SU74043A1 - Depth sampler - Google Patents

Description

The proposed depth sampler provides for its repeated use without re-charging with oil and consists of a time relay, a shut-off mechanism and a sample chamber. The time relay is made in the form of an oil-filled cylinder 2 (Fig. 1), in which the load-piston 3 moves with a calibrated orifice B and a ball valve 4.

In the upper part, the cylinder communicates with the bellows 6, which is adapted to change the volume of the oil when its temperature changes and to balance the pressure between the inner and outer cavities of the cylinder. In the lower part of the cylinder is placed otsekayushush.iy mechanism.

The sample chamber is in the form of a tube}, with two inward-opening flap valves. The upper valve 5 is closed by the spring of the stem of the shut-off mechanism connected to the valve stem by the coupling 7. The lower valve 8 (Fig. 2) closes simultaneously with the upper valve, when the ball 9 connected by means of the rod 10 to the upper valve opens

latches / U

release the valve beater.

Before descending into the well, the apparatus is turned upside down with the lower valve. In minutes the piston will occupy the working position. Then using a screw or a screwdriver, which is inserted into the socket L of the coupling, is first pulled up the upper valve, and then by direct pressure on the lower stem. Thereafter, the apparatus is re-inverted with the lower kllpan down and lowered into the well. According to the device of the intended immersion depth, wait until the relay has reached the operating time and the valves are closed. The sampler is then removed to the surface.

Subject invention

The depth sampler, about 1-1 hours, and with the fact that, in order to repeatedly n-use it without recharging with oil, it is made in the form of a cylinder 2 with port 3, equipped with a calibrated hole B and a ball clanan 4, designed for the propulsion of oil.