CN114165185A - Oil drilling blowout preventer and using method thereof - Google Patents
Oil drilling blowout preventer and using method thereof Download PDFInfo
- Publication number
- CN114165185A CN114165185A CN202111511061.0A CN202111511061A CN114165185A CN 114165185 A CN114165185 A CN 114165185A CN 202111511061 A CN202111511061 A CN 202111511061A CN 114165185 A CN114165185 A CN 114165185A
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- CN
- China
- Prior art keywords
- blowout preventer
- device shell
- inner ring
- fixedly connected
- activated carbon
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229920000742 Cotton Polymers 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- QBWKPGNFQQJGFY-QLFBSQMISA-N 3-[(1r)-1-[(2r,6s)-2,6-dimethylmorpholin-4-yl]ethyl]-n-[6-methyl-3-(1h-pyrazol-4-yl)imidazo[1,2-a]pyrazin-8-yl]-1,2-thiazol-5-amine Chemical compound N1([C@H](C)C2=NSC(NC=3C4=NC=C(N4C=C(C)N=3)C3=CNN=C3)=C2)C[C@H](C)O[C@H](C)C1 QBWKPGNFQQJGFY-QLFBSQMISA-N 0.000 description 3
- 229940125846 compound 25 Drugs 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an oil drilling blowout preventer and a using method thereof, relating to the technical field of oil exploitation and comprising a device shell; the connecting rod is fixedly connected with the device shell and is positioned on the outer wall of the device shell; the connecting pipeline is fixedly connected with the device shell and is positioned on the inner wall of the device shell; the filtering structure is fixedly connected with the connecting pipeline and is positioned on the inner wall of the connecting pipeline; and the heating structure is fixedly connected with the device shell and is positioned in the device shell. According to the invention, the filter structure is arranged in the connecting pipeline, impurities in oil can be effectively filtered through the activated carbon layer and the filter cotton layer, the pipeline opening is prevented from being blocked by the impurities, and the filter screen cover is conveniently and rapidly detached through the arranged fixing structure, so that convenience is brought to petroleum drilling and better use prospect is brought.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to an oil drilling blowout preventer and a using method thereof.
Background
The blowout preventer is used for closing a well mouth in the operation processes of oil testing, well repairing, well completion and the like to prevent blowout accidents, integrates two functions of full sealing and half sealing, has the characteristics of simple structure, easy operation, high pressure resistance and the like, is a well mouth safety sealing device for preventing blowout commonly used in oil fields, realizes the opening and closing of the blowout preventer by utilizing high-pressure oil through a hydraulic cylinder, and has the advantages that the oil path of the blowout preventer is easily blocked by impurities in the high-pressure oil in the use process, so that the high-pressure oil needs to be filtered by using a filtering device, the existing filtering device is inconvenient to install, a filter screen is inconvenient to disassemble and replace, and the blowout preventer is inconvenient to use.
Disclosure of Invention
Technical problem to be solved
In view of the shortcomings of the prior art, the present invention provides a blowout preventer for oil drilling and a method for using the same, so as to solve the problems presented in the background art.
(II) technical scheme
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: an oil drilling blowout preventer comprising a device housing;
the connecting rod is fixedly connected with the device shell, and the connecting rod is positioned on the outer wall of the device shell;
the connecting pipeline is fixedly connected with the device shell and is positioned on the inner wall of the device shell;
the filter structure is fixedly connected with the connecting pipeline and is positioned on the inner wall of the connecting pipeline;
and the heating structure is fixedly connected with the device shell and is positioned in the device shell.
Preferably, the filtration includes fixed outer loop, the inner wall of fixed outer loop rotates and is connected with a plurality of running gear, a plurality of running gear's outer wall meshing is connected with the rotation inner ring, running gear's last fixed surface is connected with the dwang, the upper surface of dwang and the rotation output shaft fixed connection of motor.
Preferably, the inner wall fixedly connected with that rotates the inner ring filters cotton layer and active carbon layer, it is located the top on active carbon layer to filter cotton layer, the inside that rotates the inner ring is provided with fixed knot and constructs, active carbon layer and filter cotton layer pass through fixed knot and rotate inner ring fixed connection.
Preferably, the inner side surface of the rotating inner ring is provided with a placing hole groove, the inside of the placing hole groove is fixedly connected with a spring, one end of the spring, which is far away from the placing hole groove, is fixedly connected with a placing block, the inner side surface of the rotating inner ring is provided with a connecting block, the connecting block is fixedly connected with a filtering cotton layer, the connecting block is fixedly connected with an activated carbon layer, the outer side surface of the placing block is provided with a fixing screw, the placing block is provided with a passing groove for the fixing screw to move, and the connecting block is fixedly connected with the placing block through the fixing screw.
Preferably, the heating structure includes the terminal, the last fixed surface of terminal is connected with the heating wire, the lower fixed surface of terminal is connected with the gasket, the last fixed surface of gasket is connected with the protecting tube, the inside fixedly connected with high-temperature ceramics and the sealing compound of protecting tube, high-temperature ceramics is located the upper portion of protecting tube, the sealing compound is located the lower part of protecting tube, the sealing compound contacts with the gasket.
A method of using an oil drilling blowout preventer, the steps of using comprising:
s1: placing a filter screen cover in the pipeline, pressing a placing block with a hand below the blowout preventer by a user, picking up the filter cotton layer and the activated carbon layer, placing the filter cotton layer and the activated carbon layer in the rotating inner ring, then loosening the hand, popping up the placing block, and supporting and fixing the filter cotton layer and the activated carbon layer;
s2: firmly fixing the internal structure, picking up the fixing screw, aligning the fixing screw with the internal hole groove, and fixing the fixing screw in the connecting block by using a screwdriver for rotation;
s3: placing equipment, placing the blowout preventer on a working site, installing and fixing the blowout preventer, and starting the equipment;
s4: the filter layer rotates at a uniform speed, the motor rotates to drive the rotating rod to rotate, the rotating rod drives the rotating gear to rotate to drive the rotating inner ring to rotate at a uniform speed.
Preferably, the filter cotton layer is installed above the activated carbon layer, and the mesh cover is detached in the above-mentioned steps of S1 and S2.
Preferably, the length of the fixing screw is longer than that of the placing block, and the fixing screw is a hexagonal screw.
Preferably, the lower end of the blowout preventer is placed at a wellhead.
(III) advantageous effects
The invention has the beneficial effects that:
1. this oil drilling preventer and application method thereof is provided with filtration in the connecting tube, through active carbon layer and filter cotton layer, can effectively filter the impurity in the deoiling, prevents that impurity from taking place the condition of pipeline mouth jam to through the fixed knot who sets up structure, fixed dismantlement mode convenient and fast conveniently filters the dismantlement of screen panel, and it is convenient to bring for oil drilling.
2. According to the oil drilling blowout preventer and the using method thereof, the heating structure is arranged in the device shell, the binding post is electrically connected with the power supply, the electric heating wire above the binding post generates heat under the control of a user to heat the inside of the device shell, the temperature of the device can be kept in a severe cold season, and the situation that internal elements of the device are frozen due to severe cold is prevented.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a structural diagram of the present invention;
FIG. 3 is a schematic diagram of a filter structure according to the present invention;
FIG. 4 is a top exploded view of the filter structure of the present invention;
FIG. 5 is an enlarged, exploded view taken at A in FIG. 3 according to the present invention;
FIG. 6 is a schematic diagram of a heating structure according to the present invention;
FIG. 7 is a diagram of the steps of the present invention.
In the figure: 1. a connecting rod; 2. a device housing; 3. connecting a pipeline; 4. a filter structure; 5. a heating structure; 6. rotating the rod; 7. a rotating gear; 8. fixing the outer ring; 9. rotating the inner ring; 10. a filter cotton layer; 11. an activated carbon layer; 12. a fixed structure; 13. fixing screws; 16. placing the block; 17. placing a hole groove; 18. a spring; 19. connecting blocks; 21. high temperature ceramics; 22. sheathing a pipe; 23. an electric heating wire; 24. a binding post; 25. sealing glue; 26. and (7) a gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, the present invention provides a technical solution: an oil drilling blowout preventer comprises a device housing 2;
the connecting rod 1, the connecting rod 1 is fixedly connected with the device shell 2, and the connecting rod 1 is positioned on the outer wall of the device shell 2;
the connecting pipeline 3 is fixedly connected with the device shell 2, and the connecting pipeline 3 is positioned on the inner wall of the device shell 2;
the filter structure 4 is fixedly connected with the connecting pipeline 3, and the filter structure 4 is positioned on the inner wall of the connecting pipeline 3;
and the heating structure 5 is fixedly connected with the device shell 2, and the heating structure 5 is positioned inside the device shell 2.
Further, filtration 4 is including fixed outer loop 8, and the inner wall of fixed outer loop 8 rotates and is connected with a plurality of slewing gear 7, and the outer wall meshing of a plurality of slewing gear 7 is connected with rotates inner ring 9, and slewing gear 7's last fixed surface is connected with dwang 6, the upper surface of dwang 6 and the rotation output shaft fixed connection of motor.
Further, the inner wall fixedly connected with of rotating inner ring 9 filters cotton layer 10 and activated carbon layer 11, filters cotton layer 10 and is located activated carbon layer 11's top, and the inside of rotating inner ring 9 is provided with fixed knot and constructs 12, and activated carbon layer 11 passes through fixed knot and constructs 12 with the fixed connection of rotating inner ring 9 with filtering cotton layer 10.
Further, the medial surface that rotates inner ring 9 has been seted up and has been place hole groove 17, place the inside fixedly connected with spring 18 of hole groove 17, spring 18 keeps away from the one end fixedly connected with that places hole groove 17 and places piece 16, the medial surface that rotates inner ring 9 is provided with connecting block 19, connecting block 19 and filter cotton layer 10 fixed connection, connecting block 19 and 11 fixed connection on the active carbon layer, the lateral surface that places piece 16 is provided with set screw 13, place and set up the groove of crossing that supplies the activity of set screw 13 on the piece 16, connecting block 19 passes through set screw 13 and places piece 16 fixed connection.
Further, heating structure 5 includes terminal 24, and the last fixed surface of terminal 24 is connected with heating wire 23, and the lower fixed surface of terminal 24 is connected with gasket 26, and the last fixed surface of gasket 26 is connected with protecting pipe 22, and the inside fixedly connected with high temperature pottery 21 and the sealing compound 25 of protecting pipe 22, high temperature pottery 21 are located the upper portion of protecting pipe 22, and sealing compound 25 is located the lower part of protecting pipe 22, and sealing compound 25 and gasket 26 contact.
A method of using an oil drilling blowout preventer, the steps of using comprising:
s1: placing a filter screen cover in the pipeline, pressing the placing block 16 by a user with hands below the blowout preventer, picking up the filter cotton layer 10 and the activated carbon layer 11, placing the filter cotton layer 10 and the activated carbon layer 11 in the rotating inner ring 9, then loosening the hands, popping up the placing block 16, and supporting and fixing the filter cotton layer 10 and the activated carbon layer 11;
s2: firmly fixing the internal structure, taking up the fixing screw 13, aligning the fixing screw 13 with the internal hole groove, and rotating by using a screwdriver to fix the fixing screw 13 in the connecting block 19;
s3: placing equipment, placing the blowout preventer on a working site, installing and fixing the blowout preventer, and starting the equipment;
s4: the filter layer rotates at a uniform speed, the motor rotates to drive the rotating rod 6 to rotate, the rotating rod 6 drives the rotating gear 7 to rotate, the rotating inner ring 9 is driven to rotate, and the rotating inner ring 9 rotates at a uniform speed.
Further, the filter cotton layer 10 is installed above the activated carbon layer 11, and the manner of detaching the net cover is the above-mentioned steps of S1 and S2.
Further, the length of the fixed screw 13 is long, the fixed screw 13 is a hexagonal screw, and the lower end of the blowout preventer is placed at a wellhead, and the placement block 16 is arranged on the lower end of the blowout preventer.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An oil drilling blowout preventer, characterized in that: comprises a device shell (2);
the connecting rod (1), the connecting rod (1) is fixedly connected with the device shell (2), and the connecting rod (1) is positioned on the outer wall of the device shell (2);
the connecting pipeline (3) is fixedly connected with the device shell (2), and the connecting pipeline (3) is positioned on the inner wall of the device shell (2);
the filter structure (4) is fixedly connected with the connecting pipeline (3), and the filter structure (4) is positioned on the inner wall of the connecting pipeline (3);
heating structure (5), heating structure (5) and device shell (2) fixed connection, heating structure (5) are located the inside of device shell (2).
2. The blowout preventer of claim 1, wherein: filtration (4) are including fixed outer loop (8), the inner wall of fixed outer loop (8) rotates and is connected with a plurality of rotating gear (7), the outer wall meshing of a plurality of rotating gear (7) is connected with rotates inner ring (9), the last fixed surface of rotating gear (7) is connected with dwang (6), the upper surface of dwang (6) and the rotation output shaft fixed connection of motor.
3. The blowout preventer of claim 2, wherein: the inner wall fixedly connected with that rotates inner ring (9) filters cotton layer (10) and activated carbon layer (11), it is located the top on activated carbon layer (11) to filter cotton layer (10), the inside that rotates inner ring (9) is provided with fixed knot and constructs (12), activated carbon layer (11) and filter cotton layer (10) are through fixed knot construct (12) and rotate inner ring (9) fixed connection.
4. The blowout preventer of claim 3, wherein: the utility model discloses a filter element, including rotation inner ring (9), the medial surface of rotating inner ring (9) has been seted up and has been place hole groove (17), place inside fixedly connected with spring (18) of hole groove (17), spring (18) are kept away from the one end fixedly connected with who places hole groove (17) and are place piece (16), the medial surface of rotating inner ring (9) is provided with connecting block (19), connecting block (19) and filtration cotton layer (10) fixed connection, connecting block (19) and activated carbon layer (11) fixed connection, the lateral surface of placing piece (16) is provided with set screw (13), set up the groove of crossing that supplies set screw (13) activity on placing piece (16), connecting block (19) are through set screw (13) and place piece (16) fixed connection.
5. The blowout preventer of claim 1, wherein: heating structure (5) include terminal (24), the last fixed surface of terminal (24) is connected with heating wire (23), the lower fixed surface of terminal (24) is connected with gasket (26), the last fixed surface of gasket (26) is connected with protecting pipe (22), the inside fixedly connected with high temperature ceramics (21) of protecting pipe (22) with seal gum (25), high temperature ceramics (21) are located the upper portion of protecting pipe (22), seal gum (25) are located the lower part of protecting pipe (22), seal gum (25) and gasket (26) contact.
6. A method of using an oil drilling blowout preventer, the method comprising the steps of:
s1: a filter screen cover is placed in the pipeline, a user presses the placing block (16) with a hand below the blowout preventer, picks up the filter cotton layer (10) and the activated carbon layer (11), places the filter cotton layer (10) and the activated carbon layer (11) in the rotating inner ring (9), then releases the hand, ejects the placing block (16), and lifts and fixes the filter cotton layer (10) and the activated carbon layer (11);
s2: firmly fixing the internal structure, picking up the fixing screw (13), aligning the fixing screw with the internal hole groove, and fixing the fixing screw (13) in the connecting block (19) by using a screwdriver for rotation;
s3: placing equipment, placing the blowout preventer on a working site, installing and fixing the blowout preventer, and starting the equipment;
s4: the filter layer rotates at the uniform speed, the motor rotates to drive the rotating rod (6) to rotate, the rotating rod (6) drives the rotating gear (7) to rotate to drive the rotating inner ring (9), and the rotating inner ring (9) rotates at the uniform speed.
7. The method of using an oil drilling blowout preventer of claim 6, wherein: the filter cotton layer (10) is arranged above the activated carbon layer (11), and the net cover is detached in the way of the steps of S1 and S2 upside down.
8. The method of using an oil drilling blowout preventer of claim 6, wherein: the length of the fixing screw (13) is long, the fixing screw is a placing block (16), and the fixing screw (13) is a hexagonal screw.
9. The method of using an oil drilling blowout preventer of claim 6, wherein: the lower end of the blowout preventer is placed at the wellhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511061.0A CN114165185A (en) | 2021-12-10 | 2021-12-10 | Oil drilling blowout preventer and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511061.0A CN114165185A (en) | 2021-12-10 | 2021-12-10 | Oil drilling blowout preventer and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114165185A true CN114165185A (en) | 2022-03-11 |
Family
ID=80485643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111511061.0A Pending CN114165185A (en) | 2021-12-10 | 2021-12-10 | Oil drilling blowout preventer and using method thereof |
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| Country | Link |
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| CN (1) | CN114165185A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2164585C2 (en) * | 1999-06-10 | 2001-03-27 | Открытое акционерное общество "Станкотехника" АК "Туламашзавод" | Preventer |
| CN204082076U (en) * | 2014-08-02 | 2015-01-07 | 孟凡市 | Oil preventer supporting protection device |
| RU168626U1 (en) * | 2016-10-18 | 2017-02-13 | ООО "Производственная Инжиниринговая Компания "НЕФТЬ" | PREVENTOR |
| CN208934644U (en) * | 2018-09-11 | 2019-06-04 | 盐城市琪航石油机械有限公司 | A kind of preventer electrical heat tracing device |
| CN212746566U (en) * | 2020-07-10 | 2021-03-19 | 深圳市发利机械设备结构有限公司 | Automatic ignition device for marine drilling platform combustor |
| CN214693554U (en) * | 2021-01-07 | 2021-11-12 | 四川蓝梵环保科技有限公司 | Sewage treatment device for cleaning petroleum drilling equipment |
| CN113669027A (en) * | 2021-09-13 | 2021-11-19 | 范金凤 | Auxiliary sealing device for single-gate blowout preventer |
-
2021
- 2021-12-10 CN CN202111511061.0A patent/CN114165185A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2164585C2 (en) * | 1999-06-10 | 2001-03-27 | Открытое акционерное общество "Станкотехника" АК "Туламашзавод" | Preventer |
| CN204082076U (en) * | 2014-08-02 | 2015-01-07 | 孟凡市 | Oil preventer supporting protection device |
| RU168626U1 (en) * | 2016-10-18 | 2017-02-13 | ООО "Производственная Инжиниринговая Компания "НЕФТЬ" | PREVENTOR |
| CN208934644U (en) * | 2018-09-11 | 2019-06-04 | 盐城市琪航石油机械有限公司 | A kind of preventer electrical heat tracing device |
| CN212746566U (en) * | 2020-07-10 | 2021-03-19 | 深圳市发利机械设备结构有限公司 | Automatic ignition device for marine drilling platform combustor |
| CN214693554U (en) * | 2021-01-07 | 2021-11-12 | 四川蓝梵环保科技有限公司 | Sewage treatment device for cleaning petroleum drilling equipment |
| CN113669027A (en) * | 2021-09-13 | 2021-11-19 | 范金凤 | Auxiliary sealing device for single-gate blowout preventer |
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