CN110330956A - A kind of Environment-protecting Drilling Fluids polyaminoacid class thinner and preparation method thereof - Google Patents
A kind of Environment-protecting Drilling Fluids polyaminoacid class thinner and preparation method thereof Download PDFInfo
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- CN110330956A CN110330956A CN201910617540.7A CN201910617540A CN110330956A CN 110330956 A CN110330956 A CN 110330956A CN 201910617540 A CN201910617540 A CN 201910617540A CN 110330956 A CN110330956 A CN 110330956A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/10—Alpha-amino-carboxylic acids
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- 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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- 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
- C09K2208/32—Anticorrosion additives
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Abstract
The present invention provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner and preparation method thereof, belongs to oil exploration and exploitation technical field；Polyaminoacid class thinner prepared by the present invention, by weight, including following raw material: 30~35 parts of amino acid A, 10~13 parts of amino acid B, 10~15 parts of catalyst, 20~25 parts of sodium hydroxide, 15~20 parts of initiator, 100~120 parts of water；Using amino acid as the polyaminoacid thinner of Material synthesis, have viscosity break ratio high, have good salt resistance, anticalcium ability, while there is good temperature resistance ability, in 120 DEG C of heat rolling experiment, viscosity break ratio still can reach 65% or more；Polyaminoacid can be voluntarily biodegradable as environmental type thinner, does not pollute drilling well soil nearby, meets the environmental protection concept of oil-gas field development instantly.
Description
Technical field
The present invention relates to a kind of Environment-protecting Drilling Fluids polyaminoacid class thinners and preparation method thereof, belong to oil-gas exploration
With development technique field.
Background technique
Additive for drilling fluid is important one of oil field chemical, is the substance for being adjustable property of drilling fluid.For each
Mouth oil/gas well, it is necessary to according to certain formula, be configured to required brill using various raw material with slurry and chemical treatments
Well liquid, or add them in drilling fluid currently in use, to adjust and safeguard the performance of drilling fluid at any time.It is general next
It says, drilling fluid raw material with slurry refer in middle dosage biggish basic component, such as bentonite, water, oil and barite with slurry etc..
Inorganic agent then refers to be added for improving and stablizing property of drilling fluid, or to meet the chemistry that certain performance of drilling fluid is needed and is added
Add agent.Inorganic agent is the core of drilling fluid, and often seldom dosage will generate strong influence to property of drilling fluid.
The main function of thinner is the Preferential adsorption place weak in clay edge aquation, and hydrophilic group increases these ground
The hydrated sheath of side weakens or breaks the reticular structure of clay particle composition, releases Free water, and the flowing reduced between viscous particle rubs
Resistance is wiped, the shear force of drilling fluid and viscosity are reduced.Thinner can inhibit drilling cuttings hydration swelling and dispersion, then can be reduced solid
Grain number mesh is also beneficial to reduce drilling fluid viscosity, improves mobility.Although solid control equipment can effectively clear various in drilling fluid
Solid phase plays a part of to adjust drilling fluid rheology, reduces thinner usage amount, but the use of live solid control equipment is paid no attention to now
Think, the effect of thinner is also just more important.
Drilling fluid thinner both domestic and external is various in style, but as oil-gas exploration and development geological conditions is more complicated, existing
The latent defect of drilling fluid thinner constantly exposes.Although natural polymer subclass thinner raw material is easy to get, is cheap, defect
It is more, there are some temperature resistances, anti-salt property are poor, or even contain toxic component, such as ferrochrome lignosulfonate.At present field use compared with
More polymer drilling fluid thinners, treatment effect is preferable, and price is higher.Some thinners, laboratory evaluation viscosity reducing effect is good,
Dose need to be increased when field application, if dosage is too small, can be disposed of quickly with landwaste, polymer, maintenance period is short, leads
Drilling cost is caused to increase.Furthermore it is not degradable with the polymer that the monomers such as acrylic acid synthesize, it pollutes the environment, is unfavorable for environmental protection.
Therefore, a kind of efficient and cheap is invented, biodegradable viscosity depressant for drilling fluid is oil-gas field development instantly
Important directions.
Summary of the invention
For some problems existing in the prior art, the present invention provides a kind of Environment-protecting Drilling Fluids polyaminoacid classes
Thinner, the polyaminoacid class thinner by weight, including following raw material: amino acid A30~35 part, amino acid B 10
~13 parts, 10~15 parts of catalyst, 20~25 parts of sodium hydroxide, 15~20 parts of initiator, 100~120 parts of water；The amino acid
A is acidic amino acid, and the amino acid B includes basic amino acid or polar neutral amino acid.
As a preferred technical solution of the present invention, the weight part ratio of the amino acid A, amino acid B and initiator is
(2~4): (0.5~1.5): (0.5~2).
As a kind of preferred technical solution of the present invention, the weight part ratio of the amino acid A, amino acid B and initiator
For (2.5~3.5): 1:(1.3~1.8).
As a preferred technical solution of the present invention, the acidic amino acid is L-Aspartic acid, one in glutamic acid
Kind.
As a preferred technical solution of the present invention, the basic amino acid is one of lysine, arginine, institute
Stating polar neutral amino acid is one of asparagine, glutamine.
As a kind of most preferred technical solution of the present invention, the amino acid B is lysine.
As a preferred technical solution of the present invention, the initiator is amino acid C.
As a preferred technical solution of the present invention, the amino acid C is the amino acid containing aromatic ring structure.
As a kind of most preferred technical solution of the present invention, the amino acid containing aromatic ring structure is selected from phenylpropyl alcohol ammonia
One of acid, tryptophan, tyrosine.
As a preferred technical solution of the present invention, the catalyst is one of phosphoric acid, polyphosphoric acids.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, as
A preferred technical solution of the present invention, it is described the preparation method is as follows:
(1) amino acid A, catalyst, 5~10 parts of water are sequentially added into reaction kettle, reaction 2 at 170 DEG C~200 DEG C~
5h；
(2) into step 1, amino acid B is added in reaction kettle, is reacted 2~5h at 170 DEG C~200 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in remaining water, keeps being added at 10~60 DEG C of temperature and causes
Agent is stirred to react 2~5h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 8~11 to get polyaminoacid class thinner.
As a kind of preferred technical solution of the present invention, the system of Environment-protecting Drilling Fluids polyaminoacid class thinner
Preparation Method is as follows:
(1) amino acid A, catalyst, 5~10 parts of water are sequentially added into reaction kettle, reaction 2.5 at 175 DEG C~180 DEG C~
4h；
(2) into step 1, amino acid B is added in reaction kettle, is reacted 2.5~4.5h at 175 DEG C~180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in remaining water, keeps being added at 20~40 DEG C of temperature and causes
Agent is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
As a kind of most preferred technical solution of the present invention, the system of Environment-protecting Drilling Fluids polyaminoacid class thinner
Preparation Method is as follows:
(1) amino acid A, catalyst, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, amino acid B is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in remaining water, keeps that initiator is added at 23 DEG C of temperature,
It is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
The utility model has the advantages that having viscosity break ratio high using amino acid as the polyaminoacid thinner of Material synthesis, have anti-well
Salt, anticalcium ability, as the increase of dosage greatly improves the dispersion performance of bentonite slurry.There is good temperature resistance energy simultaneously
Power, in 120 DEG C of heat rolling experiment, viscosity break ratio still can reach 65% or more.Compared to traditional FCSL, polyacrylic thinner
There is better viscosity reducing capability, has good compatibility with other drilling fluid additives.Polyaminoacid thinner has good simultaneously
Good corrosion inhibition prevents drilling tool drilling rod from corroding.Polyaminoacid can be voluntarily biodegradable as environmental type thinner, not dirty
Drilling well soil nearby is contaminated, the environmental protection concept of oil-gas field development instantly is met.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention, illustrate the present invention below by way of specific embodiment, but is not limited to given below specific
Embodiment.
The present invention provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, the polyaminoacid class thinner is pressed
Parts by weight meter, including following raw material: amino acid A30~35 part, 10~13 parts of amino acid B, 10~15 parts of catalyst, hydroxide
20~25 parts of sodium, 15~20 parts of initiator, 100~120 parts of water；The amino acid A is acidic amino acid, the amino acid B packet
Include basic amino acid or polar neutral amino acid.
In a preferred embodiment, the weight part ratio of the amino acid A, amino acid B and initiator is (2~4):
(0.5~1.5): (0.5~2).
In a kind of preferred embodiment, the weight part ratio of the amino acid A, amino acid B and initiator is (2.5
~3.5): 1:(1.3~1.8).
During the experiment it is found by the applicant that polyaminoacid thinner performance and molecular structure have much relations.The amino
The weight part ratio of sour A, amino acid B and initiator are as follows: (2~4): (0.5~1.5): when (0.5~2), the viscosity break ratio of thinner is obtained
To further increasing, conjecture the reason is that: polyaminoacid thinner contains-COO- ,-NH2 isopolarity group and-CH2- nonpolarity base
Group, power is different the effects of due to gravitation of the different groups in drilling fluid, repulsion, has polyaminoacid molecule in drilling fluid
Different extended conformations, thus there is different absorption properties to the clay of different shape.The amino acid A, amino acid B and draw
Send out the weight part ratio of agent are as follows: (2.5~3.5): 1:(1.3~1.8) when, the polar group and non-polar group in molecule are with certain
Ratio coexist, just be suitble to different shape clay adsorption entails, to increase the thickness of clay particle surface hydration shell
Degree enhances the mutually exclusive power between clay particle, removes the space net structure formed between clay particle, releases freedom
Water makes the viscosity reducing effect of polyaminoacid maintain optimum state.
In a preferred embodiment, the acidic amino acid is one of L-Aspartic acid, glutamic acid.
In a kind of most preferred embodiment, the amino acid A is L-Aspartic acid.
In a kind of most preferred embodiment, the parts by weight of the L-Aspartic acid are 33 parts.
In a preferred embodiment, the L-Aspartic acid be purchased from Guangzhou Hu Ao Chemical Co., Ltd., No. CAS
For 56-84-8.
In a preferred embodiment, the basic amino acid is one of lysine, arginine, the polarity
Neutral amino acid is one of asparagine, glutamine.
Applicants have discovered that absorption of the polymer individually generated by L-Aspartic acid on clay particle is less, viscosity reduction
Rate reduces.After amino acid B is added, amino acid B and aspartic acid form block polymer, on the one hand which is adsorbed on clay
On particle, the reticular structure formed between clay particle is broken, while reacting shape with the other polymers in drilling fluid system
At stable complex compound, the reticular structure for interacting and being formed between other polymers has been broken；The especially described amino acid B
When for lysine, obtained polyaminoacid class thinner viscosity break ratio promoted it is most significant, conjecture be because are as follows: the thinner exists first
Particle surface forms one layer thin of aquation Cation adsorption layer, and it is dense that subsequent thinner by absorption layer surface point is gradually diffused into solution
It spends uniform place and forms diffusion layer, adsorption layer respectively comes with opposite charge with diffusion layer, when the amino acid B is lysine,
Repulsive force between adsorption layer and the current potential official post clay gel grain of diffusion layer increases, so that the viscosity of drilling fluid be made to reduce, flows
Property improves.
In a kind of most preferred embodiment, the amino acid B is lysine.
In a kind of most preferred embodiment, the parts by weight of the lysine are 11 parts.
In a kind of most preferred embodiment, the lysine be purchased from Hubei Yuancheng Saichuang Technology Co., Ltd., No. CAS
For 56-87-1.
In one embodiment, the substitute of the lysine is asparagine.
In one embodiment, the asparagine is purchased from Wuhan Xin Weiye Chemical Co., Ltd., and No. CAS is
5794-13-8。
In one embodiment, the substitute of the lysine is glutamine.
In one embodiment, the glutamine is purchased from Nanjing Tai Ye Biotechnology Co., Ltd, and No. CAS is
61348-28-5。
In a preferred embodiment, the initiator is amino acid C.
In a preferred embodiment, the amino acid C is the amino acid containing aromatic ring structure.
In a preferred embodiment, the amino acid containing aromatic ring structure be selected from phenylalanine, tryptophan,
One of tyrosine.
Applicants have discovered that after amino acid A and amino acid B polymerize cyclization under the effect of the catalyst, after initiator is added
Polyamide open loop is promoted to form the polymer containing rigid radical, due to containing a large amount of-COO on polymer molecular chain-、-CONH
Group is adsorbed on positively charged clay particle surface, enhances the phase repulsive interaction between clay, while polar group makes clay
Thick hydrated sheath is formed on the end face of particle, weakens end-end between clay, and the connection of end-face reduces the viscosity of drilling fluid.
The applicant has been surprisingly found that, when especially initiator is tryptophan, in 120 DEG C of heat rolling experiment, viscosity break ratio fall is very
It is few.Conjecture reason may be: when thinner just starts to contact with clay, loose adsorption layer is quickly formed in surface of clay,
With the extension of time, surface of clay is gradually all covered, the presence of active group can enhance fragrance in tryptophan at this time
The coplanarity of interannular finally promotes thinner to form fine and close multilayer adsorption layer in surface of clay, makes thinner under hot conditions
Still there is high viscosity break ratio.
In a kind of most preferred embodiment, the initiator is tryptophan.
In a kind of most preferred embodiment, the parts by weight of the tryptophan are 18 parts.
In a kind of most preferred embodiment, the tryptophan is purchased from Hubei Ju Sheng Science and Technology Ltd., and No. CAS is
73-22-3。
In one embodiment, the substitute of the tryptophan is phenylalanine.
In one embodiment, the phenylalanine is purchased from Hubei Yuancheng Saichuang Technology Co., Ltd., and No. CAS is 673-
31-4。
In one embodiment, the substitute of the tryptophan is tyrosine.
In one embodiment, the tyrosine is purchased from Hubei Yuancheng Saichuang Technology Co., Ltd., and No. CAS is 60-18-
4。
In a preferred embodiment, the catalyst is phosphoric acid, polyphosphoric acids.
In a kind of most preferred embodiment, the catalyst is polyphosphoric acids.
In a kind of most preferred embodiment, the parts by weight of the polyphosphoric acids are 12 parts.
In a kind of most preferred embodiment, the polyphosphoric acids is purchased from Hangzhou Bai Yi Chemical Co., Ltd., and No. CAS is
8017-16-1。
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, one
In kind of preferred embodiment, it is described the preparation method is as follows:
(1) amino acid A, catalyst, 5~10 parts of water are sequentially added into reaction kettle, reaction 2 at 170 DEG C~200 DEG C~
5h；
(2) into step 1, amino acid B is added in reaction kettle, is reacted 2~5h at 170 DEG C~200 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in remaining water, keeps being added at 10~60 DEG C of temperature and causes
Agent is stirred to react 2~5h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 8~11 to get polyaminoacid class thinner.
In a kind of preferred embodiment, the preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner
It is as follows:
(1) amino acid A, catalyst, 5~10 parts of water are sequentially added into reaction kettle, reaction 2.5 at 175 DEG C~180 DEG C~
4h；
(2) into step 1, amino acid B is added in reaction kettle, is reacted 2.5~4.5h at 175 DEG C~180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in remaining water, keeps being added at 20~40 DEG C of temperature and causes
Agent is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
In a kind of most preferred embodiment, the preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner
It is as follows:
(1) amino acid A, catalyst, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, amino acid B is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in remaining water, keeps that initiator is added at 23 DEG C of temperature,
It is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 1
The embodiment of the present invention 1 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 33 parts of L-Aspartic acid, 11 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of tryptophan, water 115
Part.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 2
The embodiment of the present invention 2 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 30 parts of L-Aspartic acid, 10 parts of lysine, 10 parts of polyphosphoric acids, 20 parts of sodium hydroxide, 15 parts of tryptophan, water 100
Part.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 92 parts of water, keeps being slowly added to color ammonia at 23 DEG C of temperature
Acid is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 3
The embodiment of the present invention 3 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 35 parts of L-Aspartic acid, 13 parts of lysine, 15 parts of polyphosphoric acids, 25 parts of sodium hydroxide, 20 parts of tryptophan, water 120
Part.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 112 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 4
The embodiment of the present invention 4 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 33 parts of L-Aspartic acid, 9 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of tryptophan, water 115
Part.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 5
The embodiment of the present invention 5 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 33 parts of L-Aspartic acid, 15 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of tryptophan, water 115
Part.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 6
The embodiment of the present invention 6 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 33 parts of L-Aspartic acid, 11 parts of asparagine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of tryptophan, water
115 parts.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, asparagine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 7
The embodiment of the present invention 7 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 33 parts of L-Aspartic acid, 11 parts of glutamine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of tryptophan, water
115 parts.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, glutamine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 8
The embodiment of the present invention 8 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 33 parts of L-Aspartic acid, 11 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of phenylalanine, water
115 parts.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to benzene at 23 DEG C of temperature
Alanine is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 9
The embodiment of the present invention 9 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, preparation
Raw material includes 33 parts of L-Aspartic acid, 11 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of tyrosine, water 115
Part.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to network at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 10
The embodiment of the present invention 10 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, system
Standby raw material includes 33 parts of L-Aspartic acid, 11 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 16.5 parts of tryptophan, water
115 parts.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 11
The embodiment of the present invention 11 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, system
Standby raw material includes 33 parts of L-Aspartic acid, 11 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 19 parts of tryptophan, water
115 parts.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 12
The embodiment of the present invention 12 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, system
Standby raw material includes 33 parts of L-Aspartic acid, 11 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 12 parts of tryptophan, water
115 parts.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 13
The embodiment of the present invention 13 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, system
Standby raw material includes 33 parts of L-Aspartic acid, 11 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 24 parts of tryptophan, water
115 parts.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 14
The embodiment of the present invention 14 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, system
Standby raw material includes 33 parts of L-Aspartic acid, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of tryptophan, 115 parts of water.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) 107 parts of water will be added in step 1 reaction kettle, keeps being slowly added to tryptophan at 23 DEG C of temperature, is stirred to react
3h；
(3) sodium hydroxide is added to step 2 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Embodiment 15
The embodiment of the present invention 15 provides a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, by weight, system
Standby raw material includes 50 parts of L-Aspartic acid, 11 parts of lysine, 12 parts of polyphosphoric acids, 23 parts of sodium hydroxide, 18 parts of tryptophan, water
115 parts.
Second aspect of the present invention provides a kind of preparation method of Environment-protecting Drilling Fluids polyaminoacid class thinner, described
The preparation method is as follows:
(1) L-Aspartic acid, polyphosphoric acids, 8 parts of water are sequentially added into reaction kettle, react 3.5h at 178 DEG C；
(2) into step 1, lysine is added in reaction kettle, is reacted 4h at 180 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in 107 parts of water, keeps being slowly added to color at 23 DEG C of temperature
Propylhomoserin is stirred to react 3h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 9 to get polyaminoacid class thinner.
Performance test:
1. the measurement of viscosity break ratio
Test method: according to the Heilungkiang Q/DLYH017-2019 Yi Rui Chemical Co., Ltd. company standard, " drilling fluid drops
Stick polyaminoacid class YR-1 " relevant regulations are tested.
The preparation of 1.1 bases slurry
Distilled water 500ml, natrium carbonicum calcinatum 1.2g, sodium bentonite 30g, evaluation soil 55g, high-speed stirring are added in goblet
20min is mixed, at least during the stop two times, and to scrape bentonite adhered to the wall of the container, curing in airtight condition is for 24 hours at 24 DEG C ± 3 DEG C.
1.2 viscosity break ratio
It takes a base to starch, stirs 10min with high-speed mixer, with the reading of rotary viscosity design determining 100r/min, number
Otherwise value should adjust bentonite dosage in 50 ± 5 ranges.2.5g sample is added in another base slurry again, uses high-speed stirred
Machine stirs 20min, with the reading of rotary viscosity design determining 100r/min；Slurry is starched and tested to base and is respectively charged into ageing can, is put into
In roller heating furnace, the heat rolling 16h at 120 DEG C, after taking-up is cooled to room temperature, high-speed stirred 20min uses rotary viscosity design determining
Then the reading of 100r/min calculates room temperature, high temperature viscosity break ratio by formula (1), (2).
In formula:
ρ -- indicate room temperature viscosity break ratio, %；
-- indicate the reading when 100r/min of room temperature base slurry；
-- indicate the reading when 100r/min of room temperature sample-adding slurry；
ρ ' -- indicate high temperature viscosity break ratio, %；
-- the reading when 100r/min that base is starched after expression high temperature；
-- the reading when 100r/min of slurry is loaded after expression high temperature；
The test result of embodiment 1-15 is shown in Table 1.
Table 1
Description of the invention and application be it is illustrative, it is not intended to limit the scope of the present invention to the above embodiment,
Therefore, present invention is not limited by this embodiment, what any technical solution obtained using equivalence replacement was protected in the present invention
In range.
Claims (10)
1. a kind of Environment-protecting Drilling Fluids polyaminoacid class thinner, which is characterized in that the polyaminoacid class thinner is by weight
Measure part meter, including following raw material: 30~35 parts of amino acid A, 10~13 parts of amino acid B, 10~15 parts of catalyst, sodium hydroxide
20~25 parts, 15~20 parts of initiator, 100~120 parts of water；The amino acid A is acidic amino acid, and the amino acid B includes
Basic amino acid or polar neutral amino acid.
2. Environment-protecting Drilling Fluids according to claim 1 polyaminoacid class thinner, which is characterized in that the amino acid
A, the weight part ratio of amino acid B and initiator is (2~4): (0.5~1.5): (0.5~2).
3. Environment-protecting Drilling Fluids according to claim 1 polyaminoacid class thinner, which is characterized in that the amino acid
A, the weight part ratio of amino acid B and initiator is (2.5~3.5): 1:(1.3~1.8).
4. described in any item Environment-protecting Drilling Fluids polyaminoacid class thinner according to claim 1~3, which is characterized in that
The acidic amino acid is one of L-Aspartic acid, glutamic acid.
5. described in any item Environment-protecting Drilling Fluids polyaminoacid class thinner according to claim 1~3, which is characterized in that
The basic amino acid is one of lysine, arginine, and the polar neutral amino acid is asparagine, glutamine
One of.
6. described in any item Environment-protecting Drilling Fluids polyaminoacid class thinner according to claim 1~3, which is characterized in that
The amino acid B is lysine.
7. described in any item Environment-protecting Drilling Fluids polyaminoacid class thinner according to claim 1~3, which is characterized in that
The initiator is amino acid C.
8. Environment-protecting Drilling Fluids according to claim 7 polyaminoacid class thinner, which is characterized in that the amino acid
C is the amino acid containing aromatic ring structure.
9. Environment-protecting Drilling Fluids according to claim 8 polyaminoacid class thinner, which is characterized in that described to contain virtue
The amino acid of fragrant ring structure is selected from one of phenylalanine, tryptophan, tyrosine.
10. a kind of preparation side of Environment-protecting Drilling Fluids polyaminoacid class thinners described in any item according to claim 1~9
Method, which is characterized in that it is described the preparation method is as follows:
(1) amino acid A, catalyst, 5~10 parts of water are sequentially added into reaction kettle, react 2~5h at 170 DEG C~200 DEG C；
(2) into step 1, amino acid B is added in reaction kettle, is reacted 2~5h at 170 DEG C~200 DEG C, is obtained intermediate；
(3) intermediate obtained in step 2 reaction kettle is dissolved in remaining water, keeps that initiator is added at 10~60 DEG C of temperature,
It is stirred to react 2~5h；
(4) sodium hydroxide is added to step 3 reaction kettle, adjusting pH value is 8~11 to get polyaminoacid class thinner.
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