CN105618716A - Zinc anode material and oil casing electric conduction connecting manner and machining method - Google Patents
Zinc anode material and oil casing electric conduction connecting manner and machining method Download PDFInfo
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- CN105618716A CN105618716A CN201610186842.XA CN201610186842A CN105618716A CN 105618716 A CN105618716 A CN 105618716A CN 201610186842 A CN201610186842 A CN 201610186842A CN 105618716 A CN105618716 A CN 105618716A
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- Prior art keywords
- zinc anode
- tubing
- casing
- anode material
- connection
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 73
- 239000011701 zinc Substances 0.000 title claims abstract description 73
- 239000010405 anode material Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000003754 machining Methods 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 230000000630 rising effect Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002203 pretreatment Methods 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000003373 anti-fouling effect Effects 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000003643 water by type Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 19
- 230000007797 corrosion Effects 0.000 abstract description 17
- 230000001681 protective effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003245 working effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000008398 formation water Substances 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 238000007430 reference method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/12—Electrodes characterised by the material
- C23F13/14—Material for sacrificial anodes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
- C23F2213/32—Pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention belongs to the technical field of oil and gas field corrosion and protection, and particularly relates to a zinc anode material and oil casing electric conduction connecting manner. The zinc anode material and oil casing electric conduction connecting manner comprises an oil casing and a zinc anode arranged on the outer surface of the oil casing, the outer surface of the oil casing is circumferentially covered with the zinc anode, and the contact face of the zinc anode and the oil casing is an electric conduction interface. The invention further provides a machining method for the zinc anode material and oil casing electric conduction connecting manner. After melted, the zinc anode is directly cast on the surface of the oil casing. By means of the scheme, the electric conduction connecting manner is changed from common point connection to face connection, maximum electric conduction is achieved, the problem of electric conduction connecting failures caused by local corrosion of the zinc anode is solved, and it is guaranteed that the zinc anode is brought into full play; and meanwhile, the zinc anode and the oil casing are in seamless and tight electric conduction connection, the anode provides stable and continuous protective currents, anode invalidation caused by uniform corrosion and gap corrosion of an anode material is effectively reduced, and the service life of the anode is remarkably prolonged.
Description
Technical field
The invention belongs to oil-gas field corrosion and protection technical field, it is specifically related to a kind of zinc anode material and tubing and casing conduction mode of connection and working method.
Background technology
In oilfield development process, tubing and casing is subject to the erosion of local water for a long time, there is the corrosion factors such as high salinity, hydrogen sulfide, dissolved oxygen, carbonic acid gas, sulphate reducing bacteria due to local water, under the compound action of the factors such as temperature, pressure, flow velocity and repeated stress, tubing and casing outer wall corrosion can be made serious.
Have in the world at present and put into operation more than the oil gas main pipeline of 1,000,000 Km, for ensureing the outer protection effect of pipeline, be widely used external anti-corrosion layer and add cathode protection technology, and become technical requirements and the standard of international generally accreditation and execution. For ensureing that oil and gas pipes long lifetime, safety are on active service, strengthen the external anti-corrosion layer of in-service pipeline and the evaluative meaning of galvanic protection effect is great. Galvanic protection is a kind of effective means of defence preventing tubing from corroding, and patent about this technology is more both at home and abroad, but generally exist conduction tie point few, easily come off, the easy phenomenon such as inefficacy.
The patents such as utility model patent (CN201713578U), utility model patent (CN201686745U), utility model patent (CN201738008U), utility model patent (CN202492582U), utility model patent (CN202482437U) are all by anode material casting in advance, and anode material and tubing and casing intimate are connected by various mode of connection. But owing to tie point is less, cannot be that protected metal carrying is for stable protective current.
Utility model patent (CN201704408U) discloses the sacrificial anode device of a kind of casing tube anti-corrosive Mulit-point Connection. This device, primarily of sacrificial anode, round steel, casing grip and silk cap composition, ensure that the firm of hollow cylindrical sacrificial anode, adds conducting of anode each several part. In this patent, although adding the UNICOM of anode with sleeve pipe, but still there is the problems such as premature failure.
Tubing and casing, due to reasons such as manufacture crafts, is not regular open circles cylinder, and especially external diameter each point is not quite similar. Therefore, anode material according to the pre-type casting moulding of sleeve outer size cannot seamless link tight with tubing and casing outer wall. When local water invades, gap can be entered and produce crevice corrosion, and then cause anode and tubing and casing loose contact and lost efficacy, even come off and cause blocking accident.
Summary of the invention
It is an object of the invention to overcome the problems referred to above of the prior art, it is provided that stablize sustainable protection electric current, effectively reduce the anode failure phenomenon that the uneven burn into crevice corrosion of anode material causes, significantly prolongation anode work-ing life.
For this reason, the present invention provides a kind of zinc anode material and tubing and casing conduction mode of connection, comprising tubing and casing and be located at the zinc anode of tubing and casing outside surface, described zinc anode circumference covers tubing and casing outside surface, and the contact surface of described zinc anode and tubing and casing is thermal interface.
Present invention also offers a kind of zinc anode material and the working method of tubing and casing conduction mode of connection, comprise the following steps:
Step one, casts position outside surface pre-treatment in advance by tubing and casing, it may also be useful to annular electro heating jacket heats, heat preservation for standby use;
Step 2, it may also be useful to metal die is heated by liquefied gas flame gun, is fixed on tubing and casing by metal die after spraying releasing agent and casts position in advance;
Step 3, by zinc anode heat fused, waters and casts from metal die, after cooling forming, and the demoulding and get final product.
Outside surface pre-treatment described in step one is removed by angle grinding machine black antifouling paste, the zone of oxidation of the attachment of tubing and casing outer wall, exposes tubing and casing steel body.
Annular electro heating jacket is used to heat described in step one, heat preservation for standby use casts position in advance by being fixed on tubing and casing with the annular electro heating jacket of automatic temp Controlling System, arranging heating stop temperature is 200 DEG C, switch on power, after bushing outer surface heating temperatures to design temperature, stop heating, electric heating cover is in keeping warm mode, soaking time 30 minutes, process uses infrared temperature-measuring gun simultaneously test oil sleeve pipe cast position surface temperature in advance, temperature range controls 200 DEG C �� 20 DEG C.
Using liquefied gas flame gun evenly to be heated by metal die 2 in step 2, it may also be useful to infrared temperature-measuring gun testing mould surface temperature, temperature range controls 120 DEG C �� 20 DEG C.
When metal die is heated to 120 DEG C �� 20 DEG C by step 2, first the cavity of metal die, cast gate and rising head is cleared up, to internal surface no-sundries, releasing agent is evenly sprayed at internal surface again, no sag, thickness equal one, in spraying process, continue to use the baking of liquefied gas flame gun, to surface cure.
After step 2 sprays releasing agent, it may also be useful to liquefied gas flame gun continues heating of metal mould, behind temperature to 200 DEG C �� 20 DEG C, metal die is fixed on tubing and casing and casts position in advance.
In step 3, zinc anode heat fused process, puts into resistance furnace by zinc anode, spreads one layer of wood charcoal powder on surface and is heated to zinc anode and fully melts in crucible.
After zinc anode heat fused, the zinc anode melt of fusing is contained into watering bag, metal temperature measurer is used to measure temperature, until when melt temperature reaches 550 DEG C �� 20 DEG C, pouring into fast in the cast gate of metal die, until stopping casting when rising head place has melt to emerge, treating cast gate, the basic condensation cured of rising head melt, cooling time is 5 ~ 10 minutes, can carry out mould off-type.
The useful effect of the present invention:
This kind of zinc anode material provided by the invention and tubing and casing conduction mode of connection and working method, after being melted by zinc anode, be directly cast in tubing and casing surface. By this scheme, conduction mode of connection becomes face by common some connection and connects, it is achieved that maximized conducts, solves the conduction Joint failure problem that zinc anode local corrosion causes, it is ensured that zinc anode gives full play to effect; Zinc anode and the seamless tight conduction connection of tubing and casing simultaneously, anode provides stablizes sustainable protection electric current, effectively reduces the anode failure phenomenon that the uneven burn into crevice corrosion of anode material causes, significantly prolongation anode work-ing life.
It is described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 adopts nearly reference method to the distance variation relation curve of the tubing and casing outer wall protection potential of the present invention in simulated formation water surrounding with anode pipe nipple.
In figure: 1, tubing and casing casts position in advance; 2, metal die.
Embodiment
Embodiment 1:
Present embodiments provide a kind of zinc anode material as shown in Figure 1 and tubing and casing conduction mode of connection, comprise tubing and casing and it is located at the zinc anode of tubing and casing outside surface, described zinc anode circumference covers tubing and casing outside surface, and the contact surface of described zinc anode and tubing and casing is thermal interface.
This kind of zinc anode material that the present embodiment provides and tubing and casing conduction mode of connection, zinc anode is directly cast in tubing and casing surface, and zinc anode inwall and tubing and casing outer wall direct conduction connect, and the contact surface of zinc anode and tubing and casing is thermal interface. Conduction mode of connection becomes face by common some connection and connects, it is achieved that maximized conducts, solves the conduction Joint failure problem that zinc anode local corrosion causes, it is ensured that zinc anode gives full play to effect.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of zinc anode material and the working method of tubing and casing conduction mode of connection, comprise the following steps:
Step one, casts position 1 outside surface pre-treatment in advance by tubing and casing, it may also be useful to annular electro heating jacket heats, heat preservation for standby use;
Step 2, it may also be useful to metal die 2 is heated by liquefied gas flame gun, is fixed on tubing and casing by metal die 2 after spraying releasing agent and casts position 1 in advance;
Step 3, by zinc anode heat fused, waters and casts from metal die 2, after cooling forming, and the demoulding and get final product.
The working method of the zinc anode material that the present embodiment provides and tubing and casing conduction mode of connection, after being melted by zinc anode, is directly cast in tubing and casing surface. By the seamless tight conduction connection of this scheme, zinc anode and tubing and casing, anode provides stablizes sustainable protection electric current, effectively reduces the anode failure phenomenon that the uneven burn into crevice corrosion of anode material causes, significantly prolongation anode work-ing life.
Embodiment 3:
Present embodiments provide a kind of zinc anode material and the working method of tubing and casing conduction mode of connection, comprise the following steps:
(1) tubing and casing is cast in advance surface, position 1 and carry out pre-treatment. Black antifouling paste, the zone of oxidation adhered to by tubing and casing outer wall are removed by angle grinding machine, expose casing steel body.
(2) casting position 1 in advance by being fixed on tubing and casing with the annular electro heating jacket of automatic temp Controlling System, arranging heating stop temperature is 200 DEG C, switches on power, after bushing outer surface heating temperatures to design temperature, stopping heating, electric heating cover is in keeping warm mode, soaking time 30 minutes. The while of use infrared temperature-measuring gun, position 1 surface temperature cast in advance by test oil sleeve pipe, and temperature range controls 200 DEG C �� 20 DEG C.
(3) liquefied gas flame gun is used evenly to be heated by metal die 2, it may also be useful to infrared temperature-measuring gun testing mould surface temperature, temperature range controls 120 DEG C �� 20 DEG C.
(4), when metal die 2 is heated to 120 DEG C �� 20 DEG C, the cleaning cavity of metal die 2, cast gate and rising head, to internal surface no-sundries. Releasing agent is evenly sprayed at internal surface, no sag, thickness equal one. In spraying process, continue to use the baking of liquefied gas flame gun, to surface cure.
(5) after spraying releasing agent, it may also be useful to liquefied gas flame gun continues heating of metal mould 2, behind temperature to 200 DEG C �� 20 DEG C, metal die 2 is fixed on tubing and casing and casts position 1 in advance.
(6) zinc anode is put into resistance furnace, spread one layer of wood charcoal powder gently on surface to prevent burning and minimizing scaling loss, be heated to zinc anode and fully melt in crucible.
(7) the zinc anode melt of fusing is contained into watering bag, it may also be useful to metal temperature measurer measures temperature, until when melt temperature reaches 550 DEG C �� 20 DEG C, pouring into fast in the cast gate of metal die 2, until stopping casting when rising head place has melt to emerge.
(8) cast gate, the basic condensation cured of rising head melt, cooling time is 5 ~ 10 minutes, can carry out mould off-type.
Embodiment 4:
Set up simulated formation aqueous corrosion environment, the conduction mode of connection of zinc anode material and tubing and casing is evaluated.
Local water environment:
Stratum Simulated Water water quality data is as follows: density: 1.02 ~ 1.19g/ml, pH value: 6, HCO3 -: 150mg/L, Cl-: 17 �� 104mg/L��SO4 2-: 1500mg/L, Ca2+: 2.3 �� 104mg/L��Mg2+: 3000mg/L, total mineralization: 28 �� 104mg/L��
Adopting nearly reference method to be measured by the sleeve outer wall protection potential in simulated formation water surrounding, this test started from December 25 in 2013, terminate on October 13rd, 2014 last group DATA REASONING, period interval within about 15 days, carry out a DATA REASONING.
The distance variation relation curve of sleeve outer wall detective pole protection potential with anode pipe nipple is gone out according to stratum aqueous corrosion environmental simulation test data creating; as shown in Figure 2; adopting the conduction mode of connection of zinc anode material of the present invention and tubing and casing, protection potential is all less than-0.85V(CSE).
In sum, this kind of zinc anode material provided by the invention and tubing and casing conduction mode of connection and working method, after being melted by zinc anode, be directly cast in tubing and casing surface. By this scheme, conduction mode of connection becomes face by common some connection and connects, it is achieved that maximized conducts, solves the conduction Joint failure problem that zinc anode local corrosion causes, it is ensured that zinc anode gives full play to effect; Zinc anode and the seamless tight conduction connection of tubing and casing simultaneously, anode provides stablizes sustainable protection electric current, effectively reduces the anode failure phenomenon that the uneven burn into crevice corrosion of anode material causes, significantly prolongation anode work-ing life.
The method that the present embodiment does not describe in detail belongs to the common practise of the industry, does not describe one by one here.
More than enumerating is only the illustration to the present invention, does not form the restriction to protection scope of the present invention, and every design same or similar with the present invention all belongs within protection scope of the present invention.
Claims (9)
1. a zinc anode material and tubing and casing conduction mode of connection, it is characterised in that: comprising tubing and casing and be located at the zinc anode of tubing and casing outside surface, described zinc anode circumference covers tubing and casing outside surface, and the contact surface of described zinc anode and tubing and casing is thermal interface.
2. the working method of a kind of zinc anode material according to claim 1 and tubing and casing conduction mode of connection, it is characterised in that, comprise the following steps:
Step one, casts position (1) outside surface pre-treatment in advance by tubing and casing, it may also be useful to annular electro heating jacket heats, heat preservation for standby use;
Step 2, it may also be useful to metal die (2) is heated by liquefied gas flame gun, is fixed on tubing and casing by metal die (2) after spraying releasing agent and casts position (1) in advance;
Step 3, by zinc anode heat fused, waters and casts from metal die (2), after cooling forming, and the demoulding and get final product.
3. the working method of a kind of zinc anode material according to claim 2 and tubing and casing conduction mode of connection, it is characterized in that: outside surface pre-treatment described in step one is removed by angle grinding machine black antifouling paste, the zone of oxidation of the attachment of tubing and casing outer wall, exposes tubing and casing steel body.
4. the working method of a kind of zinc anode material according to claim 2 and tubing and casing conduction mode of connection, it is characterized in that: described in step one, use annular electro heating jacket to heat, heat preservation for standby use casts position (1) in advance by being fixed on tubing and casing with the annular electro heating jacket of automatic temp Controlling System, arranging heating stop temperature is 200 DEG C, switch on power, after bushing outer surface heating temperatures to design temperature, stop heating, electric heating cover is in keeping warm mode, soaking time 30 minutes, process uses infrared temperature-measuring gun simultaneously test oil sleeve pipe cast position (1) surface temperature in advance, temperature range controls 200 DEG C �� 20 DEG C.
5. the working method of a kind of zinc anode material according to claim 2 and tubing and casing conduction mode of connection, it is characterized in that: step 2 uses liquefied gas flame gun evenly heated by metal die (2), using infrared temperature-measuring gun testing mould surface temperature, temperature range controls 120 DEG C �� 20 DEG C.
6. the working method of a kind of zinc anode material according to claim 5 and tubing and casing conduction mode of connection, it is characterized in that: when metal die (2) is heated to 120 DEG C �� 20 DEG C by step 2, first the cavity of metal die (2), cast gate and rising head is cleared up, to internal surface no-sundries, releasing agent is evenly sprayed at internal surface again, and no sag, thickness equal one, in spraying process, continue to use the baking of liquefied gas flame gun, to surface cure.
7. the working method of a kind of zinc anode material according to claim 6 and tubing and casing conduction mode of connection, it is characterized in that: after step 2 sprays releasing agent, liquefied gas flame gun is used to continue heating of metal mould (2), behind temperature to 200 DEG C �� 20 DEG C, metal die (2) is fixed on tubing and casing and casts position (1) in advance.
8. the working method of a kind of zinc anode material according to claim 2 and tubing and casing conduction mode of connection, it is characterized in that: zinc anode heat fused process in step 3, zinc anode is put into resistance furnace, spreads one layer of wood charcoal powder on surface and be heated to zinc anode and fully melt in crucible.
9. the working method of a kind of zinc anode material according to claim 8 and tubing and casing conduction mode of connection, it is characterized in that: after zinc anode heat fused, the zinc anode melt of fusing is contained into watering bag, metal temperature measurer is used to measure temperature, until when melt temperature reaches 550 DEG C �� 20 DEG C, pour in the cast gate of metal die (2) fast, until stopping casting when rising head place has melt to emerge, treat cast gate, the basic condensation cured of rising head melt, cooling time is 5 ~ 10 minutes, can carry out mould off-type.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610186842.XA CN105618716B (en) | 2016-03-29 | 2016-03-29 | A kind of zinc anode material and tubing and casing conductive connection manner and processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610186842.XA CN105618716B (en) | 2016-03-29 | 2016-03-29 | A kind of zinc anode material and tubing and casing conductive connection manner and processing method |
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| CN105618716A true CN105618716A (en) | 2016-06-01 |
| CN105618716B CN105618716B (en) | 2018-03-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575168A (en) * | 2017-08-24 | 2018-01-12 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of anticorrosive casing pipe and arrangement and application |
| CN116265609A (en) * | 2021-12-16 | 2023-06-20 | 中国石油天然气股份有限公司 | Zinc alloy sacrificial anode material and preparation method, application and method for preparing anticorrosive coating thereof |
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| US4462960A (en) * | 1981-12-28 | 1984-07-31 | Norzink A/S | Zinc anode alloy for sacrificial anodes |
| CN101397671A (en) * | 2007-09-30 | 2009-04-01 | 濮阳市信宇石油机械化工有限公司 | Sacrificial anode and protective cathode-oil pipe anti-corrosive apparatus |
| CN201713578U (en) * | 2010-01-10 | 2011-01-19 | 濮阳市信宇石油机械化工有限公司 | Sleeve anti-corrosion device with sacrificial anode cathodic protection |
| CN202492582U (en) * | 2011-08-02 | 2012-10-17 | 濮阳市中发石油机械有限公司 | Casing anode protector |
| CN204401107U (en) * | 2014-12-22 | 2015-06-17 | 盘锦辽河油田金宇集团有限公司 | Oil well sacrificial anode protection device |
| CN205576285U (en) * | 2016-03-29 | 2016-09-14 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Zinc anode material and oil jacket piping electricity connected mode |
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2016
- 2016-03-29 CN CN201610186842.XA patent/CN105618716B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4462960A (en) * | 1981-12-28 | 1984-07-31 | Norzink A/S | Zinc anode alloy for sacrificial anodes |
| CN101397671A (en) * | 2007-09-30 | 2009-04-01 | 濮阳市信宇石油机械化工有限公司 | Sacrificial anode and protective cathode-oil pipe anti-corrosive apparatus |
| CN201713578U (en) * | 2010-01-10 | 2011-01-19 | 濮阳市信宇石油机械化工有限公司 | Sleeve anti-corrosion device with sacrificial anode cathodic protection |
| CN202492582U (en) * | 2011-08-02 | 2012-10-17 | 濮阳市中发石油机械有限公司 | Casing anode protector |
| CN204401107U (en) * | 2014-12-22 | 2015-06-17 | 盘锦辽河油田金宇集团有限公司 | Oil well sacrificial anode protection device |
| CN205576285U (en) * | 2016-03-29 | 2016-09-14 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Zinc anode material and oil jacket piping electricity connected mode |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575168A (en) * | 2017-08-24 | 2018-01-12 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of anticorrosive casing pipe and arrangement and application |
| CN116265609A (en) * | 2021-12-16 | 2023-06-20 | 中国石油天然气股份有限公司 | Zinc alloy sacrificial anode material and preparation method, application and method for preparing anticorrosive coating thereof |
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