CN108384519A - A kind of drilling fluid latex class lubricating collapse-resisting agent - Google Patents
A kind of drilling fluid latex class lubricating collapse-resisting agent Download PDFInfo
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- CN108384519A CN108384519A CN201810375597.6A CN201810375597A CN108384519A CN 108384519 A CN108384519 A CN 108384519A CN 201810375597 A CN201810375597 A CN 201810375597A CN 108384519 A CN108384519 A CN 108384519A
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- latex
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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
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/10—Nanoparticle-containing well treatment fluids
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/34—Lubricant additives
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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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of drilling fluid latex class lubricating collapse-resisting agents, include following components by mass fraction：40 60 parts of latexes, 25 parts of latex stabilizers, 13 parts of antifoaming agent and 10 15 parts of micro-nano inertization agent；The latex is a kind of or their mixture of styrene-butadiene latex, butadiene latex, butyl latex, polychloroprene latex, ethylene propylene rubber latex, isoprene rubber latex, NBR latex, acrylic latex；The micro-nano inertization agent is a kind of or their mixture in micro-nano calcium carbonate, nano silicon dioxide.Its appearance is brown color viscous liquid, it is a kind of high-efficient drilling fluid lubricating collapse-resisting agent, the filter loss of drilling fluid system can be greatly reduced, enhances the lubricating ability of drilling fluid, raising system inhibits the ability of shale expansion, effectively solves the problems, such as that the serious of mud shale stratum is collapsed.
Description
Technical field
The present invention relates to well liquid borehole wall stabilizers, are a kind of drilling fluid latex class lubricating collapse-resisting agents.
Background technology
Borehole well instability problem in Process of Oil Well Drilling is always to perplex the problem of drilling well circle, for falling in drilling process
Block, the problems such as collapse, and has developed the anti-sloughing agents such as sulfonated gilsonite class inorganic agent, film forming class inorganic agent, emulsified asphalt class inorganic agent,
But on some of complex well, borehole well instability problem does not still well solve.
Invention content
The technical problem to be solved by the invention is to provide one kind can aid in solve drilling process in borehole well instability ask
The drilling fluid of topic latex class lubricating collapse-resisting agent.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of drilling fluid is anti-with latex class lubrication
It collapses agent, includes following components by mass fraction：40-60 parts of latexes, 2-5 parts of latex stabilizers, 1-3 parts of antifoaming agent and 10-15 parts
Micro-nano inertization agent；The latex is styrene-butadiene latex, butadiene latex, butyl latex, polychloroprene latex, ethylene propylene rubber latex, different
A kind of or their mixture of penta latex, NBR latex, acrylic latex；The micro-nano inertization agent is micro-nano
A kind of or their mixture in calcium carbonate, nano silicon dioxide.
The latex stabilizer is a kind of or their mixture in sulfuric acid, sulfonate, carboxylate；
The antifoaming agent is silicone emulsion, the fatty acid ester compounded object of higher alcohols, polyoxyethylene polyoxypropylene pentaerythrite ether
A kind of or their mixture in mixture.
The beneficial effects of the invention are as follows：Drilling fluid provided by the invention is brown color viscosity liquid with latex class lubricating collapse-resisting agent
Body has good filtrate reducing ability, lubricating ability and the ability for inhibiting shale expansion, is that a kind of high-efficient drilling fluid borehole wall is steady
Determine agent, the inhibition of system can be greatly improved, effectively solves the problems, such as that the serious of mud shale stratum is collapsed.
Specific implementation mode
Invention is further described in detail With reference to embodiment：
The drilling fluid latex class lubricating collapse-resisting agent of the present invention, includes following components by mass fraction：40-60 parts of latexes,
2-5 parts of latex stabilizers, 1-3 parts of antifoaming agent and 10-15 parts of micro-nano inertization agent；The latex is styrene-butadiene latex, fourth two
Alkene latex, butyl latex, polychloroprene latex, ethylene propylene rubber latex, isoprene rubber latex, NBR latex, acrylic latex one kind or they
Mixture；The micro-nano inertization agent is micro-nano calcium carbonate, a kind of in nano silicon dioxide or theirs is mixed
Close object.
The latex stabilizer is a kind of or their mixture in sulfuric acid, sulfonate, carboxylate；
The antifoaming agent is silicone emulsion, the fatty acid ester compounded object of higher alcohols, polyoxyethylene polyoxypropylene pentaerythrite ether
A kind of or their mixture in mixture.
40-60 parts of latexes are placed in reaction kettle under room temperature (25 DEG C), are then added under stirring successively in order
2-5 parts of latex stabilizers, 1-3 parts of antifoaming agent and 10-15 parts of micro-nano inertization agent, are thoroughly mixed uniformly to get one
Kind drilling fluid latex class lubricating collapse-resisting agent, appearance are the suspension latex of brown color.
Compared with existing similar borehole wall stabilizer, the present invention has the following advantages：
1, latex class lubricating collapse-resisting agent provided by the invention is a kind of Multifunctional Additive, have fluid loss additive, lubrication and
Anti-collapse effect.
2, the preparation method of latex class lubricating collapse-resisting agent provided by the invention, raw material is easy to get and cost is relatively low, more added with
Conducive to the popularization and application at scene.
Embodiment 1 (formulation examples 1)
50 parts of butadiene-styrene latexes are placed in reaction kettle at room temperature, 2 parts of breasts are then added under stirring successively in order
Gum stabilizing agents sodium sulfovinate, 2 parts of antifoaming agent silicone emulsions and 5 parts of micro-nano micro-nano calcium carbonate of inertization agent, are sufficiently stirred
It is uniformly mixed to get a kind of drilling fluid latex class lubricating collapse-resisting agent, appearance is the suspension latex of brown color.
Embodiment 2 (formulation examples 2)
50 parts of butadiene latexes are placed in reaction kettle at room temperature, are then added 2 parts under stirring successively in order
Latex stabilizer sodium sulfovinate, 5 parts of antifoaming agent silicone emulsions and 10 parts of micro-nano inertization agent nano silicon dioxides, are fully stirred
It mixes and is uniformly mixed to get a kind of drilling fluid latex class lubricating collapse-resisting agent, appearance is the suspension latex of brown color.
Embodiment 3 (formulation examples 3)
50 parts of butadiene-styrene latexes are placed in reaction kettle at room temperature, 2 parts of breasts are then added under stirring successively in order
Gum stabilizing agents sodium sulfovinate, 2 parts of antifoaming agent silicone emulsions and 5 parts of micro-nano inertization agent nano silicon dioxides, are sufficiently stirred
It is uniformly mixed to get a kind of drilling fluid latex class lubricating collapse-resisting agent, appearance is the suspension latex of brown color.
Embodiment 4 (filtrate reducing evaluation)
Latex class lubricating collapse-resisting agent used in the example is product made from embodiment 1, is surveyed using API filtration test method
Try the ability of the product filtrate reducing.Test method is：The bentonite base that the mass fraction for preparing 1000ml is 5% is starched, and 400ml is taken
Base slurry is for use, and 400ml bases is separately taken to starch, and the product of mass fraction 2% is added under stirring, in six press filtration commit a breach of etiquette upper test
The middle filter pressing loss of the slurry of product is starched and be added to base, reads 30min leak-off numerical quantities.Table 1 is the measurement result of filter loss, is added
Filter loss is substantially reduced after entering product.
Table 1
Embodiment 5 (inhibits shale expansion performance)
Latex class lubricating collapse-resisting agent used in the example is product made from example 1.Using NP-1 shale expansion instrument, weigh
10g dries bentonite, and 5min is compacted under 4MPa, measures the filtrate 10ml of two kinds of slurries in example 2 respectively, tests 8h linear expansions
Amount.Test result is shown in Table 2, and shale expansion amount is smaller, shows to inhibit the ability of shale expansion stronger.
Table 2
Embodiment 6 (improves drilling fluid lubricating performance)
Latex class lubricating collapse-resisting agent used in the example is product made from example 1.Using Fann extreme boundary lubrication instrument, respectively
It tests bentonite base slurry and the extreme boundary lubrication coefficient of the bentonite slurry of 2% product is added.Test result is shown in Table 3, extreme boundary lubrication system
Number is lower, shows that the lubricating ability of system is stronger.
Table 3
In conclusion present disclosure is not limited in the above embodiments, the knowledgeable people in same area can
Can propose other embodiments easily within the technological guidance's thought of the present invention, but this embodiment is included in this hair
Within the scope of bright.
Claims (3)
1. a kind of drilling fluid latex class lubricating collapse-resisting agent, which is characterized in that by mass fraction include following components：40-60 parts
Latex, 2-5 parts of latex stabilizers, 1-3 parts of antifoaming agent and 10-15 parts of micro-nano inertization agent；The latex be styrene-butadiene latex,
Butadiene latex, butyl latex, polychloroprene latex, ethylene propylene rubber latex, isoprene rubber latex, NBR latex, acrylic latex one kind or
Their mixture；The micro-nano inertization agent be micro-nano calcium carbonate, one kind in nano silicon dioxide or they
Mixture.
2. drilling fluid latex class lubricating collapse-resisting agent according to claim 1, which is characterized in that the latex stabilizer is sulphur
A kind of or their mixture in acid esters salt, sulfonate, carboxylate.
3. drilling fluid latex class lubricating collapse-resisting agent according to claim 1, which is characterized in that the antifoaming agent is emulsification silicon
A kind of in oil, the fatty acid ester compounded object of higher alcohols, polyoxyethylene polyoxypropylene pentaerythrite ether mixture or theirs is mixed
Close object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375597.6A CN108384519A (en) | 2018-04-24 | 2018-04-24 | A kind of drilling fluid latex class lubricating collapse-resisting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375597.6A CN108384519A (en) | 2018-04-24 | 2018-04-24 | A kind of drilling fluid latex class lubricating collapse-resisting agent |
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| CN108384519A true CN108384519A (en) | 2018-08-10 |
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| CN201810375597.6A Pending CN108384519A (en) | 2018-04-24 | 2018-04-24 | A kind of drilling fluid latex class lubricating collapse-resisting agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358856A (en) * | 2020-11-05 | 2021-02-12 | 中国石油集团渤海钻探工程有限公司 | Lubricating anti-sloughing agent for drilling fluid and preparation method thereof |
| CN113195677A (en) * | 2018-12-12 | 2021-07-30 | 切弗朗菲利浦化学公司 | Wellbore drilling composition |
| CN115093837A (en) * | 2022-07-13 | 2022-09-23 | 中海石油(中国)有限公司湛江分公司 | Wall-fixing agent and preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113195677A (en) * | 2018-12-12 | 2021-07-30 | 切弗朗菲利浦化学公司 | Wellbore drilling composition |
| CN112358856A (en) * | 2020-11-05 | 2021-02-12 | 中国石油集团渤海钻探工程有限公司 | Lubricating anti-sloughing agent for drilling fluid and preparation method thereof |
| CN115093837A (en) * | 2022-07-13 | 2022-09-23 | 中海石油(中国)有限公司湛江分公司 | Wall-fixing agent and preparation method and application thereof |
| CN115093837B (en) * | 2022-07-13 | 2023-11-10 | 中海石油(中国)有限公司湛江分公司 | Wall fixing agent and preparation method and application thereof |
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Application publication date: 20180810 |