SU397636A1 - METHOD FOR DETERMINING THE PRESSURE OF SATURATION OF PLASTIC LIQUIDS IN A POROUS MEDIUM - Google Patents
METHOD FOR DETERMINING THE PRESSURE OF SATURATION OF PLASTIC LIQUIDS IN A POROUS MEDIUMInfo
- Publication number
- SU397636A1 SU397636A1 SU1689363A SU1689363A SU397636A1 SU 397636 A1 SU397636 A1 SU 397636A1 SU 1689363 A SU1689363 A SU 1689363A SU 1689363 A SU1689363 A SU 1689363A SU 397636 A1 SU397636 A1 SU 397636A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pressure
- porous medium
- saturation
- determining
- plastic liquids
- Prior art date
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Description
II
Изобретение относитс к разработке газонефт иых месторождений, в частности к способу о-Пределенн давлени насыщени пластовых «ефтей в пористой среде.The invention relates to the development of gas and oil fields, in particular, to the method of o-limiting saturation pressure of reservoir oil in a porous medium.
Давление насыщени пластовых нефтей вл етс одним з основных параметрос, характеризующлх термодинадмическое состо ние пластового флюида. Точное определение его величины необходимо дл выбора способа и режима разработки нефт ного месторождени .The saturation pressure of reservoir oils is one of the main parameters characterizing the thermodynamic state of the formation fluid. Accurate determination of its value is necessary to select the method and mode of oil field development.
Известен способ определени давлени насыщени пластовых жидкостей в пористой среде. При олределепии давлени насыпдени этим способом снимаетс изотермическа зависимость: давление - объем пробы нластовой нефти, заполн ющей пористую среду. Снижение давлени в пористой среде осуществл етс отбором части пластовой жидкости из сосуда с пористой средой. Давление насыщени отвечает точке перелома изотермы: давление - объем.A known method for determining the saturation pressure of formation fluids in a porous medium. When the pressure of the bulk is filled in this way, an isothermal relationship is removed: pressure is the volume of the sample of nlast oil filling the porous medium. The reduction of pressure in the porous medium is carried out by withdrawing a portion of the formation fluid from the vessel with the porous medium. The saturation pressure corresponds to the isotherm fracture point: pressure - volume.
Недостатком этого способа вл етс нечеткий перелом на изотерме: давление - сбъем в области перехода смесей из однофазного в двухфазное состо ние, что приводит к большой погрешности в определении давлени насыпепи , относительно большой поровый об::,е .м не менее 100 с.м и необходимость затрат The disadvantage of this method is an indistinct fracture on the isotherm: pressure is in the area of transition from single-phase to two-phase mixtures, which leads to a large error in determining the pressure of the pool, a relatively large pore volume of:. and the need for cost
времени на сн тие пзотер.мы в дв)хфаз ой области.time for the removal of a pzoter.we in the two-phase area.
.Предлагаемый способ отличаетс от известного тем, что в процессе сниженн давлени измер ют разность потенциалов на концах образца норпстой среды, заполненного пластовой жидкостью, л но ::i3MC ieHino BTOII разности ф 1кс 1руют величину давлени насыщени . Это обеспе-шзает точное }становлена1е давлени в мо.менг но вле П первых пузырей газа в иластовоГ жидкости, заполн ющей среду.The proposed method differs from the well-known fact that in the process of reduced pressure, the potential difference at the ends of a sample of a normal flow medium filled with a formation fluid is measured, but the difference of the pressure is 1 sec: i3MC iHino BTOII. This ensures that the exact pressure is set in less than a second of the first gas bubbles in the silt fluid filling the medium.
Разность пстенаиалоБ возкикает движении ;;идкости и nopiiCTofi среде под воздействием электрок1 нет:1ческих эффектов..The difference in fluid pressure arises from motion ;; fluid and nopiiCTofi environment under the influence of electrocircumstors no: 1 effects ..
Предлагаемый способ дает возможность точно установить давление в момент образовани первых пузырей газа в пласголо л идкости , значительно уменьилить, по с объемиыл crKiC(;6()M, объе.м сосуда с пористой средой, а также снизить затраты рабочего времеин па проведение исследовани , поскольку отпадает нео.бходимость сн ти изотер .мы в двухфазио ; области.The proposed method makes it possible to accurately set the pressure at the time of the formation of the first gas bubbles in the liquid, to significantly reduce, by volume, crKiC (; 6 () M), the volume of the vessel with the porous medium, and also reduce the cost of working time, since there is no neo-necessity to remove isothers. we are in a biphase;
На чертеже изображена схема, по сн юща пpeдлaгae iый способ.The drawing shows a diagram explaining the following method I.
Проба иасыпют-гюй газом пластовой жидкости по.л1ещаетс з тepмocтaтlиpye.roм однопоршнеВом сосуде 1. Равновесие в сосуде достигаетс нри иомоии раскачивани илн меThe sample of the asypus-guy gas of the reservoir fluid is located on the one piston vessel 1. The balance in the vessel is achieved by swaying the vessel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1689363A SU397636A1 (en) | 1971-08-18 | 1971-08-18 | METHOD FOR DETERMINING THE PRESSURE OF SATURATION OF PLASTIC LIQUIDS IN A POROUS MEDIUM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1689363A SU397636A1 (en) | 1971-08-18 | 1971-08-18 | METHOD FOR DETERMINING THE PRESSURE OF SATURATION OF PLASTIC LIQUIDS IN A POROUS MEDIUM |
Publications (1)
Publication Number | Publication Date |
---|---|
SU397636A1 true SU397636A1 (en) | 1973-09-17 |
Family
ID=20485453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1689363A SU397636A1 (en) | 1971-08-18 | 1971-08-18 | METHOD FOR DETERMINING THE PRESSURE OF SATURATION OF PLASTIC LIQUIDS IN A POROUS MEDIUM |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU397636A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010148628A1 (en) * | 2009-06-22 | 2010-12-29 | 中国石油天然气股份有限公司 | Quantitative calculation method for hydrocarbon saturation of fractured reservoir |
-
1971
- 1971-08-18 SU SU1689363A patent/SU397636A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010148628A1 (en) * | 2009-06-22 | 2010-12-29 | 中国石油天然气股份有限公司 | Quantitative calculation method for hydrocarbon saturation of fractured reservoir |
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