CN205977185U - Through -hole geology polymer packing sand control is tubular column in pit - Google Patents
Through -hole geology polymer packing sand control is tubular column in pit Download PDFInfo
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- CN205977185U CN205977185U CN201620955936.4U CN201620955936U CN205977185U CN 205977185 U CN205977185 U CN 205977185U CN 201620955936 U CN201620955936 U CN 201620955936U CN 205977185 U CN205977185 U CN 205977185U
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- pipe
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- tubing string
- packing tool
- sand
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Abstract
The utility model provides a through -hole geology polymer packing sand control is tubular column in pit, including reverse packing tool, outer tube column, interior tubular column, outer tube column, interior tubular column are connected simultaneously to reverse packing tool lower extreme, annular space in the tubular column outside and the formation between the two including the outer tube column cover, the outer tube column outside and the outer annular space of the inboard formation of sleeve pipe, the stratum of interior tubular column, outer tube column, sleeve pipe, cover outside of tubes is the connected state. Outer tube column includes nipple joint, screen pipe, sand sediment pipe that top -down connected gradually, the nipple joint upper end is connected in the reverse packing tool lower extreme outside. The plug is connected to the sand sediment pipe bottom. The utility model discloses realize geology polymer stratum squeezing, annular space circulation and concrete purpose that foams, have characteristics such as the discharge capacity is big, pressure low, easily give up.
Description
Technical field
This utility model is related to sand control down-hole string in oil exploitation, and especially a kind of through hole geo-polymer filling is prevented
Sand drain lower tubular column.
Background technology
In insulation material, waste gas adsorbing material, sewage filtering material, the field such as energy absorbing material obtains geo-polymer
It is widely applied.The comprcssive strength of this geo-polymer up to 9.0Mpa, apparent porosity up to 70%, bulk density in 0.40g/
Between cm3～1.0g/cm3, it is resistant to more than 800 DEG C of high temperature.Fully meet the technical requirements of oil-water well sand control, and relatively more suitable
Close the objective economic needs of oil mining under low oil price.How geo-polymer efficient application in oil-water well sand control, and realize
Geo-polymer injects, foams, consolidating, the technological process of sand block is most important.
Packing tool has been classified as national standard, in national standard indicate packing tool include " positive packing tool " and
" reverse packing tool ".
At present, underground sand-prevention tubing string mainly adopts positive filling method (being injected), this technological process, oil from oil pipe
Set annular space will ensure positive confinement and keep compared with high sealing pressure guarantee tubing string construction safety, because its reservoir distance piece is empty
Between limited, when geology polymer foaming produce instant impact, will to sealing tubing string pressure, be easily destroyed tubing string,
Thus being unfavorable for the construction safety of down-hole string, and affect sand controlling result.
Through retrieval, find to carry out down-hole string or the technological gap of filling and sand control using polymer.
Utility model content
The purpose of this utility model is to provide a kind of through hole geo-polymer filling anti-sand down-hole string, realizes geology polymerization
The purpose of the squeezing of thing stratum, annular circulation and foaming consolidation, the features such as having that discharge capacity is big, pressure is low, easily give up.
The purpose of this utility model can be achieved by the following technical measures：
This through hole geo-polymer filling anti-sand down-hole string includes reverse packing tool, outer tubing string, interior tubing string, described anti-
It is simultaneously connected with outer tubing string, interior tubing string to packing tool lower end, described outer tube column sleeve is outside interior tubing string and in formation between the two
Annular space, forms outer annular space with inside sleeve pipe outside described outer tubing string, the stratum outside said inner tube post, outer tubing string, sleeve pipe, sleeve pipe is
Connected state.
The purpose of this utility model also can be achieved by the following technical measures：
Pipe nipple that described outer tubing string includes being sequentially connected from top to bottom, screen casing, sand sediment pipe, described pipe nipple upper end is connected to instead
To packing tool lower end outside.
Described sand sediment pipe bottom connects plug, and described screen casing is at least provided with two, and is connected with connecting tube.
Said inner tube post is washing pipe, and described washing pipe upper end is connected to the lower end inside of reverse packing tool, described washing pipe
Lower end is inserted directly in sand sediment pipe, and washing pipe lower end is connected with interior annular space by sand sediment pipe.
Described reverse packing tool upper end connected pipes.
This utility model has the advantages that：
The down-hole string that this utility model is exactly the features such as easily foam according to geo-polymer, consolidate fast and develops, this pipe
Post realizes the squeezing of geo-polymer stratum, annular circulation and foaming consolidation using the technique of reverse filling, has that discharge capacity is big, pressure
Power is low, the features such as easily give up, be relatively suitable for the application of geo-polymer filling anti-sand.
Brief description
Fig. 1 is the structural representation of this utility model embodiment.
In figure：1- oil pipe；2- sleeve pipe；The reverse packing tool of 3-；4- pipe nipple；5- washing pipe；6- screen casing；7- geo-polymer；
8- connecting tube；9- stratum；10- sand sediment pipe；11- plug.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, cooperation brief description is as follows, but accompanying drawing only provides ginseng
Examine and purposes of discussion, be not used for this utility model is any limitation as.
According to Fig. 1, this through hole geo-polymer filling anti-sand down-hole string includes reverse packing tool 3, outer tubing string, inner tube
Post, described reverse packing tool lower end is simultaneously connected with outer tubing string, interior tubing string, and described outer tube column sleeve is outside interior tubing string and both it
Between formed in annular space, form outer annular space, said inner tube post, outer tubing string, sleeve pipe 2, sleeve pipe with sleeve pipe 2 inner side outside described outer tubing string
Outer stratum 9 is connected state.Pipe nipple 4 that described outer tubing string includes being sequentially connected from top to bottom, screen casing 6, sand sediment pipe 10, described
Pipe nipple upper end is connected to reverse packing tool lower end outside.Described sand sediment pipe bottom connects plug 11, described screen casing at least provided with
Two, and connected with connecting tube 8.Said inner tube post is washing pipe 5, and described washing pipe upper end is connected in the lower end of reverse packing tool
Side, the lower end of described washing pipe is inserted directly in sand sediment pipe, and washing pipe lower end is connected with interior annular space by sand sediment pipe.Described reverse filling
Instrument upper end connected pipes 1.
Oil pipe 1, reverse packing tool 3, pipe nipple 4, washing pipe 5, screen casing 6, connecting tube 8, sand sediment pipe 10, the equal silk of plug 11 part
Button connects, and is lowered in sleeve pipe 2 from well head by oil pipe 1.Oil pipe 1 and the top screwed connection of reverse packing tool 3, reversely fill
Fill out instrument 3 lower outer to be connected with pipe nipple 4, bottom the inner is connected (formed inner tube post) with washing pipe 5 screw thread, pipe nipple 4, screen casing 6, company
The order all screwed connections from top to bottom of adapter 8, sand sediment pipe 10, plug 11 form outer tubing string.Screen casing 6 bottom corresponds to stratum 9 position,
Enter to complete under tubing string.
Recycled back technique is adopted, that is, geo-polymer 7 and the mixed liquor of load fluid composition are by oil pipe 1, sleeve pipe 2 during construction
Formed annular space enter, by well head close oil pipe 1 inner chamber, then extrude mixed liquor enter stratum 9 realize near wellbore zone squeeze
Pressure filling, realizes depth sand control；Oil pipe 1 inner chamber is opened by well head, then extrudes mixed liquor and pass through 6 geo-polymers 7 of screen casing
Separate with load fluid, geo-polymer 7 stays the annular space that outer tubing string is formed with sleeve pipe 2, and load fluid is then entered by screen casing 6
Enter washing pipe 5, reverse packing tool 3 inner chamber, and ground is discharged to by oil pipe 1 inner chamber, form recycled back filling.Work as circulating pressure
When reaching predetermined value, stop adding mixed liquor, back-off or suppress reverse packing tool 3, make thereon at reverse packing tool 3
Lower part disengages, and proposes washing pipe 5 to staying well casing post upper end, abundant anti-flushing well to import and export liquid consistent when, go out top
Tubing string, closing well 24 hours, treat that geo-polymer 7 foams, consolidates fully, that is, complete to construct.Geo-polymer 7 foams, consolidates ginseng
Several require to be allocated according to experimental study situation and hole condition.When staying well casing post to need, the reverse packing tool of tubing string 3 in well
On leave salvaging button, can carry out to buckle fisher, rotate and carry and can complete on tubing string 10-15 circle.Reversely packing tool 3 is oil field
Conventional prior art, is directly connected to use, therefore need not repeat its concrete structure.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, its
He uses the equivalence changes of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. a kind of through hole geo-polymer filling anti-sand down-hole string it is characterised in that include reverse packing tool, outer tubing string,
Interior tubing string, described reverse packing tool lower end is simultaneously connected with outer tubing string, interior tubing string, and described outer tube column sleeve is outside interior tubing string and two
Annular space in being formed between person, forms outer annular space, said inner tube post, outer tubing string, sleeve pipe, set with inside sleeve pipe outside described outer tubing string
Stratum outside pipe is connected state.
2. a kind of through hole geo-polymer filling anti-sand down-hole string according to claim 1 is it is characterised in that described outer
Pipe nipple that tubing string includes being sequentially connected from top to bottom, screen casing, sand sediment pipe, described pipe nipple upper end is connected to reverse packing tool lower end
Outside.
3. a kind of through hole geo-polymer filling anti-sand down-hole string according to claim 2 is it is characterised in that described sink
Sandpipe bottom connects plug, and described screen casing is at least provided with two, and is connected with connecting tube.
4. a kind of through hole geo-polymer filling anti-sand down-hole string according to claim 2 is it is characterised in that described interior
Tubing string is washing pipe, and described washing pipe upper end is connected to the lower end inside of reverse packing tool, and it is heavy that the lower end of described washing pipe is inserted directly into
In sandpipe, washing pipe lower end is connected with interior annular space by sand sediment pipe.
5. a kind of through hole geo-polymer filling anti-sand down-hole string according to claim 1 is it is characterised in that described
Reversely packing tool upper end connected pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955936.4U CN205977185U (en) | 2016-08-26 | 2016-08-26 | Through -hole geology polymer packing sand control is tubular column in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955936.4U CN205977185U (en) | 2016-08-26 | 2016-08-26 | Through -hole geology polymer packing sand control is tubular column in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977185U true CN205977185U (en) | 2017-02-22 |
Family
ID=58036895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620955936.4U Active CN205977185U (en) | 2016-08-26 | 2016-08-26 | Through -hole geology polymer packing sand control is tubular column in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780890A (en) * | 2016-08-26 | 2018-03-09 | 中国石油化工股份有限公司 | Through hole geo-polymer filling anti-sand down-hole string and reverse placement method |
| CN115370326A (en) * | 2021-05-19 | 2022-11-22 | 中国石油天然气股份有限公司 | Expanded particles, completion pipe string filled with expanded particles and method for filling completion with expanded particles |
-
2016
- 2016-08-26 CN CN201620955936.4U patent/CN205977185U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780890A (en) * | 2016-08-26 | 2018-03-09 | 中国石油化工股份有限公司 | Through hole geo-polymer filling anti-sand down-hole string and reverse placement method |
| CN107780890B (en) * | 2016-08-26 | 2024-03-22 | 中国石油化工股份有限公司 | Through hole geopolymer filling sand control downhole tubular column and reverse filling method |
| CN115370326A (en) * | 2021-05-19 | 2022-11-22 | 中国石油天然气股份有限公司 | Expanded particles, completion pipe string filled with expanded particles and method for filling completion with expanded particles |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |