NL1043472A - Fracability evaluation method for coal reservoir - Google Patents
Fracability evaluation method for coal reservoir Download PDFInfo
- Publication number
- NL1043472A NL1043472A NL1043472A NL1043472A NL1043472A NL 1043472 A NL1043472 A NL 1043472A NL 1043472 A NL1043472 A NL 1043472A NL 1043472 A NL1043472 A NL 1043472A NL 1043472 A NL1043472 A NL 1043472A
- Authority
- NL
- Netherlands
- Prior art keywords
- coal reservoir
- calculating
- fracability
- coal
- evaluated
- Prior art date
Links
- 239000003245 coal Substances 0.000 title abstract 11
- 238000011156 evaluation Methods 0.000 title abstract 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 4
- 239000011435 rock Substances 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- 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
-
- 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
- E21B49/006—Measuring wall stresses in the borehole
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention discioses a fracability evaluation method for a coal reservoir, including the following steps: Step 1: calculating the brittleness index BI of a coal reservoir to be evaluated; Step 2: calculating the fracture toughness Kc of the 5 coal reservoir under a confining pressure; Step 3: calculating the thickness Eh of the coal reservoir to be evaluated; Step 4: calculating the elastic modulus difference E k' between the coal reservoir and the surrounding rock; Step 5: calculating the net pressure coefficient a, of the coal reservoir to be evaluated; Step 6: calculating the moisture content Mad of coal-rock; Step 7: calculating the fracability evaluation score 10 Fra, of the coal reservoir; Step 8: rating the fracability of the coal reservoir. The main advantages of the present invention are that, the adopted parameters are easy to obtain, the difficulty in implementing fracability evaluation on a coal reservoir is low, various factors that influence fracturing of a coal reservoir are comprehensively considered, and fracability can be accurately evaluated. It provides important instructions for later 15 development of coalbed methane, effectively avoids construction on an invalid well location, and saves the development cost of coalbed methane. 1043472
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811398934.XA CN109558663B (en) | 2018-11-22 | 2018-11-22 | Coal reservoir fracturing property evaluation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL1043472A true NL1043472A (en) | 2020-06-03 |
| NL1043472B1 NL1043472B1 (en) | 2020-09-04 |
Family
ID=65867067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL1043472A NL1043472B1 (en) | 2018-11-22 | 2019-11-19 | Fracability evaluation method for coal reservoir |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN109558663B (en) |
| BE (1) | BE1026492B1 (en) |
| LU (1) | LU101489B1 (en) |
| NL (1) | NL1043472B1 (en) |
| WO (1) | WO2020103414A1 (en) |
| ZA (1) | ZA202000093B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109558663B (en) * | 2018-11-22 | 2020-04-03 | 中国矿业大学 | Coal reservoir fracturing property evaluation method |
| CN110805419B (en) * | 2019-10-11 | 2022-08-02 | 长江大学 | Large-liquid-volume large-displacement large-pad-fluid low-sand-ratio slickwater volume fracturing method |
| CN111425193B (en) * | 2020-01-21 | 2020-12-01 | 东北石油大学 | Reservoir compressibility evaluation method based on clustering analysis logging rock physical facies division |
| CN111271055B (en) * | 2020-02-26 | 2021-10-08 | 中国石油大学(北京) | Method, device and equipment for determining brittleness index of shale |
| CN111577232B (en) * | 2020-05-21 | 2022-03-01 | 重庆市能源投资集团科技有限责任公司 | Coal mine underground fracturing control safety guarantee method |
| CN111812714B (en) * | 2020-06-08 | 2022-11-15 | 中煤科工集团西安研究院有限公司 | Coal seam longitudinal and transverse wave velocity obtaining method based on refracted longitudinal waves and high-frequency trough waves |
| CN114856532A (en) * | 2021-02-03 | 2022-08-05 | 中国石油天然气股份有限公司 | Oil and gas reservoir transformation method, device and equipment |
| CN113283108B (en) * | 2021-06-10 | 2023-09-22 | 西安石油大学 | Method and system for quantitatively evaluating fracturing property of shale oil reservoir |
| CN115795773B (en) * | 2022-01-20 | 2023-06-23 | 山东科技大学 | Analysis method for influence factors of roof elastic energy contribution rate in coal disaster |
| CN115324549A (en) * | 2022-06-27 | 2022-11-11 | 中石化石油工程技术服务有限公司 | Comprehensive evaluation method of marlite fractured dessert area based on logging information |
| CN115584963B (en) * | 2022-09-20 | 2024-05-31 | 西南石油大学 | Unconventional reservoir fracturing comprehensive evaluation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314563A (en) * | 2014-10-21 | 2015-01-28 | 西安科技大学 | Logging quantitative evaluation method of coal bed methane reservoir fracturing capability |
| CN105822292A (en) * | 2016-03-17 | 2016-08-03 | 成都创源油气技术开发有限公司 | Evaluation method for computing compressibility of shale gas reservoir by using well-logging data |
| CN106097133A (en) * | 2016-07-11 | 2016-11-09 | 中国石油天然气集团公司 | A kind of coal seam water content and aquifer yield Forecasting Methodology |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382838A (en) * | 2013-07-25 | 2013-11-06 | 中国石油大学(北京) | Reservoir stratum analysis method and device based on pressing-ability of fracturing geological body |
| CN104268377B (en) * | 2014-09-11 | 2015-11-04 | 西安石油大学 | A kind of friability index defining method based on coal petrography industry component |
| CN108593436B (en) * | 2018-05-11 | 2020-08-11 | 北京石油化工学院 | Method for evaluating compressibility of tight reservoir based on stress-strain curve |
| CN109558663B (en) * | 2018-11-22 | 2020-04-03 | 中国矿业大学 | Coal reservoir fracturing property evaluation method |
-
2018
- 2018-11-22 CN CN201811398934.XA patent/CN109558663B/en active Active
-
2019
- 2019-05-22 LU LU101489A patent/LU101489B1/en active IP Right Grant
- 2019-05-22 WO PCT/CN2019/087895 patent/WO2020103414A1/en active Application Filing
- 2019-11-19 NL NL1043472A patent/NL1043472B1/en not_active IP Right Cessation
- 2019-11-20 BE BE20195809A patent/BE1026492B1/en not_active IP Right Cessation
-
2020
- 2020-01-07 ZA ZA2020/00093A patent/ZA202000093B/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314563A (en) * | 2014-10-21 | 2015-01-28 | 西安科技大学 | Logging quantitative evaluation method of coal bed methane reservoir fracturing capability |
| CN105822292A (en) * | 2016-03-17 | 2016-08-03 | 成都创源油气技术开发有限公司 | Evaluation method for computing compressibility of shale gas reservoir by using well-logging data |
| CN106097133A (en) * | 2016-07-11 | 2016-11-09 | 中国石油天然气集团公司 | A kind of coal seam water content and aquifer yield Forecasting Methodology |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020103414A1 (en) | 2020-05-28 |
| NL1043472B1 (en) | 2020-09-04 |
| BE1026492B1 (en) | 2020-12-08 |
| CN109558663B (en) | 2020-04-03 |
| ZA202000093B (en) | 2021-08-25 |
| LU101489B1 (en) | 2020-05-22 |
| BE1026492A1 (en) | 2020-02-18 |
| CN109558663A (en) | 2019-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Lapsed because of non-payment of the annual fee |
Effective date: 20221201 |