RU94026114ARU94026114/03ARU94026114ARU94026114ARU 94026114 ARU94026114 ARU 94026114ARU 94026114/03 ARU94026114/03 ARU 94026114/03ARU 94026114 ARU94026114 ARU 94026114ARU 94026114 ARU94026114 ARU 94026114A
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FIELD: spatial position of axes of drill wells. SUBSTANCE: gyroinclinometer has surface instrumentation and in-well instrument. The latter has gyroscope of three degree of freedom, accelerometer units, and two-component angular speed gyroscope sensor. Analytical gyrocompassing is performed in the mode of setting up with immovable in-well instrument using accelerometer, two- component angular speed sensor, and computer being a part of surface instrumentation. In so doing azimuth of main axis of the gyroscope. Azimuth value is used by gyroinclinometer under motion. For the purpose of decreasing error in determining azimuth of sloping in the mode of setting up, data produced by accelerometer and two-component angular speed gyroscopic sensor is analyzed by analyzer unit. EFFECT: increased accuracy in determining azimuth.
Claims (1)
Использование: для определения пространственного положения оси буровых скважин. Цель: повышение точности инклинометрических замеров. Сущность: Гироинклинометр (ГИ) содержит наземную aппaрaтyрy (НА) и скважинный прибор (СП), в состав которого входят трехстепенный гироскоп (ТГ), блоки многокомпонентного акселерометра (БМА) и двухкомпонентного гироскопического датчика угловой скорости (БДУС). В режиме выставки производится аналитическое гирокомпасирование при неподвижном СП с помощью БМА, БДУС и вычислителя (В), входящего в состав НА. При этом определяется азимут главной оси ТГ, значение которого используется при работе ГИ в режиме движения. С целью снижения ошибок определения азимута плоскости наклонения в режиме выставки поступающая с БМА и БДУС информация анализируется блоком анализатора (БА), который в случае ее неповторяемости управляет двухканальным ключевым элементом (КЭ), который препятствует ее поступлению в В. Положительный эффект: повышается точность определения азимута плоскости наклонения скважины в 2 - 3 раза.Usage: to determine the spatial position of the axis of the boreholes. Purpose: improving the accuracy of inclinometric measurements. SUBSTANCE: gyroinclinometer (GI) contains a ground device (ON) and a downhole tool (SP), which includes a three-stage gyroscope (TG), blocks of a multicomponent accelerometer (BMA) and a two-component gyroscopic angular velocity sensor (BDS). In the exhibition mode, analytical gyrocompassing is performed with a stationary joint venture using the BMA, BDUS and a computer (B), which is part of the scientific equipment. In this case, the azimuth of the main axis of the TG is determined, the value of which is used when the GI is in motion mode. In order to reduce the errors in determining the azimuth of the inclination plane in the exhibition mode, the information received from the BMA and BDUS is analyzed by the analyzer unit (BA), which, if it is not repeatable, controls a two-channel key element (CE), which prevents its entry into B. Positive effect: the accuracy of determination increases azimuth of the inclination plane of the well 2 to 3 times.
Apparatus for determining the path of a well hole during drilling, methods for determining the path of a well hole during rotary and / or mud motor drilling, and for using the apparatus