SU672593A1 - Method of determining diffusivity and adsorptivity of rock samples - Google Patents
Method of determining diffusivity and adsorptivity of rock samplesInfo
- Publication number
- SU672593A1 SU672593A1 SU772561934A SU2561934A SU672593A1 SU 672593 A1 SU672593 A1 SU 672593A1 SU 772561934 A SU772561934 A SU 772561934A SU 2561934 A SU2561934 A SU 2561934A SU 672593 A1 SU672593 A1 SU 672593A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- adsorptivity
- rock samples
- diffusion
- solutions
- determining
- Prior art date
Links
Description
Изобретение относитс к способам исследовани физических свойств горных пород и может быть использовано дл получени зависимостей диффузионно-адсорбционной ак тивности пород от их глинистости, пористости и водонасыщенности, необходимых дл оценки коллекторов нефти и газа по данным геофизических исследований скважин методом потенциала скважин. Известен способ определени диффузионно-адсорбционной активности образцов пород , вынесенных из скважин при разведке нефт ных и газовых месторождений, по измеренной зависимости диффузионно-адсорбционного потенциала от логарифма отношени активностей двух электролитов различной концентрации и зависимости диффузионного потенциала от логарифма того же отношени активностей двух электролитов 1 Недостатком способа вл етс низка производительность, св занна с большим числом измерений диффузионно-адсорбционных и диффузионных потенциалов при различных отношени х активностей электролитов дл получени указанных зависимостей. Наиболее близким техническим решением к предложенному вл етс способ определени диффузионно-адсорбционной активности образца горной породы 2 путем приготовлени водных растворов хлористого натри , одного - большей концентрации, соответствующей концентрации этой соли в пластовой воде, и другого - меньшей концентрации, насыщени образца раствором большей концентрации, помешени насыщенного образца между растворами, создани контакта образца с этими растворами , приготовлени двух произвольных объемов однонормального раствора хлористого кали , соединени одного из них с раствором большей концентрации, другого - с меньшей, измерени разности потенциалов растворов, извлечени образца, создани непосредственного контакта между растворами хлористого натри большей и меньшей концентрации, измерени разности потенциалов растворов, причем измерени выполн ют несколько оаз и каждый раз контактирующие растворы готов т заново до получени стабильных значений разности но тенциалов . По алгебраической разности измеренных потенциалов с образцом и без неThe invention relates to methods for studying the physical properties of rocks and can be used to derive the dependencies of the diffusion-adsorption activity of rocks on their clay content, porosity and water saturation, which are necessary for estimating oil and gas reservoirs according to geophysical well survey data. The known method for determining the diffusion-adsorption activity of rock samples taken out of wells during exploration of oil and gas fields is based on the measured dependence of the diffusion-adsorption potential on the logarithm of the ratio of the activities of two electrolytes of different concentrations and the dependence of the diffusion potential on the logarithm of the same ratio of the activities of two electrolytes 1 Disadvantage The method is low productivity due to a large number of measurements of diffusion-adsorption and diffusion parameters. potentials at various ratios of activities for the preparation of said electrolytes dependencies. The closest technical solution to the proposed method is to determine the diffusion-adsorption activity of a rock sample 2 by preparing aqueous solutions of sodium chloride, one — a higher concentration, a corresponding concentration of this salt in the formation water, and the other — a lower concentration; place a saturated sample between solutions, create a sample contact with these solutions, prepare two arbitrary volumes of a single-normal solution of chlorine chloride potassium hydroxide, the compound of one of them with a solution of greater concentration, the other with a smaller one, measuring the potential difference of solutions, removing the sample, making direct contact between sodium chloride solutions of a higher and lower concentration, measuring the potential difference of solutions, and measuring several oases and each once the contacting solutions are prepared anew to obtain stable values of the difference in the potentials. According to the algebraic difference of the measured potentials with a sample and without
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772561934A SU672593A1 (en) | 1977-12-26 | 1977-12-26 | Method of determining diffusivity and adsorptivity of rock samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772561934A SU672593A1 (en) | 1977-12-26 | 1977-12-26 | Method of determining diffusivity and adsorptivity of rock samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU672593A1 true SU672593A1 (en) | 1979-07-05 |
Family
ID=20741086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772561934A SU672593A1 (en) | 1977-12-26 | 1977-12-26 | Method of determining diffusivity and adsorptivity of rock samples |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU672593A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980002038A1 (en) * | 1979-03-27 | 1980-10-02 | Sredneaziat Nii Prirod Gaza | Method of maintaining preset parameters of drilling mud |
| RU173937U1 (en) * | 2017-01-09 | 2017-09-20 | Александр Валентинович Морев | DEVICE FOR FIXING CORE SAMPLES IN DETERMINING DIFFUSION-ADSORPTION PARAMETERS |
| RU2681973C1 (en) * | 2018-04-18 | 2019-03-14 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | Diffusion-adsorption activity based rocks pore space surface wettability evaluation |
-
1977
- 1977-12-26 SU SU772561934A patent/SU672593A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980002038A1 (en) * | 1979-03-27 | 1980-10-02 | Sredneaziat Nii Prirod Gaza | Method of maintaining preset parameters of drilling mud |
| RU173937U1 (en) * | 2017-01-09 | 2017-09-20 | Александр Валентинович Морев | DEVICE FOR FIXING CORE SAMPLES IN DETERMINING DIFFUSION-ADSORPTION PARAMETERS |
| RU2681973C1 (en) * | 2018-04-18 | 2019-03-14 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | Diffusion-adsorption activity based rocks pore space surface wettability evaluation |
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