RU2001103264A - METHOD FOR DETERMINING LOCAL STRESSES IN ROCK - Google Patents

METHOD FOR DETERMINING LOCAL STRESSES IN ROCK

Info

Publication number
RU2001103264A
RU2001103264A RU2001103264/03A RU2001103264A RU2001103264A RU 2001103264 A RU2001103264 A RU 2001103264A RU 2001103264/03 A RU2001103264/03 A RU 2001103264/03A RU 2001103264 A RU2001103264 A RU 2001103264A RU 2001103264 A RU2001103264 A RU 2001103264A
Authority
RU
Russia
Prior art keywords
sample
rock
well
local
stresses
Prior art date
Application number
RU2001103264/03A
Other languages
Russian (ru)
Other versions
RU2215149C2 (en
Inventor
Корнелис Ян Кентер
МУНСТЕР Йоханнес Герардюс ВАН
Баренд Ян Пестман
Original Assignee
Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Шелл Интернэшнл Рисерч Маатсхаппий Б.В. filed Critical Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
Publication of RU2001103264A publication Critical patent/RU2001103264A/en
Application granted granted Critical
Publication of RU2215149C2 publication Critical patent/RU2215149C2/en

Links

Claims (6)

1. Способ определения локальных напряжений в горной породе, подверженной первому, второму и третьему локальным напряжениям, для осуществления которого в горной породе бурят скважину, скважину заполняют промывочной жидкостью, оказывающей регулируемое давление на стенки скважины, благодаря чему в определенной области горной породы первое локальное напряжение замещается на другое напряжение, зависящее от названного регулируемого давления, действующего на стенки скважины, причем способ состоит из следующих операций: осуществляют отбор образца, извлеченного из названной области и имеющего первое, второе и третье базовые направления, которые совпадают с первым, вторых и третьим локальными напряжениями, действующими на образец до его извлечения из горной породы; выполняют некоторое множество испытаний на образце, при проведении каждого из которых образец подвергается регулируемым напряжениям вдоль базовых направлений с целью определения поверхности разрушения образца и определения по поверхности разрушения по меньшей мере одного - второго или третьего - локального напряжения, отличающийся тем, что значение регулируемого напряжения вдоль первого базового направления по существу равно значению названного другого напряжения.1. A method for determining local stresses in a rock subjected to first, second and third local stresses, for which a well is drilled in a rock, the well is filled with flushing fluid that exerts controlled pressure on the walls of the well, so that the first local stress in a certain rock region is replaced by another voltage, depending on the specified controlled pressure acting on the walls of the well, and the method consists of the following operations: a sample extracted from the named area and having first, second and third basic directions that coincide with the first, second and third local stresses acting on the sample before it is removed from the rock; perform a number of tests on the sample, during each of which the sample is subjected to adjustable stresses along the basic directions in order to determine the fracture surface of the sample and determine at least one second or third local stress on the fracture surface, characterized in that the value of the adjustable stress along the first basic direction is essentially equal to the value of the named other voltage. 2. Способ по п. 1, отличающийся тем, что направление первого локального напряжения по существу вертикально и направления второго и третьего локальных напряжений по существу горизонтальны. 2. The method according to p. 1, characterized in that the direction of the first local voltage is essentially vertical and the directions of the second and third local stresses are essentially horizontal. 3. Способ по п. 2, отличающийся тем, что названная область расположена ниже забоя буровой скважины и первичное напряжение определяется давлением столба жидкости в скважине и весом объема породы, расположенного между забоем буровой скважины и тем местом, из которого извлечен образец породы. 3. The method according to p. 2, characterized in that the named area is located below the bottom of the borehole and the primary stress is determined by the pressure of the liquid column in the well and the weight of the rock volume located between the bottom of the borehole and the place from which the rock sample was extracted. 4. Способ по любому одному из пп. 1- 3, отличающийся тем, что образец извлекают из забойной области буровой скважины. 4. The method according to any one of paragraphs. 1-3, characterized in that the sample is removed from the bottomhole region of the borehole. 5. Способ по любому одному из пп. 1 - 4, отличающийся тем, что при выполнении каждого испытания точку поверхности разрушения определяют по акустической эмиссии, исходящей от образца. 5. The method according to any one of paragraphs. 1 to 4, characterized in that during each test, the point of the fracture surface is determined by the acoustic emission emanating from the sample. 6. Способ существенно такой, как он описан выше со ссылками на фигуры. 6. The method is substantially the same as described above with reference to the figures.
RU2001103264/03A 1998-07-07 1999-07-01 Method of determination of rock local stresses RU2215149C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98202284 1998-07-07
EP98202284.0 1998-07-07

Publications (2)

Publication Number Publication Date
RU2001103264A true RU2001103264A (en) 2003-01-27
RU2215149C2 RU2215149C2 (en) 2003-10-27

Family

ID=8233903

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001103264/03A RU2215149C2 (en) 1998-07-07 1999-07-01 Method of determination of rock local stresses

Country Status (10)

Country Link
EP (1) EP1095205B1 (en)
AT (1) ATE341699T1 (en)
AU (1) AU747421B2 (en)
CA (1) CA2337803C (en)
DE (1) DE69933449T2 (en)
DK (1) DK1095205T3 (en)
MY (1) MY123277A (en)
NO (1) NO321318B1 (en)
RU (1) RU2215149C2 (en)
WO (1) WO2000001927A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8365599B2 (en) * 2010-04-06 2013-02-05 Varel Europe S.A.S. Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials
RU2538563C1 (en) * 2013-11-05 2015-01-10 Анатолий Фёдорович Косолапов Optimal pressure drawdown determination method
AU2017303863B2 (en) 2016-07-29 2022-12-15 Isomerase Therapeutics Limited Novel methods
CN108918012B (en) * 2018-07-16 2020-07-28 中铁十四局集团有限公司 Method for monitoring disturbance stress of surrounding rock of subway shield tunnel
CN112484895B (en) * 2020-12-21 2023-03-07 天津城建大学 Three-dimensional stress testing device and method with hexahedral base as outline
CN112816336B (en) * 2021-01-04 2022-03-29 中国科学院武汉岩土力学研究所 In-situ ground stress testing device and method based on pressurization stress relief
CN114442191B (en) * 2022-01-04 2022-11-22 成都理工大学 Method for determining underground modern ground stress direction based on core and borehole structure recovery
CN116752968B (en) * 2023-06-07 2024-05-17 陕煤集团神木红柳林矿业有限公司 While-drilling device for measuring basic elastic mechanical parameters of coal rock and use method thereof
CN117647342B (en) * 2024-01-30 2024-04-19 中国地质大学(北京) Coal reservoir ground stress determination method based on acoustic emission wavelet analysis

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
JPS5339182A (en) * 1976-09-22 1978-04-10 Denriyoku Chuo Kenkyusho Method of assuming earth pressure by discharging sound
DE2927529C2 (en) * 1979-07-07 1982-06-16 Ruhrkohle Ag, 4300 Essen Wet test drilling method in the coal
US4981037A (en) * 1986-05-28 1991-01-01 Baroid Technology, Inc. Method for determining pore pressure and horizontal effective stress from overburden and effective vertical stresses
GB2243173B (en) * 1990-03-27 1994-06-29 Seafloors Eng Inc Self-contained apparatus and method for determining the static and dynamic loading characteristics of a soil bed
FR2663121B1 (en) * 1990-06-12 1992-09-11 Univ Lille Flandres Artois MULTIPURPOSE TRIAXIAL TEST CELL FOR GEO-MATERIALS.
US5243855A (en) * 1990-08-31 1993-09-14 Exxon Production Research Company Apparatuses and methods for measuring ultrasonic velocities in materials
US5253518A (en) * 1990-08-31 1993-10-19 Exxon Production Research Company Apparatuses and methods for adjusting a material's fluid content and effective stresses
US5767399A (en) * 1996-03-25 1998-06-16 Dresser Industries, Inc. Method of assaying compressive strength of rock

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