CN102080513A - Fire flooding oil recovery wellhead device - Google Patents
Fire flooding oil recovery wellhead device Download PDFInfo
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- CN102080513A CN102080513A CN2010105994212A CN201010599421A CN102080513A CN 102080513 A CN102080513 A CN 102080513A CN 2010105994212 A CN2010105994212 A CN 2010105994212A CN 201010599421 A CN201010599421 A CN 201010599421A CN 102080513 A CN102080513 A CN 102080513A
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- flange body
- way flange
- oil pipe
- gate
- valve
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Abstract
The invention belongs to ground equipment for fire flooding oil recovery in an oil field, and in particular relates to a fire flooding oil recovery wellhead device. The device comprises an oil pipe gate (1), a steam injection valve (2), a five-way flange body (3) provided with three clamping heads, and a sleeve gate (4), wherein the sleeve gate (4), the oil pipe gate (1) and the steam injection valve (2) are fixedly connected with the clamping heads of the five-way flange body (3) in turn respectively; an oil pipe fastener at the lower end of the five-way flange body (3) is connected with an oil pipe column in an oil well; and the lower end of the five-way flange body (3) is fixedly provided with a sleeve flange (7) with a large sealing steel ring (8). The valve is tightly enclosed, the device is free from leakage, the valve is conveniently exchanged, and the application range is wide.
Description
Technical field
The invention belongs to the used ground installation of oilfield fireflood producing well, relate in particular to a kind of fire flood wellhead assembly.
Background technology
At present, the oil field is when notes high-temperature steam preheating igniting method is adopted in fire flood, adopt thermal recovery well head device to satisfy the technological requirement of steam injection preheating igniting, the thermal recovery well head device structure is big four, casing flange, oil pipe flange, sleeve gate, oil pipe gate, little four-way and clamp connection part, its weak point complex structure, connector is many.But along with the process of air is injected in fire flood under the normal temperature state, adopt thermal production well mouth just to seem inapplicable, exist the phenomenon that valve fits badly, leaks, owing to burn to recover the oil and require to inject continuously air, well head has high pressure, can't change valve again.Along with the application of fire flood, no matter, the fireflood well head is required by high more compliance, to satisfy the needs of fire flood different phase from material, still structure.From the requirement of well head, should satisfy the steam injection hot conditions, satisfy normal temperature again and inject conditions of air.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art part and provides a kind of valve closing tight, does not have to leak, and it is convenient to change valve body, the fire flood wellhead assembly that the scope of application is extensive.
For achieving the above object, the present invention is achieved in that
A kind of fire flood wellhead assembly, it comprises oil pipe gate, steam injection valve, is provided with the five-way flange body and the sleeve gate of three clip heads; Described sleeve gate, oil pipe gate and steam injection valve are fixedly connected with the clip head of five-way flange body respectively successively; Tubing string in described five-way flange body lower end oil pipe discount and the oil well is connected.
As a kind of preferred version, the present invention fixedly is furnished with the casing flange with big ring gasket in described five-way flange body lower end.
The present invention is because the five-way flange body has replaced the function of big four, tubing hanger and the upper flange of thermal production well mouth, simplified thermal recovery well head device, compact conformation, three clip head endoporus on the five-way flange body are provided with and the internal thread of changing the same specification of valve special tool, realize that easily replace with pressure valve and Thermal extracting valve and common valve exchange,, reduced by three valves not reducing by six valves of function of use and thermal recovery well head device relatively, reduce component, greatly reduced expense.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is an overall structure schematic diagram of the present invention.
Among the figure: 1 is the oil pipe gate; 2 are the steam injection valve; 3 is the five-way flange body; 4 is sleeve gate; 5 is the clip assembly; 6 is king-bolt; 7 is casing flange; 8 is big ring gasket.
The specific embodiment
Referring to shown in Figure 1, the fire flood wellhead assembly, it comprises oil pipe gate 1, steam injection valve 2, is provided with the five-way flange body 3 and the sleeve gate 4 of three clip heads; Described sleeve gate 4, oil pipe gate 1 and steam injection valve 2 are fixedly connected with the clip head of five-way flange body 3 respectively successively; Tubing string in described five-way flange body 3 lower end oil pipe discounts and the oil well is connected.The present invention fixedly is furnished with the casing flange 7 with big ring gasket 8 in described five-way flange body 3 lower ends.
The present invention mainly parts such as forms by steam injection gate, sleeve gate, oil pipe gate, five-way flange body, casing flange, king-bolt, big ring gasket and clip assembly and forms; The five-way flange body is the cylinder flange body, be provided with three clip heads, five-way flange body central through hole connects, and mouthful be communicated with left end is vertical, constitute threeway, five-way flange body bottom righthand side is provided with the age of a draught animal in January, with five-way flange body right output port vertical connection, three clip head endoporus are provided with and the internal thread of changing the same specification of valve special tool, constitute the five-way flange body; Sleeve valve all is connected with the clip head assembly with five-way flange body upper end clip head with five-way flange body left end clip head, steam injection valve with five-way flange body right-hand member clip head, tubing valve, tubing string in five-way flange body lower end oil pipe discount and the oil well is connected, big ring gasket is packed in the steel ring slot of casing flange and five-way flange body, casing flange is connected with king-bolt with the five-way flange body, steam injection gate, sleeve gate, oil pipe gate all adopt Thermal extracting valve, and its connector all changes first the causing of jointing clip with common well head wedge valve into; The five-way flange body has replaced the function of big four, tubing hanger and the upper flange of thermal production well mouth; When annotating high-temperature steam, enter the five-way flange body by the steam injection valve, enter tubing string again, when air injection, enter the threeway of five-way flange body left end import by the oil pipe gate, enter tubing string again and the upper end valve is used for test lead, sleeve valve setting pressure table, be used to observe oil jacket space pressure situation of change, also can be used for the measure link; When playing the lower tubular column operation,, can carry out oil well and remove the tubing string job execution as long as unload the king-bolt that casing flange is connected with the five-way flange body.
As shown in the figure, the present invention includes oil pipe gate 1, steam injection valve 2, five-way flange body 3, sleeve gate 4, clip assembly 5, king-bolt 6, casing flange 7, big ring gasket 8 compositions; Five-way flange body 3 is the cylinder flange body, be provided with three clip heads, five-way flange body 3 central through holes connect, and mouthful be communicated with left end is vertical, constitute threeway, five-way flange body 3 bottom righthand sides are provided with the age of a draught animal in January, with five-way flange body 3 right output port vertical connections, three clip head endoporus are provided with and the internal thread of changing the same specification of valve special tool, constitute five-way flange body 3; Sleeve valve 4 all is connected with clip head assembly 5 with five-way flange body 3 upper end clip heads with five-way flange body 3 left end clip heads, steam injection valve 2 with five-way flange body 3 right-hand member clip heads, tubing valve 1, tubing string in five-way flange body 3 lower end oil pipe discounts and the oil well is connected, big ring gasket 8 is packed in the steel ring slot of casing flange 7 and five-way flange body 3, and casing flange 7 is connected with five-way flange body 3 usefulness king-bolts 6.
Be with being appreciated that, more than about specific descriptions of the present invention, only be used to the present invention is described and be not to be subject to the described technical scheme of the embodiment of the invention, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as satisfy, all within protection scope of the present invention.
Claims (2)
1. a fire flood wellhead assembly is characterized in that, comprises oil pipe gate (1), steam injection valve (2), is provided with the five-way flange body (3) and the sleeve gate (4) of three clip heads; Described sleeve gate (4), oil pipe gate (1) and steam injection valve (2) are fixedly connected with the clip head of five-way flange body (3) respectively successively; Tubing string in described five-way flange body (3) lower end oil pipe discount and the oil well is connected.
2. fire flood wellhead assembly according to claim 1 is characterized in that: fixedly be furnished with the casing flange (7) with big ring gasket (8) in described five-way flange body (3) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105994212A CN102080513A (en) | 2010-12-22 | 2010-12-22 | Fire flooding oil recovery wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105994212A CN102080513A (en) | 2010-12-22 | 2010-12-22 | Fire flooding oil recovery wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102080513A true CN102080513A (en) | 2011-06-01 |
Family
ID=44086677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105994212A Pending CN102080513A (en) | 2010-12-22 | 2010-12-22 | Fire flooding oil recovery wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102080513A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020117298A1 (en) * | 2000-09-29 | 2002-08-29 | Henry Wong | Wellhead lsolation tool |
| CN2929159Y (en) * | 2006-06-30 | 2007-08-01 | 新疆石油管理局采油工艺研究院 | Hot production wellhead device |
| CN101215960A (en) * | 2008-01-08 | 2008-07-09 | 辽河石油勘探局 | Light well head device for single well production |
| CN201133228Y (en) * | 2007-12-17 | 2008-10-15 | 辽河石油勘探局 | Well head device for well production |
-
2010
- 2010-12-22 CN CN2010105994212A patent/CN102080513A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020117298A1 (en) * | 2000-09-29 | 2002-08-29 | Henry Wong | Wellhead lsolation tool |
| CN2929159Y (en) * | 2006-06-30 | 2007-08-01 | 新疆石油管理局采油工艺研究院 | Hot production wellhead device |
| CN201133228Y (en) * | 2007-12-17 | 2008-10-15 | 辽河石油勘探局 | Well head device for well production |
| CN101215960A (en) * | 2008-01-08 | 2008-07-09 | 辽河石油勘探局 | Light well head device for single well production |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110601 |