CN105754562A - Tackifier and shear strength improving agent for drilling fluid for extended reach wells as well as preparation method and application thereof - Google Patents
Tackifier and shear strength improving agent for drilling fluid for extended reach wells as well as preparation method and application thereof Download PDFInfo
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- CN105754562A CN105754562A CN201610170102.7A CN201610170102A CN105754562A CN 105754562 A CN105754562 A CN 105754562A CN 201610170102 A CN201610170102 A CN 201610170102A CN 105754562 A CN105754562 A CN 105754562A
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- drilling fluid
- extended reach
- cutting agent
- solution
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/06—Clay-free compositions
- C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
Abstract
The invention provides a tackifier and shear strength improving agent for a drilling fluid for extended reach wells as well as a preparation method and an application thereof. In terms of total 100 parts by weight of the tackifier and shear strength improving agent for the drilling fluid for the extended reach wells, the tackifier and shear strength improving agent for the drilling fluid for the extended reach wells is prepared from 45-55 parts by weight of acrylamide, 25-35 parts by weight of acrylic acid, 30-60 parts by weight of a cationic monomer solution, 4-10 parts by weight of a sodium bisulfite solution with the mass concentration of 5% and 4-10 parts by weight of an ammonium persulfate solution with the mass concentration of 5%. The invention further provides the preparation method and the application of the tackifier and shear strength improving agent for the drilling fluid for the extended reach wells. The tackifier and shear strength improving agent for the drilling fluid for the extended reach wells can effectively improve the apparent viscosity and the dynamic shear force of the drilling fluid for the extended reach wells and reduce drilling cuttings and barite settlement.
Description
Technical field
The present invention relates to a kind of extracting and cutting agent and preparation method thereof, carry particularly to the thickening of a kind of extended reach well drilling fluid and cutting
Agent and preparation method thereof, belongs to petroleum material technical field.
Background technology
Horizontal well, extended reach well drilling technology, as one of modern drilling technology developing direction, are also that technical problem compares
One of field concentrated.Horizontal well, the extended reach well landwaste problem of carrying are domestic urgently to be resolved hurrily and fail to solve very well always
Technical barrier certainly, directly affects drilling well, electrical measurement, setting of casing, being normally carried out of well cementing operation.The most timely and effective
Carry out landwaste in well, eliminate cutting bed, keep well cleaning, be that can extended reach well the key of smooth construction.
Extended reach well water-base drilling fluid apparent viscosity and shear force are one of crucial rheological characteristic parameters determining its performance, directly
Have influence on and take rock effect, barite sedimentation, equivalent circulating density, surge pressure and swabbing pressure etc., and then have influence on
Extended reach well drilling well is normally crept into.Research shows, extended reach well water-base drilling fluid has suitable viscosity and shear force is special
The gel initial being high contributes to reducing the probability that cutting bed is formed.
Therefore, suitable water-base drilling fluid thickening extracting and cutting agent is developed for raising extended reach well drilling efficiency, reduction drilling well
Integrated cost, the development efficiency of raising particular reservoir have a very important role.
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of extended reach well drilling fluid thickening extracting and cutting agent
And preparation method thereof, this extracting and cutting agent can be effectively improved extended reach well drilling fluid apparent viscosity, yield value and ratio of dynamic shear force/yield value to plastic viscosity, can
Effectively alleviate drilling cuttings and barite settlement action.
In order to realize above-mentioned technical purpose, the invention provides a kind of extended reach well drilling fluid thickening extracting and cutting agent, big with this
The gross weight of displacement well drilling fluid thickening extracting and cutting agent is 100 weight portion meters, this extended reach well drilling fluid thickening extracting and cutting agent bag
Include the acrylamide of 45 weight portion-55 weight portions, the acrylic acid of 25 weight portion-35 weight portions, 30 weight portion-60 weights
Amount the cation mono liquid solution of part, the sodium sulfite solution that mass concentration is 5% of 4 weight portion-10 weight portions, 4
The ammonium persulfate solution that mass concentration is 5% of weight portion-10 weight portion.
In the extended reach well drilling fluid thickening extracting and cutting agent that the present invention provides, it is preferable that the cation mono liquid solution of employing is
The solution synthesized by vinyl chloride and trimethylamine solution.
In the extended reach well drilling fluid thickening extracting and cutting agent that the present invention provides, it is preferable that carry with extended reach well drilling fluid thickening
The gross weight cutting agent is 100 weight portion meters, and the cation mono liquid solution of employing is by the chlorine of 15 weight portion-30 weight portions
The solution of the trimethylamine solution synthesis of ethylene and 15 weight portion-30 weight portions.
In the extended reach well drilling fluid thickening extracting and cutting agent that the present invention provides, it is preferable that the quality of the trimethylamine solution of employing
Concentration is 30%.
The extended reach well drilling fluid thickening extracting and cutting agent of the present invention be applicable to fresh water, saline, compound saline, fresh water-based slurry and
The thickening of brine mud and the raising of shear force.
The extended reach well drilling fluid thickening extracting and cutting agent of the present invention is specifically for fresh water, saline, compound saline, fresh water-based slurry
With the thickening of brine mud and when improving shear force, carry out according to the mode of the conventional thickening extracting and cutting agent in this area.
Present invention also offers a kind of extended reach well drilling fluid thickening extracting and cutting agent preparation method, this preparation method include with
Lower step:
Under 60 DEG C of-70 DEG C of water-baths, acrylamide, acrylic acid, cation mono liquid solution being mixed with water, constant temperature stirs
Mix, logical nitrogen 15min-25min；Wherein, the extended reach well drilling fluid thickening extracting and cutting agent of every 100 weight portions adds 350
The water of weight portion-400 weight portion；
Adding sodium sulfite solution and ammonium persulfate solution, wherein, sodium sulfite solution and ammonium persulfate solution divide
Three additions, the most each addition 1/3, respectively add 1/3 after stirring 15min-25min, each after stirring 25min-30min
Add remaining 1/3 (respectively to add 1/3 after needing exist for explanation stirring 15min-25min, stir 25min-30min
Rear each addition remaining 1/3 is all to add first part 1/3 as time zero)；
Stirring 70min-90min, obtains thickness glue reactant, and above step is all carried out under 60 DEG C of-70 DEG C of water-baths；
Through washing, be dried, pulverize, sieving, obtain described extended reach well drilling fluid thickening extracting and cutting agent.
The present invention provide extended reach well drilling fluid thickening extracting and cutting agent preparation method in, it is preferable that the sun of employing from
Sub-monomer solution is through the following steps that prepare:
Vinyl chloride and trimethylamine solution are stirred 1.5h-2h, obtains described cation mono liquid solution.
In the preparation method of the extended reach well drilling fluid thickening extracting and cutting agent of present invention offer, it is preferable that drying steps exists
Vacuum environment is carried out.
In the preparation method of the extended reach well drilling fluid thickening extracting and cutting agent of present invention offer, it is preferable that drying steps is
2h-3h it is dried at 70 DEG C-90 DEG C.
In the preparation method of the extended reach well drilling fluid thickening extracting and cutting agent of present invention offer, it is preferable that select when sieving
The mesh screen of 60 mesh.
The preparation method of the extended reach well drilling fluid thickening extracting and cutting agent that the present invention provides, specifically includes following steps:
By sodium sulfite and the Ammonium persulfate. difference of 0.2 weight portion-0.5 weight portion of 0.2 weight portion-0.5 weight portion
Add in 100mL beaker, in beaker, add the distilled water of 4 weight portion-10 weight portions, stirring and dissolving, system respectively
Mass concentration be 5% sodium sulfite solution and mass concentration be the ammonium persulfate solution of 5%；
The trimethylamine solution of the vinyl chloride of 15 weight portion-30 weight portions, 15 weight portion-30 weight portions is added in beaker,
Stirring 2h, prepares cation mono liquid solution；
Acrylamide, acrylic acid and cation mono liquid solution being mixed with water, heating in water bath maintains the temperature at 60 DEG C-70
DEG C constant temperature stirring and dissolving；Wherein, the extended reach well drilling fluid thickening extracting and cutting agent of every 100 weight portions adds 350 weight portions
The water of-400 weight portions；
Constant temperature leads to nitrogen 15min-25min, to drive away the oxygen in reactant；
1/3rd of sodium sulfite solution and ammonium persulfate solution it are separately added into, respectively instead under constant temperature stirring condition
Answer 15min-25min, reaction 25min-30min after add remaining two part 1/3rd (reaction 15min-25min,
Reaction 25min-30min is all to add first part 1/3 as time zero)；
Continue constant temperature stirring reaction 70min-90min, prepare thickness glue reactant；
Thickness glue reactant is cooled to room temperature, with acetone precipitation, washing for several times, removes unreacted and obtain monomer,
To white solid；
Vacuum drying oven is dried 2h-3h hour at 70 DEG C-90 DEG C, pulverizes, cross 60 mesh sieves, obtain white powder
Obtain product and be described extended reach well drilling fluid thickening extracting and cutting agent.
The extended reach well drilling fluid thickening extracting and cutting agent of the present invention be applicable to fresh water, saline, compound saline, fresh water-based slurry and
Brine mud.
The extended reach well drilling fluid thickening extracting and cutting agent of the present invention can be effectively improved extended reach well drilling fluid apparent viscosity, move
Shear force and ratio of dynamic shear force/yield value to plastic viscosity, alleviate drilling cuttings bed and formed and barite sedimentation, normally creep into offer for extended reach well drilling and support.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and beneficial effect are more clearly understood from, the existing skill to the present invention
Art scheme carries out described further below, but it is not intended that to the present invention can the restriction of practical range.
Embodiment 1
Present embodiments provide extended reach well drilling fluid thickening extracting and cutting agent, with this extended reach well drilling fluid thickening extracting and cutting agent
Gross weight is 100 weight portion meters, this extended reach well drilling fluid thickening extracting and cutting agent include 45 weight portions acrylamide,
The acrylic acid of 25 weight portions, 30 weight portion cation mono liquid solutions, the sulfurous acid that mass concentration is 5% of 4 weight portions
Hydrogen sodium solution, the ammonium persulfate solution that mass concentration is 5% of 4 weight portions.
The present embodiment additionally provides the preparation method of above-mentioned extended reach well drilling fluid thickening extracting and cutting agent, specifically includes following step
Rapid:
0.3 weight portion sodium sulfite and 0.3 weight portion Ammonium persulfate. are separately added in beaker, respectively toward in beaker
Adding the distilled water of 6 weight portions, dissolve under magnetic stirring apparatus effect, prepared mass concentration is the bisulfite of 5%
Sodium solution and mass concentration are the ammonium persulfate solution of 5%；
20 weight part of vinyl chloride, 20 weight portion trimethylamine solutions are added in beakers, magnetic agitation 2h, prepare sun from
Sub-monomer solution；
Acrylamide, acrylic acid, cation mono liquid solution it is sequentially added into equipped with stirring, thermometer, nitrogen conduit
In four-hole boiling flask, being subsequently adding 350 weight portion-400 weight portion distilled water, heating in water bath maintains the temperature at 60 DEG C-70
DEG C constant temperature stirring and dissolving；
Constant temperature leads to nitrogen 25 minutes, drives away the oxygen in reactant；
It is separately added into 1/3rd of sodium sulfite solution and ammonium persulfate solution under constant temperature stirring condition, stirs 25
Minute time add 1/3rd, add residue 1/3rd (stirring 25 minutes here and stirring when stir 30 minutes
30 minutes all to add the sodium sulfite solution of first part 1/3rd and ammonium persulfate solution as time zero)；
Continue constant temperature stirring reaction 90 minutes, prepare thickness glue reactant；
Thickness glue reactant is cooled to room temperature, with acetone precipitation, washing for several times, removes unreacted monomer,
To white solid, it is dried 2 hours at 75 DEG C in vacuum drying oven, pulverizes, cross 60 mesh sieves, obtain white powder
Product, is above-mentioned extended reach well drilling fluid thickening extracting and cutting agent.
Prepare 3 kinds of base slurries, be respectively as follows:
1#: fresh water-based is starched: 2wt% bentonite+0.2wt%Na2CO3+ 2wt%SPNH (walchowite)+0.5wt%
High-temperature starch+3wt% polymeric alcohol+3wt% lubricant；
2#: brine mud: formula 1#+4wt%NaCl；
3#: increase the weight of base slurry: formula 1#+ barite (bores density 1.4g/cm3)。
In above formula, bentonite is drilling fluid bentonite, meets oil and gas industry standard SY/T
5060-1993；SPNH is a kind of drilling fluid heat resisting fluid loss reducing agent, Kunming Jin Sida Chemical Co., Ltd. product；
Barite is drilling fluid barite, and it is mainly composed of BaSO4, density is more than 4.2g/cm3；High-temperature starch is one
Planting drilling fluid salt resistant filter loss reduction agent, lubricant is a kind of lubricant for drilling fluids, and two kinds of products are collected by CNPC
Drilling engineering Institute for Research and Technology of group provides.
The above-mentioned extended reach well drilling fluid of the present embodiment being separately added into 0wt%, 0.5wt% in above-mentioned 3 kinds of bases slurry increases
Viscous extracting and cutting agent, high-speed stirred 20min, seal aging 24 hours, load in ageing can and roll aging 16h in 100 DEG C,
Obtain 3 kinds of samples.
Above-mentioned 3 kinds of samples are carried out performance measurement: according to " GB/T 16783-1997 water-base drilling fluid on-the-spot test journey
Sequence " measure rheological characteristic and consider the property lost.Test result is as shown in table 1.
Table 1
As can be seen from Table 1, the extended reach well drilling fluid thickening extracting and cutting agent of the present embodiment to fresh water slurry, salt slurries and adds
After heavily slurry processes, the shear force of drilling fluid can be significantly improved, improve Improving Mud Carrying Capacity, and to API and height
Temperature high pressure filtration property has no significant effect, and compatibility is preferable.
Embodiment 2
Present embodiments provide extended reach well drilling fluid thickening extracting and cutting agent, with this extended reach well drilling fluid thickening extracting and cutting agent
Gross weight is 100 parts of meters, and this extended reach well drilling fluid thickening extracting and cutting agent includes the acrylamide of 50 weight portions, 32 weights
The amount acrylic acid of part, the cation mono liquid solution of 40 weight portions, the bisulfite that mass concentration is 5% of 6 weight portions
Sodium solution, the ammonium persulfate solution that mass concentration is 5% of 6 weight portions.
The present embodiment additionally provides the preparation method of above-mentioned extended reach well drilling fluid thickening extracting and cutting agent, specifically includes following step
Rapid:
The sodium sulfite of 0.3 weight portion and the Ammonium persulfate. of 0.3 weight portion are separately added in beaker, respectively toward burning
Adding the distilled water of 6 weight portions in Bei, dissolve under magnetic stirring apparatus effect, prepared mass concentration is the sulfurous of 5%
Acid hydrogen sodium solution and mass concentration are the ammonium persulfate solution of 5%；
The trimethylamine solution of the vinyl chloride of 25 weight portions, 20 weight portions is added in beaker, magnetic agitation 2h, prepare
Cation mono liquid solution；
Acrylamide, acrylic acid, cation mono liquid solution it is sequentially added into equipped with stirring, thermometer, nitrogen conduit
In four-hole boiling flask, being subsequently adding 350 weight portion-400 weight portion distilled water, heating in water bath maintains the temperature at 60 DEG C-70
DEG C constant temperature stirring and dissolving；
Constant temperature leads to nitrogen 25 minutes, drives away the oxygen in reactant；
It is separately added into sodium sulfite solution and ammonium persulfate solution each 1/3rd under constant temperature stirring condition, stirs 25
Minute time add 1/3rd, add residue 1/3rd (stirring 25 minutes here and stirring when stir 30 minutes
30 minutes all to add the sodium sulfite solution of first part 1/3rd and ammonium persulfate solution as time zero)；
Continue constant temperature stirring reaction 90 minutes, prepare thickness glue reactant；
Thickness glue reactant is cooled to room temperature, with acetone precipitation, washing for several times, removes unreacted and obtain monomer,
To white solid, it is dried 2 hours at 75 DEG C in vacuum drying oven, pulverizes, cross 60 mesh sieves, obtain white powder
Product, is above-mentioned extended reach well drilling fluid thickening extracting and cutting agent.
Prepare 3 kinds of base slurries, be respectively as follows:
1#: fresh water-based is starched: 2wt% bentonite+0.2wt%Na2CO3+ 2wt%SPNH (walchowite)+0.5wt%
High-temperature starch+3wt% polymeric alcohol+3wt% lubricant；
2#: brine mud: formula 1#+4wt%NaCl；
3#: increase the weight of base slurry: formula 1#+ barite (bores density 1.4g/cm3)。
In above formula, bentonite is drilling fluid bentonite, meets oil and gas industry standard SY/T
5060-1993；SPNH is a kind of drilling fluid heat resisting fluid loss reducing agent, Kunming Jin Sida Chemical Co., Ltd. product；
Barite is drilling fluid barite, and it is mainly composed of BaSO4, density is more than 4.2g/cm3；High-temperature starch is one
Planting drilling fluid salt resistant filter loss reduction agent, lubricant is a kind of lubricant for drilling fluids, and two kinds of products are collected by CNPC
Drilling engineering Institute for Research and Technology of group provides.
The above-mentioned extended reach well drilling fluid of the present embodiment being separately added into 0wt%, 0.5wt% in above-mentioned 3 kinds of bases slurry increases
Viscous extracting and cutting agent, high-speed stirred 20min, seal aging 24 hours, load in ageing can and roll aging 16h in 100 DEG C,
Obtain sample in 3.
Above-mentioned 3 kinds of samples are carried out performance measurement: according to " GB/T 16783-1997 water-base drilling fluid on-the-spot test journey
Sequence " measure rheological characteristic and consider the property lost.Test result is as shown in table 2.
Table 2
As can be seen from Table 2, the extended reach well drilling fluid thickening extracting and cutting agent of the present embodiment to fresh water slurry, salt slurries and adds
After heavily slurry processes, the shear force of drilling fluid can be significantly improved, improve Improving Mud Carrying Capacity, and to API and height
Temperature high pressure filtration property has no significant effect, and compatibility is preferable.
Above example illustrates, the extended reach well drilling fluid thickening extracting and cutting agent of the present invention can significantly improve cutting of drilling fluid
Power, improves Improving Mud Carrying Capacity, and has no significant effect API and High Temperature High Pressure filtration property, and compatibility is preferable.
Claims (10)
1. an extended reach well drilling fluid thickening extracting and cutting agent, with the gross weight of this extended reach well drilling fluid thickening extracting and cutting agent
Be 100 weight portion meters, this extended reach well drilling fluid thickening extracting and cutting agent include 45 weight portion-55 weight portions acrylamide,
The acrylic acid of 25 weight portion-35 weight portions, the cation mono liquid solution of 30 weight portion-60 weight portions, 4 weight portions-10
The mass concentration of weight portion be 5% sodium sulfite solution, the mass concentration of 4 weight portion-10 weight portions be 5%
Ammonium persulfate solution.
Extended reach well drilling fluid the most according to claim 1 thickening extracting and cutting agent, wherein, described cationic monomer
Solution is the solution synthesized by vinyl chloride and trimethylamine solution.
Extended reach well drilling fluid the most according to claim 1 and 2 thickening extracting and cutting agent, wherein, with extended reach well
The gross weight of drilling fluid thickening extracting and cutting agent is 100 weight portion meters, and described cation mono liquid solution is by 15 weight portions-30
The vinyl chloride of weight portion and the solution of the trimethylamine solution synthesis of 15 weight portion-30 weight portions.
4. viscosify extracting and cutting agent, wherein, described trimethylamine according to the extended reach well drilling fluid described in Claims 2 or 3
The mass concentration of solution is 30%.
5. the application of the extended reach well drilling fluid thickening extracting and cutting agent described in any one of claim 1-4, this extended reach well
Drilling fluid thickening extracting and cutting agent is applicable to fresh water, saline, compound saline, fresh water-based slurry and the thickening of brine mud and cuts
The raising of power.
6. the preparation method of the extended reach well drilling fluid thickening extracting and cutting agent described in any one of claim 1-4, this is prepared
Method comprises the following steps:
Under 60 DEG C of-70 DEG C of water-baths, described acrylamide, acrylic acid, cation mono liquid solution are mixed with water, permanent
Temperature stirring, logical nitrogen 15min-25min；Wherein, the extended reach well drilling fluid thickening extracting and cutting agent of every 100 weight portions adds
Enter the water of 350 weight portion-400 weight portions；
Add described sodium sulfite solution and ammonium persulfate solution, wherein, described sodium sulfite solution and persulfuric acid
Ammonium salt solution adds in three times, the most each addition 1/3, respectively adds 1/3, stir 25min-30min after stirring 15min-25min
Rear each addition remaining 1/3；
Stirring 70min-90min, obtains thickness glue reactant, and above step is all carried out under 60 DEG C of-70 DEG C of water-baths；
Through washing, be dried, pulverize, sieving, obtain described extended reach well drilling fluid thickening extracting and cutting agent.
The preparation method of extended reach well drilling fluid the most according to claim 6 thickening extracting and cutting agent, wherein, described
Cation mono liquid solution is through the following steps that prepare:
Vinyl chloride and trimethylamine solution are stirred 1.5h-2h, obtains described cation mono liquid solution.
The preparation method of extended reach well drilling fluid the most according to claim 6 thickening extracting and cutting agent, wherein, described
The step being dried is to carry out in vacuum environment.
9. according to the preparation method of the extended reach well drilling fluid thickening extracting and cutting agent described in claim 6 or 8, wherein,
Described dry step is to be dried 2h-3h at 70 DEG C-90 DEG C.
The preparation method of extended reach well drilling fluid the most according to claim 6 thickening extracting and cutting agent, wherein, sieves
Time select the mesh screen of 60 mesh.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610170102.7A CN105754562A (en) | 2016-03-23 | 2016-03-23 | Tackifier and shear strength improving agent for drilling fluid for extended reach wells as well as preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610170102.7A CN105754562A (en) | 2016-03-23 | 2016-03-23 | Tackifier and shear strength improving agent for drilling fluid for extended reach wells as well as preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033284A (en) * | 2017-05-14 | 2017-08-11 | 张芸 | A kind of preparation method of drilling fluid extracting and cutting agent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149070A (en) * | 1995-08-01 | 1997-05-07 | 中国石油天然气总公司石油勘探开发科学研究院 | Amphoteric ionic polymer for drilling liquid and finishing liquid and its polymerization |
| CN102432751A (en) * | 2011-09-05 | 2012-05-02 | 中国石油大学(华东) | High-temperature colloid protecting anticaving fluid loss additive for drilling fluid and preparation method thereof |
| CN103113518A (en) * | 2013-02-27 | 2013-05-22 | 中国科学院长春应用化学研究所 | Viscosifier for drilling fluid and preparation method thereof |
| CN104829781A (en) * | 2015-04-03 | 2015-08-12 | 蒋官澄 | Water-based tackifying and shear strength improving agent for drilling fluids, and preparation method thereof |
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2016
- 2016-03-23 CN CN201610170102.7A patent/CN105754562A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149070A (en) * | 1995-08-01 | 1997-05-07 | 中国石油天然气总公司石油勘探开发科学研究院 | Amphoteric ionic polymer for drilling liquid and finishing liquid and its polymerization |
| CN102432751A (en) * | 2011-09-05 | 2012-05-02 | 中国石油大学(华东) | High-temperature colloid protecting anticaving fluid loss additive for drilling fluid and preparation method thereof |
| CN103113518A (en) * | 2013-02-27 | 2013-05-22 | 中国科学院长春应用化学研究所 | Viscosifier for drilling fluid and preparation method thereof |
| CN104829781A (en) * | 2015-04-03 | 2015-08-12 | 蒋官澄 | Water-based tackifying and shear strength improving agent for drilling fluids, and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033284A (en) * | 2017-05-14 | 2017-08-11 | 张芸 | A kind of preparation method of drilling fluid extracting and cutting agent |
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Application publication date: 20160713 |