CN105863599A - Old well utilization method adopting single-cavity old well as brine-extraction horizontally-butted well - Google Patents
Old well utilization method adopting single-cavity old well as brine-extraction horizontally-butted well Download PDFInfo
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- CN105863599A CN105863599A CN201610270008.9A CN201610270008A CN105863599A CN 105863599 A CN105863599 A CN 105863599A CN 201610270008 A CN201610270008 A CN 201610270008A CN 105863599 A CN105863599 A CN 105863599A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000000605 extraction Methods 0.000 title abstract 2
- 150000003839 salts Chemical class 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 235000002639 sodium chloride Nutrition 0.000 claims description 28
- 229910052736 halogen Inorganic materials 0.000 claims description 10
- 150000002367 halogens Chemical class 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 9
- 239000011780 sodium chloride Substances 0.000 claims description 9
- 238000003032 molecular docking Methods 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 6
- 241001131796 Botaurus stellaris Species 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/28—Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent
-
- 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
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
-
- 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
- E21B7/04—Directional drilling
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)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses an old well utilization method adopting a single-cavity old well as a brine-extraction horizontally-butted well. The method comprises steps as follows: 1) the integrity and the leakproofness of a well body of the single-cavity old well are detected on site; 2) the single-cavity old well and a directional well communicate with a directional drilling technology and a horizontal well butt joint well drilling technology; 3) clear water is injected from the directional well, the injected clear water is used for continuously corroding salt rock, the single-cavity old well is exploited, and the exploited final-form cavity is obtained; 4) the final-form cavity is measured and analyzed. The existing single-cavity old well is adopted as a target well of a newly built horizontally-butted well, a crooked single-cavity old well is drilled with a horizontally-butted well butt joint technology, double-well water-solution exploitation of the abandoned single-cavity old well is realized, the cavity with a larger size and more regular shape can be obtained, and the abandoned crooked single-cavity old well can be transformed into a horizontal cavity which can be used for energy reserving.
Description
Technical field
The present invention relates to salt well and utilize technical field, particularly to the Application way of a kind of well old to single-chamber.
Background technology
Rock salt has hypotonicity, low-porosity, good rheological behavior, by internationally recognized optimal Jie for energy storage
Matter.For solving the most serious energy crisis, set up strategic reserves of energy imperative, relatively other energy reserves mode, rock
Energy reserves storehouse, salt underground has safety, economic feature, is a most important ring in strategic reserves of energy work.
External underground rock salt bank is nearly all built in huge thick salt dome, and the rock salt that China can build underground storage is stratiform
Rock salt, its thickness is thin, grade is low, indissoluble interlayer is many, therefore China underground rock salt bank build that difficulty is bigger, operation risk more
High.China's well mine salt production history is long, but is limited to complex layered rock salt geological conditions, left over numerous because adopt halogen difficulty and close
The old well of lopsided single-chamber stopped；Although the old well of the single-chamber of these deformities cannot meet the demand of oil storage gas storage at present, but its well bore is complete
Whole property and seal quality are preferable, have the potential quality of oil storage gas storage, if therefore can realize always entering these lopsided single-chambers left over
Proceed salt mine resource exploitation, and the cavity being to can be used in energy reserves can be reconstructed, be that there is higher economic benefit
's.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of use the old well of single-chamber as adopt halogen horizontally-butted wells old well profit
By method, to realize the salt mine resource exploitation to the single-chamber old well of deformity left over, and it is transformed into and can be used for energy reserves
Horizontal cavity.
The present invention uses the old well of single-chamber as adopting the old well Application way of halogen horizontally-butted wells, comprises the following steps:
1), the well bore integrity of on-the-spot well old to single-chamber and seal detect, and to well bore integrity and seal
Preferably old well carries out sonar test, obtains the initial configuration of the old well of single-chamber, layer position and dimension information；
2), initially with directed-drilling technique, directional well is drilled into the suitable position of Salt layer, controls well track and make
Drilling into the first target spot, described first target spot is positioned at below Salt layer upper surface at 10-15 rice；Then horizontal well docking is used
Drilling technology, keeps well to creep into by horizontal well, makes to drill into the second target spot, connected with directional well by old for single-chamber well, described
Second target spot is positioned at 1st/1st to three/4th of single-chamber old well well depth；
3) clear water is poured into from directional well, enter into the old well of single-chamber by horizontal well, make salt go out from target well array, utilize
The clear water the poured into continuous corrosion to rock salt, it is achieved the exploitation of well old to single-chamber, and the final form cavity after being exploited；
4), use step 1) in method to exploitation after formed final form cavity measure analysis, it is determined whether
Meet the requirement of oil gas International Underground Storage Facility.
Further, described step 3) in, also include being arranged by control injection flow, recovery time and the technology on the opportunity of falling well
Execute, make the Directional Extension that molten chamber form is bigger to volume, shape is more regular.
Beneficial effects of the present invention:
The present invention uses the old well of single-chamber as adopting the old well Application way of halogen horizontally-butted wells, is made by old for existing single-chamber well
For the target well of newly-built horizontally-butted wells, utilizing horizontal well docking technique to drill through the deformity old well of single-chamber, directional well is passed through clear water, makes
Salt is gone out by target well array, it is achieved thereby that the twin-well solution mining to the discarded old well of single-chamber；And open by twin-well is water-soluble
That adopts makes chamber, it is possible to obtain the cavity that volume is bigger, form is more regular, it is thus possible to realize becoming discarded deformity single-chamber old well reform
Can be used for the horizontal cavity of energy reserves.
The present invention old well Application way can greatly reduce quantities and the expense of target well drilling well, and target well array goes out
Bittern concentration higher than the bittern concentration of newly-built individual well by about 10%, it is thus possible to increase cavity build speed and the product of salt
Amount, increases economic efficiency；Further, since the horizontal cavity volume formed is greater than the cavity volume of the old well of single-chamber, the most permissible
Improve energy reserves amount.
Accompanying drawing explanation
Fig. 1 is the single-chamber old well drilling state schematic diagram as target well.
In figure: 1-directional well, 2-the first target spot, 3-horizontal well, 4-the second target spot, the old well of 5-single-chamber, 6-target well, 7-is
End form state cavity.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
The present embodiment uses the old well of single-chamber as adopting the old well Application way of halogen horizontally-butted wells, comprises the following steps:
1), the well bore integrity of on-the-spot well 5 old to single-chamber and seal detect, and to well bore integrity and seal
Preferably old well carries out sonar test, obtains the initial configuration of the old well of single-chamber, layer position and dimension information；
2), initially with directed-drilling technique, directional well 1 is drilled into the suitable position of Salt layer, controls well track and make
Drilling into the first target spot 2, described first target spot is positioned at below Salt layer upper surface at 10-15 rice；Then horizontal well pair is used
Connect drilling technology, keep well to creep into by horizontal well 3, make to drill into the second target spot 4, old for single-chamber well 5 and directional well 1 are connected
Logical, described second target spot is positioned at 1st/1st to three/4th of single-chamber old well well depth；
3) clear water is poured into from directional well 1, enters into the old well of single-chamber 5 by horizontal well 3, make salt discharge from target well 6,
Utilize the continuous corrosion to rock salt of the clear water that pours into, it is achieved the exploitation of well old to single-chamber, and the final form chamber after being exploited
Body 7；
4), use step 1) in method to exploitation after formed final form cavity 7 measure analysis, it is determined whether
Meet the requirement of oil gas International Underground Storage Facility.
The present embodiment use the old well of single-chamber as adopting the old well Application way of halogen horizontally-butted wells, in described step 3) in,
Also include by controlling injection flow, recovery time and the technical measures on the opportunity of falling well, make that molten chamber form is bigger to volume, shape
More regular Directional Extension.
The present embodiment use the old well of single-chamber as adopting the old well Application way of halogen horizontally-butted wells, by old for existing single-chamber well
As the target well of newly-built horizontally-butted wells, utilize horizontal well docking technique to drill through the deformity old well of single-chamber, be passed through clearly from directional well
Water, makes salt be gone out by target well array, it is achieved thereby that the twin-well solution mining of well old to single-chamber；And by twin-well solution mining
Make chamber, it is possible to obtain the cavity that volume is bigger, form is more regular, it is thus possible to realize becoming discarded deformity single-chamber old well reform
Can be used for the horizontal cavity of energy reserves.
The present embodiment old well Application way can greatly reduce quantities and the expense of target well drilling well, and target well array
The bittern concentration gone out is higher than the bittern concentration of newly-built individual well by about 10%, it is thus possible to increase speed and the product of salt that cavity is built
Amount, increases economic efficiency；Further, since the horizontal cavity volume formed is greater than the cavity volume of the old well of former single-chamber, therefore may be used
To improve energy reserves amount.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this
In the middle of the right of invention.
Claims (2)
1. one kind uses the old well of single-chamber as the old well Application way adopting halogen horizontally-butted wells, it is characterised in that: include following step
Rapid:
1), the well bore integrity of on-the-spot well old to single-chamber and seal detect, and preferable to well bore integrity and seal
Old well carry out sonar test, obtain the initial configuration of the old well of single-chamber, layer position and dimension information；
2), initially with directed-drilling technique, directional well is drilled into the suitable position of Salt layer, controls well track and make boring
Entering the first target spot, described first target spot is positioned at below Salt layer upper surface at 10-15 rice；Then horizontal well docking drilling well is used
Technology, keeps well to creep into by horizontal well, makes to drill into the second target spot, connected with directional well by old for single-chamber well, described second
Target spot is positioned at 1st/1st to three/4th of single-chamber old well well depth；
3), clear water is poured into from directional well, enter into the old well of single-chamber by horizontal well, make salt go out from target well array, utilize and fill
The clear water the entered continuous corrosion to rock salt, it is achieved the exploitation of well old to single-chamber, and the final form cavity after being exploited；
4), use step 1) in method to exploitation after formed final form cavity measure analysis, it is determined whether meet
The requirement of oil gas International Underground Storage Facility.
The old well of employing single-chamber the most according to claim 1 as adopting the old well Application way of halogen horizontally-butted wells, its feature
It is:
Described step 3) in, also include, by controlling injection flow, recovery time and the technical measures on the opportunity of falling well, making molten chamber shape
The Directional Extension that state is bigger to volume, shape is more regular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270008.9A CN105863599A (en) | 2016-04-27 | 2016-04-27 | Old well utilization method adopting single-cavity old well as brine-extraction horizontally-butted well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270008.9A CN105863599A (en) | 2016-04-27 | 2016-04-27 | Old well utilization method adopting single-cavity old well as brine-extraction horizontally-butted well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105863599A true CN105863599A (en) | 2016-08-17 |
Family
ID=56629364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270008.9A Pending CN105863599A (en) | 2016-04-27 | 2016-04-27 | Old well utilization method adopting single-cavity old well as brine-extraction horizontally-butted well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105863599A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035343A (en) * | 2017-03-17 | 2017-08-11 | 重庆大学 | A kind of rock salt cavern method of construction and its application based on to the well exploitation old well of formula |
| CN108386227A (en) * | 2018-04-09 | 2018-08-10 | 重庆大学 | The oscillating jet remodeling method of lopsided cavity |
| CN108590761A (en) * | 2018-04-30 | 2018-09-28 | 西安科技大学 | For by the system and its construction method under energy storage to deep-well |
| CN110593917A (en) * | 2018-06-12 | 2019-12-20 | 江苏省制盐工业研究所有限公司 | Method for quickly building horizontal type oversized salt cavern storage |
| CN110617861A (en) * | 2018-06-20 | 2019-12-27 | 江苏省制盐工业研究所有限公司 | Method for detecting volume of rock salt cavity by using marker solution |
| CN113187396A (en) * | 2021-04-28 | 2021-07-30 | 中煤科工生态环境科技有限公司 | Deep goaf double-target-point controlled directional detection and treatment method |
| CN114293966A (en) * | 2022-01-06 | 2022-04-08 | 山东鲁银盐穴储能工程技术有限公司 | Inversion method for net space in sediment filling cavity |
| CN114575924A (en) * | 2022-03-11 | 2022-06-03 | 浙江大学 | Cavity building pipe column and cavity building method for horizontal cavity of underground salt rock energy storage |
| CN114961673A (en) * | 2021-02-24 | 2022-08-30 | 中国石油天然气股份有限公司 | Expansion method for salt cavern gas storage |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3347595A (en) * | 1965-05-03 | 1967-10-17 | Pittsburgh Plate Glass Co | Establishing communication between bore holes in solution mining |
| US3873156A (en) * | 1973-01-15 | 1975-03-25 | Akzona Inc | Bedded underground salt deposit solution mining system |
| SU876968A1 (en) * | 1980-02-18 | 1981-10-30 | Всесоюзный Научно-Исследовательский Институт Использования Газов В Народном Хозяйстве И Подземного Хранения Нефти, Нефтепродуктов И Сжиженных Газов | Method of communicating wells in formations of soluble rock |
| US4425003A (en) * | 1981-11-04 | 1984-01-10 | Texasgulf Inc. | Single well-multiple cavity solution mining of an inclined structure |
| CN1241676A (en) * | 1999-05-15 | 2000-01-19 | 洪泽县化工(集团)总公司 | Mirabilite exploiting water-dissolution process with two wells communicated by horizontal hole |
| CN102112699A (en) * | 2008-08-01 | 2011-06-29 | 索尔维化学有限公司 | Traveling undercut solution mining systems and methods |
| CN104847327A (en) * | 2015-03-24 | 2015-08-19 | 陈建明 | Secondary recovery method for stagnant ore blocks |
| US20150260025A1 (en) * | 2014-03-14 | 2015-09-17 | Solvay Sa | Multi-well solution mining exploitation of an evaporite mineral stratum |
-
2016
- 2016-04-27 CN CN201610270008.9A patent/CN105863599A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3347595A (en) * | 1965-05-03 | 1967-10-17 | Pittsburgh Plate Glass Co | Establishing communication between bore holes in solution mining |
| US3873156A (en) * | 1973-01-15 | 1975-03-25 | Akzona Inc | Bedded underground salt deposit solution mining system |
| SU876968A1 (en) * | 1980-02-18 | 1981-10-30 | Всесоюзный Научно-Исследовательский Институт Использования Газов В Народном Хозяйстве И Подземного Хранения Нефти, Нефтепродуктов И Сжиженных Газов | Method of communicating wells in formations of soluble rock |
| US4425003A (en) * | 1981-11-04 | 1984-01-10 | Texasgulf Inc. | Single well-multiple cavity solution mining of an inclined structure |
| CN1241676A (en) * | 1999-05-15 | 2000-01-19 | 洪泽县化工(集团)总公司 | Mirabilite exploiting water-dissolution process with two wells communicated by horizontal hole |
| CN102112699A (en) * | 2008-08-01 | 2011-06-29 | 索尔维化学有限公司 | Traveling undercut solution mining systems and methods |
| US20150260025A1 (en) * | 2014-03-14 | 2015-09-17 | Solvay Sa | Multi-well solution mining exploitation of an evaporite mineral stratum |
| CN104847327A (en) * | 2015-03-24 | 2015-08-19 | 陈建明 | Secondary recovery method for stagnant ore blocks |
Non-Patent Citations (4)
| Title |
|---|
| 刘志强等: "对接井钻井技术在江西富达盐矿开采中的应用", 《探矿工程（岩土钻掘工程）》 * |
| 张振国: "复杂地质盐卤井定向对接连通开采盐卤水新技术", 《中国井矿盐》 * |
| 张续贤等: "水平对接连通井采卤技术在平顶山盐田的应用", 《中国井矿盐》 * |
| 谢国明: "水平连通井_黄盐平1井井眼轨迹技术", 《钻采工艺》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035343A (en) * | 2017-03-17 | 2017-08-11 | 重庆大学 | A kind of rock salt cavern method of construction and its application based on to the well exploitation old well of formula |
| CN108386227A (en) * | 2018-04-09 | 2018-08-10 | 重庆大学 | The oscillating jet remodeling method of lopsided cavity |
| CN108386227B (en) * | 2018-04-09 | 2019-07-30 | 重庆大学 | The oscillating jet remodeling method of lopsided cavity |
| CN108590761A (en) * | 2018-04-30 | 2018-09-28 | 西安科技大学 | For by the system and its construction method under energy storage to deep-well |
| CN110593917A (en) * | 2018-06-12 | 2019-12-20 | 江苏省制盐工业研究所有限公司 | Method for quickly building horizontal type oversized salt cavern storage |
| CN110593917B (en) * | 2018-06-12 | 2022-02-08 | 江苏省制盐工业研究所有限公司 | Method for quickly building horizontal type oversized salt cavern storage |
| CN110617861B (en) * | 2018-06-20 | 2020-12-29 | 江苏省制盐工业研究所有限公司 | Method for detecting volume of rock salt cavity by using marker solution |
| CN110617861A (en) * | 2018-06-20 | 2019-12-27 | 江苏省制盐工业研究所有限公司 | Method for detecting volume of rock salt cavity by using marker solution |
| CN114961673A (en) * | 2021-02-24 | 2022-08-30 | 中国石油天然气股份有限公司 | Expansion method for salt cavern gas storage |
| CN114961673B (en) * | 2021-02-24 | 2024-03-01 | 中国石油天然气股份有限公司 | Expansion method for salt cavern gas storage |
| CN113187396A (en) * | 2021-04-28 | 2021-07-30 | 中煤科工生态环境科技有限公司 | Deep goaf double-target-point controlled directional detection and treatment method |
| CN114293966A (en) * | 2022-01-06 | 2022-04-08 | 山东鲁银盐穴储能工程技术有限公司 | Inversion method for net space in sediment filling cavity |
| CN114293966B (en) * | 2022-01-06 | 2024-01-16 | 山东鲁银盐穴储能工程技术有限公司 | Clear space inversion method in sediment filling cavity |
| CN114575924A (en) * | 2022-03-11 | 2022-06-03 | 浙江大学 | Cavity building pipe column and cavity building method for horizontal cavity of underground salt rock energy storage |
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Application publication date: 20160817 |
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