CN201635692U - Decentralized wellhead device - Google Patents
Decentralized wellhead device Download PDFInfo
- Publication number
- CN201635692U CN201635692U CN2010201475378U CN201020147537U CN201635692U CN 201635692 U CN201635692 U CN 201635692U CN 2010201475378 U CN2010201475378 U CN 2010201475378U CN 201020147537 U CN201020147537 U CN 201020147537U CN 201635692 U CN201635692 U CN 201635692U
- Authority
- CN
- China
- Prior art keywords
- oil
- tubing hanger
- main body
- wellhead device
- bearing
- 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.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 239000003921 oil Substances 0.000 description 22
- 239000010779 crude oil Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000010426 asphalt Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Earth Drilling (AREA)
Abstract
The utility model discloses a decentralized wellhead device, which belongs to the field of oil exploitation equipment and apparatus. The decentralized wellhead device includes a main body tee joint, and is characterized in that the device further includes a bearing and a mandrel hanger; the bearing is mounted in the main body tee joint; the mandrel hanger is mounted in the bearing; two vertical channels are arranged inside the mandrel hanger; a through hole is arranged in the middle of the mandrel hanger; an annular groove is formed in the middle of the main body tee joint; the positions of the through hole and the annular groove are opposite and in the same depth; an oil outlet is formed in the annular groove; and the oil outlet extends outwards to form a traversal oil-way channel. The utility model provides the decentralized wellhead device integrating the functions of oil exploitation and test, thereby solving the problems that an instrument is blocked, clamped or wound by an oil pipe when taken off.
Description
Technical field
The utility model relates to a kind of eccentric wellhead device that is used for oilfield exploitation, belongs to oil exploration equipment device field.
Background technology
Eccentric wellhead device is the visual plant that guarantees the oil well ordinary production, and oilfield requires oil recovery and test to carry out simultaneously when normal exploitation, reaches oil recovery, testing integrated.And general Christmas tree only has a passage, and this passage should be tested again and recover the oil, and just can not test when so just having produced oil recovery, and the contradiction that just can not recover the oil during test has influenced oil recovery efficiency, greatly reduces output.Oil-out and tubing hanger location overlap can bring certain influence during production simultaneously.General in addition decentralized wellhead extracting device of oil instrument connection and oil pipe can't rotate around the cover tube hub, can't solve the problem that is hampered, meets card and coiled tubing of taking off in the instrument process like this.
The utility model content
In order to solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of eccentric wellhead device, and centralized procurement oil, test function one can solve the problem that is hampered, meets card and coiled tubing of taking off in the instrument process.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of eccentric wellhead device, comprise the main body threeway, it is characterized in that: also comprise bearing and tubing hanger, in the described main body threeway bearing is installed, tubing hanger is installed in bearing, be provided with two vertical passageways in the described tubing hanger, be provided with through hole, be provided with cannelure at main body threeway middle part at the middle part of tubing hanger, described through hole is relative with the cannelure position, be in the same degree of depth, offer oil-out in cannelure, oil-out stretches out and is provided with the lateral oil paths.
Aforesaid a kind of eccentric wellhead device is characterized in that: two vertical passageways that are provided with in the described tubing hanger are the center of offset from body threeway all.
Aforesaid a kind of eccentric wellhead device is characterized in that: the described tubing hanger outside is provided with three O of place RunddichtringOs.
Aforesaid a kind of eccentric wellhead device is characterized in that: top, two vertical passageways of described tubing hanger is processed with tubing round thread, is convenient to connecting line.
Aforesaid a kind of eccentric wellhead device is characterized in that: the exit at main body threeway lateral oil paths is provided with tubing round thread and pressure testing joint.
The beneficial effects of the utility model are: be provided with two vertical passageways in the utility model tubing hanger, one is used for recovering the oil, one is used for test, be independent of each other, improved production efficiency, the utility model eccentric wellhead device is provided with bearing makes testing tube and flow string to rotate around the cover tube hub, can overcome to take off being hampered, meeting in the instrument process and block and the coiled tubing fault.The utility model has also increased annular seal groove, and oil-out is changed into the middle part, and asphalt channel and tubing hanger are independent of each other.The rotation well head need not to unload asphalt channel when ring was surveyed, and is more convenient.Asphalt channel is horizontally installed on the middle part in addition, has reduced the stroke that highly helps strengthening oil pumper, and the bigger fuel-displaced resistance of oil-out latus rectum is little.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the utility model main body three-port structure schematic diagram;
Fig. 3 is the utility model tubing hanger front view;
Fig. 4 is the utility model tubing hanger vertical view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of eccentric wellhead device shown in Fig. 1,2,3,4 comprises main body threeway 1, bearing 2 and tubing hanger 3, and the lower flange external diameter Φ 380-Φ 395 of main body threeway 1 adopts R45, R46 gasket ring to connect, and can be connected with the lower flange of former well head.In the described main body threeway 1 bearing 2 is installed, tubing hanger 3 is installed in bearing 2, bearing 2 is convenient to tubing hanger 3 and is rotated.Tubing hanger 3 external diameters are provided with three O of place RunddichtringOs 9, are convenient to the casing annulus sealing.Be provided with two vertical passageways in the described tubing hanger 3, one of them vertical passageway 4 is connected with oil pumper equipment, is used to carry out oil pumping work, and another vertical passageway 5 is processed with tubing round thread, be convenient to connecting line and carry out test job, described two vertical passageways are the center of offset from body threeway 1 all.Middle part in tubing hanger 3 is provided with through hole, is provided with cannelure 6 at main body threeway 1 middle part, and described through hole is relative with cannelure 6 positions to be in the same degree of depth, and 6 offer oil-out 7 in cannelure, and oil-out 7 stretches out and is provided with lateral oil paths 8.Be provided with tubing round thread 10 and pressure testing joint in the exit of lateral oil paths 8, hydraulic test pump can be connected with the pressure testing joint, to the whole pressure testing of decentralized wellhead.
During work, can be by the work of oil pumper, the crude oil of oil well bottom is extracted out, after crude oil enters tubing hanger 3 from oil pipe, crude oil can flow out from the through hole of tubing hanger 3, because through hole is relative with cannelure 6 positions of main body threeway 1, be in the same degree of depth, so no matter which kind of position is tubing hanger 3 rotate to, and the crude oil that flows out through hole all can be full of full annular groove 6, and crude oil finally can be by the oil-out 7 of cannelure 6, transversely asphalt channel 8 flows out, in the process of recovering the oil, operating personnel can test by the situation in 5 pairs of shaft bottoms, vertical passageway, can not influence the production efficiency of oil recovery simultaneously.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the manual just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. eccentric wellhead device, comprise the main body threeway, it is characterized in that: also comprise bearing and tubing hanger, in the described main body threeway bearing is installed, tubing hanger is installed in bearing, be provided with two vertical passageways in the described tubing hanger, be provided with through hole, be provided with cannelure at main body threeway middle part at the middle part of tubing hanger, described through hole is relative with the cannelure position, be in the same degree of depth, offer oil-out in cannelure, oil-out stretches out and is provided with the lateral oil paths.
2. a kind of eccentric wellhead device according to claim 2 is characterized in that: two vertical passageways that are provided with in the described tubing hanger are the center of offset from body threeway all.
3. a kind of eccentric wellhead device according to claim 2 is characterized in that: the described tubing hanger outside is provided with three O of place RunddichtringOs.
4. a kind of eccentric wellhead device according to claim 3 is characterized in that: top, two vertical passageways of described tubing hanger is processed with tubing round thread, is convenient to connecting line.
5. a kind of eccentric wellhead device according to claim 4 is characterized in that: the exit at main body threeway lateral oil paths is provided with tubing round thread and pressure testing joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201475378U CN201635692U (en) | 2010-04-01 | 2010-04-01 | Decentralized wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201475378U CN201635692U (en) | 2010-04-01 | 2010-04-01 | Decentralized wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635692U true CN201635692U (en) | 2010-11-17 |
Family
ID=43080181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201475378U Expired - Lifetime CN201635692U (en) | 2010-04-01 | 2010-04-01 | Decentralized wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781524A (en) * | 2016-01-07 | 2016-07-20 | 马志 | Whole-working-condition annulus test wellhead device |
-
2010
- 2010-04-01 CN CN2010201475378U patent/CN201635692U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781524A (en) * | 2016-01-07 | 2016-07-20 | 马志 | Whole-working-condition annulus test wellhead device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |