CN107011880B - A kind of high temperature resistance pressure-bearing retaining wall agent and preparation method thereof of drilling fluid, application - Google Patents
A kind of high temperature resistance pressure-bearing retaining wall agent and preparation method thereof of drilling fluid, application Download PDFInfo
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- CN107011880B CN107011880B CN201710365455.7A CN201710365455A CN107011880B CN 107011880 B CN107011880 B CN 107011880B CN 201710365455 A CN201710365455 A CN 201710365455A CN 107011880 B CN107011880 B CN 107011880B
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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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- 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
- C09K8/032—Inorganic additives
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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
- C09K8/035—Organic additives
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Abstract
The invention provides a kind of high temperature resistance pressure-bearing retaining wall agent of drilling fluid, mainly it is made by following raw material：In terms of mass fraction, 70 80 parts of natural plant, 20 30 parts of fiber substance, 24 parts of apple skin, 46 parts of Exocarpium Juglandis Immaturus, 13 parts of tealeaves, 5 10 parts of stalk, 15 parts of soybean, 8 15 parts of bentonite, 10 15 parts of fertile soil, 15 parts of carbonate.Preparation method includes：Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin are crushed respectively；Fertile soil, bentonite are sieved, the soil paste liquid that concentration is 5 10wt% is hybridly prepared into water；After natural plant, fiber substance and carbonate are mixed, Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin are added, addition soil paste liquid is uniformly mixed, you can.The resistance to temp effect of retaining wall agent pressure-bearing of the embodiment of the present invention is good, effectively reduces the leak-off of drilling fluid, can be widely applied to oil drilling field, have broad application prospects.
Description
Technical field
The present invention relates to oil drilling preparation field, in particular to a kind of high temperature resistance pressure-bearing retaining wall agent of drilling fluid
And preparation method thereof, application.
Background technology
As petroleum exploration and development is to deep and marine development, deep-well, ultradeep well and special well probing are increasingly
It is more, the particularly probing of superhigh temperature, super-pressure stratum, requirements at the higher level are also proposed accordingly to drilling fluid.And drilling fluid system
Progress dependent on New drilling fluid inorganic agent appearance, only continually develop and improve new inorganic agent, just can ensure that brill
Well liquid technology is constantly progressive.
Retaining wall agent main purpose used in general drilling fluid is the improvement of mud cake in order to reduce the filter loss of drilling fluid,
Quick blocking formation fracture such as prevents from caving in the effect, but deepening continuously now with oil development, and its temperature is also increasingly
Height, pressure also compare larger, and common retaining wall agent of the prior art can only substantially meet the effect of retaining wall, but anti-height itself
Temperature, bearing capacity are poor so that for the drillng operation of some high intensity operating modes, common retaining wall agent does not apply to simultaneously, so as to limit
The further development and application of retaining wall agent.
In addition, in terms of the composition of present retaining wall agent is largely focused on synthetic material, polymer, although the technology of research
It is relatively ripe, but synthesis technique of these materials itself is more complicated, cost is higher, and combination property is poor, therefore grinds
The retaining wall agent for sending new species is technical problem urgently to be resolved hurrily in the prior art.
In view of this, it is special to propose the present invention.
The content of the invention
The first object of the present invention is to provide a kind of drilling fluid high temperature resistance pressure-bearing retaining wall agent, and the retaining wall agent passes through raw material
Between mutually it is compatible, the retaining wall agent heat resistance and thermal stability being prepared are good, and herein basis on filtrate reducing energy
Power more preferably, effectively reduces the leak-off of drilling fluid, can be widely applied to oil field with caving-preventing ability retaining wall agent more of the prior art
Drilling applications, have broad application prospects.Many natural materials are employed in the retaining wall agent of the present invention in addition, make use of these
Natural materials have viscosity reduction, drop the peculiar advantage of dehydration, after the material mixing such as natural gum, fiber, further increase retaining wall
The performance of agent in itself, and the added value of these natural materials has been correspondingly improved, realize resource reutilization.
The second object of the present invention is the preparation method for providing above-mentioned drilling fluid high temperature resistance pressure-bearing retaining wall agent, preparation side
Method is relatively easy, easy to operate, and operating condition is also relatively gentleer, and front and rear step linking is close, and three wastes produce, safety and environmental protection,
Belong to preferably a kind of preparation method.
The third object of the present invention is the application for providing above-mentioned drilling fluid high temperature resistance pressure-bearing retaining wall agent, can extensive use
In oil drilling field, it is added in drilling well base fluid and uses, it is easy to use, suitable for wide popularization and application.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
The invention provides a kind of high temperature resistance pressure-bearing retaining wall agent of drilling fluid, mainly it is made by following raw material：With mass parts
Number meter, natural plant 70-80 parts, fiber substance 20-30 parts, apple skin 2-4 parts, Exocarpium Juglandis Immaturus 4-6 parts, tealeaves 1-3 parts,
Stalk 5-10 parts, soybean 1-5 parts, bentonite 8-15 parts, fertile soil 10-15 parts, carbonate 1-5 parts.
In the prior art, the retaining wall agent main purpose used in general drilling fluid is to reduce the filter loss of drilling fluid, change
Kind mud cake quality, quick blocking formation fracture such as prevent from caving in the effect, but deepening continuously now with oil development, its temperature
Degree also more and more higher, pressure also compare larger, and common retaining wall agent of the prior art can only substantially meet the effect of retaining wall, but
It is that high temperature resistance itself, bearing capacity are poor so that for the drillng operation of some high intensity operating modes, common retaining wall agent is simultaneously uncomfortable
With so as to limit the further development and application of retaining wall agent.
In addition, in terms of the composition of present retaining wall agent is largely focused on synthetic material, polymer, although the technology of research
It is relatively ripe, but synthesis technique of these materials itself is more complicated, cost is higher, and combination property is poor, therefore grinds
The retaining wall agent for sending new species is technical problem urgently to be resolved hurrily in the prior art.
The present invention is in order to solve the above technical problems, provide a kind of good retaining wall agent of high temperature resistance load performance, the retaining wall
Except comprising materials such as synthetic material common in the art, polymer, further comprises many natural materials in the raw material of agent,
After make use of the advantage of some aspects of these natural materials to carry out compatibility with other components, the retaining wall agent being prepared is comprehensive
Can be more excellent, the retaining wall agent prepared in the prior art on the specific components raw material of the present invention is no any record, the present invention
Scheme for expand retaining wall agent marketing there is important meaning.
In the present invention, natural plant belongs to a kind of raw material more commonly used in additive for drilling fluid, and it is typically derived from
Leaf, rhizome or bark of plant etc., because natural gum has more excellent rejection ability, filtrate reducing ability, therefore it can make
For the major ingredient of retaining wall agent, glycan is also contained in same fiber substance the inside, therefore also comes frequently as the raw material of drilling fluid retaining wall agent
With improving the anti-collapse inhibition in drilling process by both cooperations.The addition of carbonate also serves benefit accordingly
The strong effect for improving stability, general carbonate can select to be to include the one or more in calcium carbonate, sodium carbonate, more excellent
For precipitated calcium carbonate.
Preferably, natural plant includes one or more of combinations in sesbania gum, guar gum, flax gum, fenugreek gum,
As long as belong to the material of natural plant within protection scope of the present invention.
Preferably, fiber substance includes the one or more in synthetic fibers, natural fiber and cellulose, more excellent
For nano-cellulose, optimal for carboxymethyl nano-cellulose, need exist for explanation is the fiber substance that the present invention uses
Preferably nano-cellulose, it is because the nano micro crystal cellulose prepared by native cellulose why using nano-cellulose
Not only have cellulose basic structure and performance, also with huge specific surface area, high-crystallinity (>70%), high-hydrophilic,
High Young's modulus, high intensity (7500MPa), hyperfine structure and high transparency, good biodegradability and bio-compatible
Property and stable chemical property, in addition cellulose surface expose great amount of hydroxy group, reproducibility and non-reducing end group so that
Nano micro crystal cellulose has huge chemical modification potentiality, therefore the invention is preferably nano-cellulose, can be with
So that the effect of the anti-leak-off of retaining wall of pressure-bearing retaining wall agent in itself is more preferable, it is optimal to pass through for carboxymethyl nano-cellulose, inventor
Grope to find to use such fibrous matter optimal.
But because natural plant, heat-resisting property of both materials of fiber substance itself are poor, for boring now
In the case that well industrial and mineral is more complicated, synthetic material is relied solely on, the material of natural gum class is prepared in the obvious performance of retaining wall agent
Also far from meeting actual demand.
Therefore, the present invention also added bentonite and humic in the feed in order to lift the temperature resistance load performance of retaining wall agent
Soil, these materials have relatively good heat-resisting property and because proportion are bigger in itself, and phase has virtually been aggravated after addition
Than, reduce the ratio of the solid phase in drilling fluid and then reduce the risk of obstruction reservoir gaps, be more favorable to the protection of reservoir, can
Meaning is killed two birds with one stone.
In addition, the apple skin that with the addition of of the invention for going back creativeness in the feed, Exocarpium Juglandis Immaturus, tealeaves, stalk, greatly
Beans, also plant phenols and poly- saccharide material are typically all selected in the raw material that oil drilling field is used as additive for drilling fluid
Material, and just all containing compositions such as abundant tannin, polyphenol and glycan in these materials for selecting of the present invention, and with day
The right material such as natural plant gum and fiber can form good compatibility relationship to improve the performance of retaining wall agent, than being conveniently used for making
Make retaining wall agent because not all material containing abundant polysaccharide can suitably do retaining wall agent, therefore by this
A little materials are added as raw material to prepare retaining wall agent, can produce extraordinary economic benefit and environmental benefit.
Further, such as Exocarpium Juglandis Immaturus, stalk, apple skin these materials, itself belongs to discarded object, if be not used
It may directly fall as domestic rubbish disposal, after inventor is translated into useful thing and is used, realize certain
Economic value, eliminating garbage disposal needs to find the problem of place is stacked, more green without progress further work-up
Environmental protection, moreover it is possible to further improve the performance of retaining wall agent, expand the further application of retaining wall agent, therefore visible inventor is former in progress
It is also to have paid substantial amounts of creative work during material selection, carried out science selects compatibility.
In order to further improve the effect of synergy after compatibility between retaining wall agent raw material itself, in each raw material dosage preferably
For, in terms of mass fraction, natural plant 72-78 parts, fiber substance 22-28 parts, apple skin 2-3 parts, Exocarpium Juglandis Immaturus 4-5
Part, tealeaves 1-2 parts, stalk 7-9 parts, soybean 2-4 parts, bentonite 10-12 parts, fertile soil 12-14 parts, carbonate 2-4 parts.
More preferably, 75 parts of natural plant, 25 parts of fiber substance, 2 parts of apple skin, 5 parts of Exocarpium Juglandis Immaturus, 2 parts of tealeaves, straw
8 parts of stalk, 3 parts of soybean, 11 parts of bentonite, 13 parts of fertile soil, 3 parts of carbonate.
In addition, natural plant can be 71 parts, 73 parts, 74 parts, 75 parts, 76 parts, 77 parts and 79 parts etc., fiber-like
Material can be 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 29 parts etc., and these dosages can be with other raw materials
Free matched combined is carried out to prepare retaining wall agent.
Natural gum, synthetic material and natural materials have been carried out organic combination by the present invention when preparing retaining wall agent, swollen
Profit soil, fertile soil performance comparision in terms of temperature resistance are excellent, and these materials such as Exocarpium Juglandis Immaturus, stalk, apple skin are further improving
Play the role of positive in the anti-filtration property of retaining wall of retaining wall agent, the addition of every kind of raw material make use of its own advantage, so mutual
With corresponding lifting has also been obtained in combination property afterwards, because bentonite, fertile soil in addition to high temperature resistant property is excellent, lead to
Cross with after other material interworkings itself anti-filtration effect can also be improved, and reservoir can also be protected, the performance of these effects
It is to need mutual the 5 of dependence and other materials to match somebody with somebody caused by after relation, it is impossible to rely solely on wherein some raw material can and reach
To more excellent performance, each raw material being related in a word in the present invention program can not lack, because inventor passes through
Substantial amounts of creative experiment finds only that this several raw material mutual 5 are optimal with can be only achieved in rear obtained retaining wall agent performance.
In addition, in terms of raw material dosage, natural plant is bigger as the possible dosage of major ingredient with fiber substance, other
Material can play the effect of Synergistic, so dosage is unsuitable excessive, and if dosage is also not easy to be well mixed very much greatly,
Be unfavorable for subsequent applications, by groping to be optimal repeatedly in performance, add it is also unhelpful or may play it is suitable its
Anti- effect.These materials belong to usual products on the market in itself in fact, but are to protect for the solution of the present invention key
Shield raw material between it is this assemble relation mutually, can not cannot be used as the mutual combo of raw material because of these materials are relatively common
Into the solution of the present invention, moreover also no any record is can be applied to oil drilling before Cucumber in these raw materials
Field, only it can just obtain such inspiration in the case of with reference to the present invention.
The present invention additionally provides the retaining wall agent except providing a kind of formula of drilling fluid high temperature resistance pressure-bearing retaining wall agent
Preparation method, specifically comprise the following steps：
(A) it is standby after Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin being respectively crushed into 1-2cm particle；
(B) fertile soil, bentonite are sieved, the soil paste liquid that concentration is 5-10wt% is hybridly prepared into water, it is standby；
(C) after being well mixed natural plant, fiber substance and carbonate, Exocarpium Juglandis Immaturus, stalk, tea are added
Leaf, soybean, apple skin, finally add 20-30 DEG C of soil paste liquid and be uniformly mixed, you can.
The preparation method of the embodiment of the present invention is relatively easy, easy to operate, and operating condition is also relatively gentleer, front and rear step rank
Close, three wastes generation is connect, safety and environmental protection, belongs to preferably a kind of preparation method, but representative is prepared without other
Method, as long as the method for retaining wall agent can be prepared within protection scope of the present invention with the composition of raw materials of the present invention.
Preferably, in step (A), first Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin these materials are respectively crushed into
After 1-2cm particle, mix and simultaneously soaked using ethanol, then mashing is handled, and the reason for being soaked using ethanol is also for can be by
Active ingredient in these materials, which soaks out, to be come, appropriate amount of ethanol, in order to control purity to be preferably selected more than technical grade purity
Ethanol.
Preferably, it is more preferably 3-4h using the time control of ethanol immersion in more than 2h.
Preferably, the speed control of mashing is between 100-500rpm, the time control being more preferably beaten in 30-40min,
By controlling rational beating time to form more homogeneous material between each raw material.
Preferably, in step (B), more than 60 mesh, more excellent control exists for fertile soil, the mesh Task-size Controlling of bentonite screening
Between 80-100 mesh, fertile soil, bentonite preferably carry out certain pretreatment to go the removal of impurity, actual behaviour before the use in addition
As when be after using alkali liquid washing 70-80min, then to stand more than 24h, dry and carry out preparing soil paste liquid.
Preferably, in step (C), natural plant, fiber substance and carbonate are mixed into 10-20min, then
Other materials are added, by controlling charging sequence, can promote preferably to merge into each other between raw material, according to the spy of every kind of raw material
Property with the material for being easier to mix put together carry out mix and match, more conducively merge.And natural plant gum is inherently sticky
Material if to also have other natural materials with the soil paste liquid of bottom be difficult to be well mixed for addition afterwards, the mixing temperature of its needs is just
It is relatively high, achieved the goal according to the basic normal-temperature operation can of this charging sequence of the present invention.
Preferably, the speed control that natural plant, fiber substance and carbonate mix is in 200-400rpm；
Preferably, Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin are added, soil paste liquid is finally added and is uniformly mixed
Speed control between 300-700rpm, mixing time control is in 20-40min, by controlling suitable stir speed (S.S.), stirring
Time is more conducive to mix homogeneous, makes the product with excellent effect.
The embodiment of the present invention additionally provides the application process of retaining wall agent, and retaining wall agent is added in drilling well base fluid, retaining wall agent
For the 2-8wt% of drilling well base fluid quality, it is therefore preferable to 3-7wt%, more excellent for 4-6wt%, best strict control dosage, because
It may also need to add other auxiliary agents except retaining wall agent in drilling fluid to improve the performance of drilling fluid in itself such as lubricant etc., institute
There is more excellent dosage scope with each additive, if strictly control may not also affect the effect of other auxiliary agents
Fruit plays, so being preferably controlled within the scope of application claims.
Compared with prior art, beneficial effects of the present invention are：
(1) the retaining wall agent heat resistance of the embodiment of the present invention and thermal stability are good, and filtrate reducing on basis herein
Ability more preferably, effectively reduces the leak-off of drilling fluid, can be widely applied to oil with caving-preventing ability retaining wall agent more of the prior art
Field drilling applications, can be by Filtrate Loss Control in below 15wt%, temperature resistance energy by testing the retaining wall agent for finding to use the present invention
Power can be up to more than 160 DEG C；
(2) the retaining wall agent of the embodiment of the present invention employs many natural materials, make use of these natural materials have viscosity reduction,
The peculiar advantage of dehydration is dropped, after the material mixing such as natural gum, fiber, further increases the performance of retaining wall agent in itself, and
The added value of these natural materials has been correspondingly improved, has realized resource reutilization；
(3) the drilling fluid of the present invention preparation method of high temperature resistance pressure-bearing retaining wall agent, preparation method is relatively easy, operation side
Just, operating condition is also relatively gentleer, and front and rear step linking is close, and three wastes produce, safety and environmental protection.
Embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.It is unreceipted specific in embodiment
Condition person, the condition suggested according to normal condition or manufacturer are carried out.Agents useful for same or the unreceipted production firm person of instrument, it is
The conventional products that can be obtained by commercially available purchase.
Embodiment 1
The raw material of retaining wall agent is matched according to following quality：
Guar gum 70kg, polyester fiber 20kg, apple skin 2kg, Exocarpium Juglandis Immaturus 6kg, tealeaves 1kg, stalk 5kg, soybean
5kg, bentonite 15kg, fertile soil 10kg, calcium carbonate 5kg；
Preparation method is as follows：
1) first Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin are respectively adopted pulverizer and crushed, be ground into 1-
2cm particle；
2) by fertile soil, bentonite cross 60 mesh sieve sieved after, in dissolving tank with water be beaten dissolve, be configured to
Soil paste liquid, concentration are controlled in 5wt%；
3) guar gum, polyester fiber and calcium carbonate are added in agitator tank, stirred while adding Exocarpium Juglandis Immaturus, straw
Stalk, tealeaves, soybean, apple skin, continue to stir and add soil paste liquid, temperature adjusting is thoroughly mixed between 20-30 DEG C
After even, retaining wall agent is obtained, is packaged into the finished product of 10kg/ bags, is preserved at air drying.
Embodiment 2
The raw material of retaining wall agent is matched according to following quality：
Guar gum, flax gum 80kg, cellulose 30kg, apple skin 4kg, Exocarpium Juglandis Immaturus 4kg, tealeaves 3kg, stalk 10kg,
Soybean 1kg, bentonite 8kg, fertile soil 15kg, sodium carbonate 1kg；
Preparation method is as follows：
1) first Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin are respectively adopted pulverizer and crushed, be ground into 1-
2cm particle, soak 2h with ethanol after mixing in a reservoir, under 500rpm rotating speeds mashing handle；
2) by fertile soil, bentonite cross 60 mesh sieve sieved after, with alkali liquid washing 70min, done after standing 24h
It is dry, it is beaten and is dissolved with water in dissolving tank, be configured to soil paste liquid, concentration is controlled in 10wt%；
3) guar gum, flax gum, cellulose and sodium carbonate are added in agitator tank, while stirring one under 400rpm rotating speeds
Side adds Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin and continued after stirring 10min, finally adds soil paste liquid, adjustment of rotational speed arrives
300rpm continues to stir 40min, and temperature adjusting after being thoroughly mixed uniformly, obtains retaining wall agent, by it between 20-30 DEG C
The finished product of 10kg/ bags is packaged into, is preserved at air drying.
Embodiment 3
The raw material of retaining wall agent is matched according to following quality：
Fenugreek gum, flax gum 72kg, nano-cellulose 22kg, apple skin 2kg, Exocarpium Juglandis Immaturus 5kg, tealeaves 1kg, stalk
7kg, soybean 4kg, bentonite 10kg, fertile soil 12kg, sodium carbonate 2kg；
Preparation method is as follows：
1) first Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin are respectively adopted pulverizer and crushed, be ground into 1-
2cm particle, soak 3-4h with ethanol more than technical grade purity after mixing in a reservoir, under 100rpm rotating speeds mashing handle
30-40min；
2) by fertile soil, bentonite cross 80 mesh sieve sieved after, with alkali liquid washing 80min, done after standing 30h
It is dry, it is beaten and is dissolved with water in dissolving tank, be configured to soil paste liquid, concentration is controlled in 8wt%；
3) fenugreek gum, flax gum, nano-cellulose and sodium carbonate are added in agitator tank, while stirring under 200rpm rotating speeds
Mix and continue while adding Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin after stirring 20min, finally add soil paste liquid, rotating speed is adjusted
Whole to continue to stir 20min to 700rpm, temperature adjusting after being thoroughly mixed uniformly, obtains retaining wall agent between 20-30 DEG C,
The finished product of 10kg/ bags is packaged into, is preserved at air drying.
Embodiment 4
The raw material of retaining wall agent is matched according to following quality：
Guar gum 78kg, carboxymethyl nano-cellulose 28kg, apple skin 3kg, Exocarpium Juglandis Immaturus 4kg, tealeaves 2kg, stalk
9kg, soybean 2kg, bentonite 12kg, fertile soil 14kg, precipitated calcium carbonate 4kg；
Specific preparation method is consistent with embodiment 3.
Embodiment 5
The raw material of retaining wall agent is matched according to following quality：
Guar gum 75kg, carboxymethyl nano-cellulose 25kg, apple skin 2kg, Exocarpium Juglandis Immaturus 5kg, tealeaves 2kg, stalk
8kg, soybean 3kg, bentonite 11kg, fertile soil 13kg, precipitated calcium carbonate 3kg；
Specific preparation method is consistent with embodiment 3.
Comparative example 1
Specific formula is consistent with embodiment 5, does not add apple skin simply.
Comparative example 2
Specific formula is consistent with embodiment 5, does not add Exocarpium Juglandis Immaturus simply.
Comparative example 3
Specific formula is consistent with embodiment 5, does not add tealeaves, stalk simply.
Comparative example 4
Specific formula is consistent with embodiment 5, simply apple skin 10kg, Exocarpium Juglandis Immaturus 1kg, tealeaves 0.1kg, stalk 0.1kg,
Soybean 7kg.
Comparative example 5
Specific formula is consistent with embodiment 5, does not add fertile soil simply.
Comparative example 6
Specific formula is consistent with embodiment 5, does not add bentonite simply.
Comparative example 7
Specific formula is consistent with embodiment 5, simply bentonite 30kg, fertile soil 2kg.
Comparative example 8
The retaining wall agent that embodiment embodiment 1 is prepared during number of patent application is 201620851880.2.
Application examples 1
1-5 of the embodiment of the present invention and comparative example 1-8 retaining wall agent is added to base slurry (base according to 3wt% quality
Slurry is starched using general standard base) in, it is as follows to carry out closing filter loss measurement result：
Table 1 closes the measurement result of filter loss
| Group | Apparent viscosity (mPa.s) | Filter loss percentage (%) | Temperature resistance ability (DEG C) |
| Embodiment 1 | 13.2 | 14 | 165 |
| Embodiment 2 | 14.7 | 11 | 160 |
| Embodiment 3 | 14.5 | 12 | 170 |
| Embodiment 4 | 15.1 | 11 | 165 |
| Embodiment 5 | 15.5 | 9 | 175 |
| Comparative example 1 | 11.7 | 17 | 160 |
| Comparative example 2 | 12 | 18 | 161 |
| Comparative example 3 | 11.9 | 16 | 161 |
| Comparative example 4 | 12.5 | 20 | 163 |
| Comparative example 5 | 12.3 | 15 | 150 |
| Comparative example 6 | 12.3 | 16 | 150 |
| Comparative example 7 | 12.8 | 15 | 155 |
| Comparative example 8 | 11.2 | 35 | 130 |
As can be seen from the above Table 1, the retaining wall agent of the embodiment of the present invention its combination property of retaining wall agent more of the prior art
It is more excellent, but need and be specifically combined as most preferably on raw material, if some raw material dosages may be to property in the case of changing
It can influence.
By further experiment, retaining wall agent is added in base slurry according to 4wt%, 6wt%, 7wt% quality also phase
Same experimental result.
Although illustrate and describing the present invention with specific embodiment, but will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (20)
1. a kind of drilling fluid high temperature resistance pressure-bearing retaining wall agent, it is characterised in that be mainly made by following raw material：With mass fraction
Meter, natural plant 70-80 parts, fiber substance 20-30 parts, apple skin 2-4 parts, Exocarpium Juglandis Immaturus 4-6 parts, tealeaves 1-3 parts, straw
Stalk 5-10 parts, soybean 1-5 parts, bentonite 8-15 parts, fertile soil 10-15 parts, carbonate 1-5 parts；
The preparation method of the high temperature resistance pressure-bearing retaining wall agent includes：
(A) after Exocarpium Juglandis Immaturus, stalk, tealeaves, soybean, apple skin being respectively crushed into 1-2cm particle, mix and use ethanol
Immersion, then mashing is handled, standby；
(B) fertile soil, bentonite are sieved, after alkali liquid washing 70-80min, then stands more than 24h, prepared after drying
Soil paste liquid, the soil paste liquid that concentration is 5-10wt% is hybridly prepared into water, standby, fertile soil, the mesh granularity control of bentonite screening
System is more than 60 mesh；
(C) by natural plant, fiber substance and carbonate it is well mixed after, add Exocarpium Juglandis Immaturus, stalk, tealeaves, big
Beans, apple skin, finally add 20-30 DEG C of soil paste liquid and be uniformly mixed, you can.
2. high temperature resistance pressure-bearing retaining wall agent according to claim 1, it is characterised in that in terms of mass fraction, natural plant
72-78 parts, fiber substance 22-28 parts, apple skin 2-3 parts, Exocarpium Juglandis Immaturus 4-5 parts, tealeaves 1-2 parts, stalk 7-9 parts, soybean
2-4 parts, bentonite 10-12 parts, fertile soil 12-14 parts, carbonate 2-4 parts.
3. high temperature resistance pressure-bearing retaining wall agent according to claim 2, it is characterised in that in terms of mass fraction, natural plant
75 parts, 25 parts of fiber substance, 2 parts of apple skin, 5 parts of Exocarpium Juglandis Immaturus, 2 parts of tealeaves, 8 parts of stalk, 3 parts of soybean, 11 parts of bentonite,
13 parts of fertile soil, 3 parts of carbonate.
4. the high temperature resistance pressure-bearing retaining wall agent according to claim any one of 1-3, it is characterised in that natural plant includes field
One or more of combinations in cyanines glue, guar gum, flax gum, fenugreek gum.
5. the high temperature resistance pressure-bearing retaining wall agent according to claim any one of 1-3, it is characterised in that fiber substance includes closing
One or more into fiber, natural fiber and cellulose.
6. high temperature resistance pressure-bearing retaining wall agent according to claim 5, it is characterised in that fiber substance is nano-cellulose.
7. high temperature resistance pressure-bearing retaining wall agent according to claim 6, it is characterised in that fiber substance is carboxymethyl Nanowire
Dimension element.
8. the high temperature resistance pressure-bearing retaining wall agent according to claim any one of 1-3, it is characterised in that the carbonate includes carbon
One or more in sour calcium, sodium carbonate.
9. high temperature resistance pressure-bearing retaining wall agent according to claim 8, it is characterised in that the carbonate is precipitated calcium carbonate.
10. high temperature resistance pressure-bearing retaining wall agent according to claim 1, it is characterised in that in the step (A), using ethanol
The time control of immersion is in more than 2h.
11. high temperature resistance pressure-bearing retaining wall agent according to claim 10, it is characterised in that the time control soaked using ethanol
In 3-4h.
12. high temperature resistance pressure-bearing retaining wall agent according to claim 11, it is characterised in that in the step (A), ethanol is work
It is more than industry level purity.
13. high temperature resistance pressure-bearing retaining wall agent according to claim 1, it is characterised in that in the step (A), the speed of mashing
Rate is controlled between 100-500rpm.
14. high temperature resistance pressure-bearing retaining wall agent according to claim 13, it is characterised in that the time control of mashing is in 30-
40min。
15. the high temperature resistance pressure-bearing retaining wall agent according to claim any one of 1-3, it is characterised in that in the step (C),
Natural plant, fiber substance and carbonate are mixed into 10-20min, then add other materials.
16. high temperature resistance pressure-bearing retaining wall agent according to claim 15, it is characterised in that natural plant, fiber substance
And the speed control that carbonate mixes is in 200-400rpm.
17. high temperature resistance pressure-bearing retaining wall agent according to claim 16, it is characterised in that add Exocarpium Juglandis Immaturus, stalk, tea
Leaf, soybean, apple skin, the speed control that finally addition soil paste liquid is uniformly mixed is between 300-700rpm, mixing time
Control is in 20-40min.
18. the application of the high temperature resistance pressure-bearing retaining wall agent described in claim any one of 1-17, it is characterised in that by the retaining wall agent
It is added in drilling well base fluid, the retaining wall agent is the 2-8wt% of the drilling well base fluid quality.
19. application according to claim 18, it is characterised in that the retaining wall agent is the 3- of the drilling well base fluid quality
7wt%.
20. application according to claim 19, it is characterised in that the retaining wall agent is the 4- of the drilling well base fluid quality
6wt%.
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| CN201710365455.7A CN107011880B (en) | 2017-05-22 | 2017-05-22 | A kind of high temperature resistance pressure-bearing retaining wall agent and preparation method thereof of drilling fluid, application |
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| CN201710365455.7A CN107011880B (en) | 2017-05-22 | 2017-05-22 | A kind of high temperature resistance pressure-bearing retaining wall agent and preparation method thereof of drilling fluid, application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021250154A1 (en) * | 2020-06-10 | 2021-12-16 | Herbstreith & Fox Gmbh & Co. Kg Pektin-Fabriken | Use of an activated pectin-containing apple fiber for producing products |
| WO2021250156A1 (en) * | 2020-06-10 | 2021-12-16 | Herbstreith & Fox Gmbh & Co. Kg Pektin-Fabriken | Use of an activated pectin-containing apple fiber for producing products |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107603574A (en) * | 2017-10-11 | 2018-01-19 | 成都瑞吉星化工有限责任公司 | A kind of drilling water base sealing agent and its application method |
| CN108559463A (en) * | 2018-01-17 | 2018-09-21 | 天津科技大学 | A kind of Cellulose nanocrystal and preparation method thereof as water-base drilling fluid anti-sloughing agent |
| CN116083062B (en) * | 2021-11-05 | 2024-05-31 | 中国石油化工股份有限公司 | High-temperature environment-friendly clean drilling fluid and preparation method thereof |
| CN114539994B (en) * | 2022-04-24 | 2022-07-15 | 山东维斯特尔石油科技有限公司 | Reservoir drilling fluid system and preparation method thereof |
| CN116891731A (en) * | 2023-07-18 | 2023-10-17 | 核工业二八0研究所 | Formula of wall protection slurry for loose complex rock formation drilling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO855095L (en) * | 1985-01-24 | 1986-07-25 | Halliburton Co | Diluents for use in aqueous drilling fluids. |
| CN102220111B (en) * | 2011-04-27 | 2013-07-03 | 河北义安石油钻井材料有限公司 | Leak stopping and wall protecting agent for petroleum drilling fluid and preparation method thereof |
| CN102925126B (en) * | 2011-08-09 | 2014-11-05 | 中国石油大学(北京) | Saponin-containing composite type hydrate anti-agglomerant |
| US20130274149A1 (en) * | 2012-04-13 | 2013-10-17 | Schlumberger Technology Corporation | Fluids and methods including nanocellulose |
| CN103555298B (en) * | 2013-11-15 | 2015-10-14 | 西安石油大学 | Method and the application of additive for drilling fluid is prepared by green peel of walnut |
| CN103555300B (en) * | 2013-11-15 | 2015-09-23 | 西安石油大学 | Method and the application of Environment-protecting Drilling Fluids viscosity reduction fluid loss agent is prepared by Cortex walnut |
| CN106497526A (en) * | 2016-09-27 | 2017-03-15 | 任丘市力科节能材料有限公司 | A kind of plugging while drilling pressure-bearing retaining wall agent and preparation method thereof of drilling fluid |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021250154A1 (en) * | 2020-06-10 | 2021-12-16 | Herbstreith & Fox Gmbh & Co. Kg Pektin-Fabriken | Use of an activated pectin-containing apple fiber for producing products |
| WO2021250156A1 (en) * | 2020-06-10 | 2021-12-16 | Herbstreith & Fox Gmbh & Co. Kg Pektin-Fabriken | Use of an activated pectin-containing apple fiber for producing products |
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