CN203891860U - Ultra-short radius hydrofracture tool for horizontal well - Google Patents
Ultra-short radius hydrofracture tool for horizontal well Download PDFInfo
- Publication number
- CN203891860U CN203891860U CN201420317237.8U CN201420317237U CN203891860U CN 203891860 U CN203891860 U CN 203891860U CN 201420317237 U CN201420317237 U CN 201420317237U CN 203891860 U CN203891860 U CN 203891860U
- Authority
- CN
- China
- Prior art keywords
- connector body
- horizontal well
- guide pipe
- ultra
- voltage tube
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010910 field residue Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to an ultra-short radius hydrofracture tool for a horizontal well. The ultra-short radius hydrofracture tool for the horizontal well comprises an oil pipe, a variable buckle and a guide pipe, the oil pipe is connected with the guide pipe through the variable buckle, a plurality of kerfs are formed in one side of the guide pipe, a high-pressure pipe is sleeved with the guide pipe, a sprayer is arranged at the top end of the high-pressure pipe, nozzles are arranged on the two sides of the sprayer, the high-pressure pipe is in a multi-section mode, and every two adjacent high-pressure pipe sections are connected through a connecting device. Each connecting device comprises a connector body, standby caps and expansion rings, wherein the ends of every two adjacent high-pressure pipe sections enter the connector body, the standby caps are arranged at the two ends of the connector body, and the joining positions of the standby caps and the connector body are provided with the expansion rings. Both ultra-short radius turning and hydrofracture can be achieved, leakage is prevented thoroughly, and hydrofracture can be achieved in the horizontal well after ultra-short radius horizontal drilling is finished.
Description
Technical field
The utility model belongs to oilfield machinery field, relates to a kind of super short radial horizontal well fracturing instrument.
Background technology
In recent years, along with the continuous upgrading of oil production engineering, measures technology is also development in pluralism, and for the residue oil reservoir transformation of individual well, technology category is a lot.The directed horizontal drilling technique of ultra-short radius adopting at present more, this technique is at former casing inward opening window deflecting, 3.2 meters of radius of curvature have got final product turning in 90 °, utilizing flexible drill string along continuous straight runs to creep into more than 50 meters, is the old well residue of exploitation oil reservoir, the very effective technological measure of near wellbore zone de-plugging; Conventional levels well adopts waterpower staged fracturing more, but the horizontal hole diameter after ultra-short radius horizontal drilling has limitation, just need to invent and a kind ofly can, at 3.2 meters of hydraulic jetting fracturing instruments of 90 ° of turning, realize the double effects that in layer, a ultra-short radius horizontal drilling, two kinds of techniques of hydraulic jetting fracturing are transformed simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of super short radial horizontal well fracturing instrument, and the horizontal hole after solution ultra-short radius horizontal drilling cannot be realized the problem of fracturing.
The utility model is achieved through the following technical solutions: super short radial horizontal well fracturing instrument, comprise oil pipe, variable buckle and guide pipe, and oil pipe is connected with guide pipe by variable buckle, and guide pipe one side has a plurality of slots; In described guide pipe, be set with high-voltage tube, there is shower nozzle on high-voltage tube top, and there is nozzle shower nozzle both sides, and wherein, high-voltage tube is more piece, and two adjacent joint high-voltage tubes connect by linkage; Linkage comprises connector body, standby cap and expansion loop, and two adjacent joint high-voltage tube ends enter in connector body, and standby cap is equipped with at connector body two ends, and the joining place of standby cap and connector body is provided with expansion loop.
Further, described high-voltage tube is provided with annular groove, and expansion loop is positioned at annular groove.
Further, between described standby cap and connector body, be also provided with safetied pin.
Further, sealing ring is also housed between described high-voltage tube and connector body.
Adopt the good effect of technique scheme: the utility model both can have been realized ultra-short radius and turn round, can also realize fracturing, can thoroughly prevent seepage, realized the oil formation improvement effect of individual well duplex skill, realize directional drilling, directional fracturing, oil field residue oil reservoir is fully taped the latent power, and another of having filled up domestic and international oil production engineering is blank, plays great impetus to the development of oil production engineering.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged drawing of linkage in Fig. 1;
Fig. 3 is the structural representation of high-voltage tube.
In figure, 1 oil pipe, 2 variable buckles, 3 guide pipes, 4 high-voltage tubes, 5 shower nozzles, 6 nozzles, 7 connector bodies, 8 for cap, 9 expansion loops, 10 annular grooves, 11 fixing pins, 12 sealing rings.
The specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further, but should not be construed as restriction of the present utility model:
Fig. 1 is structural representation of the present utility model, Fig. 2 is the enlarged drawing of linkage in Fig. 1, as shown in the figure, super short radial horizontal well fracturing instrument, comprise oil pipe 1, variable buckle 2 and guide pipe 3, oil pipe 1 is connected with guide pipe 3 by variable buckle 2, and guide pipe 3 one sides have a plurality of slots, and the effect of guide pipe is to realize turning.In described guide pipe 3, be set with high-voltage tube 4, there is shower nozzle 5 on high-voltage tube 4 tops, and there is nozzle 6 shower nozzle 5 both sides, and High-Pressure Water sprays by nozzle, realizes pressure break.Wherein, high-voltage tube 4 is more piece, and two adjacent joint high-voltage tubes 4 connect by linkage; Linkage comprises connector body 7, standby cap 8 and expansion loop 9, and two adjacent joint high-voltage tube 4 ends enter in connector body 7, and standby cap 8 is equipped with at connector body 7 two ends, and the joining place of standby cap 8 and connector body 7 is provided with expansion loop 9.In the middle of reality, length limited due to high-voltage tube, therefore more piece high-voltage tube need to be coupled together to use, connector body mainly plays the effect of connection, and after the standby cap at two ends screws, compression-expansion ring, after expansion loop expands, the joining place of the standby cap of sealing and connector body, can guarantee sealing effectiveness.
Fig. 3 is the structural representation of high-voltage tube, and as shown in the figure, described high-voltage tube 4 is provided with annular groove 10, and expansion loop 9 is positioned at annular groove 10, and this kind of design can guarantee that expansion loop can not be shifted.
In order to prevent back-off, once because there is back-off, sealing effectiveness will lose efficacy, and therefore, between described standby cap 8 and connector body 7, was also provided with safetied pin 11.
Between described high-voltage tube 4 and connector body 7, sealing ring 12 is also housed, guarantees sealing, prevent high pressure seepage flow.
During use, under the effect of guide pipe, high-voltage tube is passive to turn round.High-Pressure Water, through high-voltage tube, sprays to both sides by the nozzle on shower nozzle, and pressure break is realized in stratum.Linkage can guarantee thoroughly sealing between two joint high-voltage tubes, prevents the raw seepage of elevated pressure.
The utility model both can have been realized ultra-short radius and turn round, can also realize fracturing, can thoroughly prevent seepage, realized the oil formation improvement effect of individual well duplex skill, realize directional drilling, directional fracturing, oil field residue oil reservoir is fully taped the latent power, and another of having filled up domestic and international oil production engineering is blank, plays great impetus to the development of oil production engineering.
Claims (4)
1. a super short radial horizontal well fracturing instrument, comprise oil pipe (1), variable buckle (2) and guide pipe (3), oil pipe (1) is connected with guide pipe (3) by variable buckle (2), guide pipe (3) one sides have a plurality of slots, it is characterized in that: in described guide pipe (3), be set with high-voltage tube (4), there is shower nozzle (5) on high-voltage tube (4) top, there is nozzle (6) shower nozzle (5) both sides, wherein, high-voltage tube (4) is more piece, and two adjacent joint high-voltage tubes (4) connect by linkage; Linkage comprises connector body (7), standby cap (8) and expansion loop (9), two adjacent joint high-voltage tube (4) ends enter in connector body (7), standby cap (8) is equipped with at connector body (7) two ends, and the joining place of standby cap (8) and connector body (7) is provided with expansion loop (9).
2. super short radial horizontal well fracturing instrument according to claim 1, is characterized in that: described high-voltage tube (4) is provided with annular groove (10), and expansion loop (9) is positioned at annular groove (10).
3. super short radial horizontal well fracturing instrument according to claim 1, is characterized in that: between described standby cap (8) and connector body (7), be also provided with safetied pin (11).
4. super short radial horizontal well fracturing instrument according to claim 1, is characterized in that: between described high-voltage tube (4) and connector body (7), sealing ring (12) is also housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317237.8U CN203891860U (en) | 2014-06-16 | 2014-06-16 | Ultra-short radius hydrofracture tool for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317237.8U CN203891860U (en) | 2014-06-16 | 2014-06-16 | Ultra-short radius hydrofracture tool for horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891860U true CN203891860U (en) | 2014-10-22 |
Family
ID=51718276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420317237.8U Expired - Fee Related CN203891860U (en) | 2014-06-16 | 2014-06-16 | Ultra-short radius hydrofracture tool for horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203891860U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993868A (en) * | 2014-06-16 | 2014-08-20 | 大庆井泰石油工程技术股份有限公司 | Ultra-short radius horizontal well hydraulic fracturing tool |
-
2014
- 2014-06-16 CN CN201420317237.8U patent/CN203891860U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993868A (en) * | 2014-06-16 | 2014-08-20 | 大庆井泰石油工程技术股份有限公司 | Ultra-short radius horizontal well hydraulic fracturing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |