SU911010A1

SU911010A1 - Transmitter of apsidial plane position in core drilling tool

Info

Publication number: SU911010A1
Application number: SU802972304A
Authority: SU
Inventors: Анатолий Валентинович Трушин
Original assignee: Всесоюзный научно-исследовательский институт гидрогеологии и инженерной геологии
Priority date: 1980-08-19
Filing date: 1980-08-19
Publication date: 1982-03-07

Description

Изобретение относитс к горному делу,.к средствам, примен емым дл индикации положени керна, отбираемого при бурении, геологоразведочных скважин.The invention relates to mining, as a means used to indicate the position of a core sampled during drilling, in exploration wells.

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Известны устройства дл определени положени апсидальной плоскости на забое скважины, содержащие спускаемый на трубах прибор, св занный с отметчиком керна 1.Devices for determining the position of the apsidal plane at the bottom of a well are known, which contain a device that is lowered on pipes and is associated with a core meter 1.

Недостатком этих устройств вл етс необходимость выполнени дополнительных спуско-подъемных операций .The disadvantage of these devices is the need to perform additional tripping operations.

Более производительны средства, где фиксирование положени апсидальной плоскости по отношению к метке на керне производитс непосредственно при бурении.More productive means where the fixation of the position of the apsidal plane with respect to the mark on the core is carried out directly during drilling.

Известен датчик, который содержит шарик-отвес, корпус с указателем положени шарика и подвижный относительно корпуса шток с выступом.A sensor is known that contains a plumb-ball, a housing with a ball position indicator and a stem with a protrusion movable relative to the housing.

фиксирующим положение шарика на торце корпуса 2.fixing the position of the ball at the end of the housing 2.

Однако дл показаний необходима разборка со сн тием деталей,However, the readings require disassembly with removal of parts

Целью изобретени вл етс упрощение сн ти показаний датчика.The aim of the invention is to simplify the reading of the sensor.

Указанна цель достигаетс тем, что в датчике указатель положени шарика выполнен в виде группы стержней , закрепленных в корпусе с воз10 можностью аксиального смещени , концы которых равномерно расположены на поверхности торца корпуса, при этом корпус выполнен с отверсти ми дл размещени стержней,а торец 15 с сопр женными с отверсти ми углублени ми под шарик.This goal is achieved by the fact that in the sensor the ball position indicator is made as a group of rods fixed in the housing with an axial displacement possibility, the ends of which are evenly located on the surface of the housing end, the housing being made with holes for placing the rods conjugated recesses with a ball.

На чертеже изображен датчик, разрез .The drawing shows the sensor section.

Внутри корпуса 1 установлены Inside case 1 installed

Claims

20 rods 2 of the plumb-ball position indicator 3. The hexagonal cross-section stem has an annular protrusion 5, by means of which the ball 3 is held in one of the recesses 6 which are coupled with the openings 7 at the end 8. The sensor is connected with the lower end to the projectile oriented core, and the top - with a string of drill pipes. When placed on the face, the annular protrusion 5 is displaced downward and releases the ball 3, which under the action of gravitational force takes a position in the apsidal plane. When removing the projectile, the annular protrusion 5 returns to its original position, and the ball 3 is installed in one of the recesses 6, advancing the corresponding rod 2 from the opening The protruding rod corresponds to the position of the apsidal plane. The use of this technical solution increases the work efficiency and simplifies the maintenance of the device. Claims of the invention of the position of the apsidal plane in the column tube containing. A 4-ball plummet body, a body with a ball position indicator and a rod movable relative to the body with a protrusion fixing the ball position on the body end, characterized in that, in order to simplify the reading of the sensor, the ball position indicator is made as a group of rods fixed in an axial displacement housing, the ends of which are evenly spaced on the surface of the end of the housing, wherein the housing is provided with openings for accommodating the rods, and an end with openings adjacent to the holes for the ball. Sources of information taken into account in the examination 1.Kichigin KM and others. Small-sized devices, methods of selection and research oriented core, hey, VIEMS. Ser. Technique and technology exploration; Production Organization, 1975, No. 21, p. thirty.

2. USSR author's certificate for application number 27577 3 / 22-03, cl. E 21 V 25/16, 1979 (prototype).