CN205259994U - Annular testing wellhead assembly - Google Patents
Annular testing wellhead assembly Download PDFInfo
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- CN205259994U CN205259994U CN201620018420.7U CN201620018420U CN205259994U CN 205259994 U CN205259994 U CN 205259994U CN 201620018420 U CN201620018420 U CN 201620018420U CN 205259994 U CN205259994 U CN 205259994U
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- wellhead assembly
- hanger
- eccentric
- suppending hole
- eccentric hanger
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005065 mining Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses an annular testing wellhead assembly belongs to oil mining devices technical field. An annular testing wellhead assembly, includes: the pipe fitting has interconnection and longitudinal channel, eccentric hanger rotationally sets up in the longitudinal channel, with longitudinal channel is coaxial to be arranged, on the eccentric hanger, be equipped with along its axial that first hang the hole and the second hangs the hole, locking mechanism sets up longitudinal channel is last, follows eccentric hanger radially right the outer wall of eccentric hanger is locked, in order to prevent eccentric hanger is relative longitudinal channel rotates or axial displacement. Adopt the utility model discloses, the maintenance efficiency of equipment, reduction in production cost have been improved.
Description
Technical field
The utility model relates to oil exploitation device technique field, relates in particular to a kind of annulus logging wellhead assembly.
Background technology
Oil is the valuable source that supports contemporary industry development, and its requirement is increasing. Oil field development technology obtainsArrived remarkable progress, along with the expansion of limit of mining, subterranean oil hydrodynamic(al) state also becomes and becomes increasingly complex. ForOil pumping production phase high water-cut stage obtains high yield, stable yields, needs the timely detection of testing equipment. Annulus logging wellMouth device is the pumping well head device that Oil Field is conventional, the operation of can testing simultaneously and pump, and realization is taken outOil well dynamic monitoring. The data of testing can reflect the current intelligence of rod-pumped well truly, for oil field development is movedState analysis and production management provide the reliable firsthand information.
Current annulus logging wellhead assembly comprises four-way pipe fitting, eccentric hanger and end cap; By at four-way pipeThe fixing end cap in end of part prevents that eccentric hanger from moving axially. In the time changing parts and workover treatment, needPreventer to be connected to the end of the four-way pipe fitting that is provided with end cap. Because end cap plays main protective action, soNeed, after first emptying borehole pressure, to remove end cap, could connect preventer, become overhaul efficiency to reduce, increasedProduction cost.
Utility model content
In view of this, the utility model provides a kind of annulus logging wellhead assembly, and main purpose is raising equipmentOverhaul efficiency, reduce production costs.
For achieving the above object, the utility model mainly provides following technical scheme:
Embodiment of the present utility model provides a kind of annulus logging wellhead assembly, comprising:
Pipe fitting, has interconnection and vertical passage;
Eccentric hanger, is arranged in described vertical passage rotationally, coaxially arranged with described vertical passage;On described eccentric hanger, be axially arranged with the first suppending hole and the second suppending hole along it;
Retaining mechanism, is arranged on described vertical passage, along radially described bias being hanged of described eccentric hangerThe outer wall of hanging device is locked, for preventing that described eccentric hanger from rotating or axially moving relative to described vertical passageMoving.
Further, more described the second suppending hole of the wheelbase of described the first suppending hole and described eccentric hanger and instituteThe wheelbase of stating eccentric hanger is little.
Further, also comprise:
Backplate is ring-type; Be arranged on the upper end of described vertical passage;
The outer wall of described eccentric hanger is provided with boss, and one end of described backplate is sleeved on described eccentric hangerOn boss, for preventing that described eccentric hanger from moving up;
Described backplate is spliced by least two fan rings.
Further, also comprise:
Oil pick-up tube, is inserted in described the first suppending hole, is supported, to pump by described the first suppending hole;
Testing tube, is inserted in described the second suppending hole, is supported, for test by described the second suppending hole;
Described testing tube is provided with test valve body, and described test valve body is removably connected on described testing tube,For controlling the break-make of described testing tube.
Further, the top and bottom of described the first suppending hole have gas thread, to connect described oil pick-up tube;The upper end of described the second suppending hole has gas thread, to connect described testing tube; The lower end of described the second suppending holeFor horn mouth.
Further, the lower end of described eccentric hanger is arranged in described vertical passage by bearing; Described verticalBe flange arrangement to the upper end of passage, for connecting described backplate or external equipment.
Further, also comprise:
Preventer, is arranged on the upper end of described vertical passage;
The internal diameter of described preventer is large compared with the external diameter of described eccentric hanger, so that described eccentric hanger can lead toThe inner passage of crossing described preventer proposes.
Further, the outer wall of described eccentric hanger is provided with groove, and one end of described retaining mechanism is positioned at instituteState in groove.
Further, described retaining mechanism is jackscrew, and described jackscrew is one or more.
Further, described groove is annular groove.
By technique scheme, the utility model annulus logging wellhead assembly at least has following advantages:
The annulus logging wellhead assembly that the utility model provides, retaining mechanism along eccentric hanger radially to biasHanger is locked, and does not interfere the end of pipe fitting to connect other parts such as preventer, and can realize biasThe locking of hanger, while making equipment overhaul, does not need first emptying borehole pressure, has improved upkeep operationEfficiency, has reduced production cost.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand the utility modelTechnological means, and can be implemented according to the content of description, below with preferred embodiment of the present utility modelAnd coordinate accompanying drawing to be described in detail as follows.
Brief description of the drawings
A kind of annulus logging wellhead assembly schematic diagram that Fig. 1 provides for the utility model embodiment;
Fig. 2 is A-A cutaway view in Fig. 1;
Fig. 3 has preventer and blanking plug for a kind of annulus logging wellhead assembly that the utility model embodiment providesSchematic diagram.
Shown in figure:
1 is test valve body, and 2 is oil pick-up tube, and 3 is backplate, and 4 is eccentric hanger, and 4-1 is the first suppending hole,4-2 is the second suppending hole, and 4-3 is groove, and 5 is sealing ring, and 6 is bearing, and 7 is pipe fitting, and 7-1 is laterally logicalRoad, 7-2 is vertical passage, and 8 is active joint, and 9 is retaining mechanism, and 10 is testing tube, 11 is preventer,12 is blanking plug.
Detailed description of the invention
Technological means and the merit taked for reaching predetermined utility model object for further setting forth the utility modelEffect, below in conjunction with accompanying drawing and preferred embodiment, to the detailed description of the invention according to the utility model application, structure,Feature and effect thereof, be described in detail as follows. In following explanation, different " embodiment " or " embodiment "The not necessarily same embodiment referring to. In addition special characteristic, structure or the feature in one or more embodiment,Can be combined by any suitable form.
As shown in Figure 1 to Figure 3, a kind of annulus logging wellhead assembly that an embodiment of the present utility model proposes,Comprise: pipe fitting 7, eccentric hanger 4 and retaining mechanism 9.
Pipe fitting 7 has interconnection 7-1 and vertical passage 7-2; Interconnection 7-1 and vertical passage 7-2 are mutualIntersect, form four-way; Certainly do not get rid of interconnection 7-1 and vertical passage 7-2 intersects to form threeway mutually.Do not get rid of interconnection 7-1 mutually vertical with vertical passage 7-2 yet. Vertical passage 7-2 vertically arranges, one endUpwards, the other end is downward. Interconnection 7-1 is for fuel-displaced.
Eccentric hanger 4 is arranged in vertical passage 7-2 rotationally, and 7-2 is coaxially arranged with vertical passage;Eccentric hanger 4 cooperatively interacts with vertical passage 7-2, realizes sealing, and eccentric hanger 4 can be from longitudinallyIn passage 7-2, freely skid off. Certainly, between eccentric hanger 4 and vertical passage 7-2, sealing ring 5 can be set,Sealing ring 5 longitudinally passage 7-2 axially arrange multiple, to increase sealing. On eccentric hanger 4,Be axially arranged with the first suppending hole 4-1 and the second suppending hole 4-2 along eccentric hanger 4; The first suppending hole 4-1 andThe second suppending hole 4-2 is through hole.
It is upper that retaining mechanism 9 is arranged on vertical passage 7-2, along eccentric hanger 4 radially to eccentric hanger 4Locking, to prevent that eccentric hanger 4 from rotating or moving axially relative to vertical passage 7-2. Along eccentric hanger 4Radially its outer wall is locked, can be conveniently in the time that needs overhaul, vertical passage 7-2 upper end connect preventer11. After being unlocked, can move vertically by eccentric hanger 4, through preventer 11.
Retaining mechanism 9 is radially locked eccentric hanger 4 along eccentric hanger 4, does not interfere pipe fitting 7End connect preventer 11 other parts such as grade, and can realize the locking to eccentric hanger 4, make equipmentWhile maintenance, do not need first emptying borehole pressure, improved upkeep operation efficiency, reduced production cost.
As above-described embodiment preferably, the wheelbase of the first suppending hole 4-1 and eccentric hanger 4 is compared with the second suspensionThe wheelbase of hole 4-2 and eccentric hanger 4 is little. The first suppending hole 4-1 is used for supporting oil pick-up tube 2, the second suppending holes4-2 is used for supporting testing tube 10, and the center line of oil pick-up tube 2 more approaches the center line of eccentric hanger 4, rightWhen oil well is tested, run into test cable and be wrapped in after the problem in oil pick-up tube 2, can separate jackscrew, by rightEccentric hanger 4 is rotated, unwrapping.
As above-described embodiment preferably, also comprise: backplate 3.
Backplate 3 is arranged on the upper end of vertical passage 7-2, can prevent from separating after jackscrew, and eccentric hanger 4 upwards movesMoving; Further, backplate 3 is removably connected to the upper end of vertical passage 7-2, with for convenience detach. Backplate 3Setting not only can prevent upwards play of eccentric hanger 4, and can prevent that foreign material from entering, equipment is madeBecome to pollute. The outer wall of eccentric hanger 4 is provided with boss, and the top of boss has two planes or the phase that be arranged in parallelThe multiple planes that be arranged in parallel mutually, with in the time that test cable is wound, instrument rotation easy to use; Backplate 3One end is sleeved on the boss of eccentric hanger 4, for preventing that eccentric hanger 4 from moving up.
Backplate 3 is spliced into a ring-type by least two fan rings, facilitates installing/dismounting, does not need to get around oil pick-up tube 2With testing tube 10, can complete dismounting. The preferred backplate 3 of the present embodiment is made up of two fan rings, easy to operate,Be easy to processing. Eccentric hanger 4 mainly limits it by retaining mechanism 9 and moves axially, and backplate 3 plays auxiliaryLimit and prevent the effect that foreign material enter.
As above-described embodiment preferably, also comprise: oil pick-up tube 2 and testing tube 10.
Oil pick-up tube 2 is inserted in the first suppending hole 4-1, is supported, to pump by the first suppending hole 4-1.The external diameter of oil pick-up tube 2 has place's reducing at least, to coordinate and to be draped with the first suppending hole 4-1.
Testing tube 10 is inserted in the second suppending hole 4-2, is supported, for test by the second suppending hole 4-2; WhenSo, this preferred embodiment is not got rid of testing tube 10 yet and is fixedly attached in the second suppending hole 4-2, or with secondSuppending hole 4-2 is wholely set;
Testing tube 10 is provided with test valve body 1, and test valve body 1 is removably connected on testing tube 10, forControl the break-make of testing tube 10. Further, test valve body 1 can connect by active joint 8 and testing tube 10Connect, so that dismounting.
As above-described embodiment preferably, the top and bottom of the first suppending hole 4-1 have gas thread, take out to connectOil pipe 2; The upper end of the second suppending hole 4-2 has gas thread, with connecting test pipe 10; The second suppending hole 4-2'sLower end is horn mouth, in case tester reclaim time jam. Alternately, the first suppending hole 4-1 and second hangsIt is larger that hole 4-2 is upper diameter, the stepped hole that lower diameter is less; The tube wall of oil pick-up tube 2 and testing tube 10Be provided with bulge loop, coordinate with the first suppending hole 4-1 and the second suppending hole 4-2, realize and hanging.
As above-described embodiment preferably, the lower end of eccentric hanger 4 is arranged on vertical passage 7-2 by bearing 6In, to be supported and to rotate by vertical passage 7-2; The preferred bearing 6 of the present embodiment is thrust ball bearing.
The upper end of vertical passage 7-2 is flange arrangement, for connecting backplate 3 or external equipment. Flange arrangement connectsConnect reliably convenient disassembly.
As above-described embodiment preferably, also comprise: preventer 11.
Preventer 11 is arranged on the upper end of vertical passage 7-2; The preferred preventer 11 of the present embodiment is flashboard blowout preventionDevice.
The internal diameter of preventer 11 is large compared with the external diameter of eccentric hanger 4, so that eccentric hanger 4 can be by blowout preventionThe inner passage of device 11 passes. Need handling oil pick-up tube 2 in well workover Operating Pressure time, retaining mechanism 9 pinesOpen, testing tube 10 is closed, then shed backplate 3, by eccentric hanger 4, oil pick-up tube 2 and testing tube 10 1Rise and take out. If test valve body 1 volume on testing tube 10 is excessive, need with blanking plug 12 testing tube10 stop up, then lay down backplate 3 and test valve body 1, finally by eccentric hanger 4, oil pick-up tube 2 and testing tube10 take out together. In the time taking out eccentric hanger 4, oil pick-up tube 2 and testing tube 10, can be direct by craneEccentric hanger 4 is taken out.
As above-described embodiment preferably, the outer wall of eccentric hanger 4 is provided with groove 4-3, described in receivingRetaining mechanism, is locked by described retaining mechanism.
As above-described embodiment preferably, groove 4-3 is located at the upper end of eccentric hanger 4, with handled easily.The preferred groove 4-3 of the present embodiment is annular groove, to facilitate processing and operation. When groove 4-3 is annular grooveOnly need jackscrew and annular groove on same diameter, one or more jackscrew all can be arranged on eccentric outstandingOn the outer wall of hanging device 4.
As above-described embodiment preferably, retaining mechanism 9 is jackscrew, jackscrew is one or more. This realityExecuting the preferred jackscrew of example is 4.
As above-described embodiment preferably, the number of groove 4-3 is consistent with the number of jackscrew, as groove 4-3Be when more than two, be evenly arranged on the outer wall of eccentric hanger 4.
The annulus logging wellhead assembly that the present embodiment provides, can be by eccentric hanger 4, oil pick-up tube 2 and testing tube10 together through preventer 11 handlings, and realize band pressure and carry out more exchange device and workover treatment, and eccentric suspensionDevice 4 can 360 ° of rotations, solve the problems such as test cable coiled tubing, and overhaul efficiency is high, and production cost reduces.
The above, be only preferred embodiment of the present utility model, not the utility model done to any shapeRestriction in formula, any simple modification of above embodiment being done according to technical spirit of the present utility model, etc.With changing and modifying, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. an annulus logging wellhead assembly, is characterized in that, comprising:
Pipe fitting, has interconnection and vertical passage;
Eccentric hanger, is arranged in described vertical passage rotationally, coaxially arranged with described vertical passage;On described eccentric hanger, be axially arranged with the first suppending hole and the second suppending hole along it;
Retaining mechanism, is arranged on described vertical passage, along radially described bias being hanged of described eccentric hangerThe outer wall of hanging device is locked, for preventing that described eccentric hanger from rotating or axially moving relative to described vertical passageMoving.
2. annulus logging wellhead assembly according to claim 1, is characterized in that,
More described second suppending hole of wheelbase of described the first suppending hole and described eccentric hanger and described eccentric suspensionThe wheelbase of device is little.
3. annulus logging wellhead assembly according to claim 1, is characterized in that, also comprises:
Backplate is ring-type; Be arranged on the upper end of described vertical passage;
The outer wall of described eccentric hanger is provided with boss, and one end of described backplate is sleeved on described eccentric hangerOn boss, for preventing that described eccentric hanger from moving up;
Described backplate is spliced by least two fan rings.
4. annulus logging wellhead assembly according to claim 2, is characterized in that, also comprises:
Oil pick-up tube, is inserted in described the first suppending hole, is supported, to pump by described the first suppending hole;
Testing tube, is inserted in described the second suppending hole, is supported, for test by described the second suppending hole;
Described testing tube is provided with test valve body, and described test valve body is removably connected on described testing tube,For controlling the break-make of described testing tube.
5. annulus logging wellhead assembly according to claim 4, is characterized in that,
The top and bottom of described the first suppending hole have gas thread, to connect described oil pick-up tube; Described second is outstandingThe upper end of hanging hole has gas thread, to connect described testing tube; The lower end of described the second suppending hole is horn mouth.
6. annulus logging wellhead assembly according to claim 3, is characterized in that,
The lower end of described eccentric hanger is arranged in described vertical passage by bearing; Described vertical passage upperEnd is for flange arrangement, for connecting described backplate or external equipment.
7. annulus logging wellhead assembly according to claim 1, is characterized in that, also comprises:
Preventer, is arranged on the upper end of described vertical passage;
The internal diameter of described preventer is large compared with the external diameter of described eccentric hanger, so that described eccentric hanger can lead toThe inner passage of crossing described preventer proposes.
8. according to the annulus logging wellhead assembly described in claim 1-7 any one, it is characterized in that,
The outer wall of described eccentric hanger is provided with groove, and one end of described retaining mechanism is positioned at described groove.
9. annulus logging wellhead assembly according to claim 8, is characterized in that,
Described retaining mechanism is jackscrew, and described jackscrew is one or more.
10. annulus logging wellhead assembly according to claim 9, is characterized in that,
Described groove is annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018420.7U CN205259994U (en) | 2016-01-08 | 2016-01-08 | Annular testing wellhead assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018420.7U CN205259994U (en) | 2016-01-08 | 2016-01-08 | Annular testing wellhead assembly |
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| Publication Number | Publication Date |
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| CN205259994U true CN205259994U (en) | 2016-05-25 |
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| CN201620018420.7U Active CN205259994U (en) | 2016-01-08 | 2016-01-08 | Annular testing wellhead assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050218A (en) * | 2016-07-15 | 2016-10-26 | 中国石油天然气集团公司 | Annulus testing well head device for operation under pressure |
-
2016
- 2016-01-08 CN CN201620018420.7U patent/CN205259994U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050218A (en) * | 2016-07-15 | 2016-10-26 | 中国石油天然气集团公司 | Annulus testing well head device for operation under pressure |
| CN106050218B (en) * | 2016-07-15 | 2023-04-07 | 中国石油天然气集团公司 | Annulus testing wellhead device for operation under pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190111 Address after: 214000 North Section of Xicheng Road Weir Bridge, Weishan Street, Wuxi City, Jiangsu Province, 28-18 Patentee after: WUXI SLFH PETROCHEMICAL EQUIPMENT TECHNOLOGY CO., LTD. Address before: 224400 Cuiwan Garden No. 7 501, Funing County, Yancheng City, Jiangsu Province Patentee before: Yuan Hucheng |
|
| TR01 | Transfer of patent right |