SU28463A1 - Instrument for determining the curvature of boreholes - Google Patents

Description

The present invention relates to tools for determining the curvature of boreholes, both cased and uncased, in cases where the wells are not in the field of magnetic influence (iron casing and passable magnetic rocks). To update the angle of curvature of the well, a previously known pattern with a recorder is used, and to determine the azimuth, a previously known method of fixing the position of the magnetic needle on the moving tape with a copy tape is used. In a variant of the device for determining the angle, the tomb serves as a tic and is known previously as a spherical concave over it. The value, at which the convex numbers of the infinite chain are pressed at the time of measurement with the help of cams, which entrusts the movement from the clock mechanism placed in mathematics.

FIG. 1 of the schematic drawing shows a longitudinal section of an instrument for determining the curvature of a drill (evv1h wells; Fig. 2, a front view of it in section; Fmg. 3, a longitudinal section of a variant of the device; Fig. 4, a view of it in front, in section; Fig. -Longitudinal section

a curvature calculating apparatus from the instrument records; FIG. b-not ;. his top.

The mechanism showing vertical deviations, and the mechanism orienting deviations by country. installed in one common EPR.EU :, which has an eltiptic fsr / .y. The frame is inserted into the glass, in the KCT; .- JC-; it can freely rotate on ii: irife and 3J balls. One side of the aiinarat (along the plane of the simgpetrka, which passes through the minor axis of the ellipse) is loaded, as a result of which the center of gravity of the apparatus will occupy the lowest position, i.e. The apparatus always, when deviating, will be positioned with the loaded side in the direction of the vertical, from which the well deviated (Fig. 1 and 2).

The mechanism showing vertical deviations consists of a tandem, which is a crank arm 7-3, rigidly fixed on axis 2, on one arm 7 of which a weight is suspended, the other arm 3 is connected to a thread rebased through roller 7, to which is hung pen 5 moving up and down in frame 6,

The feather 5 touches the drum 8 driven by a clockwork inside the drum 8, tightly covered with paper tape on the outside, on which the feather 5 makes a graph of the deviation of the borehole from the vertical direction.

The mechanism orienting the deviations of the countries of the world is set on the A-axis, and the center of gravity is located on the x-axis of the L. In the working position, the mechanism will always be in a horizontal position. On the roller 11, freely rotating on an axis, several layers of paper tape are wound, which, unwinding from the roller 11, passes the guide rollers 13 and 12 over the magnetic arrow 9 and winds onto the drum 10, set in motion by a clock mechanism placed inside . Under the moving tape laid copying tape. The crooked / fitted gear wheel 14 is engaged in engagement with the gear wheel 15, which, in turn, is connected to the gear wheel 16 having the same speed with the gear wheel 15. There are rigidly mounted cams 17 and 18 on the gear wheel axes 15 and 16. The role of the cam / 7 is to remove the gear wheel 16 from the working position, moving the gear wheel 16 together with the axle, and thus freeing the gear teeth 75. In order for the gear wheel 16 together with its axis to remain in an idle position until the desired moment common axis A is worn with two loosely seated holders 19. When the cam 17 moves the axis of the teeth 16, the dog 20 rests against the tooth of the holder 19 and does not allow the holder to assume its previous position. The cam 18 serves to raise and lower the rod 27, which by the right moment raises and lowers the magnetic arrow 9. With the rod 21 lowered, the magnetic arrow lowers onto the point 22, on which it rotates freely in a horizontal plane in the South-North direction. When raising the cam 18 of the rod 27, and, consequently, the arrows 9, the cam 17 removes the gear 16 from the working position. When the arrow T is set in one place, the cam 18 lifts it N to the paper tape, under

- 2

which there is copy paper. The arrow 9 at its ends is provided with small brads with the numbers 7 at the southern end and 2 at the northern end, which, pressing their ends against the tape, leave the corresponding mark on it. Since the tape is in motion all the time, a line is drawn on it, from which it is possible to determine the position of the arrow for the required moment. The whole mechanism is located in the frame 23. In the lower part of the frame there are two slots 24 in which the pawls 20 pass. The slots are covered with a strip 25, fastened on one end on two springs 26, connected to a pin 27 from the other. touches the rim. If you pull the pin 27, the strip 25 will be pressed against the rim and at the same time will press the dog 20, forcing the gear 16 to release and give it the opportunity to return to the working position. The movement of the strip 25 is obtained under the action of springs 26, which are connected by means of a rod 28 with a knee 4, which is loosely mounted on axis 2. When the spring is not in working position, the springs are compressed, the knee 4 is raised and presses the pilot 7–3 so that it does not swing. If you sweat the strap 27, then the springs lengthen from this, bend 4 releases the primary and he begins to record the angle of deviation of the borehole.

In the embodiment of the device for determining the angle of deviation of the well, a master 7 (Fig. 3 and 4) is used, inside which is placed the clock mechanism 2 and two gears 5. The clock mechanism 2, in turn, is equipped with two gear wheels, whose tooth teeth correspond to tooth pitch 3.

An endless chain 5 with convex numbers ff located at the same distance from one another is worn on the gears (Fig. Zi4). When the clock 2 is in operation, the chain 5 moves, and the numbers 6 fitted into it move. The key 7 swings in a spherical concave surface 7, the radius equal to the length of the ball with a central angle 130. The moving endless chain 5 gear 3 is fitted on its axis a gear wheel, which, through another gear wheel, rotates the axis of the cam 8, with which the number 6 is pressed against the spherical surface 7 and makes prints.

The mechanism determining the azimuths is similar to that of the main device. For the suitability of the device in the case of measurement in the field of magnetic influence, this mechanism is suspended on the rod 20 by means of a Hook 27 hinge.

When the device can be used a device with which you can read both deviations from the vertical and azimuths. This counting machine consists of a cylindrical box provided with a limb 2, in the center of which rod 7 is placed on which a spherical concave surface 6 is placed with the orientation of the countries of the world along limb 2. For azimuth reference there is a vertical measuring ruler 4 associated with the box, and horizontal measuring ruler 5 with a longitudinal slit, in which rod 3 is fastened. To read the measurement, rod S is moved together with ruler 4 (Fig. 5 and 6), until the tip of the rod 3 moves on the reference print with a ferric surface 6. The angle between the ruler 4 and the 0-180 ° line will give an azimuth, and the deviation from the vertical can be read along the ruler 5.

The subject is a sketch.

Claims (3)

1. A device for determining the curvature of boreholes, in which for the determination of the angle of curvature serves a master with a recording device, and for MU5 - azimuth-magnetic needle, characterized in that the pen 5, which records the angle of deflection on the drum 8, covered with paper tape, driven by the clockwork mechanism, is suspended on a thread thrown through the roller 7 and connected to the arm 3 of the crank lever to another the shoulder 7 of which loads the weight, and to mark the azimuth of the curvature on the paper tape by pressing the magnetic needle 9 with its tips at the ends at the time of measurement, an eccentric cam 77 driven by the drum W with a clockwork serves, and under the boom This is an important ribbon that is reeled up by the drum 7 (from the roller 77, a copy paper is laid to mark the position of the arrow 9 at the moment of measurement (Fig. 1 and 2). 2. When using the device according to claim 1, use a 7-man freely deviating in all directions in which the clock mechanism is placed to move through the gear 3 of the endless chain 5 with convex numbers b, to press which to the spherical surface 7 at the time of measurement the cams 8 (Fig. 3 and 4). 3. When using the device according to claim 1, use the counting machine for determining the curvature of the instrument records, consisting of a cylindrical box, fitted with a limb 2 on the outside, in the center of which is placed a rod for fitting a spherical surface with an orientation according to countries of the world along Limb 2, Two measuring bars are associated with this box: a vertical azimuth for reading and a horizontal 5 with a longitudinal slit for. install. h stem 3 (Fig. 5 and 6). pg L - f-L. 1G, ..,.,., 1 ---; - Mr. T. J, 3. "G 5. J il.bi. -y-7 - | I, Ur: 4 / I cfes- v f ..,.,) Γ I ii V v --- .- v (, t t | -1.;; Щ, IXi. I,, i | L .. f: -: j | C4;, :: E: J1 I0 i HI