CN111206910A - Hydraulic jet staged fracturing tool for horizontal well - Google Patents
Hydraulic jet staged fracturing tool for horizontal well Download PDFInfo
- Publication number
- CN111206910A CN111206910A CN202010062859.0A CN202010062859A CN111206910A CN 111206910 A CN111206910 A CN 111206910A CN 202010062859 A CN202010062859 A CN 202010062859A CN 111206910 A CN111206910 A CN 111206910A
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- Prior art keywords
- horizontal well
- pipe
- fixed mounting
- staged fracturing
- hydraulic jet
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- 239000004576 sand Substances 0.000 claims description 26
- 238000005520 cutting process Methods 0.000 claims description 22
- 238000007790 scraping Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims 2
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000010902 straw Substances 0.000 description 5
- 238000005488 sandblasting Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
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- 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)
- Earth Drilling (AREA)
Abstract
The invention discloses a horizontal well hydraulic jet staged fracturing tool, which relates to the technical field of horizontal well fracturing tools, in particular to a horizontal well hydraulic jet staged fracturing tool. According to the horizontal well hydraulic jet staged fracturing tool, the centralizing sleeve is fixedly arranged outside the oil pipe, and the pulleys which are uniformly distributed are movably arranged outside the centralizing sleeve, so that when the device is put into a well completion pipe column, the sliding friction between the device and the inner wall of the well completion pipe column is changed into rolling friction through the pulleys, the friction probability between each external device of the device and the inner wall of the well completion pipe column is reduced, and meanwhile, each external device of the device is prevented from being clamped inside the well completion pipe column.
Description
Technical Field
The invention relates to the technical field of horizontal well fracturing tools, in particular to a horizontal well hydraulic jet staged fracturing tool.
Background
The method for staged fracturing by using the coiled tubing to spray the casing at home and abroad is that in a horizontal well for casing well cementation and completion, a string of a pipe column with a hydraulic injection tool is put into the coiled tubing, after sand-blasting and perforating are carried out on the coiled tubing, sand-blasting and fracturing are carried out on the casing, after one section of fracturing is finished, a section of sand plug is reserved in the casing to be used as isolation, and the pipe column is dragged to the next section to carry out sand-blasting and fracturing construction.
When the method works, the construction period is longer, the fracturing fluid cannot be drained timely to pollute an oil layer, in addition, after sand fracturing is carried out, fracturing sand is easy to adhere to the inner wall of a well completion pipe column, the oil layer is easy to pollute during subsequent oil production, in addition, the conventional fracturing tool is usually a pipe column string, when the pipe column string is placed inside the well completion pipe column, the side wall of the fracturing tool is easy to rub against the inner wall of the pipe column, so that the fracturing tool is clamped on the inner wall of the pipe column, and the construction difficulty is brought.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a horizontal well hydraulic jet staged fracturing tool which has the advantages of reducing the construction difficulty, reducing the influence of fracturing sand on the product quality and the like, and solves the problems in the background technology.
In order to achieve the purposes of reducing the construction difficulty and reducing the influence of the fracturing sand on the product quality, the invention is realized by the following technical scheme: a horizontal well hydraulic jet staged fracturing tool comprises a well completion pipe column and an oil pipe, wherein the outer part of the oil pipe is fixedly provided with evenly distributed sand blasters, the outer part of the oil pipe is fixedly provided with packers positioned at the left side and the right side of the sand blaster, the outer part of the oil pipe is fixedly sleeved with a flexible fixing ring, the outer part of the flexible fixing ring is fixedly sleeved with a centering sleeve, the periphery of the centering sleeve is clamped with evenly distributed clamping blocks, the top of each clamping block is fixedly provided with an elastic telescopic rod, the top end of the elastic telescopic rod is fixedly provided with a pulley, the top end of the oil pipe is fixedly provided with a hydraulic motor, an output shaft of the hydraulic motor is fixedly provided with a clamping sleeve, the inner part of the clamping sleeve is movably provided with a rotary scraper, the inner part of the oil pipe is fixedly provided with a return, and the outside of the return pipe is fixedly provided with suction pipes which are uniformly distributed.
Preferably, snap rings positioned at two ends of the packer are fixedly arranged outside the completion string, the diameter value of each snap ring is smaller than the inner diameter value of the completion string, and the packers are distributed at two ends of the sand blaster in a mirror image mode.
Preferably, the number of the centralizing sleeves is three, the three centralizing sleeves are uniformly distributed outside the oil pipe, a fixed end cover is fixedly mounted on the left side of the centralizing sleeve, and the fixed end cover is fixedly connected with the centralizing sleeve through a connecting screw rod.
Preferably, the periphery of the centering sleeve is provided with clamping grooves which are matched with the clamping blocks and are uniformly distributed, and the width of each clamping groove is the same as that of each clamping block.
Preferably, a return spring is movably sleeved above the outer part of the elastic telescopic rod, and the elastic telescopic rod and the pulley at the top are positioned in the middle of the left side and the right side of the centralizing sleeve.
Preferably, the cutting ferrule evenly distributed in the outside of hydraulic motor output shaft, the inside of cutting ferrule is seted up the spout that mutually supports with rotatory scraper blade, the outside fixed mounting of rotatory scraper blade bottom has the spacing ring.
Preferably, the bottom fixed mounting of rotatory scraper blade has evenly distributed in the inside compression spring of cutting ferrule, and compression spring's bottom and the inboard bottom fixed connection of cutting ferrule, the chamfer has been seted up to the left and right sides of rotatory scraper blade.
Preferably, the rubber scraping disc outside the return pipe is funnel-shaped, the diameter value of the rubber scraping disc is the same as the inner diameter value of the completion string, and the bottom end of the suction pipe is attached to the inner wall of the completion string.
The invention provides a horizontal well hydraulic jet staged fracturing tool which has the following beneficial effects:
1. this horizontal well hydraulic jet staged fracturing instrument, through the outside fixed mounting at oil pipe right the sleeve pipe, and there is evenly distributed's pulley at the outside movable mounting who rights the sleeve pipe, when going into the completion tubular column with the device inside, become rolling friction through the pulley with the sliding friction of the device and completion tubular column inner wall, reduce the probability of the outside each device of the device and the friction of completion tubular column inner wall, prevent simultaneously that each device card of the device outside is inside the completion tubular column, the construction degree of difficulty has been reduced, further improve work efficiency.
2. This horizontal well hydraulic jet staged fracturing instrument, through install the hydraulic motor additional at oil pipe's one end, and fixed mounting evenly distributed's cutting ferrule and rotatory scraper blade on hydraulic motor's output shaft, the rotatory scraper blade that drives evenly distributed through the hydraulic motor rotates, make the fracturing sand of adhesion at the completion tubular column inner wall drop, reduce the influence of fracturing sand to follow-up oil quality, simultaneously at the in-process of taking oil pipe out, the rubber scraping plate makes the fracturing sand of scraping from the completion tubular column inner wall gather together at the removal in-process, adsorb the fracturing sand into inside the return flow pipe through the straw, and conduct to the horizontal well outside, further reduced the inside content of fracturing sand at the completion tubular column, further guaranteed the quality of oil.
3. This horizontal well hydraulic jet staged fracturing instrument, through install the elasticity telescopic link additional between the bottom at the pulley and the sleeve pipe of righting, make the pulley can contract according to the inside diameter value of well completion tubular column, make the device can use in unidimensional oil well, the application range of the device has been improved, and simultaneously, install evenly distributed's compression spring additional in the inside of cutting ferrule, make rotatory scraper blade can contract according to the internal diameter value of well completion tubular column, application range has further been increased, in addition, the chamfer is seted up to the left and right sides at rotatory scraper blade, the inside degree of difficulty of going into the well completion tubular column with the device has been reduced, the degree of difficulty of the device construction has further been reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the right side of the fixed end cap of the present invention;
FIG. 3 is a schematic view of the external structure of the return tube of the present invention;
fig. 4 is a schematic structural view of the interior of the ferrule of the present invention.
In the figure: 1. a completion string; 2. an oil pipe; 3. a sand blaster; 4. a packer; 5. righting the casing; 6. fixing an end cover; 7. a flexible retaining ring; 8. a pulley; 9. an elastic telescopic rod; 10. a clamping block; 11. a hydraulic motor; 12. a card sleeve; 13. a straw; 14. a return pipe; 15. a rubber scraping disc; 16. rotating the scraper plate; 17. compressing the spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 4, the present invention provides a technical solution: a horizontal well hydraulic jet staged fracturing tool comprises a well completion pipe column 1 and an oil pipe 2, wherein sand sprayers 3 which are uniformly distributed are fixedly arranged outside the oil pipe 2, packers 4 which are positioned on the left side and the right side of the sand sprayers 3 are fixedly arranged outside the oil pipe 2, snap rings which are positioned at two ends of the packers 4 are fixedly arranged outside the well completion pipe column 1, the diameter value of each snap ring is smaller than the inner diameter value of the well completion pipe column 1, the packers 4 are distributed at two ends of the sand sprayers 3 in a mirror image manner, the snap rings are additionally arranged on two sides of the packers 4, when the device works and the packers 4 expand to seal between the two packers 4, the packers 4 are jacked by the snap rings on two sides of the snap rings, the distance of the packers 4 expanding towards two sides is reduced, the expansion directions of the packers 4 are mainly concentrated in the axial direction, so, the flexible fixing ring 7 is fixedly sleeved with a centering sleeve 5, the number of the centering sleeves 5 is three, the three centering sleeves 5 are uniformly distributed outside the oil pipe 2, the left side of the centering sleeve 5 is fixedly provided with a fixed end cover 6, the fixed end cover 6 is fixedly connected with the centering sleeve 5 through a connecting screw, the centering sleeve 5 and the fixed end cover 6 can be disassembled through the connecting screw, a clamping block 10, a pulley 8 and an elastic telescopic rod 9 which are clamped inside the centering sleeve 5 can be replaced, meanwhile, the position of the clamping block 10 is limited through the fixed end cover 6, the stability of the clamping block 10 and a top pulley 8 is ensured, the probability of damage of the device is reduced, the effectiveness of the device is ensured, the uniformly distributed clamping blocks 10 are clamped on the peripheral side of the centering sleeve 5, and the elastic telescopic rod 9 is fixedly installed at the top of the clamping block 10, the periphery of the centralizing sleeve 5 is provided with clamping grooves which are matched with the clamping blocks 10 and are uniformly distributed, the width value of each clamping groove is the same as that of the clamping block 10, when the device is placed into the completion string 1, sliding friction is changed into rolling friction through the pulleys 8 outside the centralizing sleeve 5, the friction force between the device and the inner wall of the completion string 1 when the device moves is reduced, meanwhile, the device is prevented from being clamped in the completion string 1 when the device moves, the construction difficulty of the device is reduced, the pulleys 8 are fixedly arranged at the top end of the elastic telescopic rod 9, a reset spring is movably sleeved above the outer part of the elastic telescopic rod 9, the elastic telescopic rod 9 and the pulleys 8 at the top are positioned in the middle parts of the left side and the right side of the centralizing sleeve 5, the elastic telescopic rod 9 is additionally arranged between the bottom of the pulleys 8 and the centralizing sleeve 5, and the pulleys 8 can contract according to, the device can be used in oil wells with different sizes, the application range of the device is improved, meanwhile, the centralizing sleeve 5 and the oil pipe 2 are supported by a plurality of reset springs outside the elastic telescopic rod 9, the oil pipe 2 is ensured to be always positioned in the middle of the inner side of the well completion pipe column 1, the device is ensured to be uniform in all directions during fracturing, the top end of the oil pipe 2 is fixedly provided with a hydraulic motor 11, an output shaft of the hydraulic motor 11 is fixedly provided with a cutting sleeve 12, the interior of the cutting sleeve 12 is movably provided with a rotary scraper 16, the cutting sleeve 12 is uniformly distributed outside the output shaft of the hydraulic motor 11, the interior of the cutting sleeve 12 is provided with a chute which is matched with the rotary scraper 16, the exterior of the bottom end of the rotary scraper 16 is fixedly provided with a limit ring, the rotary scraper 16 outside the output shaft is driven to rotate by the hydraulic motor 11, fracturing sand, the influence on the oil quality in the follow-up process is reduced, the rotary scraper 16 can move up and down along the inside of the cutting sleeve 12 through the chute and the limiting ring inside the cutting sleeve 12, the stability of the cutting sleeve 12 is ensured, the probability of damage of the device is further reduced, the return pipe 14 penetrating through the right side of the output shaft of the hydraulic motor 11 is fixedly arranged inside the oil pipe 2, the rubber scraping disc 15 is fixedly arranged at the top end of the return pipe 14, the suction pipes 13 uniformly distributed are fixedly arranged outside the return pipe 14, the compression springs 17 uniformly distributed inside the cutting sleeve 12 are fixedly arranged at the bottom of the rotary scraper 16, the bottom end of each compression spring 17 is fixedly connected with the bottom of the inner side of the cutting sleeve 12, chamfers are arranged on the left side and the right side of the rotary scraper 16, meanwhile, the compression springs 17 uniformly distributed are additionally arranged inside the cutting sleeve 12, and the rotary, further increased application range, in addition, set up the chamfer in the left and right sides of rotatory scraper blade 16, reduced the device and gone into the inside degree of difficulty of completion tubular column 1 down, further reduced the degree of difficulty of the device construction, the outside rubber scraping plate 15 shape of back flow pipe 14 is for leaking hopper-shaped, and the diameter value of rubber scraping plate 15 is the same with the internal diameter value of completion tubular column 1, the inner wall of completion tubular column 1 is laminated to the bottom of straw 13, when the device accomplishes the fracture and moves to the outside, the fracture sand that scrapes down rotatory scraper blade 16 through rubber scraping plate 15 is gathered together, and separate out the horizontal well outside with the fracture sand through the outside evenly distributed's of back flow pipe 14 straw 13, further reduced the influence of fracture sand to the oil, the quality of oil has been guaranteed.
In conclusion, when the horizontal well hydraulic jet staged fracturing tool is used, when the string is placed inside a completion string 1, sliding friction is changed into rolling friction through a centralizing sleeve 5 outside an oil pipe 2 and a pulley 8 outside the centralizing sleeve 5, so that the device can freely move inside the completion string 1, in addition, a flexible fixing ring 7 is additionally arranged inside the centralizing sleeve 5, as the flexible fixing ring 7 is made of a flexible material, when the oil pipe 2 moves along a bent part inside the completion string 1, the flexible fixing ring 7 inside the centralizing sleeve 5 bends along the oil pipe 2, so that the centralizing sleeve 5 can smoothly enter the completion string 1, the clamping block 10, the pulley 8 and the elastic telescopic rod 9 can be maintained and replaced by detaching a fixed end cover 6 on the left side of the centralizing sleeve 5, and after fracturing of the device is completed, a rotary scraper 16 outside an output shaft is driven by a hydraulic motor 11 to rotate, make the fracturing sand of adhesion at completion tubular column 1 inner wall drop, collect the fracturing sand through rubber scraping disc 15 simultaneously to follow straw 13 suction horizontal well outside, regularly overhaul the device, can.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a horizontal well hydraulic jet staged fracturing instrument, includes well completion tubular column (1), oil pipe (2), its characterized in that: the utility model discloses a hydraulic motor, including oil pipe (2), the external fixed mounting of oil pipe (2) has evenly distributed's sand blaster (3), and the external fixed mounting of oil pipe (2) has packer (4) that are located the sand blaster (3) left and right sides, the external fixed mounting of oil pipe (2) has cup jointed flexible solid fixed ring (7), and the external fixed mounting of flexible solid fixed ring (7) has cup jointed and right sleeve pipe (5), the week side joint of righting sleeve pipe (5) has evenly distributed's fixture block (10), and the top fixed mounting of fixture block (10) has elastic telescopic rod (9), the top fixed mounting of elastic telescopic rod (9) has pulley (8), the top fixed mounting of oil pipe (2) has hydraulic motor (11), and fixed mounting has cutting ferrule (12) on the output shaft of hydraulic motor (11), the inside movable mounting of cutting ferrule (12) has rotatory scraper blade (16), the inside fixed mounting of oil pipe (2) has back flow (14) that run through ) And the top end of the return pipe (14) is fixedly provided with a rubber scraping disc (15), and the outside of the return pipe (14) is fixedly provided with evenly distributed suction pipes (13).
2. The horizontal well hydraulic jet staged fracturing tool of claim 1, wherein: the outside fixed mounting of well completion tubular column (1) has the snap ring that is located packer (4) both ends, and the diameter value of snap ring is less than the internal diameter value of well completion tubular column (1), packer (4) mirror image distribution is in the both ends of sand blaster (3).
3. The horizontal well hydraulic jet staged fracturing tool of claim 1, wherein: the number of the centralizing sleeves (5) is three, the three centralizing sleeves (5) are uniformly distributed outside the oil pipe (2), a fixed end cover (6) is fixedly mounted on the left side of the centralizing sleeve (5), and the fixed end cover (6) is fixedly connected with the centralizing sleeve (5) through a connecting screw rod.
4. The horizontal well hydraulic jet staged fracturing tool of claim 1, wherein: the periphery of the centering sleeve (5) is provided with clamping grooves which are matched with the clamping blocks (10) and are uniformly distributed, and the width values of the clamping grooves are the same as that of the clamping blocks (10).
5. The horizontal well hydraulic jet staged fracturing tool of claim 1, wherein: a return spring is movably sleeved above the outer part of the elastic telescopic rod (9), and the elastic telescopic rod (9) and the pulley (8) at the top are positioned in the middle of the left side and the right side of the righting sleeve (5).
6. The horizontal well hydraulic jet staged fracturing tool of claim 1, wherein: the cutting ferrule (12) evenly distributed outside the output shaft of the hydraulic motor (11), the cutting ferrule (12) is provided with a sliding groove matched with the rotary scraper (16) in the inside, and the outside of the bottom end of the rotary scraper (16) is fixedly provided with a limiting ring.
7. The horizontal well hydraulic jet staged fracturing tool of claim 1, wherein: the bottom fixed mounting of rotatory scraper blade (16) has evenly distributed in inside compression spring (17) of cutting ferrule (12), and the bottom of compression spring (17) and the inboard bottom fixed connection of cutting ferrule (12), the chamfer has been seted up to the left and right sides of rotatory scraper blade (16).
8. The horizontal well hydraulic jet staged fracturing tool of claim 1, wherein: the rubber scraping disc (15) outside the return pipe (14) is funnel-shaped, the diameter value of the rubber scraping disc (15) is the same as the inner diameter value of the well completion pipe column (1), and the bottom end of the suction pipe (13) is attached to the inner wall of the well completion pipe column (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062859.0A CN111206910B (en) | 2020-01-19 | 2020-01-19 | Hydraulic jet staged fracturing tool for horizontal well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062859.0A CN111206910B (en) | 2020-01-19 | 2020-01-19 | Hydraulic jet staged fracturing tool for horizontal well |
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| Publication Number | Publication Date |
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| CN111206910A true CN111206910A (en) | 2020-05-29 |
| CN111206910B CN111206910B (en) | 2020-10-27 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946296A (en) * | 2020-08-31 | 2020-11-17 | 张文茂 | Packer for preventing packer rubber sleeve from being damaged |
| CN112267883A (en) * | 2020-10-23 | 2021-01-26 | 林国丰 | Splitting rod for rock exploitation |
| CN112505273A (en) * | 2020-11-20 | 2021-03-16 | 青海蓝博检测科技有限公司 | Quality detection equipment for domestic drinking water installed in household pipeline |
| CN112855066A (en) * | 2021-01-05 | 2021-05-28 | 孙淑芳 | From soluble bridging plug of taking fracturing ball |
| CN113702508A (en) * | 2021-09-03 | 2021-11-26 | 浙江师范大学 | Resonance acoustics nondestructive test device |
| CN114607324A (en) * | 2022-03-28 | 2022-06-10 | 大庆市易拓必盛科技有限公司 | Energy release capacity expansion device and method |
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| CN112505273A (en) * | 2020-11-20 | 2021-03-16 | 青海蓝博检测科技有限公司 | Quality detection equipment for domestic drinking water installed in household pipeline |
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| CN112855066B (en) * | 2021-01-05 | 2021-09-14 | 大安鸿源管业有限公司 | From soluble bridging plug of taking fracturing ball |
| CN113702508A (en) * | 2021-09-03 | 2021-11-26 | 浙江师范大学 | Resonance acoustics nondestructive test device |
| CN114607324A (en) * | 2022-03-28 | 2022-06-10 | 大庆市易拓必盛科技有限公司 | Energy release capacity expansion device and method |
| CN114607324B (en) * | 2022-03-28 | 2023-01-17 | 大庆市易拓必盛科技有限公司 | Energy release capacity expansion device and method |
| CN114876436A (en) * | 2022-06-09 | 2022-08-09 | 马兴芹 | Anti-blocking type sand blower for jet hole |
| CN117108229A (en) * | 2023-10-23 | 2023-11-24 | 中铁二十五局集团有限公司 | Drilling equipment for bridge construction |
| CN117108229B (en) * | 2023-10-23 | 2024-05-24 | 中铁二十五局集团有限公司 | Drilling equipment for bridge construction |
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