CN205000934U - Anticorrosive casing head of metal seal - Google Patents
Anticorrosive casing head of metal seal Download PDFInfo
- Publication number
- CN205000934U CN205000934U CN201520690608.1U CN201520690608U CN205000934U CN 205000934 U CN205000934 U CN 205000934U CN 201520690608 U CN201520690608 U CN 201520690608U CN 205000934 U CN205000934 U CN 205000934U
- Authority
- CN
- China
- Prior art keywords
- casing head
- head body
- sleeve pipe
- taper hole
- anticorrosive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to an anticorrosive casing head of metal seal mainly includes the casing head body, casing head body and sleeve pipe sealing connection, and casing head body skin is equipped with the anticorrosive protection layer, the casing head body with sleeve pipe sealing connection department centre bore is the back taper hole, downthehole the sealing up of back taper has back taper shape and back taper hole assorted to mend the pellet between two parties, this internal lower extreme face of casing head is equipped with one and seals compensation clearance, the inside extension, the modified epoxide resin waterproof anticorrosive supporting material of anticorrosive heat preservation for having high osmotic work ability, the casing head body adopts corrosion resistant elasticity alloy material, the stability of the well drilling wellhead assembly is improved, propose the bearing of each layer sheathed tube weight and blowout preventer stack's beyond the high support sleeve pipe weight, the inside and outside pressure of balancing sleeve improves casing head and bushing's purposes such as sealing performance, the service life of casing head anti -corrosion performance, the extension casing head is prolonged, improve factor of safety, put forward the high leakproofness ability, prevention oil leak, gas leakage phenomenon.
Description
Technical field
The utility model relates to oil and gas well drilling control head, and particularly a kind of metal sealing anti-corrosive cover tube head is practical.
Background technology
Oil field well often a few km water layer water quality difference is apparent, so the many water layers in down-hole are a kind of common phenomena in stratum, find that the oil pipe in oil well water is also more outstanding by the corrosion phenomenon of formation water aborning, more serious than land to the metal erosion of oil pipe body, if do not take effective safeguard procedures, the corrosion of oil pipe will be accelerated, thus to newly enter well oil pipe and after repairing the Anticorrosion of old oil pipe again also very important, as can be seen here, the corrosion of control oil pipe is a very important task; Time in Oil Field casing head Installation and Debugging operation, the center line of casing head and the Deviation Control of center of turntable line are more than 10mm standard, and lower step is crept in work and wellhead blowout preventor group latus rectum will be caused to cause preventer seal failure to eccentric wear; Casing head internal diameter eccentric wear causes casing head seal failure and sleeve pipe eccentric wear, boring a hole causes between sleeve ring or the serious consequence such as sleeve pipe and stratum packing inefficacy; When the larger situation of deviation is serious, bottom drilling well work even can be caused to proceed; The on-the-spot situation for rectification deviation, often needs surface pipe entirety after surface pipe head rest Pan Chu cuts to move surface pipe head to reach correction of deviation, realizes the object continuing drilling well.
Utility model content
The utility model object provides a kind of metal sealing anti-corrosive cover tube head practical to overcome the deficiencies in the prior art; Improve the compliance of down-hole casing head corrosive environment, oil pipe can effectively be worked lastingly, and the extending sleeve protection of pipe life-span is greater than 30%, and the overall anticorrosion time is long; Effective prevention casing head internal diameter eccentric wear causes casing head seal failure and sleeve pipe eccentric wear, boring a hole causes between sleeve ring or the serious consequence such as sleeve pipe and stratum packing inefficacy.
For achieving the above object, the technical solution adopted in the utility model is: a kind of metal sealing anti-corrosive cover tube head, mainly comprises casing head body, and described casing head body is connected with bobbin seal; Described this volume surrounding of casing head is provided with corrosion protective covering; Described casing head body and described bobbin seal junction centre bore are reverse taper hole; The benefit pellet placed in the middle that reverse tapered shape and reverse taper hole match is sealed with in described reverse taper hole; In described casing head body, lower surface is provided with one and closes compensate for clearance, extends internally.
Improve further as the utility model, described anticorrosion insulating layer is the modified epoxy water-tight corrosion-proof supporting material with Thief zone function.
Improve further as the utility model, described casing head body adopts corrosion resistant elastic alloy material.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
A kind of metal sealing anti-corrosive cover tube head is practical, in casing head installation process, generally can there is minor variations in sleeve pipe verticality, improved by CASINGHEAD STRUCTURE, in installation, reverse taper hole is mended in pellet seal process between two parties, extrude the intrinsic closed compensate for clearance of casing head that corrosion resistant elastic alloy material makes, utilize inching, make up the deviation in the control range between casing head and sleeve pipe, thus reach eliminate deviation arrive object placed in the middle, effective prevention casing head internal diameter eccentric wear causes casing head seal failure and sleeve pipe eccentric wear, perforation causes between sleeve ring or the serious consequence such as sleeve pipe and stratum packing inefficacy, this volume surrounding of casing head is provided with corrosion protective covering, is made by the modified epoxy water-tight corrosion-proof supporting material of Thief zone function, and in control stratum, the many water layers in down-hole are to the corrosion of casing head body, improve the stability of wellhead for drilling, each weight of layer sleeve pipe beyond raising supporting sleeve and the load-bearing of the weight of blowout preventer set, the inside and outside pressure of balancing sleeve, the objects such as the sealing performance that raising casing head is connected with sleeve pipe, extending sleeve tube head application life, improve safety factor, improve sealing performance, pre-oil-leakage-prevention, gas leak phenomenon.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is that a kind of metal sealing anti-corrosive cover tube head of the present utility model is practical.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1 be that a kind of metal sealing anti-corrosive cover tube head described in the utility model is practical, mainly comprise casing head body 1, be tightly connected with sleeve pipe 2; Described casing head body 1 skin is provided with corrosion protective covering 3, and anticorrosion insulating layer 3 is for having the modified epoxy water-tight corrosion-proof supporting material of Thief zone function; Described casing head body 1 is reverse taper hole 4 with described sleeve pipe 2 place of being tightly connected centre bore; Be sealed with the benefit pellet 5 placed in the middle that reverse tapered shape and reverse taper hole match in described reverse taper hole 4, in casing head body 1, lower surface is provided with one and closes compensate for clearance 6, extends internally; Casing head body 1 adopts corrosion resistant elastic alloy material to make; In casing head installation process, generally can there is minor variations in sleeve pipe verticality, benefit pellet 5 placed in the middle is filled in seal process in reverse taper hole 4, extrude the closed compensate for clearance 6 in the casing head body 1 of corrosion resistant elastic alloy material making, utilize inching, make up the deviation in the control range between casing head body 1 and sleeve pipe 2, thus reach and eliminate deviation and arrive object placed in the middle, effectively prevention casing head internal diameter eccentric wear causes casing head seal failure and sleeve pipe 2 eccentric wear, perforation causes sleeve pipe 2 interannular or the serious consequence such as sleeve pipe 2 and stratum packing inefficacy; Casing head body 1 skin is provided with corrosion protective covering 3, is made by the modified epoxy water-tight corrosion-proof supporting material of Thief zone function, and in control stratum, the many water layers in down-hole are to the corrosion of casing head body 1; Improve the stability of wellhead for drilling, each weight of layer sleeve pipe beyond raising supporting sleeve and the load-bearing of the weight of blowout preventer set, the inside and outside pressure of balancing sleeve, the objects such as the sealing performance that raising casing head is connected with sleeve pipe; Improve casing head Corrosion Protection, extending sleeve tube head application life, improve safety factor, improve sealing performance, pre-oil-leakage-prevention, gas leak phenomenon.
Below be only embody rule example of the present utility model, protection domain of the present utility model is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within the utility model rights protection scope.
Claims (3)
1. a metal sealing anti-corrosive cover tube head, mainly comprises casing head body, and described casing head body is connected with bobbin seal, it is characterized in that: described this volume surrounding of casing head is provided with corrosion protective covering; Described casing head body and described bobbin seal junction centre bore are reverse taper hole; The benefit pellet placed in the middle that reverse tapered shape and reverse taper hole match is sealed with in described reverse taper hole; In described casing head body, lower surface is provided with one and closes compensate for clearance, extends internally.
2. a kind of metal sealing anti-corrosive cover tube head according to claim 1, is characterized in that: described anticorrosion insulating layer is the modified epoxy water-tight corrosion-proof supporting material with Thief zone function.
3. a kind of metal sealing anti-corrosive cover tube head according to claim 1 is practical, it is characterized in that: described casing head body adopts corrosion resistant elastic alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520690608.1U CN205000934U (en) | 2015-09-08 | 2015-09-08 | Anticorrosive casing head of metal seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520690608.1U CN205000934U (en) | 2015-09-08 | 2015-09-08 | Anticorrosive casing head of metal seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205000934U true CN205000934U (en) | 2016-01-27 |
Family
ID=55157829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520690608.1U Active CN205000934U (en) | 2015-09-08 | 2015-09-08 | Anticorrosive casing head of metal seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205000934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227941A (en) * | 2017-06-16 | 2017-10-03 | 盐城市东荣石油机械有限公司 | A kind of sucker rod wax scraping device |
-
2015
- 2015-09-08 CN CN201520690608.1U patent/CN205000934U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227941A (en) * | 2017-06-16 | 2017-10-03 | 盐城市东荣石油机械有限公司 | A kind of sucker rod wax scraping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20020158469A1 (en) | Threaded coupling with water exclusion seal system | |
| CN202936487U (en) | Sacrificial anode used for cathodic protection of underground pipeline system | |
| CN202520265U (en) | Gas production well head device with metallic seals | |
| CN103883275A (en) | Novel energy-saving environment-friendly gas injection wellhead device | |
| CN205000934U (en) | Anticorrosive casing head of metal seal | |
| CN103398247A (en) | High seal and corrosion-resistant seabed conveying pipeline connecting device | |
| CN203742547U (en) | Novel energy-saving environment-friendly gas-injection well head device | |
| CN204899857U (en) | Geothermal well is with high temperature resistant multi -functional floating valve | |
| US3246916A (en) | Protector for ring and groove type sealed joints | |
| CN207795126U (en) | A kind of oil-pumping well head equipment | |
| CN103850662B (en) | One is annular preventer under water | |
| CN207278233U (en) | A kind of sealed casing head of high temperature and pressure MULTIPLE COMPOSITE | |
| US10161213B2 (en) | Internal and external pressure seal assembly | |
| CN103541681A (en) | High-temperature-resistant high-pressure-resistant cross-class compression type seal component for bushes and barefoot wells | |
| CN204691696U (en) | A kind of high-temperature metal sealing petroleum tube connector | |
| CN110569570B (en) | Annular pressure calculation method based on compression efficiency of threaded joint | |
| CN208870567U (en) | Blowout hookup is sealed between well head oil skill casing | |
| CN203939478U (en) | A kind of hydraulic buckling type high temperature completion packer | |
| CN205172130U (en) | Safe firm formula anticorrosion signal tower | |
| CN203905890U (en) | High temperature and high pressure resistant ultra-pound class compressive seal assembly suitable for casing pipe and uncased hole | |
| CN211648023U (en) | Oil pipe end packing sleeve | |
| CN205136659U (en) | Build -up welding rotary eccentric plug valve | |
| CN205172459U (en) | Oily casing coupling of antiseized knot anticorrosives | |
| CN205477496U (en) | Well head metallic sealing ring | |
| CN205000935U (en) | Multi -functional integral casing head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |