CN107762492A - A kind of method using Logging data analysis sedimentary rock diagenetic stage - Google Patents
A kind of method using Logging data analysis sedimentary rock diagenetic stage Download PDFInfo
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- CN107762492A CN107762492A CN201610684577.8A CN201610684577A CN107762492A CN 107762492 A CN107762492 A CN 107762492A CN 201610684577 A CN201610684577 A CN 201610684577A CN 107762492 A CN107762492 A CN 107762492A
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- well
- sedimentary rock
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- section
- log
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- 239000011435 rock Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007405 data analysis Methods 0.000 title claims abstract description 12
- 239000011148 porous material Substances 0.000 claims description 19
- 238000004458 analytical method Methods 0.000 claims description 12
- 229910001919 chlorite Inorganic materials 0.000 claims description 8
- 229910052619 chlorite group Inorganic materials 0.000 claims description 8
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005056 compaction Methods 0.000 claims description 8
- 238000011161 development Methods 0.000 claims description 8
- 239000002734 clay mineral Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000011160 research Methods 0.000 claims description 5
- 229910052900 illite Inorganic materials 0.000 claims description 4
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 claims description 4
- 230000005251 gamma ray Effects 0.000 claims description 3
- 229910021647 smectite Inorganic materials 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- 206010027336 Menstruation delayed Diseases 0.000 description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229910052901 montmorillonite Inorganic materials 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010052804 Drug tolerance Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000026781 habituation Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of method using Logging data analysis sedimentary rock diagenetic stage, analyzed by well log interpretation evaluation, there should be different geologic features using in the stratum of different diagenetic stages, to realize the purpose for judging diagenetic stage residing for sedimentary rock.It is an object of the invention to provide a kind of method using Logging data analysis sedimentary rock diagenetic stage, quickly to judge diagenetic stage residing for institute's geodetic layer using well-log information.
Description
Technical field
The present invention relates to geological exploration and development field, relates in particular to one kind and utilizes Logging data analysis sedimentary rock diagenesis
The method in stage.
Background technology
During exploitation of oil-gas field, with the continuous improvement of degree of prospecting, research requirement of the developer to sedimentary rock
More and more higher.Further investigation to sedimentary rock is set in reservoir evaluation, Hydrocarbon Formation Reservoirs research, rolling prospecting and later development scheme
The importance of put etc. increasingly highlights.However, it is existing being intended to the further investigation in sedimentary rock direction more for its into
The directions such as rock mode, diagenesis characteristic, and the discussion for the depositional phase residing for the sedimentary rock in Forming Petroleum Traps also rests on not
The valued stage.The diagenetic stage habituation of sedimentary rock is divided into early stage, mid-term and late period three types.In fact, sedimentary rock
Rock mechanics are not only directly related with its diagenesis mode, also with its residing for diagenetic stage have close relationship, to identical
A set of oil-gas reservoir for, the reservoir in different diagenetic stages, the feature such as its sand body rock composition, pore size, type is each
Differ.Therefore the judgement for carrying out diagenetic stage for stratum equally has great importance in reservoir geology.
The content of the invention
It is an object of the invention to provide a kind of method using Logging data analysis sedimentary rock diagenetic stage, with quick
Judge diagenetic stage residing for institute's geodetic layer using well-log information.
The present invention is achieved through the following technical solutions：
A kind of method using Logging data analysis sedimentary rock diagenetic stage, the technology include following technical step：（a）A certain
In oil-gas exploration and development block, according to geological conditions and goal in research demand, the well with symbolical meaningses is chosen, when carrying out sound wave
Poor well logging, nutural potential logging, gamma ray log, neutron well logging, density log, obtain the full well section log of target well；
（b）Formation porosity analysis is carried out using well-log information, full well section " porosity-depth curve " is drawn, determines positive normal pressure
Implementation section；Clay mineral type and its corresponding percentage are determined using well-log information；Ground level is carried out using well-log information
Raw pore analysis, draws full well section " secondary pore-depth curve "；（c）Summary data information, choose total pore space
Degree is big, compaction is normal, secondary pore agensis, smectite content is big, section without chlorite is early for sedimentary rock diagenesis
Stage phase；It is sedimentary rock to choose the section that total porosity is small but secondary pore growing, illite content are big, chlorite content is big
Diagenesis late stage；Remaining section is defined as sedimentary rock diagenesis mid-term stage simultaneously.One kind of the invention utilizes well-log information
The method for analyzing sedimentary rock diagenetic stage, is analyzed using logging evaluation result, judges diagenesis rank residing for sedimentary rock to realize
The purpose of section.The mechanism of the present invention is：In the rock stratum of diagenesis early stage, its main depositional mode is compaction, no
It can strengthen from shallow to deep in normally linear in the presence of the geologic process mode such as explanation and recrystallization, its compaction.And for
For the stratum of diagenesis early stage, geology cementation is not sufficiently spread out also between slit, and its internal charges is most
The montmorillonite disperseed for easy aquation, therefore the lacunarity analysis drawn according to well log interpretation, its total pore space can be larger, but survey
The secondary pore that well interpretive analysis goes out can not develop or develop seldom, i.e. rock stratum matrix porosity is larger, secondary pore agensis.
For having been impacted to it in the rock stratum in diagenesis later stage, various deposition modes, wherein with cementing, corrosion,
Based on explanation, recrystallization, fully with cementing, total porosity is small for filling in rock stratum hole now, but because it is by geology
Act on of the remote past, under the effect of various external force, secondary pore is relative to be developed, and " secondary pore-depth is closed from well log interpretation
Be curve " in it can be seen that obvious bigger than normal；Also, it is in the rock stratum in diagenesis late period, the clay mineral filled in its hole
Also illite, the chlorite of stable performance are should be, therefore can also be verified accordingly from clay mineral analysis.
Further, the step（a）Interior well logging project also includes microelectrode system.Microelectrode system is that resistivity is surveyed
One kind in well, it can fine-resolution permeable formation, division thin layer, the interlayer boundary for determining different depositional phases has good
Good auxiliary judgment effect.
Further, the step（a）Interior well logging project also includes array sonic log.Array sonic log can be true
The stress trend for making stratum is moved towards with fracture development, and assisting user determines the fracture development base value of different layers position, and raising is sentenced
Disconnected precision.
The present invention compared with prior art, has the following advantages and advantages：
A kind of method using Logging data analysis sedimentary rock diagenetic stage of the invention, analyzed by well log interpretation evaluation,
There should be different geologic features using in the stratum of different diagenetic stages, judge diagenetic stage residing for sedimentary rock to realize
Purpose.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the schematic process flow diagram of a specific embodiment of the invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1：
A kind of method using Logging data analysis sedimentary rock diagenetic stage as shown in Figure 1, the technology walk including following technology
Suddenly：（a）In a certain oil-gas exploration and development block, according to geological conditions and goal in research demand, choose with symbolical meaningses
Well, carry out acoustic travel time logging, nutural potential logging, gamma ray log, neutron well logging, density log, microelectrode system, battle array
Row acoustic logging, obtain the full well section log of target well；（b）Formation porosity analysis is carried out using well-log information, is drawn complete
Well section " porosity-depth curve ", determines normal compaction section；Clay mineral type is determined using well-log information
And its corresponding percentage；Stratum secondary pore analysis is carried out using well-log information, draws full well section " secondary pore-depth relationship
Curve "；（c）Summary data information, chooses that total porosity is big, compaction is normal, secondary pore agensis, montmorillonite contain
Amount is big, the section without chlorite is sedimentary rock diagenesis early stage；Choose that total porosity is small but secondary pore growing, Erie
The section that stone content is big, chlorite content is big is sedimentary rock diagenesis late stage；Remaining section is defined as sedimentary rock simultaneously
Diagenesis mid-term stage.The mechanism of the present invention is：In the rock stratum of diagenesis early stage, its main depositional mode is made for compacting
With being not in explanation and the geologic process mode such as recrystallization, its compaction is from shallow to deep in normal linear enhancing.And
For in the stratum of diagenesis early stage, geology cementation is not sufficiently spread out also between slit, its internal charges
The montmorillonite that majority disperses for easy aquation, therefore the lacunarity analysis drawn according to well log interpretation, its total pore space can be larger, but
It is that the secondary pore that Log Analysis goes out can not develop or develop seldom, i.e. rock stratum matrix porosity is larger, and secondary pore is not
Development.For having been impacted to it in the rock stratum in diagenesis later stage, various deposition modes, wherein with it is cementing,
Corrosion, explanation, based on recrystallization, fully with cementing, total porosity is small for filling in rock stratum hole now, but due to its by
Geologic process is of the remote past, and under the effect of various external force, secondary pore is relative to develop, " the secondary pore-depth from well log interpretation
It is in degree relation curve " it can be seen that obvious bigger than normal；Also, it is in the rock stratum in diagenesis late period, the clay filled in its hole
Mineral also should be the illite of stable performance, chlorite, therefore can also be verified accordingly from clay mineral analysis.
Upper described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Describe in detail it is bright, should be understood that the foregoing is only the present invention embodiment, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., it should be included in
Within protection scope of the present invention.
Claims (3)
- A kind of 1. method using Logging data analysis sedimentary rock diagenetic stage, it is characterised in that the technology includes following technology Step：（a）In a certain oil-gas exploration and development block, according to geological conditions and goal in research demand, choose with symbolical meaningses Well, acoustic travel time logging, nutural potential logging, gamma ray log, neutron well logging, density log are carried out, it is complete to obtain target well Well section log；（b）Formation porosity analysis is carried out using well-log information, full well section " porosity-depth curve " is drawn, it is determined that just Normal compaction section；Clay mineral type and its corresponding percentage are determined using well-log information；Carry out ground using well-log information Level gives birth to pore analysis, draws full well section " secondary pore-depth curve "；（c）Summary data information, choose total porosity is big, compaction is normal, secondary pore agensis, smectite content Greatly, the section without chlorite is sedimentary rock diagenesis early stage；Choose that total porosity is small but secondary pore growing, illite The section that content is big, chlorite content is big is sedimentary rock diagenesis late stage；Simultaneously by remaining section be defined as sedimentary rock into Rock mid-term stage.
- A kind of 2. method using Logging data analysis sedimentary rock diagenetic stage according to claim 1, it is characterised in that： The step（a）Interior well logging project also includes microelectrode system.
- 3. a kind of method using Logging data analysis sedimentary rock diagenetic stage according to claim 1 or 2, its feature exists In：The step（a）Interior well logging project also includes array sonic log.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610684577.8A CN107762492A (en) | 2016-08-18 | 2016-08-18 | A kind of method using Logging data analysis sedimentary rock diagenetic stage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610684577.8A CN107762492A (en) | 2016-08-18 | 2016-08-18 | A kind of method using Logging data analysis sedimentary rock diagenetic stage |
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| Publication Number | Publication Date |
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| CN107762492A true CN107762492A (en) | 2018-03-06 |
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| CN201610684577.8A Withdrawn CN107762492A (en) | 2016-08-18 | 2016-08-18 | A kind of method using Logging data analysis sedimentary rock diagenetic stage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441405A (en) * | 2021-12-22 | 2022-05-06 | 中国地质大学（北京） | Quantitative evaluation method for secondary pore increasing amplitude based on compaction and cementation pore reducing trend |
-
2016
- 2016-08-18 CN CN201610684577.8A patent/CN107762492A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441405A (en) * | 2021-12-22 | 2022-05-06 | 中国地质大学（北京） | Quantitative evaluation method for secondary pore increasing amplitude based on compaction and cementation pore reducing trend |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |
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| WW01 | Invention patent application withdrawn after publication |