CN208236394U - A kind of sand control flow string - Google Patents
A kind of sand control flow string Download PDFInfo
- Publication number
- CN208236394U CN208236394U CN201820603593.4U CN201820603593U CN208236394U CN 208236394 U CN208236394 U CN 208236394U CN 201820603593 U CN201820603593 U CN 201820603593U CN 208236394 U CN208236394 U CN 208236394U
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- Prior art keywords
- sand
- pump barrel
- pipe
- end connects
- pump
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Abstract
The utility model relates to well recovery technical field of operation, in particular to a kind of sand control flow string.The sand-preventing pump of the device includes outer pump barrel and interior pump barrel, outer pump barrel is arranged on the outside of interior pump barrel, interior pump barrel lower end connects central tube, outer pump barrel upper end connected pipes, outer pump barrel lower end connects screen pipe, and filter hole, the centrally disposed pipe outside of screen pipe are uniformly arranged on screen pipe side wall, screen pipe lower end connects sand sediment pipe, and sand sediment pipe bottom end connects silk plug.It is strong that the utility model realizes sand control sediment outflow ability, by the way that extra shale fine silt to be settled down in sand sediment pipe, effectively extend the oil well pump pump detection period of easy sand well, holddown phenomenon caused by preventing oil-well strata shale fine silt sand production rate big, operating cost is reduced, oil well production efficiency is improved.
Description
Technical field:
The utility model relates to well recovery technical field of operation, in particular to a kind of sand control flow string.
Background technique:
In well recovery operation, frequently encounter since oil-well strata shakes out seriously, reservoir sand enters pumping with stratum liquid stream
The annular space of pump barrel and plunger, blocks oil pump plunger piston in oil pump pump barrel, causes holddown, shortens oil well pump detection period, seriously affects
The problem of oil well production, such issues that currently encounter, are produced using sand-preventing pump, however existing sand-proof oil-well pump sediment outflow
Ability is limited, and oil-well strata shale fine silt sand production rate is big, and sand-preventing pump working environment is caused to deteriorate, and is easy holddown, causes oil well
It stops production, oil well pump pump detection period shortens.
Utility model content:
The technical problem to be solved by the present invention is to provide a kind of sand control flow strings, and the arrangement achieves sand controls
Sediment outflow ability is strong, by the way that extra shale fine silt to be settled down in sand sediment pipe, effectively extends the oil well pump inspection of easy sand well
The period is pumped, holddown phenomenon caused by preventing oil-well strata shale fine silt sand production rate big reduces operating cost, improves oil well production
Efficiency.It is limited to overcome existing sand-proof oil-well pump sediment outflow ability, oil-well strata shale fine silt sand production rate easily causes greatly holddown existing
As causing the deficiency that oil well stops production and oil well pump pump detection period shortens.
Technical solution adopted in the utility model is: a kind of sand control flow string, including sand-preventing pump；Sand-preventing pump packet
Outer pump barrel and interior pump barrel are included, outer pump barrel is arranged on the outside of interior pump barrel, and interior pump barrel lower end connects central tube, outer pump barrel upper end connection oil
Pipe, outer pump barrel lower end connect screen pipe, and filter hole, the centrally disposed pipe outside of screen pipe, mistake are uniformly arranged on screen pipe side wall
Chimney filter lower end connects sand sediment pipe, and sand sediment pipe bottom end connects silk plug.
The beneficial effects of the utility model are: to realize sand control sediment outflow ability strong for the utility model, by by extra mud
Matter fine silt is settled down in sand sediment pipe, is effectively extended the oil well pump pump detection period of easy sand well, is prevented oil-well strata shale thin
Holddown phenomenon caused by flour sand sand production rate is big reduces operating cost, improves oil well production efficiency.
Detailed description of the invention:
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment:
As shown in Figure 1, a kind of sand control flow string, including sand-preventing pump 1；Sand-preventing pump 1 includes outer pump barrel 6 and interior pump barrel
7, in interior 7 outside of pump barrel, interior 7 lower end of pump barrel connects central tube 2, outer 6 upper end connected pipes of pump barrel, outer pump barrel 6 for the outer setting of pump barrel 6
Lower end connects screen pipe 3, and filter hole, centrally disposed 2 outside of pipe of screen pipe 3, screen pipe 3 are uniformly arranged on 3 side wall of screen pipe
Lower end connects sand sediment pipe 4, and 4 bottom end of sand sediment pipe connects silk plug 5.
Oil reservoir produces liquid from screen pipe 3 into flow string in oil recovery process, and oil reservoir is produced the big granule in liquid and hindered by screen pipe 3
For gear except screen pipe 3, shale fine silt follows oil reservoir production liquid to enter 3 inner space of screen pipe by screen pipe 3.Sand-preventing pump 1
When inner piston moves upwards, the oil reservoir in screen pipe 3 produces liquid and is inhaled into 1 pump barrel of sand-preventing pump from 2 lower end of central tube, with sand control
1 piston upwards are pumped, are evacuated to ground into oil pipe.When shale fine silt content is excessive in the sandy crude that oil reservoir produces in liquid
When, since the liquid prop-carrying capacity moved upwards in oil pipe is insufficient, in oil pipe in fluid column uphill process, fine silt is made in sedimentation
With whereabouts, after being stopped by 1 piston of sand-preventing pump, shale fine silt falls into the annular space between outer pump barrel 6 and interior pump barrel 7, in
Annular space between heart pipe 2 and screen pipe 3, space in final settlement to sand sediment pipe 4, to realize the production time for extending oil well.
It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being
It is limited to technical solution described in the utility model embodiment, those skilled in the art should understand that, it still can be with
It modifies to the utility model or equivalent replacement, to reach identical technical effect；Needs are used as long as meeting, all in this reality
Within novel protection scope.
Claims (1)
1. a kind of sand control flow string, including sand-preventing pump (1)；It is characterized by: sand-preventing pump (1) include outer pump barrel (6) and
Interior pump barrel (7), outer pump barrel (6) setting is on the outside of interior pump barrel (7), and interior pump barrel (7) lower end connects central tube (2), on outer pump barrel (6)
Connected pipes are held, outer pump barrel (6) lower end connects screen pipe (3), is uniformly arranged filter hole, screen pipe (3) on screen pipe (3) side wall
On the outside of centrally disposed pipe (2), screen pipe (3) lower end connects sand sediment pipe (4), and sand sediment pipe (4) bottom end connects silk plug (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820603593.4U CN208236394U (en) | 2018-04-26 | 2018-04-26 | A kind of sand control flow string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820603593.4U CN208236394U (en) | 2018-04-26 | 2018-04-26 | A kind of sand control flow string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236394U true CN208236394U (en) | 2018-12-14 |
Family
ID=64584827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820603593.4U Expired - Fee Related CN208236394U (en) | 2018-04-26 | 2018-04-26 | A kind of sand control flow string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208236394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607323A (en) * | 2020-12-04 | 2022-06-10 | 中国石油天然气股份有限公司 | Secondary sand prevention pipe column and using method thereof |
-
2018
- 2018-04-26 CN CN201820603593.4U patent/CN208236394U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607323A (en) * | 2020-12-04 | 2022-06-10 | 中国石油天然气股份有限公司 | Secondary sand prevention pipe column and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20190426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |