A WELL COMPLETION METHOD

专利名称：A WELL COMPLETION METHOD发明人：Dmitriy Ivanovich Aleksandrov申请号：US13382993申请日：20100607

公开号：US20120103626A1公开日：20120503

专利附图：

摘要：The method pertains to the oil and gas industry and can be used in thedevelopment of producing formations. A producing string () together with a sealingdevice () are lowered into a well () and the well () is divided into an upper cavity () and alower cavity () with the aid of said sealing device () to establish a hydraulic connection

between the well opening and the upper cavity and between the lower cavity and theproducing formation, respectively. The installation of equipment () and a check valve iscarried out stepwise. A washer fluid () is replaced by a washer fluid (). The equipment () ispassed through the sealing device () and the hydraulic connection between the wellopening, the lower cavity and the producing formation is re-established along theannular channel. The well () is deepened using the equipment () until an inflow of

formation fluids occurs, the differential pressure in the hydraulic system “well opening—producing formation” being adjusted using the check valve and a blowout preventer ().The equipment () is withdrawn from the lower cavity () upon completion of deepening,the device () is closed during separation of the cavity () from the cavity () and cutting-offthe hydraulic connection between the producing formation and the upper cavity. Thetechnical solution increases the efficiency and quality of technical operations andprevents the undesired inflow of formation fluids.

申请人：Dmitriy Ivanovich Aleksandrov

地址：St. Petersburg RU

国籍：RU

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