WO2014102602A2 - Friction material composition for coating pvc electrical wire - Google Patents
Friction material composition for coating pvc electrical wire Download PDFInfo
- Publication number
- WO2014102602A2 WO2014102602A2 PCT/IB2013/002993 IB2013002993W WO2014102602A2 WO 2014102602 A2 WO2014102602 A2 WO 2014102602A2 IB 2013002993 W IB2013002993 W IB 2013002993W WO 2014102602 A2 WO2014102602 A2 WO 2014102602A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pvc
- electrical wire
- material composition
- friction material
- coating
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/04—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C09D127/06—Homopolymers or copolymers of vinyl chloride
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
Definitions
- the present invention relates to a friction material composition for coating a PVC electrical wire, which can significantly reduce frictions between an outermost layer of the PVC electrical wire and a surface in contact with said outermost layer.
- Korean Patent Publication no. 10-2007-0093903 discloses an electrical line comprising an electrical conductor and a layer of thermoplastic material, wherein the layer of thermoplastic material consists of at least one inner layer and at least one outer layer.
- the inner layer of thermoplastic material contains a lubricant, and the lubricant then migrates to the outer layer over a certain period of time.
- Korean Patent Registration no. 10-0747932 discloses a composition for preparing an insulating material for coating an electrical wire, comprising EVA copolymer, EEA copolymer, EMMA copolymer or EBA copolymer as a base resin, wherein the composition comprises a lubricant such as fatty acid amide.
- a lubricant such as fatty acid amide.
- the fatty acid amide is merely disclosed as one example of lubricants listed in parallel .
- halogen-free resin composition has been developed as a material for electrical wire in the art since it is reported that halogen is harmful to human bodies.
- the halogen-based PVC has much better properties than the halogen-free resin in terms of cost and efficiency, it is still used widely in the art. For this reason, it is preferable to maintain the facilities and processes previously established for preparing PVC electrical wires which are most widely used in the art.
- it is required to coat the outermost layer of the conventional PVC electrical wires by using a lubricant as a form of additive, in order to minimize frictions between electrical wires and surfaces.
- the purpose of the present invention is to provide a friction material composition which can be coated on PVC electrical wire, in order to reduce frictions between the PVC electrical wire and the surface in contact with said wire .
- This purpose of the present invention is achieved by a friction material composition being consisted of PVC (polyvinylchloride ) and fatty acid amide.
- the friction material composition according to the present invention is coated on an outermost layer of the commercially available PVC electrical wires. Therefore, the fatty acid amide moves, at certain temperatures, directly to the frictional contact surface in a shorter time than the above-mentioned prior arts, and thus a faster effect can be obtained.
- a lubricant layer is formed on the outermost layer of PVC electrical wire, a better friction reduction effect can be obtained, and the thermal stability at a given temperature is excellent.
- PVC electrical wire in the description means an electrical wire surrounded by a PVC (polyvinylchloride) coating.
- Said PVC coating is well known by the person skilled in the art, and can be made from a PVC polymer matrix, optionally with additive (s) and/or filler (s) .
- said PVC coating can be directly in physical contact with the electrical wire.
- said PVC coating can surround at least one insulated electrical wire, so that the PVC coating is not directly in physical contact with the electrical wire as such.
- the composition comprises 5 to 15 parts by weight of the fatty acid amide, based on 100 parts by weight of the PVC.
- the fatty acid amide is selected from the group consisting of oleamide, stearamide and oleyl palmitamide.
- Another object of the invention is a friction material composition comprising PVC and fatty acid amide, as defined in the present invention, wherein said friction material composition is used in coating an electrical wire, so that said electrical wire being directly in physical contact with said coating. More preferably, said coating can be the outermost layer of the electrical wire, so that said electrical wire can be surrounded by said coating only.
- Another object of the invention is an electric cable comprising a PVC electrical wire surrounded by a coating as outermost layer of the electric cable, characterized in that said coating is obtained from a friction material composition comprising PVC and fatty acid amide, as defined in the present invention.
- a friction material composition according to the present invention is extruded and coated on the outermost layer of traditional PVC electrical wires, it can be applied without changing the composition of traditional PVC electrical wires. Therefore, in accordance with the present invention, the previously established facilities for traditional PVC electrical wires can be used as they are. And also, it costs much less and can be easily applied industrially. On the contrary, in order to reduce frictions between electrical wires and surfaces in the prior art, an electrical wire with different compositions or different layers should be newly prepared, and thus it needs a lot of costs for facilities and manufactures.
- a lubricant layer is directly formed on the PVC electrical wire surface, which will be in direct contact with surfaces of ships, after a certain period of time.
- a lubricant layer is formed directly between an electrical wire and a surface in contact with the electrical wire, and more particularly between a PVC electrical wire and a surface in contact with the PVC electrical wire.
- the friction material composition according to the present invention is coated on the outermost layer of PVC electrical wires, the flexibility of electrical wire is not affected. Additionally, no physical changes occur in view of its external diameter, weight, etc.
- the electrical wire, and more particularly the PVC electrical wire, coated with the friction material composition according to the present invention can maintain continuity of sliding during a certain period of time, and achieve 20% reduction effect of friction coefficient which is actually required in industrial sites (especially, a shipyard where ships are built) . Accordingly, one can avoid spending unnecessary manpower and time in pulling, moving and removing cables when building ships in a shipyard. Thus, cables can be installed even with less power, and working hours are significantly reduced.
- compositions comprising PVC and fatty acid amide, on the outermost layer of PVC cable (i.e. PVC electrical wire) , and such coated specimen was used as an experimental group.
- PVC cable i.e. PVC electrical wire
- Components and contents of said composition are present in Table 1 below.
- a specimen of PVC cable i.e. PVC electrical wire
- a composition comprising PVC and fatty acid amide
- the specimens prepared as an experimental group and a control group were cut in the length of 10m respectively, and then slip tests were carried out.
- the inventors installed a tensile tester equipped with a motor which can pull from the ground to the vertical height 5m at a constant rate under the laboratory temperature 7 ° C .
- two steel bars with diameter of 20cm were installed at the place vertically 50cm from the ground, with a space of lm between two steel bars.
- Each of the prepared specimens was attached to the tensile tester, and then pulled up to 5m high at a constant rate.
- the cable was placed such that it is in contact with both the bottom side of one steel bar and the top side of the other steel bar at the same time. As a result, it came in contact with two steel bars and was subjected to frictions.
- the standard handling weight per person is supposed to be 30kg, about 2 persons are needed to carry a PVC cable according to the control group, whereas only about 1.53 persons are needed to carry a PVC cable surrounded by the outermost layer according to the present invention.
- the PVC cable according to the control group will be moved 10m per hour, whereas the PVC cable surrounded by the outermost layer according to the present invention will be moved at a distance of more than 10m per hour.
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Abstract
The present invention relates to a friction material composition for use in coating a PVC electrical wire, which can significantly reduce frictions between an outermost layer of the PVC electrical wire and a surface which comes into contact with said layer.
Description
FRICTION MATERIAL COMPOSITION FOR COATING PVC ELECTRICAL WIRE
Field of the invention
The present invention relates to a friction material composition for coating a PVC electrical wire, which can significantly reduce frictions between an outermost layer of the PVC electrical wire and a surface in contact with said outermost layer.
Background of the invention
In industrial sites using electrical wires, for example a shipyard where ships are manufactured, a lot of electrical wires are placed in a situation that they should be frequently installed, pulled, moved and/or removed in order to operate or shift power supply devices and communication equipments. In this case, frictions occur between the electrical wires and the various surfaces such as a deck of ship or a concrete floor. Due to such frictions, more labor force and time are required for spreading, moving and removing electrical wires. If one can effectively reduce frictions occurred as in the above, working time becomes shortened and thus working efficiency would be improved. As one of methods for this, it has been considered to form a lubricant layer within an electrical wire.
Korean Patent Publication no. 10-2007-0093903 discloses an electrical line comprising an electrical conductor and a layer of thermoplastic material, wherein the layer of thermoplastic material consists of at least one inner layer and at least one outer layer. The inner layer of thermoplastic material contains a lubricant, and the lubricant then migrates to the outer layer over a certain
period of time. Thus, there is still a need to improve a friction reduction effect by letting the lubricant to migrate directly to the surface of electrical wire, not to the outer layer among several layers consisting of the electrical wire.
Korean Patent Registration no. 10-0747932 discloses a composition for preparing an insulating material for coating an electrical wire, comprising EVA copolymer, EEA copolymer, EMMA copolymer or EBA copolymer as a base resin, wherein the composition comprises a lubricant such as fatty acid amide. However, it discloses only a use for insulation of composition, and the fatty acid amide is merely disclosed as one example of lubricants listed in parallel .
Meanwhile, a halogen-free resin composition has been developed as a material for electrical wire in the art since it is reported that halogen is harmful to human bodies. However, since the halogen-based PVC has much better properties than the halogen-free resin in terms of cost and efficiency, it is still used widely in the art. For this reason, it is preferable to maintain the facilities and processes previously established for preparing PVC electrical wires which are most widely used in the art. Thus, it is required to coat the outermost layer of the conventional PVC electrical wires by using a lubricant as a form of additive, in order to minimize frictions between electrical wires and surfaces.
Detailed description of the invention
The purpose of the present invention is to provide a friction material composition which can be coated on PVC
electrical wire, in order to reduce frictions between the PVC electrical wire and the surface in contact with said wire . This purpose of the present invention is achieved by a friction material composition being consisted of PVC (polyvinylchloride ) and fatty acid amide. The friction material composition according to the present invention is coated on an outermost layer of the commercially available PVC electrical wires. Therefore, the fatty acid amide moves, at certain temperatures, directly to the frictional contact surface in a shorter time than the above-mentioned prior arts, and thus a faster effect can be obtained. Moreover, since a lubricant layer is formed on the outermost layer of PVC electrical wire, a better friction reduction effect can be obtained, and the thermal stability at a given temperature is excellent.
The expression "PVC electrical wire" in the description means an electrical wire surrounded by a PVC (polyvinylchloride) coating.
Said PVC coating is well known by the person skilled in the art, and can be made from a PVC polymer matrix, optionally with additive (s) and/or filler (s) .
In a first embodiment, said PVC coating can be directly in physical contact with the electrical wire.
In a second embodiment, said PVC coating can surround at least one insulated electrical wire, so that the PVC coating is not directly in physical contact with the electrical wire as such.
In a preferred embodiment, the composition comprises 5 to 15 parts by weight of the fatty acid amide, based on 100
parts by weight of the PVC.
In another preferred embodiment, the fatty acid amide is selected from the group consisting of oleamide, stearamide and oleyl palmitamide.
Another object of the invention is a friction material composition comprising PVC and fatty acid amide, as defined in the present invention, wherein said friction material composition is used in coating an electrical wire, so that said electrical wire being directly in physical contact with said coating. More preferably, said coating can be the outermost layer of the electrical wire, so that said electrical wire can be surrounded by said coating only.
Another object of the invention is an electric cable comprising a PVC electrical wire surrounded by a coating as outermost layer of the electric cable, characterized in that said coating is obtained from a friction material composition comprising PVC and fatty acid amide, as defined in the present invention.
Advantageous Effects
Since a friction material composition according to the present invention is extruded and coated on the outermost layer of traditional PVC electrical wires, it can be applied without changing the composition of traditional PVC electrical wires. Therefore, in accordance with the present invention, the previously established facilities for traditional PVC electrical wires can be used as they are. And also, it costs much less and can be easily applied industrially. On the contrary, in order to reduce frictions between electrical wires and surfaces in the
prior art, an electrical wire with different compositions or different layers should be newly prepared, and thus it needs a lot of costs for facilities and manufactures. Furthermore, since the friction material composition according to the present invention is coated on the outermost layer of PVC electrical wires, a lubricant layer is directly formed on the PVC electrical wire surface, which will be in direct contact with surfaces of ships, after a certain period of time. In other words, a lubricant layer is formed directly between an electrical wire and a surface in contact with the electrical wire, and more particularly between a PVC electrical wire and a surface in contact with the PVC electrical wire. Thus, the lubricant effect is much more improved, and accordingly the friction reduction effect becomes more excellent.
Moreover, even in the case that the friction material composition according to the present invention is coated on the outermost layer of PVC electrical wires, the flexibility of electrical wire is not affected. Additionally, no physical changes occur in view of its external diameter, weight, etc. In addition, the electrical wire, and more particularly the PVC electrical wire, coated with the friction material composition according to the present invention can maintain continuity of sliding during a certain period of time, and achieve 20% reduction effect of friction coefficient which is actually required in industrial sites (especially, a shipyard where ships are built) . Accordingly, one can avoid spending unnecessary manpower and time in pulling, moving and removing cables when building ships in a
shipyard. Thus, cables can be installed even with less power, and working hours are significantly reduced.
Examples
The present invention is described in further detail in the following Examples which are not in any way intended to limit the scope of the invention as claimed. In addition, it will appear to a person skilled in the art that various modifications may be made to the disclosed embodiments, and that such modifications are intended to be within the scope of the present invention.
The inventors extruded a composition comprising PVC and fatty acid amide, on the outermost layer of PVC cable (i.e. PVC electrical wire) , and such coated specimen was used as an experimental group. Components and contents of said composition are present in Table 1 below.
A specimen of PVC cable (i.e. PVC electrical wire) not coated with a composition comprising PVC and fatty acid amide, was used as a control group.
Table 1
Each of the prepared specimens was attached to the tensile tester, and then pulled up to 5m high at a constant rate. The cable was placed such that it is in contact with both the bottom side of one steel bar and the top side of the other steel bar at the same time. As a result, it came in contact with two steel bars and was subjected to frictions.
Tensile loads at the measuring point 1 (vertically 1.6m from the ground), the measuring point 2 (vertically 3.2m from the ground) , and the measuring point 3 (vertically 5.0m from the ground) were shown on the electronic scale of the tensile tester. The same experiments were repeated three times, and each of measured tensile loads (unit: kg) is present in Table 2 below.
Table 2
Test no. Measuring Control group Experimental group point specimen specimen
1 41.2 35.5
2 52.6 42.0
No. 1 3 53.8 45.2
Maximum 64.1 45.2
Average 56.8 44.1
1 39.3 40.6
2 55.6 46.0
No. 2 3 64.6 46.2
Maximum 62.7 47.8
Average 61.0 46.7
1 37.9 36.3
2 49.9 48.1
No. 3 3 48.7 43.8
Maximum 61.0 49.4
Average 53.2 47.1
In Table 2, the tensile load of control group specimens is 60.33kg at average, and the tensile load of experimental group specimens is 45.96kg at average. Based on these results, friction coefficients for the control group specimen and the experimental group specimen were calculated as follows: friction coefficient of control group specimen
= frictional force F / normal force N
= 60.33kg / 28.98kg
= 2.082 friction coefficient of experimental group specimen = frictional force F / normal force N
= 45.96kg / 28.98kg
= 1.587
As a result, the friction coefficient of experimental group specimen was reduced by about 23%, compared to that of control group specimen. Thus, the frictional force between a PVC cable surrounded by the outermost layer according to the present invention (cf . experimental group) and a surface was remarkably reduced, and accordingly the efficiency of work can be much better.
For example, when the standard handling weight per person is supposed to be 30kg, about 2 persons are needed to carry a PVC cable according to the control group, whereas only about 1.53 persons are needed to carry a PVC cable surrounded by the outermost layer according to the present invention. As another example, when it is supposed that the same person carries a PVC cable, the PVC cable according to the control group will be moved 10m per hour, whereas the PVC cable surrounded by the outermost layer according to the present invention will be moved at a distance of more than 10m per hour.
Claims
1. A friction material composition comprising PVC and fatty acid amide, wherein it is used in coating an outermost layer of PVC electrical wire.
2. The friction material composition according to claim 1, characterized in that it comprises 5 to 15 parts by weight of the fatty acid amide, based on 100 parts by weight of the PVC.
3. The friction material composition according to claim 1, characterized in that the fatty acid amide is selected from the group consisting of oleamide, stearamide and oleyl palmitamide.
4. A PVC electrical wire, characterized in that the friction material composition according to claim 1 is coated on an outermost layer of the electrical wire.
5. Electric cable comprising a PVC electrical wire surrounded by a coating as outermost layer of the electric cable, characterized in that said coating is obtained from a friction material composition according to claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0158388 | 2012-12-31 | ||
| KR1020120158388A KR20140091110A (en) | 2012-12-31 | 2012-12-31 | Friction material composition for coating pvc electrical wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2014102602A2 true WO2014102602A2 (en) | 2014-07-03 |
| WO2014102602A3 WO2014102602A3 (en) | 2014-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2013/002993 WO2014102602A2 (en) | 2012-12-31 | 2013-12-06 | Friction material composition for coating pvc electrical wire |
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| Country | Link |
|---|---|
| KR (1) | KR20140091110A (en) |
| WO (1) | WO2014102602A2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10640696B2 (en) | 2017-08-15 | 2020-05-05 | Saudi Arabian Oil Company | Oil-based drilling fluids for high pressure and high temperature drilling operations |
| US10647903B2 (en) | 2017-08-15 | 2020-05-12 | Saudi Arabian Oil Company | Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers and amino amides as emulsifiers |
| US10676658B2 (en) | 2017-08-15 | 2020-06-09 | Saudi Arabian Oil Company | Oil-based drilling fluids for high pressure and high temperature drilling operations |
| US10745606B2 (en) | 2017-08-15 | 2020-08-18 | Saudi Arabian Oil Company | Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers |
| US10793762B2 (en) | 2017-08-15 | 2020-10-06 | Saudi Arabian Oil Company | Layered double hydroxides for oil-based drilling fluids |
| US10870788B2 (en) | 2017-08-15 | 2020-12-22 | Saudi Arabian Oil Company | Thermally stable surfactants for oil based drilling fluids |
| US10876039B2 (en) | 2017-08-15 | 2020-12-29 | Saudi Arabian Oil Company | Thermally stable surfactants for oil based drilling fluids |
| US10988659B2 (en) | 2017-08-15 | 2021-04-27 | Saudi Arabian Oil Company | Layered double hydroxides for oil-based drilling fluids |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100747932B1 (en) | 2006-02-15 | 2007-08-08 | 엘에스전선 주식회사 | Composition for manufacturing insulation materials of electrical wire and manufactured electrical wire using the same |
| KR20070093903A (en) | 2006-03-15 | 2007-09-19 | 넥쌍 | Electrical line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA772673A (en) * | 1967-11-28 | W.R. Grace And Co. | Torque control gasket-forming plastisols of vinyl chloride resins | |
| JPH08283502A (en) * | 1995-04-20 | 1996-10-29 | Sumitomo Wiring Syst Ltd | Polyvinyl chloride resin composition for wire covering |
| JP4430655B2 (en) * | 1996-01-11 | 2010-03-10 | タツタ電線株式会社 | Resin composition for cable jacket or air hose having bending resistance and low friction resistance |
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2012
- 2012-12-31 KR KR1020120158388A patent/KR20140091110A/en active Search and Examination
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2013
- 2013-12-06 WO PCT/IB2013/002993 patent/WO2014102602A2/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100747932B1 (en) | 2006-02-15 | 2007-08-08 | 엘에스전선 주식회사 | Composition for manufacturing insulation materials of electrical wire and manufactured electrical wire using the same |
| KR20070093903A (en) | 2006-03-15 | 2007-09-19 | 넥쌍 | Electrical line |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10640696B2 (en) | 2017-08-15 | 2020-05-05 | Saudi Arabian Oil Company | Oil-based drilling fluids for high pressure and high temperature drilling operations |
| US10647903B2 (en) | 2017-08-15 | 2020-05-12 | Saudi Arabian Oil Company | Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers and amino amides as emulsifiers |
| US10676658B2 (en) | 2017-08-15 | 2020-06-09 | Saudi Arabian Oil Company | Oil-based drilling fluids for high pressure and high temperature drilling operations |
| US10745606B2 (en) | 2017-08-15 | 2020-08-18 | Saudi Arabian Oil Company | Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers |
| US10793762B2 (en) | 2017-08-15 | 2020-10-06 | Saudi Arabian Oil Company | Layered double hydroxides for oil-based drilling fluids |
| US10870788B2 (en) | 2017-08-15 | 2020-12-22 | Saudi Arabian Oil Company | Thermally stable surfactants for oil based drilling fluids |
| US10876039B2 (en) | 2017-08-15 | 2020-12-29 | Saudi Arabian Oil Company | Thermally stable surfactants for oil based drilling fluids |
| US10954425B2 (en) | 2017-08-15 | 2021-03-23 | Saudi Arabian Oil Company | Oil-based drilling fluids for high pressure and high temperature drilling operations |
| US10988659B2 (en) | 2017-08-15 | 2021-04-27 | Saudi Arabian Oil Company | Layered double hydroxides for oil-based drilling fluids |
| US11034880B2 (en) | 2017-08-15 | 2021-06-15 | Saudi Arabian Oil Company | Oil-based drilling fluids for high pressure and high temperature drilling operations |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014102602A3 (en) | 2014-10-30 |
| KR20140091110A (en) | 2014-07-21 |
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