CN109283578A - Determine the method and device of the position for hydrocarbon window in buried hill - Google Patents
Determine the method and device of the position for hydrocarbon window in buried hill Download PDFInfo
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- CN109283578A CN109283578A CN201810057874.9A CN201810057874A CN109283578A CN 109283578 A CN109283578 A CN 109283578A CN 201810057874 A CN201810057874 A CN 201810057874A CN 109283578 A CN109283578 A CN 109283578A
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- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 112
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 112
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000011435 rock Substances 0.000 claims abstract description 68
- 238000003325 tomography Methods 0.000 claims abstract description 53
- 238000013508 migration Methods 0.000 claims abstract description 46
- 230000005012 migration Effects 0.000 claims abstract description 46
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 44
- 238000011160 research Methods 0.000 description 4
- 238000011835 investigation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Classifications
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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
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/30—Analysis
- G01V1/301—Analysis for determining seismic cross-sections or geostructures
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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
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/30—Analysis
- G01V1/306—Analysis for determining physical properties of the subsurface, e.g. impedance, porosity or attenuation profiles
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- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides a kind of method and devices of the position for hydrocarbon window in determining buried hill, this method comprises: obtaining the tomography in buried hill and the seismic cross-section of the hydrocarbon source rock adjacent with the tomography；According to the seismic cross-section, the plan view of a plurality of pressure contour and the same layer and the boundary line of the tomography on the same layer comprising the hydrocarbon source rock is obtained；According to a plurality of pressure contour on the plan view, oil-gas migration route is determined on the plan view；The boundary position of the oil-gas migration route Yu the boundary line is obtained, the boundary position is the position for hydrocarbon window in the buried hill.Present invention may determine that the position for hydrocarbon window of oil-gas migration route and buried hill in hydrocarbon source rock.
Description
Technical field
The present invention relates to oil-gas mining technical field, in particular to a kind of position for hydrocarbon window for determining disconnected control buried hill
Method and device.
Background technique
Oil and natural gas is the important strategic resource of country, is the important lifeblood of the national economic development.As oil gas is surveyed
The development in spy field, buried hill have become the main oil-gas reservoir of the efficient increasing the storage of each elephant.Since inner buried hill Conditions For Petroleum Genesis is poor,
External hydrocarbon source rock is needed to provide hydrocarbons for it.The hydrocarbons of external hydrocarbon source rock pass through the petroleum conduction path in hydrocarbon source rock
And the reservoir that buried hill is entered for hydrocarbon window of tomography.Oil gas transportation route becomes the emphasis of research in recent years.
Currently, having achieved certain research achievement to the dust trajectory of buried hill oil gas, such as concordant corrosion migration, reversion
Fracture filling is migrated, laterally for hydrocarbon and the efficient transporting of plane of unconformity etc..
In the implementation of the present invention, the inventors discovered that in the prior art the prior art has at least the following problems:
Existing research achievement is mostly the migration characteristics of qualitative research buried-hill oil-gas reservoir-forming, not can determine that in hydrocarbon source rock
Oil-gas migration route and tomography for hydrocarbon window.
Summary of the invention
In view of this, the present invention provides a kind of method and device of the position for hydrocarbon window in determining buried hill, it is latent to determine
The position for hydrocarbon window on mountain.
Specifically, including technical solution below:
In a first aspect, the present invention provides a kind of methods of the position for hydrocarbon window in determining buried hill, comprising:
Obtain the tomography in buried hill and the seismic cross-section of the hydrocarbon source rock adjacent with the tomography；
According to the seismic cross-section, a plurality of pressure contour on the same layer comprising the hydrocarbon source rock and described is obtained
The plan view of the boundary line of same layer and the tomography；
According to a plurality of pressure contour on the plan view, oil-gas migration route is determined on the plan view；
The boundary position of the oil-gas migration route Yu the boundary line is obtained, the boundary position is the confession in the buried hill
The position of hydrocarbon window.
Selectively, described according to the seismic cross-section, obtain a plurality of pressure on the same layer comprising the hydrocarbon source rock
Plan view on power isopleth and the same layer with the boundary line of the tomography, comprising:
According to the seismic cross-section, reflection top interface or the reflection bottom interface and described anti-of the hydrocarbon source rock are obtained
The boundary line of the interface She Ding or the reflection bottom interface and the tomography；
Calculate the lithostatic pressure force value at the reflection top interface or multiple positions on the reflection bottom interface；
According to the lithostatic pressure force value of the multiple position and the boundary line, the plan view is obtained.
Selectively, the lithostatic pressure for calculating multiple positions between the reflection top interface or the reflection bottom interface
Force value, the calculation formula of use are as follows:
P=h ρ g
In formula,
The lithostatic pressure force value of P --- a certain position；
H --- the depth of a certain position；
ρ --- the averag density of the overlying rock of a certain position
G --- acceleration of gravity.
Selectively, a plurality of pressure contour according on the plan view determines on the plan view
Oil-gas migration route, comprising:
Oil-gas migration route is drawn on the plan view, wherein the oil-gas migration route is perpendicular to each pressure etc.
It is worth line, and the vertex of the recess by each pressure contour, the opening direction of the recess is towards the friendship
Boundary line.
Selectively, in a plurality of pressure contour of the hydrocarbon source rock, the pressure of two pressure contours of arbitrary neighborhood
Difference is equal.
Second aspect, the present invention also provides a kind of devices of the position for hydrocarbon window in determining buried hill, comprising:
First obtains module, for obtaining the tomography in buried hill and the seismic cross-section of the hydrocarbon source rock adjacent with the tomography；
Second obtains module, more on the same layer comprising the hydrocarbon source rock for obtaining according to the seismic cross-section
The plan view of the boundary line of pressure contour and the same layer and the tomography；
Determining module, for being determined on the plan view according to a plurality of pressure contour on the plan view
Oil-gas migration route；
Third obtains module, for obtaining the boundary position of the oil-gas migration route Yu the boundary line, the boundary
Position is the position for hydrocarbon window in the buried hill.
Selectively, the second acquisition module is further used for:
According to the seismic cross-section, reflection top interface or the reflection bottom interface and described anti-of the hydrocarbon source rock are obtained
The boundary line of the interface She Ding or the reflection bottom interface and the tomography；
Calculate the lithostatic pressure force value at the reflection top interface or multiple positions on the reflection bottom interface；
According to the lithostatic pressure force value of the multiple position and the boundary line, the plan view is obtained.
Selectively, the second acquisition module calculates multiple between the reflection top interface or the reflection bottom interface
The lithostatic pressure force value of position, the calculation formula of use are as follows:
P=h ρ g
In formula,
The lithostatic pressure force value of P --- a certain position；
H --- the depth of a certain position；
ρ --- the averag density of the overlying rock of a certain position
G --- acceleration of gravity.
Selectively, the determining module is further used for:
On the plan view, oil-gas migration route is drawn, wherein the oil-gas migration route is perpendicular to each pressure
Isopleth, and the vertex of the recess by each pressure contour, the opening direction of the recess is described in
Boundary line.
Selectively, in a plurality of pressure contour of the hydrocarbon source rock, the pressure of two pressure contours of arbitrary neighborhood
Difference is equal.
Technical solution provided in an embodiment of the present invention the utility model has the advantages that
The method and device of the position for hydrocarbon window in determining buried hill provided in an embodiment of the present invention, according to the tomography in buried hill
And the seismic cross-section of the hydrocarbon source rock adjacent with tomography, obtain a plurality of pressure contour on the same layer comprising hydrocarbon source rock and same
One layer with the plan view of the boundary line of tomography；According to a plurality of pressure contour on plan view, oil gas fortune is obtained on plan view
Move route；Obtain the boundary position of the boundary line of oil-gas migration route and tomography, the as position for hydrocarbon window in buried hill.It can
Know, the method for the position for hydrocarbon window in determining buried hill provided in an embodiment of the present invention can accurately and rapidly obtain hydrocarbon source rock
In oil-gas migration route and buried hill the position for hydrocarbon window, so as to effectively instruct the investigation and prospecting of buried hill oil gas.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the flow chart of the method for the position for hydrocarbon window in determining buried hill provided in an embodiment of the present invention；
Fig. 2 is seismic cross-section provided in an embodiment of the present invention；
Fig. 3 is geologic interpretation sectional view provided in an embodiment of the present invention；
Fig. 4 is plan view provided in an embodiment of the present invention；
Fig. 5 is the block diagram of the device of the position for hydrocarbon window in determining buried hill provided in an embodiment of the present invention.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, below in conjunction with attached drawing to embodiment of the present invention make into
One step it is described in detail.
The embodiment of the invention provides a kind of methods of the position for hydrocarbon window in determining buried hill, as shown in Figure 1, including step
Rapid 101~step 104.Each step is specifically described below.
Step 101: obtaining the tomography in buried hill and the seismic cross-section of the hydrocarbon source rock adjacent with tomography.
Seismic cross-section be to arrange survey line on the ground, and carry out earthquake along each survey line and apply using method of seismic prospecting
Work acquires earthquake information, then handles the figure obtained by electronic computer.
In embodiments of the present invention, seismic cross-section can be existing, directly adopt.Generally cutd open in acquisition earthquake
When the figure of face, at the same obtain the tomography in buried hill, the buried hill reservoir of tomography side and the other side hydrocarbon source rock seismic cross-section.
As shown in Fig. 2, being the seismic cross-section of buried hill reservoir, buried hill tomography and the hydrocarbon source rock adjacent with tomography.
Step 102: according to seismic cross-section, obtaining a plurality of pressure contour on the same layer comprising hydrocarbon source rock and this is same
One layer with the plan view of the boundary line of tomography.
In this step, a plurality of pressure contour on the same layer comprising hydrocarbon source rock is obtained by seismic cross-section, it is real
Matter is exactly the depth value of multiple positions on the same layer for obtain hydrocarbon source rock, and corresponding lithostatic pressure is calculated according to depth value
The process of force value.
In method provided in an embodiment of the present invention, the same layer of hydrocarbon source rock is generally chosen for the reflection top interface of hydrocarbon source rock
Or bottom interface is reflected to obtain plan view.It chooses the reflection top interface of hydrocarbon source rock or chooses the reflection bottom interface of hydrocarbon source rock,
The position for hydrocarbon window finally obtained is essentially identical.
The step can be completed by sub-step 201-203.
Sub-step 201: it according to seismic cross-section, obtains the reflection top interface of hydrocarbon source rock or reflects bottom interface and hydrocarbon source
The reflection top interface of rock or the boundary line for reflecting bottom interface and tomography.
In this step, the reflection top interface of hydrocarbon source rock is determined according to drilling data first and reflects the depth of bottom interface
Value, on seismic cross-section, reflection top interface seismic profile corresponding with the reflection depth value of bottom interface is to reflect top interface
With reflection bottom interface.
As shown in figure 3, being includes the reflection top interface T1 of buried hill reservoir and the reflection for reflecting bottom interface T1 ', hydrocarbon source rock
It pushes up interface T2 and reflects the geologic interpretation sectional view of the tomography of bottom interface T2 ' and buried hill reservoir.
Sub-step 202: calculating reflection top interface or reflects the lithostatic pressure force value of multiple positions on bottom interface.
In this step, multiple positions first are chosen on the reflection top interface of hydrocarbon source rock or reflection bottom interface, obtained multiple
The corresponding depth in position.Precision in order to guarantee the pressure contour of subsequent drafting is higher, and the position of selection is The more the better, simultaneously
The multiple positions chosen can be evenly distributed on reflection top interface or reflection bottom interface.
The calculation formula that lithostatic pressure value uses is calculated in the step are as follows:
P=h ρ g
In formula,
The lithostatic pressure force value of P --- a certain position；
H --- the depth of a certain position；
ρ --- the averag density of the overlying rock of a certain position
G --- acceleration of gravity.
Sub-step 203: according to the lithostatic pressure force value and boundary line of multiple positions, plan view is obtained.
In this step, according to the lithostatic pressure force value of multiple positions, the plan view comprising a plurality of pressure contour is obtained.Root
According to the boundary line of hydrocarbon source rock and tomography, projection line of the boundary line on the plan view comprising a plurality of pressure contour is obtained.
In practice, a plurality of pressure etc. of the reflection top interface in the plan view of drafting comprising hydrocarbon source rock or reflection bottom interface
It is worth the projection line of line, a plurality of pressure contour at the reflection top interface of buried hill reservoir or reflection bottom interface and tomography.
As shown in figure 4, the dotted line of the upper left in figure is a plurality of pressure on the reflection top interface T1 of buried hill reservoir
Isopleth, the pressure value of a plurality of pressure contour are respectively 32MPa, 28MPa, 26MPa and 22MPa；The solid line of lower right-most portion
For hydrocarbon source rock reflection top interface T2 on a plurality of pressure contour, the pressure value of a plurality of pressure contour be respectively 56MPa,
52MPa, 48MPa, 44MPa and 40MPa, the line between the dotted line of upper left and the solid line of lower right-most portion are hydrocarbon source rock and tomography
Boundary line projection line.
In embodiments of the present invention, the reflection of hydrocarbon source rock is pushed up interface or is reflected in a plurality of pressure contour on bottom interface,
The pressure difference value of two adjacent pressure contours is equal.As shown in figure 4, a plurality of pressure at the reflection top interface of hydrocarbon source rock is equivalent
In line, the difference of two adjacent pressure contours is 4MPa.
Step 103: according to a plurality of pressure contour on plan view, oil-gas migration route is determined on plan view.
Since oil gas is always mobile from the high position of pressure to the low position of pressure, oil gas fortune is drawn on plan view
When moving route, the low pressure contour of pressure value is directed toward by the high pressure contour of pressure value in the direction of oil-gas migration route, and
Oil-gas migration route is vertical with each pressure contour.
For the ease of oil-gas migration, since oil-gas migration route passes through the vertex of the recess of each pressure contour,
The opening direction of recess is towards boundary line.
As shown in figure 4, there are two recess respectively for each pressure contour on plan view, then two oil gas can be drawn
Migration path.
Step 104: obtaining the boundary position of oil-gas migration route and boundary line, which is buried hill for hydrocarbon window
Position.
In this step, the boundary line in plan view refers to the projection line of boundary line in the plan view along the vertical direction.
Oil-gas migration route is extended at the projection line of tomography, the intersection point of the projection line of oil-gas migration route and tomography
Position is the position for hydrocarbon window in buried hill.
As shown in figure 4, two intersection points A, B of the projection line of two oil-gas migration routes and tomography are buried hill for hydrocarbon window
The position of mouth.
The method of the position for hydrocarbon window in determining buried hill provided in an embodiment of the present invention, according to the tomography in buried hill and with it is disconnected
The seismic cross-section of the adjacent hydrocarbon source rock of layer, obtain a plurality of pressure contour on the same layer comprising hydrocarbon source rock and same layer with
The plan view of the boundary line of tomography；According to a plurality of pressure contour on plan view, oil-gas migration route is obtained on plan view；
Obtain the boundary position of the boundary line of oil-gas migration route and tomography, the as position for hydrocarbon window in buried hill.It is found that of the invention
The method of the position for hydrocarbon window in the determination buried hill that embodiment provides, can accurately and rapidly obtain the oil gas in hydrocarbon source rock
The position for hydrocarbon window in migration path and buried hill, so as to effectively instruct the investigation and prospecting of buried hill oil gas.
The embodiment of the invention also provides a kind of devices of the position for hydrocarbon window in determining buried hill, as shown in figure 5, packet
It includes:
First obtains module 501, for obtaining the tomography in buried hill and the seismic cross-section of the hydrocarbon source rock adjacent with tomography；
Second obtains module 502, for according to seismic cross-section, obtaining a plurality of pressure on the same layer comprising hydrocarbon source rock
The plan view of the boundary line of isopleth and same layer and tomography；
Determining module 503, for determining oil-gas migration road on plan view according to a plurality of pressure contour on plan view
Line；
Third obtains module 504, and for obtaining the boundary position of oil-gas migration route and boundary line, which is latent
The position for hydrocarbon window on mountain.
Selectively, the second acquisition module 502 is further used for:
According to seismic cross-section, the reflection top interface of hydrocarbon source rock or the reflection top of reflection bottom interface and hydrocarbon source rock are obtained
Interface or the boundary line for reflecting bottom interface and tomography；
It calculates reflection top interface or reflects the lithostatic pressure force value of multiple positions on bottom interface；
According to the lithostatic pressure force value and boundary line of multiple positions, plan view is obtained.
Selectively, it second obtains the calculating reflection top interface of module 502 or reflects the quiet of multiple positions between bottom interface
Rock pressure force value, the calculation formula of use are as follows:
P=h ρ g
In formula,
The lithostatic pressure force value of P --- a certain position；
H --- the depth of a certain position；
ρ --- the averag density of the overlying rock of a certain position
G --- acceleration of gravity.
Selectively, determining module 503 is further used for:
On plan view, oil-gas migration route is drawn, wherein oil-gas migration route is perpendicular to each pressure contour, and
By the vertex of the recess of each pressure contour, the boundary line of the opening direction of recess towards tomography and hydrocarbon source rock.
Selectively, in a plurality of pressure contour of hydrocarbon source rock, the pressure difference value of two pressure contours of arbitrary neighborhood
It is equal.
The device of the position for hydrocarbon window in determining buried hill provided in an embodiment of the present invention, according to the tomography in buried hill and with it is disconnected
The seismic cross-section of the adjacent hydrocarbon source rock of layer, obtain a plurality of pressure contour on the same layer comprising hydrocarbon source rock and same layer with
The plan view of the boundary line of tomography；According to a plurality of pressure contour on plan view, oil-gas migration route is obtained on plan view；
Obtain the boundary position of the boundary line of oil-gas migration route and tomography, the as position for hydrocarbon window in buried hill.It is found that of the invention
The method of the position for hydrocarbon window in the determination buried hill that embodiment provides, can accurately and rapidly obtain the oil gas in hydrocarbon source rock
The position for hydrocarbon window in migration path and buried hill, so as to effectively instruct the investigation and prospecting of buried hill oil gas.
It should be understood that the device of the position for hydrocarbon window in determining buried hill provided by the above embodiment, only with above-mentioned
The division progress of each functional module can according to need and for example, in practical application by above-mentioned function distribution by different
Functional module is completed.In addition, text detection device provided by the above embodiment and Method for text detection embodiment belong to same structure
Think, specific implementation process is detailed in embodiment of the method, and which is not described herein again.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (10)
1. a kind of method of the position for hydrocarbon window in determining buried hill characterized by comprising
Obtain the tomography in buried hill and the seismic cross-section of the hydrocarbon source rock adjacent with the tomography；
According to the seismic cross-section, a plurality of pressure contour on the same layer comprising the hydrocarbon source rock and described same is obtained
The plan view of layer and the boundary line of the tomography；
According to a plurality of pressure contour on the plan view, oil-gas migration route is determined on the plan view；
The boundary position of the oil-gas migration route Yu the boundary line is obtained, the boundary position is the buried hill for hydrocarbon window
The position of mouth.
2. the method for the position for hydrocarbon window in determining buried hill according to claim 1, which is characterized in that described according to institute
State seismic cross-section, obtain on a plurality of pressure contour and the same layer on the same layer comprising the hydrocarbon source rock with it is described
The plan view of the boundary line of tomography, comprising:
According to the seismic cross-section, obtains the reflection top interface of the hydrocarbon source rock or reflect bottom interface and reflection top
The boundary line of interface or the reflection bottom interface and the tomography；
Calculate the lithostatic pressure force value at the reflection top interface or multiple positions on the reflection bottom interface；
According to the lithostatic pressure force value of the multiple position and the boundary line, the plan view is obtained.
3. the method for the position for hydrocarbon window in determining buried hill according to claim 2, which is characterized in that the calculating institute
State the lithostatic pressure force value of multiple positions between reflection top interface or the reflection bottom interface, the calculation formula of use are as follows:
P=h ρ g
In formula,
The lithostatic pressure force value of P --- a certain position；
H --- the depth of a certain position；
ρ --- the averag density of the overlying rock of a certain position
G --- acceleration of gravity.
4. the method for the position for hydrocarbon window in determining buried hill according to claim 1, which is characterized in that described according to institute
The a plurality of pressure contour on plan view is stated, oil-gas migration route is determined on the plan view, comprising:
Oil-gas migration route is drawn on the plan view, wherein the oil-gas migration route is equivalent perpendicular to each pressure
Line, and the vertex of the recess by each pressure contour, the opening direction of the recess is towards the boundary
Line.
5. the method for the position for hydrocarbon window in determining buried hill according to claim 1, which is characterized in that the hydrocarbon source rock
A plurality of pressure contour in, the pressure difference value of two pressure contours of arbitrary neighborhood is equal.
6. a kind of device of the position for hydrocarbon window in determining buried hill characterized by comprising
First obtains module, for obtaining the tomography in buried hill and the seismic cross-section of the hydrocarbon source rock adjacent with the tomography；
Second obtains module, for according to the seismic cross-section, obtaining a plurality of pressure on the same layer comprising the hydrocarbon source rock
The plan view of the boundary line of power isopleth and the same layer and the tomography；
Determining module, for determining oil gas on the plan view according to a plurality of pressure contour on the plan view
Migration path；
Third obtains module, for obtaining the boundary position of the oil-gas migration route Yu the boundary line, the boundary position
For the position for hydrocarbon window in the buried hill.
7. the device of the position for hydrocarbon window in determining buried hill according to claim 6, which is characterized in that described second obtains
Modulus block is further used for:
According to the seismic cross-section, obtains the reflection top interface of the hydrocarbon source rock or reflect bottom interface and reflection top
The boundary line of interface or the reflection bottom interface and the tomography；
Calculate the lithostatic pressure force value at the reflection top interface or multiple positions on the reflection bottom interface；
According to the lithostatic pressure force value of the multiple position and the boundary line, the plan view is obtained.
8. the device of the position for hydrocarbon window in determining buried hill according to claim 7, which is characterized in that described second obtains
Modulus block calculates the lithostatic pressure force value of multiple positions between the reflection top interface or the reflection bottom interface, the calculating of use
Formula are as follows:
P=h ρ g
In formula,
The lithostatic pressure force value of P --- a certain position；
H --- the depth of a certain position；
ρ --- the averag density of the overlying rock of a certain position
G --- acceleration of gravity.
9. the device of the position for hydrocarbon window in determining buried hill according to claim 6, which is characterized in that the determining mould
Block is further used for:
On the plan view, oil-gas migration route is drawn, wherein the oil-gas migration route is equivalent perpendicular to each pressure
Line, and the vertex of the recess by each pressure contour, the opening direction of the recess is towards the boundary
Line.
10. the device of the position for hydrocarbon window in determining buried hill according to claim 6, which is characterized in that the hydrocarbon source
In a plurality of pressure contour of rock, the pressure difference value of two pressure contours of arbitrary neighborhood is equal.
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| CN109343113A (en) * | 2018-11-05 | 2019-02-15 | 中国石油天然气股份有限公司 | A kind of method and apparatus of predicting hydrocarbon reservoirs position |
| CN113123781A (en) * | 2019-12-30 | 2021-07-16 | 中国石油天然气股份有限公司 | Quantitative determination method and device for underground mountain hydrocarbon supply window of broken-block bedrock |
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