CN114458239B - High-expansion umbrella-shaped supporting tool for layer selection water shutoff and use method thereof - Google Patents
High-expansion umbrella-shaped supporting tool for layer selection water shutoff and use method thereof Download PDFInfo
- Publication number
- CN114458239B CN114458239B CN202111116140.1A CN202111116140A CN114458239B CN 114458239 B CN114458239 B CN 114458239B CN 202111116140 A CN202111116140 A CN 202111116140A CN 114458239 B CN114458239 B CN 114458239B
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- bracing piece
- piece
- umbrella
- supporting tool
- center tube
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 33
- 238000007906 compression Methods 0.000 claims description 33
- 230000000694 effects Effects 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 9
- 230000009699 differential effect Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect 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
- 239000003208 petroleum Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/136—Baskets, e.g. of umbrella type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a high-expansion umbrella-shaped supporting tool for water shutoff in a layer selection mode and a using method of the high-expansion umbrella-shaped supporting tool. After the supporting tool passes through the oil pipe, the inner diameter and the outer diameter of the sleeve pipe are enlarged by more than 2.5-3.5 times, so that the interval packing and layer selecting water shutoff functions of the producing layer are realized; the supporting tool is not limited by stratum and shaft conditions, and has wide application range.
Description
Technical Field
The invention relates to the technical field of petroleum and natural gas exploitation, in particular to a high-expansion umbrella-shaped supporting tool for layer selection water shutoff and a use method thereof.
Background
In the petroleum weather development production well, when the production well is put into a well completion pipe column at the later production stage, partial water production layers have large water production quantity, the normal production of oil gas is seriously affected, and the oil gas yield can be greatly reduced, so that the serious water production layers are required to be plugged, the water content of the oil gas is reduced, the back pressure of a stratum is reduced, and the oil gas well yield is improved.
In the existing well production of partial petroleum and natural gas, a combined casing with a small upper part and a large lower part is adopted for well cementation (such as a 7 ' casing at the upper part and a 9-5 '/8 casing at the tail part), the later water plugging problem is not considered in the well completion stage, an oil pipe (such as a 2-7 '/8 oil pipe) is adopted, a sliding sleeve and a packer pipe column are not used for well completion, the later high-yield high-water content and high-water content are developed to seriously influence the oil and gas yield, and the water plugging operation of a selected layer is required to be implemented. The method has the advantages of high cost, long operation period, shut-in and shut-down of the well, and pollution of the production layer during well killing operation. The water is blocked by the fixed pipe column, and after the water blocking pipe column needs to pass through the oil pipe, the inner diameter of the large sleeve at the tail part is expanded by 3.5 times and more to realize interval sealing.
In the prior art, under the condition that a well completion pipe string is not lifted out, after the cable or the continuous oil pipe carries the expansion packer or the bridge plug to pass through the well completion oil pipe, after the expansion packer or the bridge plug is expanded to pack a production zone in a hydraulic pressure mode, a drilling pressure adding mode and the like, a plugging agent is pumped, and water plugging is implemented by selecting the zone, but after the expansion packer or the bridge plug passes through the well completion pipe string in the prior art, the maximum effective packing expansion rate can only reach 2.5-3 times.
Disclosure of Invention
The invention overcomes the defects in the prior art, the maximum effective expansion rate of the packing can only reach 2.5-3 times after the expansion packer and the bridge plug pass through the well completion pipe column, and the maximum effective expansion rate of the packing is lower, and the invention provides a high-expansion umbrella-shaped supporting tool for water shutoff of a selected layer and a use method thereof, wherein the supporting tool expands the inner diameter and the outer diameter of the casing by 2.5 times, 3.5 times and more after passing through an oil pipe, so as to realize the functions of interval packing of a producing layer and water shutoff of the selected layer; the supporting tool is not limited by stratum and shaft conditions, and has wide application range; the supporting tool can be completely recovered and lifted out, and the integrity of a shaft and subsequent operation are not affected.
The aim of the invention is achieved by the following technical scheme.
The utility model provides a select layer to block up water with high hole expansion umbrella-shaped bracing instrument, includes umbrella-shaped suspension cap, outer bracing piece, center tube, interior bracing piece and bracing piece locking element, the center tube adopts the tail end longitudinal section to be T type cavity tubular structure, the bracing piece locking element passes the center tube is located the T type end department of center tube, umbrella-shaped suspension cap passes the center tube is fixed in the head end of center tube be provided with outer bracing piece pivot in the umbrella-shaped suspension cap, the head end of outer bracing piece with outer bracing piece pivot rotates to be connected, the slip piece is installed in the tail end rotation of outer bracing piece, utilizes slip piece and bracing piece locking element in order to realize outer bracing piece shrink in the purpose of center tube department the middle part of center tube is provided with interior bracing piece lower shaft, interior bracing piece passes through pivot under the interior bracing piece with the inner wall rotation of outer bracing piece is connected, the head end of outer bracing piece compression spring with the upper portion outer wall fixed connection of center tube, the tail end of outer bracing piece compression spring with the inner wall of outer bracing piece is provided with the outer bracing piece is fixed connection, the outer bracing piece compression spring's the outer end of outer bracing piece is connected with the outer bracing piece is provided with the outer bracing piece compression of outer bracing piece.
The tail end of the outer support rod is provided with a slip block rotating shaft, a connecting rod is rotatably installed on the slip block rotating shaft, the connecting rod is fixedly connected with the lower surface of the slip block, and a torsion spring is further arranged on one side, facing the long end of the outer support rod, of the connecting rod.
And a guide block is formed at the tail end of the outer support rod and is positioned above the slip blocks, and the guide block adopts a structure with a trapezoid cross section.
The number of the compression springs of the inner support rod is two, and the compression springs of the inner support rod are respectively.
The tail end of the support rod locking component is provided with a lower connecting piece, the outer wall of the head end of the lower connecting piece is in threaded connection with the inner wall of the tail end of the support rod locking component, and the T-shaped end of the central tube extends into the opening of the head end of the lower connecting piece and can move up and down along the lower connecting piece.
The outer wall of the central tube is provided with a pin hole, and the lower connecting piece is fixed with the central tube through a pin.
An upper connecting piece is arranged at the head end of the central tube, and the inner wall of the tail end of the upper connecting piece is in threaded connection with the outer wall of the head end of the central tube.
The utility model provides a select layer to block up umbrella-type braced instrument of footpath with high expansion, in the in-process of inserting, umbrella-type braced instrument is in the shrink state all the time, lower connecting piece is fixed in on the center tube through the pin, bracing piece locking part is under the holding power effect of lower connecting piece, unable down-movement, the slips piece is in the bracing piece locking part in hugging closely under torsion spring effect, make outer bracing piece lock in bracing piece locking part, it is down to the appointed position in the pit to support the instrument, pressurize in the tubular column, the pin cuts under the pressure differential effect of tubular column and sleeve pipe annular space, lose the fixed effort of pin between lower connecting piece and the center tube, bracing piece locking part down-movement under pressure and gravity effect, outer bracing piece slips piece outside bracing piece locking part, the outer bracing piece is all opened under outer bracing piece compression spring effect under the compression spring effect on the internal bracing piece, at this moment, slips piece and bracing piece locking part are laminating in certain downdip angle, in order to ensure that slips piece can effectively move down, quick break away from bracing piece locking part.
The beneficial effects of the invention are as follows: after the supporting tool passes through the completion pipe string of the oil-gas well, the outer diameter of the supporting tool is enlarged by 2.5 times and 3.5 times in the casing, and the functions of packing, selecting layers and plugging water are achieved; the existing well completion pipe string is not required to be moved, so that the water shutoff operation cost is greatly reduced, and the production stopping period is shortened; the operation is completed by utilizing the advantage of the continuous oil pipe under-pressure operation, well killing is not needed, and pollution to a producing stratum is avoided; is not limited by stratum and shaft conditions, and has wide application range; the supporting tool can be completely recovered and lifted out, and the integrity of a shaft and subsequent operation are not affected.
Drawings
FIG. 1 is a schematic diagram of the principle and structure of the present invention;
FIG. 2 is a schematic diagram of the principle structure of the invention after opening;
FIG. 3 is a top view of the invention after opening;
FIG. 4 is a bottom view of the umbrella-shaped hanging cap of the present invention after opening;
FIG. 5 is a schematic illustration of the connection of the outer support rod to slip segments of the present invention;
In the figure: 1 is an upper connecting piece; 2 is an umbrella-shaped hanging cap; 3 is an outer support rod rotating shaft; 4 is an outer support rod compression spring; 5 is an outer support rod; 6 is a central tube; 7 is an upper rotating shaft of the inner supporting rod; 8 is a compression spring on the inner support rod; 9 is an inner supporting rod; 10 is an inner support rod lower compression spring; 11 is the lower rotating shaft of the inner support rod; 12 is a guide block; 13 is a slip piece rotating shaft; 14 is a slip segment; 15 is a support rod locking component; 16 is a pin; 17 is a lower connecting piece, 18 is a supporting cloth; 19 is a torsion spring; 20 is a connecting rod.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
The technical scheme of the invention is further described by specific examples.
Example 1
The utility model provides a select layer to block up water and use high hole expansion umbrella-shaped supporting tool, including umbrella-shaped suspension cap 2, outer bracing piece 5, center tube 6, interior bracing piece 9 and bracing piece locking part 15, center tube 6 adopts the tail end longitudinal section to be T hollow tubular structure, bracing piece locking part 15 is located the T type end department of center tube 6 through center tube 6, umbrella-shaped suspension cap 2 is fixed in center tube 6 head end through center tube 6, be provided with outer bracing piece pivot 3 in umbrella-shaped suspension cap 2, the head end and the outer bracing piece pivot 3 rotation of outer bracing piece 5 are connected, slip piece 14 is installed in the tail end rotation of outer bracing piece 5, utilize slip piece 14 and bracing piece locking part 15 in order to realize the purpose that outer bracing piece 5 contracts in center tube 6 department, be provided with interior bracing piece lower spindle 11 in the middle part of center tube 6, interior bracing piece 9 is through interior bracing piece lower spindle 11 and interior bracing piece upper spindle 7 with the inner wall rotation of outer bracing piece 5, the head end and the upper portion outer wall of center tube 6 fixedly link to each other, the tail end and the outer bracing piece of outer bracing piece compression spring 4 fixedly link to each other with the inner wall of outer bracing piece 5, the outer bracing piece compression spring 4, the middle part and the outer bracing piece compression spring 6 and the outer bracing piece compression end and the outer bracing piece 5 are connected with the outer bracing piece 5, the outer bracing piece compression end is realized and outer bracing piece compression 5 is fixed with the outer bracing piece 5, and outer compression end and outer bracing piece 5 is opened by the outer bracing piece compression 5.
Example two
On the basis of the first embodiment, the tail end of the outer support rod 5 is provided with a slip block rotating shaft 13, a connecting rod 20 is rotatably arranged on the slip block rotating shaft 13, the connecting rod 20 is fixedly connected with the lower surface of the slip block 14, and a torsion spring 19 is further arranged on one side of the long end of the connecting rod 20, which faces the outer support rod 5.
A guide block 12 is formed at the tail end of the outer support rod 5, the guide block 12 is positioned above the slip segments 14, and the guide block 12 adopts a structure with a trapezoid cross section.
The number of the compression springs of the inner support rod is two, namely an upper compression spring 8 of the inner support rod and a lower compression spring 10 of the inner support rod.
Example III
On the basis of the second embodiment, a lower connecting piece 17 is arranged at the tail end of the supporting rod locking component 15, the outer wall of the head end of the lower connecting piece 17 is in threaded connection with the inner wall of the tail end of the supporting rod locking component 15, and the T-shaped end of the central tube 6 extends into the opening of the head end of the lower connecting piece 17 and can move up and down along the lower connecting piece 17.
The outer wall of the central tube 6 is provided with pin holes, and the lower connecting piece 17 is fixed with the central tube 6 through pins 16.
An upper connecting piece 1 is arranged at the head end of the central tube 6, and the tail end inner wall of the upper connecting piece 1 is in threaded connection with the head end outer wall of the central tube 6.
Example IV
The utility model provides a select layer to block up umbrella-type braced instrument of footpath with high expansion, in the in-process of inserting, umbrella-type braced instrument is in the shrink state all the time, lower connecting piece is fixed in on the center tube through the pin, bracing piece locking part is under the holding power effect of lower connecting piece, unable down-movement, the slips piece is in the bracing piece locking part in hugging closely under torsion spring effect, make outer bracing piece lock in bracing piece locking part, it is down to the appointed position in the pit to support the instrument, pressurize in the tubular column, the pin cuts under the pressure differential effect of tubular column and sleeve pipe annular space, lose the fixed effort of pin between lower connecting piece and the center tube, bracing piece locking part down-movement under pressure and gravity effect, outer bracing piece slips piece outside bracing piece locking part, the outer bracing piece is all opened under outer bracing piece compression spring effect under the compression spring effect on the internal bracing piece, at this moment, slips piece and bracing piece locking part are laminating in certain downdip angle, in order to ensure that slips piece can effectively move down, quick break away from bracing piece locking part.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
1. The utility model provides a select layer to block up water with high hole diameter umbrella-type supporting tool which characterized in that: including umbrella-type suspension cap, outer bracing piece, center tube, interior bracing piece and bracing piece locking element, the center tube adopts the tail end longitudinal section to be T type cavity tubular structure, the bracing piece locking element passes the center tube is located the T type end department of center tube, umbrella-type suspension cap passes the center tube is fixed in the head end of center tube be provided with outer bracing piece pivot in the umbrella-type suspension cap, the head end of outer bracing piece with outer bracing piece pivot rotates to be connected, slip piece is installed in the tail end rotation of outer bracing piece, utilizes slip piece and bracing piece locking element in order to realize outer bracing piece shrink in the purpose of center tube department the middle part of center tube is provided with interior bracing piece lower shaft, interior bracing piece passes through pivot under the interior bracing piece with the inner wall rotation of outer bracing piece is connected, outer bracing piece compression spring's head end with the upper portion outer wall fixed connection of center tube, outer bracing piece compression spring's tail end with the inner wall fixed connection of outer bracing piece, interior bracing piece compression spring's head end with the middle part outer wall fixed connection of center tube, the tail end and the outer bracing piece is in order to realize that the outer bracing piece is in order to open with the outer bracing piece of outer bracing piece and outer bracing piece compression cloth.
2. The high-expansion umbrella-shaped supporting tool for layer selection and water shutoff as claimed in claim 1, wherein: the tail end of the outer support rod is provided with a slip block rotating shaft, a connecting rod is rotatably installed on the slip block rotating shaft, the connecting rod is fixedly connected with the lower surface of the slip block, and a torsion spring is further arranged on one side, facing the long end of the outer support rod, of the connecting rod.
3. The high-expansion umbrella-shaped supporting tool for layer selection and water shutoff as claimed in claim 1, wherein: and a guide block is formed at the tail end of the outer support rod and is positioned above the slip blocks, and the guide block adopts a structure with a trapezoid cross section.
4. The high-expansion umbrella-shaped supporting tool for layer selection and water shutoff as claimed in claim 1, wherein: the number of the compression springs of the inner support rod is two, and the compression springs of the inner support rod are respectively.
5. The high-expansion umbrella-shaped supporting tool for layer selection and water shutoff as claimed in claim 1, wherein: the tail end of the support rod locking component is provided with a lower connecting piece, the outer wall of the head end of the lower connecting piece is in threaded connection with the inner wall of the tail end of the support rod locking component, and the T-shaped end of the central tube extends into the opening of the head end of the lower connecting piece and can move up and down along the lower connecting piece.
6. The high-expansion umbrella-shaped supporting tool for layer selection and water shutoff as claimed in claim 5, wherein: the outer wall of the central tube is provided with a pin hole, and the lower connecting piece is fixed with the central tube through a pin.
7. The high-expansion umbrella-shaped supporting tool for layer selection and water shutoff as claimed in claim 1, wherein: an upper connecting piece is arranged at the head end of the central tube, and the inner wall of the tail end of the upper connecting piece is in threaded connection with the outer wall of the head end of the central tube.
8. The method for using the high-expansion umbrella-shaped supporting tool for layer selection and water shutoff as claimed in claim 6, wherein the method comprises the following steps: in the process of entering, umbrella-shaped supporting tool is in a shrinkage state all the time, lower connecting piece is fixed on the center tube through the pin, bracing piece locking part is unable to move downwards under the holding power effect of lower connecting piece, the slips piece is in the bracing piece locking part under torsion spring effect, make outer bracing piece lock in bracing piece locking part, it is appointed position to be gone into in the pit with umbrella-shaped supporting tool, pressurize in the tubular column, the pin shears under the pressure differential effect of tubular column and sleeve pipe annular space, lose the fixed effort of pin between lower connecting piece and the center tube, bracing piece locking part moves downwards under pressure and gravity effect, outer bracing piece slips piece outside bracing piece locking part, the compression spring is under the compression spring under the inner bracing piece on the inner bracing piece, outer bracing piece is all opened under outer bracing piece compression spring effect, at this moment, slips piece and bracing piece locking part are certain downward inclination laminating, in order to ensure that slips piece can effectively move downwards, break away from bracing piece locking part fast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116140.1A CN114458239B (en) | 2021-09-23 | 2021-09-23 | High-expansion umbrella-shaped supporting tool for layer selection water shutoff and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116140.1A CN114458239B (en) | 2021-09-23 | 2021-09-23 | High-expansion umbrella-shaped supporting tool for layer selection water shutoff and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114458239A CN114458239A (en) | 2022-05-10 |
| CN114458239B true CN114458239B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111116140.1A Active CN114458239B (en) | 2021-09-23 | 2021-09-23 | High-expansion umbrella-shaped supporting tool for layer selection water shutoff and use method thereof |
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| CN (1) | CN114458239B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991702B (en) * | 2022-06-01 | 2024-05-03 | 中煤科工集团西安研究院有限公司 | Hole bottom grouting device, system and method for underground deep hole sealing of coal mine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2735496A (en) * | 1956-02-21 | L well bridge | ||
| US6454001B1 (en) * | 2000-05-12 | 2002-09-24 | Halliburton Energy Services, Inc. | Method and apparatus for plugging wells |
| TW200806219A (en) * | 2006-07-28 | 2008-02-01 | Ching-Feng Liu | Expanding and folding structure of a sunshade |
| CN103244074A (en) * | 2013-04-27 | 2013-08-14 | 河南理工大学 | Umbrella type hole packer |
| CN104895526A (en) * | 2014-03-03 | 2015-09-09 | 中国石油化工集团公司 | Hydraulic cement basket |
| CN207555068U (en) * | 2017-10-30 | 2018-06-29 | 圣晖工程技术（苏州）有限公司 | A kind of petroleum pipeline maintenance water blocking device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140096949A1 (en) * | 2012-10-05 | 2014-04-10 | 7092601 Canada, Inc. | Drill hole plug system |
-
2021
- 2021-09-23 CN CN202111116140.1A patent/CN114458239B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2735496A (en) * | 1956-02-21 | L well bridge | ||
| US6454001B1 (en) * | 2000-05-12 | 2002-09-24 | Halliburton Energy Services, Inc. | Method and apparatus for plugging wells |
| TW200806219A (en) * | 2006-07-28 | 2008-02-01 | Ching-Feng Liu | Expanding and folding structure of a sunshade |
| CN103244074A (en) * | 2013-04-27 | 2013-08-14 | 河南理工大学 | Umbrella type hole packer |
| CN104895526A (en) * | 2014-03-03 | 2015-09-09 | 中国石油化工集团公司 | Hydraulic cement basket |
| CN207555068U (en) * | 2017-10-30 | 2018-06-29 | 圣晖工程技术（苏州）有限公司 | A kind of petroleum pipeline maintenance water blocking device |
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| CN114458239A (en) | 2022-05-10 |
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