CN105018059B - A kind of Water-In-Oil spotting fluid and its production method - Google Patents
A kind of Water-In-Oil spotting fluid and its production method Download PDFInfo
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- CN105018059B CN105018059B CN201510340061.7A CN201510340061A CN105018059B CN 105018059 B CN105018059 B CN 105018059B CN 201510340061 A CN201510340061 A CN 201510340061A CN 105018059 B CN105018059 B CN 105018059B
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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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
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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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
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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
- C09K2208/02—Spotting, i.e. using additives for releasing a stuck drill
Abstract
The present invention relates to a kind of Water-In-Oil spotting fluid and its production method, in turn include the following steps, (1) prepare raw material, 200 parts of water by following components and weight content；680 parts of diesel oil；10~20 parts of oleic acid；20~25 parts of white lime；20~30 parts of reverse wetting agent DTAB；Solid emulsifier SN 1：60~70 parts；Anti-sloughing agent FT 1：10~20 parts；Fast penetrant T：20~30 parts；20~65 parts of barium sulfate；(2) above-mentioned diesel oil is poured into high-speed stirred tank, above-mentioned solid emulsifier SN 1 is added under 20000rpm stirring condition to stir 15~20 minutes, then adding water and stirring 20~30 minutes makes profit fully emulsified, then oleic acid, white lime, anti-sloughing agent FT 1, reverse wetting agent, barium sulfate are sequentially added and is stirred, it is eventually adding fast penetrant T and stirs 30~40 minutes, obtains Water-In-Oil spotting fluid.
Description
Technical field
The present invention relates to a kind of Water-In-Oil spotting fluid, belong to oil and gas well drilling technical field, for petroleum gas
Occur to soak bit freezing position during bit freezing in drilling well.
Background technology
With going deep into for In Oil Field Exploration And Development work, for further enhancing efficiency by relying on tapping internal latent power, improve crude output, oil exploration to
Deeper more complicated field probing.Some highly difficult horizontal wells, High angle, the quantity of extended reach well are being passed year by year in recent years
Increase.Lock of tool drilling easily occurs for the influence due to a variety of causes in the drilling operation of these wells.The reason for causing bit freezing is more
Aspect, it is with the filter cake coefficient of friction resistance, drilling fluid density, the contact area of misoperation and drilling tool and the borehole wall and when contacting
Between wait have relation.Generally bit freezing is divided into according to the reason for bit freezing several：1）Key-seating sticking；2）Sand setting bit freezing；3）Well
Collapse bit freezing；4）Adhere to bit freezing；5）Differential sticking；6）Undergauge bit freezing；7）Junk bit freezing；8）Sand bridging etc..Water-In-Oil spotting fluid
It is the method better for handling pressure difference and adhering to bit freezing.
For different lock of tool drilling, there is the solution method of many types, have for spotting fluid following several：1)
Bubble oil；2) oil-in-water type spotting fluid；3）Inorganic salts spotting fluid；4）Acid etc. is steeped, these methods are referred to as spotting fluid method.They are places
Manage the simple effective method of all kinds bit freezing.Exactly spotting fluid is pumped into well, it is returned to stuck point position and soaks, subtract
The small filter cake coefficient of friction resistance, Bian Pao sides activity drilling tool and a kind of method of unfreezing.But because above spotting fluid cuts both ways, deposit
In certain limitation.Bubble oil, due to oil relatively it is light easily on alter, it is impossible to it is relative that effectively immersion, unfreezing effect is produced to stuck point
Low, oil can produce destruction to mud cake, and unfavorable wellbore stability, dealing with improperly can cause complicated set complicated.Oil-in-water spotting fluid is imitated
The relative bubble oil of fruit is very different, but cost is low, is not easy to pollute environment.Inorganic salts spotting fluid may be only available for DWSW liquid
System.Bubble acid is only used for the bit freezing of carbonate formation, and acid solution has corrosiveness to drilling tool.Needed in practical work a kind of new
The spotting fluid of type replaces above several types.
The content of the invention
The primary and foremost purpose of the present invention is, overcomes problems of the prior art, there is provided a kind of Water-In-Oil spotting fluid, property
Can be stable, unfreezing effect is good.
To solve above technical problem, a kind of Water-In-Oil spotting fluid of the invention, the raw material group of the Water-In-Oil spotting fluid
Divide and weight content is as follows, water：200 parts；Diesel oil：680 parts；Oleic acid：10~20 parts；20~25 parts of white lime；Reverse wetting agent
DTAB：20~30 parts；Solid emulsifier SN-1：60~70 parts；Anti-sloughing agent FT-1：10~20 parts；It hurry up
Fast penetrant t：20~30 parts；Heavy weight additive barium sulfate：20~65 parts.
Relative to prior art, the present invention achieves following beneficial effect：It is configuration spotting fluid 1. diesel oil is as continuous phase
Base oil, 5#, 0#, -10# diesel oil, about 180~370 DEG C of boiling spread is inflammable volatile, not soluble in water；Oleic acid is a kind of single
Unsaturated Omega-9 aliphatic acid, chemical formula C18H34O2, oil-water emulsion can be promoted, form stable emulsion colloid；White lime is hydrogen
Calcium oxide white powder, the synergy for promoting oil-water emulsion can be also functioned to the pH value of regulation system；Reverse wetting agent 12
Alkyl trimethyl ammonium bromide is anionic surfactant, thus it is possible to vary barite surface nature makes it be changed over by hydrophily
Lipophile, to form equal colloid；Solid emulsifier SN-1 is a kind of powdered zwitterionic surfactant and organic
A kind of molecular structure that soil is formed by chemical modification, both containing lipophilic group, also containing hydrophilic radical, can promote oil-water emulsion, shape
Into stable emulsion colloid, and the ability for the suspension barite for improving spotting fluid can be adjusted；Anti-sloughing agent FT-1 is that one kind passes through sulphur
Change modified asphalt anti-collapse agent, contain-SO in molecule3And colloidal bitumen, the suspendability of spotting fluid can be improved and play stabilization
The effect of the borehole wall；Heavy weight additive barium sulfate is that barite can adjust spotting fluid density and be allowed to approach with the density of drilling fluid, slightly lower
In former drilling fluid 0.01-0.03g/cm3, if density is too low, spotting fluid will on wear, it is impossible to effectively immersion is produced to stuck point,
So as to influence unfreezing effect；The chemical name of fast penetrant T is disecoctylmaleate sodium sulfonate, belongs to anionic surface
Activating agent, its effect is to ensure that spotting fluid is penetrated between drill string and the borehole wall, cracks mud cake dehydration, transmits pressure and eliminates
Pressure difference, so as to release differential sticking, reach the purpose of unfreezing.2. mutual compatibility between the spotting fluid each component of the present invention
It is good, a stable colloid is together form, there is good sedimentation stability, unfreezing effect is good.3. the spotting fluid of the present invention
Heat-resisting property is good, and emulsion-breaking voltage is high, and the density before and after spotting fluid high temperature ageing does not almost change, and suspension stability is good.
As the preferred scheme of the present invention, the raw material components and weight content of the Water-In-Oil spotting fluid are as follows, water：200
Part；Diesel oil：680 parts；Oleic acid：10 parts；White lime：20 parts；Reverse wetting agent DTAB：20 parts；Solid
Emulsifying agent SN-1：60 parts；Anti-sloughing agent FT-1：10 parts；Fast penetrant T：20 parts；Heavy weight additive barium sulfate：20 parts.
As the preferred scheme of the present invention, the raw material components and weight content of the Water-In-Oil spotting fluid are as follows, water：200
Part；Diesel oil：680 parts；Oleic acid：15 parts；White lime：22 parts；Reverse wetting agent DTAB：25 parts；Solid
Emulsifying agent SN-1：65 parts；Anti-sloughing agent FT-1：15 parts；Fast penetrant T：25 parts；Heavy weight additive barium sulfate：40 parts.
As the preferred scheme of the present invention, the raw material components and weight content of the Water-In-Oil spotting fluid are as follows, water：200
Part；Diesel oil：680 parts；Oleic acid：20 parts；White lime：25 parts；Reverse wetting agent DTAB：30 parts；Solid
Emulsifying agent SN-1：70 parts；Anti-sloughing agent FT-1：20 parts；Fast penetrant T：30 parts；Heavy weight additive barium sulfate：65 parts.
It is another object of the present invention to overcome problems of the prior art, there is provided a kind of Water-In-Oil spotting fluid
Production method, the Water-In-Oil spotting fluid stable performance produced, unfreezing effect is good.
To solve above technical problem, a kind of production method of Water-In-Oil spotting fluid of the invention, include following step successively
Suddenly, (1) raw material, water are prepared by following components and weight content：200 parts；Diesel oil：680 parts；Oleic acid：10~20 parts；White lime 20
~25 parts；Reverse wetting agent DTAB：20~30 parts；Solid emulsifier SN-1：60~70 parts；Anti-sloughing agent
FT-1：10~20 parts；Fast penetrant T：20~30 parts；Heavy weight additive barium sulfate：20~65 parts；(2) above-mentioned diesel oil is poured at a high speed
In agitator tank, above-mentioned solid emulsifier SN-1 is added under 20000rpm stirring condition, and continue stirring 15~20 minutes；⑶
Above-mentioned water is added into the high-speed stirred tank, and high-speed stirred makes profit fully emulsified in 20~30 minutes；(4) to the height
Above-mentioned oleic acid is continuously added in fast agitator tank, high-speed stirred further promotes emulsification in 15~20 minutes；(5) to the high-speed stirred
Above-mentioned white lime, high-speed stirred 3~5 minutes are continuously added in tank；(6) anti-sloughing agent FT- is continuously added into the high-speed stirred tank
1, high-speed stirred 15~20 minutes；(7) reverse wetting agent trimethyl bromination is continuously added into the high-speed stirred tank
Ammonium, high-speed stirred 10~15 minutes；(8) heavy weight additive barium sulfate, 5~8 points of high-speed stirred are continuously added into the high-speed stirred tank
Clock；(9) above-mentioned fast penetrant T is added in the most backward high-speed stirred tank, high-speed stirred 30~40 minutes, obtain Water-In-Oil
Spotting fluid.
Relative to prior art, the present invention achieves following beneficial effect：The present invention is first by diesel oil and solid emulsifier SN-
1 stirs, and then plus water high-speed stirred can make profit fully emulsified, be subsequently added into oleic acid and further promote to emulsify, then add
Enter white lime regulation pH value, also function to the synergy for promoting oil-water emulsion, add anti-sloughing agent FT-1, reverse wetting agent, so
Heavy weight additive is added afterwards to be adjusted to approach with former drilling fluid density, is eventually adding fast penetrant T.The addition sequence of each component can not
It is reverse, and various inorganic agents are added while stirring, due to solid concentration rise viscosity increase after exacerbation, it is possible that in tank
Be fixed up phenomenon, and the excessive velocities solid concentration that mainly various inorganic agents add, which rises, to be caused, and adds quickly penetrating agent in time,
It can recover after being sufficiently stirred.Mutual compatibility is good between the spotting fluid each component being fabricated in the present inventive method, altogether
With foring a stable colloid, there is good sedimentation stability, unfreezing effect is good.Spotting fluid heat-resisting property is good, breaks
Newborn voltage is high, and the density before and after spotting fluid high temperature ageing does not almost change, and suspension stability is good.
As the preferred scheme of the present invention, the raw material components and weight content are as follows, water：200 parts；Diesel oil：680 parts；
Oleic acid：10 parts；White lime：20 parts；Reverse wetting agent DTAB：20 parts；Solid emulsifier SN-1：60
Part；Anti-sloughing agent FT-1：10 parts；Fast penetrant T：20 parts；Heavy weight additive barium sulfate：20 parts.
As the preferred scheme of the present invention, the raw material components and weight content are as follows, water：200 parts；Diesel oil：680 parts；
Oleic acid：15 parts；White lime：22 parts；Reverse wetting agent DTAB：25 parts；Solid emulsifier SN-1：65
Part；Anti-sloughing agent FT-1：15 parts；Fast penetrant T：25 parts；Heavy weight additive barium sulfate：40 parts.
As the preferred scheme of the present invention, the raw material components and weight content are as follows, water：200 parts；Diesel oil：680 parts；
Oleic acid：20 parts；White lime：25 parts；Reverse wetting agent DTAB：30 parts；Solid emulsifier SN-1： 70
Part；Anti-sloughing agent FT-1：20 parts；Fast penetrant T：30 parts；Heavy weight additive barium sulfate：65 parts.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description, accompanying drawing only provide with reference to
Illustrate to use, be not used to the limitation present invention.
Fig. 1 is the mud cake that drilling fluid is put into that the min of press filtration 30 is formed under 0.75 MPa in middle pressure filter press cup.
Fig. 2 is the mud cake after being soaked 45 minutes with the spotting fluid of the present invention.
Fig. 3 is the mud cake after being soaked 90 minutes with the spotting fluid of the present invention.
Embodiment
Embodiment one
The production method of the Water-In-Oil spotting fluid of the present invention, in turn includes the following steps, (1) contains by following components and weight
Amount prepares raw material, water：200 parts；Diesel oil：680 parts；Oleic acid：10 parts；White lime：20 parts；Reverse wetting agent trimethyl
Ammonium bromide：20 parts；Solid emulsifier SN-1：60 parts；Anti-sloughing agent FT-1：10 parts；Fast penetrant T：20 parts；Heavy weight additive sulfuric acid
Barium：20 parts；(2) above-mentioned diesel oil is poured into high-speed stirred tank, above-mentioned solid emulsifier is added under 20000rpm stirring condition
SN-1, and continue stirring 15 minutes；(3) above-mentioned water is added into the high-speed stirred tank, and high-speed stirred makes profit in 20 minutes
It is fully emulsified；(4) above-mentioned oleic acid is continuously added into the high-speed stirred tank, and high-speed stirred further promotes emulsification in 15 minutes；⑸
Above-mentioned white lime, high-speed stirred 3 minutes are continuously added into the high-speed stirred tank；(6) continue to add into the high-speed stirred tank
Enter anti-sloughing agent FT-1, high-speed stirred 15 minutes；(7) reverse wetting agent dodecyl three is continuously added into the high-speed stirred tank
Methyl bromide ammonium, high-speed stirred 10 minutes；(8) heavy weight additive barium sulfate, high-speed stirred 5 are continuously added into the high-speed stirred tank
Minute；(9) above-mentioned fast penetrant T is added in the most backward high-speed stirred tank, high-speed stirred 10 minutes, obtain Water-In-Oil solution
Card liquid.
Embodiment two
The production method of the Water-In-Oil spotting fluid of the present invention, in turn includes the following steps, (1) contains by following components and weight
Amount prepares raw material, water：200 parts；Diesel oil：680 parts；Oleic acid：15 parts；White lime：22 parts；Reverse wetting agent trimethyl
Ammonium bromide：25 parts；Solid emulsifier SN-1：65 parts；Anti-sloughing agent FT-1：15 parts；Fast penetrant T：25 parts；Heavy weight additive sulfuric acid
Barium：40 parts；(2) above-mentioned diesel oil is poured into high-speed stirred tank, above-mentioned solid emulsifier is added under 20000rpm stirring condition
SN-1, and continue stirring 18 minutes；(3) above-mentioned water is added into the high-speed stirred tank, and high-speed stirred makes profit in 25 minutes
It is fully emulsified；(4) above-mentioned oleic acid is continuously added into the high-speed stirred tank, and high-speed stirred further promotes emulsification in 18 minutes；⑸
Above-mentioned white lime, high-speed stirred 4 minutes are continuously added into the high-speed stirred tank；(6) continue to add into the high-speed stirred tank
Enter anti-sloughing agent FT-1, high-speed stirred 18 minutes；(7) reverse wetting agent dodecyl three is continuously added into the high-speed stirred tank
Methyl bromide ammonium, high-speed stirred 12 minutes；(8) heavy weight additive barium sulfate, high-speed stirred 6 are continuously added into the high-speed stirred tank
Minute；(9) above-mentioned fast penetrant T is added in the most backward high-speed stirred tank, high-speed stirred 13 minutes, obtain Water-In-Oil solution
Card liquid.
Embodiment three
The production method of the Water-In-Oil spotting fluid of the present invention, in turn includes the following steps, (1) contains by following components and weight
Amount prepares raw material, water：200 parts；Diesel oil：680 parts；Oleic acid：20 parts；White lime：25 parts；Reverse wetting agent trimethyl
Ammonium bromide：30 parts；Solid emulsifier SN-1：70 parts；Anti-sloughing agent FT-1：20 parts；Fast penetrant T：30 parts；Heavy weight additive sulfuric acid
Barium：65 parts；(2) above-mentioned diesel oil is poured into high-speed stirred tank, above-mentioned solid emulsifier is added under 20000rpm stirring condition
SN-1, and continue stirring 20 minutes；(3) above-mentioned water is added into the high-speed stirred tank, and high-speed stirred makes profit in 30 minutes
It is fully emulsified；(4) above-mentioned oleic acid is continuously added into the high-speed stirred tank, and high-speed stirred further promotes emulsification in 20 minutes；⑸
Above-mentioned white lime, high-speed stirred 5 minutes are continuously added into the high-speed stirred tank；(6) continue to add into the high-speed stirred tank
Enter anti-sloughing agent FT-1, high-speed stirred 20 minutes；(7) reverse wetting agent dodecyl three is continuously added into the high-speed stirred tank
Methyl bromide ammonium, high-speed stirred 15 minutes；(8) heavy weight additive barium sulfate, high-speed stirred 8 are continuously added into the high-speed stirred tank
Minute；(9) above-mentioned fast penetrant T is added in the most backward high-speed stirred tank, high-speed stirred 15 minutes, obtain Water-In-Oil solution
Card liquid.
Performance Experimental comparison is carried out to the formula of the present invention, wherein as shown in table 1 to the proportioning test result of emulsifying agent.
Table 1
In table 1,1# components by weight percent：10 parts of 200 parts of water, 680 parts of diesel oil and oleic acid.2# components by weight percent：200 parts of water, diesel oil
680 parts and solid emulsifier SN-1：30 parts.3# components by weight percent：200 parts of water, 680 parts of diesel oil, 10 parts of oleic acid and solid emulsifier
SN-1：60 parts.3# components by weight percent is identical with the proportioning of one corresponding composition of the embodiment of the present invention, and 1# is matched somebody with somebody using oleic acid list, and 2# is used
Solid emulsifier SN-1 is mono- to be matched somebody with somebody.As it can be seen from table 1 the proportioning of embodiment one its apparent viscosity, plastic viscosity, yield value, in
Pressure dehydration, emulsion-breaking voltage and emulsion stability situation are superior to 1# and 2#.
Experimental comparison is carried out to the suspendability of inventive formulation, experimental result is as shown in table 2.
Table 2
In table 2,4# components by weight percent：200 parts of water, 680 parts of diesel oil, 10 parts of oleic acid, solid emulsifier SN-1：25 parts and sulfuric acid
Barium：50 parts.
5# components by weight percent：200 parts of water, 680 parts of diesel oil, 10 parts of oleic acid, solid emulsifier SN-1：50 parts, anti-sloughing agent FT-1：
20 parts and barium sulfate：60 parts.
6# components by weight percent：200 parts of water, 680 parts of diesel oil, 20 parts of oleic acid, solid emulsifier SN-1：70 parts, anti-sloughing agent FT-1：
20 parts and barium sulfate：65 parts.
7# components by weight percent：200 parts of water, 680 parts of diesel oil, 20 parts of oleic acid, 30 parts of DTAB, solid milk
Agent SN-1：70 parts, anti-sloughing agent FT-1：20 parts and barium sulfate：65 parts.
8# components by weight percent：200 parts of water, 680 parts of diesel oil, 20 parts of oleic acid, 25 parts of white lime, DTAB
30 parts, solid emulsifier SN-1：70 parts, anti-sloughing agent FT-1：20 parts and barium sulfate：65 parts.
9# components by weight percent：200 parts of water, 680 parts of diesel oil, 20 parts of oleic acid, 25 parts of white lime, DTAB
30 parts, solid emulsifier SN-1：70 parts, anti-sloughing agent FT-1：20 parts, fast penetrant T：30 parts and barium sulfate：65 parts.
For 9# components using the formula of embodiments of the invention three, 8# eliminates fast penetrant T, 7# phases relative to 9#
White lime is eliminated for 8#, 6# eliminates DTAB relative to 7#, and 5# reduces solid relative to 6#
Emulsifying agent SN-1 and anti-sloughing agent FT-1 content, 4# eliminate anti-sloughing agent FT-1 relative to 5# and reduce solid emulsifier SN-1
Content.
Data from table 2, in the case of oil-water ratio identical, with solid emulsifier SN-1 and anti-sloughing agent FT-1
The increase of dosage, the suspendability of system are gradually strengthened, and are also just said on the spotting fluid as quiescent time extends, configured
Lower layer density change is less and less, and the settlement issues of barite are improved, most obvious particularly after 7# formulas, while body
The emulsion-breaking voltage of system is also to gradually rise, and illustrates the stability of system and is also strengthening, but with the addition of white lime, system viscosity
Rise, after fast penetrant T is added, the rheological characteristic of system is recovered, and formula property indices of the invention are substantially better than
4# to 8# be formulated, and the present invention formula stand 15 minutes and stand 1 hour after density do not change.
The heat-resisting property of the present invention is tested, the rheological characteristic before and after 120 DEG C of aging 16h of test spotting fluid, as a result such as
Shown in table 3.
Table 3
Wherein 11# formulas are using the same formula with the embodiment of the present invention two；10# drops the content of oil relative to 11#
The weight ratio of as little as oil and water is 2:1, remaining component is identical.It can be seen that performance before and after the spotting fluid aging of 10# recipe configurations
Change is too big, and emulsion-breaking voltage illustrates that the stability of system is bad also below 400v, and is 11# formulas by the spotting fluid of the present invention
Rheological characteristic change before and after aging is little, illustrates that the spotting fluid temperature resistance of the present invention is good, emulsion-breaking voltage is all higher than 600v（It is conventional
It is required that emulsion-breaking voltage is more than 400v）, and the density before and after the spotting fluid high temperature ageing of the present invention does not almost change, static 24
Hour without diesel oil separate out, system it is suspending stabilized very well.
Unfreezing effect experiment is carried out to the spotting fluid of the present invention, drilling fluid is put into middle pressure filter press cup, 0.75
The min of press filtration 30 under MPa pressure, the smooth densification of mud cake of formation, be bonded with filter paper it is closer, as shown in Figure 1.
The drilling fluid in pressure filter press cup is poured out, then the decoder 3.5ml of the embodiment of the present invention two is fallen to press in people and lost
In water instrument cup, 0.75 MPa of ready-made mud cake pressurization, press filtration 45 minutes just now are put into, takes destruction of the observation decoder to mud cake apart
Degree, now mud cake evacuation, crackle networking is glossy wet, departs from paper, as shown in Figure 2.
Above-mentioned experiment is repeated again, mud cake 0.75 MPa of pressurization, press filtration 90 minutes, takes observation decoder apart and mud cake is broken
Bad degree, now mud cake more evacuate, crackle networking is glossy wet, with paper depart from, as shown in Figure 3.The time of mud cake immersion is longer
Mud cake destroys more severe, can be come off completely from filter paper, illustrate its unfreezing positive effect.
Solid emulsifier SN-1 can use the product of Shengli Oil Field blogger's Mud Technology Co., Ltd；Anti-sloughing agent
FT-1 can use the product of the Chemical Co., Ltd. of Xinxiang City, Henan Province the 7th；Fast penetrant T can use Nantong Hai Jiangization
The product of work Science and Technology Ltd.；DTAB can use Beijing remittance sunrise chemical products to have as wetting agent
The product of limit company.
It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model
Enclose.In addition to the implementation, the present invention can also have other embodiment.All skills formed using equivalent substitution or equivalent transformation
Art scheme, all falls within the protection domain of application claims.Technical characteristic of the invention without description can be by or using now
There is technology realization, will not be repeated here.
Claims (2)
1. a kind of production method of Water-In-Oil spotting fluid, it is characterised in that in turn include the following steps, (1) by following components and again
Measure content and prepare raw material, water：200 parts；Diesel oil：680 parts；Oleic acid：15 parts；White lime：22 parts；Reverse wetting agent dodecyl three
Methyl bromide ammonium：25 parts；Solid emulsifier SN-1：65 parts；Anti-sloughing agent FT-1：15 parts；Fast penetrant T：25 parts；Heavy weight additive
Barium sulfate：40 parts；(2) above-mentioned diesel oil is poured into high-speed stirred tank, above-mentioned solid milk is added under 20000rpm stirring condition
Agent SN-1, and continue stirring 15~20 minutes；(3) above-mentioned water added into the high-speed stirred tank, and high-speed stirred 20~
Make profit fully emulsified within 30 minutes；(4) above-mentioned oleic acid, high-speed stirred 15~20 minutes are continuously added into the high-speed stirred tank
Further promote emulsification；(5) above-mentioned white lime, high-speed stirred 3~5 minutes are continuously added into the high-speed stirred tank；(6) to institute
State and anti-sloughing agent FT-1 is continuously added in high-speed stirred tank, high-speed stirred 15~20 minutes；(7) continue into the high-speed stirred tank
Add reverse wetting agent DTAB, high-speed stirred 10~15 minutes；(8) relayed to the high-speed stirred tank
It is continuous to add heavy weight additive barium sulfate, high-speed stirred 5~8 minutes；(9) above-mentioned rapid osmotic is added in the most backward high-speed stirred tank
Agent T, high-speed stirred 30~40 minutes, obtains Water-In-Oil spotting fluid.
2. the production method of Water-In-Oil spotting fluid according to claim 1, it is characterised in that the diesel oil is No. 5, No. 0
Or-No. 10 diesel oil.
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| CN111927397A (en) * | 2020-08-31 | 2020-11-13 | 中国石油集团渤海钻探工程有限公司 | Method for stuck freeing of stuck drill by using paste-salt layer double-isolation liquid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101638574A (en) * | 2009-08-25 | 2010-02-03 | 谢军 | Acid-in-oil stuck freeing fluid and production method and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101638574A (en) * | 2009-08-25 | 2010-02-03 | 谢军 | Acid-in-oil stuck freeing fluid and production method and use method thereof |
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| SN―1固体乳化剂的室内研究及现场应用;王富华等;《钻井液与完井液》;19950815;第12卷(第04期);16-19 * |
| 油包水解卡液研究及在瓦6平3井中的应用;玄美玲等;《石油和化工设备》;20130615;第6卷;52-54 * |
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