CN104533306B - Insulated tubing is wrapped up in outside a kind of - Google Patents
Insulated tubing is wrapped up in outside a kind of Download PDFInfo
- Publication number
- CN104533306B CN104533306B CN201410601826.3A CN201410601826A CN104533306B CN 104533306 B CN104533306 B CN 104533306B CN 201410601826 A CN201410601826 A CN 201410601826A CN 104533306 B CN104533306 B CN 104533306B
- Authority
- CN
- China
- Prior art keywords
- thermal insulation
- layer
- outside
- oil pipe
- insulation layer
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a general shape other than plane
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (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)
- Thermal Insulation (AREA)
Abstract
The invention discloses and outside one, wrap up in insulated tubing, the oil pipe being made up of steel oil pipe, the outer thermal insulation layer of oil pipe, the outer corrosion protective covering of thermal insulation layer.The two ends of described oil pipe are for being machined with externally threaded thread segment, and the part near two ends thread segment is two lever pieces, and the part between two lever pieces is interlude.One layer of outer thermal insulation layer is wrapped up equably at described oil pipe interlude outer wall; one layer of outer corrosion protective covering is wrapped up in outside thermal insulation layer outer wall; couple box cupling down operation section and box cupling outer wall at described oil pipe are installed and are fixed the semicircle thermal insulation protection pipe boxes of two docking, above section constitute jointly one and integrally-built outer wrap up in insulated tubing.The present invention can be effectively reduced the loss of crude oil crude oil own temperature during shaft bottom flows to well head and improve crude oil fluidised form in the wellbore, is finally reached energy-saving and emission-reduction, is substantially reduced cost of oil production.
Description
Technical field
The present invention relates to a kind of the outer of oil extraction in oil field tubing string that be applicable to and wrap up in insulated tubing.
Background technology
In the actual production process of oil field, commonly used pure light pipe (not adding any heat-insulation and heat-preservation measure) recovers the oil at present
Tubing string produces, and this oil production method exists the problem that crude oil own temperature loses in a large number, and make in pit shaft is former
Oil mobility is poor, increases oil pumper load, waste electric energy and the heat energy of surface gathering system heating furnace.
Summary of the invention
Patent of the present invention " a kind of outer wraps up in insulated tubing " it is crucial that propose first: " appoint being not added with
Under conditions of what the extraneous artificial supplementary energy, make full use of stratum self heat energy, by oil recovery flow string
Increase oil pipe heat insulating function, reduce crude oil own temperature loss during shaft bottom flow to well head, it is achieved
Improve Wellhead crue oil temperature " novel concept.
It is an object of the invention to provide and outside one, wrap up in insulated tubing, crude oil can be effectively reduced and flow to well head from shaft bottom
During the temperature loss of crude oil self improve crude oil fluidised form in the wellbore, realize improving in actual production
Former Wellhead crue oil temperature 15～30 DEG C, solve a series of important technical during oil recovery pit shaft and surface gathering and transferring
A difficult problem, is substantially reduced cost of oil production.This invention is an extraordinary energy-saving and emission-reduction new product, is worth big
Try hard to recommend wide.
The technical solution used in the present invention is as follows:
Wrapping up in insulated tubing outside a kind of, the two ends of described oil pipe are for being machined with externally threaded thread segment, near two ends spiral shell
The part of line section is two lever pieces, and the part between two lever pieces is interlude；In described oil pipe (1)
Between section outer wall wrap up equably and outside one, wrap up in anticorrosive heat insulating protective layer (12), and at the oil pipe of oil pipe (1) interlude
One layer of thermal insulation layer (10) of application between anticorrosive heat insulating protective layer (12) is wrapped up in outside outer wall and oil pipe.
Outside the outer wall of thermal insulation layer (10), wrap up in one layer of thermal insulation layer protection steel band (11), protect steel band at thermal insulation layer
(11) anticorrosive heat insulating protective layer (12) is wrapped up in outside outside parcel one layer.
At the connection box cupling (7) and lever piece of described oil pipe (1), its periphery is fixed with the most prefabricated
The semicircle thermal insulation protection pipe boxes (5) of two docking, semicircle thermal insulation protection pipe box (5) has
The slip screw thread that two are tightened fastens steel bushing (8-1), (8-2)；Semicircle thermal insulation protection pipe two docking
In the middle part of the contact surface of set (5), corresponding position devises the seal groove (2-1) of filling fluid sealant astragal (2), institute
The seal groove (2-1) stated from top to bottom and is extended to radially crowd around contact surface.
Interlude outer wall at described oil pipe (1) wraps up one layer of thermal insulation layer (10), and outer insulation thickness is 6mm,
Outer thermal insulation layer material therefor is aeroge nano super felt insulation heat-insulating heat-preserving material.
One layer of thermal insulation layer protection steel band is wrapped up in outside the outer wall of the thermal insulation layer (10) of the interlude of described oil pipe (1)
(11), its thickness is 0.2～0.4mm, the ordinary steel belts that 4mm is wide；Steel band use be wound around mode be entangled in every
The outer wall of thermosphere (10), overlaps 20～30% between steel band.
Thermal insulation layer at the interlude of described oil pipe (1) protects steel band (11) outward, wraps up in anticorrosion outside wrapping up in outward one layer
The thickness of heat-barrier coating (12) is 3～3.5mm, and this outer anticorrosive heat insulating protective layer material therefor of wrapping up in is high density
Composite polyethylene material.
At two lever pieces of the upper 500mm and lower 400mm of connection box cupling (7) of described oil pipe (1),
Arranging the semicircle thermal insulation protection pipe box (5) of two docking, the semicircle thermal insulation protection pipe box of two docking uses
Nylon material or high-density polyethylene composite material, by mold injection molding, its thickness is 7.5～8mm.
The invention have the advantage that the temperature loss reducing downhole crude self, solve lower well construction, transportation
In practical problem, be substantially reduced cost of oil production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 be Fig. 1 along A-A direction sectional view.
Fig. 3 is the local I schematic diagram of Fig. 1.
Fig. 4 be Fig. 2 along B-B direction sectional view.
Fig. 5 be Fig. 2 along C-C direction sectional view.
Detailed description of the invention
A kind of outer structure wrapping up in insulated tubing of the present invention, as shown in Figure 1 and Figure 2: wrap up in heat insulation outside a kind of
Oil pipe, including steel oil pipe (steel pipe column), the outer thermal insulation layer of oil pipe, the oil pipe of thermal insulation layer outer corrosion protective covering composition.
The two ends of described oil pipe are for being machined with externally threaded thread segment, and the part near two ends thread segment is two lever pieces,
Part between two lever pieces is interlude.
Interlude outer wall at described oil pipe (1) wraps up a thermal insulation layer (10) equably, and in thermal insulation layer (10)
Outer wall outside wrap up in one layer of thermal insulation layer protection steel band (11), finally at thermal insulation layer protection steel band (11) outside parcel
Anticorrosive heat insulating protective layer (12) is wrapped up in outside one layer.The upper 500mm of connection box cupling (7) at described oil pipe (1) and
Two lever pieces of lower 400mm and box cupling outer wall, be provided with the semicircle thermal insulation protection pipe box of two docking
(5)。
Now the outer both ends of the surface wrapping up in insulated tubing are oil pipe end face, wrap up in outward the outer surface of insulated tubing for wrapping up in outward anticorrosion
The outer surface of heat-barrier coating.
See Fig. 3,4,5.
The interlude outer wall of described oil pipe (1) wraps up one layer of thermal insulation layer (10), outer insulation thickness equably
For 6mm.Outer thermal insulation layer material therefor is aeroge nano super felt insulation heat-insulating heat-preserving material, and this material has
There is fabulous heat insulation and water-proof function.
One layer of thermal insulation layer protection steel band is wrapped up in outside the outer wall of the thermal insulation layer (10) of the interlude of described oil pipe (1)
(11), this protection thickness of strips is 0.2～0.4mm, and selected materials is the ordinary steel that 0.2mm is thick, wide for 4mm
Band.Steel band uses the mode being wound around to be entangled in the outer wall of thermal insulation layer (10), overlaps 20～30% between steel band.
Anticorrosion is wrapped up in outside wrapping up in one layer outside the thermal insulation layer of the interlude of described oil pipe (1) protects steel band (11) the most again
Heat-barrier coating (12), wrapping up in outward anticorrosive heat insulating protective layer thickness is 3～3.5mm, and this outer anticorrosive heat insulating of wrapping up in is protected
Layer material therefor is high-density polyethylene composite material.Wrap up in outward anticorrosive heat insulating protective layer have outer anticorrosion and heat insulation,
Defencive function.
At two lever pieces of the upper 500mm and lower 400mm of connection box cupling (7) of described oil pipe (1)
Process mounting means is: after oil pipe and tubing coupling are connected at the construction field (site), by the most prefabricated two and half
After circular thermal insulation protection pipe box (5) docking is buckled well, by tight for upper and lower for thermal insulation protection pipe box (5) two slip screw threads
Gu steel bushing (8-1), (8-2) tighten, then by the two of two semicircle thermal insulation protection pipe box middle parts docked
After group fixed screw (6) is tightened, finally being installed by O-ring seal (9), whole installation process completes.Logical
Cross being used in combination of they, it is ensured that the effect of heat insulation of whole tubing string, the realization of impact resistance function.Make simultaneously
Do not destroy during constructing operation that oil pipe is heat insulation and other functions, utilize conventional tool just can conveniently complete to go into the well
Job execution.
The feature of described aeroge nano super felt insulation heat-insulating heat-preserving material be high temperature resistant, water resistance good.Every
Heat is incubated the conduction of the thermal loss that suppression efficiency is high, can suppress high temp objects, effectively suppression heat radiation and heat
Loss.The product that this nano High Seience Technology Co., Ltd. of materials'use ShaoXing,ZheJiang city produces.
Described thermoplastic high density's composite polyethylene material is selected and is added sky and development in science and technology Co., Ltd in Beijing
Sell product.
The selection of above material, is only enumerating in embodiment, and other similar products are also the options of this patent.
Described oil pipe (steel pipe column) is prior art the single-layer metal oil pipe (steel pipe column) processed.Institute
The outer thermal insulation layer stated is to have the aeroge nano super felt insulation that extremely strong heat preservation and insulation, thermal conductivity factor are extremely low
Heat-insulating heat-preserving material, for prior art product.Anticorrosive heat insulating protection will be rolled in outside material with special equipment when wrapping up in outward
Layer outer wall.
The present invention is by wrapping up one layer of outer thermal insulation layer equably at oil-pipe external wall, then will wrap up one outside outer thermal insulation layer
(wrap up in outward anticorrosive heat insulating protective layer act as protection oil-pipe external wall by the corruption of medium mode to layer anticorrosive heat insulating protective layer
Outer thermal insulation layer is protected not damaged by water erosion and other reasons while erosion, it is ensured that the effect of heat insulation of insulated tubing),
The outer of composition entirety wraps up in insulated tubing.There is good heat-proof quality, former Wellhead crue oil temperature can be effectively improved,
Improve crude oil fluidised form in the wellbore, reach energy-saving and emission-reduction purpose, be substantially reduced cost of oil production.
Claims (5)
1. wrapping up in an insulated tubing outside, the two ends of described oil pipe are for being machined with externally threaded thread segment, near two ends
The part of thread segment is two lever pieces, and the part between two lever pieces is interlude；It is characterized in that, described
Oil pipe (1) interlude outer wall wrap up equably and outside one, wrap up in anticorrosive heat insulating protective layer (12), and in oil pipe (1)
One layer of thermal insulation layer (10) of application between anticorrosive heat insulating protective layer (12) is wrapped up in outside the oil-pipe external wall of interlude and oil pipe；
One layer of thermal insulation layer protection steel band (11) is wrapped up in, at thermal insulation layer protection steel band (11) outside the outer wall of thermal insulation layer (10)
Anticorrosive heat insulating protective layer (12) is wrapped up in outside outside parcel one layer；Described oil pipe (1) connection box cupling (7) and
At lever piece, its periphery is fixed with the semicircle thermal insulation protection pipe box (5) of the most prefabricated two docking,
Two slip screw threads fastening steel bushing (8-1) tightened, (8-2) are had on semicircle thermal insulation protection pipe box (5)；
In the middle part of the semicircle thermal insulation protection pipe box (5) of two docking, devise two groups of fixed screws of docking
(6) connection ear mount；Correspondence portion in the middle part of the contact surface of the semicircle thermal insulation protection pipe box (5) of two docking
Position devises the seal groove (2-1) of filling fluid sealant astragal (2), and described seal groove (2-1) is from top to bottom
And be extended to radially crowd around contact surface.
Insulated tubing is wrapped up in, it is characterised in that in described oil pipe (1) outside one the most according to claim 1
Interlude outer wall parcel one layer of thermal insulation layer (10), outer insulation thickness is 6mm, and outer thermal insulation layer material therefor is
Aeroge nano super felt insulation heat-insulating heat-preserving material.
Insulated tubing is wrapped up in, it is characterised in that in described oil pipe (1) outside one the most according to claim 1
Interlude thermal insulation layer (10) outer wall outside wrap up in one layer of thermal insulation layer protection steel band (11), its thickness is
The ordinary steel belts that 0.2～0.4mm, 4mm are wide；Steel band uses the mode being wound around to be entangled in the outer wall of thermal insulation layer (10),
20～30% are overlapped between steel band.
Insulated tubing is wrapped up in, it is characterised in that in described oil pipe (1) outside one the most according to claim 1
Interlude thermal insulation layer protection steel band (11) outward, wrap up in outward the thickness wrapping up in anticorrosive heat insulating protective layer (12) outside a layer
Degree is 3～3.5mm, and this outer anticorrosive heat insulating protective layer material therefor of wrapping up in is high-density polyethylene composite material.
Insulated tubing is wrapped up in, it is characterised in that at described oil pipe (1) outside one the most according to claim 1
The upper 500mm and lower 400mm of connection box cupling (7) two lever pieces at, arrange the semicircles of two docking every
Thermal protection pipe box (5), the semicircle thermal insulation protection pipe box of two docking uses nylon material or high density polyethylene (HDPE)
Composite, by mold injection molding, its thickness is 7.5～8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601826.3A CN104533306B (en) | 2014-04-03 | 2014-10-31 | Insulated tubing is wrapped up in outside a kind of |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161148 | 2014-04-03 | ||
| CN2014201611489 | 2014-04-03 | ||
| CN201410601826.3A CN104533306B (en) | 2014-04-03 | 2014-10-31 | Insulated tubing is wrapped up in outside a kind of |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533306A CN104533306A (en) | 2015-04-22 |
| CN104533306B true CN104533306B (en) | 2016-09-07 |
Family
ID=51668716
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371030.3A Active CN104100209B (en) | 2014-04-03 | 2014-07-30 | Insulated tubing is wrapped up in outside a kind of |
| CN201420423832.XU Withdrawn - After Issue CN204040923U (en) | 2014-04-03 | 2014-07-30 | Insulated tubing is wrapped up in outside a kind of |
| CN201420642450.6U Withdrawn - After Issue CN204252846U (en) | 2014-04-03 | 2014-10-31 | Insulated tubing is wrapped up in outside a kind of |
| CN201410601826.3A Active CN104533306B (en) | 2014-04-03 | 2014-10-31 | Insulated tubing is wrapped up in outside a kind of |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371030.3A Active CN104100209B (en) | 2014-04-03 | 2014-07-30 | Insulated tubing is wrapped up in outside a kind of |
| CN201420423832.XU Withdrawn - After Issue CN204040923U (en) | 2014-04-03 | 2014-07-30 | Insulated tubing is wrapped up in outside a kind of |
| CN201420642450.6U Withdrawn - After Issue CN204252846U (en) | 2014-04-03 | 2014-10-31 | Insulated tubing is wrapped up in outside a kind of |
Country Status (1)
| Country | Link |
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| CN (4) | CN104100209B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100209B (en) * | 2014-04-03 | 2016-08-31 | 刘兴仁 | Insulated tubing is wrapped up in outside a kind of |
| CN104989289A (en) * | 2015-07-16 | 2015-10-21 | 刘兴仁 | Sealing and heat insulating device for wrapped insulated tubing and manufacturing method thereof |
| CN106907114B (en) * | 2017-05-08 | 2023-05-02 | 刘兴仁 | Externally wrapped nano heat-insulating oil pipe |
| CN107060656B (en) * | 2017-06-30 | 2023-07-07 | 刘兴仁 | Lining heat insulation oil pipe |
| CN110239152B (en) * | 2019-06-18 | 2021-04-20 | 哈尔滨工业大学 | Multilayer composite light heat insulation structure for high-temperature steam pipeline |
| CA3064458C (en) | 2019-12-10 | 2020-09-22 | Graham Brigham | A pipe insulation system |
| CA3115685C (en) | 2021-04-21 | 2022-02-15 | Integrity Products And Supplies Inc. | A pipe insulation spacer system |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1058800B1 (en) * | 1998-12-31 | 2005-06-01 | Saipem S.A. | Heat insulating device and method for insulating at least a submarine pipeline at great depth |
| JP2003293403A (en) * | 2002-04-03 | 2003-10-15 | Makoto Nishizawa | Heat insulating cover for pipe |
| CN2599207Y (en) * | 2002-12-18 | 2004-01-14 | 张兴礼 | Thermal insulatnig petroleum pipeline |
| US7118801B2 (en) * | 2003-11-10 | 2006-10-10 | Gore Enterprise Holdings, Inc. | Aerogel/PTFE composite insulating material |
| CN2690704Y (en) * | 2004-04-23 | 2005-04-06 | 付忠昌 | Modified polyurethane foam anti-corrosion thermal insulation pipe |
| CN2779196Y (en) * | 2005-03-15 | 2006-05-10 | 中国石油天然气集团公司 | Prestressed concrete submarine oil pipe |
| CN101799099B (en) * | 2010-04-16 | 2011-08-31 | 中国人民解放军国防科学技术大学 | Nanometer multiple-layer composite thermal insulation material and preparation method thereof |
| CN102071879B (en) * | 2011-01-07 | 2013-07-10 | 中国石油集团渤海石油装备制造有限公司 | Novel prestressed heat-insulation oil pipe |
| CN202278789U (en) * | 2011-09-15 | 2012-06-20 | 上海建冶科技工程股份有限公司 | Anti-corrosive compound coating with abrasion resistance and high-temperature resistance for steel structure sprayed with stainless steel |
| CN102943934A (en) * | 2012-11-09 | 2013-02-27 | 盘锦中际特种管材制造有限公司 | Composite nanometer aerogel anti-corrosion insulation oil tube |
| CN203067978U (en) * | 2013-01-22 | 2013-07-17 | 北京中加天和科技发展有限公司 | Composite oil pipe with anti-corrosion wear-resistant inner lining |
| CN203297779U (en) * | 2013-06-04 | 2013-11-20 | 无锡金顶石油管材配件制造有限公司 | High-temperature-resistant anti-oxidation heat insulation petroleum pipe |
| CN104100209B (en) * | 2014-04-03 | 2016-08-31 | 刘兴仁 | Insulated tubing is wrapped up in outside a kind of |
-
2014
- 2014-07-30 CN CN201410371030.3A patent/CN104100209B/en active Active
- 2014-07-30 CN CN201420423832.XU patent/CN204040923U/en not_active Withdrawn - After Issue
- 2014-10-31 CN CN201420642450.6U patent/CN204252846U/en not_active Withdrawn - After Issue
- 2014-10-31 CN CN201410601826.3A patent/CN104533306B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104100209A (en) | 2014-10-15 |
| CN204252846U (en) | 2015-04-08 |
| CN104100209B (en) | 2016-08-31 |
| CN204040923U (en) | 2014-12-24 |
| CN104533306A (en) | 2015-04-22 |
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