CN103233707A - Exploitation device of gas hydrate of shallow water region and exploitation method - Google Patents
Exploitation device of gas hydrate of shallow water region and exploitation method Download PDFInfo
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- CN103233707A CN103233707A CN2013101836764A CN201310183676A CN103233707A CN 103233707 A CN103233707 A CN 103233707A CN 2013101836764 A CN2013101836764 A CN 2013101836764A CN 201310183676 A CN201310183676 A CN 201310183676A CN 103233707 A CN103233707 A CN 103233707A
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Abstract
The invention discloses an exploitation device of gas hydrate of a shallow water region and belongs to the technical field of marine energy exploitation. The exploitation device of the gas hydrate of the shallow water region comprises a casing pipe (1) and a sleeve (2) which is connected at the lower end of the casing pipe (1), the casing pipe (1) and the sleeve (2) are communicated, heating wires (3) are arranged inside the sleeve (2), and a cable (5) which supplies power to the heating wires (3) is arranged inside the casing pipe (1) and the sleeve (2). The exploitation device of the gas hydrate of the shallow water region can facilitate the exploitation of the gas hydrate of the shallow water region, and is relatively small in exploitation difficulty, simple in structure, low in cost of investment, easy and convenient to operate, and widely applicable to offshore oil and gas fields. The invention further discloses a method for exploiting the gas hydrate of the shallow water region by utilizing the exploitation device of the gas hydrate of the shallow water region.
Description
Technical field
The invention belongs to the technical field of marine energy sources exploitation, be specifically related to a kind of device that is applicable to the exploitation of shallow water area combustible ice, the invention still further relates to a kind of method of shallow water area combustible ice exploitation.
Background technology
Gas hydrates (Natural Gas Hydrate, be called for short Gas Hydrate) are to be distributed in the permafrost of halmeic deposit or land-based area, and the class that is formed under the high pressure low temperature condition by natural gas and water is iced the crystalline material of shape.Because its outward appearance is incendivity as ice and chance fire, so be known as " combustible ice " again.A large amount of combustible ices has been contained in the refreshing fox marine site of China's THE WESTERN SOUTH CHINA SEA, the about 22km of its mineral reserve area
2, the about 20m of combustible ice thickness overbalances 70,000,000,000 yuans, is a kind of energy with extraction value.But at present domestic still do not have feasible technology that it is developed, and the exploitation difficulty is bigger.
Above-mentioned argumentation content purpose is the various aspects of the technology that may be relevant with the various aspects of the present invention that below will be described and/or advocate of introducing to the reader, believe that this argumentation content helps to provide background information for the reader, to be conducive to understanding various aspects of the present invention better, therefore, should be appreciated that it is to read these argumentations with this angle, rather than admit prior art.
Summary of the invention
The objective of the invention is to avoid deficiency of the prior art and a kind of shallow water area combustible ice quarrying apparatus is provided, it can solve the big difficult problem of combustible ice exploitation difficulty, and simple in structure, and cost is low.The present invention also provides a kind of method of shallow water area combustible ice exploitation.
Purpose of the present invention is achieved through the following technical solutions:
A kind of shallow water area combustible ice quarrying apparatus is provided, comprises sleeve pipe and the sleeve that is connected on the sleeve pipe lower end, sleeve pipe is connected with sleeve, is provided with heating wire in the sleeve, is provided with the cable to the heating wire power supply in sleeve pipe and the sleeve.
Wherein, the upper end of described sleeve is connected with the lower end of sleeve pipe by a conical section.
Wherein, be provided with in the described sleeve for the fixing support of heating wire.
Wherein, the wall of described sleeve pipe is provided with insulation layer.
Wherein, the wall of described sleeve is provided with insulation layer.
Wherein, the diameter of described sleeve pipe is 100mm ~ 508mm.
Wherein, the diameter of described sleeve is 4m ~ 20m.
Shallow water area combustible ice quarrying apparatus provided by the invention comprises sleeve pipe and the sleeve that is connected on the sleeve pipe lower end, and sleeve pipe is connected with sleeve, is provided with heating wire in the sleeve, is provided with the cable to the heating wire power supply in sleeve pipe and the sleeve.This device is lowered to the seabed, the sleeve lower end places on the flammable ice sheet, after the heating wire heating in the sleeve, at this moment the combustible ice in the sleeve can separate and export through sleeve pipe, combustible ice in the sleeve is because separated, can become very soft, so this device can sink while exploiting, the combustible ice under sleeve has been exploited.
The above-mentioned quarrying apparatus of employing provided by the invention carries out the method for shallow water area combustible ice exploitation, comprises the steps:
S1, quarrying apparatus is connected the gas production ship, gas production ship rear connects a flexible pipe and connects the seabed gas transmission line;
S2, edge joint cover tube edge is transferred quarrying apparatus to the seabed, is pressed into the flammable ice sheet in seabed until sleeve;
S3, open electric power system, by cable heating wire is powered, make the heating wire heating, at this moment the combustible ice in the sleeve can separate and rise to the gas production ship through sleeve pipe, inserts the seabed gas transmission line through flexible pipe again, because the combustible ice in the insulation sleeve is separated, can become very soft, quarrying apparatus can sink while exploiting;
After combustible ice in the S4, sleeve had also been exploited, this device can not continue to sink, and will carry to the sea and move ship this moment on this device, and repeating step S2 carries out the combustible ice exploitation in next place then.
Beneficial effect of the present invention: the present invention is easy to the combustible ice of shallow water area is exploited, and the exploitation difficulty is lower, and quarrying apparatus is simple in structure, and cost of investment is low, and is simple to operation, oil gas field extensive use at sea.
Description of drawings
The invention will be further described to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any limitation of the invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is the structural representation of shallow water area combustible ice quarrying apparatus.
In Fig. 1, include: 1---sleeve pipe, 2---sleeve, 3---heating wire, 4---support, 5---cable.
The specific embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments, need to prove that under the situation of not conflicting, the application's embodiment and the feature among the embodiment can make up mutually.
Core of the present invention is to provide a kind of shallow water area combustible ice quarrying apparatus and exploitation method, and it can solve the big difficult problem of combustible ice exploitation difficulty, and simple in structure, and cost is low.
As shown in Figure 1, shallow water area combustible ice quarrying apparatus of the present invention comprises sleeve pipe 1 and the sleeve 2 that is connected on sleeve pipe 1 lower end, and sleeve pipe 1 is connected with sleeve 2, and the upper end of described sleeve 2 is connected with the lower end of sleeve pipe 1 by a conical section.The diameter of described sleeve pipe 1 is 100mm ~ 508mm, and the diameter of described sleeve 2 is 4m ~ 20m, and sleeve pipe 1 can be more piece, can lengthen according to the depth of water like this.Be provided with heating wire 3 in the described sleeve 2, be provided with the cable 5 to heating wire 3 power supplies in sleeve pipe 1 and the sleeve 2.Be provided with in described sleeve 2 for the fixing support 4 of heating wire 3, heating wire 3 is multi-turn, can adopt helical arrangement, also can be a plurality of independently circles.The wall of described sleeve pipe 1 and sleeve 2 is provided with insulation layer, and insulation layer can be incubated sleeve pipe 1 and sleeve 2, and the heat of reducing the loss improves utilization rate of electrical.
The present invention adopts above-mentioned quarrying apparatus to carry out the method for shallow water area combustible ice exploitation, and concrete steps are as follows:
Step 1 assembles this device, connects the gas production ship, and gas production ship rear connects long flexible pipe and connects seabed gas transmission line (making the gas production ship have enough surpluses to move ship);
Step 2, edge joint muff tube edge is transferred this device to the seabed, because this installation weight is bigger, can be pressed into the flammable ice sheet in seabed, and when transferring this device, edge joint muff tube edge is transferred this device always, transfers until can not continuing;
Step 4, after the combustible ice in the insulation sleeve had also been exploited, this device can not continue to sink, pressure meter on the gas production ship does not have again pressure to show yet, at this moment, will carry to the sea on this device and move ship, repeating step 2 then, can realize the combustible ice exploitation in next place.
Set forth a lot of details so that fully understand the present invention in the top description, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as limiting the scope of the invention.
In a word; though the present invention has exemplified above-mentioned preferred embodiment, should illustrate, though those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (8)
1. shallow water area combustible ice quarrying apparatus, it is characterized in that: comprise sleeve pipe (1) and be connected on the sleeve (2) of sleeve pipe (1) lower end, sleeve pipe (1) is connected with sleeve (2), be provided with heating wire (3) in the sleeve (2), be provided with the cable (5) to heating wire (3) power supply in sleeve pipe (1) and the sleeve (2).
2. shallow water area combustible ice quarrying apparatus according to claim 1 is characterized in that: the upper end of described sleeve (2) is connected with the lower end of sleeve pipe (1) by a conical section.
3. shallow water area combustible ice quarrying apparatus according to claim 1 is characterized in that: be provided with in the described sleeve (2) for the fixing support (4) of heating wire (3).
4. according to each described shallow water area combustible ice quarrying apparatus in the claim 1 to 3, it is characterized in that: the wall of described sleeve pipe (1) is provided with insulation layer.
5. according to each described shallow water area combustible ice quarrying apparatus in the claim 1 to 3, it is characterized in that: the wall of described sleeve (2) is provided with insulation layer.
6. according to each described shallow water area combustible ice quarrying apparatus in the claim 1 to 3, it is characterized in that: the diameter of described sleeve pipe (1) is 100mm ~ 508mm.
7. according to each described shallow water area combustible ice quarrying apparatus in the claim 1 to 3, it is characterized in that: the diameter of described sleeve (2) is 4m ~ 20m.
8. the method that each quarrying apparatus carries out the exploitation of shallow water area combustible ice in an employing such as the claim 1 to 7 is characterized in that, comprises the steps:
S1, quarrying apparatus is connected the gas production ship, gas production ship rear connects a flexible pipe and connects the seabed gas transmission line;
S2, edge joint cover tube edge is transferred quarrying apparatus to the seabed, is pressed into the flammable ice sheet in seabed until sleeve;
S3, open electric power system, by cable heating wire is powered, make the heating wire heating, at this moment the combustible ice in the sleeve can separate and rise to the gas production ship through sleeve pipe, inserts the seabed gas transmission line through flexible pipe again, because the combustible ice in the insulation sleeve is separated, can become very soft, quarrying apparatus can sink while exploiting;
After combustible ice in the S4, sleeve had also been exploited, this device can not continue to sink, and will carry to the sea and move ship this moment on this device, and repeating step S2 carries out the combustible ice exploitation in next place then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101836764A CN103233707A (en) | 2013-05-17 | 2013-05-17 | Exploitation device of gas hydrate of shallow water region and exploitation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101836764A CN103233707A (en) | 2013-05-17 | 2013-05-17 | Exploitation device of gas hydrate of shallow water region and exploitation method |
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| CN103233707A true CN103233707A (en) | 2013-08-07 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533296A (en) * | 2014-12-24 | 2015-04-22 | 西南石油大学 | Drill bit used for exploiting combustible ice |
| CN104763382A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Methane hydrate gathering pipe |
| CN104790920A (en) * | 2015-03-26 | 2015-07-22 | 成都来宝石油设备有限公司 | Combustible ice extraction tubular column |
| CN104806208A (en) * | 2015-03-26 | 2015-07-29 | 成都来宝石油设备有限公司 | Methane hydrate collecting device for shallow stratum |
| CN105804705A (en) * | 2016-03-24 | 2016-07-27 | 西南石油大学 | Built-in floating box spiral pipeline gas heating type seabed natural gas collecting device and method |
| CN105822265A (en) * | 2016-03-24 | 2016-08-03 | 西南石油大学 | External buoyancy tank multilayer electric heating bracket subsea natural gas collection device and method |
| CN105863589A (en) * | 2016-05-03 | 2016-08-17 | 中国石油大学(华东) | Method for vertical shaft electric-heating-assisted depressurizing production of natural gas hydrate reservoir |
| CN108894734A (en) * | 2018-06-21 | 2018-11-27 | 招商局重工（江苏）有限公司 | A kind of electric-heating belt is placed in the combustible ice Primordial Qi oil reservoir standpipe device outside oil reservoir standpipe |
| 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 |
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| CN101435328A (en) * | 2008-12-15 | 2009-05-20 | 中国地质大学（武汉） | Method and device for exploring seabed gas hydrate |
| CN101555797A (en) * | 2009-05-19 | 2009-10-14 | 四川大学 | Extraction device for undersea gas hydrate and extraction method thereof |
| CN102140907A (en) * | 2011-01-14 | 2011-08-03 | 何相龙 | Method for collecting methane from combustible ice |
| CN203248140U (en) * | 2013-05-17 | 2013-10-23 | 中国海洋石油总公司 | Exploiting apparatus for inflammable ice in shallow water area |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101435328A (en) * | 2008-12-15 | 2009-05-20 | 中国地质大学（武汉） | Method and device for exploring seabed gas hydrate |
| CN101555797A (en) * | 2009-05-19 | 2009-10-14 | 四川大学 | Extraction device for undersea gas hydrate and extraction method thereof |
| CN102140907A (en) * | 2011-01-14 | 2011-08-03 | 何相龙 | Method for collecting methane from combustible ice |
| CN203248140U (en) * | 2013-05-17 | 2013-10-23 | 中国海洋石油总公司 | Exploiting apparatus for inflammable ice in shallow water area |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533296A (en) * | 2014-12-24 | 2015-04-22 | 西南石油大学 | Drill bit used for exploiting combustible ice |
| CN104533296B (en) * | 2014-12-24 | 2017-04-26 | 西南石油大学 | Drill bit used for exploiting combustible ice |
| CN104763382A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Methane hydrate gathering pipe |
| CN104790920A (en) * | 2015-03-26 | 2015-07-22 | 成都来宝石油设备有限公司 | Combustible ice extraction tubular column |
| CN104806208A (en) * | 2015-03-26 | 2015-07-29 | 成都来宝石油设备有限公司 | Methane hydrate collecting device for shallow stratum |
| CN105804705A (en) * | 2016-03-24 | 2016-07-27 | 西南石油大学 | Built-in floating box spiral pipeline gas heating type seabed natural gas collecting device and method |
| CN105822265A (en) * | 2016-03-24 | 2016-08-03 | 西南石油大学 | External buoyancy tank multilayer electric heating bracket subsea natural gas collection device and method |
| CN105804705B (en) * | 2016-03-24 | 2018-05-04 | 西南石油大学 | The sea-bottom natural gas collection device and method of built-in buoyancy tank helical pipe gas heating |
| CN105863589A (en) * | 2016-05-03 | 2016-08-17 | 中国石油大学(华东) | Method for vertical shaft electric-heating-assisted depressurizing production of natural gas hydrate reservoir |
| CN108894734A (en) * | 2018-06-21 | 2018-11-27 | 招商局重工（江苏）有限公司 | A kind of electric-heating belt is placed in the combustible ice Primordial Qi oil reservoir standpipe device outside oil reservoir standpipe |
| 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 |
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Application publication date: 20130807 |
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