SU875006A1 - Method of measuring formation pressure when testing cased wells - Google Patents
Method of measuring formation pressure when testing cased wells Download PDFInfo
- Publication number
- SU875006A1 SU875006A1 SU792829276A SU2829276A SU875006A1 SU 875006 A1 SU875006 A1 SU 875006A1 SU 792829276 A SU792829276 A SU 792829276A SU 2829276 A SU2829276 A SU 2829276A SU 875006 A1 SU875006 A1 SU 875006A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- testing
- pressure
- formation pressure
- cased wells
- reservoir
- Prior art date
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- Measuring Fluid Pressure (AREA)
Description
(54) СПОСОБ ОПРЕДЕЛЕНИЯ ПЛАСТОВОГО ДАВЛЕНИЯ ПРИ ИССЛЕДОВАНИИ ОБСАЖЕННЫХ СКВАЙМН Изобретение относитс к исследова нию параметрических, поисковых и раз ведочных скважин, св зано с исследов нием слабопроницаемьгх пластов и может быть использовано в различных нефт ных районах при проведении поисково-разведочного бурени не нефть и газ при глубинах скважин более 2000 м. Известен способ определени пласт вого давлени при исследовании скважин , предполагающий об зательное освоение скважин и получение пластового флюида. Пластовое давление замер етс на завершающем этапе исследований путем закрыти скважины дл восстановлени статического пластового , давлени при наличии в стволе пластового флюида. При этом,врем на восстановление давлени в зависимости от интенсивности притока из плас затрачиваетс от нескольких часов до нескольких дес тков суток 1 3Однако даже при весьма длительных сроках ожидани восстановлени давлени не всегда удаетс замер ть ста- тическое пластовое давление. Наличие слабого притока допускает отсутствие замера пластового давлени , поэтому многие объекты в большом количестве поисково-разведочных скважин не получают гидродинамической оценки пласта, следовательно, по ним отсутствуют индикаторные диаграммы и основные параметры пласта (проницаемость , гидропроводность и др.7При этом иссл.едование пласта сводитс к определению дебитов при различных снижени х уровн , а при наличии слабого притока газа не удаетс получить и этих определений. Знание истинных величин пластового давлени важно не только дл определени параметров пласта, но и дл подбора оптимальных условий вскрыти и испытани самих разведочных скважин с целью сокращени цик(54) METHOD FOR DETERMINING PLASTIC PRESSURE IN RESEARCH OF EXPLORATED SQUARES at well depths greater than 2000 m. There is a known method for determining reservoir pressure in well testing, which implies the compulsory development of wells and the formation of formation fluid. The reservoir pressure is measured at the final stage of the study by closing the well to restore the static reservoir, if there is pressure in the reservoir fluid. At the same time, the time for pressure recovery depending on the intensity of inflow from the plate takes from several hours to several tens of days. However, even with very long waiting periods for the pressure to recover, it is not always possible to measure the static reservoir pressure. The presence of weak inflow allows no measurement of reservoir pressure, so many objects in a large number of exploration wells do not receive a hydrodynamic assessment of the reservoir, therefore, there are no indicator diagrams and the main parameters of the reservoir (permeability, hydroconductivity, etc.). to determine the flow rates at various reductions in the level, and in the presence of a weak gas flow it is not possible to obtain these definitions. Knowledge of the true values of the reservoir pressure is important not only to determine the parameters of the reservoir, but also to select the optimal conditions for opening and testing the exploration wells themselves in order to shorten the cycle
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792829276A SU875006A1 (en) | 1979-10-18 | 1979-10-18 | Method of measuring formation pressure when testing cased wells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792829276A SU875006A1 (en) | 1979-10-18 | 1979-10-18 | Method of measuring formation pressure when testing cased wells |
Publications (1)
Publication Number | Publication Date |
---|---|
SU875006A1 true SU875006A1 (en) | 1981-10-23 |
Family
ID=20854759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792829276A SU875006A1 (en) | 1979-10-18 | 1979-10-18 | Method of measuring formation pressure when testing cased wells |
Country Status (1)
Country | Link |
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SU (1) | SU875006A1 (en) |
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1979
- 1979-10-18 SU SU792829276A patent/SU875006A1/en active
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