CN108070366A - A kind of oil gas field formation skeleton sealing agent and preparation method thereof - Google Patents
A kind of oil gas field formation skeleton sealing agent and preparation method thereof Download PDFInfo
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- CN108070366A CN108070366A CN201610999193.5A CN201610999193A CN108070366A CN 108070366 A CN108070366 A CN 108070366A CN 201610999193 A CN201610999193 A CN 201610999193A CN 108070366 A CN108070366 A CN 108070366A
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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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/44—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
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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
- C09K8/42—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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Abstract
The invention discloses a kind of oil gas field formation skeleton sealing agent and preparation method thereof, the formation skeleton sealing agents, by weight, including following raw material：5 35 parts of calcium carbonate, 3 70 parts of bitumen, 1 35 parts of polyacrylamide, 3 90 parts of macromolecular fibre, 0.5 15 parts of phenolic resin, 0.3 5 parts of Lauxite, to 0.1 12 parts of Methyl benzenesulfonyl hydrazine, 1 10 parts of polypropene staple, 1 30 parts of polyethylene glycol, 1 18 parts of bentonite, 1 30 parts of carboxylic styrene butadiene latex, 30 180 parts of water.It is mixed evenly after each raw material is weighed according to parts by weight, heating is reacted to obtain the final product.The present invention makes it in mud shale stratum drilling process, and fine and close closure can be carried out to the hole of the mud shale borehole wall, infiltration of the water to stratum is effectively prevented, and then prevents the generation of the accidents such as cave-in.Sealing ratiod of the present invention is high, and plugging strength is big, and preparation method is simple and practicable, and raw material sources enrich, is at low cost, large-scale production easy to implement.
Description
Technical field
The present invention relates to oil gas field auxiliary agent technical fields, are specifically a kind of oil gas field formation skeleton sealing agent and its preparation
Method.
Background technology
It is 90 DEG C or more high as China's high temperature, exploitation with high salt, low-permeability oilfield and some oil wells subsequently enter high water-cut stage
Temperature, more than salinity 100000ppm, the water and oil control and improving ecology problem of the low-permeability oilfield rich in crack are increasingly urgent.
Inject low effective circulation of the water in the macropore of stratum, hence it is evident that shorten the cycle of operation of high temperature oil field.It is easy during existing exploitation of oil-gas field
Cause stratum stratification, microcrack development, inductivity leakage easily occurs.In drilling process, to prevent drilling fluid into stratum
Infiltration and other problems are, it is necessary to effectively block the pore throat on nearly borehole wall stratum.The sealing agent seal-off effect used at present
Can be poor, Formation bearing pressure is weak, and the problems such as inductivity is missed easily occurs, and sealing agent dosage is big, long construction period, closure peace
Overall coefficient is low, it is impossible to form size matching, it is impossible to form good internal filter cake, it is impossible to realize effectively closure.
The content of the invention
It is an object of the invention to provide the oil gas field stratum that a kind of sealing ratiod is high, plugging strength is big, applied widely
Skeleton sealing agent and preparation method thereof, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical solution：
A kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：5-35 parts of calcium carbonate, bitumen
3-70 parts, it is 1-35 parts of polyacrylamide, 3-90 parts of macromolecular fibre, 0.5-15 parts of phenolic resin, 0.3-5 parts of Lauxite, right
0.1-12 parts of Methyl benzenesulfonyl hydrazine, 1-10 parts of polypropene staple, 1-30 parts of polyethylene glycol, 1-18 parts of bentonite, Carboxy
1-30 parts of latex, 30-180 parts of water.
As further embodiment of the present invention：Oil gas field formation skeleton sealing agent, by weight, including following
Raw material：10-30 parts of calcium carbonate, 3-65 parts of bitumen, 1-30 parts of polyacrylamide, 4-85 parts of macromolecular fibre, phenolic resin
0.8-12 parts, 0.3-4 parts of Lauxite, to 0.2-10 parts of Methyl benzenesulfonyl hydrazine, 1-8 parts of polypropene staple, polyethylene glycol 1-
25 parts, 1-15 parts of bentonite, 1-25 parts of carboxylic styrene butadiene latex, 40-170 parts of water.
As further embodiment of the present invention：Oil gas field formation skeleton sealing agent, by weight, including following
Raw material：12-25 parts of calcium carbonate, 5-60 parts of bitumen, 1-25 parts of polyacrylamide, 5-80 parts of macromolecular fibre, phenolic resin
1-10 parts, 0.5-3 parts of Lauxite, to 0.5-8 parts of Methyl benzenesulfonyl hydrazine, 2-6 parts of polypropene staple, polyethylene glycol 1-22
Part, 1-12 parts of bentonite, 1-20 parts of carboxylic styrene butadiene latex, 45-150 parts of water.
A kind of oil gas field preparation method of formation skeleton sealing agent, comprises the following steps：
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to Methyl benzenesulfonyl hydrazine,
It after polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, is mixed evenly, so
1-12h is reacted at a temperature of 70-95 DEG C afterwards, then stir process 3-10h seals to get formation skeleton at a temperature of 50-75 DEG C
Blocking agent.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention makes it in mud shale stratum drilling process, fine and close closure can be carried out to the hole of the mud shale borehole wall, effectively
Infiltration of the water to stratum is prevented, and then prevents the generation of the accidents such as cave-in.Each raw material is used cooperatively in the present invention, not only
Micro-pore stratum can be blocked, and common large-cavity strata can be blocked, sealing ratiod is high, and closure is strong
Degree is big, thus the sealing agent can be applied to Various Complex stratum.Preparation method of the present invention is simple and practicable, scale easy to implement
Production, and raw material sources enrich, cost is relatively low.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiments obtained without making creative work, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate 5
Part, 3 parts of bitumen, 1 part of polyacrylamide, 3 parts of macromolecular fibre, 0.5 part of phenolic resin, 0.3 part of Lauxite, to methyl
0.1 part of benzene sulfonyl hydrazide, 1 part of polypropene staple, 1 part of polyethylene glycol, 1 part of bentonite, 1 part of carboxylic styrene butadiene latex, 30 parts of water.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 1h at a temperature of 70 DEG C, then at a temperature of 50 DEG C stir process 3h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 98.5%.
Embodiment 2
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
35 parts, 70 parts of bitumen, 35 parts of polyacrylamide, 90 parts of macromolecular fibre, 15 parts of phenolic resin, 5 parts of Lauxite, to first
12 parts of base benzene sulfonyl hydrazide, 10 parts of polypropene staple, 30 parts of polyethylene glycol, 18 parts of bentonite, 30 parts of carboxylic styrene butadiene latex, water
180 parts.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 12h at a temperature of 95 DEG C, then at a temperature of 75 DEG C stir process 10h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 98.8%.
Embodiment 3
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
10 parts, 3 parts of bitumen, 1 part of polyacrylamide, 4 parts of macromolecular fibre, 0.8 part of phenolic resin, 0.3 part of Lauxite, to first
0.2 part of base benzene sulfonyl hydrazide, 1 part of polypropene staple, 1 part of polyethylene glycol, 1 part of bentonite, 1 part of carboxylic styrene butadiene latex, 40 parts of water.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 2h at a temperature of 75 DEG C, then at a temperature of 55 DEG C stir process 4h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 99%.
Embodiment 4
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
30 parts, 65 parts of bitumen, 30 parts of polyacrylamide, 85 parts of macromolecular fibre, 12 parts of phenolic resin, 4 parts of Lauxite, to first
10 parts of base benzene sulfonyl hydrazide, 8 parts of polypropene staple, 25 parts of polyethylene glycol, 15 parts of bentonite, 25 parts of carboxylic styrene butadiene latex, water 170
Part.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 10h at a temperature of 90 DEG C, then at a temperature of 70 DEG C stir process 8h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 99.1%.
Embodiment 5
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
12 parts, 5 parts of bitumen, 1 part of polyacrylamide, 5 parts of macromolecular fibre, 1 part of phenolic resin, 0.5 part of Lauxite, to methyl
0.5 part of benzene sulfonyl hydrazide, 2 parts of polypropene staple, 1 part of polyethylene glycol, 1 part of bentonite, 1 part of carboxylic styrene butadiene latex, 45 parts of water.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 5h at a temperature of 85 DEG C, then at a temperature of 65 DEG C stir process 5h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 99.2%.
Embodiment 6
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
25 parts, 60 parts of bitumen, 25 parts of polyacrylamide, 80 parts of macromolecular fibre, 10 parts of phenolic resin, 3 parts of Lauxite, to first
8 parts of base benzene sulfonyl hydrazide, 6 parts of polypropene staple, 22 parts of polyethylene glycol, 12 parts of bentonite, 20 parts of carboxylic styrene butadiene latex, water 150
Part.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 7h at a temperature of 80 DEG C, then at a temperature of 60 DEG C stir process 6h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 99.3%.
Embodiment 7
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
15 parts, 10 parts of bitumen, 5 parts of polyacrylamide, 10 parts of macromolecular fibre, 3 parts of phenolic resin, 1 part of Lauxite, to methyl
2 parts of benzene sulfonyl hydrazide, 3 parts of polypropene staple, 5 parts of polyethylene glycol, 5 parts of bentonite, 5 parts of carboxylic styrene butadiene latex, 60 parts of water.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 5h at a temperature of 85 DEG C, then at a temperature of 65 DEG C stir process 5h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 99.3%.
Embodiment 8
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
20 parts, 50 parts of bitumen, 20 parts of polyacrylamide, 70 parts of macromolecular fibre, 8 parts of phenolic resin, 2 parts of Lauxite, to first
6 parts of base benzene sulfonyl hydrazide, 5 parts of polypropene staple, 15 parts of polyethylene glycol, 10 parts of bentonite, 15 parts of carboxylic styrene butadiene latex, water 130
Part.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 7h at a temperature of 80 DEG C, then at a temperature of 60 DEG C stir process 6h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 99.4%.
Embodiment 9
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
16 parts, 20 parts of bitumen, 10 parts of polyacrylamide, 20 parts of macromolecular fibre, 4 parts of phenolic resin, 1 part of Lauxite, to first
3 parts of base benzene sulfonyl hydrazide, 4 parts of polypropene staple, 8 parts of polyethylene glycol, 6 parts of bentonite, 8 parts of carboxylic styrene butadiene latex, 70 parts of water.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 5h at a temperature of 85 DEG C, then at a temperature of 65 DEG C stir process 5h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 99.4%.
Embodiment 10
In the embodiment of the present invention, a kind of oil gas field formation skeleton sealing agent, by weight, including following raw material：Calcium carbonate
18 parts, 40 parts of bitumen, 15 parts of polyacrylamide, 60 parts of macromolecular fibre, 6 parts of phenolic resin, 2 parts of Lauxite, to first
5 parts of base benzene sulfonyl hydrazide, 5 parts of polypropene staple, 12 parts of polyethylene glycol, 8 parts of bentonite, 12 parts of carboxylic styrene butadiene latex, water 120
Part.
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to methylbenzene sulphur
After hydrazides, polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, it is mixed equal
It is even, then react 7h at a temperature of 80 DEG C, then at a temperature of 60 DEG C stir process 6h to get formation skeleton sealing agent.
The sealing agent is tested, result of the test embodiment of the present invention sealing ratiod 99.5%.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (4)
1. a kind of oil gas field formation skeleton sealing agent, which is characterized in that by weight, including following raw material：Calcium carbonate 5-
35 parts, 3-70 parts of bitumen, 1-35 parts of polyacrylamide, 3-90 parts of macromolecular fibre, 0.5-15 parts of phenolic resin, ureaformaldehyde tree
0.3-5 parts of fat, to 0.1-12 parts of Methyl benzenesulfonyl hydrazine, 1-10 parts of polypropene staple, 1-30 parts of polyethylene glycol, bentonite 1-18
Part, 1-30 parts of carboxylic styrene butadiene latex, 30-180 parts of water.
2. oil gas field according to claim 1 formation skeleton sealing agent, which is characterized in that by weight, including with
Lower raw material：10-30 parts of calcium carbonate, 3-65 parts of bitumen, 1-30 parts of polyacrylamide, 4-85 parts of macromolecular fibre, phenolic aldehyde tree
0.8-12 parts of fat, 0.3-4 parts of Lauxite, to 0.2-10 parts of Methyl benzenesulfonyl hydrazine, 1-8 parts of polypropene staple, polyethylene glycol
1-25 parts, 1-15 parts of bentonite, 1-25 parts of carboxylic styrene butadiene latex, 40-170 parts of water.
3. oil gas field according to claim 2 formation skeleton sealing agent, which is characterized in that by weight, including with
Lower raw material：12-25 parts of calcium carbonate, 5-60 parts of bitumen, 1-25 parts of polyacrylamide, 5-80 parts of macromolecular fibre, phenolic aldehyde tree
1-10 parts of fat, 0.5-3 parts of Lauxite, to 0.5-8 parts of Methyl benzenesulfonyl hydrazine, 2-6 parts of polypropene staple, polyethylene glycol 1-22
Part, 1-12 parts of bentonite, 1-20 parts of carboxylic styrene butadiene latex, 45-150 parts of water.
4. a kind of preparation method of oil gas field formation skeleton sealing agent as described in claim 1-3 is any, which is characterized in that
Comprise the following steps：
By calcium carbonate, bitumen, polyacrylamide, macromolecular fibre, phenolic resin, Lauxite, to Methyl benzenesulfonyl hydrazine,
It after polypropene staple, polyethylene glycol, bentonite, carboxylic styrene butadiene latex, water are weighed according to parts by weight, is mixed evenly, so
1-12h is reacted at a temperature of 70-95 DEG C afterwards, then stir process 3-10h seals to get formation skeleton at a temperature of 50-75 DEG C
Blocking agent.
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| CN201610999193.5A CN108070366A (en) | 2016-11-14 | 2016-11-14 | A kind of oil gas field formation skeleton sealing agent and preparation method thereof |
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| CN201610999193.5A CN108070366A (en) | 2016-11-14 | 2016-11-14 | A kind of oil gas field formation skeleton sealing agent and preparation method thereof |
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| CN109054780A (en) * | 2018-08-10 | 2018-12-21 | 西南石油大学 | A kind of crack inhibitor and preparation method thereof improving formation fracture pressure and water-base drilling fluid and application |
| CN109810682A (en) * | 2019-03-12 | 2019-05-28 | 中国石油大学(华东) | A kind of heat molten type sealing agent, with drilling fluid and its preparation method and application |
| CN111849438A (en) * | 2019-04-26 | 2020-10-30 | 中国石油化工股份有限公司 | Plugging agent for plugging water-containing stratum and preparation method and application thereof |
| CN115746808A (en) * | 2021-09-06 | 2023-03-07 | 中国石油天然气股份有限公司 | Plugging agent and application thereof |
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| CN115746808A (en) * | 2021-09-06 | 2023-03-07 | 中国石油天然气股份有限公司 | Plugging agent and application thereof |
| CN115746808B (en) * | 2021-09-06 | 2024-04-30 | 中国石油天然气股份有限公司 | Plugging agent and application thereof |
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Application publication date: 20180525 |