CN112031726B - Turbine drive circumference sliding sleeve formula pulse generation instrument - Google Patents
Turbine drive circumference sliding sleeve formula pulse generation instrument Download PDFInfo
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- CN112031726B CN112031726B CN202010898448.5A CN202010898448A CN112031726B CN 112031726 B CN112031726 B CN 112031726B CN 202010898448 A CN202010898448 A CN 202010898448A CN 112031726 B CN112031726 B CN 112031726B
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- sleeve
- turbine
- driven
- frequency modulation
- cavity
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
Abstract
The invention discloses a turbine driving circumferential sliding sleeve type pulse generating tool, which comprises: the device comprises a shell, a turbine mechanism, a transmission mechanism, a frequency modulation mechanism, a pressurization mechanism and a check valve; the side wall of the shell is provided with a pulse perforation; the turbine mechanism comprises a turbofan, and the turbofan comprises blades; the transmission mechanism comprises a driving sleeve, a frequency modulation gear body and a driven sleeve, the driving sleeve is arranged in the lower cavity and is coaxially arranged with the shell, the driving sleeve is rotatably connected with the shell, one end of the driving sleeve is fixedly connected with the blades, the frequency modulation gear body is connected with the driving sleeve, and the driven sleeve is connected with the frequency modulation gear body; the check valve is arranged in the cavity and is used for preventing high-pressure fluid from flowing backwards. The technical scheme provided by the invention has the beneficial effects that: the frequency-modulated gear body is adopted to adjust the hydraulic pulse frequency, hydraulic pressurization is realized through the mechanical spring, turbine driving is adopted, the tool overflowing channel is not prone to blockage, and the complete reliability is good.
Description
Technical Field
The invention relates to the technical field of hydraulic fracturing tools, in particular to a turbine-driven circumferential sliding sleeve type pulse generating tool.
Background
The natural productivity of low-porosity and low-permeability oil and gas reservoirs is low, and the low-porosity and low-permeability oil and gas reservoirs generally have commercial value after artificial fracturing modification except for the fact that a few crack development zones have high natural productivity.
The aim of hydraulic fracturing is to destroy rocks by hydraulic energy, the common loading modes are different, the difficulty degree of material destruction is different, and besides the hydraulic static pressure load of the conventional hydraulic fracturing, the material is more easily destroyed by the common dynamic load, so that the hydraulic power transmission mode of a hydraulic system is improved, and the improvement of the water power utilization efficiency of the hydraulic fracturing becomes the key of the dynamic load hydraulic fracturing.
A tool for changing hydrostatic pressure into hydraulic pulse is called a hydraulic pulse generator, most of the existing fracturing tools adopt a screw as a driving device, and in use, the problem that the screw is easy to block and stop working due to more gravel content in fracturing fluid is found, so that the stability of the fracturing device is poor, and the progress of fracturing construction is seriously influenced; in addition, the air bag type energy accumulator is adopted for pressurization, the sealing reliability is poor, and the pressurization effect is influenced.
Disclosure of Invention
In view of the above, it is necessary to provide a turbine-driven circumferential sliding sleeve type pulse generation tool to solve the technical problems that the existing fracturing tool is easy to block and the reliability of the pressurization mechanism is poor.
A turbine-driven circumferential sliding sleeve type pulse generating tool comprising: the device comprises a shell, a turbine mechanism, a transmission mechanism and a check valve;
the casing is a hollow cavity, the casing is provided with a female buckle end processed with a female buckle, and a perforation communicated with the cavity is formed in the side wall of the casing;
the turbine mechanism comprises a turbofan, the turbofan comprises a blade, the blade is arranged in the cavity and divides the cavity into an upper cavity and a lower cavity, the upper cavity is communicated with the female buckle end, and the lower cavity is communicated with the perforation;
the transmission mechanism comprises a driving sleeve, a frequency modulation gear body and a driven sleeve, the driving sleeve is arranged in the cavity and is coaxial with the shell, one end of the driving sleeve is fixedly connected with the blade, the frequency modulation gear body is connected with the driving sleeve, and the driven sleeve is connected with the frequency modulation gear body; the driven sleeve is positioned in the shell and is rotationally connected with the shell, the outer side wall of the driven sleeve is attached to the inner side wall of the shell, an inner hole matched with the perforation is formed in the driven sleeve, and when the driven sleeve is rotated to a preset position, the inner hole is communicated with the perforation;
the check valve is arranged in the cavity of the shell and is used for preventing high-pressure fluid from flowing backwards.
Compared with the prior art, the technical scheme provided by the invention has the beneficial effects that: by adopting the driving sleeve as the transmission assembly, the fracturing fluid only passes through the turbofan and the check valve which are not easy to block in the flowing process of the fracturing fluid in the shell, so that the device is not easy to block in the using process and has good stability.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of a turbine-driven circumferential sliding sleeve type pulse generating tool provided by the present invention;
FIG. 2 is a cross-sectional view taken along section A-A of FIG. 1;
FIG. 3 is a schematic perspective view of the turbine-driven circumferential sliding sleeve type pulse generating tool of FIG. 1 with the housing omitted;
FIG. 4 is a schematic perspective view of the turbine-driven circumferential sliding sleeve type pulse generating tool of FIG. 3 with the drive sleeve omitted;
FIG. 5 is a schematic perspective view of the turbine-driven circumferential sliding sleeve type pulse generation tool of FIG. 4 with the check sleeve omitted;
FIG. 6 is a perspective view of the turbofan of FIG. 3;
in the figure: the device comprises a shell 1, a turbine mechanism 2, a transmission mechanism 3, a check valve 4, a frequency modulation mechanism 5, a protective sleeve 11, a female buckle 111, a lower cover 12, a perforation 121, a turbofan 21, a blade 211, a rotating ring 212, a bearing 22, a driving sleeve 31, a first gear ring 311, a frequency modulation gear body 32, a fixed sleeve 321, a frequency modulation gear 322, a tooth-lacking portion 3221, a driven sleeve 33, an inner hole 331, a second gear ring 332, a check sleeve 41, a one-way flow passage 411, a check valve body 42, a check spring 43, a pressurizing piston 51 and a pressurizing spring 52.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1 to 6, the present invention provides a turbine-driven circumferential sliding sleeve type pulse generation tool, which includes a housing 1, a turbine mechanism 2, a transmission mechanism 3, and a check valve 4.
Referring to fig. 1 and 2, the casing 1 has a cylindrical sealed cavity, the casing 1 has a box end with a box 111, and a perforation 121 communicating with the cavity is formed on a side wall of the casing 1.
Referring to fig. 1 and 2, the turbine mechanism 2 includes a turbofan 21, the turbofan 21 includes a blade 211, the blade 211 is disposed in the cavity and divides the cavity into an upper cavity and a lower cavity, the upper cavity is communicated with the female buckle end, and the lower cavity is communicated with the perforation 121.
Referring to fig. 1 to 3, the transmission mechanism 3 includes a driving sleeve 31, a frequency modulation gear body 32 and a driven sleeve 33, the driving sleeve 31 is disposed in the lower cavity and is coaxially disposed with the housing 1, the driving sleeve 31 is rotatably connected with the housing 1, one end of the driving sleeve 31 is fixedly connected with the blade 211, the frequency modulation gear body 32 is connected with the driving sleeve 31, the driven sleeve 33 is connected with the frequency modulation gear body 32, the driven sleeve 33 is disposed in the housing 1 and is rotatably connected with the housing 1, an outer side wall of the driven sleeve 33 is attached to an inner side wall of the housing 1, an inner hole 331 matched with the perforation 121 is formed in the driven sleeve 33, and when the driven sleeve 33 is rotated to a preset position, the inner hole 331 is communicated with the perforation 121.
Referring to fig. 1-4, the check valve 4 is disposed in the cavity and is used for making the fluid in the cavity flow in one direction.
When the turbine-driven circumferential sliding sleeve type pulse generating tool provided by the invention is used, firstly, the turbine-driven circumferential sliding sleeve type pulse generating tool is put into a well section to be fractured along a drill rod, then, high-pressure fracturing fluid is injected into the shell 1 from the female buckle 111, the fracturing fluid firstly enters the upper cavity and then enters the lower cavity after passing through the turbofan 21, under the action of the check valve 4, the fracturing fluid only enters the lower cavity and cannot flow backwards, therefore, the pressure of the fracturing fluid in the lower cavity is gradually increased, meanwhile, when the fracturing fluid passes through the turbofan 21, the fracturing fluid drives the blades 211 to rotate, the blades 211 drive the driving sleeve 31 to rotate, the driving sleeve 31 drives the driven sleeve 33 to rotate after passing through the frequency modulation gear body 32, and when the driven sleeve 33 rotates to a preset position, the inner hole 331 on the driven sleeve 33 is communicated with the perforation 121, the high-pressure fracturing fluid in the lower cavity is ejected out after passing through the inner hole 331 and the perforation 121 so as to fracture the reservoir stratum. Because this device adopts drive sleeve 31 as transmission assembly, the in-process that the fracturing fluid flowed in casing 1 only can be through difficult turbofan 21 and the check valve 4 that takes place to block up, consequently, this device is difficult for taking place to block up in the use, and stability is good.
Further, referring to fig. 2, the housing 1 includes a protective sleeve 11 and a lower cover 12, the female buckle 111 is disposed at one end of the protective sleeve 11, the lower cover 12 detachably covers the other end of the protective sleeve 11, and the perforation 121 is disposed on the lower cover 12. By dividing the housing 1 into a protective sleeve 11 and a lower cover 12, the assembly of the device is facilitated.
Further, referring to fig. 2 and fig. 6, the turbofan 21 further includes a rotating ring 212, the rotating ring 212 is fixedly connected to each of the blades 211, and the rotating ring 212 is fixedly connected to the driving sleeve 31.
Preferably, referring to fig. 2, 3 and 6, the turbine mechanism 2 further includes a bearing 22, the bearing 22 is disposed coaxially with the housing 1, an outer ring of the bearing 22 is fixed on the housing 1, and an inner ring of the bearing 22 is fixed on the rotating ring 212. The rotational connection of the rotary ring 212 to the housing 1 is realized by means of the bearing 22.
Specifically, referring to fig. 2, fig. 3 and fig. 6, the number of the blades 211 of the turbofan 21 is six, each turbofan 21 is disposed in the cavity along the length direction of the housing 1, and the blades 211 of two adjacent turbofan 21 are fixedly connected.
Specifically, referring to fig. 2 and 3, a first ring gear 311 is fixedly disposed at one end of the driving sleeve 31 close to the frequency modulation gear body 32. A second ring gear 332 is fixedly arranged at one end of the driven sleeve 33 close to the frequency modulation gear body 32. FM gear body 32 includes fixed sleeve 321 and FM gear 322, place in fixed sleeve 321 in the casing 1 and with casing 1 fixed connection, FM gear 322 has a plurality of and lacks tooth portion 3221, FM gear 322 rotate connect in on the fixed sleeve 321, FM gear 322 with first ring gear 311 reaches second ring gear 332 all meshes. When the fracturing fluid injection device is used, the driving sleeve 31 drives the frequency modulation gear 322 to rotate, the frequency modulation gear 322 drives the driven sleeve 33 to rotate, and the tooth missing portion 3221 of the frequency modulation gear 322 does not rotate when passing through the second gear ring 332, so that the rotating speed of the driven sleeve 33 is lower than that of the driving sleeve 31, the pressure accumulation time of fracturing fluid in the shell 1 can be prolonged, and the impact force of the injected fracturing fluid can be improved.
Specifically, referring to fig. 2 and 3, the number of the fm gears 322 is two, and the two fm gears 322 are symmetrically arranged on the fixing sleeve 321.
Specifically, referring to fig. 2 to 5, the driving sleeve 31 is connected to the outlet of the turbofan 21 in a sealing manner. Check valve 4 includes non return sleeve 41, non return valve body 42 and non return spring 43, place in non return sleeve 41 in the drive sleeve 31 and with the coaxial setting of drive sleeve 31, non return sleeve 41's lateral wall with the fixed laminating of drive sleeve 31's inside wall, non return sleeve 41 lower extreme opening, one-way runner 411 has been seted up on non return sleeve 41's the up end, non return valve body 42 is used for the shutoff one-way runner 411, non return spring 43's one end with non return valve body 42 fixed connection, non return spring 43's the other end with non return sleeve 41 fixed connection. When using, when fracturing fluid flows into casing 1 in, the fracturing fluid produces the pressure that acts on check valve body 42, make check spring 43 shrink, thereby check valve body 42 and one-way runner 411 separate, fracturing fluid passes through one-way runner 411 and gets into the lower extreme of casing 1, when the pressure balance of check valve body 42 both sides, under the restoring force effect of check spring 43, check valve body 42 blocks one-way runner 411 again, consequently, only when the fracturing fluid of injecting into is higher than the pressure of the fracturing fluid of casing 1 lower extreme, check valve body 42 just can separate with one-way runner 411, thereby guarantee that the fracturing fluid of casing 1 can not take place the refluence.
Preferably, referring to fig. 2 and fig. 3, the turbine-driven circumferential sliding sleeve type pulse generating tool further includes a frequency adjusting mechanism 5, the frequency adjusting mechanism 5 includes a pressurizing piston 51 and a pressurizing spring 52, the pressurizing piston 51 is disposed in the lower cavity and slidably connected to an inner side wall of the housing 1, one end of the pressurizing spring 52 is fixedly connected to the pressurizing piston 51, and the other end of the pressurizing spring 52 is fixedly connected to the housing 1. The frequency modulation mechanism 5 is used for buffering the pressure of the fracturing fluid in the shell 1, and when the pressure of the fracturing fluid in the shell 1 is suddenly increased, the pressurizing spring 52 is contracted, so that the rising speed of the pressure of the fracturing fluid can be delayed, the impact on the shell 1 is reduced, and the service life of the shell 1 is prolonged.
For a better understanding of the present invention, the operation of the turbine driving circumferential sliding sleeve type pulse generating tool provided by the present invention is described in detail below with reference to fig. 1 to 6: when the fracturing fluid injection device is used, firstly, the turbine-driven circumferential sliding sleeve type pulse generation tool is put into a well section to be fractured through the fracturing string, then, high-pressure fracturing fluid is injected into the shell 1 from the female buckle 111, the fracturing fluid firstly enters the upper cavity and then enters the lower cavity through the turbofan 21, under the action of the check valve 4, the fracturing fluid can only enter the lower cavity but cannot flow backwards, therefore, the pressure of the fracturing fluid in the lower cavity is gradually increased, meanwhile, when the fracturing fluid passes through the turbofan 21, the fracturing fluid drives the blades 211 to rotate, the blades 211 drive the rotating ring 212 to rotate, the rotating ring 212 drives the driving sleeve 31 to rotate, the driving sleeve 31 drives the frequency modulation gear 322 to rotate, the frequency modulation gear 322 drives the driven sleeve 33 to rotate, when the driven sleeve 33 rotates to a preset position, the inner hole 331 on the driven sleeve 33 is communicated with the perforation 121, the high-pressure fracturing fluid in the lower cavity is ejected after passing through the inner holes 331 and the perforation 121, to fracture the reservoir.
In summary, the driving sleeve 31 is adopted as the transmission assembly, so that the fracturing fluid only passes through the turbofan 21 and the check valve 4 which are not easy to block in the flowing process of the fracturing fluid in the shell 1, and therefore, the device is not easy to block in the using process and has good stability; meanwhile, the sliding sleeve type staggered sealing mode of the driven sleeve 33 and the shell 1 is adopted, the sealing reliability is good, and the pressurization effect is good.
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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (8)
1. A turbine-driven circumferential sliding sleeve pulse generating tool, comprising: the device comprises a shell, a turbine mechanism, a transmission mechanism and a check valve;
the casing is a hollow cavity, the casing is provided with a female buckle end processed with a female buckle, and a perforation communicated with the cavity is formed in the side wall of the casing;
the turbine mechanism comprises a turbofan, the turbofan comprises a blade, the blade is arranged in the cavity and divides the cavity into an upper cavity and a lower cavity, the upper cavity is communicated with the female buckle end, and the lower cavity is communicated with the perforation;
the transmission mechanism comprises a driving sleeve, a frequency modulation gear body and a driven sleeve, the driving sleeve is arranged in the cavity and is coaxial with the shell, one end of the driving sleeve is fixedly connected with the blade, the frequency modulation gear body is connected with the driving sleeve, and the driven sleeve is connected with the frequency modulation gear body; the driven sleeve is positioned in the shell and is rotationally connected with the shell, the outer side wall of the driven sleeve is attached to the inner side wall of the shell, an inner hole matched with the perforation is formed in the driven sleeve, and when the driven sleeve is rotated to a preset position, the inner hole is communicated with the perforation;
the check valve is arranged in the cavity of the shell and is used for preventing high-pressure fluid from flowing backwards;
one end of the driving sleeve, which is close to the frequency modulation gear body, is fixedly provided with a first gear ring;
a second gear ring is fixedly arranged at one end of the driven sleeve close to the frequency modulation gear body;
the frequency modulation gear body is including fixed sleeve and frequency modulation gear, place in the fixed sleeve in the casing and with casing fixed connection, frequency modulation gear has a plurality of and lacks tooth portion, frequency modulation gear rotate connect in on the fixed sleeve, frequency modulation gear with first ring gear reaches the equal meshing of second ring gear.
2. The turbine-driven circumferential sliding sleeve type pulse generating tool as claimed in claim 1, wherein said housing comprises a protective sleeve and a lower cover, said female fastener is disposed at one end of said protective sleeve, said lower cover is detachably fitted to the other end of said protective sleeve, and said perforation is disposed on said lower cover.
3. The turbine drive circumferential slide sleeve pulse generating tool of claim 1, wherein said turbofan further comprises a rotating ring fixedly attached to each of said blades, said rotating ring fixedly attached to said drive sleeve.
4. The turbine-driven circumferential sliding sleeve type pulse generating tool according to claim 3, wherein the turbine mechanism further comprises a bearing, the bearing is arranged coaxially with the housing, an outer ring of the bearing is fixed on the housing, and an inner ring of the bearing is fixed on the rotating ring.
5. The turbine-driven circumferential sliding sleeve type pulse generating tool according to claim 1, wherein the number of the turbofan is six, each turbofan is arranged in the cavity along the length direction of the housing, and blades of two adjacent turbofan are fixedly connected.
6. The turbine drive circumferential slide sleeve pulse generating tool of claim 1, wherein the number of said frequency modulated gears is two, and two of said frequency modulated gears are symmetrically disposed on said fixed sleeve.
7. The turbine drive circumferential slide sleeve type pulse generating tool according to claim 1, wherein the drive sleeve is sealingly connected with an outlet of the turbofan;
the check valve includes non return sleeve, non return valve body and non return spring, place in the non return sleeve in the drive sleeve and with the coaxial setting of drive sleeve, non return telescopic lateral wall with the fixed laminating of drive sleeve's inside wall, non return sleeve lower extreme opening, one-way runner has been seted up on the telescopic up end of non return, the non return valve body is used for the shutoff one-way runner, the one end of non return spring with non return valve body fixed connection, the other end of non return spring with non return sleeve fixed connection.
8. The turbine-driven circumferential sliding sleeve type pulse generating tool according to claim 1, further comprising a frequency adjusting mechanism, wherein the frequency adjusting mechanism comprises a pressurizing piston and a pressurizing spring, the pressurizing piston is disposed in the lower cavity and slidably connected to an inner side wall of the housing, one end of the pressurizing spring is fixedly connected to the pressurizing piston, and the other end of the pressurizing spring is fixedly connected to the housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010898448.5A CN112031726B (en) | 2020-08-31 | 2020-08-31 | Turbine drive circumference sliding sleeve formula pulse generation instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010898448.5A CN112031726B (en) | 2020-08-31 | 2020-08-31 | Turbine drive circumference sliding sleeve formula pulse generation instrument |
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| CN112031726A CN112031726A (en) | 2020-12-04 |
| CN112031726B true CN112031726B (en) | 2022-07-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112647915A (en) * | 2020-12-21 | 2021-04-13 | 长江大学 | Screw-driven piston type hydraulic pulse excitation tool |
| CN112796723B (en) * | 2020-12-24 | 2023-01-31 | 长江大学 | Pulse generating device |
| CN112814636B (en) * | 2020-12-24 | 2023-02-03 | 荆州市威克石油机械设备有限公司 | Low-frequency fracturing device |
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| SE445755B (en) * | 1984-11-28 | 1986-07-14 | Arjeng Elektromekan | BACK VALVE ON DRILL Cuffs |
| CA2686737C (en) * | 2007-05-03 | 2015-10-06 | David John Kusko | Flow hydraulic amplification for a pulsing, fracturing, and drilling (pfd) device |
| CN106351814B (en) * | 2016-10-14 | 2017-08-25 | 海斯比得（武汉）石油科技有限公司 | Underground booster, downhole pressure increasing fracturing tool and downhole pressure increasing fracturing process |
| CN110130855A (en) * | 2019-07-02 | 2019-08-16 | 陕西延长石油(集团)有限责任公司研究院 | A kind of switchable sliding sleeve of pressure break full-bore and its application method |
| CN116792068A (en) * | 2019-09-20 | 2023-09-22 | 烟台杰瑞石油装备技术有限公司 | Turbine fracturing equipment |
| CN211201919U (en) * | 2019-09-20 | 2020-08-07 | 烟台杰瑞石油装备技术有限公司 | Turbine fracturing equipment |
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| 水力喷射压裂的机理分析与应用;夏富国等;《国外油田工程》;20101120;第26卷(第11期);16-19 * |
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