CN105422055A - System and method for collaborative development of natural gas, water-soluble gas and natural gas hydrate - Google Patents
System and method for collaborative development of natural gas, water-soluble gas and natural gas hydrate Download PDFInfo
- Publication number
- CN105422055A CN105422055A CN201510890553.3A CN201510890553A CN105422055A CN 105422055 A CN105422055 A CN 105422055A CN 201510890553 A CN201510890553 A CN 201510890553A CN 105422055 A CN105422055 A CN 105422055A
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- CN
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- Prior art keywords
- gas
- water
- natural gas
- well assembly
- producing well
- 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
- 239000007789 gas Substances 0.000 title claims abstract description 75
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000003345 natural gas Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 14
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 150000004677 hydrates Chemical class 0.000 claims description 21
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000008398 formation water Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
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- 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
- 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0099—Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
-
- 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
- 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
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the field of exploration and development of natural gas resources and discloses a system and method for collaborative development of natural gas, water-soluble gas and a natural gas hydrate. The system comprises a first production well assembly, a second production well assembly, a gas and water separating device, a high-pressure pump set and a gas collecting tank. A double-barrel collaborative development mode is adopted, the economic benefits of free natural gas are used for complementing the low exploitation benefits of a water-soluble gas reservoir, the natural gas hydrate is subjected to heated development through produced high-temperature stratum water, and the excessive produced water is injected into the water-soluble gas reservoir again to maintain the stratum pressure of the water-soluble gas reservoir. The method is feasible economically, natural gas resources can be fully utilized, and the situation that in traditional deep well type exploitation, a single mode is adopted, and gas resources are wasted can be avoided.
Description
Technical field
The invention belongs to natural gas resource exploration and development field, particularly the system and method for a kind of co-development natural gas, Water Soluble Gas and gas hydrates.
Background technology
Three gas stacked reservoirs, namely gas hydrates reservoir, natural gas pool and water-soluble gas reservoir longitudinal direction is stacked to Tibetan, natural gas decomposes generation by hydrocarbon source rock under water-soluble gas reservoir high-temperature and high-pressure conditions, upwards migration forms natural gas pool, continue up migration run into seabed high pressure ground temperature condition and form gas hydrates, now turned out to be the citation form that natural gas resource ocean exists, and be distributed widely in seabed, the natural gas resources wherein contained is very abundant.Therefore, develop such natural gas resource cost-effectively alleviation global energy crisis, the pollution tool that controls environment are of great significance.
At present, gas hydrates exploitation is also in the exploratory stage at initial stage, and water-soluble gas reservoir is not as unconventional gas resource because development benefit difference also receives publicity, and the gas economic that simple exploitation dissociates is profitable, but can not make full use of resource.In addition, the exploitation for gas hydrates generally adopts heating, but the method thermal efficiency is low, need a large amount of thermal water resource, particularly very high for ocean condition cost.Water-soluble gas reservoir natural gas content is low, deficiency in economic performance.
Summary of the invention
The object of the present invention is to provide the system and method for a kind of co-development natural gas, Water Soluble Gas and gas hydrates, with satisfied exploitation person to three gas stacked reservoirs rational exploitations.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the invention discloses a kind of co-development natural gas, the system and method for Water Soluble Gas and gas hydrates, include the first producing well assembly, second producing well assembly, gas and water separator, high-pressure pump group, air collector, first producing well assembly and the second producing well assembly all extend to three gas stacked reservoirs from sea level, first producing well assembly is connected with gas and water separator and air collector by conveyance conduit, second producing well assembly is connected with gas and water separator and high-pressure pump group by conveyance conduit, gas and water separator is connected with high-pressure pump group and air collector by conveyance conduit, conveyance conduit is provided with safety valve.
Wherein, first producing well assembly and the second producing well assembly have included oil pipe, sleeve pipe, perforation and packer, oil pipe outside envelope has sleeve pipe, sleeve pipe offers and organizes perforation more, and packer is installed between oil pipe and sleeve pipe, position is positioned at natural gas pool and water-soluble gas reservoir line of demarcation.
Preferably, also include temperature/pressure sensor, described temperature/pressure sensor is distributed in sleeve outer wall
The present invention has following beneficial effect:
1. the present invention is by adopting two-tube co-development pattern, the lower exploitation benefit of water-soluble gas reservoir is made up by the economic benefit of free natural gas, carry out heating exploitation with the high-temperature stratum water of output to gas hydrates, unnecessary production water refills water-soluble gas reservoir to keep its strata pressure.The method is feasible economically, and can make full use of natural gas resource.
2. at rationally actual mining system, set up temperature/pressure sensor and be scattered in producing well outer wall, Real-Time Monitoring can have been carried out to the extra large layer situation of complexity change in real time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Primary clustering symbol description:
1: oil pipe, 2: sleeve pipe, 3: perforation, 4: packer, 5: conveyance conduit, 6: safety valve, 7: gas and water separator, 8: high-pressure pump group, 9: air collector, 10: temperature/pressure sensor
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.
Embodiment 1
As shown in Figure 1, the invention discloses the system and method for a kind of co-development natural gas, Water Soluble Gas and gas hydrates, include the first producing well assembly, the second producing well assembly, gas and water separator 7, high-pressure pump group 8, air collector 9 and temperature/pressure sensor 10.First producing well assembly and the second producing well assembly include oil pipe 1, sleeve pipe 2, perforation 3 and packer 4.
Installation process:
First producing well assembly and the second producing well assembly all extend to three gas stacked reservoirs from sea level, successively through seawater, gas hydrates reservoir, natural gas pool and water-soluble gas reservoir, first producing well assembly is close with the second producing well modular construction has included oil pipe 1, sleeve pipe 2, perforation 3 and packer 4, oil pipe 1 outside envelope has sleeve pipe 2, sleeve pipe 2 offers many group perforations 3, packer 4 is installed between oil pipe 1 and sleeve pipe 2, position is positioned at natural gas pool and water-soluble gas reservoir line of demarcation, natural gas pool and water-soluble gas reservoir is opened in respectively unlike group perforations 3 many in the first producing well assembly, many groups perforation 3 in second producing well assembly is opened in gas hydrates reservoir and water-soluble gas reservoir respectively, and the sleeve pipe 2 in the first producing well assembly is outside equipped with multiple temperature/pressure sensor 10, corresponding gas hydrates reservoir respectively, natural gas pool and water-soluble gas reservoir, first producing well assembly and the second producing well assembly all extend to three gas stacked reservoirs from sea level, first producing well assembly is connected with gas and water separator 7 and air collector 9 by conveyance conduit 5, second producing well assembly is connected with gas and water separator 7 and high-pressure pump group 8 by conveyance conduit 5, gas and water separator 7 is connected with high-pressure pump group 8 and air collector 9 by conveyance conduit 5, conveyance conduit 5 is provided with safety valve 6.
Operating principle:
The exploitation of natural gas pool and water-soluble gas reservoir, air collector 9 is entered through conveyance conduit 5 from the natural gas of the first producing well assembly output, gas and water separator 7 is entered through conveyance conduit 5 from the gas-liquid mixture of oil pipe 1 output, complete the separation of air water, natural gas after separation to be entered air collector 9 through conveyance conduit 5, formation water after separation enters high-pressure pump group 8 through conveyance conduit 5 and carries out supercharging, prepares re-injection.
The exploitation of gas hydrates, the mining hot-water flooding mode of handling up of gas hydrates is carried out, point two small steps:
1) the water filling stage: the hot water of high-pressure pump group 8 supercharging in formation water re-injection second producing well assembly, and injects gas hydrates reservoir from perforation 3, carries out heat resolve to gas hydrates;
2) adopt the liquid stage: gas hydrates become gas and liquid mixture through heating decomposes, enter gas and water separator 7 through sleeve pipe 2, perforation 3, oil pipe 1 and conveyance conduit 5, complete gas-water separation and collect or re-injection.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (3)
1. a co-development natural gas, the system and method for Water Soluble Gas and gas hydrates, it is characterized in that, include the first producing well assembly, second producing well assembly, gas and water separator, high-pressure pump group, air collector, the first described producing well assembly and the second producing well assembly all extend to three gas stacked reservoirs from sea level, the first described producing well assembly is connected with gas and water separator and air collector by conveyance conduit, the second described producing well assembly is connected with gas and water separator and high-pressure pump group by conveyance conduit, described gas and water separator is connected with high-pressure pump group and air collector by conveyance conduit, described conveyance conduit is provided with safety valve.
2. the system and method for a kind of co-development natural gas as claimed in claim 1, Water Soluble Gas and gas hydrates, it is characterized in that: the first described producing well assembly and the second producing well assembly have included oil pipe, sleeve pipe, perforation and packer, described oil pipe outside envelope has sleeve pipe, described sleeve pipe offers and organizes perforation more, described packer is installed between oil pipe and sleeve pipe, position is positioned at natural gas pool and water-soluble gas reservoir line of demarcation.
3. the system and method for a kind of co-development natural gas as claimed in claim 2, Water Soluble Gas and gas hydrates, it is characterized in that: also include temperature/pressure sensor, described temperature/pressure sensor is distributed in sleeve outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510890553.3A CN105422055B (en) | 2015-12-03 | 2015-12-03 | A kind of system of co-development natural gas, Water Soluble Gas and gas hydrates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510890553.3A CN105422055B (en) | 2015-12-03 | 2015-12-03 | A kind of system of co-development natural gas, Water Soluble Gas and gas hydrates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422055A true CN105422055A (en) | 2016-03-23 |
| CN105422055B CN105422055B (en) | 2017-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510890553.3A Expired - Fee Related CN105422055B (en) | 2015-12-03 | 2015-12-03 | A kind of system of co-development natural gas, Water Soluble Gas and gas hydrates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422055B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884627A (en) * | 2017-03-28 | 2017-06-23 | 中国石油大学(华东) | A kind of sea bed gas hydrate quarrying apparatus |
| CN106968644A (en) * | 2017-03-24 | 2017-07-21 | 青岛海洋地质研究所 | A kind of Gas Hydrate In Sea Areas hot extractor based on thermal generator |
| CN107859505A (en) * | 2017-10-31 | 2018-03-30 | 中国石油大学(北京) | A kind of gas hydrates stable point of increasing device adopted and method |
| CN109488259A (en) * | 2018-12-12 | 2019-03-19 | 青岛海洋地质研究所 | It is handled up the method for replacement exploitation shallow-layer bulk I class hydrate system based on warm seawater-gravel |
| CN109958410A (en) * | 2019-03-06 | 2019-07-02 | 大连理工大学 | A kind of device and method closing object using individual well joint underground heat production of water |
| CN110685647A (en) * | 2019-11-15 | 2020-01-14 | 中国华能集团有限公司 | System for complementary exploitation of natural gas hydrate of renewable energy source multipotency |
| CN111502602A (en) * | 2020-04-23 | 2020-08-07 | 中国海洋石油集团有限公司 | Natural gas hydrate gas layer commingled production pipe column and method |
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|---|---|---|---|---|
| CN1786416A (en) * | 2005-12-22 | 2006-06-14 | 中国石油大学(华东) | Method for extracting hydrate on bottom of sea by deep earth heart water circulation |
| CN101818635A (en) * | 2010-04-02 | 2010-09-01 | 吉林大学 | Method for exploiting natural gas hydrates by using high-pressure thermal jetting |
| CN102704894A (en) * | 2012-05-30 | 2012-10-03 | 上海交通大学 | In-situ submarine natural gas hydrate exploiting device and method thereof |
| RU2491420C2 (en) * | 2011-11-30 | 2013-08-27 | Алексей Львович Сильвестров | Method for production of natural gas from gas-hydrate pools and device for its realisation |
| CN104563974A (en) * | 2015-01-29 | 2015-04-29 | 中国石油大学(华东) | Supercritical carbon dioxide jet injection drilling exploitation hydrate device and method |
| CN105003237A (en) * | 2015-06-11 | 2015-10-28 | 中国石油大学(华东) | Apparatus and method for integrated processing of natural gas hydrate exploitation by geothermy and waste CO2 reinjection |
-
2015
- 2015-12-03 CN CN201510890553.3A patent/CN105422055B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786416A (en) * | 2005-12-22 | 2006-06-14 | 中国石油大学(华东) | Method for extracting hydrate on bottom of sea by deep earth heart water circulation |
| CN101818635A (en) * | 2010-04-02 | 2010-09-01 | 吉林大学 | Method for exploiting natural gas hydrates by using high-pressure thermal jetting |
| RU2491420C2 (en) * | 2011-11-30 | 2013-08-27 | Алексей Львович Сильвестров | Method for production of natural gas from gas-hydrate pools and device for its realisation |
| CN102704894A (en) * | 2012-05-30 | 2012-10-03 | 上海交通大学 | In-situ submarine natural gas hydrate exploiting device and method thereof |
| CN104563974A (en) * | 2015-01-29 | 2015-04-29 | 中国石油大学(华东) | Supercritical carbon dioxide jet injection drilling exploitation hydrate device and method |
| CN105003237A (en) * | 2015-06-11 | 2015-10-28 | 中国石油大学(华东) | Apparatus and method for integrated processing of natural gas hydrate exploitation by geothermy and waste CO2 reinjection |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968644A (en) * | 2017-03-24 | 2017-07-21 | 青岛海洋地质研究所 | A kind of Gas Hydrate In Sea Areas hot extractor based on thermal generator |
| CN106968644B (en) * | 2017-03-24 | 2018-05-22 | 青岛海洋地质研究所 | A kind of Gas Hydrate In Sea Areas hot extractor based on thermoelectric generator |
| CN106884627A (en) * | 2017-03-28 | 2017-06-23 | 中国石油大学(华东) | A kind of sea bed gas hydrate quarrying apparatus |
| CN107859505A (en) * | 2017-10-31 | 2018-03-30 | 中国石油大学(北京) | A kind of gas hydrates stable point of increasing device adopted and method |
| CN109488259A (en) * | 2018-12-12 | 2019-03-19 | 青岛海洋地质研究所 | It is handled up the method for replacement exploitation shallow-layer bulk I class hydrate system based on warm seawater-gravel |
| CN109958410A (en) * | 2019-03-06 | 2019-07-02 | 大连理工大学 | A kind of device and method closing object using individual well joint underground heat production of water |
| CN110685647A (en) * | 2019-11-15 | 2020-01-14 | 中国华能集团有限公司 | System for complementary exploitation of natural gas hydrate of renewable energy source multipotency |
| CN111502602A (en) * | 2020-04-23 | 2020-08-07 | 中国海洋石油集团有限公司 | Natural gas hydrate gas layer commingled production pipe column and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422055B (en) | 2017-12-22 |
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Granted publication date: 20171222 Termination date: 20181203 |