CN104295277A - Steam injection sealing insertion pipe - Google Patents
Steam injection sealing insertion pipe Download PDFInfo
- Publication number
- CN104295277A CN104295277A CN201310304105.1A CN201310304105A CN104295277A CN 104295277 A CN104295277 A CN 104295277A CN 201310304105 A CN201310304105 A CN 201310304105A CN 104295277 A CN104295277 A CN 104295277A
- Authority
- CN
- China
- Prior art keywords
- insertion pipe
- sealing
- steam injection
- intubate
- pipe body
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 33
- 238000010793 Steam injection (oil industry) Methods 0.000 title claims abstract description 23
- 238000003780 insertion Methods 0.000 title abstract description 10
- 230000037431 insertion Effects 0.000 title abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229920002449 FKM Polymers 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 229920001973 fluoroelastomer Polymers 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a steam injection sealing insertion pipe. Arc-shaped righting blocks are connected outside the back section of an insertion pipe body; a sealing copper ring and a rubber sealing ring are connected outside the front section of the insertion pipe body; and a wedge-shaped sealing sleeve is arranged outside the middle section of the insertion pipe body. A spring is connected between the wedge-shaped sealing sleeve and a lug boss on the insertion pipe body; the insertion pipe body and the arc-shaped righting blocks are fixedly connected; a groove which is in embedded connection with the sealing copper ring and the rubber sealing ring is formed in the insertion pipe body; four arc-shaped righting blocks are arranged; and the rubber sealing ring is a fluororubber sealing ring. The steam injection sealing insertion pipe has the advantages of simple structure, high strength, convenient use, good sealing performance and the like, and can effectively prevent steam from leaking and prevent water of a casing pipe from entering a ground layer.
Description
Technical field
The present invention relates to oil exploration equipment, in particularly thickened oil recovery process, inject a kind of steam injection sealing intubate that steam uses.
Background technology
Current deep layer super-heavy oil deposit exploitation difficulty, main cause is deeply buried reservoir, and viscosity of crude is high, causes steam injection pressure high, and shaft bottom quality of steam declines, and cannot meet the requirement of thermal recovery.Viscosity of crude is to the sensitiveness of temperature strong (temperature often reduces by 5 DEG C, and viscosity of crude raises nearly one times) simultaneously, and lifting process Crude Oil viscosity B coefficent is large, causes wellbore lift difficulty.Adopt horizontal well to coordinate note to adopt integrated pipe column to develop for this reason, improve steam injection quality, when adopting omnidistance heat insulation mode to produce, effectively can utilize Formation heat, reduce formation fluid heat and must scatter and disappear in flow string.Because full well section tubing string load is large, adopt heat-sensitive packer to divide two-part, top tubing string is connected with bottom tubing string and adopts intubation way, top tubing string inserts in packer by intubate, with bottom tubing string UNICOM, form steam injection oil recovery passage, therefore the sealing of intubate is particularly important.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, intensity is high, easy to use, good seal performance, can effectively prevent steam leakage, steam injection sealing intubate that sleeve water enters the problems such as stratum.
Object of the present invention realizes by following technical scheme:
Be connected with arc wiper block outside the back segment of the intubate body of this steam injection sealing intubate, be connected with sealing copper band and rubber seal outside leading portion, outside interlude, have wedge-type seal cover.
Object of the present invention also realizes by following technical scheme:
Spring is connected with between the boss on described wedge-type seal cover and intubate body; Described intubate body and arc wiper block are admittedly
Fixed connection; Described intubate body be provided with seal copper band, rubber seal embeds the groove be connected; Described arc wiper block is 4; Described rubber seal is viton seal ring.
During thick oil heat production steam injection, 4 arc centralizers of steam injection sealing intubate assembling, ensure in intubate pit shaft placed in the middle, insert device in packer smoothly.Sealing copper band and viton seal ring due to thermal expansion squeeze packer inwall, play sealing function when steam injection.Steam injection tubing string when steam injection because thermal expansion can be extended; intubate can continue to go deep in packer; sealing copper band and viton seal ring are subjected to displacement, and now spring can produce compression, and wedge-type seal cover can be squeezed on packer; if gap is large; then wedge-type seal cover can a part be clamp-oned in packer, produces dual sealing functions, protective casing, minimizing well casing heat waste; improve steam injection efficiency, guarantee high-temperature steam safety, be effectively injected into object oil reservoir.Structure is simple, novel in design, and it is applied and has more significant Social benefit and economic benefit.
This steam injection sealed tube rod structure is simple, intensity is high, and arc wiper block adopts and is welded to connect intubate body, can be supported on
Sleeve pipe tube wall makes intubate effectively placed in the middle, accurately insert; Intubate body leading portion insertion end adopts large chamfering, is conducive to guiding and inserts packer; The sealing of intubate and packer is guaranteed in the double seal of wedge-type seal cover and sealing copper band, viton seal ring, can effectively prevent steam leakage, sleeve water enters the problems such as stratum.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1-intubate body, 2-arc wiper block, 3-spring, 4-wedge-type seal cover, 5-seal copper band, 6-rubber seal.
embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
4 arc wiper blocks 2 are connected with outside the back segment of intubate body 1, sealing copper band 5 and rubber seal 6 is connected with outside leading portion, wedge-type seal is had to overlap 4 outside interlude, described wedge-type seal is overlapped between the boss on 4 and intubate body 1 and is connected with spring 3, described intubate body 1 is fixedly connected with arc wiper block 2, described intubate body 1 be provided with seal copper band 5, rubber seal 6 embeds the groove be connected, described rubber seal 6 is viton seal ring.Wedge-type seal overlap 4 stressed time at intubate body 1 surface sliding.
Claims (6)
1. a steam injection sealing intubate, is connected with arc wiper block (2) outside the back segment that it is characterized in that intubate body (1), is connected with sealing copper band (5) and rubber seal (6), has wedge-type seal cover (4) outside interlude outside leading portion.
2. a kind of steam injection sealing intubate as claimed in claim 1, is characterized in that being connected with spring (3) between the boss on described wedge-type seal cover (4) and intubate body (1).
3. a kind of steam injection sealing intubate as claimed in claim 1, is characterized in that described intubate body (1) is fixedly connected with arc wiper block (2).
4. a kind of steam injection sealing intubate as claimed in claim 1, it is characterized in that described intubate body (1) be provided with seal copper band (5), rubber seal (6) embeds the groove be connected.
5. a kind of steam injection sealing intubate as claimed in claim 1, is characterized in that described arc wiper block (2) is 4.
6. a kind of steam injection sealing intubate as claimed in claim 1, is characterized in that described rubber seal (6) is viton seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304105.1A CN104295277A (en) | 2013-07-19 | 2013-07-19 | Steam injection sealing insertion pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304105.1A CN104295277A (en) | 2013-07-19 | 2013-07-19 | Steam injection sealing insertion pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104295277A true CN104295277A (en) | 2015-01-21 |
Family
ID=52315194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310304105.1A Pending CN104295277A (en) | 2013-07-19 | 2013-07-19 | Steam injection sealing insertion pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295277A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3666013A (en) * | 1969-12-30 | 1972-05-30 | Texaco Inc | Reinforced concrete stabilizer for an insulated tubing string in a secondary recovery steam stimulation operation |
| CN2448916Y (en) * | 2000-09-04 | 2001-09-19 | 赵景林 | Thermal production packer |
| CN201627563U (en) * | 2010-01-13 | 2010-11-10 | 张德生 | Hot melt steam injection packer |
| CN202900072U (en) * | 2012-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Thick oil thermal production well oil pipe steam injection pipe column centralizing device |
| CN203452760U (en) * | 2013-07-19 | 2014-02-26 | 中国石油化工股份有限公司 | Steam injection sealing inserting tube |
-
2013
- 2013-07-19 CN CN201310304105.1A patent/CN104295277A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3666013A (en) * | 1969-12-30 | 1972-05-30 | Texaco Inc | Reinforced concrete stabilizer for an insulated tubing string in a secondary recovery steam stimulation operation |
| CN2448916Y (en) * | 2000-09-04 | 2001-09-19 | 赵景林 | Thermal production packer |
| CN201627563U (en) * | 2010-01-13 | 2010-11-10 | 张德生 | Hot melt steam injection packer |
| CN202900072U (en) * | 2012-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Thick oil thermal production well oil pipe steam injection pipe column centralizing device |
| CN203452760U (en) * | 2013-07-19 | 2014-02-26 | 中国石油化工股份有限公司 | Steam injection sealing inserting tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202544824U (en) | Concentric double-pipe hierarchical injection pipe column | |
| CN201972682U (en) | Gas-injection oil-exploitation tubular column adopting packer technology for horizontal well | |
| NZ607028A (en) | Apparatus and method for downhole steam generation and enhanced oil recovery | |
| CN103321622A (en) | Sand draining and oil extracting method in manner of integrating injection and extraction for thermal producing well and device thereof | |
| CN101463718A (en) | Same-well production technique column for low-permeation horizontal well | |
| CN102644442A (en) | Ultra-viscous crude oil injection-production integrated technique tubular pile | |
| CN104405355A (en) | Injection-production tubular column of horizontal well | |
| CN103452496B (en) | Integral type of adopting thick oil thermal extraction note automatically switches and produces joint | |
| CN107842346A (en) | A kind of oil-water well combined type is intubated internal sealed seating nipple | |
| CN203008883U (en) | Steam injection oil production technique pipe column | |
| CN203452760U (en) | Steam injection sealing inserting tube | |
| CN205025420U (en) | Combination effect layering vapour drives packer | |
| CN201915930U (en) | Tee joint special for thermal recovery | |
| CN204082100U (en) | Large span long well section partition-type flow string | |
| CN203961897U (en) | A kind of cement paste filling tube external packer envelope is altered instrument | |
| CN107780904A (en) | A kind of water flood recovery tubing string | |
| CN203742575U (en) | Dual-seal oil pumping device for steam injection and oil extraction | |
| CN104295277A (en) | Steam injection sealing insertion pipe | |
| CN105178906A (en) | Layered steam driving packer with combination effect | |
| CN202531140U (en) | Double-sealed hot water flooding tubular column of directional well in oil field | |
| CN104948147A (en) | Flow distributing device, heavy oil viscosity decreasing exploitation system and extraction method thereof | |
| CN103835688B (en) | Double containment steam injection is recovered the oil dual-purpose oil rig | |
| CN110905441A (en) | Well cementation method of low-pressure easy-to-leak well and casing string | |
| CN2622377Y (en) | Contact real type thermal stress compensator | |
| CN202176495U (en) | Ultra-heavy oil injecting-mining oil well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |