CN113482549A - Single-pipe wellhead flow device - Google Patents
Single-pipe wellhead flow device Download PDFInfo
- Publication number
- CN113482549A CN113482549A CN202110946007.2A CN202110946007A CN113482549A CN 113482549 A CN113482549 A CN 113482549A CN 202110946007 A CN202110946007 A CN 202110946007A CN 113482549 A CN113482549 A CN 113482549A
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- Prior art keywords
- sleeve
- oil
- plate
- seal plate
- flow device
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000003044 adaptive effect Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 68
- 238000005260 corrosion Methods 0.000 claims description 11
- 239000010687 lubricating oil Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000004880 explosion Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000003245 working effect 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a single-pipe wellhead flow device which comprises an oil conveying pipeline, wherein an oil outlet is formed in the top end of the oil conveying pipeline, a first sealing plate, a sealing rubber gasket and a second sealing plate are sequentially detachably sleeved on the surface of the oil conveying pipeline from top to bottom, and a protective sleeve assembly is detachably sleeved on the surface of the oil conveying pipeline; the second sealing plate comprises a fixing plate, an adaptive inner groove is formed in the surface of the fixing plate, threaded through holes are formed in the periphery of the fixing plate, a screw rod is sleeved on the inner threads of the threaded through holes, and a locking nut is installed at the other end of the screw rod in a threaded mode. In the above scheme, through setting up first closing plate, second closing plate and protective case subassembly, utilize its three mutually supporting for the device can fix first closing plate and second closing plate and protective case subassembly on oil pipeline's surface, and carry out work effect such as waterproof, resistance to compression, anticorrosion to protective case subassembly inside oil pipeline.
Description
Technical Field
The invention relates to the technical field of wellhead devices, in particular to a single-pipe wellhead flow device.
Background
Oil and gas extraction is a process of extracting oil, natural gas, and the like buried in an underground oil reservoir from the ground. The mode of exploiting oil and gas from underground to the ground can be divided into the following steps according to whether the energy is artificially supplemented to the well bore fluid: self-spraying and artificial lifting. The artificial lift oil production comprises: the gas lift oil recovery, the oil extraction of beam-pumping unit sucker rod pump, oil extraction of oily electric centrifugal pump, hydraulic piston pump oil recovery and jet pump oil recovery etc. wherein especially involve single-tube oil gas gathering and transportation flow, single-tube oil gas gathering and transportation flow mainly is: the oil gas is mixed and transported from the well mouth to the measuring station or the oil transfer station by a single pipeline, and some are provided with a heating device or a paraffin removal facility midway.
However, in practical use, there still exist some disadvantages, such as: the existing single-pipe oil gas gathering and transferring process adopts a single-pipe oil liquid transferring mode, so that the underground pressure born by a pipeline is very large, the accident of pipe explosion can happen at any time, the safety of the pipeline in working is greatly reduced, and meanwhile, after the pipe explosion accident happens, the scrapping of the well head is declared, and the economic benefit of the device is greatly reduced.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a single-pipe wellhead flow device, which aims to solve the problems that the underground pressure borne by a pipeline is very high due to the fact that a single-pipe oil-gas gathering and transferring flow in the prior art adopts a single-pipe oil-gas conveying mode, pipe explosion accidents can happen at any time, the safety of the pipeline in working is greatly reduced, and the abandonment of the wellhead is declared and the economy of the device is greatly reduced after the pipe explosion accidents happen.
In order to solve the technical problems, the invention provides the following technical scheme: the single-pipe wellhead flow device comprises an oil conveying pipeline, wherein an oil outlet is formed in the top end of the oil conveying pipeline, a first sealing plate, a sealing rubber gasket and a second sealing plate are sequentially detachably sleeved on the surface of the oil conveying pipeline from top to bottom, and a protective sleeve assembly is detachably sleeved on the surface of the oil conveying pipeline;
the second sealing plate comprises a fixing plate, an adaptive inner groove is formed in the surface of the fixing plate, threaded through holes are formed in the periphery of the fixing plate, a screw rod is sleeved on the inner threads of the threaded through holes, and a locking nut is installed at the other end of the screw rod in a threaded mode;
protective case subassembly includes the inner skleeve, the fixed surface of inner skleeve is connected with the buffer block, the fixed surface of buffer block has cup jointed the resistance to compression sleeve, the bar spout has been seted up on the telescopic surface of resistance to compression, the telescopic surface activity of resistance to compression has cup jointed the anticorrosion sleeve, the adaptation spout has been seted up on the telescopic inner wall surface of anticorrosion, the inside fixed mounting of inner skleeve has unable adjustment base, unable adjustment base's other end fixed mounting has spacing bottom piece, the other end of spacing bottom piece is inlayed and is installed conical spring, the deep trouth has been seted up to unable adjustment base's surface.
Wherein, the overall structure of first closing plate and second closing plate is the same, and first closing plate and second closing plate install respectively with the top and the bottom of protection sleeve subassembly, the relative side surface of first closing plate and second closing plate all supports tightly with the surface laminating of sealed cushion.
Wherein, the surface of sealed cushion is seted up the circular slot with oil pipeline looks adaptation, and the surface of sealed cushion is all smooth.
Wherein the screw rod penetrates through the interior of the first sealing plate and the second sealing plate until extending out from the surface of the second sealing plate, and the surface of the screw rod is uniformly coated with a layer of lubricating oil with the density of seven hundred to nine hundred fifty kilograms per cubic meter (kg/m).
The buffer blocks are distributed on the outer surface of the inner sleeve in a polar axis mode through the circle center of the inner sleeve, and the whole buffer blocks are made of elastic materials.
The material of the compression-resistant sleeve is an alloy material, the inner wall surface of the compression-resistant sleeve is smooth, and one end, close to the compression-resistant sleeve, of the strip-shaped chute on the surface of the compression-resistant sleeve is in a semicircular shape.
The outer surface of the anti-corrosion sleeve is uniformly coated with a layer of anti-corrosion coating, the thickness value range of the anti-corrosion sleeve is one centimeter to one point five centimeters, and no gap is formed between the anti-corrosion sleeve and the pressure-resistant sleeve.
The thickness value range of the limiting bottom block is one millimeter to three millimeters, the initial state of the conical spring is in a compressed state, and the thickness value of the conical spring after being compressed by eighty percent to ninety percent is smaller than the depth value range of the deep groove.
The technical scheme of the invention has the following beneficial effects:
among the above-mentioned scheme, through setting up first closing plate, second closing plate and protective case subassembly, utilize its three mutually support, make the device can fix first closing plate and second closing plate and protective case subassembly on oil pipeline's surface, and carry out working effect such as waterproof, resistance to compression, anticorrosion to its inside oil pipeline of protective case subassembly, the underground pressure who bears in effectively having avoided single-pipe oil pipeline oil transportation is very big, the accident of pipe explosion probably takes place at any time, the device's security effect and economic benefits have further been guaranteed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a perspective view of a second sealing plate according to the present invention;
FIG. 3 is a schematic view of a protective sleeve assembly according to the present invention;
FIG. 4 is a schematic view of the internal structure of the inner sleeve of the present invention;
FIG. 5 is a schematic cross-sectional view of a protective sleeve assembly of the present invention;
FIG. 6 is a partial schematic view of the inner sleeve of the present invention.
[ reference numerals ]
1. An oil pipeline; 2. an oil outlet; 3. a first sealing plate; 4. sealing the rubber gasket; 5. a second sealing plate; 51. a fixing plate; 52. adapting the inner groove; 53. a threaded through hole; 54. a screw; 55. locking the nut; 6. a protective sleeve assembly; 61. an inner sleeve; 62. a buffer block; 63. a compression-resistant sleeve; 64. a strip-shaped chute; 65. an anti-corrosion sleeve; 66. adapting the sliding chute; 67. a fixed base; 68. a limiting bottom block; 69. a conical spring; 610. and (4) deep grooves.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a single-pipe wellhead flow device as shown in the attached drawings 1-6, which comprises an oil pipeline 1, wherein an oil outlet 2 is formed in the top end of the oil pipeline 1, a first sealing plate 3, a sealing rubber gasket 4 and a second sealing plate 5 are sequentially detachably sleeved on the surface of the oil pipeline 1 from top to bottom, and a protective sleeve assembly 6 is detachably sleeved on the surface of the oil pipeline 1;
the second sealing plate 5 comprises a fixing plate 51, an adaptive inner groove 52 is formed in the surface of the fixing plate 51, a threaded through hole 53 is formed in the peripheral side of the fixing plate 51, a screw 54 is sleeved on the inner thread of the threaded through hole 53, and a locking nut 55 is installed at the other end of the screw 54 in a threaded manner;
The integral structures of the first sealing plate 3 and the second sealing plate 5 are the same, the first sealing plate 3 and the second sealing plate 5 are respectively arranged at the top end and the bottom end of the protective sleeve component 6, the opposite side surfaces of the first sealing plate 3 and the second sealing plate 5 are both attached and tightly abutted with the outer surface of the sealing rubber pad 4, the surface of the sealing rubber pad 4 is provided with a circular groove matched with the oil pipeline 1, the surface of the sealing rubber pad 4 is smooth, the screw rod 54 penetrates through the inner parts of the first sealing plate 3 and the second sealing plate 5 until extending out of the surface of the second sealing plate 5, the surface of the screw rod 54 is uniformly coated with a layer of lubricating oil liquid with the density of seven hundred to nine hundred fifty kilograms per cubic meter kg/m3, the number of the buffer blocks 62 is several, and the buffer blocks 62 are distributed on the outer surface of the inner sleeve 61 in a polar axis manner through the circle center of the inner sleeve 61, and the whole of buffer block 62 is made by elastic material, the material of resistance to compression sleeve 63 is alloy material, and the inner wall surface of resistance to compression sleeve 63 is all smooth, the one end that the bar spout 64 on resistance to compression sleeve 63 surface is close to resistance to compression sleeve 63 sets up to half circular shape, the surface of anticorrosion sleeve 65 evenly coats and has one deck anticorrosive coating, and the thickness value scope of anticorrosion sleeve 65 is one centimetre to one dot five centimetres, anticorrosion sleeve 65 does not have the space between resistance to compression sleeve 63.
As shown in fig. 1, the thickness of the limiting bottom block 68 ranges from one millimeter to three millimeters, the conical spring 69 is compressed in the initial state, and the depth of the conical spring 69 after being compressed by eighty percent to ninety percent is smaller than the depth of the deep groove 610.
Specifically, the thickness value of the conical spring 69 after being compressed by eighty percent to ninety percent is smaller than the depth value range of the deep groove 610, so that the conical spring 69 can be effectively contracted in the deep groove 610 on the surface of the fixing base 67, the fitting and firmness between the inner sleeve 61 and the conical spring 69 in the device are further ensured to be high, and the other end of the conical spring 69 is embedded in the peripheral side surface of the inner sleeve 61.
Wherein, the density of the lubricating oil evenly coated on the surface of the screw 54 is 700-950 kg/cubic meter (kg/m3), the density of the lubricating oil is also a performance index, the higher the density of the oil is, the higher the possibility of causing metal corrosion is, in the region of the lubricating system with turbulent oil flow, the oil with higher density can erode the contact parts of pipelines, oil ways, valves and the like, the density of most of the oil is 600-900 kg/cubic meter (kg/m3), and the density of the water is 1000 kg/cubic meter, therefore, most of the oil can float on the water surface, because the density is less than that of the water, if the oil has water, the free water of the lower layer can be discharged by screwing open oil plugs, but some of the oil is special, the density and the water difference are not much, or higher than the water, when the oil is mixed with the water, the oil is on the lower layer, the water is on the upper layer, for example, phosphate fire-resistant oil, the density of the lubricating oil is increased, the oil is thicker, and the effect on the practical use is that: because the oil is thicker and the settling speed of impurities in the oil is reduced, if impurities exist in the oil, the impurities can be settled in an oil tank for a longer time, a system with higher cleanliness requirement is more easily influenced, for example, a hydraulic system needs longer waiting time and is sensitive to the pollutants in the oil, and if the impurities are suspended in the oil for a long time, the problems of cavitation, fouling and corrosion of gaps among elements by the impurities and the like are more easily caused. The density of the lubricating oil is not constant, and the lubricating oil is oxidized along with the use, so that the viscosity of the lubricating oil is increased due to the oxidation, and the density of the lubricating oil is increased, and therefore the density of the oil which is selected to be coated on the outer surface of the screw 54 is 700-950 kilograms per cubic meter (kg/m 3).
The working process of the invention is as follows:
the first step is as follows: the operator first assembles the various components of the device normally and then starts the device normally.
The second step is that: firstly, the operating personnel cup joints first closing plate 3, sealed cushion 4, the surface department in oil pipeline 1 is cup jointed in the activity of second closing plate 5 and protective case subassembly 6, and guarantee that the surface laminating of the first closing plate 3 of the relative terminal surface of two protective case subassemblies 6 and second closing plate 5 is supported tightly together, run through the inside of first closing plate 3 and second closing plate 5 through screw rod 54 this moment and extend out from the surface of second closing plate 5, and in lock nut 55 screw thread locking installation together, and then fix first closing plate 3 and second closing plate 5 and protective case subassembly 6 on oil pipeline 1's surface, operating personnel installs oil pipeline under the ground through the oil well mouth and carries out normal oil transportation working process, can.
The third step: the operator first closes the device normally, then checks whether the fixity between the various components of the device is normal, and then replaces and repairs the more aged and worn parts inside the device.
Above-mentioned scheme, through setting up first closing plate 3, second closing plate 5 and protective case subassembly 6, utilize its three's mutually supporting, make the device can fix first closing plate 3 and second closing plate 5 and protective case subassembly 6 on the surface of oil pipeline 1, and carry out work effect such as waterproof, resistance to compression, anticorrosion to protective case subassembly 6 inside oil pipeline 1, the underground pressure who bears in effectively having avoided single tube oil pipeline 1 oil transportation is very big, the accident of pipe explosion probably takes place at any time, the safety effect and the economic benefits of the device have further been guaranteed.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The single-pipe wellhead flow device comprises an oil conveying pipeline (1), wherein an oil outlet (2) is formed in the top end of the oil conveying pipeline (1), and is characterized in that a first sealing plate (3), a sealing rubber gasket (4) and a second sealing plate (5) are sequentially detachably sleeved on the surface of the oil conveying pipeline (1) from top to bottom, and a protective sleeve assembly (6) is detachably sleeved on the surface of the oil conveying pipeline (1);
the second sealing plate (5) comprises a fixing plate (51), an adaptive inner groove (52) is formed in the surface of the fixing plate (51), a threaded through hole (53) is formed in the peripheral side of the fixing plate (51), a screw rod (54) is sleeved on the inner thread of the threaded through hole (53), and a locking nut (55) is installed at the other end of the screw rod (54) in a threaded manner;
protection sleeve subassembly (6) include inner skleeve (61), the fixed surface of inner skleeve (61) is connected with buffer block (62), the fixed surface of buffer block (62) has cup jointed resistance to compression sleeve (63), bar spout (64) have been seted up on the surface of resistance to compression sleeve (63), the surface activity of resistance to compression sleeve (63) has cup jointed anticorrosion sleeve (65), adaptation spout (66) have been seted up on the inner wall surface of anticorrosion sleeve (65), the inside fixed mounting of inner skleeve (61) has unable adjustment base (67), the other end fixed mounting of unable adjustment base (67) has spacing bottom block (68), conical spring (69) have been installed to the other end of spacing bottom block (68) inlay, deep trouth (610) have been seted up to the surface of unable adjustment base (67).
2. The single wellhead process device according to claim 1, characterized in that the first seal plate (3) and the second seal plate (5) have the same integral structure, the first seal plate (3) and the second seal plate (5) are respectively installed at the top end and the bottom end of the protective sleeve assembly (6), and the opposite side surfaces of the first seal plate (3) and the second seal plate (5) are tightly attached to the outer surface of the sealing rubber gasket (4).
3. The single-pipe wellhead process device according to claim 1, characterized in that a circular groove matched with the oil pipeline (1) is formed on the surface of the sealing rubber gasket (4), and the surface of the sealing rubber gasket (4) is smooth.
4. The single wellhead flow device according to claim 1 wherein the screw (54) extends through the interior of the first seal plate (3) and the second seal plate (5) to extend from the surface of the second seal plate (5) and the surface of the screw (54) is uniformly coated with a layer of lubricating oil having a density of seven hundred to nine hundred fifty kilograms per cubic meter (kg/m 3).
5. The single wellhead flow device according to claim 1, characterized in that the number of the buffer blocks (62) is several, the several buffer blocks (62) are distributed at the outer surface of the inner sleeve (61) in a polar axis manner through the circle center of the inner sleeve (61), and the whole of the buffer blocks (62) is made of elastic material.
6. The single wellhead flow device according to claim 1, characterized in that the pressure resistant sleeve (63) is made of alloy material, the inner wall surface of the pressure resistant sleeve (63) is smooth, and one end of the strip-shaped sliding groove (64) on the surface of the pressure resistant sleeve (63) close to the pressure resistant sleeve (63) is arranged to be semicircular.
7. The single wellhead flow device according to claim 1, characterised in that the outer surface of the corrosion protection sleeve (65) is evenly coated with a layer of corrosion protection coating, and the thickness value of the corrosion protection sleeve (65) ranges from one centimetre to one and a half centimetres, the corrosion protection sleeve (65) having no gap between the pressure resistance sleeve (63).
8. The single pipe wellhead flow device according to claim 1 wherein the thickness of the stop bottom block (68) ranges from one millimeter to three millimeters, the conical spring (69) is initially compressed, and the conical spring (69) is compressed eighty percent to ninety percent to a depth value less than the depth value of the deep slot (610).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110946007.2A CN113482549A (en) | 2021-08-18 | 2021-08-18 | Single-pipe wellhead flow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110946007.2A CN113482549A (en) | 2021-08-18 | 2021-08-18 | Single-pipe wellhead flow device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113482549A true CN113482549A (en) | 2021-10-08 |
Family
ID=77946783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110946007.2A Withdrawn CN113482549A (en) | 2021-08-18 | 2021-08-18 | Single-pipe wellhead flow device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113482549A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233234A (en) * | 2022-02-24 | 2022-03-25 | 东营愉沁石油科技有限公司 | Single-pipe flow combined wellhead device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5253713A (en) * | 1991-03-19 | 1993-10-19 | Belden & Blake Corporation | Gas and oil well interface tool and intelligent controller |
| CN208073404U (en) * | 2018-01-21 | 2018-11-09 | 江苏苏盐阀门机械有限公司 | A kind of wellhead assembly of anti-impact pressure valve |
| CN210068049U (en) * | 2019-06-02 | 2020-02-14 | 东营市金亿来石油机械有限公司 | Oil extraction well head with good sealing effect |
| CN210685913U (en) * | 2019-09-26 | 2020-06-05 | 许克新 | Oil recovery oil well wellhead sealing device |
| CN111852376A (en) * | 2020-07-20 | 2020-10-30 | 席小平 | Well head and sealing protection device |
| CN111927372A (en) * | 2020-08-04 | 2020-11-13 | 华运隆腾机械制造有限公司 | Oil field multistage sealing wellhead assembly |
| CN212054538U (en) * | 2020-04-01 | 2020-12-01 | 黑龙江省格泰科技开发有限公司 | Conduction type centralizer |
| CN212131577U (en) * | 2020-05-15 | 2020-12-11 | 福建万联塑胶有限公司 | Resistance to compression type PVC tubular product |
| CN212671717U (en) * | 2020-07-24 | 2021-03-09 | 江天科技有限公司 | Well head with pressure buffering |
| CN213333090U (en) * | 2020-09-23 | 2021-06-01 | 铁氟龙防腐科技(江苏)有限公司 | Protective structure for anti-corrosion equipment |
-
2021
- 2021-08-18 CN CN202110946007.2A patent/CN113482549A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5253713A (en) * | 1991-03-19 | 1993-10-19 | Belden & Blake Corporation | Gas and oil well interface tool and intelligent controller |
| CN208073404U (en) * | 2018-01-21 | 2018-11-09 | 江苏苏盐阀门机械有限公司 | A kind of wellhead assembly of anti-impact pressure valve |
| CN210068049U (en) * | 2019-06-02 | 2020-02-14 | 东营市金亿来石油机械有限公司 | Oil extraction well head with good sealing effect |
| CN210685913U (en) * | 2019-09-26 | 2020-06-05 | 许克新 | Oil recovery oil well wellhead sealing device |
| CN212054538U (en) * | 2020-04-01 | 2020-12-01 | 黑龙江省格泰科技开发有限公司 | Conduction type centralizer |
| CN212131577U (en) * | 2020-05-15 | 2020-12-11 | 福建万联塑胶有限公司 | Resistance to compression type PVC tubular product |
| CN111852376A (en) * | 2020-07-20 | 2020-10-30 | 席小平 | Well head and sealing protection device |
| CN212671717U (en) * | 2020-07-24 | 2021-03-09 | 江天科技有限公司 | Well head with pressure buffering |
| CN111927372A (en) * | 2020-08-04 | 2020-11-13 | 华运隆腾机械制造有限公司 | Oil field multistage sealing wellhead assembly |
| CN213333090U (en) * | 2020-09-23 | 2021-06-01 | 铁氟龙防腐科技(江苏)有限公司 | Protective structure for anti-corrosion equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233234A (en) * | 2022-02-24 | 2022-03-25 | 东营愉沁石油科技有限公司 | Single-pipe flow combined wellhead device |
| CN114233234B (en) * | 2022-02-24 | 2022-04-26 | 东营愉沁石油科技有限公司 | Single-pipe flow combined wellhead device |
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Application publication date: 20211008 |
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| WW01 | Invention patent application withdrawn after publication |