CN104863506A - Jet temperature fracturing device - Google Patents
Jet temperature fracturing device Download PDFInfo
- Publication number
- CN104863506A CN104863506A CN201510187789.0A CN201510187789A CN104863506A CN 104863506 A CN104863506 A CN 104863506A CN 201510187789 A CN201510187789 A CN 201510187789A CN 104863506 A CN104863506 A CN 104863506A
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressurized container
- fluid
- loop controller
- rock
- 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.)
- Granted
Links
- 239000011435 rock Substances 0.000 claims abstract description 46
- 238000005553 drilling Methods 0.000 claims abstract description 22
- 238000003860 storage Methods 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 46
- 230000008646 thermal stress Effects 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- 230000005680 Thomson effect Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 102000016938 Catalase Human genes 0.000 description 3
- 108010053835 Catalase Proteins 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000005406 washing 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C45/00—Methods of hydraulic mining; Hydraulic monitors
- E21C45/02—Means for generating pulsating fluid jets
- E21C45/06—Means for generating pulsating fluid jets by use of compressed gases
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of mining, well drilling and rock breaking, and relates to a jet temperature fracturing device. A booster pump and a storage tank are placed at the upper part of a body well, and are fixedly connected with the underground part through a drill rod; a pressurized container, a turbine and an electric generator are arranged inside the underground drill rod; a heater is fixedly arranged on the inner wall of the pressurized container, and the top of the pressurized container is connected with the drill rod through a one-way valve; a sensor is fixedly arranged on the inner wall of the pressurized container and connected with a closed-loop controller through electric information; a high-pressure electromagnetic valve is fixedly placed at the bottom of the pressurized container and connected with the closed-loop controller through electric information; the electric generator and the closed-loop controller are placed outside the pressurized container; a throttle valve is placed at the upper part of the well body to realize control over the bottom hole pressure; a drill bit is placed at the lower part of the high pressure electromagnetic valve in a detachable manner. The jet temperature fracturing device is safe in structure, reliable in principle, economic and low in cost; the method is easy to realize, and the application environment is friendly.
Description
Technical field:
The invention belongs to mining and well drilling and rock crushing technical field, the thermal stresses related to by utilizing Jetstream fluid to produce is carried out directly or the device of auxiliary rock, particularly a kind of jet temperature fracturing device.
Background technology:
High-pressure water jet breaks that rock threshold pressure is low, efficiency of breaking rock is high, threshold pressure is about the 60%-70% of mechanical rock breaking, thus be widely used in mining, well drilling and rock crushing, but also there are some problems at present in high-pressure water jet breaking technique for rock, main cause is that high-pressure water jet is high to ground booster pump performance, fluid line requirement of strength, thus equipment manufacturing cost high, easily there is potential safety hazard.Along with going deep into of research, supercritical carbon dioxide is also used as Jetstream fluid, external experimental study proves that the direct jet of supercritical carbon dioxide breaks 3.3 times that rock speed is water jet, for its reason, now studies have found that, the compressible gases such as such as carbon dioxide can produce large temperature fluctuation when spraying, and then produce large thermal stresses.Research finds, the rock of confined pressure 20MPa is under the synthermal carbon dioxide jet of 15MPa, jet temperature after the match stress is about jet pressure more than 2 times of stress after the match, illustrate that thermal stresses is the Main Function that supercritical carbon dioxide jet breaks rock, illustrate that utilizing thermal stresses to carry out brokenly rock is a kind of effective mode simultaneously.
Summary of the invention:
The shortcoming that the present invention exists to overcome prior art, seek design and provide a kind of jet temperature fracturing device, surface fluids is converted into high-pressure spray thus produces and utilize thermal stresses to carry out the fragmentation of rock by this device in work progress; This apparatus structure is simple, and principle is reliable, and financial cost is low, and method is easy to realize, and applied environment is friendly.
To achieve these goals, the jet temperature fracturing device agent structure that the present invention relates to comprises booster pump, storage tank, drilling rod, turbine, generator, sensor, closed loop controller, drill bit, high-pressure solenoid valve, pressurized container, heater, one way valve and choke valve; Booster pump and storage tank are positioned over above well body, and are fixedly connected with underground part by drilling rod, form original power source and fluid source; The drilling rod inside of down-hole is shaped with pressurized container, turbine and generator; The inwall of pressurized container is fixedly shaped with heater, and top is connected with drilling rod by one way valve; Sensor fixed placement ceases with closed loop controller telecommunications and is connected, for detecting the temperature and pressure of pressurized container inner fluid on the inwall of pressurized container; High-pressure solenoid valve fixed placement ceases with closed loop controller telecommunications in the bottom of pressurized container and is connected, and realizes the control of convection cell shot; Generator and closed loop controller are placed on pressurized container outside; Choke valve is placed on the control realized above well body bottom pressure; Drill bit detachable is placed on the below of high-pressure solenoid valve, for mechanical rock breaking, thus realizes the fracturing to rock.
During plant running of the present invention, the fluid in storage tank enters down-hole by drilling rod again after booster pump supercharging, and fluid is through turbine and turbine is rotated, turbine drive electrical generators generates electricity, because initial pressure is low in pressurized container, one way valve is opened under inside and outside differential pressure, and fluid enters pressurized container; Heater heats the fluid entered, and makes fluid become compressible high-pressure gaseous from low-pressure liquid; Sensor temperature signal and pressure signal transmission to closed loop controller, when pressure reaches preset value, closed loop controller control high-pressure solenoid valve is opened, compressible high-pressure gaseous ejection, form high pressure high temperature jet, formation rock is broken under the synergy of jet pressure and thermal stresses, or after nozzle, adds drill bit form mechanical waterpower combined-breaking rock; When the pressure in pressurized container reduces close with bottom pressure, one way valve is opened under inside and outside differential pressure, and closed loop controller controls high-pressure solenoid valve and closes, and so circulation forms HTHP pulsing jet; Fluid through down-hole turbine is then sprayed by followed nozzle; By throttle valve control bottom pressure.
The present invention compared with prior art, reduce jet and break the dependence of rock to jet pressure, add a kind of new jet and break rock principle and method, effectively efficiency of breaking rock can be improved on prior art basis, implementation is simple, reduce equipment cost to drop into, avoid hypertonia and damage fluid line, reduce potential safety hazard.
Accompanying drawing illustrates:
Fig. 1 is the jet temperature fracturing device agent structure principle schematic that the present invention relates to.
Fig. 2 is the jet temperature fracturing device agent structure principle schematic that embodiment 2 relates to.
Fig. 3 is the jet temperature fracturing device agent structure principle schematic that embodiment 3 relates to.
Detailed description of the invention:
Also be described further by reference to the accompanying drawings below by embodiment.
Embodiment 1:
The jet temperature fracturing device agent structure (as shown in Figure 1) that the present embodiment relates to comprises booster pump 1, storage tank 2, drilling rod 3, turbine 4, generator 5, sensor 6, closed loop controller 7, drill bit 8, high-pressure solenoid valve 9, pressurized container 10, heater 11, one way valve 12 and choke valve 14; Be connected with underground part by drilling rod 3 above booster pump 1 is positioned over well body with storage tank 2, form original power source and fluid source; The portion of the drilling rod 3 of down-hole is shaped with pressurized container 10, turbine 4 and generator 5; The inwall of pressurized container 10 is fixedly shaped with heater 11, and top is connected with drilling rod 3 by one way valve 12; Sensor 6 fixed placement ceases with closed loop controller 7 telecommunications and is connected, for detecting the temperature and pressure of pressurized container 10 inner fluid on the inwall of pressurized container 10; High-pressure solenoid valve 9 fixed placement ceases with closed loop controller 7 telecommunications in the bottom of pressurized container 10 and is connected, and realizes the control of convection cell shot; It is outside that generator 5 and closed loop controller 7 are placed on pressurized container 10; The electric control system of generator 5, heater 11, sensor 6, high-pressure solenoid valve 9 and closed loop controller 7 constituent apparatus; Choke valve 14 is placed on the control realized above well body bottom pressure; The dismountable below being placed on high-pressure solenoid valve 9 of drill bit 8, realizes mechanical rock breaking.
Described in the present embodiment during plant running, fluid (compressible fluid such as nitrogen or carbon dioxide) in storage tank 2 enters down-hole by drilling rod 3 after booster pump 1 supercharging, fluid makes turbine rotate through turbine 4, turbine 4 drive electrical generators 5 generates electricity, because initial pressure is low in pressurized container 10, one way valve 12 is opened under inside and outside differential pressure, and fluid enters pressurized container 10; Heater 11 heats the fluid entered, and makes fluid become compressible high-pressure gaseous from low-pressure liquid; Sensor 6 temperature signal and pressure signal transmission to closed loop controller 7, when pressure reaches preset value, closed loop controller 7 controls high-pressure solenoid valve 9 and opens, compressible high-pressure gaseous ejection, form high pressure high temperature jet, stratum 13 rock is broken under the synergy of jet pressure and thermal stresses, also can add drill bit 8 and form mechanical waterpower combined-breaking rock after nozzle; When the pressure in pressurized container 10 reduces close with bottom pressure, one way valve 12 is opened under inside and outside differential pressure, and closed loop controller 7 controls high-pressure solenoid valve 9 and closes, and so circulation forms HTHP pulsing jet; Fluid through down-hole turbine 4 is then sprayed by followed nozzle; By choke valve 14 control well bottom pressure.
Embodiment 2:
The present embodiment adopts structure as shown in Figure 2, fluid in fluid (compressible fluid such as nitrogen or carbon dioxide) storage tank 16 enters drilling rod enlarged diameter section 17 after booster pump 15 supercharging, in drilling rod enlarged diameter section 17, fluid temperature (F.T.) raises with formation temperature, then fluid enters drilling rod coil section 18, joule thomson effect is produced because flow diameter diminishes, fluid temperature (F.T.) reduces and the initiatively heat absorption from stratum 25 further, final fluid sprays through nozzle 19, now jet-core region temperature higher than stratum 21 rock near jet-core region temperature lower than stratum 21 rock, produce the thermal stresses under cold and hot change, it and jet pressure produce synergy and make catalase, also can add drill bit 20 and form mechanical waterpower combined-breaking rock after nozzle, bottom pressure can be controlled by choke valve 22, and then regulate the power of joule thomson effect.
The present embodiment sprays front fluid temperature (F.T.) by changing or utilizes fluid temperature variations in injection to produce the temperature difference of fluid and rock, and then utilize jet promptly to change rock interior Temperature Distribution to produce thermal stresses, finally make rock strength reduce or directly fragmentation.
The operating principle of the present embodiment is: first, the sharply change of temperature can make rock interior particle mutually pin down lower generation thermal stress in cold and hot contraction, coefficient of thermal expansion difference causes rock interior deformation simultaneously, thus make Original Cracks become expansion or produce newborn crackle, rock strength is reduced or fragmentation; Especially at the intersection that temperature raises and temperature reduces, because temperature gradient is very large, temperature Fracturing is stronger; The second, rock thermal transmittance is very low, temperature change mainly rock surface occur, this cause rock surface and internal modification inharmonious, even rock is homogeneous, also can produce large thermal stresses; 3rd, experimental studies have found that, at same temperature, the rate of heat addition is larger, and the thermal fracture effect of rock is larger, and Jetstream fluid washing away rapidly and to permeating in rock core inside, core temperature can be made to change rapidly in the short period of time rock surface; 4th, jet pressure and thermal stresses can act synergistically and make catalase.
Embodiment 3:
The present embodiment adopts structure as shown in Figure 3, fluid in fluid (compressible gas such as nitrogen or carbon dioxide) storage tank 24 enters drilling rod 25 after booster pump 23 supercharging, fluid temperature (F.T.) raises with formation temperature and raises, spray through nozzle 26 with the fluid of stratum equality of temperature, due to joule thomson effect, after fluid jet to stratum 28 rock surface, temperature sharply reduces, rock temperature skewness and produce thermal stresses, it and jet pressure produce synergy and make catalase, also can add drill bit 27 and form mechanical waterpower combined-breaking rock after nozzle, bottom pressure can be controlled by choke valve 29, and then regulate the power of joule thomson effect.
Claims (1)
1. a jet temperature fracturing device, is characterized in that agent structure comprises booster pump, storage tank, drilling rod, turbine, generator, sensor, closed loop controller, drill bit, high-pressure solenoid valve, pressurized container, heater, one way valve and choke valve; Booster pump and storage tank are positioned over above well body, and are fixedly connected with underground part by drilling rod, form original power source and fluid source; The drilling rod inside of down-hole is shaped with pressurized container, turbine and generator; The inwall of pressurized container is fixedly shaped with heater, and top is connected with drilling rod by one way valve; Sensor fixed placement ceases with closed loop controller telecommunications and is connected, for detecting the temperature and pressure of pressurized container inner fluid on the inwall of pressurized container; High-pressure solenoid valve fixed placement ceases with closed loop controller telecommunications in the bottom of pressurized container and is connected, and realizes the control of convection cell shot; Generator and closed loop controller are placed on pressurized container outside; Choke valve is placed on the control realized above well body bottom pressure; Drill bit detachable is placed on the below of high-pressure solenoid valve, for mechanical rock breaking, thus realizes the fracturing to rock; During operation, the fluid in storage tank enters down-hole by drilling rod again after booster pump supercharging, and fluid is through turbine and turbine is rotated, turbine drive electrical generators generates electricity, because initial pressure is low in pressurized container, one way valve is opened under inside and outside differential pressure, and fluid enters pressurized container; Heater heats the fluid entered, and makes fluid become compressible high-pressure gaseous from low-pressure liquid; Sensor temperature signal and pressure signal transmission to closed loop controller, when pressure reaches preset value, closed loop controller control high-pressure solenoid valve is opened, compressible high-pressure gaseous ejection, form high pressure high temperature jet, formation rock is broken under the synergy of jet pressure and thermal stresses, or after nozzle, adds drill bit form mechanical waterpower combined-breaking rock; When the pressure in pressurized container reduces close with bottom pressure, one way valve is opened under inside and outside differential pressure, and closed loop controller controls high-pressure solenoid valve and closes, and so circulation forms HTHP pulsing jet; Fluid through down-hole turbine is then sprayed by followed nozzle; By throttle valve control bottom pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187789.0A CN104863506B (en) | 2015-04-21 | 2015-04-21 | A kind of jet temperature fracturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187789.0A CN104863506B (en) | 2015-04-21 | 2015-04-21 | A kind of jet temperature fracturing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104863506A true CN104863506A (en) | 2015-08-26 |
| CN104863506B CN104863506B (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510187789.0A Expired - Fee Related CN104863506B (en) | 2015-04-21 | 2015-04-21 | A kind of jet temperature fracturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104863506B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197168A (en) * | 2016-06-30 | 2016-12-07 | 河南省煤炭科学研究院有限公司 | A kind of high-energy physics fracturing device |
| CN106368608A (en) * | 2016-08-26 | 2017-02-01 | 中国石油大学(北京) | Novel method for conducting hot dry rock drilling through liquid nitrogen |
| CN107059972A (en) * | 2017-04-20 | 2017-08-18 | 广东和发输变电安装有限公司 | A kind of hydraulic pressure Work machine people system and management method |
| WO2018054041A1 (en) * | 2016-09-23 | 2018-03-29 | 中国矿业大学 | Pulse jet flow and mechanical shock joint rock-breaking mechanism |
| CN108252653A (en) * | 2018-01-03 | 2018-07-06 | 中国石油大学(北京) | A kind of heating power jet stream underground reactor |
| CN109681178A (en) * | 2018-11-16 | 2019-04-26 | 中国海洋石油集团有限公司 | A kind of Y tubing string having water attack volume increase function and implementation method |
| CN114934747A (en) * | 2022-05-24 | 2022-08-23 | 中南大学 | Phase-change presplitting combined tunneling drill bit and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100999989A (en) * | 2006-01-13 | 2007-07-18 | 中国石油大学(北京) | High pressure water jet-flow deep penetrating perforating and its auxiliary crushing method and apparatus |
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| EP2682561A2 (en) * | 2012-07-06 | 2014-01-08 | Henk H. Jelsma | Multidirectional wellbore penetration system and methods of use |
| US20140124201A1 (en) * | 2012-11-02 | 2014-05-08 | Schlumberger Technology Corporation | Nozzle Selective Perforating Jet Assembly |
| CN103790516A (en) * | 2014-03-04 | 2014-05-14 | 中国石油大学(北京) | New well drilling method for efficient rock breaking by means of heating power jet flow |
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2015
- 2015-04-21 CN CN201510187789.0A patent/CN104863506B/en not_active Expired - Fee Related
Patent Citations (5)
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| CN100999989A (en) * | 2006-01-13 | 2007-07-18 | 中国石油大学(北京) | High pressure water jet-flow deep penetrating perforating and its auxiliary crushing method and apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197168A (en) * | 2016-06-30 | 2016-12-07 | 河南省煤炭科学研究院有限公司 | A kind of high-energy physics fracturing device |
| CN106368608A (en) * | 2016-08-26 | 2017-02-01 | 中国石油大学(北京) | Novel method for conducting hot dry rock drilling through liquid nitrogen |
| WO2018054041A1 (en) * | 2016-09-23 | 2018-03-29 | 中国矿业大学 | Pulse jet flow and mechanical shock joint rock-breaking mechanism |
| CN107059972A (en) * | 2017-04-20 | 2017-08-18 | 广东和发输变电安装有限公司 | A kind of hydraulic pressure Work machine people system and management method |
| CN108252653A (en) * | 2018-01-03 | 2018-07-06 | 中国石油大学(北京) | A kind of heating power jet stream underground reactor |
| CN108252653B (en) * | 2018-01-03 | 2019-04-23 | 中国石油大学(北京) | A kind of heating power jet stream underground reactor |
| CN109681178A (en) * | 2018-11-16 | 2019-04-26 | 中国海洋石油集团有限公司 | A kind of Y tubing string having water attack volume increase function and implementation method |
| CN114934747A (en) * | 2022-05-24 | 2022-08-23 | 中南大学 | Phase-change presplitting combined tunneling drill bit and method |
| CN114934747B (en) * | 2022-05-24 | 2023-03-14 | 中南大学 | Phase-change presplitting combined tunneling drill bit and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104863506B (en) | 2016-03-09 |
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