FIELD: oil producing industry. SUBSTANCE: invention can be used for instrumental monitoring of well downhole equipment. Proposed diagnosing is carried out at starting of electric centrifugal pump, bringing of pump o stationary mode of operation, operating at stationary mode and at shutting down by simultaneously recording instantaneous values of amplitudes of current consumed by submersible electric motor, supply voltage, instantaneous values of vibrations on flange of tube head by three components and instantaneous values of water-oil mixture pressure (wellhead pressure). Obtained parameters are compared with initial ones found when bringing equipment in operation or at primary investigations or with those tolerable for early investigated electric centrifugal pumps of definite type-sizes and, basing on combination of diagnostic parameters, technical condition of electric motor, centrifugal pump and tubing proper are determined. Invention is designed for getting instrumental data for qualification evaluation of changes of technical condition of submersible electric centrifugal pump and tubing in process of operation and reduction of down time of oil well when replacing downhole equipment. EFFECT: improved reliability of diagnosing. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD DETERMINING SLIP OF ROTOR OF ASYNCHRONOUS ELECTRIC MOTOR AND FACILITY FOR ITS IMPLEMENTATION | 2000 |
|
RU2209442C2 |
| PROCESS OF REDUCTION OF MEASUREMENT RECORDINGS TAKEN AT DIFFERENT TIMES TO COMMON TIME | 1998 |
|
RU2150684C1 |
| METHOD OF ACOUSTIC ACTION ON FLOW OF LIQUID IN TUBING STRING WITH FEEDBACK CONTROL | 2018 |
|
RU2721614C2 |
| METHOD FOR DETERMINING DYNAMIC CHARACTERISTICS OF BASE AND BODY OF DAM AT HYDROELECTRIC POWER STATION BY MEASURING PULSES BUILT UP WHEN STARTING HYDROPOWER UNITS | 1998 |
|
RU2151234C1 |
| Method for Monitoring Energy Consumption of Oil and Gas Production Equipment | 2023 |
|
RU2801699C1 |
| METHOD FOR SHORT-TERM OPERATION OF WELL USING IMMERSED PUMP DEVICE WITH ELECTRIC DRIVE | 2005 |
|
RU2293176C1 |
| METHOD FOR REGULATING THE ENERGY CONSUMPTION OF OIL-PRODUCING DOWNHOLE EQUIPMENT | 2022 |
|
RU2773403C1 |
| METHOD OF DISLODGEMENT OF ELECTRICAL CENTRIFUGAL PUMP UNITS | 2016 |
|
RU2620662C1 |
| METHOD DETERMINING PHYSICAL CONDITION OF BUILDINGS AND STRUCTURES | 1998 |
|
RU2140625C1 |
| METHOD OF OIL WITHDRAWAL FROM HIGH GAS CONTENT WELL AND ELECTROLOADING EQUIPMENT FOR IT | 2007 |
|
RU2380521C2 |
