CN204040922U - Insulated tubing is wrapped up in outside a kind of wear-and corrosion-resistant - Google Patents
Insulated tubing is wrapped up in outside a kind of wear-and corrosion-resistant Download PDFInfo
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- CN204040922U CN204040922U CN201420423800.XU CN201420423800U CN204040922U CN 204040922 U CN204040922 U CN 204040922U CN 201420423800 U CN201420423800 U CN 201420423800U CN 204040922 U CN204040922 U CN 204040922U
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- oil pipe
- pipe
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Abstract
The utility model discloses outside a kind of wear-and corrosion-resistant and wrap up in insulated tubing, be made up of anticorrosion antiwear layer, the outer isolation layer of oil pipe, the outer corrosion protective covering of isolation layer in oil pipe, oil pipe.Manage in described oil pipe internal fixtion setting-in one; Wrap up the outer isolation layer of one deck equably at the interlude outer wall of described oil pipe, outside isolation layer outer wall, wrap up in the outer corrosion protective covering of one deck; At connection box cupling down operation section and box cupling outer wrapping one deck isolation layer of described oil pipe, at this isolation layer, one section of isolation layer protection steel sleeve is installed outward.The utility model effectively can reduce crude oil and flows to the loss of well head process Crude Oil own temperature from shaft bottom and improve crude oil fluidised form in the wellbore.Solve anticorrosion in tubing string rod and tube partial-wear, oil pipe, fouling, wax deposition, oil pipe are outer anticorrosion, reduce the frictional resistance between rod-pumped well rod tube, finally reach energy-saving and emission-reduction, reduce rod tube and damage, reduce underground work workload, greatly reduce cost of oil production.
Description
Technical field
The utility model relates to outside a kind of wear-and corrosion-resistant being applicable to oil extraction in oil field tubing string wraps up in insulated tubing.
Background technology
In the actual production process of oil field, generally adopting pure light pipe (not adding any heat-insulation and heat-preservation measure) flow string to produce at present, there is the problem that crude oil own temperature loses in a large number in this oil production method; In oil pipe anti-corrosive process, be typically employed in the solution that anticorrosive paint is coated in oil pipe endosexine, due to the rust dirt in oil pipe, easy-clear is clean and coating is thinner, therefore there is the problems such as anticorrosive coat easily comes off, application life is short; To solution rod-pumped well rod and tube partial-wear, generally adopt the technology such as glass-lined, eccentric abrasion prevention well head, these technology exist glass-lined easily fragmentation, eccentric abrasion prevention well head operation use workload is large, the problems such as eccentric abrasion prevention effect is poor.Even if having employed anticorrosion, wear-resisting technology, traditional oil pipe also also exists the problem of the own temperature loss in downhole crude extraction process, makes the crude oil fluidity in pit shaft poor, increases oil pumper load, waste electric energy, and rod and tube partial-wear fails thoroughly to solve.
Summary of the invention
The purpose of this utility model is to provide outside a kind of wear-and corrosion-resistant and wraps up in insulated tubing, to solve pit shaft, there is well heat insulation, wear-resisting, anticorrosion, wax control, scale-preventing performance, effectively can reduce crude oil flow to the temperature loss of well head process Crude Oil self from shaft bottom and improve the technical problem of crude oil fluidised form in the wellbore etc.
The technical solution adopted in the utility model is as follows:
Wrap up in insulated tubing outside a kind of wear-and corrosion-resistant, form oil pipe by steel pipe column; The two ends of described oil pipe are for being processed 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;
Outside the interlude outer wall of described oil pipe (2) wraps up one equably, wrap up in corrosion protective covering, outside the oil-pipe external wall and oil pipe of oil pipe (2) interlude, wrap up in the outer isolation layer (3) of application one deck between corrosion protective covering;
In described oil pipe (2) internal fixtion setting-in one, manage (1), the length of interior pipe (1) is greater than oil pipe (2), and the both ends of the surface of interior pipe are given prominence to outside oil pipe (2) end face.
Described outer corrosion protective covering of wrapping up in is isolation layer protection steel band (4), at the outer anticorrosive heat insulating topping (5) of isolation layer protection steel band (4) outside parcel one deck.
At connection box cupling (13) and the lever piece place of described oil pipe (2), its periphery is fixed with first circular thermal insulation protection pipe box (6-1) of two prefabricated in advance docking, and first circular thermal insulation protection pipe box (6-1) has two fastening steel bushings of slip screw thread (10-1) tightened, (10-2), at the lever piece place, connection box cupling (13) below of described oil pipe (2), its periphery is fixed with after lower semi-circular thermal insulation protection pipe box (6-2) docking that two docking buckle well buckles well, the lower end of lower semi-circular thermal insulation protection pipe box (6-2) is bolted with the fastening steel bushing of lower slider screw thread (10-3) and tightens, the upper end of lower semi-circular thermal insulation protection pipe box (6-2) is covered with a pair semicircle stainless steel steel bushing (7), this semicircle stainless steel steel bushing (7) is tightened by fixed screw (9) and ring stainless steel steel bushing (8), the fastening steel bushing of slip screw thread (10-2) lower end that described ring stainless steel steel bushing (8) upper end and first circular thermal insulation protection pipe box (6-1) have is spirally connected, O-ring seal (11) is provided with between the protective sleeve that lever piece and interlude join, first circular thermal insulation protection pipe box (6-1), between lower semi-circular thermal insulation protection pipe box (6-2) and oil pipe (2) outer wall, be respectively equipped with the semicircle isolation layer (3-1) of two docking, (3-2). between ring stainless steel steel bushing (8) top and tubing coupling (13) below, be provided with an annular heat pad (12).
Described interior pipe (1) is thermoplastic high density's polyethylene compound pipe or ultrahigh molecular weight polyethylene abrasion-proof composite material tube, and interior pipe (1) thickness is 3.8 ~ 4mm.
By end socket and the interior tubular elastic restore funcitons of both ends of the surface, interior pipe is made to be fastened in oil pipe firmly.
The interlude outer wall of described oil pipe (2) wraps up the outer isolation layer (3) of one deck, and outer insulation thickness is 5 ~ 6mm, and outer barrier material is aeroge nano super felt insulation heat-insulating heat-preserving material.
One deck isolation layer protection steel band (4) is wrapped up in outside the outer wall of the isolation layer (3) of the interlude of described oil pipe (2); this protection thickness of strips is 0.2 ~ 0.4mm; selected materials is the ordinary steel belts that 0.2mm is thick, 6mm is wide; steel band adopts the mode be wound around to be entangled in the outer wall of outer isolation layer (3), overlaps 20 ~ 30% between steel band.
Isolation layer protection steel band (4) of the interlude of described oil pipe (2) is outer more outward wraps up in the outer anticorrosive heat insulating topping (5) of one deck; wrapping up in anticorrosive heat insulating protective layer thickness is outward 2.6 ~ 2.8mm, and this outer anticorrosive heat insulating topping material therefor of wrapping up in is high-density polyethylene composite material or ultra-high molecular weight polyethylene composite material.
At two lever piece places of the upper 500mm and lower 400mm of the connection box cupling (13) of described oil pipe (2), first circular thermal insulation protection pipe box (6-1) and lower semi-circular thermal insulation protection pipe box (6-2) is set.
The utility model has the advantages that: at home and abroad propose first: the novel concept of " not adding under the condition that any external world artificially supplements the energy; make full use of stratum self heat energy; by increasing oil pipe heat insulating function on oil recovery flow string; reduce crude oil and flow to own temperature loss well head process from shaft bottom, realize improving Wellhead crue oil temperature ".
Thoroughly can solve the technical problem such as a large amount of temperature losses, oil pipe antiscale, the Wax proofing inside and outside corrosion of oil pipe and rod and tube partial-wear and crude oil flow to well head during from shaft bottom, reduce rod tube to damage, reduce the frictional resistance between rod tube, reduce oil pumper load and reach more significant power savings, reduce underground work workload, reduce the temperature loss of downhole crude self, realize improving former Wellhead crue oil temperature 15 ~ 30 DEG C in actual production, solve the practical problem in lower well construction, transportation, greatly reduce cost of oil production.Finally reach energy-saving and emission-reduction, reduce rod tube damage, reduce underground work workload, greatly reduce cost of oil production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the tubing coupling down operation section local I detail of construction of Fig. 1.
Fig. 3 be Fig. 1 along A-A direction sectional view.
Fig. 4 be Fig. 2 along B-B direction sectional view.
Fig. 5 be Fig. 2 along C-C direction sectional view.
Fig. 6 be Fig. 2 along D-D direction view.
Detailed description of the invention
As shown in Figure 1 and Figure 2: outside a kind of wear-and corrosion-resistant, wrap up in insulated tubing, the oil pipe of anticorrosion antiwear layer in steel oil pipe (steel pipe column), oil pipe, the outer isolation layer of oil pipe, the outer corrosion protective covering composition of isolation layer is comprised.The two ends of described oil pipe are for being processed 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.In described oil pipe (2) internal fixtion setting-in one, manage (1), the length of interior pipe (1) is greater than oil pipe, and the two ends of interior pipe are given prominence to outside oil pipe end face.An outer isolation layer (3) is wrapped up equably at the interlude outer wall of described oil pipe (2); and outside the outer wall of isolation layer (3), wrap up in one deck isolation layer protection steel band (4), finally at the outer anticorrosive heat insulating topping (5) of isolation layer protection steel band (4) outside parcel one deck.
At the upper 500mm lever piece place of the connection box cupling (13) of described oil pipe (2); after oil pipe and tubing coupling are tightened by site operation personnel on request; after prefabricated in advance two first circular thermal insulation protection pipe box (6-1) docking are buckled well; upper and lower for first circular thermal insulation protection pipe box (6-1) two the fastening steel bushings of slip screw thread (10-1), (10-2) are tightened; finally installed by O-ring seal (11), whole installation process completes.
400mm lever piece place under the connection box cupling (13) of described oil pipe (2); after oil pipe and tubing coupling being tightened on request in processing factory building; after two lower semi-circular thermal insulation protection pipe box (6-2) docking are buckled well; the fastening steel bushing of lower slider screw thread (10-3) of lower semi-circular thermal insulation protection pipe box (6-2) is tightened; fixed screw (9) on semicircle stainless steel steel bushing (7) and ring stainless steel steel bushing (8) are tightened; finally installed by O-ring seal (11), whole installation process completes.
First circular thermal insulation protection pipe box (6-1), between lower semi-circular thermal insulation protection pipe box (6-2) and oil pipe (2) outer wall, be respectively equipped with the semicircle isolation layer (3-1) of two docking, (3-2). between ring stainless steel steel bushing (8) top and tubing coupling (13) below, be provided with an annular heat pad (12).
See Fig. 3,4,5,6, described interior pipe (1) is for having thermoplastic high density's polyethylene compound pipe or the ultrahigh molecular weight polyethylene abrasion-proof composite material tube of wear-resisting, anticorrosion, wax control, scale-preventing performance, and interior pipe (1) thickness is 3.8 ~ 4mm.Interior pipe material therefor has fabulous wear-resisting, corrosion-resistant function, efficiently solves the technical problem of oil pipe internal corrosion and rod and tube partial-wear.
Described oil pipe (2) both ends of the surface are enclosed in the outer wall at the two ends of described interior pipe (1).
The interlude outer wall of described oil pipe (2) wraps up the outer isolation layer (3) of one deck equably, and outer insulation thickness is 6mm.Outer isolation layer material therefor is aeroge nano super felt insulation heat-insulating heat-preserving material, and this material has fabulous heat insulation and water-proof function.
Outside the outer wall of the isolation layer (3) of the interlude of described oil pipe (2), wrap up in one deck isolation layer protection steel band (4), this protection thickness of strips is 0.2 ~ 0.4mm, and selected materials is the ordinary steel belts that 0.2mm is thick, 6mm is wide.Steel band adopts the mode be wound around to be entangled in the outer wall of outer isolation layer (3), overlaps 20 ~ 30% between steel band.
The outer anticorrosive heat insulating topping (5) of one deck is wrapped up in again outward outward at isolation layer protection steel band (4) of the interlude of described oil pipe (2); wrapping up in anticorrosive heat insulating protective layer thickness is outward 2.6 ~ 2.8mm, and this outer anticorrosive heat insulating topping material therefor of wrapping up in is high-density polyethylene composite material or ultra-high molecular weight polyethylene composite material.Wrap up in anticorrosive heat insulating topping outward and there is outer anticorrosion and heat insulation, defencive function.
At the process mounting means at two lever piece places of the upper 500mm and lower 400mm of the connection box cupling (13) of described oil pipe (2) be: after oil pipe and tubing coupling are connected at the construction field (site); isolation layer (3) is wrapped in two lever pieces and box cupling (13) outside; after again two semicircle thermal insulation protection pipe box (6) docking being buckled well; finally three, the upper, middle and lower fastening steel bushing of slip screw thread (10) is tightened, and upper and lower two O-ring seals are installed.These two lever pieces constitute jointly a complete structure design by heat insulating mattress (12) under the fixed screw (9) on isolation layer (3), stainless steel protection steel bushing (6), the fastening steel bushing of stainless steel slip screw thread (10), ring stainless steel steel bushing (8), semicircle stainless steel steel bushing (7), semicircle stainless steel steel bushing (7), box cupling.By their conbined usage, ensure that the realization of heat insulation, the internal and external anti-corrosive of whole tubing string, wear-resisting, impact resistance function.Make not destroy during constructing operation heat insulation and other functions of oil pipe simultaneously, utilize conventional tool just conveniently can complete job execution of going into the well.
Described ultrahigh molecular weight polyethylene abrasion-proof composite material is exactly adopt the good and excellent wear-resisting property modified ultra-high molecular weight polyethylene high-abrasive material of lubricating and wear-resisting agent, the high strength of nano heat-conductive agent blending and modifying and chemical crosslinking modified preparation, high-bearing, creep resistant, heat resistance.Above-mentioned material is see the ultrahigh molecular weight polyethylene abrasion-proof composite products of South China car Zhuzhou Times new materials Science Co., Ltd.
The feature of aeroge nano super felt insulation heat-insulating heat-preserving material be high temperature resistant, water resistance good.The thermal loss that heat-insulation and heat-preservation suppression efficiency is high, can suppress high temp objects, effectively suppresses the loss of heat radiation and heat conduction.The product that this nano High Seience Technology Co., Ltd. of materials'use ShaoXing,ZheJiang city produces.
Thermoplastic high density's polyethylene compound pipe, high-density polyethylene composite material or High molecular weight polyethylene composite material have wear-resisting, anticorrosion, wax control, scale-preventing performance.Above-mentioned material selects in Beijing the sell goods adding sky and development in science and technology Co., Ltd.
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 for prior art and the single-layer metal oil pipe (steel pipe column) processed.Described outer isolation layer has the extremely low aeroge nano super felt insulation heat-insulating heat-preserving material of extremely strong heat preservation and insulation, coefficient of thermal conductivity, is prior art product.Described interior pipe and to wrap up in anticorrosive heat insulating topping be outward high-density polyethylene composite material or the ultra-high molecular weight polyethylene composite material with wear-resisting, anticorrosion, wax control, scale-preventing performance is prior art product.With special equipment, interior pipe is embedded in oil pipe time embedded, when wrapping up in, anticorrosive heat insulating topping outer wall will be rolled in outside material with special equipment outward.Described oil pipe both ends of the surface are enclosed in the two ends outer wall of described interior pipe, and hot jacket docking mode can be adopted during installation to install.
The utility model by managing in oil pipe internal fixtion setting-in one; the outer isolation layer of one deck is wrapped up equably at oil-pipe external wall; by wrapping up one deck anticorrosive heat insulating topping outside outer isolation layer, (the outer isolation layer of protection while protection oil-pipe external wall does not corrode by medium mode that act as wrapping up in anticorrosive heat insulating topping does not outward damage by water erosion and other reasons again; ensure the effect of heat insulation of insulated tubing), wrap up in insulated tubing outside the wear-and corrosion-resistant that composition is overall.There are good heat insulation, wear-resisting, anticorrosion, antiscale, Wax proofing performance, effectively can improve former Wellhead crue oil temperature, improve crude oil fluidised form in the wellbore, solve rod and tube partial-wear, solve oil pipe internal corrosion, fouling, wax deposition, reduce the frictional force between rod tube, reduce oil pumper load, finally reach energy-saving and emission-reduction, reduce rod tube damage, reduce underground work workload, greatly reduce cost of oil production.
Claims (8)
1. wrap up in an insulated tubing outside wear-and corrosion-resistant, form oil pipe by steel pipe column; The two ends of described oil pipe are for being processed 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; It is characterized in that:
Outside the interlude outer wall of described oil pipe (2) wraps up one equably, wrap up in corrosion protective covering, outside the oil-pipe external wall and oil pipe of oil pipe (2) interlude, wrap up in the outer isolation layer (3) of application one deck between corrosion protective covering;
In described oil pipe (2) internal fixtion setting-in one, manage (1), the length of interior pipe (1) is greater than oil pipe (2), and the both ends of the surface of interior pipe are given prominence to outside oil pipe (2) end face.
2. wrap up in insulated tubing outside a kind of wear-and corrosion-resistant according to claim 1; it is characterized in that; described outer corrosion protective covering of wrapping up in is isolation layer protection steel band (4), at the outer anticorrosive heat insulating topping (5) of isolation layer protection steel band (4) outside parcel one deck.
3. wrap up in insulated tubing outside a kind of wear-and corrosion-resistant according to claim 1 and 2, it is characterized in that, at connection box cupling (13) and the lever piece place of described oil pipe (2), its periphery is fixed with first circular thermal insulation protection pipe box (6-1) of two prefabricated in advance docking, and first circular thermal insulation protection pipe box (6-1) has two fastening steel bushings of slip screw thread (10-1) tightened, (10-2), at the lever piece place, connection box cupling (13) below of described oil pipe (2), its periphery is fixed with after lower semi-circular thermal insulation protection pipe box (6-2) docking that two docking buckle well buckles well, the lower end of lower semi-circular thermal insulation protection pipe box (6-2) is bolted with the fastening steel bushing of lower slider screw thread (10-3) and tightens, the upper end of lower semi-circular thermal insulation protection pipe box (6-2) is covered with a pair semicircle stainless steel steel bushing (7), this semicircle stainless steel steel bushing (7) is tightened by fixed screw (9) and ring stainless steel steel bushing (8), the fastening steel bushing of slip screw thread (10-2) lower end that described ring stainless steel steel bushing (8) upper end and first circular thermal insulation protection pipe box (6-1) have is spirally connected, O-ring seal (11) is provided with between the protective sleeve that lever piece and interlude join, first circular thermal insulation protection pipe box (6-1), between lower semi-circular thermal insulation protection pipe box (6-2) and oil pipe (2) outer wall, be respectively equipped with the semicircle isolation layer (3-1) of two docking, (3-2). between ring stainless steel steel bushing (8) top and tubing coupling (13) below, be provided with an annular heat pad (12).
4. wrap up in insulated tubing outside a kind of wear-and corrosion-resistant according to claim 1, it is characterized in that: described interior pipe (1) is thermoplastic high density's polyethylene compound pipe or ultrahigh molecular weight polyethylene abrasion-proof composite material tube, and interior pipe (1) thickness is 3.8 ~ 4mm.
By end socket and the interior tubular elastic restore funcitons of both ends of the surface, interior pipe is made to be fastened in oil pipe firmly.
5. wrap up in insulated tubing outside a kind of wear-and corrosion-resistant according to claim 1, it is characterized in that: the interlude outer wall of described oil pipe (2) wraps up the outer isolation layer (3) of one deck, outer insulation thickness is 5 ~ 6mm, and outer barrier material is aeroge nano super felt insulation heat-insulating heat-preserving material.
6. wrap up in insulated tubing outside a kind of wear-and corrosion-resistant according to claim 2; it is characterized in that: outside the outer wall of the isolation layer (3) of the interlude of described oil pipe (2), wrap up in one deck isolation layer protection steel band (4); this protection thickness of strips is 0.2 ~ 0.4mm; selected materials is the ordinary steel belts that 0.2mm is thick, 6mm is wide; steel band adopts the mode be wound around to be entangled in the outer wall of outer isolation layer (3), overlaps 20 ~ 30% between steel band.
7. wrap up in insulated tubing outside a kind of wear-and corrosion-resistant according to claim 1; it is characterized in that: isolation layer protection steel band (4) of the interlude of described oil pipe (2) is outer more outward wraps up in the outer anticorrosive heat insulating topping (5) of one deck; wrapping up in anticorrosive heat insulating protective layer thickness is outward 2.6 ~ 2.8mm, and this outer anticorrosive heat insulating topping material therefor of wrapping up in is high-density polyethylene composite material or ultra-high molecular weight polyethylene composite material.
8. wrap up in insulated tubing outside a kind of wear-and corrosion-resistant according to claim 1; it is characterized in that: at two lever piece places of the upper 500mm and lower 400mm of the connection box cupling (13) of described oil pipe (2), first circular thermal insulation protection pipe box (6-1) and lower semi-circular thermal insulation protection pipe box (6-2) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423800.XU CN204040922U (en) | 2014-04-03 | 2014-07-30 | Insulated tubing is wrapped up in outside a kind of wear-and corrosion-resistant |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159571 | 2014-04-03 | ||
| CN201420159571.5 | 2014-04-03 | ||
| CN201420423800.XU CN204040922U (en) | 2014-04-03 | 2014-07-30 | Insulated tubing is wrapped up in outside a kind of wear-and corrosion-resistant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204040922U true CN204040922U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420423800.XU Withdrawn - After Issue CN204040922U (en) | 2014-04-03 | 2014-07-30 | Insulated tubing is wrapped up in outside a kind of wear-and corrosion-resistant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204040922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100210A (en) * | 2014-04-03 | 2014-10-15 | 刘兴仁 | Anticorrosion wear-resistant coated heat-insulation oil pipe |
-
2014
- 2014-07-30 CN CN201420423800.XU patent/CN204040922U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100210A (en) * | 2014-04-03 | 2014-10-15 | 刘兴仁 | Anticorrosion wear-resistant coated heat-insulation oil pipe |
| CN104533345A (en) * | 2014-04-03 | 2015-04-22 | 刘兴仁 | Abrasion-resistance and anti-corrosion wrapped heat insulation oil pipe |
| CN104100210B (en) * | 2014-04-03 | 2016-09-07 | 刘兴仁 | Insulated tubing is wrapped up in outside a kind of wear-and corrosion-resistant |
| CN104533345B (en) * | 2014-04-03 | 2017-04-19 | 刘兴仁 | Abrasion-resistance and anti-corrosion wrapped heat insulation oil pipe |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20160907 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |