SU69955A1 - Echo sounder - Google Patents

Description

The echo sounders used in the oil fields are quite complex, expensive and heavy instruments. The complexity, the large cionirfocib, and the weight of the instruments depend mainly on the need to amplify the applied reflected sound waves, carried out with the help of electrical amplifiers, which require for their power sources of power (batteries, tori, field lighting).

and networks). Cold, cheese weather adversely reflects on the performance of fine hardware, frustrating it and distorting results. All this complicates the use of these devices.

Experiments conducted by receiving sound and infrasonic gas waves on membranes made of thin elastic rubber film, as well as on paper ones (and

other materials) membranes made in the form of Chinese lanterns or furs of harmony showed that the energy of the reflected infrared waves in the B1 well is quite enough to produce with an ordinary pen on an evenly moving paper tape of automatic recording available for

viewed with the naked eye. Such a membrane oscillation receiver is used in the proposed non-electric echo sounder, by which the liquid level in the well is determined by an elastic wave created by cutting off the gas in the annulus space. The possibility of using such receivers is provided in the proposed echo sounder with adequate rigidity of the characteristics of excited vibrations, for which according to the invention a balloon is used containing compressed air injected into the well through a hole penetrated by the knife in the diaphragm installed between the cylinder and the annular space of the well.

The invention is illustrated in the drawing; in FIG. 1 which shows the installation of the proposed echo sounder at the well and in FIG. 2 - cylinder ustoystvo.

In the drawing there are: / - polished deep pump rod, 2 - pump tube, 3 - flange covering the well, 4 - balloon for suppressing the elastic wave (Fig. 2), 5 - hose, connection 69955

diaphragm with a well, Q - a membrane socket, 7 - a membrane for actuating the pen, 8 - a record; writing pen, 9 - drum for strengthening registration paper, 10 - gir, drive p1a rotating mechanism, 11 - rotating mechanism, 12 - tripod, U5-manometer, / - manual car pump, J5 - cylinder tube, 16 - cylindrical lever knife, / 7-aperture.

Having installed the instrument at the well {FIG. 1), the apparatchik turns on the rotating mechanism //, fills the pen with 8 ink, lays thick paper 17 into the nozzle 15 of the balloon 4 and pumps air into the balloon 4 to a pressure of 0.5 to 3 atm, depending on the depth of the well. Making sure that the feather 8 is squeaking, the apparatchik activates the rotating mechanism //, then after 2-3 seconds. produces a knife 16 penetration knife / 5 (Fig. 2) holes in the diaphragm 17.

Air is exhausted from the cylinder to the well. Reflected from the benchmarks and the surface of the liquid, the elastic waves through the hose 5 and the socket 6 act on the membrane 7 and set in motion the feather 8 connected to it, which produces on the paper worn on the drum 9 a recording of the oscillation curve of the membrane. The rotating mechanism operates within 10-30 seconds. The uniformity of its progress is achieved as usual by a t-shirt (of any type) or by a wind regulator.

To overcome the inertia of the rest of the rotating mechanism during start-up, a spring 18 is used (Fig. 1) acting on the weight 10 for the first 2-3 cm of its stroke. 3

The implementation of the exhaust through the hole in the diaphragm, cut by a knife, provides adequate rigidity (sharpness) characteristics of the excited elastic vibrations, and this characteristic of the latter allows us to successfully use vibration detectors in the form of sensitive rubber or paper membranes for recording signals. This last circumstance eliminates the entire electrical part from the oscillation receiver, which essentially simplifies and simplifies - without sacrificing accuracy - the whole apparatus, allowing it to be portable and suitable for servicing by one person low to;

Echo sounder to determine the level of fluid in the borehole using an elastic wave created by cutting off gas in the annulus, characterized in that in order to obtain a sharp characteristic of the excited oscillations, a cylinder containing compressed air injected into the borehole through the hole the diaphragm installed between the cylinder and the annulus of the well.

FIG. one

FIG. 2

17 16