CN117514125B - High-pressure oil extraction wellhead capable of preventing sand and removing sand - Google Patents
High-pressure oil extraction wellhead capable of preventing sand and removing sand Download PDFInfo
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- CN117514125B CN117514125B CN202410021004.1A CN202410021004A CN117514125B CN 117514125 B CN117514125 B CN 117514125B CN 202410021004 A CN202410021004 A CN 202410021004A CN 117514125 B CN117514125 B CN 117514125B
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- 239000004576 sand Substances 0.000 title claims abstract description 204
- 238000000605 extraction Methods 0.000 title abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 238000010009 beating Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 2
- 238000010407 vacuum cleaning Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 19
- 239000003921 oil Substances 0.000 description 102
- 238000007790 scraping Methods 0.000 description 19
- 239000003208 petroleum Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001632 homeopathic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Classifications
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- 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
-
- 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
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/35—Arrangements for separating materials produced by the well specially adapted for separating solids
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- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a high-pressure oil extraction wellhead capable of preventing sand and removing sand, which relates to the technical field of high-pressure oil extraction and comprises a main oil pipe, wherein a control valve is arranged in the middle of the outer surface of the main oil pipe and used for controlling the opening and closing of the main oil pipe, the high-pressure oil extraction wellhead further comprises a first sand prevention pipe fitting which is arranged at the top of the main oil pipe in a flange mode, the first sand prevention pipe fitting comprises a first fat pipe, a first connecting pipe is fixedly connected to the middle position of the bottom of the first fat pipe, and a bottom flange of the first connecting pipe is arranged at the top of the main oil pipe. This but sand control degritting's high pressure oil recovery well head can alleviate the total amount that sand got into screen pipe filter screen assembly among the prior art, lightens screen pipe filter screen assembly and gets rid of the work total amount of sand, reduces the frequency to the inside clearance of screen pipe filter screen assembly among the prior art, prolongs screen pipe filter screen assembly and combines the effective filtration cycle of my oil recovery well to the sand-bearing oil to and improve the collection treatment efficiency of oil recovery well to the sand-bearing oil.
Description
Technical Field
The invention relates to the technical field of high-pressure oil extraction, in particular to a high-pressure oil extraction wellhead capable of preventing sand and removing sand.
Background
Along with the high-speed development of national economy in China, the needed electric power and crude oil are multiplied, valves for controlling steam pipelines are more and more, meanwhile, more and more thick oil fields are developed and built, because thick oil has high density and hardening, high-temperature and high-pressure steam is required to be injected to melt thick oil, meanwhile, the content of corrosive substances such as sulfides in crude oil is high, a complete set of equipment mainly comprising valves at a wellhead plays a key role, the high-temperature and high-pressure steam is injected through the valves to melt thick oil, and the high-temperature and high-pressure wellhead thermal recovery valve is specially designed and manufactured according to the working conditions of the thick oil thermal recovery and the high-temperature and high-pressure steam transmission oil recovery pipeline.
The sand prevention measures of the existing oil production wellhead are mainly screen pipe filter screen sand prevention methods, sand in sand-containing petroleum is removed by utilizing a screen pipe filter screen sand prevention device in the prior art, however, the method is to directly remove a large amount of sand in an oil layer, the sand removal effect is not large although the sand can be removed, the sand removal capability castings are weakened along with the time, the filter structure in the screen pipe filter screen sand prevention device needs to be frequently cleaned and replaced, the whole sand removal workload of the screen pipe filter screen sand prevention device is huge, the abrasion degree of the internal structure is accelerated, the effective filtering period of the sand-containing petroleum is short, and the sand treatment efficiency is low.
Disclosure of Invention
In order to achieve the above purpose, the invention is realized by the following technical scheme: the high-pressure oil extraction wellhead capable of preventing sand and removing sand comprises a main oil pipe, wherein a control valve is arranged in the middle of the outer surface of the main oil pipe and used for controlling the opening and closing of the main oil pipe;
the sand control pipe fitting comprises a main oil pipe, wherein the main oil pipe is provided with a flange, the flange is arranged at the top of the main oil pipe, the sand control pipe fitting comprises a first fat pipe, a first connecting pipe is fixedly connected to the middle position of the bottom of the first fat pipe, the flange at the bottom of the first connecting pipe is arranged at the top of the main oil pipe, and the top of the outer surface of the first fat pipe is symmetrically provided with a beating piece;
a first necking part is arranged on the inner side top wall surface of the first fat pipe in a circular array, a first wall protrusion is arranged on the inner side wall surface of the first fat pipe, the first wall protrusion is arranged between the first connecting pipe and the first necking part, and the first wall protrusion is formed by two concentric circles on the same horizontal plane;
a controller is arranged on the outer wall surface of the first fat pipe and near the first connecting pipe, a crescent ridge plate is attached to the inner wall surface of the first fat pipe, and the crescent ridge plate is integrally and limitedly arranged between two concentric circles;
the second sand control pipe fitting comprises a second fat pipe, the middle position of the top of the second fat pipe is connected with the middle position of the top of the first fat pipe, the two are connected into a whole, a threaded pipe is arranged at the middle position of the top of the second fat pipe in a threaded manner, a supporting pipe is connected between the outer surfaces of the first fat pipe and the second fat pipe, the bottom of the second fat pipe can be supported, and the inner diameter of the top end opening of the inner side of the second fat pipe is smaller than the inner diameter of the top end opening of the inner side of the first fat pipe;
the sand removal assembly is symmetrically arranged at the bottom of the outer surface of the first sand prevention pipe fitting, the sand removal assembly comprises a thick pipe fixedly connected at the bottom of the outer surface of the first fat pipe, a sand filtering core sleeve is embedded in the middle of the inner side of the thick pipe, a cover body is arranged at the bottom of the thick pipe, a shaft rod is fixedly connected to the side of the outer surface of the cover body, a ring clamping body is hinged to the outer surface of the cover body through the shaft rod, the bottom of the thick pipe is clamped with the top of the cover body through the ring clamping body, and the bottom of the thick pipe is in sealing fit with the top of the cover body.
Preferably, the first electromagnets are mounted at two ends of the crescent ridge plate, which are in contact with the inner side wall surface of the first fat pipe, the magnetic surfaces of the first electromagnets are mounted in the crescent ridge plate in an inclined embedded manner, the first strong magnets are mounted in the inner wall of the first fat pipe in an embedded manner in a circular array, the magnetic surfaces of the first strong magnets are opposite to the first electromagnets in an inclined manner, the magnetic forces of the first strong magnets and the first electromagnets repel each other, and the first strong magnets can be controlled to be electrified, magnetized and demagnetized clockwise or anticlockwise sequentially by the controller, so that tangential thrust in a rotating direction of the crescent ridge plate in an inclined direction is provided, the crescent ridge plate is continuously pushed to rotate at the inner side of the first fat pipe, and sand attached to the inner wall of the first fat pipe is scraped by the crescent ridge plate and scraped into the inner side of the fat pipe.
Preferably, the beating member comprises a falling pipe, the falling pipe is symmetrically connected between the first sand prevention pipe fitting and the second sand prevention pipe fitting, the first fat pipe is communicated with the second fat pipe through the falling pipe, the top of the falling pipe is fixedly connected to the outer surface of the second fat pipe, the bottom of the falling pipe is fixedly connected to the outer surface of the first fat pipe, the outer surface of the falling pipe is sleeved with a swinging ring, a beating rod is mounted on the outer surface of the swinging ring, the beating rod is mounted on the swinging ring and is close to one side where the central axis of the first fat pipe is located, and the beating rod can swing up and down under the driving of the swinging ring to strike the first fat pipe and the second fat pipe.
Preferably, the first necking part comprises a first arc seat plate, the first arc seat plate is arranged at the top of the inner side of the first fat pipe in a circular array and is close to the top end opening of the first fat pipe, a small bolt is arranged at the bottom thread of the first arc seat plate, and the first arc seat plate is arranged with the first fat pipe bolt through the small bolt.
Preferably, the side of the first arc seat board near the top port of the first fat pipe is fixedly connected with a curved wall spring plate, one surface of the curved wall spring plate facing the inner side wall of the first fat pipe is connected with a first elastic telescopic body in equal arc length, the curved wall spring plate is arranged in a bouncing way through the first elastic telescopic body and the inner side wall of the first fat pipe, and a plurality of first necking parts are arranged at the top port of the first fat pipe in a vase shape together.
Preferably, a second necking part is installed at the top end opening of the inner side of the second fat pipe, an inner cage ring is fixedly connected to the bottom of the inner side wall of the second fat pipe, the top of the curved wall spring plate is covered on the inner side of the inner cage ring, a second wall bulge is fixedly connected to the inner side wall of the second fat pipe, the second wall bulge is installed on the periphery of the inner cage ring, the structure of the second wall bulge is identical to that of the first wall bulge, the minimum inner diameter of a horn-shaped structure formed by the second necking part is smaller than the minimum inner diameter of a vase-shaped structure formed by the first necking part, and the inner diameter of the first connecting pipe is directly smaller than the minimum inner diameter of the first necking part, so that when the oil layer is out of sand, sand is sequentially guided by the main oil pipe, the first connecting pipe, the first fat pipe, the second necking part and the threaded pipe, and the inner cavity diameter of each guide are sequentially reduced, and therefore the oil containing sand is throttled on the inner side of the first necking pipe and the second necking part in unit time, and the total amount of the oil can be fully collided with the first sand and the second fat pipe in a full contact.
Preferably, the outer surface of the second fat pipe and the position close to the bottom are fixedly connected with a vacuum wall body, a slip ring cavity is annularly arranged in the middle of the upper wall surface and the lower wall surface on the inner side of the vacuum wall body, a second strong magnet is embedded and installed on the inner side of the vacuum wall body through the slip ring cavity in a circular array, a scraping blade is installed on the inner side wall surface of the second fat pipe in a fitting mode, the scraping blade is rotatably installed with the second fat pipe through a second wall protrusion, a second electromagnet is installed on the edge of the scraping blade, which is attached to the inner side wall surface of the second fat pipe, in a fitting mode, and is electrically connected with a controller, the controller can also control the existence of magnetism of the second strong magnet, the whole second strong magnet faces towards the second electromagnet in an inclined mode, and the second electromagnet magnetic poles repel each other.
Preferably, the second necking part is including being circular array and installing the second arc bedplate on the intraductal wall face of the second fat to be located near the top mouth of the second fat pipe and install, the top avris fixedly connected with short bent plate of second arc bedplate, just the top of short bent plate stretches into the top mouthful inboard setting of the fat pipe of second, the one side of the intraductal wall of the fat pipe of short bent plate face towards the second is connected with the second elastic expansion body, short bent plate is through the elastic installation of the fat pipe spring of second elastic expansion body and second.
Preferably, the one end cartridge that the axostylus axostyle was kept away from to the ring fastener has the pin, the pin can run through the bottom of thick pipe and with the top looks cartridge of the cover body, the top intermediate position gomphosis of the cover body is installed the frame plate, the sand oil seepage prevention board is installed at the top of frame plate, just the sand oil seepage prevention board passes through frame plate and the installation of the gomphosis of the cover body, the sand oil seepage prevention board can be with the oil filtration infiltration inboard of the cover body.
Preferably, the pressure boost valve is installed to the surface of the cover body and one side of keeping away from the axostylus axostyle, can carry out the pressure boost to the inboard of the cover body for the speed of infiltration sand oil seepage board is hindered in the sand screen cover from the oil, the surface bottom fixedly connected with transparent magnetic valve pipe of the cover body, the one end that the cover body was kept away from to transparent magnetic valve pipe is connected on main oil pipe, the topside of the cover body surface just is located the pressure boost valve and articulates mutually with the bottom avris of thick pipe to the side.
The invention provides a high-pressure oil extraction wellhead capable of preventing sand and removing sand, which has the following beneficial effects:
1. this but sand control degritting's high pressure oil recovery well head can alleviate the total amount that sand got into screen pipe filter screen assembly among the prior art, lightens screen pipe filter screen assembly and gets rid of the work total amount of sand, reduces the frequency to the inside clearance of screen pipe filter screen assembly among the prior art, prolongs screen pipe filter screen assembly and combines the effective filtration cycle of my oil recovery well to the sand-bearing oil to and improve the collection treatment efficiency of oil recovery well to the sand-bearing oil.
2. This but sand control degritting's high pressure oil recovery well head utilizes the backward flow collision and the adhesion of sand-containing oil in the inside wall of first fat pipe for a part of sand is blocked in the bottom of first fat pipe, and a part of sand is blocked in the bottom of second fat pipe, then under the rotatory scraping of crescent ridge plate and doctor-bar, finally collect sand core cover inboard, and the oil that contains a small part of sand then gets into among the screen pipe filter screen device among the prior art participate in last sand-out link, so realize the prevention and the removal to the sand in the sand-containing oil.
3. According to the sand-prevention and sand-removal high-pressure oil extraction wellhead, the joint part of the top of the first connecting pipe and the first fat pipe is concave towards the inner cavity of the first fat pipe, so that oil reversely flowing into the bottom of the first fat pipe is avoided, sand wrapped by the bottom flows back into the middle part of the first fat pipe for the second time, and the sand is conveniently collected into the sand filtering core sleeve in a centralized manner by the crescent ridge plate; similarly, the inner cage ring protruding out of the bottom of the inner side of the second fat pipe is utilized to block the backflow of petroleum and sand to the middle part, sand can be ensured to be scraped into the falling pipe by the scraping blade, and then the sand is collected into the sand filtering core sleeve by the secondary scraping of the first fat pipe and the crescent ridge plate.
4. This but sand control degritting's high pressure oil recovery well head blocks the continuous exploitation of oil through closing the control valve, then beats the surface of first fat pipe and the fat pipe of second through rocking ring control striking pole back and forth swing, utilizes vibration to assist crescent back plate and doctor-bar to the sand that adheres to on the inside wall of first fat pipe and the fat pipe of second, unified tremble and scrape to the sand core cover inboard, prevent that a large amount of residues in the inner chamber of first fat pipe and the fat pipe of second from influencing the oil exploitation process of next to and alleviate remaining sand and follow-up removal effect to sand in the sand-bearing oil to screen pipe filter screen device among the prior art.
5. According to the sand-prevention and sand-removal high-pressure oil extraction wellhead, the joint part of the top of the first connecting pipe and the first fat pipe is concave towards the inner cavity of the first fat pipe, so that oil reversely flowing into the bottom of the first fat pipe is avoided, sand wrapped by the bottom flows back into the middle part of the first fat pipe for the second time, and the sand is conveniently collected into the sand filtering core sleeve in a centralized manner by the crescent ridge plate; similarly, the inner cage ring protruding out of the bottom of the inner side of the second fat pipe is utilized to block the backflow of petroleum and sand to the middle part, sand can be ensured to be scraped into the falling pipe by the scraping blade, and then the sand is collected into the sand filtering core sleeve by the secondary scraping of the first fat pipe and the crescent ridge plate.
Drawings
FIG. 1 is a schematic diagram of the external structure of a high pressure oil recovery wellhead capable of sand prevention and removal according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of a high pressure oil recovery wellhead capable of sand prevention and removal according to the present invention;
FIG. 3 is a schematic view of the disassembled structure of the crescent back plate and the first fat tube of the present invention;
FIG. 4 is a schematic view of the construction of a first necking member of the present invention;
FIG. 5 is a partial cross-sectional view of a second fat tube of the present invention;
FIG. 6 is a schematic view of the structure of the rapping device of the present invention;
FIG. 7 is a schematic view of the construction of a second necking member of the present invention;
FIG. 8 is a schematic view of the sand removal assembly of the present invention;
fig. 9 is a schematic structural view of the cover body of the present invention.
In the figure: 1. a main oil pipe; 2. a control valve; 3. a first sand control tubular; 31. a first fat tube; 32. a first connection pipe; 33. a striking member; 34. a first necking member; 35. a first wall protrusion; 36. a controller; 37. a crescent ridge plate; 38. a first electromagnet; 39. a first strong magnet; 331. a drop tube; 332. a wobble ring; 333. knocking the rod; 341. a first arc seat plate; 342. a curved wall spring plate; 343. a first elastic expansion body; 344. a small bolt; 4. a second sand control tube; 41. a second fat tube; 42. a second necking member; 43. an inner cage ring; 44. a second wall protrusion; 45. a vacuum wall; 46. a slip ring cavity; 47. a second strong magnet; 48. a wiper blade; 49. a second electromagnet; 421. a second arc seat plate; 422. a short curved plate; 423. a second elastic expansion body; 5. a threaded tube; 6. a sand removal assembly; 61. thick pipe; 62. a sand filtering core sleeve; 63. a cover body; 64. a shaft lever; 65. a ring clamp body; 66. a pin; 67. a frame plate; 68. sand-blocking oil seepage plate; 69. a pressure increasing valve; 610. a transparent magnetic valve tube; 7. and (5) supporting the tube.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
In a first embodiment, as shown in fig. 1 to 9, the present invention provides a technical solution: the high-pressure oil extraction wellhead capable of preventing sand and removing sand comprises a main oil pipe 1, wherein a control valve 2 is arranged in the middle of the outer surface of the main oil pipe 1 and used for controlling the opening and closing of the main oil pipe 1;
the sand control pipe fitting 3 is arranged at the top of the main oil pipe 1 in a flange mode, the sand control pipe fitting 3 comprises a first fat pipe 31, a first connecting pipe 32 is fixedly connected to the middle position of the bottom of the first fat pipe 31, the bottom flange of the first connecting pipe 32 is arranged at the top of the main oil pipe 1, and beating pieces 33 are symmetrically arranged at the top of the outer surface of the first fat pipe 31; a first necking piece 34 is arranged on the inner side top wall surface of the first fat pipe 31 in a circular array, a first wall protrusion 35 is arranged on the inner side wall surface of the first fat pipe 31, the first wall protrusion 35 is arranged between the first connecting pipe 32 and the first necking piece 34, and the first wall protrusion 35 is formed by two concentric circles on the same horizontal plane;
the second sand control pipe fitting 4, the second sand control pipe fitting 4 comprises a second fat pipe 41, the middle position of the top of the second fat pipe 41 is connected with the middle position of the top of the first fat pipe 31, the two are connected into a whole, a threaded pipe 5 is arranged at the middle position of the top of the second fat pipe 41 in a threaded manner, a supporting pipe 7 is connected between the outer surfaces of the first fat pipe 31 and the second fat pipe 41, the bottom of the second fat pipe 41 can be supported, and the inner diameter of the top port of the inner side of the second fat pipe 41 is smaller than the inner diameter of the top port of the inner side of the first fat pipe 31;
the sand removal assembly 6, this sand removal assembly 6 symmetry installs in first sand control pipe fitting 3 surface bottom, sand removal assembly 6 includes the thick pipe 61 of fixed connection in first fat pipe 31 surface bottom, sand filtering core cover 62 is installed to the inboard middle part gomphosis of thick pipe 61, cover 63 is installed to the bottom of thick pipe 61, the surface avris fixedly connected with axostylus axostyle 64 of cover 63, it has the ring clamp body 65 to articulate through axostylus axostyle 64 on the surface of cover 63, the bottom of thick pipe 61 is through the top clamping of ring clamp body 65 and cover 63, and the bottom of thick pipe 61 seals the laminating mutually with the top of cover 63.
When the sand control device is used, the first sand control pipe fitting 3 and the second sand control pipe fitting 4 are flange-mounted on the main oil pipe 1 of a 175Mpa oil-gas well wellhead, and then the conventional screen pipe filter screen device is flange-mounted on the top of the second sand control pipe fitting 4 through the threaded pipe 5, so that the sand control device is matched with a spinning filter screen device in the prior art to perform sand control, sand removal and sand control on a high-pressure oil extraction well; in the prior art, water injection or gas injection usually occurs in the process of injecting water into a wellhead of a 175Mpa oil gas well and discharging oil, sand is carried when high-pressure gas is discharged, sand is carried when injected water is discharged, and the produced oil also carries the sand due to geological congenital factors and artificial development factors in the process of discharging oil.
Taking sand carried in the oil discharge as an example, the oil layer is sanded: firstly, before sand-bearing oil enters the inner side of a first fat pipe 31, a crescent rib plate 37 and a scraping blade 48 are started to synchronously rotate clockwise through a controller 36, and when the first fat pipe 31 and a second fat pipe 41 are utilized to carry out flow blocking guide on the sand-bearing oil, relatively static sand in a steady flow area at the inner bottoms of the first fat pipe 31 and the second fat pipe 41 is simultaneously collected through the crescent rib plate 37 and the scraping blade 48, the sand in the steady flow area at the inner bottom of the second fat pipe 41 is scraped into the inner side of the first fat pipe 31 through the scraping blade 48, then the crescent rib plate 37 at the inner side of the first fat pipe 31 automatically scrapes relatively static sand into the inner side of a coarse pipe 61 in the steady flow area at the inner bottom of the first fat pipe 31, and concentrated filtration is carried out through a sand filtering core sleeve 62; the sand in the oil layer is finally collected into the sand-filtering core sleeve 62, so that the sand in the oil layer is continuously filtered and removed, meanwhile, the total amount of sand entering the screen pipe filter screen device in the prior art can be reduced, the working amount of the screen pipe filter screen device for removing the sand is reduced, the frequency of cleaning the inside of the screen pipe filter screen device in the prior art is reduced, the effective filtering period of the screen pipe filter screen device for sand-containing oil in combination with the my oil production well is prolonged, and the collection and treatment efficiency of the oil production well for the sand-containing oil is improved.
Then the first elastic telescopic body 343 and the second elastic telescopic body 423 are synchronously started to drive the curved wall elastic plate 342 and the short curved plate 422 corresponding to the first elastic telescopic body 343 and the second elastic telescopic body 423 to intermittently contract and expand at the top opening parts corresponding to the first elastic telescopic body and the second elastic telescopic body respectively, so that the sand-containing oil flowing through the top openings of the first fat pipe 31 and the second fat pipe 41 is subjected to local flapping interception, and most of sand is separated into two paths to intercept in the inner bottom slow flow areas of the first fat pipe 31 and the second fat pipe 41.
The slow flow region is specifically a storage region in which sand can be relatively kept still, at a curved surface portion in a ring shape at the bottom of the inner cavity of the first fat pipe 31 or the second fat pipe 41, which cannot be directly impacted by oil.
Then, by opening the control valve 2, sand-containing oil enters the inner side of the first fat pipe 31 under the guidance of the same inner diameter pipe cavity of the main oil pipe 1 and the first connecting pipe 32, then part of sand-containing oil is blocked at the inner side of the first fat pipe 31 under the first flow blocking guidance of the small-diameter first necking piece 34, and part of sand-containing oil is blocked at the bottom of the first fat pipe 31 by utilizing the backflow collision and adhesion of the sand-containing oil in the inner side wall of the first fat pipe 31, part of sand is blocked at the bottom of the second fat pipe 41, then the sand is finally collected at the inner side of the sand-filtering core sleeve 62 under the rotary scraping of the crescent ridge plate 37 and the scraping piece 48, and the oil containing a small part of sand enters the last sand-out link in the sieve tube filter screen device in the prior art, so that sand prevention and removal of sand in the sand-containing oil are realized.
In the second embodiment, as shown in fig. 1 to 6, a controller 36 is installed on the outer wall surface of the first fat pipe 31 and near the first connecting pipe 32, a crescent rib plate 37 is installed on the inner wall surface of the first fat pipe 31 in a fitting manner, and the crescent rib plate 37 is integrally and limitedly installed between two concentric circles; the first electromagnets 38 are mounted at two ends of the crescent ridge plate 37, which are in contact with the inner side wall surface of the first fat tube 31, the magnetic surfaces of the first electromagnets 38 are mounted in the crescent ridge plate 37 in an inclined embedded manner, the first strong magnets 39 are mounted in the inner wall of the first fat tube 31 in an embedded manner in a circular array, the magnetic surfaces of the first strong magnets 39 are opposite to the magnetic surfaces of the first electromagnets 38, the magnetic forces of the first strong magnets 39 and the magnetic forces of the first electromagnets 38 repel each other, and the first strong magnets 39 can be controlled to be sequentially electrified and demagnetized clockwise or anticlockwise through the controller 36, so that tangential thrust in a rotating direction of the crescent ridge plate 37 is given to the crescent ridge plate 37 in an inclined direction, and the crescent ridge plate 37 is continuously pushed to rotate in the inner side of the first fat tube 31, so that sand attached to the inner wall of the first fat tube 31 is scraped by the crescent ridge plate 37, and the sand is scraped into the inner side of the thick tube 61.
The beating member 33 comprises a falling pipe 331, the falling pipe 331 is symmetrically connected between the first sand prevention pipe 3 and the second sand prevention pipe 4, the first fat pipe 31 is communicated with the second fat pipe 41 through the falling pipe 331, the top of the falling pipe 331 is fixedly connected to the outer surface of the second fat pipe 41, the bottom of the falling pipe 331 is fixedly connected to the outer surface of the first fat pipe 31, a rocking ring 332 is sleeved on the outer surface of the falling pipe 331, a beating rod 333 is mounted on the outer surface of the rocking ring 332, the beating rod 333 is mounted on the rocking ring 332 and is close to one side of the central axis of the first fat pipe 31, and the beating rod can swing up and down under the driving of the rocking ring 332 to strike the first fat pipe 31 and the second fat pipe 41.
The first necking piece 34 comprises a first arc seat plate 341, the first arc seat plate 341 is arranged on the top of the inner side of the first fat pipe 31 in a circular array, and is close to the top end opening of the first fat pipe 31, a small bolt 344 is arranged at the bottom thread of the first arc seat plate 341, and the first arc seat plate 341 is in bolt installation with the first fat pipe 31 through the small bolt 344; the side of the first arc seat board 341, which is close to the top port of the first fat pipe 31, is fixedly connected with a curved wall spring plate 342, one surface of the curved wall spring plate 342, which faces the inner side wall of the first fat pipe 31, is connected with a first elastic telescopic body 343, the curved wall spring plate 342 is in spring installation with the inner side wall of the first fat pipe 31 through the first elastic telescopic body 343, and a plurality of first necking members 34 are installed at the top port of the first fat pipe 31 in a vase shape together.
When the oil extraction device is used, the control valve 2 is closed to block the continuous oil extraction, then the knocking rod 333 is controlled to swing back and forth up and down through the swinging ring 332 to knock the outer surfaces of the first and second fat pipes 31 and 41, the vibration is utilized to assist the crescent ridge plate 37 and the scraping blade 48 to shake and scrape sand attached to the inner side walls of the first and second fat pipes 31 and 41 uniformly to the inner side of the sand-filtering core sleeve 62, so that the sand is prevented from largely remaining in the inner cavities of the first and second fat pipes 31 and 41 to influence the next oil extraction process, and the subsequent removal effect of the residual sand on sand in sand-containing oil by the screen pipe filter screen device in the prior art is reduced.
The joint part of the top of the first connecting pipe 32 and the first fat pipe 31 is in a concave shape towards the inner cavity of the first fat pipe 31, so that oil reversely flowing into the bottom of the first fat pipe 31 is avoided, sand wrapped with the bottom flows back into the middle part of the first fat pipe 31 for the second time, and the crescent ridge plate 37 is convenient for collecting the sand in a concentrated way into the sand filtering core sleeve 62; similarly, by using the inner cage ring 43 protruding from the bottom of the inner side of the second fat pipe 41, the blocking effect on the backflow of petroleum and sand to the middle part can also ensure that the sand is scraped into the drop pipe 331 by the scraping blade 48, and then the sand is collected into the sand-filtering core sleeve 62 through the secondary scraping of the first fat pipe 31 and the crescent ridge plate 37.
The top of the curved wall spring plate 342 is covered on the inner side of the inner cage ring 43 through the inner cage ring 43, so that the inner side of the second fat pipe 41 is avoided, the oil flowing back from the bottom to the middle is directly lifted from the bottom surface of the top of the curved wall spring plate 342 through the curved surface guide of the inner side wall of the second fat pipe 41, the curved wall spring plate 342 is ensured to better play a role in the covering range of the inner cage ring 43, and meanwhile, sand can be effectively prevented from being directly plugged or blocked between the curved wall spring plate 342 and the inner side wall of the first fat pipe 31.
In the third embodiment, as shown in fig. 2 and fig. 5 to fig. 9, on the basis of the first and second embodiments, a second necking member 42 is installed at the top end opening of the inner side of the second fat tube 41, an inner cage ring 43 is fixedly connected to the bottom of the inner side wall of the second fat tube 41, the top of a curved wall spring plate 342 is covered on the inner side of the inner cage ring 43, a second wall protrusion 44 is fixedly connected to the inner side wall of the second fat tube 41, the second wall protrusion 44 is installed around the inner cage ring 43, the structure of the second wall protrusion 44 is the same as that of the first wall protrusion 35, and the minimum inner diameter of a horn-shaped structure formed by the second necking member 42 is smaller than the minimum inner diameter of a vase-shaped structure formed by the first necking member 34; the outer surface of the second fat pipe 41 and the position close to the bottom are fixedly connected with a vacuum wall body 45, a slip ring cavity 46 is annularly arranged in the middle of the upper wall surface and the lower wall surface inside the vacuum wall body 45, a second strong magnet 47 is embedded and installed inside the slip ring cavity 46, the second strong magnet 47 is installed inside the vacuum wall body 45 in a circular array through the slip ring cavity 46, scraping blades 48 are respectively attached to the inner wall surface of the second fat pipe 41, the scraping blades 48 are rotatably installed with the second fat pipe 41 through second wall protrusions 44, second electromagnets 49 are embedded and installed at edges, attached to the inner wall surface of the second fat pipe 41, of the scraping blades 48 are electrically connected with the controller 36, the controller 36 can also control the existence of magnetism of the second strong magnet 47, the whole second strong magnet 47 faces the second electromagnets 49 in an inclined mode, and the second electromagnets 49 and the second strong magnets 47 are in magnetic pole repulsion.
The second necking part 42 comprises a second arc seat plate 421 which is arranged on the inner side wall surface of the second fat pipe 41 in a circular array, and is arranged near the top end opening of the second fat pipe 41, the side edge of the top of the second arc seat plate 421 is fixedly connected with a short bent plate 422, the top of the short bent plate 422 stretches into the inner side of the top end opening of the second fat pipe 41, one surface of the short bent plate 422, which faces the inner side wall of the second fat pipe 41, is connected with a second elastic telescopic body 423, and the short bent plate 422 is arranged in a bouncing way with the second fat pipe 41 through the second elastic telescopic body 423.
The pin 66 is inserted into one end of the ring clamp body 65 far away from the shaft lever 64, the pin 66 can penetrate through the bottom of the thick pipe 61 and is inserted into the top of the cover body 63, the frame plate 67 is embedded and installed in the middle of the top of the cover body 63, the sand-blocking oil-seepage plate 68 is installed at the top of the frame plate 67, the sand-blocking oil-seepage plate 68 is embedded and installed with the cover body 63 through the frame plate 67, and the sand-blocking oil-seepage plate 68 can filter and infiltrate petroleum into the inner side of the cover body 63; the pressure boost valve 69 is installed to the surface of cover 63 and the one side that keeps away from axostylus axostyle 64, can carry out the pressure boost to the inboard of cover 63 for the speed of oil infiltration sand oil seepage board 68 is hindered in the filter core cover 62, and the surface bottom fixedly connected with transparent magnetic valve pipe 610 of cover 63, the one end that the cover 63 was kept away from to transparent magnetic valve pipe 610 is connected on main oil pipe 1, and the topside of cover 63 surface just is located the pressure boost valve 69 and articulates with the bottom avris of thick pipe 61 to the side.
When the sand removing device is used, after sand is uniformly scraped and vibrated to fall into the inner side of the sand filtering core sleeve 62, the pin 66 is pulled upwards, the open ring clamp body 65 is opened clockwise around the shaft rod 64, then the cover body 63 is turned downwards around the hinge part, so that the sand filtering core sleeve 62 falls out of the inner side of the thick pipe 61, then the sand in the sand filtering core sleeve 62 is removed, and the sand is reloaded into the thick pipe 61, so that the sand in the sand removing assembly 6 is quickly cleaned, the cleaned sand is simple and easy to operate, the collection function of the sand in the next petroleum is not influenced, and the sand removing device is simple in structure, light and easy to use.
The inner side of the thick pipe 61 can be pressurized through the pressurizing valve 69 before the control valve 2 is closed and the ring clamp body 65 is opened, so that a small amount of oil contained in the inner side of the sand filter core sleeve 62 can be accelerated, the oil can quickly permeate into the inner side of the cover body 63 from the sand filter core sleeve 62 and the sand-blocking oil seepage plate 68, and the oil can be returned and conveyed into the inner side of the main oil pipe 1 through the transparent magnetic valve pipe 610, so that the oil can be recovered in a homeopathic manner when the oil is collected next time, the saving of oil resources and the collection of the maximum efficiency are realized, and meanwhile, the oil contained in the sand filter core sleeve 62 can be prevented from polluting both hands of operators and the oil is prevented from polluting the whole sand removing assembly 6.
And through the structure installation mode that the sand-blocking oil-seepage plate 68 is installed on the inner side of the top of the cover body 63 in a limiting way through the frame plate 67, the manual self-checking and damaged replacement of the sand-blocking oil-seepage plate 68 can be realized after the cover body 63 is opened.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (10)
1. The utility model provides a but sand control degritting's high pressure oil recovery well head, includes main oil pipe (1), its characterized in that: a control valve (2) is arranged in the middle of the outer surface of the main oil pipe (1);
the sand control device comprises a main oil pipe (1), and is characterized by further comprising a first sand control pipe fitting (3), wherein the first sand control pipe fitting (3) is flange-mounted at the top of the main oil pipe (1), the first sand control pipe fitting (3) comprises a first fat pipe (31), a first connecting pipe (32) is fixedly connected to the middle position of the bottom of the first fat pipe (31), the bottom flange of the first connecting pipe (32) is flange-mounted at the top of the main oil pipe (1), and beating pieces (33) are symmetrically mounted at the top of the outer surface of the first fat pipe (31);
a first necking part (34) is arranged on the inner side top wall surface of the first fat pipe (31) in a circular array, a first wall protrusion (35) is arranged on the inner side wall surface of the first fat pipe (31), the first wall protrusion (35) is arranged between the first connecting pipe (32) and the first necking part (34), and the first wall protrusion (35) is formed by two concentric circles on the same horizontal plane;
a controller (36) is arranged on the outer wall surface of the first fat pipe (31) and near the first connecting pipe (32), a crescent ridge plate (37) is attached to the inner wall surface of the first fat pipe (31), and the crescent ridge plate (37) is integrally and limitedly arranged between two concentric circles;
the second sand control pipe fitting (4), the second sand control pipe fitting (4) comprises a second fat pipe (41), the top middle position of the second fat pipe (41) is connected with the top middle position of the first fat pipe (31), the second sand control pipe fitting and the top middle position of the first fat pipe (31) are connected into the same whole, a threaded pipe (5) is arranged at the top middle position of the second fat pipe (41) in a threaded manner, a supporting pipe (7) is connected between the outer surfaces of the first fat pipe (31) and the second fat pipe (41), and the inner diameter of a top port at the inner side of the second fat pipe (41) is smaller than the inner diameter of a top port at the inner side of the first fat pipe (31);
the sand removal assembly (6), this sand removal assembly (6) symmetry is installed in first sand control pipe fitting (3) surface bottom, sand removal assembly (6) are including fixed connection thick pipe (61) in first fat pipe (31) surface bottom, sand filtering core cover (62) are installed to the inboard middle part gomphosis of thick pipe (61), cover body (63) are installed to the bottom of thick pipe (61), surface avris fixedly connected with axostylus axostyle (64) of cover body (63), it has ring clamp body (65) to articulate through axostylus axostyle (64) on the surface of cover body (63), the top clamping of thick pipe (61) and cover body (63) is passed through to the bottom of thick pipe (61), just the bottom of thick pipe (61) is sealed laminating mutually with the top of cover body (63).
2. The sand control and sand removal high pressure oil recovery wellhead as claimed in claim 1, wherein: the crescent moon ridge plate (37) is installed at both ends of the laminating contact of the inside wall surface of the first fat pipe (31) and is provided with a first electromagnet (38), the magnetic surface of the first electromagnet (38) is obliquely embedded in the crescent moon ridge plate (37), a first strong magnet (39) is embedded in the circular array in the inner wall of the first fat pipe (31), the magnetic surface of the first strong magnet (39) is obliquely opposite to the first electromagnet (38), and the magnetic force of the first strong magnet (39) and the magnetic force of the first electromagnet (38) repel each other.
3. The sand control and sand removal high pressure oil recovery wellhead as claimed in claim 2 wherein: the utility model provides a beating piece (33) is including whereabouts pipe (331), just whereabouts pipe (331) symmetrical connection is between first sand control pipe fitting (3) and second sand control pipe fitting (4), first fat pipe (31) are linked together through whereabouts pipe (331) and second fat pipe (41), the top fixed connection of whereabouts pipe (331) is on the surface of second fat pipe (41), the bottom fixed connection of whereabouts pipe (331) is on the surface of first fat pipe (31), the cover is equipped with rocking ring (332) on the surface of whereabouts pipe (331), install on the surface of rocking ring (332) and beat pole (333), beat pole (333) and install on rocking ring (332), and be close to one side that first fat pipe (31) axis is located.
4. A sand control and sand removal wellhead for high pressure oil recovery as claimed in claim 3 wherein: the first necking part (34) comprises a first arc seat plate (341), the first arc seat plate (341) is arranged on the inner top of a first fat pipe (31) in a circular array, a small bolt (344) is arranged at the bottom thread of the first arc seat plate (341), and the first arc seat plate (341) is arranged with the first fat pipe (31) through the small bolt (344) in a bolt mode.
5. The sand control and sand removal high pressure oil recovery wellhead as claimed in claim 4 wherein: the side of the first arc seat board (341) close to the top port of the first fat pipe (31) is fixedly connected with a curved wall spring plate (342), one surface of the curved wall spring plate (342) facing the inner side wall of the first fat pipe (31) is connected with a first elastic telescopic body (343) in equal arc length, and the curved wall spring plate (342) is arranged in a bouncing mode with the inner side wall of the first fat pipe (31) through the first elastic telescopic body (343).
6. The sand control and sand removal high pressure oil recovery wellhead as claimed in claim 5 wherein: the top mouth department of the inboard of second fat pipe (41) installs second necking down spare (42), the inside wall bottom fixedly connected with of the inboard of second fat pipe (41) is interior cage ring (43), the top of curved wall springboard (342) is by the inboard of cage ring (43) in, fixedly connected with second wall protruding (44) on the inboard wall of the second fat pipe (41), just second wall protruding (44) are installed around interior cage ring (43), and the structure of second wall protruding (44) is the same with the structure of first wall protruding (35), the minimum internal diameter of the horn-like structure that second necking down spare (42) constitutes is less than the minimum internal diameter of the vase-like structure that first necking down spare (34) constitutes.
7. The sand control and sand removal high pressure oil recovery wellhead as claimed in claim 6 wherein: the utility model discloses a vacuum cleaning device for the automobile, including vacuum wall body (45) is fixed in the surface of the second fat pipe (41) and is close to the position fixedly connected with vacuum wall body (45) of bottom, slip ring chamber (46) have been seted up to the upper and lower wall surface middle part of vacuum wall body (45) inboard, second strong magnet (47) are installed in the inboard gomphosis of slip ring chamber (46), just second strong magnet (47) are circular array installation form through slip ring chamber (46) and install the inboard at vacuum wall body (45), each laminating is installed doctor-bar (48) on the inside wall surface of the second fat pipe (41), doctor-bar (48) are through the protruding (44) of second wall and the rotatory installation of second fat pipe (41), doctor-bar (48) are installed in the gomphosis of the side edge department that the inside wall surface of the second fat pipe (41) is laminated, second strong magnet (47) are whole to be the slope form and face towards second electromagnet (49), second electromagnet (49) and second strong magnet (47) repel.
8. The sand control and sand removal high pressure oil recovery wellhead as claimed in claim 7 wherein: the second necking part (42) is including being circular array and installing second arc bedplate (421) on the inside wall face of second fat pipe (41) to be located near the top mouth of second fat pipe (41) and install, the top avris fixedly connected with short bent plate (422) of second arc bedplate (421), just the top of short bent plate (422) stretches into the top mouthful inboard setting of second fat pipe (41), the one side of the inside wall of short bent plate (422) facing second fat pipe (41) is connected with second elastic expansion body (423), short bent plate (422) are through second elastic expansion body (423) and the flexible installation of second fat pipe (41).
9. The sand control and sand removal high pressure oil recovery wellhead as claimed in claim 1, wherein: the one end cartridge that axostylus axostyle (64) was kept away from to ring card body (65) has pin (66), pin (66) can run through the bottom of thick pipe (61) and with the top looks cartridge of cover body (63), frame plate (67) are installed in the top intermediate position gomphosis of cover body (63), sand-blocking oil seepage board (68) are installed at the top of frame plate (67), just sand-blocking oil seepage board (68) are installed through frame plate (67) and the gomphosis of cover body (63).
10. The sand control and sand removal high pressure oil recovery wellhead as claimed in claim 9 wherein: the pressure boosting valve (69) is installed on one side, far away from the shaft rod (64), of the outer surface of the cover body (63), a transparent magnetic valve pipe (610) is fixedly connected to the bottom of the outer surface of the cover body (63), one end, far away from the cover body (63), of the transparent magnetic valve pipe (610) is connected to the main oil pipe (1), and the top side of the outer surface of the cover body (63) is hinged to the bottom side of the thick pipe (61) on the opposite side of the pressure boosting valve (69).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410021004.1A CN117514125B (en) | 2024-01-08 | 2024-01-08 | High-pressure oil extraction wellhead capable of preventing sand and removing sand |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410021004.1A CN117514125B (en) | 2024-01-08 | 2024-01-08 | High-pressure oil extraction wellhead capable of preventing sand and removing sand |
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| CN117514125A CN117514125A (en) | 2024-02-06 |
| CN117514125B true CN117514125B (en) | 2024-04-02 |
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| CN111088973A (en) * | 2020-01-10 | 2020-05-01 | 新疆恒智伟业石油工程技术开发有限公司 | Multifunctional fracturing well completion pipe string and process for high-temperature and high-pressure oil and gas well |
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| CN1842635A (en) * | 2003-08-25 | 2006-10-04 | 杰弗里·A·斯普雷 | Expandable tubulars for use in geologic structures, methods for expanding tubulars, and methods of manufacturing expandable tubulars |
| CN102022100A (en) * | 2009-09-11 | 2011-04-20 | 营口市石光石油机械有限责任公司 | Tandem combined perforating and sand-controlling device for oil well |
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| CN117514125A (en) | 2024-02-06 |
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