CN107861158A - It is a kind of to determine gas hydrates BSR interfaces and the research method of seabed intersection location - Google Patents
It is a kind of to determine gas hydrates BSR interfaces and the research method of seabed intersection location Download PDFInfo
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- CN107861158A CN107861158A CN201711085190.1A CN201711085190A CN107861158A CN 107861158 A CN107861158 A CN 107861158A CN 201711085190 A CN201711085190 A CN 201711085190A CN 107861158 A CN107861158 A CN 107861158A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/3808—Seismic data acquisition, e.g. survey design
Abstract
Gas hydrates BSR interfaces and the research method of seabed intersection location are determined the invention discloses a kind of, belong to natural gas hydrate exploration technical field, this method can accurately judge the BSR interfaces of global marine site hydrate development area and the intersection location in seabed, so as to grasp ocean gas hydrate stable region to the most shallow water depth position of land side distributing edge, i.e. hydrate stability zone.This method is simple to operate, and precision is reliable, does not consider geothermal gradient and ocean temperature change curve, only utilizes bottom-water temperature pressure parameter, can be calculated with reference to hydrate phase balance condition, have very strong universality.If this method is applied to the hydrate development area in global marine site, draw out superficial part border of the global marine site hydrate stability zone to land side, then the research of seabed disaster, ecology and climate change to the whole world etc. is all significant, can be widely applied in natural gas hydrate exploration.
Description
Technical field
The present invention relates to natural gas hydrate exploration technical field, more particularly to a kind of determination gas hydrates BSR circle
Face and the research method of seabed intersection location.
Background technology
Hydrate is mainly formed under the environmental condition of cryogenic high pressure, and its stability is very sensitive to Temperature-pressure Conditions.Earthquake
(Bottom simulating reflection are referred to as Bottom-simulating reflector in data:BSR) it is generally considered to be natural gas
Earthquake Warning Mark existing for hydrate, representing hydrate stability zone, (Gas hydrate stability zone are referred to as:
GHSZ bottom circle).It is generally believed that the hydrate stability zone GHSZ scopes of marine environment are from seabed to BSR, it is one and increases to sea
Thick wedge.But not GHSZ, which develops, gas hydrates, in addition to Temperature-pressure Conditions are stablized, the formation of hydrate also needs to
Sufficient gas source condition.
At present, the research on hydrate stability zone is concentrated mainly on the thickness of hydrate stability zone, i.e., hydrate is steady
Determine the depth of curve and geothermal gradient intersections of complex curve, seabed is shown as on seismic data to BSR.But hydrate stability zone bottom circle
(BSR is shown as on seismic data) shoals and shoaled with seabed, when BSR shoals to position close to seabed, methane anaerobism oxygen
(Anaerobic Methane Oxidation are referred to as change effect:AMO methane) is consumed to a certain extent, is caused much
The seismic data in area all lacks BSR in sedimentary formation superficial part, has no the intersection location in BSR and seabed.
And the position that gas hydrates BSR interfaces are intersected with seabed, i.e. hydrate stability zone most shallow water depth position, to sea
The temperature change event at bottom is sensitive, easily causes by formation damage caused by decomposition of hydrate or even comes down.Further, since water
The buried depth of compound shoals or seabed water temperature increases, and causes the decomposition of hydrate degree of the position to increase, methane release leads to
Amount increase, is advantageous to the formation of coral reef and Carbonate.The methane of the position is leaked out in seawater or air, can also be to life
State natural environment and climate causes to have a strong impact on.Therefore BSR interfaces and the research tool of seabed intersection location are of great significance,
This is also a study hotspot and emphasis in current natural gas hydrate exploration field, and what even more the present invention was accomplished sets out
Where point and power.
The content of the invention
The present inventor is by substantial amounts of further investigation, after sufficient creative work has been paid, so as to complete this hair
It is bright.
Specifically, the present invention for current hydrate exploration area research it is more weak compared with hydrate stability zone to land
Side distributing edge, there is provided it is a kind of to settle accounts gas hydrates BSR interfaces and the research method of seabed intersection location, it is a kind of true
Determine the method for hydrate stability zone most shallow water depth position, submarine landslide is caused to hydrate, to marine ecology and atmospheric climate
The research such as influence is significant.
In order to solve the above technical problems, the technical scheme is that, there is provided one kind determines gas hydrates BSR interfaces
With the research method of seabed intersection location, comprise the following steps：
Step is 1.：BSR features significantly study area in the development of selection hydrate and seismic data, divide in BSR to land side
Choose the seismic profile along slope direction in the superficial part position of cloth；
Step is 2.：Determine that the temperature and pressure at the balance each other curve of stability and the hydrate stability boundaris of gas hydrates close
System, its stability boundaris condition are as follows：
Log10 Pe=aTe 2+bTe+c (1)
In formula, PeAnd TePressure and temperature value under respectively at the stable bottom circle of hydrate, a, b, c are empirical, respectively
For a=0.000309 DEG C-2, b=0.040094 DEG C-1And c=0.478626；
Step is 3.：Determine the depth value H of seabed each point on seismic profilesb：
Hsb=Vsw Tsb/2 (2)
In formula, VswFor seawater speed；TsbFor the two way travel time of seabed each point, unit is s, is read by seismic profile；
Step is 4.：By data base queryings such as World Ocean Database, seabed each point on seismic profile is determined
Temperature value Tsb；
Step is 5.：Calculate the temperature at BSR Growth Depths：
Tbsr=Tsb+GG(Hbsr–Hsb) (3)
In formula, GG be this area geothermal gradient, HbsrFor seabed each point on seismic profile to corresponding BSR depth, unit
It is m；
Step is 6.：The pressure value of BSR Growth Depths on seismic profile corresponding to each point of seabed is hydrostatic pressure：
Pbsr=ρsw g Hbsr (4)
In formula, ρswFor density of sea water, g is acceleration of gravity；
Step is 7.：BSR positions under different geothermal gradient backgrounds are simulated by formula (1) (2) (3) (4), wherein, except ground
The outer other specifications of warm gradient G G are determination parameter, are drawn by analog result, the intersection location and ground temperature in BSR interfaces and seabed
Gradient is unrelated；
Step is 8.：Calculate the pressure P of seabed each point on seismic profilesb：
Psb=ρsw g Hsb (5)
Step is 9.：BSR interfaces can pass through formula (1) (2) (5) and combination bottom-water temperature data T with seabed intersection locationsbMeter
Draw；
Step is 10.：In the area of global marine site hydrate development, including the unconspicuous area of BSR Seismic reflection characters, lead to
Progress 2. 3. 4. 8. 9. five steps are crossed, measure the intersection location in different regions hydrate BSR interfaces and seabed.
Above-mentioned technical proposal is employed, beneficial effects of the present invention are：
(1) computational methods can be developed in other hydrates but the unconspicuous marine site of BSR Seismic reflection characters is applied,
Predict the intersection location in hydrate BSR interfaces and seabed；
(2) because hydrate BSR interfaces and the intersection location in seabed are unrelated with geothermal gradient, mainly determined by by gas component
The control of fixed hydrate phase balance curve, bottom-water temperature and subsea pressure.Therefore, the uncertainty of geothermal gradient will not give this
Computational methods cause error, and the result of calculation of the intersection location in BSR interfaces and seabed is more reliable；
(3) suitable hydrate phase balance curve and seabed temperature and pressure parameter is determined, whole world sea is calculated using this method
The BSR interfaces of any hydrate development area in domain and the intersection location in seabed, so as to draw out global marine site hydrate stability zone to
The superficial part border of land side, the research of this seabed disaster, ecology and climate change etc. to the whole world are all significant；
(4) this method is simple to operate, and precision is reliable, does not consider geothermal gradient and ocean temperature change curve, only utilizes sea
Bottom temperature, pressure parameter, can be calculated with reference to hydrate phase balance condition, have very strong universality：
(5) sedimentation rate in combining global sea_level change curve and specific work area, paleogeographic reconstruction can be also carried out, is passed through
Seabed Gu water temperature data is investigated, reapplies formula (1) (2) (5) to old BSR interfaces in those years and old seabed at that time
Intersection location is predicted.
Brief description of the drawings
Fig. 1 is the flow chart of the embodiment of the present invention；
Fig. 2 a seismic profiles show that BSR in the distribution characteristics in work area, is intersecting to land side with seabed；
Fig. 2 b are hydrate phase balance schematic diagram, it is shown that BSR position is by hydrate phase balance curve and ground temperature ladder
Write music line intersection location determine；
Analog results of Fig. 2 c to section a under different geothermal gradients, display BSR interfaces are with seabed intersection location not by ground
The influence of warm gradient；
Fig. 3 is West Africa area hydrate BSR interfaces and the result of calculation of seabed intersection location, and isopleth is the round trip of conversion
Time TWT when walking, unit ms.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail by specific embodiment, but these particularizations are implemented
The purposes and purpose of mode are only used for enumerating the present invention, not any type of any to the real protection scope composition of the present invention
Limit, it is more non-that protection scope of the present invention is confined to this.
As shown in figure 1, determine gas hydrates BSR interfaces and the research of seabed intersection location the invention discloses a kind of
Method, comprise the following steps：
Step is 1.：BSR features significantly study area in the development of selection hydrate and seismic data, divide in BSR to land side
The seismic profile along slope direction is chosen in the superficial part position of cloth, specifically refers to reference to figure 2a；
Step is 2.：Determine that the temperature and pressure at the balance each other curve of stability and the hydrate stability boundaris of gas hydrates close
System, by taking the hydrate that pure methane is formed as an example, its stability boundaris condition is following (Makogon, 1997)：
Log10 Pe=aTe 2+bTe+c (1)
In formula, PePressure under stablizing for hydrate at the circle of bottom, TeTemperature value under stablizing for hydrate at the circle of bottom, a, b, c
For empirical, respectively a=0.000309 DEG C-2, b=0.040094 DEG C-1And c=0.478626；
Step is 3.：Determine the depth value H of seabed each point on seismic profilesb：
Hsb=Vsw Tsb/2 (2)
In formula, VswFor seawater speed, with Vsw=1450m/s is more conventional；TsbFor the two way travel time of seabed each point, unit
It is s, can be read by seismic profile；
Step is 4.：By World Ocean Database data base queryings, the temperature of seabed each point on seismic profile is determined
Angle value Tsb；
Step is 5.：Calculate the temperature at BSR Growth Depths：
Tbsr=Tsb+GG(Hbsr–Hsb) (3)
In formula, GG be this area geothermal gradient, HbsrFor seabed each point on seismic profile to corresponding BSR depth, unit
It is m；
Step is 6.：BSR buried depth is shallower on section, the pressure of the BSR Growth Depths on seismic profile corresponding to each point of seabed
Force value is hydrostatic pressure：
Pbsr=ρsw g Hbsr (4)
In formula, ρswFor density of sea water, with ρsw=1028kg/m3More conventional, g is acceleration of gravity, with g=9.81m/s2
It is more conventional；
Step is 7.：BSR positions under different geothermal gradient backgrounds are simulated by formula (1) (2) (3) (4), wherein, except ground
The outer other specifications of warm gradient G G are determination parameter, by analog result, the intersection location and ground temperature in BSR interfaces and seabed
Gradient is unrelated, and this shown in phasor with unanimously, specifically referring to reference to figure 2c；
Step is 8.：Calculate the pressure P of seabed each point on seismic profilesb：
Psb=ρsw g Hsb (5)
Step is 9.：BSR interfaces can be by formula (1) (2) (5), with reference to bottom-water temperature data T with seabed intersection locationsbMeter
Draw；
Step is 10.：In the area of global marine site hydrate development, including the unconspicuous area of BSR Seismic reflection characters, lead to
Progress 2. 3. 4. 8. 9. five steps are crossed, measure the intersection location in different regions hydrate BSR interfaces and seabed.
Wherein, step 1. select the obvious hydrate development area of BSR features be in order to verify the reliability of the computational methods,
As shown in Figure 2 c, it is consistent with what is actually observed on seismic profile with seabed intersection location by the BSR that this method is calculated.
Wherein, 2. step needs the geochemical analysis data by investigating work area, grasps the gas of research area's gas hydrates
Body component characteristicses, so that it is determined that meeting the hydrate stable phase curve of specific work area actual conditions and corresponding formula.
Wherein, 4. described bottom-water temperature value is easier to inquire about step, according to shown in phasor, specifically referring to reference to figure 2b,
The intersection point of ocean temperature change curve and hydrate phase balance curve is the position that BSR intersects with seabed, but seawater is on vertical
The more difficult acquisition of temperature variation curve, therefore this method selects the inquiry of more easy-operating bottom-water temperature value.
Wherein, the purpose of step 5. 6. 7. is the BSR for proving to calculate and reality in seabed intersection location and seismic profile
It was observed that it is consistent, the value for converting geothermal gradient does not interfere with the position.
Wherein, step 10. the calculation process without the concern for geothermal gradient, it is necessary to suitable hydrate phase balance formula
And bottom-water temperature, pressure parameter (pressure can be calculated by seabed depth).
As shown in figure 3, the calculating at West Africa area hydrate BSR interfaces and seabed intersection location is shown according to above method
As a result, example selection BSR development work area be to verify the reliability of the computational methods, i.e., the BSR that this method calculates with
Seabed intersection location is consistent with what is actually observed on seismic profile.
Although for the purpose illustrated and described, and describe the present invention above-mentioned embodiment and accompanying drawing shown in structure and
Processing procedure.But it is to describe in detail that these, which are not, can not scope of the invention is limited to this.To those skilled in the art
For, numerous modifications and variations can be made to the above-mentioned embodiment of the present invention, and these all modifications and/or change are all wrapped
Include such as within scope defined by the claims of the present invention, without departing from the scope of the present invention as defined by the appended claims
And spirit.
Claims (1)
1. a kind of determine gas hydrates BSR interfaces and the research method of seabed intersection location, it is characterised in that including following
Step：
Step is 1.：BSR features significantly study area in the development of selection hydrate and seismic data, are distributed in BSR to land side
Choose the seismic profile along slope direction in superficial part position；
Step is 2.：The temperature and pressure relation at the balance each other curve of stability and the hydrate stability boundaris of gas hydrates is determined, its
Stability boundaris condition is as follows：
Log10Pe=aTe 2+bTe+c (1)
In formula, PeAnd TePressure and temperature value under respectively at the stable bottom circle of hydrate, a, b, c are empirical, respectively a
=0.000309 DEG C-2, b=0.040094 DEG C-1And c=0.478626；
Step is 3.：Determine the depth value H of seabed each point on seismic profilesb：
Hsb=Vsw Tsb/2 (2)
In formula, VswFor seawater speed；TsbFor the two way travel time of seabed each point, unit is s, is read by seismic profile；
Step is 4.：By data base queryings such as World Ocean Database, the temperature of seabed each point on seismic profile is determined
Value Tsb；
Step is 5.：Calculate the temperature at BSR Growth Depths：
Tbsr=Tsb+GG(Hbsr–Hsb) (3)
In formula, GG be this area geothermal gradient, HbsrFor the depth of seabed each point on seismic profile to corresponding BSR, unit is m；
Step is 6.：The pressure value of BSR Growth Depths on seismic profile corresponding to each point of seabed is hydrostatic pressure：
Pbsr=ρsw g Hbsr (4)
In formula, ρswFor density of sea water, g is acceleration of gravity；
Step is 7.：BSR positions under different geothermal gradient backgrounds are simulated by formula (1) (2) (3) (4), wherein, except ground temperature ladder
It is determination parameter to spend the outer other specifications of GG, is drawn by analog result, the intersection location and geothermal gradient in BSR interfaces and seabed
It is unrelated；
Step is 8.：Calculate the pressure P of seabed each point on seismic profilesb：
Psb=ρsw g Hsb (5)
Step is 9.：BSR interfaces can pass through formula (1) (2) (5) and combination bottom-water temperature data T with seabed intersection locationsbCalculate
Go out；
Step is 10.：In the area of global marine site hydrate development, including the unconspicuous area of BSR Seismic reflection characters, by entering
Row 2. 3. 4. 8. 9. five steps, measure the intersection location in different regions hydrate BSR interfaces and seabed.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108647461A (en) * | 2018-05-17 | 2018-10-12 | 中国石油大学(华东) | Split the Two-dimensional numerical simulation method and system that structural belt hydrate stablizes bottom circle in salt bottom |
| CN109298463A (en) * | 2018-09-27 | 2019-02-01 | 北京珠玛阳光科技有限公司 | A kind of joint P- and S-wave velocity and density prediction gas hydrates method |
| CN109885962A (en) * | 2019-03-05 | 2019-06-14 | 中国石油大学(华东) | Gas Hydrate In Sea Areas decomposes the numerical Simulation Prediction method for inducing submarine landslide |
| CN110456024A (en) * | 2019-08-23 | 2019-11-15 | 中国石油大学(华东) | A kind of method and system for analyzing gas hydrates stable region boundary carbon cycle process |
| CN110674572A (en) * | 2019-09-18 | 2020-01-10 | 西南石油大学 | Method for predicting natural gas hydrate generation area in seabed gas transmission pipeline |
| CN111781640A (en) * | 2020-06-30 | 2020-10-16 | 广州海洋地质调查局 | Method for rapidly judging hydrate content based on BSR (buffer status report) characteristics and processing terminal |
| CN113142102A (en) * | 2021-04-30 | 2021-07-23 | 中国石油大学(华东) | Site selection and planting method and device for establishing deepwater coral submarine culture farm |
| CN115220126A (en) * | 2022-07-18 | 2022-10-21 | 广州海洋地质调查局 | Detection device and detection method for hydrate conversion interface |
| CN117408186A (en) * | 2023-12-14 | 2024-01-16 | 青岛海洋地质研究所 | Method for judging submarine-like reflecting layer of natural gas hydrate in seismic section |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071177A (en) * | 2006-05-11 | 2007-11-14 | 普拉德研究及开发股份有限公司 | Method and apparatus for locating gas hydrate |
| CN106383360A (en) * | 2016-08-16 | 2017-02-08 | 广东石油化工学院 | Seismic data based submarine sediment temperature-pressure field recognition method |
| WO2017039816A1 (en) * | 2015-09-04 | 2017-03-09 | Exxonmobil Upstream Research Company | Exploration method and system for detection of hydrocarbons from the water column |
| CN106680872A (en) * | 2017-02-06 | 2017-05-17 | 中国石油大学(华东) | High-efficient ocean natural gas hydrate seismic study method |
-
2017
- 2017-11-07 CN CN201711085190.1A patent/CN107861158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071177A (en) * | 2006-05-11 | 2007-11-14 | 普拉德研究及开发股份有限公司 | Method and apparatus for locating gas hydrate |
| WO2017039816A1 (en) * | 2015-09-04 | 2017-03-09 | Exxonmobil Upstream Research Company | Exploration method and system for detection of hydrocarbons from the water column |
| CN106383360A (en) * | 2016-08-16 | 2017-02-08 | 广东石油化工学院 | Seismic data based submarine sediment temperature-pressure field recognition method |
| CN106680872A (en) * | 2017-02-06 | 2017-05-17 | 中国石油大学(华东) | High-efficient ocean natural gas hydrate seismic study method |
Non-Patent Citations (4)
| Title |
|---|
| YANG,JINXIU: "3D seismic analysis of subsurface gas migration and the gas hydrate system offshore Mauritania", 《DURHAM E-THESES（HTTP://ETHESES/DUR.AC.UK/9375）》 * |
| 杨睿 等: "琼东南海域海底浅层水合物层识别研究", 《地质评论》 * |
| 杨金秀 等: "BSR及其下伏游离气区的分布特征与控制因素", 《石油与天然气地质》 * |
| 杨金秀 等: "流体运移对水合物及下伏游离气分布的控制作用", 《中国地球科学联合学术年会 2014》 * |
Cited By (13)
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| CN108647461A (en) * | 2018-05-17 | 2018-10-12 | 中国石油大学(华东) | Split the Two-dimensional numerical simulation method and system that structural belt hydrate stablizes bottom circle in salt bottom |
| CN108647461B (en) * | 2018-05-17 | 2022-04-19 | 中国石油大学(华东) | Two-dimensional numerical simulation method and system for salt bottom split structure with hydrate stable bottom boundary |
| CN109298463A (en) * | 2018-09-27 | 2019-02-01 | 北京珠玛阳光科技有限公司 | A kind of joint P- and S-wave velocity and density prediction gas hydrates method |
| CN109885962B (en) * | 2019-03-05 | 2023-09-26 | 中国石油大学(华东) | Numerical simulation prediction method for sea area natural gas hydrate decomposition induced seabed landslide |
| CN109885962A (en) * | 2019-03-05 | 2019-06-14 | 中国石油大学(华东) | Gas Hydrate In Sea Areas decomposes the numerical Simulation Prediction method for inducing submarine landslide |
| CN110456024A (en) * | 2019-08-23 | 2019-11-15 | 中国石油大学(华东) | A kind of method and system for analyzing gas hydrates stable region boundary carbon cycle process |
| CN110674572A (en) * | 2019-09-18 | 2020-01-10 | 西南石油大学 | Method for predicting natural gas hydrate generation area in seabed gas transmission pipeline |
| CN110674572B (en) * | 2019-09-18 | 2022-03-11 | 西南石油大学 | Method for predicting natural gas hydrate generation area in seabed gas transmission pipeline |
| CN111781640A (en) * | 2020-06-30 | 2020-10-16 | 广州海洋地质调查局 | Method for rapidly judging hydrate content based on BSR (buffer status report) characteristics and processing terminal |
| CN113142102A (en) * | 2021-04-30 | 2021-07-23 | 中国石油大学(华东) | Site selection and planting method and device for establishing deepwater coral submarine culture farm |
| CN115220126A (en) * | 2022-07-18 | 2022-10-21 | 广州海洋地质调查局 | Detection device and detection method for hydrate conversion interface |
| CN117408186A (en) * | 2023-12-14 | 2024-01-16 | 青岛海洋地质研究所 | Method for judging submarine-like reflecting layer of natural gas hydrate in seismic section |
| CN117408186B (en) * | 2023-12-14 | 2024-03-12 | 青岛海洋地质研究所 | Method for judging submarine-like reflecting layer of natural gas hydrate in seismic section |
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