CN104790920A - Combustible ice extraction tubular column - Google Patents
Combustible ice extraction tubular column Download PDFInfo
- Publication number
- CN104790920A CN104790920A CN201510132910.XA CN201510132910A CN104790920A CN 104790920 A CN104790920 A CN 104790920A CN 201510132910 A CN201510132910 A CN 201510132910A CN 104790920 A CN104790920 A CN 104790920A
- Authority
- CN
- China
- Prior art keywords
- combustible ice
- movable block
- fixed
- blade
- wall
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- 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.)
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Classifications
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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
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
Abstract
The invention discloses a combustible ice extraction tubular column. The combustible ice extraction tubular column comprises a gas extraction pipe and a central rod arranged in the gas extraction pipe. A movable block with the circular section is fixed to the tail end of the central rod. A plurality of heating pipes connected in parallel are fixed to the outer wall of the movable block. Cables used for supplying power to the heating pipes are fixed to the inner wall of the gas extraction pipe. The combustible ice extraction tubular column further comprises a gathering cover with the arc-shaped cross section, and the gathering cover is fixed to the outer wall of the lower section of the gas extraction pipe. Combustible ice is decomposed step by step through the gathering cover and the movable block, heat stored in the combustible ice can only be slowly diffused, it is ensured that the combustible ice can not be decomposed too fast and overflow while methane extraction conducted by the extraction pipe is ceaseless, great influences caused to the environment when the combustible ice is exploited are avoided, and the aims of increasing the mining coefficient and improving the safety reliability are achieved.
Description
Technical field
The present invention relates to a kind of combustible ice exploitation field, specifically refer to that combustible ice extracts tubing string.
Background technology
Methane hydrate also claims " combustible ice ", is the caged crystallization that methane gas and hydrone are formed, the two is separated, just can obtain common natural gas.This outside looks like the same material of ice and is formed under high pressure low temperature condition, and that is, it is present in the permafrost of continental shelf subsea strata and terrestrial pole usually.
Current estimation in the world combustible ice reserves reaches 3 and takes advantage of 10 16 powers to be equivalent to the twice of the natural gas gross reserves verified now, if therefore combustible ice resource is utilized widely, will greatly alleviate the situation of Future anxiety.If but " combustible ice " is revealed in exploitation, a large amount of methane gas decomposes out, atmosphere is entered via seawater, larger than carbon dioxide 21 times of the greenhouse effect of methane, therefore once this leakage can not get controlling, Global Greenhouse Effect will increase rapidly, after atmosphere calefaction, ocean temperature also will increase, formation temperature rises, and this can cause the automatic classifying of seabed " combustible ice ", causes vicious circle.Therefore, exploitation must be controlled, and the methane gas discharged can effectively be collected.
Summary of the invention
The object of the present invention is to provide combustible ice to extract tubing string, facilitate the Fast Algorithm for Mining of combustible ice, reach the object improving production efficiency and safety reliability.
Object of the present invention is achieved through the following technical solutions:
Combustible ice extracts tubing string, comprise exhaust tube and be placed in the center-pole of exhaust tube inside, being fixed with cross section at the end of described center-pole is circular movable block, the outer wall of described movable block is fixed with the heating tube of multiple parallel connection, exhaust tube inwall is fixed the cable that promising heating tube is powered, also comprise the aggregation cover that cross section is circular arc, described aggregation cover is fixed on the outer wall of exhaust tube hypomere.When the present invention works, by the upper end of exhaust tube fixing seal at flammable iced storage, aggregation cover and movable block are then inserted in flammable iced storage, movable block starts to underground moving under the driving of center-pole, heating tube is started working simultaneously, and its heat produced is applied to rapidly on combustible ice, and combustible ice gets started decomposition and namely forms the methane of gaseous state and liquid water after being heated, the methane of gaseous state is discharged by exhaust tube, the heat collection that heating tube discharges then is diffused to the bottom of flammable iced storage by the aggregation cover be fixed on exhaust tube, the cross section of aggregation cover is circular arc simultaneously, namely by center-pole move down and the propelling of movable block makes the solid combustible ice in flammable iced storage form one with the maximum outside diameter size of movable block for internal diameter, and melt part with the tubular that the maximum inner diameter size of aggregation cover is external diameter, and this tubular thawing part is from top to bottom decomposed gradually, gaseous state after decomposition is finally slowly discharged in flammable iced storage by exhaust tube, by aggregation cover and movable block to the decomposition step by step of combustible ice, the heat that flammable iced storage is merely able to slowly spreads, make exhaust tube to methane extract uninterrupted ensure that combustible ice can not be too fast simultaneously be decomposed and overflow, to avoid exploitation combustible ice to cause larger impact to environment, reach the object improving coefficient of mining and safety reliability.
The middle part of described movable block and bottom outer wall are separately installed with multiple first blade, the second blade.In the process that center-pole moves down, when particularly flammable iced storage geographic location is complicated, the downward jacking of movable block can be subject to the obstruction impact of rock or other geologic structures, applicant is studying through long-time, the middle part of movable block and bottom outer wall are fixed with multiple first blade and the second blade, when the downstream rate of movable block reduces, starting extraneous driving arrangement makes center-pole start to turn in flammable iced storage inward turning, by the first blade and the second blade to the cutting of bar to ensure that the stable of movable block presses down, improve the extraction efficiency of methane.
Described movable block inside has cavity, and is filled with rock wool in cavity.The heat that multiple heating tubes fixing on the outer wall of movable block produce is applied directly on solid-state combustible ice, and movable block itself also can be heated and cause own temperature to raise, cavity is offered in movable block inside, and rock wool is filled in cavity, by the heat-blocking action of rock wool, the heat that heating tube is produced is applied to solid combustible on ice completely, reduces the thawing efficiency of thermal loss and then raising combustible ice.
The length of described first blade is greater than the length of described second blade.The scope of the first blade effect is greater than the sphere of action of the second blade, as preferably, the length of the first blade is set to the length being greater than the second blade, and then increase the contact lead of the first blade and combustible ice, and then prevent the heating tube on the inwall of tubular thawing part and movable block outer wall from colliding and causing it impaired, reach the object in extension fixture application life.
The present invention compared with prior art, has following advantage and beneficial effect:
1, the present invention by aggregation cover and movable block to the decomposition step by step of combustible ice, the heat that flammable iced storage is merely able to slowly spreads, make exhaust tube to methane extract uninterrupted ensure that combustible ice can not be too fast simultaneously be decomposed and overflow, to avoid exploitation combustible ice to cause larger impact to environment, reach the object improving coefficient of mining and safety reliability;
The heat that multiple heating tubes fixing on the outer wall of 2, movable block of the present invention produce is applied directly on solid-state combustible ice, and movable block itself also can be heated and cause own temperature to raise, cavity is offered in movable block inside, and rock wool is filled in cavity, by the heat-blocking action of rock wool, the heat that heating tube is produced is applied to solid combustible on ice completely, reduces the thawing efficiency of thermal loss and then raising combustible ice;
3, the length of the first blade is set to the length being greater than the second blade by the present invention, and then increase the contact lead of the first blade and combustible ice, and then prevent the heating tube on the inwall of tubular thawing part and movable block outer wall from colliding and causing it impaired, reach the object in extension fixture application life.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a application's part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Mark and corresponding component title in accompanying drawing:
1-exhaust tube, 2-center-pole, 3-aggregation cover, 4-movable block, 5-first blade, 6-second blade, 7-cavity, 8-heating tube.
Detailed description of the invention
Clearly understand for making the object, technical solutions and advantages of the present invention, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1, the present embodiment comprises exhaust tube 1 and is placed in the center-pole 2 of exhaust tube 1 inside, being fixed with cross section at the end of described center-pole 2 is circular movable block 4, the outer wall of described movable block 4 is fixed with the heating tube 8 of multiple parallel connection, exhaust tube 1 inwall is fixed the cable of promising heating tube 8 power supply, also comprise the aggregation cover 3 that cross section is circular arc, described aggregation cover 3 is fixed on the outer wall of exhaust tube 1 hypomere; The middle part and bottom outer wall of described movable block 4 are separately installed with multiple first blade 5, second blade 6; Described movable block 4 inside has cavity 7, and is filled with rock wool in cavity 7.
When the present invention works, by exhaust tube 1 fixing seal in the upper end of flammable iced storage, aggregation cover 3 and movable block 4 are then inserted in flammable iced storage, movable block 4 starts to underground moving under the driving of center-pole 2, heating tube 8 is started working simultaneously, and its heat produced is applied to rapidly on combustible ice, and combustible ice gets started decomposition and namely forms the methane of gaseous state and liquid water after being heated, the methane of gaseous state is discharged by exhaust tube 1, the heat collection that heating tube 8 discharges then is diffused to the bottom of flammable iced storage by the aggregation cover 3 be fixed on exhaust tube 1, the cross section of aggregation cover 3 is circular arc simultaneously, namely by center-pole 2 move down and the propelling of movable block 4 makes the solid combustible ice in flammable iced storage form one with the maximum outside diameter size of movable block 4 for internal diameter, and melt part with the tubular that the maximum inner diameter size of aggregation cover 3 is external diameter, and this tubular thawing part is from top to bottom decomposed gradually, gaseous state after decomposition is finally slowly discharged in flammable iced storage by exhaust tube 1, by the decomposition step by step of aggregation cover 3 and movable block 4 pairs of combustible ices, the heat that flammable iced storage is merely able to slowly spreads, make the exhaust tube 1 pair of methane extract uninterrupted ensure that combustible ice can not be too fast simultaneously be decomposed and overflow, to avoid exploitation combustible ice to cause larger impact to environment, reach the object improving coefficient of mining and safety reliability,
In the process that center-pole 2 moves down, when particularly flammable iced storage geographic location is complicated, the downward jacking of movable block 4 can be subject to the obstruction impact of rock or other geologic structures, applicant is studying through long-time, the middle part of movable block 4 and bottom outer wall are fixed with multiple first blade 5 and the second blade 6, when the downstream rate of movable block 4 reduces, starting extraneous driving arrangement makes center-pole 2 start to turn in flammable iced storage inward turning, by the cutting of the first blade 5 and the second blade 6 pairs of bars to ensure that the stable of movable block 4 presses down, improve the extraction efficiency of methane, the heat that multiple heating tubes 8 fixing on the outer wall of movable block 4 produce is applied directly on solid-state combustible ice, and movable block 4 itself also can be heated and cause own temperature to raise, cavity 7 is offered in movable block 4 inside, and rock wool is filled in cavity 7, by the heat-blocking action of rock wool, the heat that heating tube 8 is produced is applied to solid combustible on ice completely, reduces the thawing efficiency of thermal loss and then raising combustible ice.
As preferably, the length of the first blade 5 is set to the length being greater than the second blade 6, and then increase the contact lead of the first blade 5 and combustible ice, and then prevent the heating tube 8 on the inwall of tubular thawing part and movable block 4 outer wall from colliding and causing it impaired, reach the object in extension fixture application life.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. combustible ice extracts tubing string, comprise exhaust tube (1) and be placed in the inner center-pole (2) of exhaust tube (1), it is characterized in that: being fixed with cross section at the end of described center-pole (2) is circular movable block (4), the outer wall of described movable block (4) is fixed with the heating tube (8) of multiple parallel connection, exhaust tube (1) inwall is fixed the cable that promising heating tube (8) is powered, also comprise the aggregation cover (3) that cross section is circular arc, described aggregation cover (3) is fixed on the outer wall of exhaust tube (1) hypomere.
2. combustible ice according to claim 1 extracts tubing string, it is characterized in that: on the middle part and bottom outer wall of described movable block (4), be separately installed with multiple first blade (5), the second blade (6).
3. combustible ice according to claim 1 and 2 extracts tubing string, it is characterized in that: described movable block (4) inside has cavity (7), and be filled with rock wool in cavity (7).
4. combustible ice according to claim 2 extracts tubing string, it is characterized in that: the length of described first blade (5) is greater than the length of described second blade (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132910.XA CN104790920A (en) | 2015-03-26 | 2015-03-26 | Combustible ice extraction tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132910.XA CN104790920A (en) | 2015-03-26 | 2015-03-26 | Combustible ice extraction tubular column |
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| Publication Number | Publication Date |
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| CN104790920A true CN104790920A (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510132910.XA Pending CN104790920A (en) | 2015-03-26 | 2015-03-26 | Combustible ice extraction tubular column |
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| CN (1) | CN104790920A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019868A (en) * | 2015-07-30 | 2015-11-04 | 迈瑞尔实验设备（上海）有限公司 | Seabed combustible ice mining method |
| CN108915644A (en) * | 2018-08-14 | 2018-11-30 | 韦伟 | A method of improving combustible ice stoping safety |
| CN108979538A (en) * | 2018-08-14 | 2018-12-11 | 韦伟 | A kind of combustible ice mine drilling bit |
| CN109296345A (en) * | 2018-10-17 | 2019-02-01 | 中国石油天然气集团有限公司 | A kind of seabed combustible ice gasification separation device |
Citations (7)
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| CN86108665A (en) * | 1986-12-22 | 1987-06-17 | 湖北省建筑材料工业研究设计院 | The drilling tool that is used for crisp such as directed cracking stone material |
| CN1316633A (en) * | 2001-04-19 | 2001-10-10 | 叶孙础 | Solar energy absorbing surface with conic slots aggregation |
| CN1587640A (en) * | 2004-09-21 | 2005-03-02 | 中国科学院广州能源研究所 | Method and device for sea natural gas hydrate production and drilling |
| JP2009046882A (en) * | 2007-08-20 | 2009-03-05 | Hamamatsu Photonics Kk | Methane hydrate mining method and methane hydrate mining apparatus |
| CN101750624A (en) * | 2009-12-16 | 2010-06-23 | 中国石油天然气集团公司 | Energy-collecting air gun shield for geological prospecting air gun |
| CN103233707A (en) * | 2013-05-17 | 2013-08-07 | 中国海洋石油总公司 | Exploitation device of gas hydrate of shallow water region and exploitation method |
| CN204627564U (en) * | 2015-03-26 | 2015-09-09 | 成都来宝石油设备有限公司 | A kind of combustible ice safe working device |
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2015
- 2015-03-26 CN CN201510132910.XA patent/CN104790920A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN86108665A (en) * | 1986-12-22 | 1987-06-17 | 湖北省建筑材料工业研究设计院 | The drilling tool that is used for crisp such as directed cracking stone material |
| CN1316633A (en) * | 2001-04-19 | 2001-10-10 | 叶孙础 | Solar energy absorbing surface with conic slots aggregation |
| CN1587640A (en) * | 2004-09-21 | 2005-03-02 | 中国科学院广州能源研究所 | Method and device for sea natural gas hydrate production and drilling |
| JP2009046882A (en) * | 2007-08-20 | 2009-03-05 | Hamamatsu Photonics Kk | Methane hydrate mining method and methane hydrate mining apparatus |
| CN101750624A (en) * | 2009-12-16 | 2010-06-23 | 中国石油天然气集团公司 | Energy-collecting air gun shield for geological prospecting air gun |
| CN103233707A (en) * | 2013-05-17 | 2013-08-07 | 中国海洋石油总公司 | Exploitation device of gas hydrate of shallow water region and exploitation method |
| CN204627564U (en) * | 2015-03-26 | 2015-09-09 | 成都来宝石油设备有限公司 | A kind of combustible ice safe working device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019868A (en) * | 2015-07-30 | 2015-11-04 | 迈瑞尔实验设备（上海）有限公司 | Seabed combustible ice mining method |
| CN108915644A (en) * | 2018-08-14 | 2018-11-30 | 韦伟 | A method of improving combustible ice stoping safety |
| CN108979538A (en) * | 2018-08-14 | 2018-12-11 | 韦伟 | A kind of combustible ice mine drilling bit |
| CN109296345A (en) * | 2018-10-17 | 2019-02-01 | 中国石油天然气集团有限公司 | A kind of seabed combustible ice gasification separation device |
| CN109296345B (en) * | 2018-10-17 | 2023-10-31 | 中国石油天然气集团有限公司 | Seabed combustible ice gasification separation device |
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Application publication date: 20150722 |
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