RU2001117584A - Method and device for assessing the physical parameters of underground occurrence based on the sampling of drilling fines - Google Patents

Method and device for assessing the physical parameters of underground occurrence based on the sampling of drilling fines

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Publication number
RU2001117584A
RU2001117584A RU2001117584/03A RU2001117584A RU2001117584A RU 2001117584 A RU2001117584 A RU 2001117584A RU 2001117584/03 A RU2001117584/03 A RU 2001117584/03A RU 2001117584 A RU2001117584 A RU 2001117584A RU 2001117584 A RU2001117584 A RU 2001117584A
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RU
Russia
Prior art keywords
chamber
rock
injection
fragments
physical parameters
Prior art date
Application number
RU2001117584/03A
Other languages
Russian (ru)
Other versions
RU2268364C2 (en
Inventor
Ролан ЛЕНОРМАН
Патрик ЭЖЕРМАНН
Original Assignee
Энститю Франсэ Дю Петроль
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Priority claimed from FR0008059A external-priority patent/FR2810736B1/en
Application filed by Энститю Франсэ Дю Петроль filed Critical Энститю Франсэ Дю Петроль
Publication of RU2001117584A publication Critical patent/RU2001117584A/en
Application granted granted Critical
Publication of RU2268364C2 publication Critical patent/RU2268364C2/en

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Claims (5)

1. Способ оценки физических параметров, таких как абсолютная проницаемость пористой горной породы, в зоне подземного залегания, на основе фрагментов, взятых в этой зоне, отличающийся тем, что содержит следующие операции погружение фрагментов в вязкую жидкость, находящуюся в закрытой камере; фаза нагнетания в камеру указанной жидкости под давлением, возрастающим в зависимости от времени до определенного порога с возможностью сжатия газа, находящегося в порах образца горной породы; фаза релаксации с остановкой нагнетания; измерение изменения давления в камере во время обеих фаз нагнетания и релаксации; моделирование изменения давления во время процесса нагнетания и релаксации на основе первоначальных значений, принятых за физические параметры фрагментов; этап итеративного приведения значений физических параметров фрагментов горной породы для максимального приведения смоделированного изменения давления к изменению давления, измеренному в камере.1. A method for evaluating physical parameters, such as the absolute permeability of a porous rock, in an underground zone, based on fragments taken in this zone, characterized in that it comprises the following operations: immersing the fragments in a viscous liquid in a closed chamber; the phase of injection into the chamber of the specified liquid under pressure, increasing depending on time to a certain threshold with the possibility of compression of the gas located in the pores of the rock sample; relaxation phase with discharge stop; measurement of pressure changes in the chamber during both phases of pumping and relaxation; modeling pressure changes during the injection and relaxation process based on the initial values taken as the physical parameters of the fragments; a step of iteratively converting the values of the physical parameters of the rock fragments to maximize the reduction of the simulated pressure change to the pressure change measured in the chamber. 2. Способ по п.1, отличающийся тем, что в закрытую камеру загружают буровую мелочь вместе с буровым раствором.2. The method according to claim 1, characterized in that the drilling fines are loaded into the closed chamber together with the drilling fluid. 3. Способ по п.1, отличающийся тем, что в закрытую камеру загружают буровую мелочь после ее предварительной промывки.3. The method according to claim 1, characterized in that the drill trifle is loaded into the closed chamber after its preliminary washing. 4. Устройство для оценки физических параметров, таких как абсолютная проницаемость горной породы, в зоне подземного залегания, на основе фрагментов горной породы, взятых в этой зоне, отличающееся тем, что оно содержит закрытую камеру для загрузки фрагментов пористой горной породы, средство нагнетания в камеру вязкой жидкости для заполнения камеры с находящимися в ней фрагментами горной породы на первом этапе и для выполнения цикла, состоящего из фазы нагнетания в камеру жидкости под давлением, возрастающим в зависимости от времени до определенного порога, на втором этапе с возможностью сжатия газа, находящегося в порах горной породы, и из фазы релаксации с остановкой нагнетания, средства измерения изменения давления в камере во время обеих фаз нагнетания и релаксации и систему обработки для моделирования изменения давления во время процесса нагнетания и релаксации на основе первоначальных значений, принятых за физические параметры фрагментов горной породы, и для итеративного приведения значений, придаваемых этим физическим параметрам для максимального приведения смоделированного изменения давления к изменению давления, измеренному в камере.4. Device for assessing physical parameters, such as absolute rock permeability, in the underground zone, based on rock fragments taken in this zone, characterized in that it contains a closed chamber for loading fragments of porous rock, a means of injection into the chamber viscous fluid to fill the chamber with fragments of rock in it at the first stage and to perform a cycle consisting of a phase of injection into the chamber of liquid under pressure, increasing depending on the time before divided threshold, at the second stage with the possibility of compressing the gas located in the pores of the rock, and from the relaxation phase with the injection stopped, means for measuring pressure changes in the chamber during both phases of injection and relaxation, and a processing system for modeling pressure changes during the injection process and relaxation based on the initial values taken as the physical parameters of the rock fragments, and for iteratively converting the values assigned to these physical parameters to maximize the smo delta pressure change to pressure change measured in the chamber. 5. Устройство по п.4, отличающееся тем, что средство нагнетания содержит насос, нагнетающий воду при постоянном расходе в буферную емкость, заполненную высоковязким маслом.5. The device according to claim 4, characterized in that the injection means comprises a pump forcing water at a constant flow rate into a buffer tank filled with highly viscous oil.
RU2001117584/03A 2000-06-23 2001-06-22 Method and device to estimate physical underground bedding parameters by taking drill fines sample RU2268364C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0008059A FR2810736B1 (en) 2000-06-23 2000-06-23 METHOD FOR EVALUATING PHYSICAL PARAMETERS OF A SUBTERRANEAN DEPOSIT FROM ROCK DEBRIS COLLECTED THEREIN
FR0008059 2000-06-23

Publications (2)

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RU2001117584A true RU2001117584A (en) 2003-05-27
RU2268364C2 RU2268364C2 (en) 2006-01-20

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US (1) US6453727B1 (en)
EP (1) EP1167948B1 (en)
BR (1) BR0102532A (en)
CA (1) CA2351109C (en)
FR (1) FR2810736B1 (en)
NO (1) NO318632B1 (en)
RU (1) RU2268364C2 (en)

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