CN202064912U - Uniformly-rotating blockage removing tool for horizontal well - Google Patents
Uniformly-rotating blockage removing tool for horizontal well Download PDFInfo
- Publication number
- CN202064912U CN202064912U CN 201120095614 CN201120095614U CN202064912U CN 202064912 U CN202064912 U CN 202064912U CN 201120095614 CN201120095614 CN 201120095614 CN 201120095614 U CN201120095614 U CN 201120095614U CN 202064912 U CN202064912 U CN 202064912U
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- uniformly
- rotating
- pipe
- horizontal well
- removing tool
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Abstract
A uniformly-rotating blockage removing tool for a horizontal well comprises an upper connector, a connecting body, a punched outer pipe, a bearing, a slit inner pipe and a lower connector, and is characterized in that the upper portion of the connecting body is connected with the upper connector, the lower portion of the connecting body is connected with the punched outer pipe and the lower connector sequentially, and the bearing and the inner pipe are mounted in the punched outer pipe sequentially. The uniformly-rotating blockage removing tool has the advantages that the uniformly-rotating blockage removing tool removes blockage uniformly, blockage of more than one point of a sand prevention layer is uniformly removed, and the uniformly-rotating blockage removing tool is thorough in blockage removal effect, low in impact force and simple and convenient in operation, protects pipe columns, has low requirements for ground pumping equipment and the like. The uniformly-rotating blockage removing tool can be widely applied to the blockage removing technology of oil exploitation horizontal wells.
Description
Technical field
The utility model relates to the underground work instrument in the oil exploitation process, particularly a kind of horizontal well Rotating with Uniform de-plugging instrument.
Background technology
In the oilfield exploitation procedure, because the mobile of crude oil extraction fluid causes that clay swell is migrated in the stratum, cause the oil reservoir seepage channel to reduce or the hole obstruction, cause recovery well output to descend, development effectiveness is bad.At present the de-plugging instrument that uses is by rotary nozzle, damper, centralizer, formations such as strainer, for the de-plugging work of recovery well contributes, but it exists following shortcoming or deficiency simultaneously: 1. can not carry out even de-plugging at horizontal segment, directly restrict the efficient exploitation of horizontal well; 2. can only the single-point de-plugging, the inhomogeneous and single-point de-plugging of the plugging removal effect that causes because of the single-point de-plugging easily causes the infringement of sand block layer; 3. the single-point de-plugging is not thorough, and impact force is big, fragile tubing string; 4. sand screen or main force's production fluid tubing string are long in the horizontal well, and it is low to use single-point de-plugging efficient, and working fluid is long to the stratum soak time simultaneously, easily causes shortcomings such as reservoir pollution.
Summary of the invention
The purpose of this utility model provides a kind of horizontal well Rotating with Uniform de-plugging instrument, adopt the combining structure of pipe, bearing and punching outer tube in the slot, both prolong the oil well production cycle, increased recovery ratio, the shortcoming or the deficiency that overcome effectively again or avoid existing in the prior art.
Horizontal well Rotating with Uniform de-plugging instrument described in the utility model, comprise pipe, lower contact in top connection, connector, punching outer tube, bearing, the slot, it is characterized in that described connector top is connected with top connection, the bottom is connected with lower contact in turn with the punching outer tube, in the punching outer tube bearing and interior pipe is installed in turn.
Wherein, described bearing is installed between punching outer tube and the interior pipe of slot.Described bearing is installed on the upper and lower end parts between the pipe in punching outer tube and the slot.The slot of pipe becomes 10 °～25 ° angle in the described slot with axis.The upper end of described bearing is supported mutually with the connector lower end, and the lower end is supported mutually with the lower contact upper end.
The utility model has following advantage compared with prior art:
1, utilizes a plurality of jet points to carry out de-plugging and improved uniformity, thereby make the formation fluid can more uniform output, reach the effect that improves recovery ratio and prolong the sand retention pipe life-span the de-plugging of sand block layer;
2, the function that has rotary plug-removing adopts the fluid power of different directions to drive interior slot pipe realization rotation, thereby reaches the purpose of rotary plug-removing;
3, can carry out the even de-plugging of any incessantly to anti-layer of sand, de-plugging is more thorough, and speed is fast;
4, easy and simple to handle, send equipment less demanding to surface pump, cost is low;
5, prolong the oil well production cycle, increase recovery ratio.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model.
The specific embodiment
Consult Fig. 1, a kind of horizontal well Rotating with Uniform de-plugging instrument comprises pipe 4, lower contact 6 in top connection 1, connector 2, punching outer tube 5, bearing 3, the slot.Connector 2 tops are connected with top connection 1, and the bottom is connected along 6 times with lower contact with punching outer tube 5, and pipe 4 in bearing 3 and the slot is installed in the punching outer tube 5 in turn.
Bearing 3 is installed in punching outer tube 5 and the slot and manages between 4.Bearing 3 is installed on the upper and lower end parts between the pipe 4 in punching outer tube 5 and the slot.The slot of pipe 4 becomes 10 °～25 ° angle in the slot with axis, is expressed as 20 ° among the figure.The upper end of bearing 3 is supported mutually with connector 2 lower ends, and the lower end is supported mutually with lower contact 6 upper ends.
During operation; the liquid that ground is pumped into is delivered in the slot in the pipe 4 by oil-line pump; and the slot of pipe 4 becomes 20 ° angle in the slot with axis; therefore will produce a kind of power that makes the tubing string rotation; therefore pipe 4 is rotated motion around outer jointing jacket in the slot under the acting in conjunction of bearing 3 and waterpower, thereby reach sand screen is carried out even de-plugging purpose in the working range.
Claims (5)
1. horizontal well Rotating with Uniform de-plugging instrument, comprise pipe, lower contact in top connection, connector, punching outer tube, bearing, the slot, it is characterized in that described connector top is connected with top connection, the bottom is connected with lower contact in turn with the punching outer tube, in the punching outer tube bearing and interior pipe is installed in turn.
2. horizontal well Rotating with Uniform de-plugging instrument according to claim 1 is characterized in that described bearing is installed between punching outer tube and the interior pipe of slot.
3. horizontal well Rotating with Uniform de-plugging instrument according to claim 2 is characterized in that described bearing is installed on the upper and lower end parts between the pipe in punching outer tube and the slot.
4. horizontal well Rotating with Uniform de-plugging instrument according to claim 2 is characterized in that the slot of pipe in the described slot becomes 10 °～25 ° angle with axis.
5. according to claim 1 or 2 or 3 described horizontal well Rotating with Uniform de-plugging instruments, it is characterized in that the upper end of described bearing supports mutually with the connector lower end, lower end and lower contact upper end are supported mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120095614 CN202064912U (en) | 2011-04-02 | 2011-04-02 | Uniformly-rotating blockage removing tool for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120095614 CN202064912U (en) | 2011-04-02 | 2011-04-02 | Uniformly-rotating blockage removing tool for horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064912U true CN202064912U (en) | 2011-12-07 |
Family
ID=45058780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120095614 Expired - Fee Related CN202064912U (en) | 2011-04-02 | 2011-04-02 | Uniformly-rotating blockage removing tool for horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064912U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089577A (en) * | 2014-05-09 | 2015-11-25 | 中国石油化工股份有限公司 | Easy-to-salvage sand prevention pipe column |
| CN110965953A (en) * | 2019-11-25 | 2020-04-07 | 中国石油大学(华东) | Hydraulic pulse fluctuation generating device and using method |
| CN115450589A (en) * | 2022-08-04 | 2022-12-09 | 广州海洋地质调查局 | Variable-precision rotary unblocking sieve tube and method |
| CN116066032A (en) * | 2023-03-07 | 2023-05-05 | 东营百华石油技术开发有限公司 | Circular seam type sand filtering pipe |
-
2011
- 2011-04-02 CN CN 201120095614 patent/CN202064912U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089577A (en) * | 2014-05-09 | 2015-11-25 | 中国石油化工股份有限公司 | Easy-to-salvage sand prevention pipe column |
| CN105089577B (en) * | 2014-05-09 | 2019-10-25 | 中国石油化工股份有限公司 | Easy fishing sand-proof tubing string |
| CN110965953A (en) * | 2019-11-25 | 2020-04-07 | 中国石油大学(华东) | Hydraulic pulse fluctuation generating device and using method |
| CN110965953B (en) * | 2019-11-25 | 2022-05-17 | 中国石油大学(华东) | Hydraulic pulse fluctuation generating device and using method |
| CN115450589A (en) * | 2022-08-04 | 2022-12-09 | 广州海洋地质调查局 | Variable-precision rotary unblocking sieve tube and method |
| CN115450589B (en) * | 2022-08-04 | 2024-04-26 | 广州海洋地质调查局 | Variable-precision rotary blocking removal sieve tube and method |
| CN116066032A (en) * | 2023-03-07 | 2023-05-05 | 东营百华石油技术开发有限公司 | Circular seam type sand filtering pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20120402 |