SU802895A1 - Method of determining filtration capacity in fluid-saturated section - Google Patents
Method of determining filtration capacity in fluid-saturated section Download PDFInfo
- Publication number
- SU802895A1 SU802895A1 SU772551139A SU2551139A SU802895A1 SU 802895 A1 SU802895 A1 SU 802895A1 SU 772551139 A SU772551139 A SU 772551139A SU 2551139 A SU2551139 A SU 2551139A SU 802895 A1 SU802895 A1 SU 802895A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- fluid
- filtration capacity
- saturated section
- logging
- wellbore
- Prior art date
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- Geophysics And Detection Of Objects (AREA)
Description
Изобретение относитс к изучению разрезов нефтегазовых месторо щений подземных хранилищ газа и водоносных объектов по данньм каротажа сква жин при нгшравленном воздействии на физические параметры прискважинной зоны пластов и может быть использовано дл вьшелени фильтрационных мощностей и дл разделени пластов на группы с различными фильтрационно-емкостными свойствеи и (ФЕС). Известен способ, предусматривающий оценку эффективных (рабочих)мощностей по результатам дерно-геофиэ ческих наблюдений за закачкой газа IB водоносные (обводненные) пласты ij . Наиболее эффективенуказанный способ при опытной закачке газа иа площгш х, предназначенных дл подэемного газохранени . Известен также способ разделени пластов по ФЕС, основанный на определении характера изменени во времени коэффициента вытеснени пластового флюида меченой жидкостью в присквс1жинной зоне под действием ка пилл рных сил Однако эти спсЗсобы эффективны только при отсутствии в исследуемых пластах зоны кольматацни (скин-эффекта ) и осуществл ютс путем проведени спектральных сложных технологи ческих операций одновременно с основньми технологическими работами в законченных бурением сквгикинах. Это ограничивает их использование при промьшшенной разведке месторождений и при опытно-промышленной эксплуатации . Известен также способ, примен емый при бурении скважин, который основан на выделении эффективных мощностей по данньш электрического каротажа, выполн емого при смене одного бурового раствора другим, отличающимс по электропроводноети 3. Недостаток способа заключаетс в том, что физические параметры прискважинной ёоны, определенные по данньм повторного каротажа, существенно измен ютс лишь в пластах с незначительным скин-эффектом. Увеличение респрессии на пласты приводит к избирательному поступлению фильтрата бурового раствора в те пласты, в которых удаетс преодолеть вли ние зоны кольматации. В этих пластах происходит заведомо прорывное вытеснение пластовых флюидов фильтратом бу-The invention relates to the study of cuts in oil and gas fields of underground gas storage facilities and aquifers using data from well logging with an increased impact on the physical parameters of the near-wellbore zone of the strata and can be used to spread the filtration capacity and divide the strata into groups with different reservoir properties and () FES). The known method provides for the assessment of the effective (working) capacities from the results of sodo-geophysical observations for the injection of gas IB to aquifers (flooded) layers ij. The most effective is the indicated method with test gas injection and floor space intended for subsurface gas storage. There is also a known method of segregation according to FES, based on determining the nature of the change in the coefficient of displacement of reservoir fluid with a labeled fluid in the near-brittle zone under the action of capillary forces. by performing spectral complex technological operations at the same time as the main technological works in the squiggins completed with drilling. This limits their use in industrial exploration of deposits and in pilot production. There is also known a method used in drilling wells, which is based on the allocation of effective powers for this electric logging, performed when changing one drilling mud with another, differing in electrical conductive network 3. The disadvantage of this method is that the physical parameters of near-well wells determined by this re-logging, vary significantly only in formations with a slight skin effect. An increase in the pressure on the formations leads to a selective influx of drilling mud filtrate into those formations in which it is possible to overcome the influence of the clogging zone. In these strata, a deliberate breakthrough displacement of reservoir fluids by the filtrate is occurring.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772551139A SU802895A1 (en) | 1977-12-06 | 1977-12-06 | Method of determining filtration capacity in fluid-saturated section |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772551139A SU802895A1 (en) | 1977-12-06 | 1977-12-06 | Method of determining filtration capacity in fluid-saturated section |
Publications (1)
Publication Number | Publication Date |
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SU802895A1 true SU802895A1 (en) | 1981-02-07 |
Family
ID=20736352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772551139A SU802895A1 (en) | 1977-12-06 | 1977-12-06 | Method of determining filtration capacity in fluid-saturated section |
Country Status (1)
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SU (1) | SU802895A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4397181A (en) * | 1981-08-21 | 1983-08-09 | Mobil Oil Corporation | Method for determining fluid saturation in a subsurface formation |
-
1977
- 1977-12-06 SU SU772551139A patent/SU802895A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4397181A (en) * | 1981-08-21 | 1983-08-09 | Mobil Oil Corporation | Method for determining fluid saturation in a subsurface formation |
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