CN105199682B - A kind of drilling fluid strong adsorbent solid lubricant and its synthetic method - Google Patents
A kind of drilling fluid strong adsorbent solid lubricant and its synthetic method Download PDFInfo
- Publication number
- CN105199682B CN105199682B CN201510681906.9A CN201510681906A CN105199682B CN 105199682 B CN105199682 B CN 105199682B CN 201510681906 A CN201510681906 A CN 201510681906A CN 105199682 B CN105199682 B CN 105199682B
- Authority
- CN
- China
- Prior art keywords
- parts
- drilling fluid
- solid lubricant
- sodium
- synthetic method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
-
- 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
- C09K2208/34—Lubricant additives
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
It includes following component that the present invention, which specifically provides a kind of drilling fluid with strong adsorbent solid lubricant: by weight, reaction carriers: 100-300 parts, organic solvent: 2-15 parts, monomer: 15-50 parts, bleeding agent: 50-200 parts, initiator: 0.01-0.05 parts, surfactant: 1-5 parts, water: 100-300 parts.This drilling fluid of the invention is easy to get with strong adsorbent solid lubricant raw material, synthetic method is simple, compared with ordinary solid lubricant, it is not easy to be removed by solid control equipment with preferable absorption property, strong adsorbed film can be formed in metal surface and drilling fluid solid particle surface, while filtrate loss controllability can also be improved and blocked anti-collapse.
Description
Technical field
The invention belongs to lubricant research fields, and in particular to a kind of drilling fluid strong adsorbent solid lubricant and its synthesis
Method.
Background technique
There are two main classes for lubricant for drilling fluid kind at present, i.e. solid kind and liquid type.Graphite, plastic beads, glass are small
The solid lubricants such as ball are easy to be removed by solid control equipment in drilling process, and boring due to being limited by solids size
Under the extruding or concussion of bar, there is the possibility of destruction, deformation, for common graphite powder as lubricant, drop frictional resistance effect is unobvious, and
Hydrophily is insufficient, and dust when dosing will also result in threat to the health of construction personnel, therefore in use by certain limit
System.For liquid series lubricant agent, although easy to use, there is many limitations for packaging, transport and the storage of liquid.
And fluid lubricant performance is single, has been only capable of lubricating action, can improve drilling fluid filtration reduction simultaneously and block anti-collapse profit
Lubrication prescription is also rarely found.
Summary of the invention
It, cannot be in metal surface and brill the purpose of the present invention is overcoming existing lubricant for drilling fluid easily to be removed by solid control equipment
Well liquid solid particles surface forms strong adsorbed film, filtrate loss controllability and the problem for blocking caving-preventing characteristic difference.
For this purpose, the present invention provides a kind of drilling fluid strong adsorbent solid lubricants, including following component: by weight
Meter, 100-300 parts of reaction carriers, 2-15 parts of organic solvents, 15-50 parts of monomers, 50-200 parts of bleeding agents, 0.01-0.05 parts are drawn
Send out agent, 1-5 parts of surfactants, 100-300 parts of water.
Above-mentioned reaction carriers are selected from one of lamellar graphite, vermiculite, asbestos, bentonite.
Above-mentioned organic solvent is selected from sorbitan tristearate, alkyl phenol polyoxyethylene ether, Tween 80, emulsifier A-
7, one of No. 26 White Mineral Oils, albolene, sorbierites.
Above-mentioned monomer is selected from acrylic acid, methacrylic acid, acrylamide, dimethyl diallyl benzene sulfonic acid, maleic acid
One of acid anhydride, dimethyl diallyl benzene sulfonate.
Above-mentioned bleeding agent is selected from fatty alcohol polyoxyethylene ether, sodium alkyl benzene sulfonate, alkyl sulfate sodium, sulfamic acid sodium
One of.
Above-mentioned initiator is selected from potassium peroxydisulfate, sodium peroxydisulfate, ammonium persulfate, sodium sulfite, sodium hydrogensulfite, peroxidating
One of benzoyl, azo-bis-isobutyrate hydrochloride, two isobutyl imidazoline hydrochloride of azo.
Above-mentioned surfactant is selected from silicate, sodium tripolyphosphate, calgon, ammonium lauryl sulfate, methyl
One of amylalcohol, fatty acid polyglycol hexylene glycol rouge.
Above-mentioned lubricant synthetic method includes the following steps:
Step 1) prepares following each component: reaction carriers: 100-300 parts, organic solvent: 2-15 parts, list by weight
Body: 15-50 parts, bleeding agent: 50-200 parts, initiator: 0.01-0.05 parts, surfactant: 1-5 parts, water: 100-300 parts；
Reaction carriers, organic solvent, surfactant and water are added in there-necked flask step 2), stir 10-20 minutes；
Step 2) reaction system constant temperature to 20 DEG C -30 DEG C, in the case where system is passed through nitrogen, is added single step 3)
Body and initiator, are stirred；
Step 4) leads to step 3) reaction system nitrogen 30 minutes, and bleeding agent is added in system after becoming sticky, while logical nitrogen is close
It closes, is reacted 4 hours through system；
Products therefrom in step 4) is put into fluidized bed drying to get graininess finished product by step 5).
Beneficial effects of the present invention:
(1) this drilling fluid of the invention is easy to get with strong adsorbent solid lubricant raw material, and synthetic method is simple.
(2) this drilling fluid of the invention passes through object with strong adsorbent solid lubricant since there is one layer of strong adsorbed film on surface
Physicochemical effect increases its adhesive force between the borehole wall and lubricant, compared with ordinary solid lubricant, strong adsorpting lubrication
The combination that agent lubricating coefficient reduced rate is greater than between 75%, and the borehole wall between solid lubricant is closer, is not easy to be removed by solid control equipment
It goes.
(3) it after drilling fluid is added with strong adsorbent solid lubricant in this drilling fluid of the invention, is not easy to be removed by solid control equipment
It goes, therefore additive amount can be effectively reduced, reduce by 10% or so than original additive amount.
(4) this drilling fluid of the invention has preferable filtrate loss controllability and anti-collapse property with strong adsorbent solid lubricant,
120 DEG C, 3.5MPa, 30min filter loss is less than 5ml.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is schematic diagram of the ordinary solid lubricant in conjunction with the borehole wall.
Fig. 2 is the schematic diagram of strong adsorbent solid lubricant of the invention in conjunction with the borehole wall.
Pass through diagram, it is found that compare ordinary solid lubricant, strong adsorbent solid lubricant of the invention and the borehole wall it
Between combination it is closer, this is because strong adsorbent solid lubricant has one layer of strong adsorbed film, increased by physics chemical action
Its adhesive force between the borehole wall and lubricant is added.
Specific embodiment
Embodiment 1:
It, cannot be in metal surface and drilling fluid solid in order to overcome existing lubricant for drilling fluid easily to be removed by solid control equipment
Grain surface forms strong adsorbed film, filtrate loss controllability and the problem for blocking caving-preventing characteristic difference.
Present embodiments provide a kind of drilling fluid strong adsorbent solid lubricant, including following component: by weight,
100-300 parts of reaction carriers, 2-15 parts of organic solvents, 15-50 parts of monomers, 50-200 parts of bleeding agents, 0.01-0.05 parts of initiations
Agent, 1-5 parts of surfactants, 100-300 parts of water.
This drilling fluid of the invention is included the following steps: with strong adsorbent solid lubricant synthetic method
Step 1) prepares following each component: reaction carriers: 100-300 parts, organic solvent: 2-15 parts, list by weight
Body: 15-50 parts, bleeding agent: 50-200 parts, initiator: 0.01-0.05 parts, surfactant: 1-5 parts, water: 100-300 parts；
Reaction carriers, organic solvent, surfactant and water are added in there-necked flask step 2), stir 10-20 minutes；
Step 2) reaction system constant temperature to 20 DEG C -30 DEG C, in the case where system is passed through nitrogen, is added single step 3)
Body and initiator, are stirred；
Step 4) leads to step 3) reaction system nitrogen 30 minutes, and bleeding agent is added in system after becoming sticky, while logical nitrogen is close
It closes, is reacted 4 hours through system；
Products therefrom in step 4) is put into fluidized bed drying to get graininess finished product by step 5).
This drilling fluid of the invention is easy to get with strong adsorbent solid lubricant raw material, and synthetic method is simple, such as Fig. 1 and Fig. 2
It is shown, it is found that compare ordinary solid lubricant, the combination between strong adsorbent solid lubricant of the invention and the borehole wall is tighter
Close, ordinary solid lubricant lubricating coefficient reduced rate is 65%, and strong adsorpting lubrication agent lubricating coefficient reduced rate is greater than 75%, this is this
This strong adsorbent solid lubricant of invention increases itself and well by physics chemical action since there is one layer of strong adsorbed film on surface
Adhesive force between wall and lubricant, compared with ordinary solid lubricant, the combination between the borehole wall between solid lubricant is more
Closely, it is not easy to be removed by solid control equipment.
Embodiment 2:
A kind of strong adsorbent solid lubricant of drilling fluid is present embodiments provided, synthetic method is as follows:
100 parts of reaction carriers, 2 parts of organic solvents, 1 part of surfactant and 100 parts of water are added in there-necked flask,
It is stirred under 10000 revs/min of speed after ten minutes, constant temperature is to 20 DEG C, and in the case where system is passed through nitrogen, 15 parts of lists are added
Body and 0.01 part of initiator, are stirred, and lead to nitrogen after 30 minutes, and 50 parts of bleeding agents, while logical nitrogen is added in system after becoming sticky
It is closed, after reaction 4 hours, graininess finished product is both obtained after product is put into fluidized bed drying.
Wherein, as preferred embodiment,
The reaction carriers choose lamellar graphite；
The organic solvent chooses sorbitan tristearate or alkyl phenol polyoxyethylene ether；
The monomer chooses acrylic or methacrylic acid；
The bleeding agent chooses fatty alcohol polyoxyethylene ether；
The initiator chooses potassium peroxydisulfate or sodium peroxydisulfate；
The surfactant chooses silicate or sodium tripolyphosphate.
Effect assessment:
(1) with strong adsorbent solid lubricant, the lubricating coefficient reduced rate in application reaches this drilling fluid of the present embodiment
78%。
(2) addition is effectively reduced after drilling fluid is added with strong adsorbent solid lubricant in this drilling fluid provided in this embodiment
Amount reduces by 9% compared to original additive amount.
(3) the strong adsorbent solid lubricant of this drilling fluid provided in this embodiment has preferable filtrate loss controllability and prevents
Collapsing property, at 120 DEG C, under conditions of 3.5MPa, 30min filter loss is 3.6mL.
Embodiment 3:
A kind of strong adsorbent solid lubricant of drilling fluid is present embodiments provided, synthetic method is as follows:
200 parts of reaction carriers, 10 parts of organic solvents, 3 parts of surfactants and 200 parts of water are added in there-necked flask,
After stirring 15 minutes under 10000 revs/min of speed, constant temperature is to 25 DEG C, and in the case where system is passed through nitrogen, 35 parts of lists are added
Body and 0.03 part of initiator, are stirred, and lead to nitrogen after 30 minutes, and 150 parts of bleeding agents, while logical nitrogen is added in system after becoming sticky
It is closed, after reaction 4 hours, graininess finished product is both obtained after product is put into fluidized bed drying.
Wherein, as preferred embodiment:
The reaction carriers choose asbestos；
The organic solvent chooses No. 26 White Mineral Oils or albolene；
The monomer chooses maleic anhydride；
The bleeding agent chooses alkyl sulfate sodium；
The initiator chooses sodium hydrogensulfite or benzoyl peroxide；
The surfactant chooses methyl anyl alcohol.
Effect assessment:
(1) with strong adsorbent solid lubricant, the lubricating coefficient reduced rate in application reaches this drilling fluid of the present embodiment
78%。
(2) addition is effectively reduced after drilling fluid is added with strong adsorbent solid lubricant in this drilling fluid provided in this embodiment
Amount reduces by 9% compared to original additive amount.
(3) the strong adsorbent solid lubricant of this drilling fluid provided in this embodiment has preferable filtrate loss controllability and prevents
Collapsing property, at 120 DEG C, under conditions of 3.5MPa, 30min filter loss is 3.6mL.
Embodiment 4:
A kind of strong adsorbent solid lubricant of drilling fluid is present embodiments provided, synthetic method is as follows:
300 parts of reaction carriers, 15 parts of organic solvents, 5 parts of surfactants and 300 parts of water are added in there-necked flask,
It is stirred under 10000 revs/min of speed after twenty minutes, constant temperature is to 30 DEG C, and in the case where system is passed through nitrogen, 50 parts of lists are added
Body and 0.05 part of initiator, are stirred, and lead to nitrogen after 30 minutes, and 200 parts of bleeding agents, while logical nitrogen is added in system after becoming sticky
It is closed, after reaction 4 hours, graininess finished product is both obtained after product is put into fluidized bed drying.
Wherein, as preferred embodiment:
The reaction carriers choose bentonite；
The organic solvent chooses sorbierite；
The monomer chooses dimethyl diallyl benzene sulfonate；
The bleeding agent chooses sulfamic acid sodium；
The initiator chooses azo-bis-isobutyrate hydrochloride or two isobutyl imidazoline hydrochloride of azo；
The surfactant chooses fatty acid polyglycol hexylene glycol rouge.
Effect assessment:
(1) with strong adsorbent solid lubricant, the lubricating coefficient reduced rate in application reaches this drilling fluid of the present embodiment
78%。
(2) addition is effectively reduced after drilling fluid is added with strong adsorbent solid lubricant in this drilling fluid provided in this embodiment
Amount reduces by 11% compared to original additive amount.
(3) the strong adsorbent solid lubricant of this drilling fluid provided in this embodiment has preferable filtrate loss controllability and prevents
Collapsing property, at 120 DEG C, under conditions of 3.5MPa, 30min filter loss is 3.9mL.
In conclusion this drilling fluid of the invention is easy to get with strong adsorbent solid lubricant raw material, synthetic method is simple, by
There is one layer of strong adsorbed film in surface, its adhesive force between the borehole wall and lubricant is increased by physics chemical action, and it is general
Logical solid lubricant is compared, and the combination between the borehole wall between solid lubricant is closer, is not easy to be removed by solid control equipment.It is answering
The used time strong adsorbent solid lubricant lubricating coefficient reduced rate reaches 78%, and additive amount reduces by 10% or so, and at 120 DEG C,
Under conditions of 3.5MPa, this drilling fluid provided in this embodiment with strong adsorbent solid lubricant 30min filter loss be less than
5mL。
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.
Claims (1)
1. a kind of drilling fluid synthetic method of strong adsorbent solid lubricant, it is characterised in that: the lubricant synthetic method packet
Include following steps:
Step 1) prepares following each component: reaction carriers: 100-300 parts, organic solvent: 2-15 parts, monomer by weight:
15-50 parts, bleeding agent: 50-200 parts, initiator: 0.01-0.05 parts, surfactant: 1-5 parts, water: 100-300
Part；
Reaction carriers, organic solvent, surfactant and water are added in there-necked flask step 2), stir 10-20 minutes；
To 20 DEG C -30 DEG C, in the case where system is passed through nitrogen, monomer is added in step 2) reaction system constant temperature by step 3)
And initiator, it is stirred；
Step 4) leads to step 3) reaction system nitrogen 30 minutes, and bleeding agent is added in system after becoming sticky, while logical nitrogen is close
It closes, is reacted 4 hours through system；
Products therefrom in step 4) is put into fluidized bed drying to get graininess finished product by step 5)；
The reaction carriers are one of vermiculite, asbestos, bentonite；The organic solvent is selected from Tween 80, emulsifier
One of A-7, No. 26 White Mineral Oils；The monomer is selected from acrylic acid, methacrylic acid, acrylamide, two propylene of dimethyl
One of base benzene sulfonic acid, maleic anhydride, dimethyl diallyl benzene sulfonate；The bleeding agent is selected from fatty alcohol polyoxy second
One of alkene ether, sodium alkyl benzene sulfonate, alkyl sulfate sodium, sulfamic acid sodium；The initiator is selected from potassium peroxydisulfate, mistake
Sodium sulphate, ammonium persulfate, sodium sulfite, sodium hydrogensulfite, benzoyl peroxide, azo-bis-isobutyrate hydrochloride, azo two are different
One of Butamisole quinoline hydrochloride；The surfactant is in ammonium lauryl sulfate, fatty acid polyglycol hexylene glycol rouge
One kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681906.9A CN105199682B (en) | 2015-10-21 | 2015-10-21 | A kind of drilling fluid strong adsorbent solid lubricant and its synthetic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681906.9A CN105199682B (en) | 2015-10-21 | 2015-10-21 | A kind of drilling fluid strong adsorbent solid lubricant and its synthetic method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105199682A CN105199682A (en) | 2015-12-30 |
| CN105199682B true CN105199682B (en) | 2019-02-22 |
Family
ID=54947648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510681906.9A Active CN105199682B (en) | 2015-10-21 | 2015-10-21 | A kind of drilling fluid strong adsorbent solid lubricant and its synthetic method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105199682B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107699210B (en) * | 2017-09-20 | 2020-05-05 | 江苏师范大学 | Preparation method of multifunctional high-temperature-resistant lubricant for drilling fluid |
| CN110835111B (en) * | 2019-12-02 | 2021-07-09 | 浙江树人学院（浙江树人大学） | Preparation process of bentonite for oil-based drilling fluid |
| CN114231260B (en) * | 2022-01-13 | 2022-06-03 | 东北石油大学 | Water-based drilling fluid mud cake solid lubricant based on hydration filling mechanism |
| CN116063995B (en) * | 2023-01-28 | 2023-06-20 | 潍坊远东膨润土有限公司 | Composite bentonite and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250396A (en) * | 2008-03-27 | 2008-08-27 | 合肥滨春化工科技有限公司 | Pure luminescence-free lubricant for petroleum drilling liquid |
| CN102040959A (en) * | 2009-10-23 | 2011-05-04 | 王兵 | Drilling mud lubricant |
| CN103013466A (en) * | 2012-12-31 | 2013-04-03 | 中国地质大学（北京） | Solid paraffin lubricant for drilling fluid and preparation method of solid paraffin lubricant |
| CN103484084A (en) * | 2013-09-18 | 2014-01-01 | 新疆贝肯能源工程股份有限公司 | Multifunctional oligomerization lubricant for drilling fluid and preparation method of lubricant |
| CN104045780A (en) * | 2014-05-30 | 2014-09-17 | 中国石油化工集团公司 | High temperature resistant solid lubrication filtrate reducer for drilling fluid |
| CN104109509A (en) * | 2013-04-17 | 2014-10-22 | 中国石油大学(北京) | Water-based drilling fluid lubricant composition and preparation method thereof |
-
2015
- 2015-10-21 CN CN201510681906.9A patent/CN105199682B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250396A (en) * | 2008-03-27 | 2008-08-27 | 合肥滨春化工科技有限公司 | Pure luminescence-free lubricant for petroleum drilling liquid |
| CN102040959A (en) * | 2009-10-23 | 2011-05-04 | 王兵 | Drilling mud lubricant |
| CN103013466A (en) * | 2012-12-31 | 2013-04-03 | 中国地质大学（北京） | Solid paraffin lubricant for drilling fluid and preparation method of solid paraffin lubricant |
| CN104109509A (en) * | 2013-04-17 | 2014-10-22 | 中国石油大学(北京) | Water-based drilling fluid lubricant composition and preparation method thereof |
| CN103484084A (en) * | 2013-09-18 | 2014-01-01 | 新疆贝肯能源工程股份有限公司 | Multifunctional oligomerization lubricant for drilling fluid and preparation method of lubricant |
| CN104045780A (en) * | 2014-05-30 | 2014-09-17 | 中国石油化工集团公司 | High temperature resistant solid lubrication filtrate reducer for drilling fluid |
Non-Patent Citations (1)
| Title |
|---|
| 钻井液固体润滑剂的试验研究;王贵和等;《石油钻探技术》;20050525;第33卷(第03期);19-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105199682A (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105199682B (en) | A kind of drilling fluid strong adsorbent solid lubricant and its synthetic method | |
| US20180347317A1 (en) | Use of Nanoparticles in Cleaning Well Bores | |
| US10865337B1 (en) | Multi-functional weighting agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof | |
| US9856414B2 (en) | Compositions, systems and methods of making coated additive components | |
| MY193667A (en) | Hydrobically treated particulates for improved return permeability | |
| WO2004092301A3 (en) | Drilling fluids comprising sized graphite particles | |
| CN106635498A (en) | Recyclable environment-friendly cleaning agent, and preparation and application method thereof | |
| WO2015010628A1 (en) | Method for solving water block effect | |
| CN105358664A (en) | Aqueous lubricant for plastic working of metal material and having superior gas clogging resistance and post-moisture absorption workability | |
| EP2978919A1 (en) | Methods of mitigating bituminous material adhesion using nano-particles | |
| CN106867489B (en) | Cleaning solution for removing oil sludge pollution of oil-based drilling fluid | |
| CA2713212A1 (en) | Method for treating oil and gas wells | |
| RU2676776C2 (en) | Composition of drilling fluid and drilling method, suitable for reducing bitumen deposits on drill components | |
| CN108003966A (en) | A kind of molybdenum disulfide and titanium dioxide modification ferriferrous oxide nano composite material | |
| AU2014326989A1 (en) | Drilling fluid composition and method useful for reducing accretion of bitumen on drill components | |
| CN107698202A (en) | A kind of low dirt environment protection colour cement base powder and waterproof material | |
| CN104263483A (en) | Efficient environment-friendly water-based copper wire-drawing liquor and preparation method thereof | |
| RU2015147998A (en) | FLUID COMPOSITION FOR THERMAL TREATMENT OF CELLS | |
| CN104611107A (en) | Excellent-performance wiredrawing fluid added with nanometer graphite, and preparation method for wiredrawing fluid | |
| CN105536317B (en) | One kind cleaning part filter | |
| CN107587148A (en) | Super oil removing metal works solid cleaner | |
| RU2319734C1 (en) | Lubricating composition for hot molding process | |
| CN105349119B (en) | Preparation method of silicofluoride diluent for drilling fluid | |
| CN109476791B (en) | Materials and methods for oil well cementing additives | |
| CA2924445C (en) | Use of nanoparticles in cleaning well bores |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |