CN211648095U - Anchoring overcurrent device - Google Patents
Anchoring overcurrent device Download PDFInfo
- Publication number
- CN211648095U CN211648095U CN201921511866.3U CN201921511866U CN211648095U CN 211648095 U CN211648095 U CN 211648095U CN 201921511866 U CN201921511866 U CN 201921511866U CN 211648095 U CN211648095 U CN 211648095U
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- CN
- China
- Prior art keywords
- packer
- anchoring
- pipeline body
- oil outlet
- rubber barrel
- 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.)
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Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000012856 packing Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides an anchoring overflowing device, which comprises a packer, a righting mechanism, a continuous oil pipe, a sealing joint, an oil outlet, a pipeline body, a deblocking sleeve, a deblocking mechanism, slips, a rubber barrel, a locking mechanism, a double-hydraulic-cylinder mechanism, a tool connecting mechanism and a snap ring, wherein the continuous oil pipe is connected with the sealing joint; the packer is arranged at the bottom of the anchoring overflowing device, a pipeline body penetrating through is coaxially arranged above the packer, an oil outlet is formed in the side end, through which the pipeline body penetrates, and used for providing an oil outlet channel, the upper portion of the anchoring overflowing device is in threaded connection with a continuous oil pipe to be connected with a sealing joint, the unpacking sleeve is locked or unpacked through an unpacking mechanism, and the clamp ring extrudes the rubber barrel to enable the rubber barrel to be compressed and expanded; and the unlocking and locking mechanism is driven by the double-hydraulic-cylinder mechanism to realize the axial movement of the packer.
Description
Technical Field
The utility model relates to an oil field development technical field, concretely relates to anchoring overcurrent device.
Background
Resource exploration and recovery systems typically use packers along the string. The packers create zones in the formation that may be isolated from each other. Typically, packers are mounted on the outer surface of the pipe, forming part of the pipe string. The string is run into the formation to the desired depth and the packer is activated. In many cases, the packer is activated by a shifting tool. A ring disposed on one side of the packer may constrain the ring on the opposite side from moving. Movement of the rings causes the packer to compress axially and expand radially. Typically, a support ring is used to limit the axial deflection of the packer. In some applications, the support ring is prone to shearing, resulting in packer failure.
The packing method is a common method for treating the damage of oil layer casing of oil production well. The packing method does not block the channel of stratum fluid flowing into the shaft caused by the damage of the oil layer casing, but uses the oil production pipe column with the packing function to pack off the damaged well section of the oil layer casing from the oil layer, and the stratum fluid flowing into the shaft from the damaged part of the oil layer casing is not mixed with the produced fluid of the oil layer, and is prevented from flowing backwards to enter the oil layer. The packing method has the following major problems:
1. during oil production, the oil production string needs to be set again after creeping deblocking the packer, and creeping deblocking and setting again are repeated for many times; meanwhile, during the period from the peristaltic deblocking to the re-setting, formation liquid flows backwards into an oil layer.
2. The oil production string is bent due to the high setting load of part of the oil production string, so that the string and the rod string are worn eccentrically, and the service life of the string and the rod string is shortened; part of the production string is low in setting load, which causes untight setting or even unset setting.
3. The pump detection period is not matched with the packing period, one of the pump detection period and the packing period is invalid, and the oil production string and the rod string are required to be unpacked, so that the pump detection times are increased, the pump detection period is shortened, and the times and time for the stratum liquid to flow back to an oil layer are increased.
4. The sand card and the air lock are common faults of the oil well pump, and can cause the oil production well to stop pumping and check the pump, so that the oil production time is reduced, and the oil production cost is increased.
5. The packer has long service life, large deblocking difficulty and even no deblocking, and the packer needs to be ground and drilled, so that the grinding and drilling time is long and the cost is high.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides an anchoring overflowing device, which provides an anchoring overflowing device according to the following technical scheme, comprising a packer, a righting mechanism, a continuous oil pipe connecting sealing joint, an oil outlet, a pipeline body passing through, a deblocking sleeve, a deblocking mechanism, slips, a rubber barrel, a locking mechanism, a double-hydraulic-cylinder mechanism, a tool connecting mechanism and a snap ring; the packer is arranged at the bottom of the anchoring overflowing device, a pipeline body penetrating through is coaxially arranged above the packer, an oil outlet is formed in the side end, through which the pipeline body penetrates, and used for providing an oil outlet channel, the upper portion of the anchoring overflowing device is in threaded connection with a continuous oil pipe to be connected with a sealing joint, the unpacking sleeve is locked or unpacked through an unpacking mechanism, and the clamp ring extrudes the rubber barrel to enable the rubber barrel to be compressed and expanded; and the unlocking and locking mechanism is driven by the double-hydraulic-cylinder mechanism to realize the axial movement of the packer.
Further, a centering mechanism is arranged on the lower portion of the packer.
Furthermore, a limit cap is arranged for limiting the packer, a pipe sleeve valve core and a sealing medium injection valve are arranged at the lower part of the limit cap, and a sealing cabin is arranged at the upper part of the packer; the limiting cap is sleeved on the periphery of the lower portion of the packer, a sealing medium injection valve is arranged on the limiting cap, and sealing medium is injected into the packer through the sealing medium injection valve to seal the packer.
Drawings
FIG. 1 is a front half-sectional view of the anchoring overflowing device of the present invention;
FIG. 2 is a schematic structural view of the anchoring overcurrent device of the present invention;
fig. 3 is a sectional view of a centralizer mechanism and a packer section of another embodiment of the anchoring flow device of the present invention.
Detailed Description
An anchoring overflowing device comprises a packer 24, a centering mechanism 25, a coiled tubing connecting sealing joint 21, an oil outlet 22, a pipeline body penetrating 23, a deblocking sleeve B1, a deblocking mechanism B2, a slip B3, a rubber barrel B4, a locking mechanism B5, a double-cylinder mechanism B6, a tool connecting mechanism B7 and a clamping ring B8; the packer is arranged at the bottom of the anchoring overflowing device, a pipeline body penetrating 23 is coaxially arranged above the packer, an oil outlet hole is formed in the side end of the pipeline body penetrating 23 and used for providing an oil outlet channel, a continuous oil pipe connecting sealing joint 21 is in threaded connection with the upper portion of the anchoring overflowing device and used for penetrating through cables and hydraulic control pipelines led out of the continuous oil pipe, for example, 2 hydraulic control pipelines and 3 cable cores penetrate through, penetrating holes are formed in the pipeline body penetrating 23, the number of the penetrating holes is preferably 6, the anchoring mode of the anchoring overflowing device is hydraulic anchoring, and the setting pressure achieved by the packer is 20 MPa.
The unsealing sleeve is locked or unsealed through the unsealing mechanism, the slip is arranged at the middle section of the packer, and a distance is reserved between the slip and the middle section of the packer. When in use, a small-diameter coiled tubing can be put into the existing tubing, and the annular space flow rate of flowing gas is improved by the speed tubing string by forming a section area with a reduced diameter in the production tubing, so that water can be taken out of a well to generate gas continuously; the utility model can well suspend the coiled tubing and pack the predetermined tubing or casing; and a rubber barrel is arranged on the lower part of the slip and positioned outside the packer, and the clamping ring extrudes the rubber barrel to enable the rubber barrel to be compressed and expanded, so that the setting is completed. The inner side of the lower part of the rubber barrel is provided with mounting grooves at intervals along the axial direction, a compression-shaped locking mechanism is mounted in the mounting grooves and used for realizing the locking of the packer and the double-hydraulic-cylinder mechanism, and when the locking mechanism is unlocked, the axial movement of the packer can be realized through the driving of the double-hydraulic-cylinder mechanism. The external diameter of the packer is 70mm, and the diameter of the middle pipeline is 37 mm.
In a preferred embodiment, the lower portion of the packer may be provided with a centralizer 25 to allow the anchoring flow device to provide good centralization during movement. In the embodiment, the anchoring overflowing device can also be provided with a limiting cap 1 for limiting a packer 24, the lower part of the limiting cap 1 is provided with a pipe sleeve valve core 6 and a sealing medium injection valve 5, and the upper part of the packer 24 is provided with a sealing cabin 3; the limiting cap 1 is sleeved on the periphery of the lower portion of the packer 24, a sealing medium injection valve 5 is arranged on the limiting cap 1, and sealing medium is injected into the packer through the sealing medium injection valve to seal the packer.
In another embodiment, the slips can be arranged in a slip seat, a slip seat mounting groove is circumferentially arranged on the outer side of the packer, the slip seat comprises two semi-ring seats, two ends of the two semi-ring seats are fixedly mounted together and are positioned in the slip seat mounting groove, tooth tips are distributed on the outer side of the slips, and matched tooth grooves are distributed in the slip seat and are used for being meshed with the tooth tips.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. An anchoring overcurrent device, characterized in that: the packer comprises a packer, a centering mechanism, a coiled tubing connecting sealing joint, an oil outlet, a pipeline body penetrating, a deblocking sleeve, a deblocking mechanism, slips, a rubber barrel, a locking mechanism, a double-hydraulic-cylinder mechanism, a tool connecting mechanism and a clamping ring; the packer is arranged at the bottom of the anchoring overflowing device, a pipeline body penetrating through is coaxially arranged above the packer, an oil outlet is formed in the side end, through which the pipeline body penetrates, and used for providing an oil outlet channel, the upper portion of the anchoring overflowing device is in threaded connection with a continuous oil pipe to be connected with a sealing joint, the unpacking sleeve is locked or unpacked through an unpacking mechanism, and the clamp ring extrudes the rubber barrel to enable the rubber barrel to be compressed and expanded; and the unlocking and locking mechanism is driven by the double-hydraulic-cylinder mechanism to realize the axial movement of the packer.
2. An anchored flow device as defined in claim 1, wherein: and a centralizing mechanism is arranged at the lower part of the packer.
3. An anchored flow device as defined in claim 2, wherein: the packer is also provided with a limit cap for limiting the packer, the lower part of the limit cap is provided with a pipe sleeve valve core and a sealing medium injection valve, and the upper part of the packer is provided with a sealed cabin; the limiting cap is sleeved on the periphery of the lower portion of the packer, a sealing medium injection valve is arranged on the limiting cap, and sealing medium is injected into the packer through the sealing medium injection valve to seal the packer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921511866.3U CN211648095U (en) | 2019-09-11 | 2019-09-11 | Anchoring overcurrent device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921511866.3U CN211648095U (en) | 2019-09-11 | 2019-09-11 | Anchoring overcurrent device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211648095U true CN211648095U (en) | 2020-10-09 |
Family
ID=72681128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921511866.3U Active CN211648095U (en) | 2019-09-11 | 2019-09-11 | Anchoring overcurrent device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211648095U (en) |
-
2019
- 2019-09-11 CN CN201921511866.3U patent/CN211648095U/en active Active
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