CN106285666A - A kind of shallow-layer soil layer mechanics parameter monitoring method of permafrost region gas hydrates boring - Google Patents
A kind of shallow-layer soil layer mechanics parameter monitoring method of permafrost region gas hydrates boring Download PDFInfo
- Publication number
- CN106285666A CN106285666A CN201610941526.9A CN201610941526A CN106285666A CN 106285666 A CN106285666 A CN 106285666A CN 201610941526 A CN201610941526 A CN 201610941526A CN 106285666 A CN106285666 A CN 106285666A
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- Prior art keywords
- cylindrical
- soil layer
- layer
- utricule
- shallow
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- 239000002689 soil Substances 0.000 title claims abstract description 35
- 150000004677 hydrates Chemical class 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 239000002775 capsule Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000605 extraction Methods 0.000 claims abstract description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 7
- 239000010935 stainless steel Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 7
- 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 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 238000005553 drilling Methods 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003345 natural gas 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/086—Withdrawing samples at the surface
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
- E21B49/0875—Well testing, e.g. testing for reservoir productivity or formation parameters determining specific fluid parameters
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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses the shallow-layer soil layer mechanics parameter monitoring method of a kind of permafrost region gas hydrates boring, it includes: shaft bottom reinforces, cylindrical utricule puts into shaft bottom, connect T-shaped stainless steel pipes, the water of extraction cylindrical capsule body, calculate soil layer mesopore fluid pressure, hydraulic pressure is entered cylindrical utricule by topping-up pump, calculate the modulus of soil layer and the step such as intensity.The present invention uses long-term rock-soil mechanics on-line monitoring technique in situ, Appropriate application permafrost region hydrate is holed, mechanics and the Changing Pattern of pore fluid pressure parameter of the shallow-layer soil layer of permafrost region gas hydrates boring are obtained, further increase pore fluid pressure and the science of reservoir mechanical meaurement, accuracy and reliability, improve the technical merit of China's permafrost region shallow layer gas hydrate reservoir exploitation, strengthen practicality and science that environmental effect is evaluated.
Description
Technical field
The invention belongs to natural gas extraction technical field, particularly to the shallow-layer of a kind of permafrost region gas hydrates boring
Soil layer mechanics parameter monitoring method.
Background technology
At present, China's permafrost region gas hydrates reservoir has carried out the shallow layer exploration of many mouthfuls of drilling wells, it is thus achieved that gas water
The parameters such as the thickness of compound reservoir, the degree of depth, are mainly measured in drilling well respectively by temperature sensor and pressure transducer
Temperature and pressure distribution situation.Owing to drilling period is short, the disturbance of drilling process is for soil layer pore fluid pressure and reservoir power
The impact learning parameter is very big, adds the well head requirement for size sensor, is difficult in drilling process to obtain exactly shallow
The parameters such as layer the pore fluid pressure evolution of reservoir, reservoir soil mechanics.And this is to the exploitation of gas hydrates reservoir and environment peace
Full evaluation is the most crucial.
Summary of the invention
It is an object of the invention to: the shallow-layer soil layer mechanics parameter monitoring side providing a kind of permafrost region gas hydrates to hole
Method, makes full use of the well head of permafrost region Gas Hydrate Drilling, obtains soil layer mechanical response long-term of drilling well port area
Changing Pattern, improves the technical merit of China's permafrost region shallow layer gas hydrate reservoir exploitation further, strengthens environmental effect
The practicality evaluated and science.
The technical scheme is that the shallow-layer soil layer mechanics parameter monitoring side that a kind of permafrost region gas hydrates are holed
Method, comprises the following steps:
A. to carrying out cement stabilization at the bottom of open hole well, sand proof net is installed around shaft bottom；
B. make rubber tube structure, collapsible, scribble the cylindrical utricule of anticorrosive coat；
C. cylinder utricule is put at the bottom of open hole well, and connection T-shaped stainless steel pipes, T-shaped are installed on cylindrical utricule
Two, stainless steel pipes upper end interface connects topping-up pump and drawing liquid pump by piezometer respectively；
D. every 6 to 12 months, by the water in drawing liquid pump extraction cylindrical capsule body, cylindrical utricule is made to shrink, soil layer
And producing cavity between cylindrical utricule, soil layer mesopore fluid enters cavity；
E. the water yield of the cylindrical utricule of pressure and drawing liquid pump extraction, meter in the cylindrical capsule body shown according to piezometer
Calculate soil layer mesopore fluid pressure；
F. by topping-up pump, hydraulic pressure is entered cylindrical utricule, make cylindrical capsule body lateral spread；
G. according to topping-up pump press-in water amount calculate cylindrical capsule side to volumetric expansion amount, further according to cylindrical hole expand
Theory, calculates modulus and the intensity of soil layer；
H. step D it is repeated several times to step G, obtains mechanics and the hole of the shallow-layer soil layer of permafrost region gas hydrates boring
The Changing Pattern of gap fluid pressure parameters.
The present invention uses the pipeline coaxial with boring, and cylinder utricule and thin stainless steel tube are put into shaft bottom, then to brill
Hole carries out landfill and seals, and then the most at regular intervals, by the water in drawing liquid pump extraction cylindrical capsule body, makes utricule shrink,
Producing cavity between soil layer and utricule, soil layer mesopore fluid enters cavity, then according to the pressure in cylindrical capsule body and capsule
Body deformability, calculates pore fluid pressure.By topping-up pump, hydraulic pressure entered cylindrical utricule so that laterally expand, according to defeated
The amount entering water calculates the lateral volumetric expansion amount of cylindrical space, further according to cylindrical hole cavity expansion theory, calculate the modulus of soil layer with
Intensity.The present invention uses long-term rock-soil mechanics on-line monitoring technique in situ, and Appropriate application permafrost region hydrate is holed, obtained
The mechanics of the shallow-layer soil layer of permafrost region gas hydrates boring and the Changing Pattern of pore fluid pressure parameter, improve further
Pore fluid pressure and the science of reservoir mechanical meaurement, accuracy and reliability, improve China's permafrost region shallow-layer natural
The technical merit of gas hydrate reservoir exploitation, strengthens practicality and science that environmental effect is evaluated.
Accompanying drawing explanation
Fig. 1 is flow chart of the present invention.
Fig. 2 is present invention application schematic diagram.
Detailed description of the invention
Embodiment 1: see Fig. 1, Fig. 2, the shallow-layer soil layer mechanics parameter monitoring of a kind of permafrost region gas hydrates boring
Method, comprises the following steps:
A. to carrying out cement stabilization at the bottom of open hole well, sand proof net is installed around shaft bottom；
B. make rubber tube structure, collapsible, scribble the cylindrical utricule of anticorrosive coat；
C. cylinder utricule is put at the bottom of open hole well, and connection T-shaped stainless steel pipes, T-shaped are installed on cylindrical utricule
Two, stainless steel pipes upper end interface connects topping-up pump and drawing liquid pump by piezometer respectively；
D. every 6 to 12 months, by the water in drawing liquid pump extraction cylindrical capsule body, cylindrical utricule is made to shrink, soil layer
And producing cavity between cylindrical utricule, soil layer mesopore fluid enters cavity；
E. the water yield of the cylindrical utricule of pressure and drawing liquid pump extraction, meter in the cylindrical capsule body shown according to piezometer
Calculate soil layer mesopore fluid pressure；
F. by topping-up pump, hydraulic pressure is entered cylindrical utricule, make cylindrical capsule body lateral spread；
G. according to topping-up pump press-in water amount calculate cylindrical capsule side to volumetric expansion amount, further according to cylindrical hole expand
Theory, calculates modulus and the intensity of soil layer；
H. step D it is repeated several times to step G, obtains mechanics and the hole of the shallow-layer soil layer of permafrost region gas hydrates boring
The Changing Pattern of gap fluid pressure parameters.
Claims (1)
1. the shallow-layer soil layer mechanics parameter monitoring method of permafrost region gas hydrates boring, it is characterised in that include with
Lower step:
A. to carrying out cement stabilization at the bottom of open hole well, sand proof net is installed around shaft bottom；
B. make rubber tube structure, collapsible, scribble the cylindrical utricule of anticorrosive coat；
C. being put at the bottom of open hole well by cylinder utricule, and install connection T-shaped stainless steel pipes on cylindrical utricule, T-shaped is stainless
Two, steel conduit upper end interface connects topping-up pump and drawing liquid pump by piezometer respectively；
D. every 6 to 12 months, by the water in drawing liquid pump extraction cylindrical capsule body, cylindrical utricule is made to shrink, soil layer and circle
Producing cavity between cylindricality utricule, soil layer mesopore fluid enters cavity；
E. in the cylindrical capsule body shown according to piezometer, the water yield of the cylindrical utricule of pressure and drawing liquid pump extraction, calculates soil
Layer mesopore fluid pressure；
F. by topping-up pump, hydraulic pressure is entered cylindrical utricule, make cylindrical capsule body lateral spread；
G. according to topping-up pump press-in water amount calculate cylindrical capsule side to volumetric expansion amount, further according to cylindrical hole expansion reason
Opinion, calculates modulus and the intensity of soil layer；
H. step D it is repeated several times to step G, obtains mechanics and the hole stream of the shallow-layer soil layer of permafrost region gas hydrates boring
The Changing Pattern of body pressure parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610941526.9A CN106285666B (en) | 2016-10-25 | 2016-10-25 | A kind of shallow-layer soil layer mechanics parameter monitoring method of permafrost region gas hydrates drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610941526.9A CN106285666B (en) | 2016-10-25 | 2016-10-25 | A kind of shallow-layer soil layer mechanics parameter monitoring method of permafrost region gas hydrates drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106285666A true CN106285666A (en) | 2017-01-04 |
| CN106285666B CN106285666B (en) | 2019-03-15 |
Family
ID=57720035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610941526.9A Active CN106285666B (en) | 2016-10-25 | 2016-10-25 | A kind of shallow-layer soil layer mechanics parameter monitoring method of permafrost region gas hydrates drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106285666B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461175A (en) * | 2017-09-15 | 2017-12-12 | 中国地质大学（武汉） | A kind of method and apparatus of advance reinforcement deep-sea gas hydrates reservoir |
| CN111678941A (en) * | 2020-06-10 | 2020-09-18 | 哈尔滨工业大学 | Soil body frost heaving test cabin, test device and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115024A (en) * | 1994-03-14 | 1996-01-17 | 河海大学 | In-situ test instrument for soft rock expansion |
| WO2009008731A1 (en) * | 2007-07-06 | 2009-01-15 | Statoilhydro Asa | Devices and methods for formation testing by measuring pressure in an isolated variable volume |
| US7653488B2 (en) * | 2007-08-23 | 2010-01-26 | Schlumberger Technology Corporation | Determination of point of sand production initiation in wellbores using residual deformation characteristics and real time monitoring of sand production |
| CN202391410U (en) * | 2011-12-18 | 2012-08-22 | 西安思坦仪器股份有限公司 | Leather bag |
| CN203383815U (en) * | 2013-06-16 | 2014-01-08 | 钱自卫 | Stretchable detector of wall of hole of drill hole |
| CN106014402A (en) * | 2016-07-25 | 2016-10-12 | 西南石油大学 | Packing medium measuring instrument for well wall deformation detection |
-
2016
- 2016-10-25 CN CN201610941526.9A patent/CN106285666B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115024A (en) * | 1994-03-14 | 1996-01-17 | 河海大学 | In-situ test instrument for soft rock expansion |
| WO2009008731A1 (en) * | 2007-07-06 | 2009-01-15 | Statoilhydro Asa | Devices and methods for formation testing by measuring pressure in an isolated variable volume |
| US7653488B2 (en) * | 2007-08-23 | 2010-01-26 | Schlumberger Technology Corporation | Determination of point of sand production initiation in wellbores using residual deformation characteristics and real time monitoring of sand production |
| CN202391410U (en) * | 2011-12-18 | 2012-08-22 | 西安思坦仪器股份有限公司 | Leather bag |
| CN203383815U (en) * | 2013-06-16 | 2014-01-08 | 钱自卫 | Stretchable detector of wall of hole of drill hole |
| CN106014402A (en) * | 2016-07-25 | 2016-10-12 | 西南石油大学 | Packing medium measuring instrument for well wall deformation detection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461175A (en) * | 2017-09-15 | 2017-12-12 | 中国地质大学（武汉） | A kind of method and apparatus of advance reinforcement deep-sea gas hydrates reservoir |
| CN111678941A (en) * | 2020-06-10 | 2020-09-18 | 哈尔滨工业大学 | Soil body frost heaving test cabin, test device and test method |
| CN111678941B (en) * | 2020-06-10 | 2023-04-25 | 哈尔滨工业大学 | Soil frost heaving test cabin, test device and test method |
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| Publication number | Publication date |
|---|---|
| CN106285666B (en) | 2019-03-15 |
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