CN106761728A - A kind of recognition methods of the favourable interval of marine facies shale formation - Google Patents
A kind of recognition methods of the favourable interval of marine facies shale formation Download PDFInfo
- Publication number
- CN106761728A CN106761728A CN201710079042.2A CN201710079042A CN106761728A CN 106761728 A CN106761728 A CN 106761728A CN 201710079042 A CN201710079042 A CN 201710079042A CN 106761728 A CN106761728 A CN 106761728A
- Authority
- CN
- China
- Prior art keywords
- interval
- uranium
- shale formation
- marine facies
- log data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 208000035126 Facies Diseases 0.000 title claims abstract description 149
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 145
- 230000002349 favourable effect Effects 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 41
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims abstract description 147
- 229910052770 Uranium Inorganic materials 0.000 claims abstract description 110
- 241001269238 Data Species 0.000 claims abstract description 24
- 239000003079 shale oil Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 17
- 239000005416 organic matter Substances 0.000 description 9
- 229910001748 carbonate mineral Inorganic materials 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006698 induction Effects 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
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock 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
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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention provides a kind of recognition methods of the favourable interval of marine facies shale formation, including：The first log data of marine facies shale formation is obtained, and marine facies shale formation is divided into by rich uranium interval, uranium-bearing interval and depleted uranium interval according to the first log data；The second log data of marine facies shale formation is obtained again, and marine facies shale formation is divided by high resistivity interval, middle resistivity interval and low-resistivity interval according to the second log data；Rich uranium interval, uranium-bearing interval and depleted uranium interval and high resistivity interval, middle resistivity interval and the low-resistivity interval divided finally according to marine facies shale formation, determine the favourable interval of marine facies shale formation.The present invention recognizes the favourable interval of marine facies shale formation by two kinds of log datas, required data are less and easy acquisition, identification process is simple, quick, solve in the prior art obtain data it is more, calculating process is complex, calculating cycle is long, is unfavorable for the problem of the timely exploitation of shale oil gas.
Description
Technical field
The present invention relates to unconventionaloil pool exploration and development technical field, more particularly to a kind of favourable interval of marine facies shale formation
Recognition methods.
Background technology
In recent years, with the development of unconventional petroleum resources, shale oil gas is increasingly becoming unconventional petroleum resources exploitation
Major fields.Shale is marine facies shale, terrestrial facies shale according to sedimentary facies division, and wherein marine facies shale has extensive point in China
Cloth, during the favourable interval of marine facies shale formation refers to marine facies shale formation, hydrocarbon content is higher, the stratomere for possessing extraction value,
And how to recognize that the favourable interval of marine facies shale formation has turned into problem demanding prompt solution in shale oil gas Resource Development Process,.
At present, the method for the favourable interval of prior art identification marine facies shale formation is mainly by setting up geologic interpretation mould
Type recognizes the favourable interval of marine facies shale formation, but this mode needs substantial amounts of, comprehensive original geologic data, calculates
Process is complex, calculating cycle is long, is unfavorable for the timely exploitation of shale oil gas.
The content of the invention
The present invention provides a kind of recognition methods of the favourable interval of marine facies shale formation, to solve the acquisition of prior art presence
Data are more, calculating process is complex, calculating cycle is long, are unfavorable for the problem of the timely exploitation of shale oil gas.
The present invention provides a kind of recognition methods of the favourable interval of marine facies shale formation, including：
Obtain the first log data of marine facies shale formation；
The marine facies shale formation is divided into by rich uranium interval, uranium-bearing interval and depleted uranium according to first log data
Interval；
Obtain the second log data of the marine facies shale formation；
According to second log data by the marine facies shale formation divide high resistivity interval, middle resistivity interval with
And low-resistivity interval；
Rich uranium interval, uranium-bearing interval and depleted uranium interval and the high resistivity layer divided according to the marine facies shale formation
Section, middle resistivity interval and low-resistivity interval, determine the favourable interval of the marine facies shale formation.
Alternatively, first log data is uranium element log data；Accordingly, it is described according to the described first well logging number
Rich uranium interval, uranium-bearing interval and depleted uranium interval are divided into according to by the marine facies shale formation, including：When uranium element log data
Well logging numerical value when being more than the first preset value, determine that the corresponding stratomere of the marine facies shale formation is rich uranium interval；When uranium unit
The well logging numerical value of plain log data determines the marine facies shale formation less than the first preset value and during more than the second preset value
Corresponding stratomere is uranium-bearing interval；When the well logging numerical value of uranium element log data is less than the second preset value, the sea is determined
The corresponding stratomere of phase shale formation is depleted uranium interval.
Alternatively, first log data is for natural gamma GR log datas and without uranium GR log datas；Accordingly, institute
State and the marine facies shale formation be divided into by rich uranium interval, uranium-bearing interval and depleted uranium interval according to first log data,
Including：Calculate the GR log datas and the well logging numerical difference without uranium GR log datas；When the well logging numerical difference is more than first
During preset value, determine that the corresponding stratomere of the marine facies shale formation is rich uranium interval；When the well logging numerical difference is less than first
Preset value and during more than the second preset value, determines that the corresponding stratomere of the marine facies shale formation is uranium-bearing interval；Work as institute
When stating well logging numerical difference less than the second preset value, determine that the corresponding stratomere of the marine facies shale formation is depleted uranium interval.
Alternatively, second log data is Electric Log Data；Accordingly, it is described according to the described second well logging number
High resistivity interval, middle resistivity interval and low-resistivity interval are divided according to by the marine facies shale formation, including：When described
When the well logging numerical value of Electric Log Data is more than three preset values, determine that the corresponding stratomere of the marine facies shale formation is height
Resistivity interval；When the well logging numerical value of the Electric Log Data is less than the 3rd preset value and during more than four preset values, really
It is middle resistivity interval to determine the corresponding stratomere of the marine facies shale formation；When the well logging numerical value of the Electric Log Data is small
In the 4th preset value, determine that the corresponding stratomere of the marine facies shale formation is low-resistivity interval.
Alternatively, first preset value is 60API, and second preset value is 35API.
Alternatively, the 3rd preset value is 20 ohm meters, and the 4th preset value is 2 ohm meters.
Alternatively, the rich uranium interval divided according to the marine facies shale formation, uranium-bearing interval and depleted uranium interval with
High resistivity interval, middle resistivity interval and low-resistivity interval, determine the favourable interval of the marine facies shale formation, bag
Include：
When it is simultaneously high resistivity interval that the corresponding stratomere of the marine facies shale formation is rich uranium interval, it is determined that described
The corresponding stratomere of marine facies shale formation is the favourable interval of the first kind；
When it is simultaneously middle resistivity interval that the corresponding stratomere of the marine facies shale formation is rich uranium interval, it is determined that described
The corresponding stratomere of marine facies shale formation is the favourable interval of Equations of The Second Kind；
When it is simultaneously low-resistivity interval that the corresponding stratomere of the marine facies shale formation is rich uranium interval, it is determined that described
The corresponding stratomere of marine facies shale formation is the 3rd favourable interval of class.
Knowable to embodiments of the invention, the first log data by obtaining marine facies shale formation of the invention, and according to
Marine facies shale formation is divided into rich uranium interval, uranium-bearing interval and depleted uranium interval by the first log data；Marine facies shale is obtained again
Second log data on stratum, and marine facies shale formation is divided by high resistivity interval, middle resistivity according to the second log data
Interval and low-resistivity interval；Rich uranium interval, uranium-bearing interval and the depleted uranium interval divided finally according to marine facies shale formation
With high resistivity interval, middle resistivity interval and low-resistivity interval, the favourable interval of marine facies shale formation is determined, the present invention
Recognize the favourable intervals of marine facies shale formation by two kinds of log datas, required data are less and easy acquisition, identification process is simple,
Quickly, solve that calculating process in the prior art is complex, calculating cycle is long, be unfavorable for the timely exploitation of shale oil gas
Problem.
Brief description of the drawings
Fig. 1 is that a kind of flow of the recognition methods of the favourable interval of marine facies shale formation shown in an exemplary embodiment is illustrated
Figure；
A kind of flow of the recognition methods of marine facies shale formation favourable intervals of the Fig. 2 shown in another exemplary embodiment is shown
It is intended to；
A kind of flow of the recognition methods of marine facies shale formation favourable intervals of the Fig. 3 shown in another exemplary embodiment is shown
It is intended to.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Technical term " first ", " second " in the specification and claims of the embodiment of the present invention etc. are for distinguishing
Similar object, without for describing specific order precedence.It should be appreciated that the data for so using are in appropriate situation
Under can exchange, so that embodiments of the invention described herein can be with addition to those for illustrating herein or describing
Order is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover those non-exclusive bags
Contain, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to what is clearly listed
Those steps or unit, but may include not list clearly or for these processes, method, system, product or equipment
Other intrinsic steps or unit.
Fig. 1 is that a kind of flow of the recognition methods of the favourable interval of marine facies shale formation shown in an exemplary embodiment is illustrated
Figure, the present embodiment includes：
Step 101：Obtain the first log data of marine facies shale formation.
Wherein, the first log data is conventional log data, and its source can be a large amount of well loggings that Logging Company provides
One or more in data.
Step 102：Marine facies shale formation is divided into by rich uranium interval, uranium-bearing interval and depleted uranium according to the first log data
Interval.
Specifically, contrasted with the one group of reference value for pre-setting according to the first log data, by marine facies shale formation
Carry out the division of rich uranium interval, uranium-bearing interval and depleted uranium interval.
Wherein, in organic matter of the main preservation of shale oil gas in shale, the content of uranium element characterizes marine facies shale formation
In abundance of organic matter, the content of organic matter of uranium element content marine facies shale formation section high is high, its corresponding marine facies shale ground
The content of organic matter of interval is also higher, the potentiality for also more possessing the favourable interval as oily.
Step 103：Obtain the second log data of marine facies shale formation.
Wherein, the second log data is conventional log data, and its source can be a large amount of well loggings that Logging Company provides
One or more in data.
Step 104：Marine facies shale formation is divided into by high resistivity interval, middle resistivity interval according to the second log data
And low-resistivity interval.
Specifically, contrasted with another group of reference value for pre-setting according to the second log data, by marine facies shale ground
Layer carries out the division of high resistivity interval, middle resistivity interval and low-resistivity interval.
Wherein, the resistivity of carbonate mineral is higher, and the presence of natural gas also results in resistivity rising in shale, so
Resistivity stratomere high is the stratomere that carbonate mineral content is high or shale gas-bearing property is high in marine facies shale formation, its
Resistivity shale gas-bearing property high stratomere high possesses the potentiality as favourable interval in middle marine facies shale formation.
Step 105：Rich uranium interval, uranium-bearing interval and depleted uranium interval and the high resistivity divided according to marine facies shale formation
Interval, middle resistivity interval and low-resistivity interval, determine the favourable interval of marine facies shale formation.
Specifically, organic matter provides reservoir space for shale gas, but high organic content is not meant to shale gassiness
Property one set, too high maturity can cause shale to preserve ability to decline, and poor preservation condition also results in shale gas and scatters and disappears,
So need to determine whether the gas-bearing property of rich uranium shale with resistivity, simultaneously as carbonate mineral content is high to mean have
Machine matter abundance is low, and by uranium element log, carbonate mineral content marine facies shale formation section high is depleted uranium interval,
The interval that the content of uranium element element is high and Electric Log Data is high because the content of organic matter is high, gas-bearing property is good, as marine facies
The favourable interval of shale formation.
Knowable to above-described embodiment, the first log data by obtaining marine facies shale formation of the invention, and according to first
Marine facies shale formation is divided into rich uranium interval, uranium-bearing interval and depleted uranium interval by log data；Marine facies shale formation is obtained again
The second log data, and marine facies shale formation is divided by high resistivity interval, middle resistivity interval according to the second log data
And low-resistivity interval；Rich uranium interval, uranium-bearing interval and the depleted uranium interval divided finally according to marine facies shale formation and height
Resistivity interval, middle resistivity interval and low-resistivity interval, determine the favourable interval of marine facies shale formation, and the present invention passes through
Two kinds of log datas recognize the favourable intervals of marine facies shale formation, and required data are less and easy acquisition, and identification process is simple, fast
Speed, solve in the prior art obtain data it is more, calculating process is complex, calculating cycle is long, is unfavorable for shale oil gas
Timely exploitation problem.
In one example, above-mentioned first log data is uranium element log data, accordingly, according to the first log data
Marine facies shale formation is divided into the process of rich uranium interval, uranium-bearing interval and depleted uranium interval, including：
When the well logging numerical value of uranium element log data is more than the first preset value, the corresponding stratum of marine facies shale formation is determined
Duan Weifu uranium intervals；
When the well logging numerical value of uranium element log data is less than the first preset value and during more than the second preset value, marine facies page is determined
The corresponding stratomere in rock stratum is uranium-bearing interval；
When the well logging numerical value of uranium element log data is less than the second preset value, the corresponding stratum of marine facies shale formation is determined
Section is depleted uranium interval.
A kind of flow of the recognition methods of marine facies shale formation favourable intervals of the Fig. 2 shown in another exemplary embodiment is shown
It is intended to, on the basis of above-described embodiment, the first log data, should for natural gamma GR log datas and without uranium GR log datas
Method includes：
Step 201：Obtain the natural gamma GR log datas of marine facies shale formation and without uranium GR log datas.
Wherein, natural gamma GR log datas and the well logging numerical value unit without uranium GR log datas are API.
Step 202：Calculate GR log datas and the well logging numerical difference without uranium GR log datas.
Wherein, GR log datas characterize the content of all radioactive elements in marine facies shale formation, without uranium GR log datas
Characterize marine facies shale formation in not comprising uranium element radioactive element Content, GR log datas with without uranium GR log well number
According to well logging numerical difference characterize the content of all uranium elements in phase shale formation.
Step 203：When the well logging numerical value of uranium element log data is more than the first preset value, marine facies shale formation pair is determined
The stratomere answered is rich uranium interval.
Step 204：When the well logging numerical value of uranium element log data is less than the first preset value and during more than the second preset value, really
Phase shale formation corresponding stratomere in Dinghai is uranium-bearing interval.
Step 205：When the well logging numerical value of uranium element log data is less than the second preset value, marine facies shale formation pair is determined
The stratomere answered is depleted uranium interval.
Step 206：Obtain the second log data of marine facies shale formation.
Step 207：Marine facies shale formation is divided into by high resistivity interval, middle resistivity interval according to the second log data
And low-resistivity interval.
Step 208：Rich uranium interval, uranium-bearing interval and depleted uranium interval and the high resistivity divided according to marine facies shale formation
Interval, middle resistivity interval and low-resistivity interval, determine the favourable interval of marine facies shale formation.
In one example, the first preset value is 60API, and the second preset value is 35API.
Knowable to above-described embodiment, the first log data by obtaining marine facies shale formation of the invention, and according to first
Marine facies shale formation is divided into rich uranium interval, uranium-bearing interval and depleted uranium interval by log data；Marine facies shale formation is obtained again
The second log data, and marine facies shale formation is divided by high resistivity interval, middle resistivity interval according to the second log data
And low-resistivity interval；Rich uranium interval, uranium-bearing interval and the depleted uranium interval divided finally according to marine facies shale formation and height
Resistivity interval, middle resistivity interval and low-resistivity interval, determine the favourable interval of marine facies shale formation, and the present invention passes through
Two kinds of log datas recognize the favourable intervals of marine facies shale formation, and required data are less and easy acquisition, and identification process is simple, fast
Speed, solve in the prior art obtain data it is more, calculating process is complex, calculating cycle is long, is unfavorable for shale oil gas
Timely exploitation problem.
A kind of flow of the recognition methods of marine facies shale formation favourable intervals of the Fig. 3 shown in another exemplary embodiment is shown
It is intended to, on the basis of above-described embodiment, the second log data is Electric Log Data, and the method includes：
Step 301：Obtain the first log data of marine facies shale formation.
Step 302：Marine facies shale formation is divided into by rich uranium interval, uranium-bearing interval and depleted uranium according to the first log data
Interval.
Step 303：Obtain the Electric Log Data of marine facies shale formation.
Wherein, resistivity logging can be conventional electrical survey (ES), or laterolog or induction logging.Resistivity
The unit ohm meter of the well logging numerical value of well logging.
Step 304：When the well logging numerical value of Electric Log Data is more than three preset values, marine facies shale formation pair is determined
The stratomere answered is high resistivity interval.
Step 305：When the well logging numerical value of Electric Log Data is less than the 3rd preset value and during more than four preset values, really
Phase shale formation corresponding stratomere in Dinghai is middle resistivity interval；
Step 306：When the well logging numerical value of Electric Log Data is less than the 4th preset value, marine facies shale formation correspondence is determined
Stratomere be low-resistivity interval.
Step 307：Rich uranium interval, uranium-bearing interval and depleted uranium interval and the high resistivity divided according to marine facies shale formation
Interval, middle resistivity interval and low-resistivity interval, determine the favourable interval of marine facies shale formation.
In one example, the 3rd preset value is 20 ohm meters, and the 4th preset value is 2 ohm meters.
Knowable to above-described embodiment, the first log data by obtaining marine facies shale formation of the invention, and according to first
Marine facies shale formation is divided into rich uranium interval, uranium-bearing interval and depleted uranium interval by log data；Marine facies shale formation is obtained again
The second log data, and marine facies shale formation is divided by high resistivity interval, middle resistivity interval according to the second log data
And low-resistivity interval；Rich uranium interval, uranium-bearing interval and the depleted uranium interval divided finally according to marine facies shale formation and height
Resistivity interval, middle resistivity interval and low-resistivity interval, determine the favourable interval of marine facies shale formation, and the present invention passes through
Two kinds of log datas recognize the favourable intervals of marine facies shale formation, and required data are less and easy acquisition, and identification process is simple, fast
Speed, solve in the prior art obtain data it is more, calculating process is complex, calculating cycle is long, is unfavorable for shale oil gas
Timely exploitation problem.
In one example, rich uranium interval, uranium-bearing interval and the depleted uranium interval and height for being divided according to marine facies shale formation
Resistivity interval, middle resistivity interval and low-resistivity interval, determine the process of the favourable interval of marine facies shale formation, bag
Include：
When it is simultaneously high resistivity interval that the corresponding stratomere of marine facies shale formation is rich uranium interval, marine facies shale is determined
The corresponding stratomere in stratum is the favourable interval of the first kind；
When it is simultaneously middle resistivity interval that the corresponding stratomere of marine facies shale formation is rich uranium interval, marine facies shale is determined
The corresponding stratomere in stratum is the favourable interval of Equations of The Second Kind；
When it is simultaneously low-resistivity interval that the corresponding stratomere of marine facies shale formation is rich uranium interval, marine facies shale is determined
The corresponding stratomere in stratum is the 3rd favourable interval of class.
Wherein, the favourable interval of the first kind, is rich uranium interval, high resistivity interval, illustrates that its abundance of organic matter content is high, oil
Gas content is high；The favourable interval of Equations of The Second Kind, is uranium-bearing interval, high resistivity interval, illustrates that its abundance of organic matter content is high, and oil gas contains
Amount is medium；The 3rd favourable interval of class, is depleted uranium interval, high resistivity interval, illustrates that its abundance of organic matter content is high, hydrocarbon content
It is low；The favourable interval of the corresponding stratomere of marine facies shale formation is divided according to hydrocarbon content size：The favourable interval of the first kind>The
The favourable interval of two classes>The 3rd favourable interval of class.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (7)
1. a kind of recognition methods of the favourable interval of marine facies shale formation, it is characterised in that including：
Obtain the first log data of marine facies shale formation；
The marine facies shale formation is divided into by rich uranium interval, uranium-bearing interval and depleted uranium layer according to first log data
Section；
Obtain the second log data of the marine facies shale formation；
According to second log data by the marine facies shale formation be divided into high resistivity interval, middle resistivity interval and
Low-resistivity interval；
The rich uranium interval that is divided according to the marine facies shale formation, uranium-bearing interval and depleted uranium interval and high resistivity interval, in
Resistivity interval and low-resistivity interval, determine the favourable interval of the marine facies shale formation.
2. method according to claim 1, it is characterised in that first log data is uranium element log data；
Accordingly, it is described that the marine facies shale formation is divided into by rich uranium interval, uranium-bearing interval according to first log data
And depleted uranium interval, including：
When the well logging numerical value of uranium element log data is more than the first preset value, the corresponding stratum of the marine facies shale formation is determined
Duan Weifu uranium intervals；
When the well logging numerical value of uranium element log data is less than the first preset value and during more than the second preset value, the sea is determined
The corresponding stratomere of phase shale formation is uranium-bearing interval；
When the well logging numerical value of uranium element log data is less than the second preset value, the corresponding stratum of the marine facies shale formation is determined
Section is depleted uranium interval.
3. method according to claim 1, it is characterised in that first log data is natural gamma GR log datas
With without uranium GR log datas；
Accordingly, it is described that the marine facies shale formation is divided into by rich uranium interval, uranium-bearing interval according to first log data
And depleted uranium interval, including：
Calculate the GR log datas and the well logging numerical difference without uranium GR log datas；
When the well logging numerical difference is more than the first preset value, determine that the corresponding stratomere of the marine facies shale formation is rich uranium layer
Section；
When the well logging numerical difference is less than the first preset value and during more than the second preset value, the marine facies shale formation is determined
Corresponding stratomere is uranium-bearing interval；
When the well logging numerical difference is less than the second preset value, determine that the corresponding stratomere of the marine facies shale formation is depleted uranium layer
Section.
4. according to the method in claim 2 or 3, it is characterised in that second log data is Electric Log Data；
Accordingly, it is described that the marine facies shale formation is divided by high resistivity interval, middle resistance according to second log data
Rate interval and low-resistivity interval, including：
When the well logging numerical value of the Electric Log Data is more than three preset values, determine that the marine facies shale formation is corresponding
Stratomere is high resistivity interval；
When the well logging numerical value of the Electric Log Data is less than the 3rd preset value and during more than four preset values, the sea is determined
The corresponding stratomere of phase shale formation is middle resistivity interval；
When the well logging numerical value of the Electric Log Data is less than the 4th preset value, the marine facies shale formation is determined correspondingly
Interval is low-resistivity interval.
5. method according to claim 2, it is characterised in that first preset value is 60API, second preset value
It is 35API.
6. method according to claim 4, it is characterised in that the 3rd preset value is 20 ohm meters, the described 4th
Preset value is 2 ohm meters.
7. method according to claim 4, it is characterised in that the rich uranium layer divided according to the marine facies shale formation
Section, uranium-bearing interval and depleted uranium interval and high resistivity interval, middle resistivity interval and low-resistivity interval, determine the sea
The favourable interval of phase shale formation, including：
When it is simultaneously high resistivity interval that the corresponding stratomere of the marine facies shale formation is rich uranium interval, the marine facies are determined
The corresponding stratomere of shale formation is the favourable interval of the first kind；
When it is simultaneously middle resistivity interval that the corresponding stratomere of the marine facies shale formation is rich uranium interval, the marine facies are determined
The corresponding stratomere of shale formation is the favourable interval of Equations of The Second Kind；
When it is simultaneously low-resistivity interval that the corresponding stratomere of the marine facies shale formation is rich uranium interval, the marine facies are determined
The corresponding stratomere of shale formation is the 3rd favourable interval of class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079042.2A CN106761728B (en) | 2017-02-14 | 2017-02-14 | A kind of recognition methods of the advantageous interval of marine facies shale formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079042.2A CN106761728B (en) | 2017-02-14 | 2017-02-14 | A kind of recognition methods of the advantageous interval of marine facies shale formation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761728A true CN106761728A (en) | 2017-05-31 |
| CN106761728B CN106761728B (en) | 2019-10-01 |
Family
ID=58957011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079042.2A Active CN106761728B (en) | 2017-02-14 | 2017-02-14 | A kind of recognition methods of the advantageous interval of marine facies shale formation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761728B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009126609A2 (en) * | 2008-04-07 | 2009-10-15 | Baker Hughes Incorporated | A method for petrophysical evaluation of shale gas reservoirs |
| WO2011133421A2 (en) * | 2010-04-21 | 2011-10-27 | Baker Hughes Incorporated | Method of predicting source rock thermal maturity from log responses |
| CN103098062A (en) * | 2010-09-13 | 2013-05-08 | 雪佛龙美国公司 | System and method for sweet zone identification in shale gas reservoirs |
| CN104199121A (en) * | 2014-08-15 | 2014-12-10 | 中国石油大学(北京) | Shale gas pool construction and production favorable area comprehensive determining method |
| CN104453873A (en) * | 2014-10-23 | 2015-03-25 | 中国石油天然气股份有限公司 | Shale oil-gas economical and effective layer section evaluation method |
| CN104977618A (en) * | 2014-04-09 | 2015-10-14 | 中国石油集团东方地球物理勘探有限责任公司 | Method for evaluating shale gas reservoir and finding dessert area |
| CN105626057A (en) * | 2015-12-30 | 2016-06-01 | 陕西延长石油(集团)有限责任公司研究院 | Logging optimization method for determining content of organic carbon of continental facies shale gas |
-
2017
- 2017-02-14 CN CN201710079042.2A patent/CN106761728B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009126609A2 (en) * | 2008-04-07 | 2009-10-15 | Baker Hughes Incorporated | A method for petrophysical evaluation of shale gas reservoirs |
| WO2011133421A2 (en) * | 2010-04-21 | 2011-10-27 | Baker Hughes Incorporated | Method of predicting source rock thermal maturity from log responses |
| CN103098062A (en) * | 2010-09-13 | 2013-05-08 | 雪佛龙美国公司 | System and method for sweet zone identification in shale gas reservoirs |
| CN104977618A (en) * | 2014-04-09 | 2015-10-14 | 中国石油集团东方地球物理勘探有限责任公司 | Method for evaluating shale gas reservoir and finding dessert area |
| CN104199121A (en) * | 2014-08-15 | 2014-12-10 | 中国石油大学(北京) | Shale gas pool construction and production favorable area comprehensive determining method |
| CN104453873A (en) * | 2014-10-23 | 2015-03-25 | 中国石油天然气股份有限公司 | Shale oil-gas economical and effective layer section evaluation method |
| CN105626057A (en) * | 2015-12-30 | 2016-06-01 | 陕西延长石油(集团)有限责任公司研究院 | Logging optimization method for determining content of organic carbon of continental facies shale gas |
Non-Patent Citations (2)
| Title |
|---|
| 王濡岳等: "上扬子地区下寒武统牛蹄塘组优质页岩储层测井识别——以贵州岑巩页岩气区块为例", 《天然气地球科学》 * |
| 齐宝权等: "应用测井资料评价四川盆地南部页岩气储层", 《天然气工业》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106761728B (en) | 2019-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Jev et al. | Akaso field, Nigeria: use of integrated 3-D seismic, fault slicing, clay smearing, and RFT pressure data on fault trapping and dynamic leakage | |
| CN104153769B (en) | The division of a kind of fracture-pore reservoir flow unit and evaluation methodology | |
| Khlaifat et al. | Tight gas sands development is critical to future world energy resources | |
| CN102508317B (en) | Method for identifying property of fluid in fracture-cave type carbonate rock reservoir | |
| CN103821505B (en) | Sandstone petroleum conduction layer geophysics-geology-geochemical detection method and device | |
| CN107092995A (en) | Geothermal resources assessment method and apparatus | |
| CN105116447B (en) | A kind of geology river course discriminating direction method based on curvature anomalies band | |
| CN109667576A (en) | A kind of high salinity origin cause of formation low-resistivity reservoir Logging Identification Method | |
| Marra | 2015 US Geological Survey assessment of undiscovered shale-gas and shale-oil resources of the Mississippian Barnett Shale, Bend arch–Fort Worth Basin, Texas | |
| CN105089659B (en) | A kind of Conglomerate Reservoir permeable unit recognition methods | |
| AU2017279838B1 (en) | Method for classifying deep rock geofacies based on data mining | |
| Bergmo et al. | Mapping of paleo residual oil zones on the NCS and the potential for production by CO2-EOR | |
| CN106761728A (en) | A kind of recognition methods of the favourable interval of marine facies shale formation | |
| Sanchez* et al. | Evaluating the Ellenburger reservoir for salt water disposal in the midland basin: an assessment of porosity distribution Beyond the Scale of Karsts | |
| CN106939779A (en) | Marine facies shale sequence recognition methods and device | |
| CN103590822B (en) | A kind of method that judges stratum formation low-resistance endless belt | |
| CN114592848A (en) | Method for identifying low-resistivity oil-gas layer by porosity-resistivity-lithology matching relation method | |
| CN105649614B (en) | Determine that basin abnormal high pressure involves the method for range using gonane lanostane | |
| Obidike et al. | Horizontal well standoff performance and exploitation of thin oil rim | |
| Cakici et al. | Well, Reservoir and Facilities Management (WRFM) and Surveillance Planning in a Multi-Stacked Mature Oil and Gas Field in Baram Delta | |
| CN106909717B (en) | Method for determining main oil production layer of lake-phase low-abundance and multi-production-layer compact oil field | |
| CN110334376A (en) | The recognition methods of fine and close oil dessert reservoir | |
| Fathalla et al. | Maximizing Recovery from a Depleted Oil Rim Carbonate Reservoir Through an Integrated FDP Approach: Case Study Onshore Field Abu Dhabi, UAE | |
| CN107044279A (en) | A kind of recognition methods of the favourable interval of shale formation | |
| Hassan et al. | Controlling water flood advance in Asab Thamama B reservoir |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |