SU447502A1 - Deep flowmeter - Google Patents

Description

one

The invention relates to instruments for the hydraulic engineering research of oil and gas wells. It can be used to remove the inflow profile and the depth of fluid in ultra-deep wells with high temperatures and pressures. Known depth debitometer, containing the body, the registration mechanism and the clock-drive ..

"However, in the known debitrers, the rotation energy of the Unloaded turbine from the fluid flow in the well is used to drive the regressing mechanism-Ma, and the amount of this energy is

Many are not enough. To overcome the resistance forces in a reduction gear and a registering mechanism. Owing to this, there occurs (slippage or complete stopping of the driven part of the magnetic coupling and the reducer, due to which the results of the instrument are distorted or completely absent.

The purpose of the invention is to improve the reliability of operation of the debitometer at high temperatures, temperatures and pressures .;

This is achieved due to the fact that the fur, the registration base is provided with an additional source of energy, made in the form of a leaf spring, fixed at one end to the gearbox housing, and the other to its gear shaft, and on the input shaft 5) of the gear unit is installed a ratchet wheel that interacts with fork, which is rigidly fixed magnet driven parts. magnetic coupling.i

FIG. 1 shows a general view of the meter; section; on 4 mg. 2 - measuring and registering knots, incision; Fig. 3 shows a kinematic diagram of the measuring and recording mechanisms.

The depth debitometer (see Fig. 1) includes a housing 1 in which the jet is placed; Guide mechanism 2, measuring mechanism 3, interaction via coupling 4 with registering mechanism 5, and clock drive 6 .. i

Measuring mechanism 3 (see Fig. 2) | includes an unloaded impeller 7, on the axis 8 of which a U-shaped magnet 9 is fixed. By carrying out a small coupling 4, the coupling acts through a crissing partition Yu with a magnet 13. a driven part of the magnetic coupling. Mapst 11 is rigidly fixed on the plug 12 mounted on the axis 13, meshed with the ratchet wheel 14 mounted on the input shaft of the reduction gear 15. The reduction gear 15 is provided with an additional source of energy, made in the form of a plate spring 16, fixed at the end to the body gearbox 15, and a shchugim - to its output shaft 17. A feather 18 is fixed on the output shaft 17, recording the measurement data on a form fixed in the drum 19 of the registering mechanism 5. Launched into the well with a flowrate second spring 16 ,. unpacking with the help of the oil time relay CTpyeiianja of the Owning Mechanism 2, supplying the fluid flow)} and the impeller 7. The impeller 7 rotates the U-shaped magnet 9, which interacts with the magnet 11, due to magnetic forces, and drives the plug 12, oscillating fork 12 drives ratchet wheel 14, gears of the reducing gear 15 and output shaft 17 with feather 38. During this period, the energy of the plate spring 16 is summed onto the shaft 17c.energy from the impeller 7. The spring 16 plant is carried out by the output shaft 17, and the supporting mechanism plays an auxiliary role (keeping the gearbox 15 from rotating). The reduction gear 15 transmits the power to the recording pen 18 due to the energy of the actuated spring 16. In this case, the turbine 7 plays the role of a sensor only. The rotational rotation of the pen 18 is directly proportional to the rotational speed of the impeller 7,. Consequently, the angle of rotation of the pen for a certain period of time is proportional to the total number of revolutions of the turbine for the same period of time. The length of the recording line is directly proportional to the flow rate of the measured flow. The subject of the invention is the Depth debitometer, comprising a housing, an impeller with a magnetic coupling, interacting through a diamagnetic partition with a reduction gear, a recording mechanism and a clock drive, which, in order to increase the reliability of the operation of the debitometer high, pressures and temperatures, the mechP13m of registration is supplied with an additional source of energy, BbinojuieHHbiM in the form of a leaf spring, fixed at one end, to the body of the gearbox a; others - to its output; to the new shaft, and to the input shaft of the gearbox / ratchet wheel, which interacts with a fork, on which the magnet of the driven part of the magnetic coupling is rigidly fixed.

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fig 2