CN107121040A - A kind of method of high-precision coal seam reservoirs structural fracture charting - Google Patents
A kind of method of high-precision coal seam reservoirs structural fracture charting Download PDFInfo
- Publication number
- CN107121040A CN107121040A CN201710234902.5A CN201710234902A CN107121040A CN 107121040 A CN107121040 A CN 107121040A CN 201710234902 A CN201710234902 A CN 201710234902A CN 107121040 A CN107121040 A CN 107121040A
- Authority
- CN
- China
- Prior art keywords
- structural fracture
- observation station
- observation
- fracture
- charting
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Abstract
The invention belongs to CBM exploration and development technical field, it is related to a kind of method of high-precision coal seam reservoirs structural fracture charting.The present invention step be：One, observation station spacing is determined, observation point coordinates is determined on working base map；Two, with GPS location, mark observation station numbering；Three, the construction location of observation station is determined, the cutting relation of structural fracture is judged；Four, measure the structural fracture occurrence of observation station；Five, measure and calculating observation point structural fracture surface density；Six, the aperture in measurement construct crack judges Packing character and charges；Seven, the depth of stratum of measurement data observation station；Eight, observation station is taken pictures, sketch obtains the development characteristics of structural fracture；Step 9, goes to next observation station, repeat step two to step 8.Substantial amounts of measured data can be obtained by the method for the present invention, used using the present invention in the CBM exploration and development block for having coal measures to appear, high-precision Study on Coal reservoir formation crack, and greatly reduce research cost.
Description
Technical field
The invention belongs to CBM exploration and development technical field, it is related to a kind of high-precision coal seam reservoirs structural fracture charting
Method.
Background technology
Coal seam reservoirs structural fracture is coal bed gas migration, the trunk passage of output, and its development characteristics determines that coal seam reservoirs permeate
The height of property, has a major impact to CBM Drilling, pressure break, mining.The research of coal seam reservoirs structural fracture is always coal bed gas field
Focus and difficulties, but less development characteristics for considering structural fracture in CBM exploration and development at present mainly have two
Aspect reason：First, research difficulty is big, the general preservation of coal seam reservoirs is in the certain depth in underground, it is impossible to directly observe, and obtains construction
The data of fissure system are more difficult；Second, research precision is not enough, according to《Coal field geology charting specification》（DZ/T 0175-2014）,
With 1:10000 engineer's scales carry out requirement during geologic mapping：In simple structure area, every sq-km geological observation point number is 20-30
Individual, it is 30-45/km to construct medium area2, structural complex is 45-60/km2, construction pole complex area is>60/km2；Its
Three, research method is limited, and existing research method is mainly collection sample or coring, carries out the experiment and observation in hole-crack；Or
Utilizing works well-logging method, method for numerical simulation, fractal geometry method etc. study structural fracture, but above method has data
Measure less, cost is high, the low problem of precision, it is impossible to meet the actual demand of cbm development.
The content of the invention
The present invention solves the research side for structural fracture that technical problem present in prior art is prior art
Method has that data volume is few, cost is high, the low problem of precision, it is impossible to meet the actual demand of cbm development.
The present invention is for the technical scheme that is used of its technical problem of solution：
A kind of method of high-precision coal seam reservoirs structural fracture charting, is carried out as follows：
Step one, with 1:The terrain and geologic map of 10000 engineer's scales determines the scope of structural fracture charting work as working base map,
Using observation station spacing as 50-100m, the position of the route passed through and observation station is demarcated on the diagram, it is determined that observation point coordinates；
Step 2, according to the observation point coordinates determined, in working site GPS location, delimit measurement range and marks observation
Point numbering, using the mechanical geology lining attitude of rocks, differentiates lithology with reference to card using lithology and records；
Step 3, according to field observation and combines working base map, the construction location of observation station is determined, while judging structural fracture
The not same period time formed, and record；
Step 4, determines to be some the center of circle in observation station, a circle is drawn by radius of 2m；The circle is measured using meter ruler
The length in possessive construction crack and summation in domain, according to parameter calculating observation point structural fracture surface density, and are recorded；
Step 5, using mechanical geology lining observation station different rock-layers, different lithology, not the structural fracture of same period time produce
Shape, and record；
Step 6, using the aperture of mechanical vernier caliper measurement structural fracture, judges filling operation, judges filling species, and
Record；
Step 7, the depth of stratum of the main structural fracture development in observation station position is measured using meter ruler, and is recorded；
Step 8, is taken pictures using camera, field geological work book to observation station, sketch, record, in case checking, counting
With the development characteristics of analysis structural fracture；
Step 9, checks, examines all working completion, go to next observation station, repeat step two to step 8.
Further, in step 3, the construction location refers to any one following situation：Observation station and tomography away from
From the distance of observation station and fold, observation station is in the turn end of fold, and observation station is in the alar part of fold.
Further, in step 4, the parameter of the measuring surface is split for possessive construction on the area and measuring surface of measuring surface
The length of gap, the calculation formula of the structural fracture surface density k is：, wherein, λ is the total length of structural fracture, and δ is
Radius is 2m circular area.
Further, in step 5, the structural fracture occurrence includes tendency and inclination angle.
Further, in step 5, in the case of the bad measurement of tendency of structural fracture, replaceable measurement trend.
Further, in step 6, the filling operation be full-filling, half filling and it is unfilled in any one.
The present invention is had an advantageous effect in that compared with prior art：It can obtain substantial amounts of by the method for the present invention
Measured data, the advantage that can obtain structural fracture in coal seam reservoirs according to data analysis develops direction and structural fracture develops density,
Used using the present invention in the CBM exploration and development block for thering is coal measures to appear, high-precision Study on Coal reservoir formation crack, and
Greatly reduce research cost.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
Embodiment 1
A kind of method of high-precision coal seam reservoirs structural fracture charting, is carried out as follows：
Step one, with 1:The terrain and geologic map of 10000 engineer's scales determines the scope of structural fracture charting work as working base map,
Using observation station spacing as 50m, the position of the route passed through and observation station is demarcated on the diagram, it is determined that observation point coordinates；
Step 2, according to the observation point coordinates determined, in working site GPS location, delimit measurement range and marks observation
Point numbering BC001, using the mechanical geology lining attitude of rocks, differentiates lithology with reference to card using lithology and records；
Step 3, according to field observation and combines working base map, determines observation station BC001 construction location to be following any
Situation：The distance of the distance of observation station and tomography, observation station and fold, observation station is in the turn end of fold, and observation station is in
The alar part of fold；Simultaneously using staggering between structural fracture, limit, mutually cut, follow the trail of, judge to construct using relations such as, transformations
The not same period time that crack is formed, and record；
Step 4, determines to be some the center of circle in observation station BC001, a circle is drawn by radius of 2m；Should using meter ruler measurement
The length in possessive construction crack and summation in border circular areas, according to parameter calculating observation point structural fracture surface density k, it calculates public
Formula is：, wherein, λ is the total length of structural fracture, and δ is the circular area that radius is 2m, and carries out result of calculation record；
Step 5, using mechanical geology lining observation station BC001 in different rock-layers, different lithology, the construction of not same period time
Crack occurrence, structural fracture occurrence includes tendency and inclination angle, and records；
Step 6, using the aperture of mechanical vernier caliper measurement structural fracture, judges filling operation, judges filling species, and
Record；
Step 7, the depth of stratum of the main structural fracture developments of observation station BC001 is measured using meter ruler, and is recorded；
Step 8, is taken pictures using camera, field geological work book to observation station, sketch, record, in case checking, counting
With the development characteristics of analysis structural fracture；
Step 9, checks, examines all working completion, go to next observation station BC002, repeat step two to step 8.
According to above-mentioned steps, the charting data form for obtaining observation station BC001 and observation station BC002 is as follows：
According to form it can be seen that the developmental state of structural fracture is split for the set constructor of BC001, BC002 observation station major developmental 2
Gap, the aperture of structural fracture is 2-3mm, calcite full-filling type and the packed type of mud stone half；By calculating, the face of structural fracture
Density is>40, structural fracture is more developed, the predominant direction of structural fracture for NE to NW to.Received according to same techonosphere
Identical tectonic stress, produces the principle of similar structural fracture, the predominant direction of coal seam reservoirs structural fracture for NE to and NW
To structural fracture is more developed.
Embodiment 2
A kind of method of high-precision coal seam reservoirs structural fracture charting, is carried out as follows：
Step one, with 1:The terrain and geologic map of 10000 engineer's scales determines the scope of structural fracture charting work as working base map,
Using observation station spacing as 50m, the position of the route passed through and observation station is demarcated on the diagram, it is determined that observation point coordinates；
Step 2, according to the observation point coordinates determined, in working site GPS location, delimit measurement range and marks observation
Point numbering BC003, using the mechanical geology lining attitude of rocks, differentiates lithology with reference to card using lithology and records；
Step 3, according to field observation and combines working base map, determines observation station BC003 construction location to be following any
Situation：The distance of the distance of observation station and tomography, observation station and fold, observation station is in the turn end of fold, and observation station is in
The alar part of fold；Simultaneously using staggering between structural fracture, limit, mutually cut, follow the trail of, judge to construct using relations such as, transformations
The not same period time that crack is formed, and record；
Step 4, determines to be some the center of circle in observation station BC003, a circle is drawn by radius of 2m；Should using meter ruler measurement
The length in possessive construction crack and summation in border circular areas, according to parameter calculating observation point BC003 structural fracture surface density k, its
Calculation formula is：, wherein, λ is the total length of structural fracture, and δ is the circular area that radius is 2m, and carries out calculating knot
Fruit records；
Step 5, using mechanical geology lining observation station BC003 in different rock-layers, different lithology, the construction of not same period time
Crack occurrence, structural fracture occurrence includes tendency and inclination angle, and records；
Step 6, using the aperture of mechanical vernier caliper measurement structural fracture, judges filling operation, judges filling species, and
Record；
Step 7, the depth of stratum of the main structural fracture developments of observation station BC003 is measured using meter ruler, and is recorded；
Step 8, is taken pictures using camera, field geological work book to observation station BC003, sketch, record, in case check,
The development characteristics of statistics and analysis structural fracture；
Step 9, checks, examines all working completion, go to next observation station BC004, repeat step two to step 8.
According to above-mentioned steps, the charting data form for obtaining observation station BC003 and observation station BC004 is as follows：
According to form it can be seen that the developmental state of structural fracture is split for BC003, BC004 observation station major developmental 1-2 set constructors
Gap, the aperture of structural fracture is 1-0.5mm, unfilled；By calculating, the surface density of structural fracture is<40, structural fracture compared with
Agensis, the predominant direction of structural fracture for NE to.Identical tectonic stress is received according to same techonosphere, produced similar
The principle of structural fracture, the predominant direction of coal seam reservoirs structural fracture is NE to structural fracture is compared with agensis.
It is described above, only it is embodiments of the invention, any formal limitation not is done to the present invention, it is any to be familiar with sheet
Technical professional, without departing from the scope of the present invention, makes more when using the technology contents of the disclosure above
Dynamic or modification equivalent variations equivalent embodiments, as long as being the content without departing from technical solution of the present invention, still fall within the present invention
In the range of technical scheme.
Claims (6)
1. a kind of method of high-precision coal seam reservoirs structural fracture charting, it is characterised in that carry out as follows：
Step one, with 1:The terrain and geologic map of 10000 engineer's scales determines the scope of structural fracture charting work as working base map,
Using observation station spacing as 50-100m, the position of the route passed through and observation station is demarcated on the diagram, it is determined that observation point coordinates；
Step 2, according to the observation point coordinates determined, in working site GPS location, delimit measurement range and marks observation
Point numbering, using the mechanical geology lining attitude of rocks, differentiates lithology with reference to card using lithology and records；
Step 3, according to field observation and combines working base map, the construction location of observation station is determined, while judging structural fracture
The not same period time formed, and record；
Step 4, determines to be some the center of circle in observation station, a circle is drawn by radius of 2m；The circle is measured using meter ruler
The length in possessive construction crack and summation in domain, according to parameter calculating observation point structural fracture surface density, and are recorded；
Step 5, using mechanical geology lining observation station different rock-layers, different lithology, not the structural fracture of same period time produce
Shape, and record；
Step 6, using the aperture of mechanical vernier caliper measurement structural fracture, judges filling operation, judges filling species, and
Record；
Step 7, the depth of stratum of the main structural fracture development in observation station position is measured using meter ruler, and is recorded；
Step 8, is taken pictures using camera, field geological work book to observation station, sketch, record, in case checking, counting
With the development characteristics of analysis structural fracture；
Step 9, checks, examines all working completion, go to next observation station, repeat step two to step 8.
2. the method for a kind of high-precision coal seam reservoirs structural fracture charting according to claim 1, it is characterised in that in step
In three, the construction location refers to any one following situation：The distance of the distance of observation station and tomography, observation station and fold,
Observation station is in the turn end of fold, and observation station is in the alar part of fold.
3. the method for a kind of high-precision coal seam reservoirs structural fracture charting according to claim 1, it is characterised in that in step
In four, the parameter of the measuring surface is the length in possessive construction crack on the area and measuring surface of measuring surface, the structural fracture
Surface density k calculation formula is：, wherein, λ is the total length of structural fracture, and δ is the circular area that radius is 2m.
4. the method for a kind of high-precision coal seam reservoirs structural fracture charting according to claim 1, it is characterised in that in step
In five, the structural fracture occurrence includes tendency and inclination angle.
5. the method for a kind of high-precision coal seam reservoirs structural fracture charting according to claim 3, it is characterised in that in step
In five, in the case of the bad measurement of tendency of structural fracture, replaceable measurement trend.
6. the method for a kind of high-precision coal seam reservoirs structural fracture charting according to claim 1, it is characterised in that in step
In six, the filling operation be full-filling, half filling and it is unfilled in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234902.5A CN107121040B (en) | 2017-04-12 | 2017-04-12 | A kind of method of high-precision coal seam reservoirs structural fracture charting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234902.5A CN107121040B (en) | 2017-04-12 | 2017-04-12 | A kind of method of high-precision coal seam reservoirs structural fracture charting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107121040A true CN107121040A (en) | 2017-09-01 |
| CN107121040B CN107121040B (en) | 2019-06-21 |
Family
ID=59725647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234902.5A Expired - Fee Related CN107121040B (en) | 2017-04-12 | 2017-04-12 | A kind of method of high-precision coal seam reservoirs structural fracture charting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107121040B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005333020A (en) * | 2004-05-20 | 2005-12-02 | National Institute Of Advanced Industrial & Technology | Open-type explosionproof container |
| GB2467651A (en) * | 2009-02-10 | 2010-08-11 | Charlton & Jenrick Ltd | A stove with a panel supplying air to a gap around a baffle |
| CN102536223A (en) * | 2012-01-16 | 2012-07-04 | 中国石油大学(华东) | Rapid calculation method for porosity of coal seam fracture |
| CN103163134A (en) * | 2013-02-16 | 2013-06-19 | 肖建新 | Coal reservoir fracture observation submicroscopic analysis technology |
| CN105093352A (en) * | 2015-08-11 | 2015-11-25 | 武汉迈格睿地质环境科技有限公司 | Method for measuring and calculating rock mass fracture rate in field |
| CN105223337A (en) * | 2015-10-22 | 2016-01-06 | 重庆大学 | The three-dimensional simulation method of goaf cracked district form |
-
2017
- 2017-04-12 CN CN201710234902.5A patent/CN107121040B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005333020A (en) * | 2004-05-20 | 2005-12-02 | National Institute Of Advanced Industrial & Technology | Open-type explosionproof container |
| GB2467651A (en) * | 2009-02-10 | 2010-08-11 | Charlton & Jenrick Ltd | A stove with a panel supplying air to a gap around a baffle |
| CN102536223A (en) * | 2012-01-16 | 2012-07-04 | 中国石油大学(华东) | Rapid calculation method for porosity of coal seam fracture |
| CN103163134A (en) * | 2013-02-16 | 2013-06-19 | 肖建新 | Coal reservoir fracture observation submicroscopic analysis technology |
| CN105093352A (en) * | 2015-08-11 | 2015-11-25 | 武汉迈格睿地质环境科技有限公司 | Method for measuring and calculating rock mass fracture rate in field |
| CN105223337A (en) * | 2015-10-22 | 2016-01-06 | 重庆大学 | The three-dimensional simulation method of goaf cracked district form |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107121040B (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Witte et al. | Fracture evolution in oil-producing sills of the Rio Grande Valley, northern Neuquén Basin, Argentina | |
| CN105988137B (en) | Logging character curve Reconstruction method of the sand-conglomerate body based on Core-Calibrated Logging | |
| CN105629325B (en) | Foreland basin alluvial fan meticulous depiction and Forecasting Methodology | |
| CN103293562A (en) | Method and device for determining carbonate reservoir geological reserves | |
| CN105549082B (en) | Ultra-deep Carbonate Reservoir three-dimensional geological mechanics field method for building up and system | |
| CN109324355A (en) | A kind of pegmatite type rare metal method of prospecting | |
| Voeckler et al. | Estimating regional-scale fractured bedrock hydraulic conductivity using discrete fracture network (DFN) modeling | |
| CN104007485A (en) | Method for establishing complex pore shale rock physical model | |
| CN102707325A (en) | Azimuth gamma measuring method and equipment | |
| CN103234525B (en) | Geology recording instrument | |
| CN109710891A (en) | A method of based on flow unit classified calculating sandstone-type uranium mineralization with respect sand body permeability | |
| CN101315428B (en) | High resolution prospecting method of large-ventage clastic rock deposition stratum based on horizontal wave velocity | |
| Townsend et al. | Jointing around magmatic dikes as a precursor to the development of volcanic plugs | |
| Hartkamp‐Bakker et al. | Permeability patterns in point bar deposits: Tertiary Loranca Basin, central Spain | |
| CN109458176A (en) | The prediction technique and its application of carbonate reservoir pressure | |
| Rudolph et al. | Upper Cretaceous sequence stratigraphy of the Rock Springs uplift, Wyoming | |
| CN102435295A (en) | Method for detecting elastic wave velocity of tunnel surrounding rock body | |
| CN107121040B (en) | A kind of method of high-precision coal seam reservoirs structural fracture charting | |
| CN103675945B (en) | A kind of method and apparatus of the saturation degree for determining hole type reservoir | |
| Shelley et al. | Outcrop-based reservoir characterization and modeling of an Upper Mississippian mixed carbonate–siliciclastic ramp, northeastern Oklahoma | |
| Shelley et al. | Reservoir characterization and modeling of a subsurface Meramec analog from a quarry in northeastern Oklahoma | |
| RU2363966C1 (en) | Method of survey and assessment of reserves of oil deposits in tight fissured stringers developed in oil source strata | |
| Maldonado et al. | Mechanical properties of the Niobrara formation | |
| Dominguez et al. | Understanding 3-D distribution of organic-rich units in the Vaca Muerta Formation | |
| Gandhi et al. | Low resistivity petrophysical mapping expands the terry (sussex) play in wattenberg field, Colorado |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 |