CN103485720A - Hypothermal splitting assisted drilling machine - Google Patents
Hypothermal splitting assisted drilling machine Download PDFInfo
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- CN103485720A CN103485720A CN201310486270.3A CN201310486270A CN103485720A CN 103485720 A CN103485720 A CN 103485720A CN 201310486270 A CN201310486270 A CN 201310486270A CN 103485720 A CN103485720 A CN 103485720A
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- drill bit
- reative cell
- drilling rod
- drilling
- drilling head
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Abstract
The invention discloses a hypothermal splitting assisted drilling machine, and provides a deep geothermal drilling machine which is based on the principle that rock is split automatically by means of a hypothermal solution. The hypothermal splitting assisted drilling machine comprises a drilling head, a drilling head bench and a drill rod; the drilling head and the drilling head bench are located at the lower end of the drill rod; the drilling head is mounted on the drilling head bench; the drilling head, the drill rod and the drilling head bench are of hollow structures; a reaction chamber is arranged in the drilling head bench; a flame jet opening is formed in the surface of the drilling head; the flame jet opening is communicated with the reaction chamber; a pipeline is arranged in the drill rod and communicated with the reaction chamber. According to the hypothermal splitting assisted drilling machine, the rock stratum cracks due to an overhigh temperature gradient by virtue of the characteristics of supercritical water; as a result, the rock stratum is cracked, and the rock fragments are brought out of a borehole by virtue of the Archimedes screw principle; the hypothermal splitting assisted drilling machine provided by the invention is capable of quickly drilling through the rock stratum having extremely high hardness, and therefore, time and economic losses caused by frequent replacement of the drilling head are avoided.
Description
Technical field
The present invention relates to the probing field, be specially a kind of rig for the deep geothermal heat probing.
Background technology
Along with social development, the environment-friendly high-efficiency utilization of natural energy resource becomes the new focus of society, underground heat because it is widely distributed, energy is high, it is simple and convenient to exploit, use the advantage such as pollution-free to become the rising star of energy industry.Geothermal energy has characteristics: contain deeplyer, potentiality to be exploited is just larger.Yet, if adopt traditional rotary drilling technology mining geothermal energy, along with the increase of the geothermal well degree of depth, cost can be index and go up.
While being drilled according to traditional drill bit, when drill bit runs into underground hard, dry rock stratum, tend to motionless situation occur boring, this can cause great friction consumption to drill bit, drill bit will soon be damaged, and some drilling projects can be because this rock stratum can't penetrate as abandoning.These rock stratum are usually located at underground 3 kilometers even darker positions, are exactly the geothermal energy resources that extremely enrich below rock stratum.
Existing drilling technique is all to adopt cold drill bit hard friction to penetrate rock stratum, during in the face of the rock stratum of much higher hard, often can't creep into, only have the higher drill bit of the hardness of replacing again to creep into, but, for some rock stratum, adopt diamond drilling that no small difficulty is also arranged.
Summary of the invention
Technical problem solved by the invention is to provide a kind of katathermal solution division auxiliary rig, to solve the shortcoming in the above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
The auxiliary rig of katathermal solution division, be a kind of rig that utilizes katathermal solution to make this principle of rock autotomize, comprise drill bit, drill bit platform and drilling rod, described drill bit and drill bit platform are positioned at the lower end of drilling rod, drill bit is arranged on the drill bit platform, described drill bit, drilling rod and drill bit platform are hollow structure, in the drill bit platform, are provided with reative cell, are provided with heater in reative cell, bit face is provided with the bright eruption mouth, described bright eruption mouth is communicated with reative cell, is provided with pipeline in drilling rod, with reative cell, is communicated with.
The hollow structure of described drilling rod is double-layer sleeve structure, the inner layer pipe and the outer layer pipe that transports oxygen that comprise the mixture of transport of water and fuel, the mixture of described water and fuel mixes in reative cell with oxygen, the overcritical submerged combustion that fuel and oxygen form at water.
The hollow structure of described drilling rod and the junction of reative cell are provided with one-way cock, anti-backflow when guaranteeing the reative cell inner high voltage.
Described heater is the hot spot ignition resistance, be arranged on the reative cell inside wall, can be heated reative cell, the junction of reative cell and drill bit is provided with pressure-regulating valve, for the pressure in reative cell is regulated, keep the high temperature and high pressure environment in reative cell.
Described bright eruption mouth has several, is evenly distributed on the surface of drill bit, is provided with removable carbide button on described bit face, and carbide button is evenly distributed on bit face.
The appearance of described drilling rod is provided with the helical structure that forms Archimedian screw with the borehole wall, takes the rubble at drill bit place out of drilling well.
The material that the reative cell of described drill bit platform and drill bit adopt is to add the alloy of carbide and nitride with Metal Substrate, wherein Metal Substrate is one or more alloy in chromium, nickel, tungsten, tantalum, rhenium, hafnium, cobalt, titanium, carbide is a kind of in tungsten carbide, ramet, niobium carbide, nitride is a kind of in tungsten nitride, tantalum nitride, carbide and nitride can effectively be resisted the corrosion of supercritical water to material, integral material hardness is high, high temperature resistance, corrosion-resistant, resisting strong impact, guarantee that drill bit can bear high temperature, guarantee the high temperature and high pressure environment of reative cell.
Upper end at described drilling rod, be provided with aboveground facility, comprise automatically controlled part, power section and batching part, the batching part is proportioning fuel, oxygen G&W according to actual needs, power section drives the rotation of drilling rod, and feedwater, fuel and oxygen provides necessary pressure, automatically controlled part is carried out regulation and control to integral body.
In the present invention, adopt supercritical water to be used as solvent, supercritical water is when the environment of 374.3 ℃ and 22.05MPa, the density of the water expanded because of high temperature is suitable with the density of the steam compressed because of high pressure, water under a kind of special state formed, water does not now have gaseous state and liquid phase difference, has extremely strong assisted oxidation ability and solvability, can mix with arbitrary proportion with nonpolarity gases such as nitrogen, oxygen, can mix with materials such as ethanol; Many materials can burn therein, the flame of emerging; Mix with oxygen and hydrogen peroxide, the chain reaction of oxidation can occur, there is extremely strong oxidisability etc.
In the present invention, selected fuel is chosen as ethanol, ethanol and oxygen are under the state of supercritical water, in 450 ℃ of spontaneous combustions, emit a large amount of heat, to form more supercritical water by HTHP from the water of hollow structure simultaneously, the supercritical water of high-temperature high-pressure state coordinates the flame of fuel spontaneous combustion, go out drill bit in reative cell, impact is on rock stratum, heated up rapidly in the surface of rock stratum, and then make whole rock stratum produce obvious temperature gradient, now rock layer surface can be broken because of thermal expansion, form a large amount of millimetre-sized discoid cargs, drill bit these in tentatively cracked rock stratum probing can be easy to many, the fragment of rock also can be sent to along with fluid overhead nearer place under the drive of Archimedian screw.The temperature gradient of rock is larger, and the speed of exploitation probing will be faster.
Beneficial effect: in the present invention, utilize the characteristic of supercritical water to make rock stratum excessive and break by temperature gradient, crack the hardness of rock stratum, utilize the principle of Archimedian screw, take carg out of drilling well, the present invention can bore the rock stratum that hardness is very high fast, avoids frequent time and economic loss that more bit change brings.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: drilling rod 1, one-way cock 2, drill bit platform 3, reative cell 4, pressure-regulating valve 5, drill bit 6, bright eruption mouth 7, carbide button 8, hot spot ignition resistance 9.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Assist the structure of drill bit 6, drill bit platform 3 and the drilling rod 1 of rig referring to the katathermal solution division of Fig. 1, described drill bit 6 and drill bit platform 3 are positioned at the lower end of drilling rod 1, drill bit 6 is arranged on drill bit platform 3, described drill bit 6, drilling rod 1 and drill bit platform 3 are hollow structure, be provided with reative cell 4 in drill bit platform 3, drill bit 6 surfaces are provided with bright eruption mouth 7, and described bright eruption mouth 7 is communicated with reative cell 4, be provided with pipeline in drilling rod 1, be communicated with reative cell 4; The junction of the hollow pipeline of described drilling rod 1 and reative cell 4 is provided with one-way cock 2; Be provided with hot spot ignition resistance 9 in described reative cell 4, reative cell 4 is provided with pressure-regulating valve 5 with the junction of drill bit 6;
The hollow pipeline of described drilling rod 1 is double-layer sleeve structure, the mixture of inner layer pipe transport of water and fuel, and outer layer pipe transportation oxygen, the mixture of described water and fuel and oxygen mix reative cell 4 is interior, and fuel and oxygen are at the overcritical submerged combustion of water formation.
Described bright eruption mouth 7 has several, is evenly distributed on the surface of drill bit 6, and described drill bit is provided with removable carbide button 8 on 6 surfaces, and carbide button 8 is evenly distributed on drill bit 6 surfaces.
The appearance of described drilling rod 1 is provided with the helical structure that forms Archimedian screw with the borehole wall, takes the rubble at drill bit place out of drilling well.
Upper end at described drilling rod, be provided with aboveground facility, comprise automatically controlled part, power section and batching part, the batching part is proportioning fuel, oxygen G&W according to actual needs, power section drives the rotation of drilling rod, and feedwater, fuel and oxygen provides necessary pressure, automatically controlled part is carried out regulation and control to integral body.
The present invention is when probing, drill bit 6, drill bit platform 3 and drilling rod 1 rotate under the drive of power section, the spontaneous combustion under the environment of supercritical water of the fuel of HTHP and oxygen, emit a large amount of heat, to form more supercritical water by HTHP from the water of hollow pipeline simultaneously, the supercritical water of high-temperature high-pressure state coordinates the flame of fuel spontaneous combustion, go out drill bit 6 in reative cell 4, impact is on rock stratum, the rock of rock layer surface is broken by excessive temperature gradient, now drill bit 6 can penetrate this part rock stratum easily, repeat endlessly this process, can bore fast the rock stratum that hardness is very high.
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. rig is assisted in the katathermal solution division, comprise drill bit, drill bit platform and drilling rod, described drill bit and drill bit platform are positioned at the lower end of drilling rod, and drill bit is arranged on the drill bit platform, it is characterized in that, described drill bit, drilling rod and drill bit platform are hollow structure, in the drill bit platform, are provided with reative cell, are provided with heater in reative cell, bit face is provided with the bright eruption mouth, described bright eruption mouth is communicated with reative cell, is provided with pipeline in drilling rod, with reative cell, is communicated with.
2. the auxiliary rig of katathermal solution division according to claim 1, is characterized in that, the hollow structure of described drilling rod is double-layer sleeve structure, comprises the inner layer pipe and the outer layer pipe that transports oxygen of the mixture of transport of water and fuel.
3. the auxiliary rig of katathermal solution division according to claim 1, is characterized in that, the hollow structure of described drilling rod and the junction of reative cell are provided with one-way cock.
4. the auxiliary rig of katathermal solution division according to claim 1, is characterized in that, described heater is the hot spot ignition resistance, is arranged on the reative cell inside wall.
5. the auxiliary rig of katathermal solution division according to claim 1, is characterized in that, the junction of described reative cell and drill bit is provided with pressure-regulating valve.
6. the auxiliary rig of katathermal solution division according to claim 1, is characterized in that, described bright eruption mouth has several, is evenly distributed on the surface of drill bit, is provided with removable carbide button on described bit face, and carbide button is evenly distributed on bit face.
7. the auxiliary rig of katathermal solution division according to claim 1, is characterized in that, the appearance of described drilling rod is provided with the helical structure that forms Archimedian screw with the borehole wall.
8. the auxiliary rig of katathermal solution division according to claim 1, is characterized in that, the material that the reative cell of described drill bit platform and drill bit adopt is to add the alloy of carbide and nitride with Metal Substrate.
9. rig is assisted in katathermal solution division according to claim 8, it is characterized in that, described Metal Substrate is one or more alloy in chromium, nickel, tungsten, tantalum, rhenium, hafnium, cobalt, titanium, described carbide is a kind of in tungsten carbide, ramet, niobium carbide, and described nitride is a kind of in tungsten nitride, tantalum nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486270.3A CN103485720A (en) | 2013-10-17 | 2013-10-17 | Hypothermal splitting assisted drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486270.3A CN103485720A (en) | 2013-10-17 | 2013-10-17 | Hypothermal splitting assisted drilling machine |
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| Publication Number | Publication Date |
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| CN103485720A true CN103485720A (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310486270.3A Pending CN103485720A (en) | 2013-10-17 | 2013-10-17 | Hypothermal splitting assisted drilling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152241A (en) * | 2017-07-07 | 2017-09-12 | 中国石油天然气集团公司 | Drag bit device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1506057A1 (en) * | 1987-12-25 | 1989-09-07 | Специальное конструкторское бюро самоходного горного оборудования | Apparatus for thermal breaking of rock |
| CN101029560A (en) * | 2007-03-27 | 2007-09-05 | 中国石油大学(华东) | Wellbottom rock-fragment abrasive jet-flowing drilling tool |
| CN101063401A (en) * | 2006-04-28 | 2007-10-31 | 靳宇男 | Internal combustion fluid jet boring device |
| CN201705207U (en) * | 2010-07-07 | 2011-01-12 | 龚智勇 | High temperature and high pressure air injection rock breaking well drilling device |
| RU2426856C2 (en) * | 2009-09-30 | 2011-08-20 | Салават Адегамович Латыпов | Device for cumulative well drilling |
-
2013
- 2013-10-17 CN CN201310486270.3A patent/CN103485720A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1506057A1 (en) * | 1987-12-25 | 1989-09-07 | Специальное конструкторское бюро самоходного горного оборудования | Apparatus for thermal breaking of rock |
| CN101063401A (en) * | 2006-04-28 | 2007-10-31 | 靳宇男 | Internal combustion fluid jet boring device |
| CN101029560A (en) * | 2007-03-27 | 2007-09-05 | 中国石油大学(华东) | Wellbottom rock-fragment abrasive jet-flowing drilling tool |
| RU2426856C2 (en) * | 2009-09-30 | 2011-08-20 | Салават Адегамович Латыпов | Device for cumulative well drilling |
| CN201705207U (en) * | 2010-07-07 | 2011-01-12 | 龚智勇 | High temperature and high pressure air injection rock breaking well drilling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152241A (en) * | 2017-07-07 | 2017-09-12 | 中国石油天然气集团公司 | Drag bit device |
| CN107152241B (en) * | 2017-07-07 | 2023-09-12 | 中国石油天然气集团公司 | Thermal jet drag bit device |
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Application publication date: 20140101 |