CN210105803U - Connecting device for polished rod sealer of thickened oil double-tube well - Google Patents
Connecting device for polished rod sealer of thickened oil double-tube well Download PDFInfo
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- CN210105803U CN210105803U CN201920680667.9U CN201920680667U CN210105803U CN 210105803 U CN210105803 U CN 210105803U CN 201920680667 U CN201920680667 U CN 201920680667U CN 210105803 U CN210105803 U CN 210105803U
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- well
- well head
- polished rod
- rod sealer
- pressure disk
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Abstract
The utility model relates to a double-barrelled well polished rod sealer connecting device of viscous crude, including the well head six-way, two screw thread downtheholes at well head six-way top all install sealed fender ring, and sealed top of keeping off the ring is equipped with the pressure disk, and the bottom of pressure disk pushes down to have two covers to establish and prevent changeing the pressure hoop on sealed fender ring outer wall, prevents changeing and presses the hoop below and all fill up and be equipped with the high temperature sealing ring, through a plurality of bolted connection between pressure disk and the well head six-way. The utility model discloses a double-barrelled well polished rod sealer connecting device of viscous crude reasonable in design, when needs workover or test operation, only need dismantle the bolt of pressure disk, just can make polished rod sealer or auxiliary pipe end cap and well head separation, avoided because of the series of problems that the thread gluing phenomenon appears, reduced field operation intensity of labour, save time, well head equipment is undamaged, is applicable to the viscous crude horizontal well of taking in and taking out, safe and reliable.
Description
Technical Field
The utility model relates to a double-barrelled well polished rod sealer connecting device of viscous crude.
Background
A huff-puff horizontal well is adopted for the heavy oil exploitation of most of the existing oil fields, a double-pipe structure is adopted in the production process of the horizontal well, wherein an auxiliary pipe is 23/8 in and internally connected with an oil pipe in a hooping way and is arranged to the tail end of a horizontal section, a main pipe is a 31/2 in flat oil pipe, and an injection-pumping dual-purpose oil pump is connected to the position of a well inclination angle of 60 ℃; when the steam is injected, the main pipe and the auxiliary pipe are injected simultaneously, the sucker rod string can be produced by directly lifting the sucker rod string during the rotary pumping, and the oil pipe is in a high-temperature and high-pressure environment. However, at the well head joint, the main pipe polish rod sealer is connected with the well head mainly through an 31/2 inTBG oil pipe buckle and is connected with the double-pipe shell, and the auxiliary pipe plug is connected with the double-pipe shell through a 4TBG oil pipe buckle. The oil pipe buckle can generate a thread gluing condition after working for a period of time under a pressurized high-temperature state, and is difficult to disassemble on site in the operation processes of horizontal well pump inspection, well repair and the like; and once the oil pipe buckle on the double-pipe shell is damaged, the whole double-pipe shell is replaced, so that the field operation has the disadvantages of high labor intensity, labor and time waste, high well repairing operation cost, serious damage of wellhead equipment and increase of the operation cost of the oil field. Improvements are needed. To solve this problem, we developed a polished rod sealer connection device for a heavy oil double-pipe well according to on-site investigation and communication.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a double-barrelled well polish rod sealer connecting device of viscous crude.
The utility model discloses a double-barrelled well polished rod sealer connecting device of viscous crude, including the well head six-way, install first sealed fender ring and second sealing ring respectively in first screw thread hole and the second screw thread hole at well head six-way top, the top that first sealed fender ring is equipped with the pressure disk, the bottom of pressure disk pushes down to have and establishes respectively that first preventing that it prevents on first sealed fender ring and the second sealing ring outer wall turns up the hoop to turn over to press hoop and second, and first below and the second that prevents that it prevents to turn over to press the hoop are equipped with first high temperature sealing ring and second high temperature sealing ring respectively, through a plurality of bolted connection between pressure disk and the well head six-way.
The utility model discloses a double-barrelled well polished rod sealer connecting device of viscous crude, the number of bolt is four.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a double-barrelled well polished rod sealer connecting device of viscous crude reasonable in design, when needs workover or test operation, only need dismantle the bolt of pressure disk, just can make polished rod sealer or auxiliary pipe end cap and well head separation, avoided because of the series of problems that the thread gluing phenomenon appears, reduced field operation intensity of labour, save time, well head equipment is undamaged, is applicable to the viscous crude horizontal well of taking in and taking out, safe and reliable.
Drawings
Fig. 1 is a schematic structural diagram of a polished rod sealer connecting device for a thickened oil double-barreled well according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural view of a pressure plate in a polished rod sealer connecting device for a thickened oil double-barreled well according to an embodiment of the present invention.
In the figure:
1. a well head is six-way; 2. a first threaded inner bore; 3. a second threaded inner bore; 4. a first seal retainer ring; 5. a second seal ring; 6. a platen; 7. a first anti-rotation pressure hoop; 8. a second anti-rotation pressing hoop; 9. a first high temperature seal ring; 10. a second high temperature seal ring.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1-3, a double-barrelled well polished rod sealer connecting device of viscous crude, including well head six-way 1, install first sealed fender ring 4 and second sealing ring 5 in first screw thread hole 2 and the second screw thread hole 3 at well head six-way 1 top respectively, the top of first sealed fender ring 4 is equipped with pressure disk 6, the bottom of pressure disk 6 pushes down to have and overlaps respectively to establish first anti-rotation clamp 7 and the second anti-rotation clamp 8 on first sealed fender ring 4 and the second sealing ring 5 outer wall, the below of first anti-rotation clamp 7 and the below of second anti-rotation clamp 8 are equipped with first high temperature seal ring 9 and second high temperature seal ring 10 respectively, through a plurality of bolted connection between pressure disk 6 and the well head six-way 1.
The utility model discloses a double-barrelled well polished rod sealer connecting device of viscous crude, the number of bolt is four.
The utility model discloses a double-barrelled well polished rod sealer connecting device of viscous crude reasonable in design, when needs workover or test operation, only need dismantle the bolt of pressure disk, just can make polished rod sealer or auxiliary pipe end cap and well head separation, avoided because of the series of problems that the thread gluing phenomenon appears, reduced field operation intensity of labour, save time, well head equipment is undamaged, is applicable to the viscous crude horizontal well of taking in and taking out, safe and reliable.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides a double-barrelled well polished rod sealer connecting device of viscous crude, includes well head six-way (1), its characterized in that: install first sealed fender ring (4) and second sealing ring (5) in first screw thread hole (2) and the second screw thread hole (3) at well head six-way (1) top respectively, the top that first sealed fender ring (4) was equipped with pressure disk (6), the bottom of pressure disk (6) is pushed down to have to overlap respectively and is established first preventing that the hoop (7) and the second prevent rotating hoop (8) on first sealed fender ring (4) and second sealing ring (5) outer wall, the below of first preventing rotating hoop (7) and the below that the second prevented rotating hoop (8) are equipped with first high temperature seal ring (9) and second high temperature seal ring (10) respectively, through a plurality of bolted connection between pressure disk (6) and the well head six-way (1).
2. The thick oil dual-pipe well polish rod sealer attachment device of claim 1, wherein: the number of the bolts is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920680667.9U CN210105803U (en) | 2019-05-13 | 2019-05-13 | Connecting device for polished rod sealer of thickened oil double-tube well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920680667.9U CN210105803U (en) | 2019-05-13 | 2019-05-13 | Connecting device for polished rod sealer of thickened oil double-tube well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210105803U true CN210105803U (en) | 2020-02-21 |
Family
ID=69539120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920680667.9U Active CN210105803U (en) | 2019-05-13 | 2019-05-13 | Connecting device for polished rod sealer of thickened oil double-tube well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210105803U (en) |
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2019
- 2019-05-13 CN CN201920680667.9U patent/CN210105803U/en active Active
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