EFFECT: oil and gas industry.
SUBSTANCE: invention relates to the oil and gas industry and can be used in the operation of wells in all modes of their operation in the development of oil and gas fields, including geophysical studies of wells with a horizontal extended end and wells with a complex profile. The method for conducting downhole surveys using an autonomous mobile complex includes delivery to the facility a set of equipment, apparatus and tools; carrying out installation operations at the well for installation at the wellhead and fastening with the help of a preventer’s own mast, a multi-chamber sealing device, an injector, a wellhead platform for assembly maintenance, a sectional lubricator unit with an anti-draught, a bleed valve and a metering device for monitoring pressure in the inter-chamber space; carrying out round-trip operations of a flexible steel-polymer pipe (GSPT), a rigid geophysical cable (LC) with fixed on a pipe tip with downhole tools, downhole geophysical equipment and equipment in accordance with the implemented technology; laying HSPT, LCD on the drum of the lifting unit (SPA); supply of process fluids and chemicals into the well through the injection line and GSPT from an external source at the wellhead. At the same time, the parameters of tripping operations (SPO) are controlled using a software package that allows you to keep a strict record of all manipulations at the wellhead, as well as the downhole space with the registration of parameters on the autonomous memory of the device of the operator console of the SPA with the possibility reading and processing the received data. In addition, they record the speed of movement of the HSPT, LC during their movement in the well, the axial loads created by the injector or the winch of the SPA, the depth of the tripping operations, wellhead temperature and pressure, the pressure of the process fluid injection into the well through the injection line and the HSPT, the flow rate of the liquid , gas through the injection line carried out using a ground device. Registration of the obtained geophysical material is carried out with the help of a recorder located in the laboratory compartment, by means of the conductive cores of the GSPT through a hydrocollector located on the winch drum of the SPA.
EFFECT: implementation of a set of measures to improve the efficiency of the work being carried out.
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