Geology, geography and global energy

Scientific and Technical Journal

Geological and geophysical parameters calculate dynamic reservoir pressures on the North Caspian shelf

2015. №3, pp. 64-69

Semisotova Olga S. - Chief Engineer, "VolgogradNIPImorneft", 12 Gubernator Anatoliy Guzhvin ave., Astrakhan, 414014, Russian Federation, Semisotova@lukoilvmn.ru

Serebryakova Oksana A. - Senior Lecturer, Astrakhan State University, 1 Shaumyan sq., Astrakhan, 414000, Russian Federation, geologi2007@yandex.ru

This work is devoted to analysis of some geological and geophysical parameters used for calculation of the dynamic reservoir pressure of the North Caspian shelf fields. The production drilling of the North Caspian shelf fields use the brand new technological level with cluster directional wells with horizontal completion. To monitor the development of the North Caspian fields are held monthly calculation of dynamic reservoir pressure according to the formula S. Joshi, based on the characteristics of the reservoir and fluid, and variable field parameters measured in the well: the well production rate and bottomhole pressure. For analysis of the physical processes occurring in the deposits required detailed information about influencing on these processes. At first it is necessary to consider the long stop of the wells. Then in the process of operation of each well should organize the information for later correlation of all available data that will allow with sufficient accuracy to perform the extrapolation of the basic parameters of development of the field. The importance in the choice of field parameters used for calculation of the dynamic reservoir pressure, has a mode of operation of production wells. The problem of the reliability mathematical model of the performance of production wells of the North Caspian fields is reduced to predicting with sufficient accuracy the values of the parameters which are not measured directly, but also the optimal time to measure field parameters - flow rate and bottomhole pressure - depending on the mode of operation of the well.

Key words: Северный Каспий, разработка месторождения, эксплуатационная скважина, горизонтальный ствол, дебит скважины, мультифазный расходомер, датчик давления, динамическое пластовое давление, забойное давление, математическая модель, формула Джоши, North Caspian,

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