CN107351344B - A kind of nonmetallic oil pipe preparation method that oil gas field uses - Google Patents
A kind of nonmetallic oil pipe preparation method that oil gas field uses Download PDFInfo
- Publication number
- CN107351344B CN107351344B CN201710590329.1A CN201710590329A CN107351344B CN 107351344 B CN107351344 B CN 107351344B CN 201710590329 A CN201710590329 A CN 201710590329A CN 107351344 B CN107351344 B CN 107351344B
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- China
- Prior art keywords
- pipe
- tube body
- box cupling
- layer pipe
- enhancement layer
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
- B29C48/152—Coating hollow articles the inner surfaces thereof
- B29C48/153—Coating both inner and outer surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/18—Polymers of hydrocarbons having four or more carbon atoms, e.g. polymers of butylene, e.g. PB, i.e. polybutylene
Abstract
A kind of nonmetallic oil pipe preparation method that oil gas field uses, including tube body and box cupling, tube body and box cupling include refractory layer pipe, intermediate enhancement layer pipe and erosion resistant coating pipe, refractory layer pipe be molecular weight 150~3,200,000 the heat-proof macromolecule polymer that is polymerized under rigid catalyst of polyethylene or butadiene, intermediate enhancement layer pipe by resistance to mesohigh glass fibre, enhanced polyester fiber, aramid fiber, polyethylene fibre and netted high-tensile steel wires collectively constitute, erosion resistant coating pipe is polyethylene of the molecular weight 250~4,200,000, the refractory layer bore of tube body is d and its erosion resistant coating pipe outside diameter is D and the length is L, intermediate enhancement layer bore is equal to refractory layer pipe outside diameter and its outer diameter is equal to erosion resistant coating bore, L is equipped at tube body erosion resistant coating pipe both ends1Outer cone boss, length >=2 L of box cupling1And female cone boss is set in its refractory layer pipe, outer cone boss or female cone boss pass through screw thread compression molding and prepare taper pipe thread.
Description
Technical field
The invention belongs to exploitation of oil-gas field equipment technical field, prepared by the nonmetallic oil pipe that especially a kind of oil gas field uses
Method.
Background technique
The oil pipe that oil gas field uses at present is all made of seamless steel pipe and is processed into, and oil pipe includes tube body and box cupling, each tube body
Between mutually concatenation sealing implemented by the inner cone pipe screw thread at box cupling both ends, easily cause oil pipe abrasion, burn into use
Phenomena such as tube wall incrustation and Taper Pipe screw thread damage, these phenomenons lead to frequent well workover, and frequently well workover then reduces production of hydrocarbons
Efficiency leads to oil-gas mining increased costs.
Oil pipe is easy to wear, corrode and tube wall incrustation mostly uses carry out coating treatment in its inner wall at present, due to inboard wall of tube body
Derusting work be difficult to accomplish clean, thorough, cause inside coating adhesive force low, especially the low painting of adhesive force in use
Layer can be peeled off gradually, is detached from, and the coating impurity split away off even may also result in holddown, lead to the problem of new well workover.
Also have and install polyethylene liner additional in inboard wall of tube body to solve abrasion, corrosion and tube wall incrustation, but due to liner material
And install the reasons such as technique additional, there is liner and the bad factor of body abutment, is easy to produce liner layer removing, loosens, use
The problems such as service life is unstable.Furthermore installing liner additional needs clean to inner surface of tube body processing and processing requirement high, and when installation is interior
Lining needs the cumbersome technique such as undergauge, poling, heating, flange, and the manufacturing cost for installing liner additional is high.
Summary of the invention
To solve the above problems, the present invention provides the nonmetallic oil pipe preparation method that a kind of oil gas field uses, this method
The nonmetallic oil pipe prepared has excellent mechanical property, antiseptic property, wear-resisting property, thermal property, can be widely applied
In oil gas field, production cost and maintenance cost are reduced, improves oil gas field production efficiency.
For achieving the above object, the present invention adopts the following technical scheme:
A kind of nonmetallic oil pipe preparation method that oil gas field uses, nonmetallic oil pipe include tube body and box cupling, tube body it is interior
Diameter, outer diameter and length dimension are executed by oil gas field standard used in connection with, and box cupling implements Butt sealing, preparation method to two root canal bodies
Using arrive screw extruder, screw thread moulding press, it is characterized in that:
Tube body and box cupling include that refractory layer pipe, intermediate enhancement layer pipe and erosion resistant coating pipe, refractory layer pipe are existed by molecular weight
The heat-proof macromolecule polymer composition that 150~3,200,000 polyethylene or butadiene is polymerized under rigid catalyst,
Intermediate enhancement layer pipe is by the glass fibre of resistance to mesohigh, enhanced polyester fiber, aramid fiber, polyethylene fibre and netted high strength steel
Silk collectively constitutes, and erosion resistant coating pipe is made of molecular weight in 250~4,200,000 polyethylene；
The refractory layer bore of tube body is set as d and its erosion resistant coating pipe outside diameter is set as D and its length is set as L, intermediate
The internal diameter of enhancement layer pipe is equal to the outer diameter of refractory layer pipe, and the outer diameter of intermediate enhancement layer pipe is equal to the internal diameter of erosion resistant coating pipe, in tube body
It is L that the both ends of erosion resistant coating pipe, which are equipped with length,1Outer cone boss, L1Less than L, each outer cone boss is molded by screw thread
Molding is prepared with outer taper pipe thread；Length >=2L of box cupling1, it is equipped with female cone boss in the refractory layer pipe of box cupling, it is each described
Female cone boss internal diameter is prepared with entire body inner cone pipe screw thread by screw thread compression molding, and the nominal bore diameter of inner cone pipe screw thread is equal to outer
The nominal outside diameter of taper pipe thread, by the outer taper pipe thread of the adjacent two root canals body of entire body endosiphuncular tube thread connection of box cupling and with this
Analogize；
When preparing tube body:
1. polyethylene or butadiene and rigid catalyst are placed in high speed agitator, high-speed stirred 3~30 minutes
Discharging obtains heat-proof macromolecule polymer afterwards, is then dried for standby heat-proof macromolecule polymer；
2. intermediate enhancement layer pipe is cleaned up and is preheated 5 minutes at 30~60 DEG C, then in intermediate enhancement layer pipe
Cooling is spare after surfaces externally and internally uniformly coats binding resin；
3. by intermediate enhancement layer pipe sleeve on the design position of screw extruder, by screw extruder by heat-proof macromolecule
Polymer squeezes in the inner hole of intermediate enhancement layer pipe, cools down in mould and makes the wall thickness control of inner tube in 0.6~3.5mm, cooling
Semi-finished product tube body is prepared by greater than L progress excision forming afterwards, the internal diameter of the semi-finished product tube body should meet the d；
4. the semi-finished product in 3. are covered on the design position of screw extruder, by screw extruder by polyethylene
It squeezes in the outer circle of intermediate enhancement layer pipe, cooled down in mould and makes the wall thickness control of inner tube in 1.2~5.4mm, press institute after cooling
It states L progress excision forming and prepares finished product tube body, the outer diameter of the finished product tube body should meet the D；
Have it is above-mentioned 1.~2. under the conditions of prepare box cupling when:
5. by intermediate enhancement layer pipe sleeve on the design position of screw extruder, by screw extruder by heat-proof macromolecule
Polymer squeezes in the inner hole of intermediate enhancement layer pipe, cools down in mould and makes the wall thickness control of inner tube in 0.6~3.5mm, cooling
Semi-finished product box cupling is prepared by greater than L progress excision forming afterwards, the internal diameter of the semi-finished product box cupling should be less than the D；
6. covering the semi-finished product box cupling in 5. on the design position of screw extruder, will be gathered by screw extruder
Ethylene squeezes in the outer circle of intermediate enhancement layer pipe, cools down in mould and makes the wall thickness control of inner tube in 1.2~5.4mm, after cooling
By >=2L1It carries out excision forming and prepares finished product box cupling；
The finished product tube body or the finished product box cupling are individually placed to prepare both ends on screw thread moulding press to be L1's
Outer taper pipe thread tube body or >=2L1Endosiphuncular tube threaded collar joint, it is desirable that tube body and box cupling are provided with following technical performance:
Long-term hydrostatic strength >=15MPa of tube body and box cupling；
Tensile strength >=126MPa of tube body and box cupling and yield strength control at 105~134MPa [25 DEG C]；
The heatproof softening point of tube body and box cupling reaches 150 DEG C；
The density of texture of tube body and box cupling is controlled in 0.941~1.56g/cm3。
Above-mentioned rigidity catalyst is the rigid polymer with binding function group and hole.
Above-mentioned netted high-tensile steel wires are that the Wrapping formed reticular structure of steel wire left-and-right spiral or steel wire winding are molding
Helicoidal structure.
Due to using technical solution as described above, the present invention generates following good effect:
1, the tube body of oil pipe of the present invention and box cupling its wearability are 4 times of ordinary steel tube body and box cupling, through measuring and calculating than common
The transfer efficiency of steel tube body and box cupling can be improved 20% or so.
2, refractory layer pipe is gathered by the heat-proof macromolecule that polyethylene or butadiene are polymerized under rigid catalyst
Object is closed, the heat resistance of tube body and box cupling can be significantly improved.
3, the tube body of oil pipe of the present invention and box cupling density are only 1/5th or so of ordinary steel tube body and box cupling density, but
Coefficient of friction is only 1/6th or so of ordinary steel tube body and box cupling.
4, the outer taper pipe thread of tube body and the inner cone pipe screw thread of box cupling meet relevant criterion, do not change the existing work of oil gas field
Industry technique.
5, preparation method of the invention is simple, easy to operate, equipment investment is small, is easy to large-scale production, can save big dimension
Material mitigates the manipulation strength of oil gas field worker, is useful in very much oil gas field popularization and use.
Detailed description of the invention
Fig. 1 is axial diagrammatic cross-sectional view of the invention.
Fig. 2 is the radial diagrammatic cross-sectional view of tube body of the present invention.
In above-mentioned figure: 1- tube body；1.1- refractory layer pipe；Enhancement layer pipe among 1.2-；1.3- erosion resistant coating pipe；2- box cupling.
Specific embodiment
The present invention is a kind of nonmetallic oil pipe preparation method that oil gas field uses, and the nonmetallic oil pipe that oil gas field uses includes
Tube body and box cupling, tube body and box cupling are the entirety of oil pipe interwoveness, and only nonmetallic tube body and nonmetallic box cupling could be constituted
Nonmetallic oil pipe, this is also that tube body and box cupling are combined into one one of the reasons why stating altogether by the present invention.
Preparation method of the invention uses screw extruder, screw thread moulding press, and screw extruder and screw thread moulding press are equal
For conventional equipment and commercially available.
In conjunction with Fig. 1-2, nonmetallic oil pipe of the invention includes tube body 1 and box cupling 2, internal diameter, outer diameter and the length ruler of tube body 1
Very little to execute by oil gas field standard used in connection with, box cupling 2 implements Butt sealing to two root canal bodies.Tube body 1 and box cupling 2 include resistance to
Thermosphere pipe 1.1, intermediate enhancement layer pipe 1.2 and erosion resistant coating pipe 1.3, poly- second of the refractory layer pipe 1.1 by molecular weight 150~3,200,000
The heat-proof macromolecule polymer composition that alkene or butadiene are polymerized under rigid catalyst, the rigidity catalyst are
Rigid polymer with binding function group and hole.Glass fibre, enhanced polyester of the intermediate enhancement layer pipe 1.2 by resistance to mesohigh
Fiber, aramid fiber, polyethylene fibre and netted high-tensile steel wires collectively constitute, and the netted high-tensile steel wires are steel wire left-and-right spirals
The Wrapping formed molding helicoidal structure of reticular structure or steel wire winding.Erosion resistant coating pipe 1.3 is by molecular weight 250~420
Ten thousand polyethylene composition.Refractory layer pipe 1.1, intermediate enhancement layer pipe 1.2 and erosion resistant coating pipe 1.3 form integral structure, although its
Intensity index is slightly below metal oil conduit, but it combines fine and close, securely, is not in layering and peeling and light-weight, complete
The use of full up foot oil gas field.
There are the materials such as good anti-corrosion, wear-resisting, self-lubricating, surface be smooth using ultra-high molecular weight polyethylene or butadiene
The problems such as expecting characteristic, can solve abrasion, the corrosion and scaling of nonmetallic oil pipe, improves resistance to compression and the pull resistance of nonmetallic oil pipe
Energy.
1.1 internal diameter of refractory layer pipe of tube body 1 is set as d and its 1.3 outer diameter of erosion resistant coating pipe is set as D and its length is set as
L, preferred tube body refers to outer diameter D=φ 73mm and it refers to internal diameter d=φ 62mm.The internal diameter of intermediate enhancement layer pipe 1.2 is equal to
The outer diameter of refractory layer pipe 1.1, the outer diameter of intermediate enhancement layer pipe 1.2 is equal to the internal diameter of erosion resistant coating pipe 1.3, in 1 erosion resistant coating pipe of tube body
It is L that 1.3 both ends, which are equipped with length,1Outer cone boss, L1Less than L, each outer cone boss is pressed and molded by screw thread and is made
Have outer taper pipe thread.
The length of box cupling is greater than 2L1, it is equipped with female cone boss in the refractory layer pipe 1.1 of box cupling 2, each female cone is convex
Platform internal diameter is prepared with entire body inner cone pipe screw thread by screw thread compression molding, and the nominal bore diameter of inner cone pipe screw thread is equal to outer taper pipe thread
Nominal outside diameter, pass through the outer taper pipe thread and so on of the two root canal body of entire body endosiphuncular tube thread connection of box cupling.Box cupling can
Depending on above-mentioned preferred tube body size, the outer diameter of box cupling is subject to and is not interfered with existing casing, oil well pump.
The present invention is when preparing tube body:
1. polyethylene and butadiene and rigid catalyst are placed in high speed agitator, after high-speed stirred 3~30 minutes
Discharging obtains heat-proof macromolecule polymer, is then dried for standby heat-proof macromolecule polymer.
2. intermediate enhancement layer pipe is cleaned up and is preheated 5 minutes at 30~60 DEG C, then in intermediate enhancement layer pipe
Cooling is spare after surfaces externally and internally uniformly coats binding resin.
3. by intermediate enhancement layer pipe sleeve on the design position of screw extruder, by screw extruder by heat-proof macromolecule
Polymer squeezes in the inner hole of intermediate enhancement layer pipe, cools down in mould and makes the wall thickness control of inner tube in 0.6~3.5mm, cooling
Semi-finished product tube body is prepared by greater than L progress excision forming afterwards, the internal diameter of the semi-finished product tube body should meet the d.
4. the semi-finished product in 3. are covered on the design position of screw extruder, by screw extruder by polyethylene
It squeezes in the outer circle of intermediate enhancement layer pipe, cooled down in mould and makes the wall thickness control of inner tube in 1.2~5.4mm, press institute after cooling
It states L progress excision forming and prepares finished product tube body, the outer diameter of the finished product tube body should meet the D.Cooling temperature presses spiral shell in mould
Bar extruder conventional arrangement.
Have it is above-mentioned 1.~2. under the conditions of prepare box cupling when:
5. by intermediate enhancement layer pipe sleeve on the design position of screw extruder, by screw extruder by heat-proof macromolecule
Polymer squeezes in the inner hole of intermediate enhancement layer pipe, cools down in mould and makes the wall thickness control of inner tube in 0.6~3.5mm, cooling
Semi-finished product box cupling is prepared by greater than L progress excision forming afterwards, the internal diameter of the semi-finished product box cupling should be less than the D.
6. covering the semi-finished product box cupling in 5. on the design position of screw extruder, will be gathered by screw extruder
Ethylene squeezes in the outer circle of intermediate enhancement layer pipe, cools down in mould and makes the wall thickness control of inner tube in 1.2~5.4mm, after cooling
By >=2L1It carries out excision forming and prepares finished product box cupling.
Actually the preparation process of finished product box cupling is such as same as production tube body, and only the inside/outside diameter size of finished product box cupling is big
In the inside/outside diameter size of finished product tube body, other relative dimensions such as inner cone pipe screw thread carry out in the following manner.
The finished product tube body or the finished product box cupling are individually placed to prepare both ends on screw thread moulding press to be L1's
Outer taper pipe thread tube body or >=2L1Endosiphuncular tube threaded collar joint, it is desirable that tube body and box cupling are provided with following technical performance:
Long-term hydrostatic strength >=15MPa of tube body and box cupling；
Tensile strength >=126MPa of tube body and box cupling and yield strength control at 105~134MPa [25 DEG C]；
The heatproof softening point of tube body and box cupling reaches 150 DEG C；
The density of texture of tube body and box cupling is controlled in 0.941~1.56g/cm3。
The present invention is during the preparation process: ultrasonic scanning device, rice remeasurement control dress are provided on its each production line
It sets, the wall thickness monitoring full-automatic computers control system such as controller, and dynamic control is carried out to tube body and box cupling during the preparation process,
To ensure the quality of production of nonmetallic oil pipe.
Claims (2)
1. the nonmetallic oil pipe preparation method that a kind of oil gas field uses, nonmetallic oil pipe includes tube body and box cupling, the internal diameter of tube body,
Outer diameter and length dimension are executed by oil gas field standard used in connection with, and box cupling implements Butt sealing to two root canal bodies, and preparation method makes
Screw extruder, screw thread moulding press are used, it is characterized in that:
Tube body (1) and box cupling (2) include refractory layer pipe (1.1), intermediate enhancement layer pipe (1.2) and erosion resistant coating pipe (1.3), resistance to
Thermosphere pipe by molecular weight 150~3,200,000 polyethylene or butadiene be polymerized under rigid catalyst it is heat-resisting
High molecular polymer composition, intermediate enhancement layer pipe by resistance to mesohigh glass fibre, enhanced polyester fiber, aramid fiber, polyethylene
Fiber and netted high-tensile steel wires collectively constitute, and erosion resistant coating pipe is made of molecular weight in 250~4,200,000 polyethylene；
The refractory layer bore of tube body is set as d and its erosion resistant coating pipe outside diameter is set as D and its length is set as L, and centre is reinforced
The internal diameter of layer pipe is equal to the outer diameter of refractory layer pipe, and the outer diameter of intermediate enhancement layer pipe is equal to the internal diameter of erosion resistant coating pipe, in tube body anti-corrosion
It is L that the both ends of layer pipe, which are equipped with length,1Outer cone boss, L1Less than L, each outer cone boss is pressed and molded by screw thread
It is prepared with outer taper pipe thread；Length >=2L of box cupling1, female cone boss, each inner circle are equipped in the refractory layer pipe of box cupling
Cone boss internal diameter is prepared with entire body inner cone pipe screw thread by screw thread compression molding, and the nominal bore diameter of inner cone pipe screw thread is equal to outer Taper Pipe
The nominal outside diameter of screw thread, by the outer taper pipe thread of the adjacent two root canals body of entire body endosiphuncular tube thread connection of box cupling and with such
It pushes away；
When preparing tube body:
1. polyethylene or butadiene and rigid catalyst are placed in high speed agitator, go out after high-speed stirred 3~30 minutes
Material obtains heat-proof macromolecule polymer, is then dried for standby heat-proof macromolecule polymer；
2. intermediate enhancement layer pipe is cleaned up and is preheated 5 minutes at 30~60 DEG C, then inside and outside intermediate enhancement layer pipe
Cooling is spare after surface uniformly coats binding resin；
3. heat-proof macromolecule is polymerize by screw extruder by intermediate enhancement layer pipe sleeve on the design position of screw extruder
Object squeezes in the inner hole of intermediate enhancement layer pipe, cools down in mould and makes the wall thickness control of inner tube in 0.6~3.5mm, presses after cooling
Excision forming is carried out greater than the L and prepares semi-finished product tube body, and the internal diameter of the semi-finished product tube body should meet the d；
4. covering the semi-finished product in 3. on the design position of screw extruder, polyethylene is squeezed by screw extruder
In the outer circle of intermediate enhancement layer pipe, cooled down in mould and make the wall thickness control of inner tube in 1.2~5.4mm, it is cooling after by the L into
Row excision forming prepares finished product tube body, and the outer diameter of the finished product tube body should meet the D；
Have it is above-mentioned 1.~2. under the conditions of prepare box cupling when:
5. heat-proof macromolecule is polymerize by screw extruder by intermediate enhancement layer pipe sleeve on the design position of screw extruder
Object squeezes in the inner hole of intermediate enhancement layer pipe, cools down in mould and makes the wall thickness control of inner tube in 0.6~3.5mm, presses after cooling
Excision forming is carried out greater than the L and prepares semi-finished product box cupling, and the internal diameter of the semi-finished product box cupling should be less than the D；
6. the semi-finished product box cupling in 5. is covered on the design position of screw extruder, by screw extruder by polyethylene
It squeezes in the outer circle of intermediate enhancement layer pipe, cooled down in mould and makes the wall thickness control of inner tube in 1.2~5.4mm, pressed after cooling >=
2L1It carries out excision forming and prepares finished product box cupling；
The finished product tube body or the finished product box cupling are individually placed to prepare both ends on screw thread moulding press to be L1Outer Taper Pipe
Screw-thread pipe body or >=2L1Endosiphuncular tube threaded collar joint, it is desirable that tube body and box cupling are provided with following technical performance:
Long-term hydrostatic strength >=15MPa of tube body and box cupling；
Tensile strength >=126MPa of tube body and box cupling and yield strength control at 105~134MPa [25 DEG C]；
The heatproof softening point of tube body and box cupling reaches 150 DEG C；
The density of texture of tube body and box cupling is controlled in 0.941~1.56g/cm3；
Above-mentioned rigidity catalyst is the rigid polymer with binding function group and hole, and the rigid polymer is with fixed big
The small cross-linked polymer with shape and with determining collating sequence.
2. the nonmetallic oil pipe preparation method that a kind of oil gas field uses according to claim 1, it is characterized in that: netted high intensity
Steel wire is the Wrapping formed reticular structure of steel wire left-and-right spiral or the molding helicoidal structure of steel wire winding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590329.1A CN107351344B (en) | 2017-07-20 | 2017-07-20 | A kind of nonmetallic oil pipe preparation method that oil gas field uses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590329.1A CN107351344B (en) | 2017-07-20 | 2017-07-20 | A kind of nonmetallic oil pipe preparation method that oil gas field uses |
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| Publication Number | Publication Date |
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| CN107351344A CN107351344A (en) | 2017-11-17 |
| CN107351344B true CN107351344B (en) | 2019-04-23 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562623A (en) * | 2004-03-23 | 2005-01-12 | 孙建宁 | Flame retardant antistatic high intension and tough composite tube made from polyvinyl chloride and preparation method |
| CN101992555A (en) * | 2010-11-05 | 2011-03-30 | 赵树辉 | Processing method of net framework enhanced plastic composite pipe and manufactured composite pipe |
| WO2014070034A1 (en) * | 2012-11-01 | 2014-05-08 | Alyavdin Dmitry Vyaceslavovich | Method of manufacturing of the multilayered intellectual heat expand sleeve from thermoplastic polymer |
| CN104334950A (en) * | 2012-03-14 | 2015-02-04 | 皮派克控股有限公司 | Multilayer pipeline in a polymer material, device for manufacture of the multilayer pipeline and a method for manufacturing the multilayer pipeline |
-
2017
- 2017-07-20 CN CN201710590329.1A patent/CN107351344B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562623A (en) * | 2004-03-23 | 2005-01-12 | 孙建宁 | Flame retardant antistatic high intension and tough composite tube made from polyvinyl chloride and preparation method |
| CN101992555A (en) * | 2010-11-05 | 2011-03-30 | 赵树辉 | Processing method of net framework enhanced plastic composite pipe and manufactured composite pipe |
| CN104334950A (en) * | 2012-03-14 | 2015-02-04 | 皮派克控股有限公司 | Multilayer pipeline in a polymer material, device for manufacture of the multilayer pipeline and a method for manufacturing the multilayer pipeline |
| WO2014070034A1 (en) * | 2012-11-01 | 2014-05-08 | Alyavdin Dmitry Vyaceslavovich | Method of manufacturing of the multilayered intellectual heat expand sleeve from thermoplastic polymer |
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| Publication number | Publication date |
|---|---|
| CN107351344A (en) | 2017-11-17 |
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