CN108314996A - Drilling fluid sealing agent - Google Patents
Drilling fluid sealing agent Download PDFInfo
- Publication number
- CN108314996A CN108314996A CN201810091219.5A CN201810091219A CN108314996A CN 108314996 A CN108314996 A CN 108314996A CN 201810091219 A CN201810091219 A CN 201810091219A CN 108314996 A CN108314996 A CN 108314996A
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- Prior art keywords
- drilling fluid
- sealing agent
- fluid sealing
- mesh
- sheet
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Classifications
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- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
-
- 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
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses one kind while ensureing oil base drilling fluid emulsion-breaking voltage, reduces the drilling fluid sealing agent of wastage.The drilling fluid sealing agent, composition include：Sheet or poly- 4 200 mesh of butyl ester of the rigidity of particle, 4 200 mesh of mica sheet, calcium carbonate and polypropylene fibre；The mass percent wherein respectively formed is：The poly- butyl ester sheet of rigidity or 4 200 mesh of particle：30%~60%, 4 200 mesh of mica sheet：30%~60%, calcium carbonate：4%~12%, polypropylene fibre：1%~3%.Moderate using drilling fluid sealing agent product autologous density, acid-soluble ratio, anti-pressure ability is strong, wastage is small；With good application effect；It is nontoxic, non-environmental-pollution, while being suitable for water base, oil-base mud；To oil base drilling fluid, other performances have no adverse effects, and compatibility is preferable；There is continual and steady effect in a long time, be a kind of sealing agent agent of function admirable.
Description
Technical field
The present invention relates to drilling leakage blockage field, especially a kind of drilling fluid sealing agent.
Background technology
It is well-known：Sealing agent various types on the market at present, as drill-feeding plugging agent, compound leakage stop agent, bridge plug are stifled
Agent etc. is leaked, granular size and material are different.Common material has a fibre (such as paper, cotton seed hulls), and particulate matter is (as hard
Shell), cellulose, natural plant gum, poly-pentose etc..
Existing sealing agent has the following problems：1. bearing capacity is not all right, plugging effect is poor；2. mud property is influenced, it is special
It is not oil-base mud performance, adsorbs emulsifier, reduces emulsion-breaking voltage；3. material rigidity itself is not enough, it is existing easily to occur repeatedly leakage
As.
Invention content
Technical problem to be solved by the invention is to provide one kind while ensureing oil base drilling fluid emulsion-breaking voltage, reduces
The drilling fluid sealing agent of wastage.
The technical solution adopted by the present invention to solve the technical problems is：Drilling fluid sealing agent, composition include：Sheet
Or the poly- butyl ester 4-200 mesh of rigidity, mica sheet 4-200 mesh, calcium carbonate and the polypropylene fibre of particle；The quality wherein respectively formed
Percentage is：The poly- butyl ester sheet of rigidity or particle 4-200 mesh：30%~60%, mica sheet 4-200 mesh：30%~60%, carbonic acid
Calcium：4%~12%, polypropylene fibre：1%~3%.
Preferably, the mass percent respectively formed is：The poly- butyl ester sheet of rigidity or particle 4-200 mesh：40%~50%, cloud
Master slice 4-200 mesh：40%~50%, calcium carbonate：6%~10%, polypropylene fibre：1%~3%.
Preferably, the mass percent respectively formed is：The poly- butyl ester sheet of rigidity or particle 4-200 mesh：42%~48%, cloud
Master slice 4-200 mesh：42%~48%, calcium carbonate：7%~9%, polypropylene fibre：1%~3%.
Preferably, the mass percent respectively formed is：The poly- butyl ester sheet of rigidity or particle 4-200 mesh：45%, mica sheet 4-
200 mesh：45%, calcium carbonate：8%, polypropylene fibre：2%.
Further, the particle size range of drilling fluid sealing agent is 0.0745mm~5.0mm.
Preferably, the particle size range of drilling fluid sealing agent is 0.0745mm~0.45mm.
Preferably, the particle size range of drilling fluid sealing agent is 0.45mm~0.90mm.
Preferably, the particle size range of drilling fluid sealing agent is 0.90mm~5.00mm.
The beneficial effects of the invention are as follows：Drilling fluid sealing agent of the present invention relative to existing sealing agent have with
Lower advantage：
1, product autologous density, acid-soluble ratio are moderate, and anti-pressure ability is strong, wastage is small；With good application effect；
2, nontoxic, non-environmental-pollution, while being suitable for water base, oil-base mud；
3, to oil base drilling fluid, other performances have no adverse effects, and compatibility is preferable；
4, there is continual and steady effect in a long time, be a kind of sealing agent of function admirable.
Specific implementation mode
Drilling fluid sealing agent of the present invention, composition include：Sheet or the poly- butyl ester 4-200 mesh of the rigidity of particle,
Mica sheet 4-200 mesh, calcium carbonate and polypropylene fibre；The mass percent wherein respectively formed is：The rigidity of sheet or particle
Poly- butyl ester sheet or particle 4-200 mesh：30%~60%, mica sheet 4-200 mesh：30%~60%, calcium carbonate：4%~12%,
Polypropylene fibre：1%~3%.
Since drilling fluid of the present invention is by mass percent with sealing agent：Sheet or the poly- butyl ester piece of the rigidity of particle
Shape or particle 4-200 mesh：30%~60%, mica sheet 4-200 mesh：30%~60%, calcium carbonate：4%~12%, polypropylene is fine
Dimension：1%~3% at being grouped as, therefore product autologous density, acid-soluble ratio are moderate, and anti-pressure ability is strong, wastage is small；With good
Good application effect；It is nontoxic, non-environmental-pollution, while being suitable for water base, oil-base mud；Invariably to oil base drilling fluid other performances
Good influence, compatibility are preferable；There is continual and steady effect in a long time, be a kind of sealing agent of function admirable.
Further, the mass percent respectively formed is：The poly- butyl ester sheet of rigidity or particle 4-200 mesh：40%~50%,
Mica sheet 4-200 mesh：40%~50%, calcium carbonate：6%~10%, polypropylene fibre：1%~3%.
Further, the mass percent respectively formed is：The poly- butyl ester sheet of rigidity or particle 4-200 mesh：42%~
48%, mica sheet 4-200 mesh：42%~48%, calcium carbonate：7%~9%, polypropylene fibre：1%~3%.
Specifically, the mass percent respectively formed is：The poly- butyl ester sheet of rigidity or particle 4-200 mesh：45%, mica sheet 4-
200 mesh：45%, calcium carbonate：8%, polypropylene fibre：2%.
Further, the particle size range of drilling fluid sealing agent is 0.0745mm~5.0mm.
Still more preferably, the particle size range of drilling fluid sealing agent is 0.0745mm~0.45mm.
Another preferred, the particle size range of drilling fluid sealing agent is 0.45mm~0.90mm.
Another preferred, the particle size range of drilling fluid sealing agent is 0.90mm~5.00mm.
With reference to embodiment, the present invention is further described.
Embodiment one：
30 parts of the poly- butyl ester sheet of rigidity or particle are taken, 60 parts of mica sheet, 9 parts of calcium carbonate, 1 part of polypropylene fibre is uniform to be mixed
It closes.It can produce " drilling fluid sealing agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screen so that
The grain size of drilling fluid sealing agent is 0.0745mm~5.0mm.
Embodiment two：
60 parts of the poly- butyl ester sheet of rigidity or particle are taken, 30 parts of mica sheet, 8 parts of calcium carbonate, 2 parts of polypropylene fibre is uniform to be mixed
It closes.It can produce " drilling fluid sealing agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screen so that
The grain size of drilling fluid sealing agent is 0.0745mm~0.45mm.
Embodiment three：
40 parts of the poly- butyl ester sheet of rigidity or particle are taken, 45 parts of mica sheet, 12 parts of calcium carbonate, 3 parts of polypropylene fibre is uniform to be mixed
It closes.It can produce " drilling fluid sealing agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screen so that
The grain size of drilling fluid sealing agent is 0.45mm~0.90mm.
Example IV：
40 parts of the poly- butyl ester sheet of rigidity or particle are taken, 50 parts of mica sheet, 7 parts of calcium carbonate, 3 parts of polypropylene fibre is uniform to be mixed
It closes.It can produce " drilling fluid sealing agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screen so that
The grain size of drilling fluid sealing agent is 0.90mm~5.00mm.
Embodiment five：
43 parts of the poly- butyl ester sheet of rigidity or particle are taken, 50 parts of mica sheet, 4 parts of calcium carbonate, 3 parts of polypropylene fibre is uniform to be mixed
It closes.It can produce " drilling fluid sealing agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screen so that
The grain size of drilling fluid sealing agent is 0.90mm~5.00mm.
Embodiment six：
48 parts of the poly- butyl ester sheet of rigidity or particle are taken, 42 parts of mica sheet, 9 parts of calcium carbonate, 1 part of polypropylene fibre is uniform to be mixed
It closes.It can produce " drilling fluid sealing agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screen so that
The grain size of drilling fluid sealing agent is 0.45mm~0.90mm.
Embodiment seven：
42 parts of the poly- butyl ester sheet of rigidity or particle are taken, 48 parts of mica sheet, 7 parts of calcium carbonate, 3 parts of polypropylene fibre is uniform to be mixed
It closes.It can produce " drilling fluid sealing agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screen so that
The grain size of drilling fluid sealing agent is 0.45mm~0.90mm.
Embodiment eight：
45 parts of the poly- butyl ester sheet of rigidity or particle are taken, 45 parts of mica sheet, 8 parts of calcium carbonate, 2 parts of polypropylene fibre is uniform to be mixed
It closes.It can produce " drilling fluid sealing agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screen so that
The grain size of drilling fluid sealing agent is 0.0745mm~0.45mm.
Comparative example one
28 parts of the poly- butyl ester sheet of rigidity or particle are taken, 55 parts of mica sheet, 13 parts of calcium carbonate, 4 parts of polypropylene fibre is uniform to be mixed
It closes.It is made " drilling fluid sealing agent ".Then " drilling fluid sealing agent " be spray-dried, crushed, being screened so that drilling well
The grain size of liquid sealing agent is 0.0745mm~0.45mm.
Comparative example two
Take 55 parts of the poly- butyl ester sheet of rigidity or particle, 28 parts of mica sheet, 17 parts of calcium carbonate." drilling fluid leak stopping is made
Agent ".Then " drilling fluid sealing agent " is spray-dried, crushed, screened so that the grain size of drilling fluid sealing agent is
0.90mm~5.00mm.
Comparative example three
65 parts of the poly- butyl ester sheet of rigidity or particle are taken, 25 parts of mica sheet, 4 parts of calcium carbonate, 6 parts of polypropylene fibre is uniform to be mixed
It closes.It is made " drilling fluid sealing agent ".Then " drilling fluid sealing agent " be spray-dried, crushed, being screened so that drilling well
The grain size of liquid sealing agent is 0.45mm~0.90mm.
Comparative example four
25 parts of the poly- butyl ester sheet of rigidity or particle are taken, 65 parts of mica sheet, 3 parts of calcium carbonate, 7 parts of polypropylene fibre is uniform to be mixed
It closes.It is made " drilling fluid sealing agent ".Then " drilling fluid sealing agent " be spray-dried, crushed, being screened so that drilling well
The grain size of liquid sealing agent is 0.90mm~5.00mm.
To " the drilling fluid sealing agent " that is obtained in above-described embodiment and comparative example by following detection method to its performance
It is detected.
Specific test method：
1, base slurry configuration：3000mL5# white oils are taken, 90g oil base drilling fluids pulping is separately added under electric stirring with organic
Soil, 150g oil base drilling fluids emulsifier glycerin monostearate, 90g calcium oxide, 120g oil base drilling fluids fluid loss additive oil
Soluble resin, a concentration of 26% calcium chloride solution 600mL, electric stirring 60min, be added 8200g blanc fixes, continue it is electronic
Stir 30min, closed static 16h.
2, it tests：With the emulsion-breaking voltage of base slurry when leak stopping instrument test base slurry wastage and 50 DEG C after base slurry stirring 30min；To
It is 0.0745mm~0.45mm this product 300g that particle size range is added in base slurry, and particle size range is 0.45mm~0.90mm this products
300g, particle size range are 0.90mm~5.00mm this product 300g, use leak stopping instrument test specimens to starch wastage and 50 after stirring 30min
DEG C when sample slurry emulsion-breaking voltage.
The performance parameter of the embodiment and comparative example obtained by above-mentioned detection method is as shown in table 1.
Table 1：The performance parameter of drilling fluid sealing agent
It can be seen that from the data in table 1 when drilling fluid sealing agent, wherein the mass percent respectively formed is：Sheet
Or the poly- butyl ester sheet of rigidity or particle 4-200 mesh of particle：30%~60%, mica sheet 4-200 mesh：30%~60%, carbonic acid
Calcium：4%~12%, polypropylene fibre：1%~3%；When significantly reduce wastage, and keep oil base drilling fluid substantially
Emulsion-breaking voltage is basically unchanged.Simultaneously in drilling fluid sealing agent, wherein the mass percent respectively formed is：The poly- butyl ester sheet of rigidity
Or particle 4-200 mesh：45%, mica sheet 4-200 mesh：45%, calcium carbonate：8%, polypropylene fibre：When 2%, the leakage of reduction
Amount and base drilling fluid emulsion-breaking voltage reach optimum value.
Claims (8)
1. drilling fluid sealing agent, which is characterized in that its composition includes：Sheet or the poly- butyl ester 4-200 mesh of the rigidity of particle, mica
Piece 4-200 mesh, calcium carbonate and polypropylene fibre；The mass percent wherein respectively formed is：Sheet or the poly- fourth of the rigidity of particle
Ester sheet or particle 4-200 mesh：30%~60%, mica sheet 4-200 mesh：30%~60%, calcium carbonate：4%~12%, poly- third
Alkene fiber：1%~3%.
2. drilling fluid sealing agent as described in claim 1, it is characterised in that：The mass percent respectively formed is：Rigidity is poly-
Butyl ester sheet or particle 4-200 mesh：40%~50%, mica sheet 4-200 mesh：40%~50%, calcium carbonate：6%~10%, gather
Tacryl：1%~3%.
3. drilling fluid sealing agent as claimed in claim 2, it is characterised in that：The mass percent respectively formed is：Rigidity is poly-
Butyl ester sheet or particle 4-200 mesh：42%~48%, mica sheet 4-200 mesh：42%~48%, calcium carbonate：7%~9%, gather
Tacryl：1%~3%.
4. drilling fluid sealing agent as claimed in claim 3, it is characterised in that：The mass percent respectively formed is：Rigidity is poly-
Butyl ester sheet or particle 4-200 mesh：45%, mica sheet 4-200 mesh：45%, calcium carbonate：8%, polypropylene fibre：2%.
5. the drilling fluid sealing agent as described in any one of Claims 1-4 claim, it is characterised in that：Drilling fluid
It is 0.0745mm~5.0mm with the particle size range of sealing agent.
6. drilling fluid sealing agent as claimed in claim 5, it is characterised in that：The particle size range of the drilling fluid sealing agent
For 0.0745mm~0.45mm.
7. drilling fluid sealing agent as claimed in claim 5, it is characterised in that：The particle size range of the drilling fluid sealing agent
For 0.45mm~0.90mm.
8. drilling fluid sealing agent as claimed in claim 5, it is characterised in that：The particle size range of the drilling fluid sealing agent
For 0.90mm~5.00mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091219.5A CN108314996B (en) | 2018-01-30 | 2018-01-30 | Plugging agent for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091219.5A CN108314996B (en) | 2018-01-30 | 2018-01-30 | Plugging agent for drilling fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108314996A true CN108314996A (en) | 2018-07-24 |
| CN108314996B CN108314996B (en) | 2020-11-13 |
Family
ID=62888333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810091219.5A Active CN108314996B (en) | 2018-01-30 | 2018-01-30 | Plugging agent for drilling fluid |
Country Status (1)
| Country | Link |
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| CN (1) | CN108314996B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109796934A (en) * | 2019-03-07 | 2019-05-24 | 宁波驰诺国际货运有限公司 | A kind of refrigerating system plugging agent and preparation method thereof |
| CN111303845A (en) * | 2020-03-30 | 2020-06-19 | 中国石油天然气集团有限公司 | Preparation method and application of while-drilling plugging agent for oil-based drilling fluid |
| CN111454701A (en) * | 2020-02-26 | 2020-07-28 | 四川泓华油气田工程科技有限公司 | Oil-based drilling fluid expansion plugging agent |
| CN112724946A (en) * | 2021-02-03 | 2021-04-30 | 库尔勒同益工贸有限责任公司 | Fiber polymer plugging agent for drilling fluid and preparation method thereof |
| CN112745815A (en) * | 2019-10-30 | 2021-05-04 | 中国石油天然气股份有限公司 | Leak-proof leak-stopping material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109796934A (en) * | 2019-03-07 | 2019-05-24 | 宁波驰诺国际货运有限公司 | A kind of refrigerating system plugging agent and preparation method thereof |
| CN112745815A (en) * | 2019-10-30 | 2021-05-04 | 中国石油天然气股份有限公司 | Leak-proof leak-stopping material and preparation method thereof |
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| CN111454701B (en) * | 2020-02-26 | 2022-06-24 | 四川泓华油气田工程科技有限公司 | Oil-based drilling fluid expansion plugging agent |
| CN111303845A (en) * | 2020-03-30 | 2020-06-19 | 中国石油天然气集团有限公司 | Preparation method and application of while-drilling plugging agent for oil-based drilling fluid |
| CN111303845B (en) * | 2020-03-30 | 2022-07-05 | 中国石油天然气集团有限公司 | Preparation method and application of while-drilling plugging agent for oil-based drilling fluid |
| CN112724946A (en) * | 2021-02-03 | 2021-04-30 | 库尔勒同益工贸有限责任公司 | Fiber polymer plugging agent for drilling fluid and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN108314996B (en) | 2020-11-13 |
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