CN106285566A - A kind of air injection anticorrosion completion method and the inhibition acid solution wherein used - Google Patents
A kind of air injection anticorrosion completion method and the inhibition acid solution wherein used Download PDFInfo
- Publication number
- CN106285566A CN106285566A CN201610622072.9A CN201610622072A CN106285566A CN 106285566 A CN106285566 A CN 106285566A CN 201610622072 A CN201610622072 A CN 201610622072A CN 106285566 A CN106285566 A CN 106285566A
- Authority
- CN
- China
- Prior art keywords
- mass
- acid
- air injection
- inhibition
- level
- 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 34
- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000243 solution Substances 0.000 title claims abstract description 12
- 239000011440 grout Substances 0.000 claims abstract description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- 239000011651 chromium Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 5
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 claims description 4
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 13
- 239000007789 gas Substances 0.000 abstract description 6
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/02—Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells
-
- 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
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of air injection anticorrosion completion method and the inhibition acid solution of use thereof; the most serious for corroding during air injection; in gas injection well, oxygen corrosion can cause down-hole string and the general corrosion of surface line and serious local corrosion; the problem even causing the corrosion fracture of oil pipe; the present invention selects special substance sleeve pipe (1) completion; form protecting film (room temperature) with inhibition acid and use grout off at the external payzone of pit shaft, carrying out the inside and outside Combined Protection of pit shaft to solve this problem.
Description
Technical field
The present invention relates to a kind of air injection anticorrosion completion method, belong to field of petroleum exploitation.
Background technology
The air injection displacement of reservoir oil is the technology of a kind of effective raising recovery ratio, the most of increased attention, mesh
Before have tens oil fields applying this technology both at home and abroad, domestic Zhongyuan Oil Field and the application of Baise Oilfield scene show, air drives,
Air foam flooding shaft oil displacement efficiency is high, but corrodes more serious during air injection, and in gas injection well, oxygen corrosion can cause down-hole string
And the general corrosion of surface line and serious local corrosion, even cause the corrosion fracture of oil pipe, shorten the use of Oil/gas Well
In the life-span, cause huge economic loss.
Summary of the invention
In order to solve the problems referred to above that present technology exists, it is an object of the present invention to provide air injection anticorrosion completion side
Method, another purpose is to provide in air injection anticorrosion completion method the inhibition acid solution used.Selection of casing of the present invention (1) is complete
Well, forms protecting film (room temperature) with inhibition acid in pit shaft and uses grout off at the external payzone of pit shaft, carrying out pit shaft inside and outside
Close protection, prevent or reduce the Carbon Dioxide in Air corrosion to gas injection well well bore material, extend the service life of gas injection well.
A kind of air injection anticorrosion completion method, including selection of casing (1) completion, the ferrum element containing chromium selected by sleeve pipe used (1)
Steel pipe, wherein chromium 9～13 mass %, and use after entering under sleeve pipe (1) atomizing pump injection technology uniformly to be sprayed by inhibition acid solution
Being incident upon surface, form protecting film, the inhibition used each component prescription of acid includes hydrochloric acid 10～15 mass %, Fluohydric acid. 3～6 matter
Amount %, fluoboric acid 15～20 mass %, acetic acid 1～3 mass %, phosphatase 11～3 mass %, water surplus, then add grout off oil
Outside pipe.
Preferably, H level, K level, J level, C level or the L level during API cannula series selected by sleeve pipe used (1).
Preferably, adding the cement used by grout off oil pipe outside is C3A (tricalcium aluminate 3CaO Al2O3) percent mass
Than content 10-20% cement.
In air injection anticorrosion completion method use inhibition acid solution, each component prescription include hydrochloric acid 10～15 mass %,
Fluohydric acid. 3～6 mass %, fluoboric acid 15～20 mass %, acetic acid 1～3 mass %, phosphatase 11～3 mass %, water surplus.
Described atomizing pump injection technology, is filled in high-pressure pump including the corrosion inhibiter in corrosion inhibiter storage tank (gravity tank), warp
Crossing high pressure and be sent to fog-spray nozzle, corrosion inhibiter is atomization at fog-spray nozzle, is ejected into well head oil sleeve pipe (1) annular space (or pipeline
In), the corrosion inhibiter drop more uniform full well head oil sleeve pipe (1) annular space (or in pipeline) of energy after atomization, these drop energy
More uniform it is attached on steel surface, forms protecting film.
Described add concretely comprise the following steps outside grout off oil pipe from sleeve pipe (1) to pit shaft inject cement, be depressed into destination layer
In, part clamp-ons stratum.
Described completion method is additionally included in position, oil reservoir upper, middle and lower perforation again (protective effect), and perforation requires as bottom
3～5 meters, middle part 1～2 meters, top 1～2 meters, perforation three sections.
The ferrum element steel pipe containing chromium selected by the sleeve pipe (1) of the present invention, and with using atomizing pump to inject work after entering under sleeve pipe (1)
Inhibition acid solution is uniformly sprayed to surface by skill, forms protecting film, and the Acidulent film being internally formed at pit shaft is weak to carbon dioxide etc.
Sour gas, solution have stronger antiseptic power, can be internally formed fine and close strong Acidulent film at pit shaft, can effectively prevent weak acid pair
The erosion of pipe；The protection of oil pipe is mainly by externally reinforced cement, prevents gas attack sleeve pipe (1) outside, and has certain
Insulation effect so that the part such as down-hole casing (1), oil pipe keeps at a certain temperature, adds the service life of equipment.
Accompanying drawing explanation
Fig. 1 perforation schematic diagram
Fig. 2 completion schematic diagram
Fig. 3 atomizing pump injection technology flow chart
In figure: 1. perforation 6. bottom perforation 7. in the middle part of sleeve pipe 2. grout off layer 3. 102 type perforating gun 4. top perforation 5.
Artificial bottom of a well 8. oil reservoir 9. rustless steel packer 10. rustless steel steam injection string 11. horn mouth
Detailed description of the invention
Embodiment 1
A kind of air injection anticorrosion completion method, including: selection of casing (1) completion, the ferrum element containing chromium selected by sleeve pipe used (1)
Steel pipe, wherein mass % Han chromium 10, and uniformly spray to surface with inhibition acid solution after entering under sleeve pipe (1), form protecting film,
Inhibition acid-specific formula used include hydrochloric acid 11 mass %, Fluohydric acid. 4 mass %, fluoboric acid 16 mass %, acetic acid 2 mass %,
Phosphoric acid 2 mass %, water surplus %, then add outside grout off oil pipe.
The H level in API cannula series selected by sleeve pipe (1).
Adding the cement used by grout off oil pipe outside is C3A (tricalcium aluminate 3CaO Al2O3) mass percentage content
The cement of 10%.
Embodiment 2
A kind of air injection anticorrosion completion method, including: selection of casing (1) completion, the ferrum element containing chromium selected by sleeve pipe used (1)
Steel pipe, wherein mass % Han chromium 12, and uniformly spray to surface with inhibition acid solution after entering under sleeve pipe (1), form protecting film,
Inhibition acid-specific formula used includes hydrochloric acid 13 mass %, Fluohydric acid. 5 mass %, fluoboric acid 18 mass %, acetic acid 2.5 matter
Amount %, phosphoric acid 2.5 mass %, water surplus, then add outside grout off oil pipe.
The K level in API cannula series selected by sleeve pipe (1).
Adding the cement used by grout off oil pipe outside is C3A (tricalcium aluminate 3CaO Al2O3) mass percentage content
The cement of 15%.
Embodiment 3
A kind of air injection anticorrosion completion method, including: selection of casing (1) completion, the ferrum element containing chromium selected by sleeve pipe used (1)
Steel pipe, wherein mass % Han chromium 15, and uniformly spray to surface with inhibition acid solution after entering under sleeve pipe (1), form protecting film,
Inhibition acid-specific formula used include hydrochloric acid 15 mass %, Fluohydric acid. 6 mass %, fluoboric acid 20 mass %, acetic acid 3 mass %,
Phosphoric acid 3 mass %, water surplus, then add outside grout off oil pipe.
The L level in API cannula series selected by sleeve pipe (1).
Adding the cement used by grout off oil pipe outside is C3A (tricalcium aluminate 3CaO Al2O3) mass percentage content
The cement of 18%.
Claims (4)
1. an air injection anticorrosion completion method, it is characterised in that including: selection of casing (1) completion, sleeve pipe used (1) is selected
Ferrum element steel pipe containing chromium, wherein chromium 9-13 mass %, and use after entering under sleeve pipe (1) atomizing pump injection technology by molten for inhibition acid
Liquid uniformly sprays to surface, forms protecting film, and the inhibition used each component prescription of acid includes hydrochloric acid 10～15 mass %, Fluohydric acid. 3
～6 mass %, fluoboric acid 15～20 mass %, acetic acid 1～3 mass %, phosphatase 11～3 mass %, water surplus, then add cement
Outside closure oil pipe.
Method the most according to claim 1, it is characterised in that sleeve pipe (1) selects the H level in API cannula series, K level, J
Level, C level or L level.
Method the most according to claim 1, it is characterised in that adding the cement used by grout off oil pipe outside is C3A matter
The cement of amount degree 10%～20%.
4. in air injection anticorrosion completion method use inhibition acid solution, it is characterised in that each component prescription include hydrochloric acid 10～
15 mass %, Fluohydric acid. 3～6 mass %, fluoboric acid 15～20 mass %, acetic acid 1～3 mass %, phosphatase 11～3 mass %, water
Surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610622072.9A CN106285566A (en) | 2016-08-01 | 2016-08-01 | A kind of air injection anticorrosion completion method and the inhibition acid solution wherein used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610622072.9A CN106285566A (en) | 2016-08-01 | 2016-08-01 | A kind of air injection anticorrosion completion method and the inhibition acid solution wherein used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106285566A true CN106285566A (en) | 2017-01-04 |
Family
ID=57664216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610622072.9A Pending CN106285566A (en) | 2016-08-01 | 2016-08-01 | A kind of air injection anticorrosion completion method and the inhibition acid solution wherein used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106285566A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837247A (en) * | 2017-03-19 | 2017-06-13 | 西南石油大学 | A kind of Oil/gas Well oil jacket annular space corrosion inhibiter fountain fills technique and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343951A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Drilling and cementing slim hole wells |
| CN1277240A (en) * | 2000-06-21 | 2000-12-20 | 中国石油天然气总公司石油管材研究所 | Corrosion inhibitor resisting CO2 corrosion for oil field |
| CN1632041A (en) * | 2003-12-22 | 2005-06-29 | 吐哈石油勘探开发指挥部技术监测中心 | Anticorrosion preservative agent special for sleeve for oilfield well drilling and well cementing |
| CN101285378A (en) * | 2008-05-09 | 2008-10-15 | 大庆汇联技术开发有限公司 | HAS composite plug removal technology |
| CN102418103A (en) * | 2011-12-13 | 2012-04-18 | 长沙市中蓝清洗技术有限公司 | Chemical for cleaning boiler |
| CN102454381A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Oil-gas reservoir barefoot well cementing and completion method and device |
| CN103089306A (en) * | 2011-11-03 | 2013-05-08 | 大港油田集团有限责任公司 | Method for constructing underground gas storage by depleted oil-gas reservoir |
| CN103410474A (en) * | 2013-08-07 | 2013-11-27 | 西安石油大学 | Corrosion control method for annular space tubing and casings of oil field water injection well |
-
2016
- 2016-08-01 CN CN201610622072.9A patent/CN106285566A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343951A (en) * | 1992-10-22 | 1994-09-06 | Shell Oil Company | Drilling and cementing slim hole wells |
| CN1277240A (en) * | 2000-06-21 | 2000-12-20 | 中国石油天然气总公司石油管材研究所 | Corrosion inhibitor resisting CO2 corrosion for oil field |
| CN1632041A (en) * | 2003-12-22 | 2005-06-29 | 吐哈石油勘探开发指挥部技术监测中心 | Anticorrosion preservative agent special for sleeve for oilfield well drilling and well cementing |
| CN101285378A (en) * | 2008-05-09 | 2008-10-15 | 大庆汇联技术开发有限公司 | HAS composite plug removal technology |
| CN102454381A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Oil-gas reservoir barefoot well cementing and completion method and device |
| CN103089306A (en) * | 2011-11-03 | 2013-05-08 | 大港油田集团有限责任公司 | Method for constructing underground gas storage by depleted oil-gas reservoir |
| CN102418103A (en) * | 2011-12-13 | 2012-04-18 | 长沙市中蓝清洗技术有限公司 | Chemical for cleaning boiler |
| CN103410474A (en) * | 2013-08-07 | 2013-11-27 | 西安石油大学 | Corrosion control method for annular space tubing and casings of oil field water injection well |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837247A (en) * | 2017-03-19 | 2017-06-13 | 西南石油大学 | A kind of Oil/gas Well oil jacket annular space corrosion inhibiter fountain fills technique and device |
| CN106837247B (en) * | 2017-03-19 | 2019-02-22 | 西南石油大学 | A kind of oil/gas well oil jacket annulus corrosion inhibiter fountain filling technique and device |
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Application publication date: 20170104 |