CN106893566A - A kind of emulsifying agent of oil-base mud and preparation method thereof - Google Patents
A kind of emulsifying agent of oil-base mud and preparation method thereof Download PDFInfo
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- CN106893566A CN106893566A CN201710065524.2A CN201710065524A CN106893566A CN 106893566 A CN106893566 A CN 106893566A CN 201710065524 A CN201710065524 A CN 201710065524A CN 106893566 A CN106893566 A CN 106893566A
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- C09K8/02—Well-drilling compositions
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Abstract
The invention provides a kind of emulsifying agent of oil-base mud and preparation method thereof.The composition of the emulsifying agent of the oil-base mud includes：The oleyl alcohol of 10wt% 50wt%, the compound A of 10wt% 50wt%, the compound B of 5wt% 30wt%, the compound C of 5wt% 40wt%, the compound F of compound E, the 5wt% 40wt% of compound D, the 5wt% 40wt% of 5wt% 40wt%, the glycerine of 1wt% 10wt% and the fat oil less than 5wt%, total percentage composition that the emulsifying agent of the oil-base mud is respectively constituted is 100%.Present invention also offers the preparation method of the emulsifying agent of above-mentioned oil-base mud.The emulsifying agent of oil-base mud of the invention can be used for high temperature, highdensity oil-base mud.
Description
Technical field
The present invention relates to a kind of emulsifying agent and preparation method thereof, more particularly to a kind of oil-base mud emulsifying agent and its preparation
Method, belongs to oil-gas exploration technical field.
Background technology
Fluid system transports material and chemical substance, and plays downhole hydraulic, power in oil/gas drilling and production
The effect of instrument.Fracturing fluid is a kind of for pressure break rock formation, pumps into the liquid of carrying proppant in well.It is high in target depth
Pressure injection fracturing fluid can create crack on rock formation, and the proppant (such as husky or other particulates) in fracturing fluid can lead to
These cracks are crossed, to prevent crack closure after high-pressure injection stops.Crack keeps opening-wide state by proppant support, and reservoir can
To keep the permeability of oil gas salt solution, these fluids can be made to be pumped out from well.Drilling fluid, that is, mud, in drillng operation
In play a part of lubrication and shipped material.Mud returns to earth's surface and can typically arrive mud pit, and some cooling agents can be added before entering well
And stabilizer.Drilling fluid takes landwaste to earth's surface from shaft bottom, cools down drill bit, there is provided the such reservoir fluid of liquid column hydrostatic pressure would not
Into in well.Drilling fluid can suspend landwaste in the case where drill bit stops.Powdered rock can be suspended at drill bit
In drilling fluid, well is recycled.Drilling fluid has many functions, including downhole tool hydraulic energy and pulse remote sensing survey instrument
Information transfer.Suitable drilling fluid can be selected according to the situation of pit shaft, anti-corrosion capability and to the nocuity of reservoir.
Drilling fluid includes water-base mud and oil-base mud.Water-base mud be free to flowing, during termination of pumping, mud in turn on pump
The shear force of slurry is mainly suspension landwaste and prevents turn on pump, it is necessary to apply extra pump pressure destruction gel structure, and freedom is reached again
Flow regime.Water and clay are basis, and multiple additives are added in drilling fluid, the cooling agent and lubrication for having regulation viscosity
Agent.Oil-base mud contains the composition of oil product, such as diesel oil, and used as mobile phase, it can increase lubricity in oil-base mud
With reduction viscosity.Additionally, oil-base mud is non-degradable at a higher temperature.By analyzing the landwaste of oil-base mud, have extra
Environmental problem considers.Oil and water are the basic composition parts of oil-base mud, add multiple additives to keep the dispersion of water, in oil base
Mud reclaimed water is pollutant.Emulsifying agent, wetting agent and gelling agent are used to control the stability of oil-base mud, viscosity, cooling.Oil
The stability of base mud refers to prevent mud to be divided into 2 layers, oil reservoir and water layer.
With drilling to deeper depth, underground situation also can be more extreme.Drilling fluid must be able to bear more undergrounds
Complex situations.Oil-base mud will bear the HTHP situation under deeper well depth.Water-base mud is not suitable in HTHP
Used in the case of more extreme underground.Deeper requirement of the well to oil-base mud can also increase the oil-base mud, it is necessary to more stable.
Existing oil-base mud is by adding various auxiliary agents come control stability, viscosity, cooling and lubricity.
US5593953 is by Malchow Jr in No. 14 registrations of in January, 1997, it is believed that oil-base mud needs a kind of emulsifying agent
Salt solution or contaminated water is emulsified to reduce viscosity.This auxiliary agent is considered as a kind of frictional resistance improver, this chemical formula by
US8969261 is provided, and is that announcement is to change solution viscosity in No. 3 registrations of in March, 2015 by Talingting Pabalan
Compound formulas.This compound can be added to various solution the insides, not exclusively go to influence drilling fluid in addition drilling fluid
Rheological property.
However, the technology mentioned before is not involved with identical material composition, similar composition is not also used before
In identical drilling fluid.The data for not having the emulsifying agent of drilling fluid under high density high-temperature condition is disclosed, especially nitrogenous breast
Agent keeps stabilization in the case of high-temperature high-density.
US6620770, was applied on the 16th by Kirsner in September in 2003, disclosed a kind of oil base mud containing polyamide and nitrogen
Slurry emulsifying agent.Polyamide is a kind of auxiliary agent for emulsifying oil-base mud, is worked before emulsifying agent addition drilling fluid here.It is this
Emulsifying agent is uncorrelated to high density high-temperature condition.And, example before teaches that and do not used in the case of high-temperature high-density
Nitrogenous emulsifying agent.US2011/0166047, a unazotized emulsifying agent is disclosed by Patel.But, the breast of the emulsifying agent
The property changed is not strong enough, constantly to be added during use.
In sum, there presently does not exist a kind of emulsifying agent can be used for hot environment and of good performance.
The content of the invention
In order to solve the above-mentioned technical problem, it is an object of the invention to provide using under a kind of high density, high-temperature condition
The emulsifying agent of oil-base mud.
In order to realize above-mentioned technical purpose, the invention provides a kind of emulsifying agent of oil-base mud, with the oil-base mud
The gross mass of emulsifying agent is 100% meter, and the composition of the emulsifying agent of the oil-base mud includes：The oleyl alcohol of 10wt%-50wt%,
The compound C, 5wt%- of the compound B, 5wt%-40wt% of the compound A, 5wt%-30wt% of 10wt%-50wt%
The compound F's, 1wt%-10wt% of the compound E, 5wt%-40wt% of the compound D, 5wt%-40wt% of 40wt% is sweet
Oil and the fat oil less than 5wt%, wherein, total percentage composition that the emulsifying agent of the oil-base mud is respectively constituted is 100%；
Compound A is 1,3- dihydroxy-isopropyl (E) -12- hydroxyoctadecanoic -9- olefin(e) acid esters；
Compound B is (9E, 9'E)-N, N'- (urea diyl is double (ethyl -2,1- diyls)) double 12- hydroxyoctadecanoics -9- alkene
Acid amides；
Compound C is (E) -12- hydroxy-ns, double (2- ((the E) -12- hydroxyoctadecanoic -9- enoyl-s) ethyls) 18 of N-
Alkane -9- acrylamides；
Compound D is (Z) -4- (double (2- ((E) -12- hydroxyoctadecanoic -9- enoyl-s) ethyl) amino) -4- oxygen butyl- 2-
Olefin(e) acid；
Compound E is 1,3- dihydroxy isopropyl -2- base (Z) -4- (double (2- ((E) -12- hydroxyoctadecanoic -9- enoyl-s)
Ethyl) amino) -4- oxygen but-2-ene acid fat；
Compound F is N1, N1, N4, N4- tetra- (2- (the dilute amide groups of (E) -12- hydroxyoctadecanoics -9-) ethyl) maleic acid acyl
Amine.
In the emulsifying agent of the oil-base mud that the present invention is provided, it is preferable that the composition of the emulsifying agent of the oil-base mud includes
The oleyl alcohol of 20wt%-30wt%, the compound B of the compound A, 10wt%-20wt% of 10wt%-30wt%.
In the emulsifying agent of the oil-base mud that the present invention is provided, it is preferable that the composition of the emulsifying agent of the oil-base mud includes
The compound E, 5wt%- of the compound D, 5wt%-10wt% of the compound C, 5wt%-10wt% of 5wt%-10wt%
The compound F of 20wt%.
Present invention also offers a kind of oil-base mud, oil-base mud include base oil, carry stick, heavy weight additive, fluid loss additive and
Emulsifying agent；
Wherein, emulsifying agent is the emulsifying agent of above-mentioned oil-base mud of the invention.
In the oil-base mud that the present invention is provided, it is preferable that counted with the gross mass of the oil-base mud as 100%, use
The raw material composition of oil-base mud includes：The base oil of 50wt%-95wt%, 1wt%-5wt%'s carries stick, 20wt%-70wt%
Heavy weight additive, the fluid loss additive of 5wt%-10wt%, the emulsifying agent of 0.3wt%-3wt%, oil-base mud raw material composition it is total
Percentage sum is 100%.
Specific embodiment of the invention, the base oil of use, carries stick, heavy weight additive, fluid loss additive and selects this area
Conventional reagent.
Carrying stick and can be suspended in mud landwaste in oil-base mud of the invention；Fluid loss additive can control mud to
Dehydration in stratum；Heavy weight additive can control density.Other components, if the wetting agent of control surface tension force will also add mud
In.
The emulsifying agent of the above-mentioned oil-base mud that the present invention is provided is used to emulsify the oil-base mud of high-temperature high-density.
The emulsifying agent of above-mentioned oil-base mud of the invention can be used for density for 2.0-2.8g/cm3Oil-base mud in.
In the present invention, the compound A-F in the emulsifying agent of oil-base mud has following structural formula：
Compound A：1,3- dihydroxy-isopropyl (E) -12- hydroxyoctadecanoic -9- olefin(e) acid esters；
Compound B：(9E, 9'E)-N, N'- (urea diyl is double (ethyl -2,1- diyls)) double 12- hydroxyoctadecanoics -9- alkene acyls
Amine；
Compound C：(E) -12- hydroxy-ns, double (2- ((the E) -12- hydroxyoctadecanoic -9- enoyl-s) ethyl) octadecanes of N- -
9- acrylamides；
Compound D：(Z) -4- (double (2- ((E) -12- hydroxyoctadecanoic -9- enoyl-s) ethyl) amino) -4- oxygen butyl- 2-
Olefin(e) acid；
Compound E：1,3- dihydroxy isopropyl -2- base (Z) -4- (double (2- ((E) -12- hydroxyoctadecanoic -9- enoyl-s) second
Base) amino) -4- oxygen but-2-ene acid fat；
Compound F：N1, N1, N4, N4- tetra- (2- (the dilute amide groups of (E) -12- hydroxyoctadecanoics -9-) ethyl) maleic acid acyl
Amine.
The emulsifying agent highest of oil-base mud of the invention may apply to density for 2.8g/cm3, temperature be more than 250 DEG C
High temperature, high-density slurry in.
Present invention also offers the preparation method of the emulsifying agent of above-mentioned oil-base mud, the preparation of the emulsifying agent of the oil-base mud
Method is comprised the following steps：
Heating fat oil adds diethylenetriamines to 60 DEG C -100 DEG C under nitrogen purge；Stop nitrogen purging, keep
Temperature is at 80 DEG C -120 DEG C；
1h-5h is reacted at 130 DEG C -170 DEG C；
150 DEG C of -170 DEG C of reaction 1h-3h are adjusted the temperature to, room temperature is cooled to；
Maleic anhydride is added, in 80 DEG C of -120 DEG C of reaction 0.5h-3h；
Adjust the temperature to 140 DEG C of -160 DEG C of reaction 0.5h-3h；
190 DEG C of -210 DEG C of reaction 0.1h-3h are adjusted the temperature to, oleyl alcohol is added, the emulsifying agent of oil-base mud is obtained.
In the preparation method of the emulsifying agent of above-mentioned oil-base mud of the invention, oleyl alcohol is the breast for improving oil-base mud
The temperature resistance of agent and deliquescent, is not involved in reaction, as the constituent of the emulsifying agent of oil-base mud.Therefore, oleyl alcohol
The content that addition can respectively be constituted according to the emulsifying agent of oil-base mud determines.
The compound that conventional nitrogenous emulsifying agent is included is the derivative of aliphatic acid, but nitrogen-containing compound drops at high temperature
May be poisonous after solution, so, the emulsifying agent to being used in high temperature deep well abandons addition nitrogen in being modified.And this hair
Bright emulsifying agent shows the stability of the nitrogen-containing compound of fatty acid derived, non-degradable at high temperature, will not also produce
Evil material.
The emulsifying agent of oil-base mud of the invention effectively can carry out viscosity reduction to oil-base mud, can make high temperature, high density
Reversely the oil-base mud of emulsification is stable.Can be deeper in well bore using the oil-base mud of the emulsifying agent of oil-base mud of the invention
(exceed ten thousand metres), temperature (more than 250 DEG C) higher, density are higher, and (density is 2.8g/cm3) well in carry out operation.
Emulsifying agent of the invention can be in the deep-well oil-base mud under high temperature, high density, less emulsifying agent addition
Use.
Brief description of the drawings
Fig. 1 is the drilling fluid of the emulsifying agent containing embodiment 1, mud density 2.0g/cm3, before ageing after rheological characteristic
The comparison curves of energy；
Fig. 2 is the drilling fluid of the emulsifying agent containing the present embodiment, mud density 2.0g/cm3, before ageing after demulsification electricity
The comparison curves of pressure；
Fig. 3 is the drilling fluid of the emulsifying agent containing the present embodiment, mud density 2.2g/cm3, before ageing after rheological characteristic
The comparison curves of energy；
Fig. 4 is the drilling fluid of the emulsifying agent containing the present embodiment, mud density 2.2g/cm3, before ageing after demulsification electricity
The comparison curves of pressure；
Fig. 5 is the drilling fluid of the emulsifying agent containing the present embodiment, mud density 2.4g/cm3, before ageing after rheological characteristic
The comparison curves of energy；
Fig. 6 is the drilling fluid of the emulsifying agent containing the present embodiment, mud density 2.4g/cm3, before ageing after demulsification electricity
The comparison curves of pressure；
Fig. 7 is the drilling fluid of the emulsifying agent containing the present embodiment, mud density 2.2g/cm3, before ageing after rheological characteristic
The comparison curves of energy；
Fig. 8 is the drilling fluid of the emulsifying agent containing the present embodiment, mud density 2.2g/cm3, before ageing after demulsification electricity
The comparison curves of pressure.
Specific embodiment
In order to be more clearly understood to technical characteristic of the invention, purpose and beneficial effect, now to skill of the invention
Art scheme carry out it is described further below, but it is not intended that to it is of the invention can practical range restriction.
Embodiment 1
A kind of emulsifying agent of oil-base mud is present embodiments provided, the gross mass with the emulsifying agent of the oil-base mud is
100% meter, the composition of the emulsifying agent of the oil-base mud includes：The change of the oleyl alcohol of 20wt%, compound A, 13wt% of 24wt%
The compound F and 1wt%- of compound E, 10wt% of compound D, 10wt% of compound C, 10wt% of compound B, 10wt%
The glycerine of 10wt% and the fat oil less than 5wt%；
Compound A is 1,3- dihydroxy-isopropyl (E) -12- hydroxyoctadecanoic -9- olefin(e) acid esters；
Compound B is (9E, 9'E)-N, N'- (urea diyl is double (ethyl -2,1- diyls)) double 12- hydroxyoctadecanoics -9- alkene
Acid amides；
Compound C is (E) -12- hydroxy-ns, double (2- ((the E) -12- hydroxyoctadecanoic -9- enoyl-s) ethyls) 18 of N-
Alkane -9- acrylamides；
Compound D is (Z) -4- (double (2- ((E) -12- hydroxyoctadecanoic -9- enoyl-s) ethyl) amino) -4- oxygen butyl- 2-
Olefin(e) acid；
Compound E is 1,3- dihydroxy isopropyl -2- base (Z) -4- (double (2- ((E) -12- hydroxyoctadecanoic -9- enoyl-s)
Ethyl) amino) -4- oxygen but-2-ene acid fat；
Compound F is N1, N1, N4, N4- tetra- (2- (the dilute amide groups of (E) -12- hydroxyoctadecanoics -9-) ethyl) maleic acid acyl
Amine.
Wherein, the raw material composition of oil-base mud includes：The oil of 50%-95wt%, 1wt%-5wt%'s carries stick,
The heavy weight additive of 20wt%-70wt%, the fluid loss additive of 5wt%-10wt%, the emulsifying agent of 0.3wt%-3wt%, oil-base mud
The mass percent sum of each raw material composition is 100%.
The emulsifying agent of above-mentioned oil-base mud follows the steps below preparation：
Heating fat oil adds diethylenetriamines to 70 DEG C under nitrogen purge；Stop nitrogen purging, maintain the temperature at
110℃；
1h-5h is reacted at 150 DEG C；
165 DEG C of reaction 1h-3h are adjusted the temperature to, room temperature is cooled to；
Maleic anhydride is added, 0.5h-3h is reacted at 90 DEG C；Wherein, fat oil：Diethylenetriamine：The matter of maleic anhydride
Amount is than being 1-1.5:1:0.3-0.5；
Adjust the temperature to 155 DEG C of reaction 0.5h-3h；
200 DEG C of reaction 0.1h-3h are adjusted the temperature to, oleyl alcohol is added, the emulsifying agent of oil-base mud is obtained.
Emulsifying agent makes mud stabilization by increasing dynamic stability, and emulsifying agent can be carried gluing and keep dispersed phase in mud
In suspension, therefore, it can by measurement rheological characteristic and electrical stability containing drilling fluid to describe the performance of mud.The present embodiment
In oil-base mud the rheological characteristic of emulsifying agent and the measurement result of electrical stability show the present embodiment oil-base mud emulsification
Agent can bear the temperature of more high density and Geng Gao.
Table 1
Table 1 shows the rheology for being added with the mud of the emulsifying agent of the oil-base mud of the present embodiment at 225 DEG C and 235 DEG C
Property and electrical stability.Rheological characteristic and electrical stability are that the oil-base mud sample before and after heat rolling is tested under 150 degrees Fahrenheits,
The proportion of oil-base mud is 2.0g/cm in table 13。
The result of rheological characteristic shows that the result of electrical stability shows in fig. 2 in Fig. 1.The performance of drilling fluid is rolled in heat
Front and rear stabilization.Fig. 1 and Fig. 2 display oil-base mud keeps uniform and stable when in high temperature, added with the emulsification of the present embodiment
The oil-base mud of agent, at high temperature, performance change very little, there is provided certain Flexible change.
Table 2
Counted by 100wt% of the gross mass of emulsifying agent before, the raw material composition of emulsifying agent is 40wt%-50wt%'s before
The compound I of the compound H, 10wt%-30wt% of compound G, 25wt%-60wt%, wherein, each raw material of emulsifying agent before
The mass percent sum of composition is 100%；
Compound G：(E)-N- (2- (2- ((E)-ten seven -8- alkene -1- bases) -4,5- dihydro -1H- imidazoles -5- bases) ethyl)
18-9- acrylamides；
Structural formula is：
Compound H：(9E, 9'E)-N, N'- (azane diyl is double (ethane -2,1- diyls)) double (Linolenic Acids-acrylamide)；
Structural formula is：
Compound I：(Z) -4- (double (2- ((9E, 11E)-Linolenic Acid, 11- diene acylamino-) ethyl) amino) -4- oxygen
For but-2-ene acid；
Structural formula is：
The mud of emulsifying agent is at 225 DEG C before the oil-base mud of the emulsifying agent of the expression addition the present embodiment of table 2 and use
Rheological characteristic and electrical stability after aging.Rheological characteristic and electrical stability are to the oil-base mud before and after heat rolling under 150 degrees Fahrenheits
Sample is tested, and rheology results show on Fig. 3, and electrical stability is represented on Fig. 4.
The mud of the emulsifying agent of the oil-base mud of addition the present embodiment (temperature rising) property retention stabilization before and after heat rolling.
Fig. 3 and Fig. 4 display mud stable performances in high temperature is exposed to.Electrical stability is the emulsion stability for evaluating reverse emulsion
Method.Numerical value is higher to mean that emulsion stability is stronger.Fig. 3 illustrates the mud of the emulsifying agent of addition the present embodiment before heat rolling
After have more preferable electrical stability, this explanation the present embodiment emulsifying agent have more preferable heat endurance.Additionally, rheological characteristic is also more steady
It is fixed.Plastic viscosity change is less than 5% before and after the mud heat rolling of the emulsifying agent for adding the present embodiment, using the mud of emulsifying agent before
Change close to 30%.As depicted in figs. 1 and 2, as a result show the oil-base mud of the emulsifying agent containing the present embodiment at higher temperature
Stability under degree and different high density.
Table 3
Table 3 shows that rheological characteristic and heat of the oil-base mud of the emulsifying agent of addition the present embodiment in 225 DEG C and 235 DEG C are steady
It is qualitative.Rheological characteristic is that the sample before and after heat rolling is tested in 150 degrees Fahrenheit, and 2.2g/cm has been used in table 33It is close
The mud of degree.
Table 4
Table 4 shows rheological characteristic and electricity stabilization of the mud of the emulsifying agent added with the present embodiment at 225 DEG C and 235 DEG C
Property.Rheological characteristic and electrical stability measurement are mud under 150 degrees Fahrenheits before and after heat rolling.The mud density that table 4 is used is 2.4g/
cm3Increase density using bloodstone.The result of rheological characteristic shows that the result of electrical stability shows on Fig. 6 on Fig. 5.
The performance of high-density slurry keeps stabilization before and after heat rolling (after temperature is raised).Shown more in Fig. 5 and Fig. 6
Mud property keeps stabilization at temperature high and the density of Geng Gao, and performance change is very small, with the addition of the emulsifying agent of the present embodiment
Mud under the conditions of high-temperature high-density performance change have certain elasticity.
Table 5
The display of table 5 is added with the aging rheological characteristic at 245 DEG C of the mud of the emulsifying agent of the present embodiment and electrical stability.Stream
Denaturation and electrical stability measurement are mud under 150 degrees Fahrenheits before and after heat rolling.The mud density that table 5 is used is 2.2g/cm3。
The result of rheological characteristic shows that the result of electrical stability shows on Fig. 8 on Fig. 7.The result of Fig. 7 and Fig. 8 further demonstrate
The emulsifying agent of the oil-base mud of the present embodiment stability at high temperature, can be seen that by change very small in table 3.225
DEG C, 235 DEG C and 245 DEG C of example all show the front and rear rising property retention stabilization with temperature and density of heat rolling.
By Fig. 1-Fig. 8, it can be seen that the emulsifying agent of the present embodiment is a kind of suitable for high-temperature high-density oil-base mud
Emulsifying agent.The high-density slurry of the emulsifying agent of the data display of table 1,3,4 and Fig. 1, Fig. 2, Fig. 5, Fig. 6 addition the present embodiment
Stability, with the increase of density, emulsifying agent is necessary for rheological characteristic and the electrical stability that mud is provided, complete in order to complete
Into underground work.The density range of table 3, table 5 and Fig. 5-Fig. 8 display mud is in 2.0-2.8g/cm3, addition the present embodiment breast
The mud of agent stability at high temperature.With temperature rise, emulsifying agent can maintain mud 15 ° -260 ° rheological characteristic and
Electrical stability.The viscosity of the emulsifying agent of the present embodiment and the suspending power to dispersed phase and landwaste can be born in deeper depth
Under down hole problem.
Emulsifying agent fails in deeper well depth application before table 2 and Fig. 3 and Fig. 4 show.Emulsifying agent before addition can not
The rheological characteristic and electrical stability of mud are maintained at higher temperatures.Need a kind of different emulsifying agent.As a comparison, table 2 shows
The various performances of the mud of the emulsifying agent of addition the present embodiment are shown.The conventional dosage of emulsifying agent is 1wt%-10wt% before.
The addition of the emulsifying agent of the present embodiment is 0.3wt%-3wt%.The emulsifying agent of the present embodiment can in high temperature, high density, compared with
Used in deep-well oil-base mud under few emulsifying agent addition.
Situation and working solution selection drilling fluid additive according to underground, with the growth of well depth, it is desirable to have the high temperature of stabilization
High-density slurry.Above example illustrates that emulsifying agent of oil-base mud of the invention and preparation method thereof can meet well depth increasing
Plus drillng operation requirement.
Claims (7)
1. a kind of emulsifying agent of oil-base mud, it is characterised in that counted with the gross mass of the emulsifying agent of the oil-base mud as 100%,
The composition of the emulsifying agent of the oil-base mud includes：The oleyl alcohol of 10wt%-50wt%, the compound A of 10wt%-50wt%,
The compound D, 5wt%- of the compound C, 5wt%-40wt% of the compound B, 5wt%-40wt% of 5wt%-30wt%
The glycerine and the fat oil less than 5wt% of the compound F, 1wt%-10wt% of the compound E, 5wt%-40wt% of 40wt%,
Wherein, total percentage composition that the emulsifying agent of the oil-base mud is respectively constituted is 100%；
The compound A is 1,3- dihydroxy-isopropyl (E) -12- hydroxyoctadecanoic -9- olefin(e) acid esters；
The compound B is (9E, 9'E)-N, N'- (urea diyl is double (ethyl -2,1- diyls)) double 12- hydroxyoctadecanoics -9- alkene
Acid amides；
The compound C is (E) -12- hydroxy-ns, double (2- ((the E) -12- hydroxyoctadecanoic -9- enoyl-s) ethyls) 18 of N-
Alkane -9- acrylamides；
The compound D is (Z) -4- (double (2- ((E) -12- hydroxyoctadecanoic -9- enoyl-s) ethyl) amino) -4- oxygen butyl- 2-
Olefin(e) acid；
The compound E is 1,3- dihydroxy isopropyl -2- base (Z) -4- (double (2- ((E) -12- hydroxyoctadecanoic -9- enoyl-s)
Ethyl) amino) -4- oxygen but-2-ene acid fat；
The compound F is N1, N1, N4, N4- tetra- (2- (the dilute amide groups of (E) -12- hydroxyoctadecanoics -9-) ethyl) maleic acid acyl
Amine.
2. the emulsifying agent of oil-base mud according to claim 1, it is characterised in that the composition of the emulsifying agent of the oil-base mud
Oleyl alcohol including 20wt%-30wt%, the compound B of the compound A, 10wt%-20wt% of 10wt%-30wt%.
3. the emulsifying agent of oil-base mud according to claim 1 and 2, it is characterised in that the emulsifying agent of the oil-base mud
Composition includes the compound E of the compound D, 5wt%-10wt% of the compound C, 5wt%-10wt% of 5wt%-10wt%,
The compound F of 5wt%-20wt%.
4. a kind of oil-base mud, it is characterised in that the oil-base mud includes base oil, carries stick, heavy weight additive, wetting agent, drop filter
Lose agent and emulsifying agent；
Wherein, the emulsifying agent is the emulsifying agent of the oil-base mud described in claim any one of 1-3.
5. oil-base mud according to claim 4, it is characterised in that counted with the gross mass of the oil-base mud as 100%, institute
The raw material composition for stating oil-base mud includes：The base oil of 50wt%-95wt%, 1wt%-5wt%'s carries stick, 20wt%-
The heavy weight additive of 70wt%, the fluid loss additive of 5wt%-10wt%, the emulsifying agent of 0.3wt%-3wt%, the original of the oil-base mud
The gross mass percentage sum for expecting composition is 100%.
6. the emulsifying agent of the oil-base mud described in any one of claim 1-3 is used to emulsify the oil-base mud of high-temperature high-density.
7. the preparation method of the emulsifying agent of the oil-base mud described in any one of claim 1-3, it is characterised in that the oil-base mud
The preparation method of emulsifying agent comprise the following steps：
Heating fat oil adds diethylenetriamines to 60 DEG C -100 DEG C under nitrogen purge；Stop nitrogen purging, keeping temperature
At 80 DEG C -120 DEG C；
1h-5h is reacted at 130 DEG C -170 DEG C；
150 DEG C of -170 DEG C of reaction 1h-3h are adjusted the temperature to, room temperature is cooled to；
Maleic anhydride is added, in 80 DEG C of -120 DEG C of reaction 0.5h-3h；Wherein, fat oil：Diethylenetriamine：Maleic anhydride
Mass ratio is 1-1.5:1:0.3-0.5；
Adjust the temperature to 140 DEG C of -160 DEG C of reaction 0.5h-3h；
190 DEG C of -210 DEG C of reaction 0.1h-3h are adjusted the temperature to, oleyl alcohol is added, the emulsifying agent of the oil-base mud is obtained.
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