CN219366000U - Quick packer special for oilfield test water shutoff - Google Patents
Quick packer special for oilfield test water shutoff Download PDFInfo
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- CN219366000U CN219366000U CN202320524079.2U CN202320524079U CN219366000U CN 219366000 U CN219366000 U CN 219366000U CN 202320524079 U CN202320524079 U CN 202320524079U CN 219366000 U CN219366000 U CN 219366000U
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- track
- water shutoff
- oilfield
- swivel
- cone
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Abstract
The utility model relates to the field of oilfield downhole tools and discloses a special quick packer for oilfield test water shutoff, which comprises a central pipe, an upper joint and a lower joint at two ends, wherein the central pipe is sequentially sleeved with an adjusting ring, a first rubber cylinder, a first spacing ring, a second rubber cylinder, a second spacing ring, a third rubber cylinder, a cone connecting sleeve, a baffle ring, a cone, a supporting mechanism, a swivel and a swivel pressing cap from top to bottom; two sets of groove-type double tracks which are symmetrically distributed are processed on the outer circle surface of the lower part of the central tube; the supporting mechanism comprises slips and a groove body, and clamping grooves for installing six slips are uniformly formed in the circumferential direction of the upper part of the groove body; the swivel is radially provided with two symmetrical track pins. The utility model has reasonable structure, smooth assembly and easy processing and manufacturing; the double tracks help the central tube to shorten; the operation is simple, the unidirectional setting can be realized quickly by lifting and lowering, and the setting effect is good; lifting and unsealing, so that the packaging is not easy to be blocked; the method is favorable for improving the specialization implementation level of the test water blocking seal.
Description
Technical Field
The utility model relates to the field of downhole tools in oil fields, in particular to a special quick packer for water shutoff in oil field testing.
Background
The packer is a downhole tool connected to a downhole tubular column and used for sealing and isolating annular spaces of the oil pipe and the oil-gas-water well sleeve, and aims to provide reliable guarantee for normal production of the oil-gas-water well and smooth realization of various downhole technological measures. Although packers are of various types and are characterized, conventional packers have been found to suffer from a number of non-negligible problems in field applications, particularly as embodied: the structure is complex and the manufacture is difficult; the lifting distance of the single track is longer; the rotary setting is required, the operation is inconvenient, and the setting effect is affected; deblocking is easy to be blocked; excessive pursuit of multiple uses has poor levels of specialized implementation.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a special quick packer for oilfield test water shutoff.
The technical proposal is as follows: the device comprises a central tube, wherein an upper joint and a lower joint are respectively arranged at the upper end and the lower end of the central tube, and the device is characterized in that an adjusting ring, a first rubber cylinder, a first spacing ring, a second rubber cylinder, a second spacing ring, a third rubber cylinder, a cone connecting sleeve, a baffle ring, a cone, a supporting mechanism, a swivel and a swivel pressing cap are sequentially sleeved on the central tube from top to bottom; two sets of groove-shaped tracks which are symmetrically distributed are processed on the outer circle surface of the lower part of the central tube, each set of groove-shaped track comprises a long track and a short track, the long track and the short track are converged at the bottom dead center of the track, and the middle of the long track and the short track realizes track changing through a communication track; the adjusting ring is in threaded connection with the upper joint; the baffle ring is in threaded connection with the central tube; the cone is in threaded connection with the cone connecting sleeve, the inner diameter of the central hole at the lower end of the cone is matched with the outer diameter of the central tube, and the inner diameter of the central hole at the rest part is matched with the outer diameter of the baffle ring; the support mechanism comprises a slip and a groove body, wherein a plurality of clamping grooves are uniformly formed in the circumferential direction of the upper part of the groove body, the upper ends of the clamping grooves are connected into a whole through a clamp, slip teeth are arranged on the outer side of the upper part of the slip, the lower part of the slip penetrates through the lower side of the clamp and is installed in the clamping grooves, a spring is arranged between the lower part of the slip and an inner plate of the clamping grooves, and the lower part of the groove body is in threaded connection with a swivel nut; the swivel is sleeved in the swivel nut, two symmetrical pin holes are radially formed in the swivel, track pins are arranged in the pin holes, and the swivel rotates through sliding of the track pins along the groove type track.
The above technical scheme can be further optimized as:
the long track sequentially passes through a long straight section, an outer inclined section, a short straight section and an inner inclined section from the top dead center of the long track to reach the bottom dead center of the track; the communication track starts to transition to the lower part of the short track at the outer inclined section of the long track, and is provided with a communication track bottom dead center in the middle; the short track starts straight from the short track top dead center to the track bottom dead center.
Six clamping grooves are formed, and six slips are correspondingly formed.
Two springs are arranged between the lower part of the slip and the inner plate of the clamping groove.
And a first fastening screw is additionally arranged at the joint of the adjusting ring and the upper joint.
And a second fastening screw is additionally arranged at the joint of the cone and the cone connecting sleeve.
And a third fastening screw is additionally arranged at the joint of the lower part of the groove body and the swivel nut.
The first rubber cylinder, the second rubber cylinder and the third rubber cylinder are made of oil-resistant and high-temperature-resistant rubber materials.
The slips are made of 20Cr steel.
Compared with the prior art, the utility model has the following beneficial technical effects:
1. the utility model has reasonable structure and smooth assembly, and is beneficial to mechanical processing and manufacturing.
2. The utility model is provided with two sets of groove type rails which are symmetrically distributed, each set of groove type rail adopts double rails, the rail change can be realized in the middle of each set of groove type rail, the lifting distance can be effectively shortened compared with the traditional single rail, and the central tube can be correspondingly shortened.
3. The utility model has simple operation, can quickly realize unidirectional setting by lifting and lowering, and has good setting effect; lifting and unsealing are not easy to be blocked.
4. The utility model is mainly used for oilfield testing water shutoff and is beneficial to improving the specialized implementation level.
5. The utility model is safe and reliable in the use process, and can be widely applied to oil fields.
Drawings
FIG. 1 is a schematic diagram of the structural layout of the present utility model;
FIG. 2 is an expanded view of one of the two sets of grooved rails symmetrically distributed on the lower outer circumferential surface of the center tube;
in the figure: the device comprises a 1-upper joint, a 2-adjusting ring, a 3-first rubber cylinder, a 4-first spacer ring, a 5-second rubber cylinder, a 6-second spacer ring, a 7-third rubber cylinder, an 8-cone connecting sleeve, a 9-baffle ring, a 10-cone, an 11-slip, 11.1-slip teeth, a 12-clamp, a 13-spring, a 14-clamping groove, a 15-groove body, a 16-swivel nut, a 17-track pin, a 18-swivel, a 19-central tube, a 20-short track, a 20.1-short track top dead center, a 21-lower joint, a 22-long track, a 22.1-long track top dead center, a 22.2-long straight section, a 22.3-outer inclined section, a 22.4-short straight section, a 22.5-inner inclined section, a 23-third fastening screw, a 24-second fastening screw, a 25-first fastening screw, a 26-track, a 26-communication track bottom dead center, a 27-track bottom dead center.
Detailed Description
The present utility model will be described in detail with reference to the following examples and drawings.
Example 1
See fig. 1 and 2. The special quick packer for oilfield test water shutoff comprises a central pipe 19, wherein an upper joint 1 and a lower joint 21 are respectively arranged at the upper end and the lower end of the central pipe 19, and an adjusting ring 2, a first rubber cylinder 3, a first spacing ring 4, a second rubber cylinder 5, a second spacing ring 6, a third rubber cylinder 7, a cone connecting sleeve 8, a baffle ring 9, a cone 10, a supporting mechanism, a swivel 9 and a swivel pressing cap 16 are sequentially sleeved on the central pipe 19 from top to bottom; two sets of groove-shaped tracks which are symmetrically distributed are processed on the outer circle surface of the lower part of the central tube 19, each set of groove-shaped track comprises a long track 22 and a short track 20, the long track 22 and the short track 20 are converged at a track bottom dead center 27, and the rail change is realized between the long track 22 and the short track 20 through a communicating track 26; the adjusting ring 2 is in threaded connection with the upper joint 1; the baffle ring 9 is in threaded connection with the central tube 19; the cone 10 is in threaded connection with the cone connecting sleeve 8, the inner diameter of the central hole at the lower end of the cone 10 is matched with the outer diameter of the central tube 19, and the inner diameter of the central hole at the rest part is matched with the outer diameter of the baffle ring 9; the support mechanism comprises a slip 11 and a groove body 15, a plurality of clamping grooves 14 are uniformly formed in the circumferential direction of the upper part of the groove body 15, the upper ends of the clamping grooves 14 are connected into a whole by a clamp 12, slip teeth 11.1 are arranged on the outer side of the upper part of the slip 11, the lower part of the slip 11 passes through the lower side of the clamp 12 and is installed in the clamping groove 14, a spring 13 is arranged between the lower part of the slip 11 and the inner plate of the clamping groove 14, and the lower part of the groove body 15 is in threaded connection with a swivel nut 16; the swivel 9 is sleeved in the swivel nut 16, two symmetrical pin holes are radially formed in the swivel 9, track pins 17 are installed in the pin holes, and the swivel 9 rotates through sliding of the track pins 17 along the groove type track.
Example 2
See fig. 1 and 2. On the basis of the technical scheme described in the embodiment 1, the special quick packer for oilfield test water shutoff is further refined as follows: the long rail 22 sequentially passes through the long straight section 22.2, the outer inclined section 22.3, the short straight section 22.4 and the inner inclined section 22.5 from the long rail top dead center 22.1 to reach the rail bottom dead center 27; the communication track 26 starts to transition to the lower part of the short track 20 at the outer inclined section 22.3 of the long track 22 and is provided with a communication track bottom dead center 26.1 midway; the short rail 20 reaches the rail bottom dead center 27 straight from the short rail top dead center 20.1. The long rail 22, the short rail 20 and the communicating rail 26 are combined to form a complete set of grooved rails. Two complete grooved rails are provided and are completely symmetrical on the outer circumferential surface of the lower part of the central tube 19, and 2 rail pins 17 mounted on the swivel 9 are also completely symmetrical, and each rail pin 17 is inserted into a corresponding complete grooved rail during operation, so that the swivel 9 rotates smoothly under the balanced sliding action of the 2 rail pins 17.
Example 3
See fig. 1 and 2. On the basis of the technical scheme described in the embodiment 1, the special quick packer for oilfield test water shutoff is further refined as follows: six clamping grooves 14 are provided, and six slips 11 are provided correspondingly. Six slips 11 are evenly distributed in the circumferential direction, and can be used for gripping the inner wall of the sleeve in all directions after being evenly spread on the cone 10, so that the optimal setting effect can be achieved.
Example 4
See fig. 1 and 2. On the basis of the technical scheme described in the embodiment 1, the special quick packer for oilfield test water shutoff is further refined as follows: two springs 13 are arranged between the lower part of the slip 11 and the inner plate of the clamping groove 14. The provision of two springs 13 allows for greater equalization and safety of the slips 11 during opening and closing.
Example 5
See fig. 1 and 2. On the basis of the technical scheme described in the embodiment 1, the special quick packer for oilfield test water shutoff is further refined as follows: a first fastening screw 25 is additionally arranged at the joint of the adjusting ring 2 and the upper joint 1; a second fastening screw 24 is additionally arranged at the joint of the cone 10 and the cone connecting sleeve 8; a third fastening screw 23 is additionally arranged at the joint of the lower part of the groove body 15 and the swivel nut 16.
Example 6
See fig. 1 and 2. On the basis of the technical scheme described in the embodiment 1, the special quick packer for oilfield test water shutoff is further refined as follows: the first rubber cylinder 3, the second rubber cylinder 5 and the third rubber cylinder 7 are made of oil-resistant and high-temperature-resistant rubber materials, so that the adaptability of the rubber cylinders is enhanced, and the service life of the rubber cylinders is prolonged. The slip 11 is made of 20Cr steel mainly because the 20Cr steel has high strength and excellent wear resistance.
For a better understanding of the present utility model, the basic working principle thereof will now be briefly described as follows:
when the oil field test water shutoff needs layering operation, the upper joint 1 of the packer is installed at the lower end of the pipe column. When the packer is in a well, the track pin 17 is positioned at the top dead center 20.1 of the short track, and the cone 10 and the slips 11 are separated from each other; when the pipe column is lifted up to a preset position, the track pin 17 slides down the short track 20; when a certain height is mentioned on the pipe column, the track pin 17 reaches the track bottom dead center 27; then the pipe column is lowered, the rail pins 17 enter the long rail 22 and sequentially ascend along the inner inclined section 22.5, the short straight section 22.4 and the outer inclined section 22.3, finally enter the long straight section 22.2, and the cone 10 props up the slips 11, so that the slips 11 are clamped on the inner wall of the sleeve, and the slip teeth 11.1 bite the inner wall of the sleeve tightly; and then the pipe column is lowered, under the action of certain weight of the pipe column, the upper joint 1, the central pipe 19 and the adjusting ring 2 are used for downwards compressing the first rubber cylinder 3, the second rubber cylinder 5 and the third rubber cylinder 7 together, so that the diameters of the 3 rubber cylinders are increased, the sealing of an oil sleeve annulus is realized, and the packer setting is completed. When the seal is required to be released, the pipe column is lifted up, the upper joint 1, the central pipe 19 and the adjusting ring 2 are lifted up together, the track pin 17 moves to a communicated track bottom dead center 26.1, the cone 10 is withdrawn from the slip 11, and the slip 11 is separated from the inner wall of the sleeve; meanwhile, the pressure born by the 3 rubber barrels is eliminated, the annulus of the oil sleeve is restored, and the packer is completed.
Claims (9)
1. The special quick packer for oilfield test water shutoff comprises a central pipe, wherein an upper joint and a lower joint are respectively arranged at the upper end and the lower end of the central pipe; two sets of groove-shaped tracks which are symmetrically distributed are processed on the outer circle surface of the lower part of the central tube, each set of groove-shaped track comprises a long track and a short track, the long track and the short track are converged at the bottom dead center of the track, and the middle of the long track and the short track realizes track changing through a communication track; the adjusting ring is in threaded connection with the upper joint; the baffle ring is in threaded connection with the central tube; the cone is in threaded connection with the cone connecting sleeve, the inner diameter of the central hole at the lower end of the cone is matched with the outer diameter of the central tube, and the inner diameter of the central hole at the rest part is matched with the outer diameter of the baffle ring; the support mechanism comprises a slip and a groove body, wherein a plurality of clamping grooves are uniformly formed in the circumferential direction of the upper part of the groove body, the upper ends of the clamping grooves are connected into a whole through a clamp, slip teeth are arranged on the outer side of the upper part of the slip, the lower part of the slip penetrates through the lower side of the clamp and is installed in the clamping grooves, a spring is arranged between the lower part of the slip and an inner plate of the clamping grooves, and the lower part of the groove body is in threaded connection with a swivel nut; the swivel is sleeved in the swivel nut, two symmetrical pin holes are radially formed in the swivel, track pins are arranged in the pin holes, and the swivel rotates through sliding of the track pins along the groove type track.
2. The quick packer for oilfield test water shutoff as recited in claim 1, wherein the long track sequentially passes through the long straight section, the outer inclined section, the short straight section and the inner inclined section from the long track top dead center to the track bottom dead center; the communication track starts to transition to the lower part of the short track at the outer inclined section of the long track, and is provided with a communication track bottom dead center in the middle; the short track starts straight from the short track top dead center to the track bottom dead center.
3. The quick packer for oilfield testing water shutoff according to claim 1, wherein six clamping grooves are provided, and six slips are provided correspondingly.
4. The quick packer for oilfield test water shutoff as recited in claim 1, wherein two springs are disposed between the lower portion of the slips and the inner plate of the clamping groove.
5. The quick packer for oilfield testing water shutoff of claim 1, wherein the adjusting ring is provided with a first fastening screw at the junction with the upper joint.
6. The quick packer for oilfield testing water shutoff of claim 1, wherein a second fastening screw is additionally arranged at the joint of the cone and the cone connecting sleeve.
7. The quick packer for oilfield testing water shutoff of claim 1, wherein a third fastening screw is additionally arranged at the joint of the lower part of the tank body and the swivel nut.
8. The quick packer for oilfield testing water shutoff of claim 1, wherein the first rubber cylinder, the second rubber cylinder and the third rubber cylinder are all made of oil-resistant and high-temperature-resistant rubber materials.
9. The quick packer for oilfield test water shutoff as recited in claim 1, wherein the slips are made of 20Cr steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320524079.2U CN219366000U (en) | 2023-03-17 | 2023-03-17 | Quick packer special for oilfield test water shutoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320524079.2U CN219366000U (en) | 2023-03-17 | 2023-03-17 | Quick packer special for oilfield test water shutoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219366000U true CN219366000U (en) | 2023-07-18 |
Family
ID=87116165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320524079.2U Active CN219366000U (en) | 2023-03-17 | 2023-03-17 | Quick packer special for oilfield test water shutoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219366000U (en) |
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2023
- 2023-03-17 CN CN202320524079.2U patent/CN219366000U/en active Active
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