resin particle, hand over
Connection agent, ammonium persulfate or sodium peroxydisulfate are mixed to get.
Above-mentioned plant gum powder is one or more of guanidine rubber powder, sesbania powder, tonka bean powder, mushroom taro powder；Or/and pH value is reconciled
Agent is sodium hydroxide or carbonic acid acid sodium, and the pH value of natural plant gum liquid is 10 to 13；Or/and oil-soluble resin particle is rosin tree
One or more of rouge, gum dammar, oil-soluble phenolic resin, Petropols and terpene resin, oil-soluble resin grain diameter
For 20 mesh to 70 mesh；Or/and crosslinking agent is one or more of borax, organic boron and organic zirconium.
For above-mentioned natural plant gum liquid when the reservoir temperature of Carbonate Reservoir is lower than 50 DEG C, gelation time is 5min to 10min,
When the reservoir temperature of Carbonate Reservoir is 80 DEG C to 120 DEG C, gelation time is 0.2min to 1min, and natural plant gum liquid is in carbonic acid
When the reservoir temperature of salt reservoir is between 50 DEG C to 80 DEG C, gelation time is 1min to 3min.
Above-mentioned natural plant gum liquid is 500mPa.s to 1000mPa.s at adhesiveness, and natural plant gum liquid is in Carbonate Reservoir
Reservoir temperature under, viscosity drops to not higher than 8 mPa.s after 4 hours to 8 hours.
Low slimy milk slippery water acid solution can reduce nearly well nearby acid solution is distally migrated resistance in crack in the present invention, be conducive to shape
Grow up and complex fracture system；Meanwhile natural plant gum liquid steering capability is strong, is easy to oxygen and breaks glue, can reduce and turn to liquid to reservoir
Secondary injury has achieved the purpose that the volume increase of carbonatite acid fracturing wells and stable yields.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.It is previously mentioned various chemical reagent and chemical article in the present invention unless otherwise specified, is public in the prior art
Know common chemical reagent and chemical article；Percentage in the present invention does not have specified otherwise such as, is mass percent；This hair
It is the aqueous solution that solvent is water, for example, hydrochloric acid solution is aqueous hydrochloric acid solution if the solution in bright is without specified otherwise；This
Room temperature, room temperature in invention refer generally to 15 DEG C to 25 DEG C of temperature, are commonly defined as 25 DEG C.
The present invention will be further described below with reference to examples:
Embodiment 1: the Carbonate Reservoir stitches dictyosome product acid fracturing method, carries out by the following method: the first step, in 2m3/ min is extremely
3m3Under the pump note discharge capacity of/min, 50m is injected into carbonate oil gas field well3/ section is to 100m3The low slimy milk slippery water acid solution of/section,
20min to 60min is reacted in the low insulating liquid for replacing a wellbore volume, termination of pumping, and it is smooth to reach the low slimy milk in realization reduction near wellbore zone
Water acid solution migration resistance；Second step, in 4m3/ min to 7m3Under the pump note discharge capacity of/min, injected into carbonate oil gas field well
150m3/ section is to 200m3The low slimy milk slippery water acid solution of/section carries out seam dictyosome product acid to the advantage fissure channel near perforated interval
Pressure transformation；Third step is 100m when the transformation degree in advantage crack reaches first segment injection rate in low slimy milk slippery water acid solution3/
Second segment injection rate is 200m in section, low slimy milk slippery water acid solution3When/section, in 4.5m3/ min to 9m3The pump of/min infuses discharge capacity
Under, 20m is pumped into carbonate oil gas field well3/ section is to 50m3/ section natural plant gum liquid, it is logical that natural plant gum liquid enters advantage crack
In road, advantage fissure channel temperature rises to 80 DEG C to 106 DEG C, and plant glue solution body is caused to form high viscous frozen glue, prevents subsequent low viscous
Newborn slippery water acid solution is gone successively in advantage fissure channel, and low slimy milk slippery water acid solution starts changed course and enters in disadvantage crack, complete
At the steering procedure of low slimy milk slippery water acid solution；4th step continues to be pumped into low slimy milk slippery water acid into carbonate oil gas field well
Liquid, low slimy milk slippery water acid solution extends forward in new Fracture Systems, reaming is solubilized, completes seam dictyosome product acidfracturing treatment mistake
Journey；5th step, injects displacement fluid into carbonate oil gas field well, and closing well drives a well drain after 2 hours to 6 hours, and test oil gas produces
Amount.
Carbonate Reservoir seam dictyosome product acid fracturing method of the present invention, passes through the slimy milk slippery water acid solution injected in Carbonate Reservoir
A degree of acidification is carried out to the microcrack of near wellbore zone, subsequent acid solution is reduced and distally extends intrusion resistance, then most
Bigization ground carries out seam net volume fracturing transformation to advantage crack around pit shaft, finally blocks advantage fracture entry with natural plant gum liquid
End realizes that acid solution turns to, enters acid solution in disadvantage crack, and new seam net volume fracturing acid is formed in other fracture network
Transformation process is pressed, to realize that most microcrack all obtains acidfracturing treatment around carbonate rock reservoir perforated interval, changes very
After the acidified pressure break of multi-carbonate well, effect of increasing production is always unobvious, gas production is bad, after pressure pressure and production decline fastly,
Stable production period short phenomenon, the acidfracturing treatment of fracture type carbonate oil-gas reservoir have far reaching significance.
The present invention is adapted to reservoir temperature≤120 DEG C, and depth of reservoirs≤5000m slit formation Carbonate Reservoir carries out seam net
Volume fracturing rebuilding construction.
In the present invention, displacement fluid is active water.
Embodiment 2: the Carbonate Reservoir stitches dictyosome product acid fracturing method, carries out by the following method: the first step, in 2m3/
Min or 3m3Under the pump note discharge capacity of/min, 50m is injected into carbonate oil gas field well3/ section or 100m3The low slimy milk slippery water of/section
20min or 60min is reacted in acid solution, the low insulating liquid for replacing a wellbore volume, termination of pumping, and reaching realization reduces the low slimy milk near wellbore zone
Slippery water acid solution migration resistance；Second step, in 4m3/ min or 7m3Under the pump note discharge capacity of/min, infused into carbonate oil gas field well
Enter 150m3/ section or 200m3The low slimy milk slippery water acid solution of/section carries out seam dictyosome product to the advantage fissure channel near perforated interval
Acidfracturing treatment；Third step is when the transformation degree in advantage crack reaches first segment injection rate in low slimy milk slippery water acid solution
100m3Second segment injection rate is 200m in/section, low slimy milk slippery water acid solution3When/section, in 4.5m3/ min or 9m3The pump of/min is infused
Under discharge capacity, 20m is pumped into carbonate oil gas field well3/ section or 50m3/ section natural plant gum liquid, natural plant gum liquid enter advantage and split
It stitches in channel, advantage fissure channel temperature rises to 80 DEG C or 106 DEG C, causes plant glue solution body to form high viscous frozen glue, prevents subsequent
Low slimy milk slippery water acid solution is gone successively in advantage fissure channel, and low slimy milk slippery water acid solution starts changed course and enters disadvantage crack
In, complete the steering procedure of low slimy milk slippery water acid solution；4th step continues to be pumped into low slimy milk into carbonate oil gas field well smooth
Water acid solution, low slimy milk slippery water acid solution extends forward in new Fracture Systems, reaming is solubilized, completes seam dictyosome product acidfracturing treatment
Process；5th step, injects displacement fluid into carbonate oil gas field well, and closing well drives a well drain after 2 hours or 6 hours, tests oil gas
Yield.
Embodiment 3: as the optimization of above-described embodiment, the composition of raw materials of low slimy milk slippery water acid solution is according to parts by weight
Meter, including 10 parts to 25 parts hydrochloric acid, 0.5 part to 3 parts corrosion inhibiter, 0.5 part to 1 part citric acid, 0.5 part to 3 parts cleanup additive, 0.5
For part to 3 parts of foaming agents, 0.1 part to 1 part gelling agent for acid fluid, 2 parts to 8 parts emulsifiers, 10 parts to 20 parts oil emulsions, the low slimy milk is sliding
Water acid solution is slipped by by the desired amount of hydrochloric acid, corrosion inhibiter, citric acid, cleanup additive, foaming agent, gelling agent for acid fluid, emulsifier and cream
Carburetion is mixed to get.
In the present invention, the solvable mineral in slimy milk slippery water acid solution fracture wall surface and crack carry out corrosion, reach to
The purpose of the distracted further reaming solubilising of microcrack can increase peracid microcrack according to Darcy's law to a certain extent
The extending pressure of end, to increase the length of microcrack extension.
Embodiment 4: as the optimization of above-described embodiment, corrosion inhibiter is imidazoline type corrosion inhibiter；Or/and cleanup additive is
Fluorine carbon type cleanup additive；Or/and foaming agent is fluorine carbon type foaming agent；Or/and gelling agent for acid fluid be acrylamide monomer with
It is other with acidproof salt resistance monomer by copolymerization into molecular weight be 600 to 10,000,000 between polymer；Or/and emulsifier
For nonionic emulsifier, HLB value is 14 to 19；Or/and oil emulsion is one of 0# diesel oil, kerosene and light crude oil.
Embodiment 5: as the optimization of above-described embodiment, emulsifier is polyoxyethylene sorbitol lanolin derivative nonionic
14.0, polyoxyethylene 20 sorbitan monooleate nonionic 15.0, polyoxyethylene octadecanol nonionic 15.3, polyoxyethylene
One or more of sorbitan mono-laurate nonionic 16.3.
In the present invention, polyoxyethylene 20 sorbitan monooleate nonionic 15.0 is polyoxyethylene (20EO) dehydration
Sorbitol monooleate nonionic 15.0.
Embodiment 6: as the optimization of above-described embodiment, insulating liquid be 3 parts to 6 portions cleanup additives, 3 parts to 6 parts foaming agents and
The mixture of the water composition of surplus.
Embodiment 7: as the optimization of above-described embodiment, low slimy milk slippery water acid solution corrosion inhibition rate is not higher than 0.5g/cm2.h,
The viscosity of low slimy milk slippery water acid solution is not higher than 10mPa.s, and the surface tension of low slimy milk slippery water acid solution is not higher than 25mN/m.
In the present invention, low slimy milk slippery water acid solution has good corrosion mitigating effect, in the case where optimum amount, corrosion inhibition rate
≤0.5g/cm2.h, optimum viscosity value is 5mPa.s to 8mPa.s, and gelling agent for acid fluid optimum amount is 0.1 part to 0.5 part, can be made
The harm that oil casing is generated by acid etching is preferably minimized.
Embodiment 8: as the optimization of above-described embodiment, the composition of raw materials of natural plant gum liquid in parts by weight, including
0.35 part to 0.6 part plant gum powder, 0.03 part to 1 part pH value mediator agent, 0 part to 5 parts oil-soluble resin particle, 0.1 part to 2 parts
Crosslinking agent, 0.01 part to 0.1 part ammonium persulfate or sodium peroxydisulfate, the natural plant gum liquid is by by the desired amount of plant gum powder, pH
Value mediator agent, oil-soluble resin particle, crosslinking agent, ammonium persulfate or sodium peroxydisulfate are mixed to get.
In the present invention, acid solution diversion agent is done using natural plant gum liquid, one side technical advantage is natural plant gum liquid on ground
During pump note, crosslinking time can be controlled by pH value in liquid, make it during pumping note, remain low viscous shape
State, viscosity≤40mPa.s realize safe construction convenient for the imbibition and pumping of fluid；Another big advantage is, natural plant gum liquid
Crosslinking time it is more sensitive to temperature, if natural plant gum liquid enters in the duct of crack, stratum heating effect under, in temperature
It rising quickly, natural plant gum liquid quickly forms high viscous frozen glue, which can prevent subsequent acid solution from going successively to advantage fissure channel,
To make acid solution be redirected into disadvantage crack, the steering procedure of acid solution is completed.Natural plant gum liquid, can under the action of persulfate
Broken glue is aoxidized to realize, long-chain becomes short chain, is easy to return and drains into ground.It therefore can as acid solution diversion agent using natural plant gum liquid
To substantially reduce injury of the acid solution diversion agent of previous polymer type to reservoir, the row of returning for utmostly improving residual acid is led, and is increased
Add oil and gas production.
Embodiment 9: as the optimization of above-described embodiment, plant gum powder is guanidine rubber powder, in sesbania powder, tonka bean powder, mushroom taro powder
More than one；Or/and pH value mediator agent is sodium hydroxide or carbonic acid acid sodium, the pH value of natural plant gum liquid is 10 to 13；Or/
With, oil-soluble resin particle is in rosin resin, gum dammar, oil-soluble phenolic resin, Petropols and terpene resin one
Kind or more, oil-soluble resin grain diameter is 20 mesh to 70 mesh；Or/and crosslinking agent is one in borax, organic boron and organic zirconium
Kind or more.
In the present invention, plant gum powder is the substances such as guanidine rubber powder, sesbania powder, tonka bean powder, mushroom taro powder, belongs to the common production in oil field
Product, while price is also cheaper than artificial-synthetic copolymer.
Embodiment 10: as the optimization of above-described embodiment, natural plant gum liquid is lower than 50 in the reservoir temperature of Carbonate Reservoir
DEG C when, gelation time be 5min to 10min, Carbonate Reservoir reservoir temperature be 80 DEG C to 120 DEG C when, gelation time is
0.2min to 1min, when the reservoir temperature of Carbonate Reservoir is between 50 DEG C to 80 DEG C, gelation time is natural plant gum liquid
1min to 3min.
Embodiment 11: as the optimization of above-described embodiment, natural plant gum liquid at adhesiveness be 500mPa.s extremely
1000mPa.s, natural plant gum liquid is under the reservoir temperature of Carbonate Reservoir, and viscosity drops to not higher than 8 after 4 hours to 8 hours
mPa.s。
In the present invention, the gelation time of natural plant gum liquid is more sensitive to temperature, and after entering fissure channel, temperature can be fast
Speed rises, and natural plant gum gelation time shortens, quickly forms viscosity and be more than the frozen glue body of 500mPa.s, to prevent subsequent acid solution
It goes successively to, plays the purpose of acid solution fast steering.Meanwhile natural plant gum liquid, under the action of persulfate, meeting is in a timing
Interior (after such as 4 hours) decompose broken glue, and long-chain substance becomes the residue of short chain, and by means of under the promotion of residual acid, major part will
It returns and drains into ground.Therefore, natural plant gum liquid does acid solution diversion agent, has steering capability is strong, turning velocity is fast, can break glue to return row couple
The features such as reservoir damage is small.
Embodiment 12: the Carbonate Reservoir stitches dictyosome product acid fracturing method, carries out by the following method: the first step, in 2m3/
Under min pump note discharge capacity, 100m is injected into carbonate oil gas field well3The low slimy milk slippery water acid solution of/section is low to replace a pit shaft body
40min is reacted in long-pending insulating liquid, termination of pumping, and reaching realization reduces the low slimy milk slippery water acid solution migration resistance near wellbore zone；Second step,
In 5.5m3Under the pump note discharge capacity of/min, 150m is injected into carbonate oil gas field well3The low slimy milk slippery water acid solution of/section, to penetrating
Advantage fissure channel near hole section carries out seam dictyosome product acidfracturing treatment；Third step, when the transformation degree in advantage crack reaches low
First segment injection rate is 100m in slimy milk slippery water acid solution3Second segment injection rate is 200m in/section, low slimy milk slippery water acid solution3/
Duan Shi, in 5.5m3Under the pump note discharge capacity of/min, 25m is pumped into carbonate oil gas field well3/ section natural plant gum liquid, plant glue solution
Body enters in advantage fissure channel, and advantage fissure channel temperature rises to 80 DEG C, and plant glue solution body is caused to form high viscous frozen glue, resistance
Only subsequent low slimy milk slippery water acid solution is gone successively in advantage fissure channel, and low slimy milk slippery water acid solution starts changed course and enters disadvantage
In crack, the steering procedure of low slimy milk slippery water acid solution is completed；4th step continues to be pumped into low slimy milk into carbonate oil gas field well
Slippery water acid solution, low slimy milk slippery water acid solution extends forward in new Fracture Systems, reaming is solubilized, completes seam dictyosome product acid fracturing
Transformation process；5th step, injects displacement fluid into carbonate oil gas field well, and closing well drives a well drain after 4 hours, and test oil gas produces
Amount.
Well be certain block a bite straight well, reservoir be carbonate fractured reservoir, oil/gas show interval be 3576m extremely
3650m, lithology are taupe gassiness dolomite, and four intervals of acid fracturing point, formation temperature is 106 DEG C, barometric gradient 2.10MPa/
100m.Permeability 0.01mD to 0.4mD, porosity 4.5% to 7%.Core acid etching rate is 86.5%.From the point of view of coring physical property, filling
Object is mainly a small amount of calcite and shale, is reacted with dilute hydrochloric acid, and crack is relatively developed.According to Carbonate Reservoir of the present invention seam dictyosome product
Embodiment 12 in acid fracturing method carries out seam dictyosome product acid fracturing conceptual design, and organizes to carry out acid fracturing construction.
Wherein, A well construction scale is as shown in table 1, low in implementing Carbonate Reservoir seam dictyosome product acid fracturing method of the present invention
Slimy milk slippery water acid solution composition of raw materials be 20 parts of hydrochloric acid, 1.5 parts of corrosion inhibiter, 0.3 part of citric acid, 2 portions of cleanup additives, 1 part of foaming agent,
0.25 part of gelling agent for acid fluid, 5 parts of emulsifiers, 18 parts of oil emulsions；Low slimy milk slippery water acid solution corrosion inhibition rate 0.31g/cm2.h, low viscous
The viscosity 5.5mPa.s, the surface tension 22.4mN/m of low slimy milk slippery water acid solution of newborn slippery water acid solution.Low slimy milk slippery water acid
Liquid total amount is 900 m3, wherein with acid solution amount being 467m in advantage crack3, with acid solution amount it is 233m in disadvantage crack3, drop
The resistance stage is 200m with acid solution amount3；Insulating liquid is the mixture that the water of 5 portions of cleanup additives, 5 parts of foaming agents and surplus forms；Plant
Glue body composition of raw materials is 0.5 part of guar gum, 0.08 part of sodium hydroxide, 2 parts of oil-soluble resin particles, 1 part of crosslinking agent, 0.05
Part ammonium persulfate and water.
Well carries out the second day row's of returning situation after seam dictyosome product acid fracturing: 8:00 to 16:00 open flow drain, the control of 8 ㎜ oil nozzles are put
Spray, oil pressure 11.0MPa to 16.0MPa, casing pressure 5.4MPa to 0MPa, drain 90m3, add up drain 240m3, the row of returning leads 26.7%, pH
=5, return drain density: 1.11 g/cm3, it is in withered yellow, gas testing that chlorinity: 46273mg/L, light a fire flammable, flame high 5m to 6m
Yield is 5*105 m3/d。
In conclusion low slimy milk slippery water acid solution can reduce nearly well nearby acid solution is distally migrated resistance in crack in invention
Power, conducive to long and complex Fracture Systems are formed；Meanwhile natural plant gum liquid steering capability is strong, is easy to oxygen and breaks glue, can reduce steering liquid
To the secondary injury of reservoir, the volume increase of carbonatite acid fracturing wells and stable yields are achieved the purpose that.
The above technical features constitute embodiments of the present invention, can basis with stronger adaptability and implementation result
Actual needs increases and decreases non-essential technical characteristic, to meet the needs of different situations.
Claims (10)
1. a kind of Carbonate Reservoir seam dictyosome product acid fracturing method, it is characterised in that carry out by the following method: the first step, in 2m3/
Min to 3m3Under the pump note discharge capacity of/min, 50m is injected into carbonate oil gas field well3/ section is to 100m3The low slimy milk slippery water of/section
20min to 60min is reacted in acid solution, the low insulating liquid for replacing a wellbore volume, termination of pumping, and reaching realization reduces the low slimy milk near wellbore zone
Slippery water acid solution migration resistance；Second step, in 4m3/ min to 7m3Under the pump note discharge capacity of/min, infused into carbonate oil gas field well
Enter 150m3/ section is to 200m3The low slimy milk slippery water acid solution of/section carries out seam dictyosome product to the advantage fissure channel near perforated interval
Acidfracturing treatment；Third step is when the transformation degree in advantage crack reaches first segment injection rate in low slimy milk slippery water acid solution
100m3Second segment injection rate is 200m in/section, low slimy milk slippery water acid solution3When/section, in 4.5m3/ min to 9m3The pump of/min is infused
Under discharge capacity, 20m is pumped into carbonate oil gas field well3/ section is to 50m3/ section natural plant gum liquid, natural plant gum liquid enter advantage and split
It stitches in channel, advantage fissure channel temperature rises to 80 DEG C to 106 DEG C, causes plant glue solution body to form high viscous frozen glue, prevents subsequent
Low slimy milk slippery water acid solution is gone successively in advantage fissure channel, and low slimy milk slippery water acid solution starts changed course and enters disadvantage crack
In, complete the steering procedure of low slimy milk slippery water acid solution；4th step continues to be pumped into low slimy milk into carbonate oil gas field well smooth
Water acid solution, low slimy milk slippery water acid solution extends forward in new Fracture Systems, reaming is solubilized, completes seam dictyosome product acidfracturing treatment
Process；5th step, injects displacement fluid into carbonate oil gas field well, and closing well drives a well drain after 2 hours to 6 hours, tests oil gas
Yield.
2. Carbonate Reservoir seam dictyosome product acid fracturing method according to claim 1, it is characterised in that low slimy milk slippery water acid
The composition of raw materials of liquid in parts by weight, including 10 parts to 25 parts hydrochloric acid, 0.5 part to 3 parts corrosion inhibiter, 0.5 part to 1 portion lemon
Acid, 0.5 part to 3 portions cleanup additive, 0.5 part to 3 parts foaming agent, 0.1 part to 1 part gelling agent for acid fluid, 2 parts to 8 parts emulsifiers, 10 parts
To 20 parts of oil emulsions, the low slimy milk slippery water acid solution is by by the desired amount of hydrochloric acid, corrosion inhibiter, citric acid, cleanup additive, blistering
Agent, gelling agent for acid fluid, emulsifier and oil emulsion are mixed to get.
3. Carbonate Reservoir seam dictyosome product acid fracturing method according to claim 2, it is characterised in that corrosion inhibiter is imidazoline
Type corrosion inhibiter；Or/and cleanup additive is fluorine carbon type cleanup additive；Or/and foaming agent is fluorine carbon type foaming agent；Or/and acid
Liquid thickening agent be acrylamide monomer and it is other have acidproof salt resistance monomer by copolymerization form molecular weight be 600 to 10,000,000 it
Between polymer；Or/and emulsifier is nonionic emulsifier, HLB value is 14 to 19；Or/and oil emulsion is 0# diesel oil, kerosene
One of with light crude oil.
4. Carbonate Reservoir seam dictyosome product acid fracturing method according to claim 2 or 3, it is characterised in that emulsifier is polyoxy
Ethylene sorbierite lanolin derivative nonionic 14.0, gathers polyoxyethylene 20 sorbitan monooleate nonionic 15.0
One of ethylene oxide octadecyl alcolol nonionic 15.3, polyoxyethylene 20 sorbitan monolaurate nonionic 16.3 with
On.
5. Carbonate Reservoir seam dictyosome product acid fracturing method according to claim 1 or 2 or 3 or 4, it is characterised in that insulating liquid
The mixture formed for the water of 3 parts to 6 portions cleanup additives, 3 parts to 6 parts foaming agents and surplus.
6. Carbonate Reservoir described according to claim 1 or 2 or 3 or 4 or 5 stitches dictyosome product acid fracturing method, it is characterised in that low
Slimy milk slippery water acid solution corrosion inhibition rate is not higher than 0.5g/cm2.h, the viscosity of low slimy milk slippery water acid solution is not higher than 10mPa.s, low viscous
The surface tension of newborn slippery water acid solution is not higher than 25mN/m.
7. Carbonate Reservoir seam dictyosome product acid fracturing method according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterised in that
The composition of raw materials of natural plant gum liquid in parts by weight, including 0.35 part to 0.6 part plant gum powder, 0.03 part to 1 part pH value
Mediator agent, 0 part to 5 parts oil-soluble resin particle, 0.1 part to 2 parts crosslinking agent, 0.01 part to 0.1 part ammonium persulfate or persulfuric acid
Sodium, the natural plant gum liquid is by by the desired amount of plant gum powder, pH value mediator agent, oil-soluble resin particle, crosslinking agent, persulfuric acid
Ammonium or sodium peroxydisulfate are mixed to get.
8. Carbonate Reservoir seam dictyosome product acid fracturing method according to claim 7, it is characterised in that plant gum powder is guanidine glue
One or more of powder, sesbania powder, tonka bean powder, mushroom taro powder；Or/and pH value mediator agent is sodium hydroxide or carbonic acid acid sodium, plant
The pH value of glue body is 10 to 13；Or/and oil-soluble resin particle be rosin resin, gum dammar, oil-soluble phenolic resin,
One or more of Petropols and terpene resin, oil-soluble resin grain diameter are 20 mesh to 70 mesh；Or/and crosslinking agent is
One or more of borax, organic boron and organic zirconium.
9. Carbonate Reservoir described according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 stitches dictyosome product acid fracturing method, special
Sign is natural plant gum liquid when the reservoir temperature of Carbonate Reservoir is lower than 50 DEG C, and gelation time is 5min to 10min, in carbonic acid
When the reservoir temperature of salt reservoir is 80 DEG C to 120 DEG C, gelation time is 0.2min to 1min, and natural plant gum liquid is in Carbonate Reservoir
Reservoir temperature be 50 DEG C to 80 DEG C between when, gelation time be 1min to 3min.
10. Carbonate Reservoir described according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 stitches dictyosome product acid fracturing method,
It is characterized in that natural plant gum liquid is 500mPa.s to 1000mPa.s at adhesiveness, natural plant gum liquid is in Carbonate Reservoir
Under reservoir temperature, viscosity drops to not higher than 8 mPa.s after 4 hours to 8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385857.2A CN110029980A (en) | 2019-05-09 | 2019-05-09 | Carbonate Reservoir stitches dictyosome product acid fracturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385857.2A CN110029980A (en) | 2019-05-09 | 2019-05-09 | Carbonate Reservoir stitches dictyosome product acid fracturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110029980A true CN110029980A (en) | 2019-07-19 |
Family
ID=67241747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910385857.2A Pending CN110029980A (en) | 2019-05-09 | 2019-05-09 | Carbonate Reservoir stitches dictyosome product acid fracturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110029980A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656944A (en) * | 2022-03-29 | 2022-06-24 | 中海石油（中国）有限公司天津分公司 | Emulsion diverting acid system for high-temperature carbonate reservoir |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934651A (en) * | 1974-10-10 | 1976-01-27 | Exxon Production Research Company | Method of acidizing subterranean formations |
| CN104975840A (en) * | 2015-06-18 | 2015-10-14 | 中国石油化工股份有限公司 | Self-born acid composite acid fracturing process for high-temperature deep well carbonate rock reservoir |
| CN105275446A (en) * | 2014-06-30 | 2016-01-27 | 中国石油化工股份有限公司 | A volume fracturing modification method |
| CN106917619A (en) * | 2017-03-21 | 2017-07-04 | 中国石油天然气股份有限公司 | The temporary stall of slit formation carbonate reservoir to fracture support integration remodeling method |
| CN107216866A (en) * | 2017-06-14 | 2017-09-29 | 陕西延长石油(集团)有限责任公司研究院 | A kind of method that Carbonate Reservoir seam dictyosome accumulates acidfracturing treatment |
| CN109653723A (en) * | 2018-10-23 | 2019-04-19 | 克拉玛依科美利化工有限责任公司 | Increase the method for complex hydrocarbon layer seam net volume fracturing effect |
-
2019
- 2019-05-09 CN CN201910385857.2A patent/CN110029980A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934651A (en) * | 1974-10-10 | 1976-01-27 | Exxon Production Research Company | Method of acidizing subterranean formations |
| CN105275446A (en) * | 2014-06-30 | 2016-01-27 | 中国石油化工股份有限公司 | A volume fracturing modification method |
| CN104975840A (en) * | 2015-06-18 | 2015-10-14 | 中国石油化工股份有限公司 | Self-born acid composite acid fracturing process for high-temperature deep well carbonate rock reservoir |
| CN106917619A (en) * | 2017-03-21 | 2017-07-04 | 中国石油天然气股份有限公司 | The temporary stall of slit formation carbonate reservoir to fracture support integration remodeling method |
| CN107216866A (en) * | 2017-06-14 | 2017-09-29 | 陕西延长石油(集团)有限责任公司研究院 | A kind of method that Carbonate Reservoir seam dictyosome accumulates acidfracturing treatment |
| CN109653723A (en) * | 2018-10-23 | 2019-04-19 | 克拉玛依科美利化工有限责任公司 | Increase the method for complex hydrocarbon layer seam net volume fracturing effect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656944A (en) * | 2022-03-29 | 2022-06-24 | 中海石油（中国）有限公司天津分公司 | Emulsion diverting acid system for high-temperature carbonate reservoir |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106567702B (en) | Method for improving complexity index of deep shale gas crack | |
| CN107387053B (en) | Method for collaborative fracturing of main cracks and complex crack network of large channel | |
| CN104989361B (en) | A kind of method that auxiliary water horizontal well man-made fracture turns to transformation | |
| CN104520531B (en) | For micro- proppant of far field stimulation treatment | |
| CN104120999B (en) | Oil recovery method restraining channeling in CO2 flooding process in low-permeability fractured reservoir through two-stage channeling blocking | |
| CN105089596A (en) | Hydraulic fracturing treatment method of an unconventional reservoir oil and gas well | |
| CN104963672B (en) | A kind of diverting material that cleans blocks up the reservoir reconstruction method of borehole formation seam net temporarily | |
| US3747681A (en) | Hydraulic fracturing process using polyethylene oxide based fracturing fluid | |
| CN102606117B (en) | Air and nitrogen alternating displacement exploitation method for mid-deep zone low-permeability thin oil reservoir | |
| US3730273A (en) | Improved technique for injecting fluids into subterranean formations | |
| CN107255027A (en) | A kind of carbonate reservoir is combined remodeling method | |
| CN108661617A (en) | A kind of fracturing process for increasing high-temperature stratum and manually stitching net complexity | |
| CN105089603A (en) | Reservoir modifying method through forming crack network by temporary plugging turning in cracks | |
| CN103089228A (en) | Cross-linked acid and sand-carrying acid-fracturing method for ground with argillaceous dolomites | |
| CN105275446A (en) | A volume fracturing modification method | |
| CN106795750A (en) | For the steering of well treatment operation | |
| CN102022105A (en) | Large composite acid fracturing method of fracture cave type carbonate rock reservoir | |
| CN101353958A (en) | Acid fracturing process of oil gas well mining temperature control various mucic acid | |
| CN105041289A (en) | Method for forming multiple fractures by forced planar diverting of fracture opening being temporarily plugged | |
| CN109958426A (en) | A kind of fracturing process improving deep layer shale gas crack complexity | |
| CN109751033A (en) | A kind of fracturing process for tight sandstone reservoir | |
| CN106545324A (en) | A kind of method for pressing off the multiple horizontal bedding seams of shale gas | |
| CN112253066A (en) | Method for improving fracture complexity and transformation volume of deep shale gas | |
| CN105625981B (en) | A kind of method of medium to high permeable rate oil reservoir compound profile modification | |
| CN112796729B (en) | Quasi-dry method liquid supercritical CO 2 Acid fracturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190719 |
|
| RJ01 | Rejection of invention patent application after publication |