CN103864389B - A kind of oilfield oil well blocks up the plugging agent of borehole, sleeve plugging - Google Patents
A kind of oilfield oil well blocks up the plugging agent of borehole, sleeve plugging Download PDFInfo
- Publication number
- CN103864389B CN103864389B CN201210526578.1A CN201210526578A CN103864389B CN 103864389 B CN103864389 B CN 103864389B CN 201210526578 A CN201210526578 A CN 201210526578A CN 103864389 B CN103864389 B CN 103864389B
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- weight parts
- weight part
- plugging
- oil well
- borehole
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- 239000003129 oil well Substances 0.000 title claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 16
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 27
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- 229910052925 anhydrite Inorganic materials 0.000 claims abstract description 10
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 10
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 10
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 10
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 10
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims abstract description 9
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004327 boric acid Substances 0.000 claims abstract description 9
- 229940095064 tartrate Drugs 0.000 claims abstract description 9
- 239000011396 hydraulic cement Substances 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000002981 blocking agent Substances 0.000 abstract description 10
- 239000004568 cement Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004904 shortening Methods 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
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
-
- 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
-
- 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)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides the plugging agent that a kind of oilfield oil well blocks up borehole, sleeve plugging, this plugging agent is made up of blocking agent and retardant, the hydraulic cement powder material that described blocking agent is made up of the sulfoaluminate clinker of 40-80 weight part or the anhydrous sodium sulphate of fluoaluminate grog, the anhydrite of 5-20 weight part, the SILICA FUME of 10-40 weight part and 5-10 weight part; The retardant aqueous solution that described retardant is made up of the water of the tartrate of 0.1-5 weight part, the citric acid of 0.1-15 weight part, the boric acid of 5-10 weight part and 80-95 weight part.
Description
Technical field
The present invention relates to the plugging material that oilfield oil well blocks up borehole, plug operation played by sleeve plugging, oil and water well cement.
Background technology
Oil field, through exploitation for many years, particularly enters ultra-high water-containing after date, there is the contradiction that the aspects such as layers apart system is many, interlayer difference is large penetrated by oil well on the one hand, also there is the many problems of casing failure on the other hand.For this reason, in conjunction with advantages such as cement class blocking agent plugging strength are high, cheap, oil field increases the research application dynamics of cement class blocking agent in oil well plugging borehole and sleeve plugging, and actively developed large quantity research and improvement for produced problem in enforcement, on the basis of common G level oil well cement and ultra-fine oil well cement, by adding various auxiliary agent, have developed borehole plugging agent and the sleeve plugging agent of seriation, achieving good effect in application at the scene.
But oil well cement early strength increases comparatively slow, and the growth of ultimate compression strength daily calculates, and needs Hou Ning can bore plug after 3 ~ 5 days after plugging construction completes according to well temperature, causes shutoff cycle and operation to account for wasting of the ineffective times such as product.
Summary of the invention
Object of the present invention is intended to overcome the deficiencies in the prior art, there is provided a kind of and adopt inorganic materials, nontoxic, significantly shorten the Hou Ning time, improve operation timeliness, greatly shorten the plugging agent that oilfield oil well that well workover duration and operation account for the product time blocks up borehole, sleeve plugging.
Object of the present invention realizes by following technical measures:
Oilfield oil well of the present invention blocks up borehole, the plugging agent of sleeve plugging is made up of blocking agent and retardant, the hydraulic cement powder material that described blocking agent is made up of the sulfoaluminate clinker of 40-80 weight part or the anhydrous sodium sulphate of fluoaluminate grog, the anhydrite of 5-20 weight part, the SILICA FUME of 10-40 weight part and 5-10 weight part; The retardant aqueous solution that described retardant is made up of the water of the tartrate of 0.1-5 weight part, the citric acid of 0.1-15 weight part, the boric acid of 5-10 weight part and 80-95 weight part.
Object of the present invention also realizes by following technical measures:
Described hydraulic cement powder material specific surface area>=360m
2/ Kg; Described retardant solution density is 1.6-1.8g/cm
3; Described blocking agent: retardant=1:0.5-0.7 weight part; Described sulfoaluminate clinker or fluoaluminate grog are 60-70 weight part, anhydrite is 8-12 weight part, SILICA FUME is 10-25 weight part, anhydrous sodium sulphate is 6-8 weight part; Described tartrate is 1-2 weight part, citric acid is 2-3 weight part, boric acid is 6-8 weight part, water is 85-90 weight part; Described retardant solution density is 1.6-1.7g/cm
3.
The present invention adopts the grog based on sulfoaluminate clinker or fluoaluminate grog, adds anhydrite, SILICA FUME and anhydrous sodium sulphate, through being mixed and finely ground the hydraulic cementing materials that condensation is fast, hour gain in strength is fast made.
When Oil Field uses plugging agent of the present invention, according to blocking agent: retardant=1:0.4-0.8 weight, blocking agent water and retardant are made into the slurry of certain density, the presetting period is regulated with retardant, 30min ~ 30h is adjustable presetting period at normal temperatures, at 30 ~ 90 DEG C of temperature, presetting period, 0.5h ~ 2h was adjustable, ensure extemporaneous preparation and site operation safety, inject in oil and water well with pump truck, after construction terminates, " initial set " be i.e. " final set ", fast solidifying after final set, hour intensity is high, the growth of ultimate compression strength calculates by the hour, i.e. so-called " hour cement ", there is early-strong-fast-hard but the feature of " firmly not coagulating soon soon ".
Oilfield oil well of the present invention blocks up borehole, sleeve plugging plugging agent adopts inorganic materials, nontoxic, easy to use.Test-results shows, after final set, 1h ultimate compression strength can reach 20MPa, the ultimate compression strength of 2 hours is 4 times of G level oil well cement, construction terminates just can bore plug in latter 2 hours, and after construction, the Hou Ning time can shorten to 1 ~ 2 hour from present 3 ~ 5 days and can bore plug, significantly shortened the Hou Ning time, improve operation timeliness, shortening well workover duration and operation account for the product time greatly, are major technological breakthroughs, have significant social and economic benefits.
Embodiment
ST21136 well, treating packer is tested cover and is found that sleeve pipe leaks at 67-335m place cover, and successively use the 50 tons of leak stopping of G level oil well cement, because leak source is more shallow, the Hou Ning time is 5 days, just starts to bore plug after 5 days.During follow-up sand control construction, occur again new leak source, under meter is looked for Lou in 69-81m leakage, determines to use oilfield oil well of the present invention to block up borehole, sleeve plugging plugging agent shortens the Hou Ning time.Blocking agent slurry density 1.7-1.75g/cm
3, regulate presetting period 40min with retardant, use oilfield oil well of the present invention to block up borehole, sleeve plugging plugging agent 5 tons altogether, operation pressure rises to 10MPa by 0MPa, construction terminates within latter 2 hours, to start to bore plug, and drilling speed 4 hours/root (G level oil well cement drilling speed 1 hour/root), 76m drills.The success of the test of this well shows: oilfield oil well of the present invention blocks up borehole, the construction of sleeve plugging plugging agent terminates just can bore plug in latter 2 hours, and the Hou Ning time can shorten to 1 ~ 2 hour from original 3 ~ 5 days; From drilling speed, 4 times that oilfield oil well of the present invention blocks up borehole, the sleeve plugging plugging agent ultimate compression strength of 2 hours is G level oil well cement.
Embodiment 1:
The anhydrous sodium sulphate of the sulfoaluminate clinker or fluoaluminate grog, the anhydrite of 5 weight parts, the SILICA FUME of 40 weight parts and 5 weight parts of first getting 80 weight parts makes specific surface area>=360m
2the hydraulic cementing materials of/Kg; It is 1.8g/cm that the water getting the tartrate of 5 weight parts, the citric acid of 0.1 weight part, the boric acid of 10 weight parts and 80 weight parts makes density
3the retardant aqueous solution; When Oil Field uses, then according to hydraulic cementing materials: it is 1.75g/cm that the proportioning of the retardant aqueous solution=1:0.4 weight part makes density
3, water cement ratio is the slurry of 0.5, inject in oil and water well with pump truck.
Embodiment 2:
The anhydrous sodium sulphate of the sulfoaluminate clinker or fluoaluminate grog, the anhydrite of 20 weight parts, the SILICA FUME of 10 weight parts and 10 weight parts of first getting 40 weight parts makes specific surface area>=360m
2the hydraulic cementing materials of/Kg; It is 1.6g/cm that the water getting the tartrate of 0.1 weight part, the citric acid of 15 weight parts, the boric acid of 5 weight parts and 95 weight parts makes density
3the retardant aqueous solution; When Oil Field uses, then according to hydraulic cementing materials: it is 1.6g/cm that the proportioning of the retardant aqueous solution=1:0.8 weight part makes density
3, water cement ratio is the slurry of 0.7, inject in oil and water well with pump truck.
Embodiment 3:
The anhydrous sodium sulphate of the sulfoaluminate clinker or fluoaluminate grog, the anhydrite of 12 weight parts, the SILICA FUME of 25 weight parts and 8 weight parts of first getting 60 weight parts makes specific surface area>=360m
2the hydraulic cementing materials of/Kg; It is 1.7g/cm that the water getting the tartrate of 3 weight parts, the citric acid of 7 weight parts, the boric acid of 7 weight parts and 85 weight parts makes density
3the retardant aqueous solution.When Oil Field uses, then according to hydraulic cementing materials: it is 1.7g/cm that the proportioning of the retardant aqueous solution=1:0.6 weight part makes density
3, water cement ratio is the slurry of 0.6, inject in oil and water well with pump truck.
Embodiment 4:
The anhydrous sodium sulphate of the sulfoaluminate clinker or fluoaluminate grog, the anhydrite of 12 weight parts, the SILICA FUME of 10 weight parts and 8 weight parts of first getting 60 weight parts makes specific surface area>=360m
2the hydraulic cementing materials of/Kg; It is 1.6g/cm that the water getting the tartrate of 2 weight parts, the citric acid of 3 weight parts, the boric acid of 6 weight parts and 90 weight parts makes density
3the retardant aqueous solution.
Embodiment 5:
The anhydrous sodium sulphate of the sulfoaluminate clinker or fluoaluminate grog, the anhydrite of 8 weight parts, the SILICA FUME of 25 weight parts and 6 weight parts of first getting 70 weight parts makes specific surface area>=360m
2the hydraulic cementing materials of/Kg; It is 1.7g/cm that the water getting the tartrate of 1 weight part, the citric acid of 2 weight parts, the boric acid of 8 weight parts and 85 weight parts makes density
3the retardant aqueous solution; Again according to hydraulic cementing materials.
Claims (1)
1. an oilfield oil well blocks up the plugging agent of borehole, sleeve plugging, this plugging agent is made up of hydraulic cement powder material and the retardant aqueous solution, it is characterized in that described hydraulic cement powder material is made up of the sulfoaluminate clinker of 60 weight parts or the anhydrous sodium sulphate of fluoaluminate grog, the anhydrite of 12 weight parts, the SILICA FUME of 25 weight parts and 8 weight parts; The described retardant aqueous solution is made up of the water of the tartrate of 3 weight parts, the citric acid of 7 weight parts, the boric acid of 7 weight parts and 85 weight parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526578.1A CN103864389B (en) | 2012-12-10 | 2012-12-10 | A kind of oilfield oil well blocks up the plugging agent of borehole, sleeve plugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526578.1A CN103864389B (en) | 2012-12-10 | 2012-12-10 | A kind of oilfield oil well blocks up the plugging agent of borehole, sleeve plugging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103864389A CN103864389A (en) | 2014-06-18 |
| CN103864389B true CN103864389B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210526578.1A Active CN103864389B (en) | 2012-12-10 | 2012-12-10 | A kind of oilfield oil well blocks up the plugging agent of borehole, sleeve plugging |
Country Status (1)
| Country | Link |
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| CN (1) | CN103864389B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2016361765A1 (en) * | 2015-11-30 | 2018-05-10 | Knauf Gips Kg | Additive for gypsum building materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1757697A (en) * | 2005-11-07 | 2006-04-12 | 刘茂平 | Seal stoppage agent for oil-well |
| CN101522853A (en) * | 2006-08-07 | 2009-09-02 | 普拉德研究及开发股份有限公司 | Pumpable geopolymer formulation for oilfield application |
-
2012
- 2012-12-10 CN CN201210526578.1A patent/CN103864389B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1757697A (en) * | 2005-11-07 | 2006-04-12 | 刘茂平 | Seal stoppage agent for oil-well |
| CN101522853A (en) * | 2006-08-07 | 2009-09-02 | 普拉德研究及开发股份有限公司 | Pumpable geopolymer formulation for oilfield application |
Non-Patent Citations (1)
| Title |
|---|
| "国内外油井水泥和外加剂现状及发展趋势";黄柏宗 等;《钻井液与完井液》;19951231;第12卷(第6期);第53-72页 * |
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| Publication number | Publication date |
|---|---|
| CN103864389A (en) | 2014-06-18 |
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