CN105551083A - Method for depicting relationship between horizontal well track and strata - Google Patents
Method for depicting relationship between horizontal well track and strata Download PDFInfo
- Publication number
- CN105551083A CN105551083A CN201510901124.1A CN201510901124A CN105551083A CN 105551083 A CN105551083 A CN 105551083A CN 201510901124 A CN201510901124 A CN 201510901124A CN 105551083 A CN105551083 A CN 105551083A
- Authority
- CN
- China
- Prior art keywords
- horizontal well
- strata
- track
- sand body
- well
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/05—Geographic models
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Software Systems (AREA)
- Remote Sensing (AREA)
- Computer Graphics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a method for depicting the relationship between horizontal well track and strata, comprising the following steps: (1) acquiring the position information of a horizontal well on an oil and gas reservoir structure to get a geological data body of an area where the horizontal well is located; (2) standardizing the well logging curve of vertical wells and pilot hole wells in the area where the horizontal well is located; (3) performing stratigraphic comparison to determine the top and bottom limits of a drilling target stratum of the horizontal well, and building a target stratum top and bottom structure model; (4) selecting a vertical well adjacent to the horizontal well, and conducting multi-well fine sand body comparison to form a sand body fence diagram; (5) building a 3D sand body model; (6) collecting sand body slices along the horizontal well track in the 3D sand body model to get an initial model of the relationship between horizontal well track and strata; and (7) correcting sand body slices around the horizontal well track to realize visual representation and fine depiction of the relationship between horizontal well track and strata. By using the method, fine depiction of the relationship between horizontal well track and strata is realized.
Description
Technical field
The invention belongs to High angle/horizontal wellbore logging assessment technique field, relate to a kind of method of portraying horizontal well track and Relation To Strata.
Background technology
Along with the gradual perfection of horizontal well development technology, horizontal well quantity significantly increases, and while large-scale development horizontal well, it is also proposed new demand, need the horizontal wellbore logging study on evaluation way carrying out system badly to well logging.It is exactly to understand the geometric relationship between well track and stratum that horizontal wellbore logging evaluates top priority, determines whether well track bores and encounters zone of interest, at what position of zone of interest, with the distance etc. of zone of interest upper and lower interface.
Interpretation procedure at present for horizontal well track and Relation To Strata mainly contains two dimensional cross-section sciagraphy and three-dimensional geological modeling method.Two dimensional cross-section sciagraphy utilizes contiguous straight well logging trace to project in the main orientation of horizontal well track to carry out the meticulous detail correlation of reservoir bed, and on pickup stratum, a series of key sequence boundary point draws the relation on well track and stratum.The method to some extent solves the mutual relationship problem on horizontal well track and stratum, but also there is the limitation of self: 1) when well track passes bed boundary with low angle, the bed boundary that horizontal wellbore logging Curves reflects is not a point, but retardation is one " interval ", be difficult to determine interface point accurately; 2) be close to straight well well-log information when projecting to the main orientation of Horizontal Well track, if stratum has certain inclination angle and gradual change even phase transformation, the curve after projection just loses the structural attitude of its representative.Three-dimensional geological modeling method utilizes the contiguous straight well of horizontal well to adopt mathematical algorithm to carry out extrapolation based on principle during geology etc. and interpolation sets up three-dimensional properties model, determines along the attribute information on horizontal well path.It is relatively mild that the method is applicable to tectonic structure, the stratum that sand-body distribution is stable, if to exist in stratum in the sand body of phacoid shape or muddy intercalation, stratum top/bottom part have and the complicated geological problem such as to degrade, just be difficult to the truth on accurate description stratum, do not reach the relation on meticulous depiction well track and stratum.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of method of portraying horizontal well track and Relation To Strata, the method can realize the meticulous depiction of horizontal well track and Relation To Strata.
For achieving the above object, method of portraying horizontal well track and Relation To Strata of the present invention comprises the following steps:
1) obtain the positional information of horizontal well to be portrayed on hydrocarbon reservoir structure, obtain the geological data volume of horizontal well region according to the positional information of horizontal well to be portrayed on hydrocarbon reservoir structure;
2) to the straight well of horizontal well region with lead a well and carry out horizontal wellbore logging log normalization;
3) in the geological data volume of horizontal well region, carry out Strata Comparison, determine that Horizontal Well Drilling meets the bottom and top beds of zone of interest, then set up tectonic model at the bottom of zone of interest top according to the bottom and top beds of Horizontal Well Drilling chance zone of interest;
4) according to step 3) the zone of interest Strata Comparison result that obtains, choose the contiguous straight well of horizontal well, then many wells correlation of sand bodies is carried out to the contiguous straight well of horizontal well and form sand body panel map;
5) according to step 4) between restraint layer, sand body tendency sets up three-dimensional sandbody model in the sand body panel map that formed;
6) acquisition step 5) in set up three-dimensional sandbody model in cut into slices along the sand body of horizontal well track, obtain the initial model of horizontal well track and Relation To Strata;
7) according to horizontal wellbore logging curve and step 6) initial model of the horizontal well track set up and Relation To Strata, adopt man-machine interaction mode to revise the sand body section around horizontal well track, realize visual sign and the meticulous depiction of horizontal well track and Relation To Strata.
Adopt frequency histogram method to the straight well of horizontal well region and lead a well and carry out logging trace standardization.
Step 3) according to based on reference lamina, etc. elevation contrast be divided into the auxiliary variation tendency in conjunction with logging trace and carry out Strata Comparison.
Tectonic model at the bottom of golden number method establishment zone of interest top in the bottom and top beds of meeting zone of interest according to Horizontal Well Drilling adopts gram.
Many wells correlation of sand bodies is carried out to deposition principle during horizontal well contiguous straight well employing geology etc. and forms sand body panel map.
Step 5) according to step 4) between restraint layer, sand body tendency adopts nearest neighbor algorithm to set up three-dimensional sandbody model in the sand body panel map that formed.
Step 6) in acquisition step 5) in the concrete operations of cutting into slices along the sand body of horizontal well track in the three-dimensional sandbody model set up be: the hole drift angle obtaining horizontal well according to the well-log information of horizontal well, position angle and well depth, minimum curvature radius method is adopted to draw horizontal well track, then horizontal well track is adopted at equal intervals, obtain space finite points, again described space finite points is projected on surface level, must be projected point range, then vertical columns is formed according to projection point range and space finite points, finally by vertical columns and step 5) the middle three-dimensional sandbody model find intersection set up, must cut into slices along the sand body of horizontal well track.
The present invention has following beneficial effect:
The method of meticulous depiction horizontal well track of the present invention and Relation To Strata is in the process of portraying, three-dimensional sandbody model is set up based on the Strata Comparison carried out in the geological data volume of horizontal well region, the initial model of horizontal well track and Relation To Strata is set up again according to the sand body section along horizontal well track in three-dimensional sandbody model, then described initial model is revised, thus efficiently solve in the stratum of Horizontal Well Drilling chance the sand body or muddy intercalation that exist in phacoid shape, stratum top/bottom part has the geological problem of complexity such as degrading, realize the meticulous depiction of horizontal well track and Relation To Strata, there is good effect.
Accompanying drawing explanation
Fig. 1 is the sand body panel map in embodiments of the invention one;
Fig. 2 is the schematic diagram of three-dimensional sandbody model in embodiments of the invention one;
Fig. 3 is the sand body slice map extracted in three-dimensional sandbody model in embodiments of the invention one along horizontal well track;
Fig. 4 is the schematic diagram of horizontal well track and the Relation To Strata portrayed in embodiments of the invention one;
Fig. 5 is process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
The method of meticulous depiction horizontal well track of the present invention and Relation To Strata comprises the following steps:
1) obtain the positional information of horizontal well to be portrayed on hydrocarbon reservoir structure, obtain the geological data volume of horizontal well region according to the positional information of horizontal well to be portrayed on hydrocarbon reservoir structure;
2) to the straight well of horizontal well region with lead a well and carry out logging trace standardization;
3) in the geological data volume of horizontal well region, carry out Strata Comparison, determine that Horizontal Well Drilling meets the bottom and top beds of zone of interest, then set up tectonic model at the bottom of zone of interest top according to the bottom and top beds of Horizontal Well Drilling chance zone of interest;
4) according to step 3) the zone of interest Strata Comparison result that obtains, choose the contiguous straight well of horizontal well, then many wells correlation of sand bodies is carried out to the contiguous straight well of horizontal well and form sand body panel map;
5) according to step 4) between restraint layer, sand body tendency sets up three-dimensional sandbody model in the sand body panel map that formed;
6) acquisition step 5) in set up three-dimensional sandbody model in cut into slices along the sand body of horizontal well track, obtain the initial model of horizontal well track and Relation To Strata;
7) according to horizontal wellbore logging curve and step 6) initial model of the horizontal well track set up and Relation To Strata, adopt man-machine interaction mode to revise the sand body section around horizontal well track, realize visual sign and the meticulous depiction of horizontal well track and Relation To Strata.
Adopt frequency histogram method to the straight well of horizontal well region and lead a well and carry out logging trace standardization.
Step 3) according to based on reference lamina, etc. elevation contrast be divided into the auxiliary variation tendency in conjunction with logging trace and carry out Strata Comparison.
Tectonic model at the bottom of golden number method establishment zone of interest top in the bottom and top beds of meeting zone of interest according to Horizontal Well Drilling adopts gram.
Many wells correlation of sand bodies is carried out to deposition principle during horizontal well contiguous straight well employing geology etc. and forms sand body panel map.
Step 5) according to step 4) between restraint layer, sand body tendency adopts nearest neighbor algorithm to set up three-dimensional sandbody model in the sand body panel map that formed.
Step 6) in acquisition step 5) in the concrete operations of cutting into slices along the sand body of horizontal well track in the three-dimensional sandbody model set up be: the hole drift angle obtaining horizontal well according to the well-log information of horizontal well, position angle and well depth adopt minimum curvature radius method to draw horizontal well track, then horizontal well track is adopted at equal intervals, obtain space finite points, again described space finite points is projected on surface level, must be projected point range, then vertical columns is formed according to projection point range and space finite points, finally by vertical columns and step 5) the middle three-dimensional sandbody model find intersection set up, must cut into slices along the sand body of horizontal well track.
Embodiment one
Before the well track and Relation To Strata of meticulous depiction C_H horizontal well, first the position of C_H horizontal well on hydrocarbon reservoir structure is determined, the well logging of analyzed area straight well, geology, drilling well and mud logging technique, be familiar with the geological data volume of C_H horizontal well region, and carry out the standardization of logging trace, set up C_H Horizontal Well Drilling and meet tectonic model at the bottom of the top of zone of interest.
On the basis of Strata Comparison, choose A well, B well and C well three mouthfuls of wells and carry out meticulous correlation of sand bodies, wherein, C well be horizontal well C_H lead a well, horizontal well C_H well track creeps into along A well direction, sets up sand body panel map, as shown in Figure 1; Known from sand body panel map, the zone of interest that Horizontal Well Drilling is met there is no muddy intercalation on C well (depth measurement 3594.87 ~ 3605.13m) and A well (depth measurement 3599.5 ~ 3603.87m), and B well exists muddy intercalation at depth measurement 3596.8 ~ 3597.2m and 3598.5 ~ 3599.2m well section.
Sand body panel map is utilized to retrain three-dimensional model interlayer sand body tendency based on the mode of many sections Complete Bind, nearest neighbor algorithm is adopted to set up three-dimensional sandbody model, as shown in Figure 2, the hole drift angle that recycling horizontal wellbore logging is measured, position angle and well depth, then minimum curvature radius method is adopted to draw horizontal well track, and extract in three-dimensional sandbody model and cut into slices along the sand body of C_H horizontal well track, set up the initial model of C_H horizontal well track and Relation To Strata, wherein, described initial model as shown in Figure 3, as shown in Figure 3, after C_H horizontal well enters zone of interest, can bore in zone of interest and run into two shale bands, because A well and C well meet objective interval without muddy intercalation at Horizontal Well Drilling, if adopt A well and the single sand body section of C well to portray C_H horizontal well track and Relation To Strata, then can not portray two shale bands in zone of interest, and there are two muddy intercalations at Horizontal Well Drilling chance objective interval in B well, after adding B well and carrying out correlation of sand bodies, three-dimensional sandbody model is set up after adopting many sections to retrain, extract in three-dimensional sandbody model along well track sand body section just can depict Horizontal Well Drilling chance zone of interest in two shale bands.
Due to the inter-wells predicting that the sand body section of extracting in three-dimensional sandbody model along C_H horizontal well track is the contiguous straight well of horizontal well, on the basis of Fig. 3, Bound moisture horizontal well logging trace adopts the mode of man-machine interaction to carry out local correction to the sand body section near well track, such as, thickness of interlayer adjustment, interlayer position fine setting and pinching length adjustment, finally realize visual sign and the meticulous depiction of horizontal well track and Relation To Strata, as shown in Figure 4.Through the process of 26 mouthfuls of real well data, the horizontal well track after meticulous depiction and Relation To Strata, have good consistance with geologic understanding, demonstrates validity of the present invention.
It is relatively mild that the present invention is not only applicable to tectonic structure, the stratum that sand-body distribution is stable, is applicable to exist in stratum sand body in phacoid shape or muddy intercalation yet, stratum top/bottom part has and the complicated geological problem such as to degrade, have application value widely.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. a method for meticulous depiction horizontal well track and Relation To Strata, is characterized in that, comprises the following steps:
1) obtain the positional information of horizontal well to be portrayed on hydrocarbon reservoir structure, obtain the geological data volume of horizontal well region according to the positional information of horizontal well to be portrayed on hydrocarbon reservoir structure;
2) to the straight well of horizontal well region with lead a well and carry out logging trace standardization;
3) in the geological data volume of horizontal well region, carry out Strata Comparison, determine that Horizontal Well Drilling meets the bottom and top beds of zone of interest, then set up tectonic model at the bottom of zone of interest top according to the bottom and top beds of Horizontal Well Drilling chance zone of interest;
4) according to step 3) the zone of interest Strata Comparison result that obtains, choose the contiguous straight well of horizontal well, then many wells correlation of sand bodies is carried out to the contiguous straight well of horizontal well and form sand body panel map;
5) according to step 4) between restraint layer, sand body tendency sets up three-dimensional sandbody model in the sand body panel map that formed;
6) acquisition step 5) in set up three-dimensional sandbody model in cut into slices along the sand body of horizontal well track, obtain the initial model of horizontal well track and Relation To Strata;
7) according to horizontal wellbore logging curve and step 6) initial model of the horizontal well track set up and Relation To Strata, adopt man-machine interaction mode to revise the sand body section around horizontal well track again, realize visual sign and the meticulous depiction of horizontal well track and Relation To Strata.
2. the method for meticulous depiction horizontal well track according to claim 1 and Relation To Strata, is characterized in that, adopts frequency histogram method to the straight well of horizontal well region and leads a well and carry out logging trace standardization.
3. the method for meticulous depiction horizontal well track according to claim 1 and Relation To Strata, is characterized in that, step 3) according to based on reference lamina, etc. elevation contrast be divided into the auxiliary variation tendency in conjunction with logging trace and carry out Strata Comparison.
4. the method for meticulous depiction horizontal well track according to claim 1 and Relation To Strata, is characterized in that, tectonic model at the bottom of golden number method establishment zone of interest top in the bottom and top beds of meeting zone of interest according to Horizontal Well Drilling adopts gram.
5. the method for meticulous depiction horizontal well track according to claim 1 and Relation To Strata, is characterized in that, carries out many wells correlation of sand bodies form sand body panel map to deposition principle during horizontal well contiguous straight well employing geology etc.
6. the method for meticulous depiction horizontal well track according to claim 1 and Relation To Strata, it is characterized in that, step 5) according to step 4) between restraint layer, sand body tendency adopts nearest neighbor algorithm to set up three-dimensional sandbody model in the sand body panel map that formed.
7. the method for meticulous depiction horizontal well track according to claim 1 and Relation To Strata, it is characterized in that, step 6) in acquisition step 5) in the concrete operations of cutting into slices along the sand body of horizontal well track in the three-dimensional sandbody model set up be: the hole drift angle obtaining horizontal well according to the well-log information of horizontal well, position angle and well depth adopt minimum curvature radius method to draw horizontal well track, then horizontal well track is adopted at equal intervals, obtain space finite points, again described space finite points is projected on surface level, must be projected point range, then vertical columns is formed according to projection point range and space finite points, finally by vertical columns and step 5) the middle three-dimensional sandbody model find intersection set up, must cut into slices along the sand body of horizontal well track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901124.1A CN105551083B (en) | 2015-12-08 | 2015-12-08 | A kind of method for portraying horizontal well track and Relation To Strata |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901124.1A CN105551083B (en) | 2015-12-08 | 2015-12-08 | A kind of method for portraying horizontal well track and Relation To Strata |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105551083A true CN105551083A (en) | 2016-05-04 |
| CN105551083B CN105551083B (en) | 2018-03-13 |
Family
ID=55830258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510901124.1A Active CN105551083B (en) | 2015-12-08 | 2015-12-08 | A kind of method for portraying horizontal well track and Relation To Strata |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105551083B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154322A (en) * | 2016-08-02 | 2016-11-23 | 中国石油天然气集团公司 | Log curve correction method and apparatus |
| CN106869915A (en) * | 2017-03-14 | 2017-06-20 | 中国石油天然气股份有限公司 | Horizontal well interval interlayer prediction method and device |
| CN106990448A (en) * | 2017-04-05 | 2017-07-28 | 中国石油天然气股份有限公司 | Sea-facies clastic rock horizontal well interlayer logging interpretation method and device |
| CN108961352A (en) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of method for drafting of well logging curve |
| CN111090918A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Design method and system for horizontal well borehole trajectory |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486088A (en) * | 2010-12-05 | 2012-06-06 | 西软软件股份有限公司 | Horizontal well geosteering system |
| US20130199789A1 (en) * | 2010-10-27 | 2013-08-08 | Yueming Liang | Method and System for Fracturing a Formation |
| CN104615803A (en) * | 2014-12-10 | 2015-05-13 | 中国石油化工股份有限公司 | Three-dimensional horizontal well borehole trajectory design method and system |
| CN104809277A (en) * | 2015-04-14 | 2015-07-29 | 中国石油天然气股份有限公司 | Geological modeling method for horizontal well of ultra-low permeability tight reservoir |
-
2015
- 2015-12-08 CN CN201510901124.1A patent/CN105551083B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130199789A1 (en) * | 2010-10-27 | 2013-08-08 | Yueming Liang | Method and System for Fracturing a Formation |
| CN102486088A (en) * | 2010-12-05 | 2012-06-06 | 西软软件股份有限公司 | Horizontal well geosteering system |
| CN104615803A (en) * | 2014-12-10 | 2015-05-13 | 中国石油化工股份有限公司 | Three-dimensional horizontal well borehole trajectory design method and system |
| CN104809277A (en) * | 2015-04-14 | 2015-07-29 | 中国石油天然气股份有限公司 | Geological modeling method for horizontal well of ultra-low permeability tight reservoir |
Non-Patent Citations (2)
| Title |
|---|
| 李一超等: "水平井地质导向录井关键技术", 《石油勘探与开发》 * |
| 罗荣等: "水平井井眼轨迹分析及其应用探讨", 《中外能源》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154322A (en) * | 2016-08-02 | 2016-11-23 | 中国石油天然气集团公司 | Log curve correction method and apparatus |
| CN106869915A (en) * | 2017-03-14 | 2017-06-20 | 中国石油天然气股份有限公司 | Horizontal well interval interlayer prediction method and device |
| CN106869915B (en) * | 2017-03-14 | 2020-05-08 | 中国石油天然气股份有限公司 | Horizontal well interval interlayer prediction method and device |
| CN106990448A (en) * | 2017-04-05 | 2017-07-28 | 中国石油天然气股份有限公司 | Sea-facies clastic rock horizontal well interlayer logging interpretation method and device |
| CN106990448B (en) * | 2017-04-05 | 2018-11-16 | 中国石油天然气股份有限公司 | Sea-facies clastic rock horizontal well interlayer logging interpretation method and device |
| CN108961352A (en) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of method for drafting of well logging curve |
| CN111090918A (en) * | 2018-10-24 | 2020-05-01 | 中国石油化工股份有限公司 | Design method and system for horizontal well borehole trajectory |
| CN111090918B (en) * | 2018-10-24 | 2023-01-24 | 中国石油化工股份有限公司 | Design method and system for horizontal well borehole trajectory |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105551083B (en) | 2018-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104047597B (en) | Oily mud shale stratum log standardized method | |
| CN105551083A (en) | Method for depicting relationship between horizontal well track and strata | |
| CN105701319B (en) | A kind of microfacies modeling method under horizontal well rule well pattern | |
| CN109870719B (en) | Well position layout method, device and system for carbonate rock tight thin reservoir | |
| CN105651676A (en) | Reservoir heterogeneity characterization method under regular development well pattern of horizontal wells | |
| CN105735978A (en) | Well spacing method for carbonate interlayer karst reservoir | |
| CN105184864A (en) | Site stratum three-dimensional geological structure model generation method for natural foundation replacement quantities calculation | |
| CN109541685B (en) | River channel sand body identification method | |
| CN105093307B (en) | The oblique true formation thickness acquiring method of Lower Paleozoic strata | |
| CN103472484A (en) | Horizontal well track optimization method based on RS three-dimensional sensitivity seismic attribution analysis | |
| CN107448197B (en) | Method for quantitatively identifying spatial development of channeling channel of marine sandstone reservoir | |
| CN104809266A (en) | Spline based accurate predicating method for face coal seam occurrence condition | |
| CN105005077A (en) | Thin layer thickness prediction method with combination of real drilling wells and virtual wells under rare well condition | |
| CN111624677B (en) | Compact sandstone gas reservoir single-phase river channel sand body boundary depicting method | |
| CN106338761A (en) | Three-dimensional embedded entity modeling method | |
| CN108121009A (en) | Development late stage complex fault block velocity-variant depth mapping method | |
| CN110568493B (en) | Identification method of complex fault block basin hidden fault | |
| CN111260791B (en) | Method for updating geosteering model | |
| CN104251135A (en) | Highly-deviated well space in-place method | |
| Wilson et al. | Fracture model of the Upper Freeport coal: Marshall County West Virginia pilot ECBMR and CO2 sequestration site | |
| Lyu et al. | Classification, modeling and characterization of marine carbonate paleokarst reservoirs in Tahe Oilfield, Tarim Basin, China | |
| CN109283574A (en) | Low frequency model construction method and computer readable storage medium | |
| CN107991702B (en) | The simple accurate determination method of normal fault timing | |
| Pengfei et al. | Distribution of remaining oil based on a single sand body analysis: a case study of Xingbei Oilfield | |
| CN113640875B (en) | Deposition phase identification method, device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |