RU37148U1 - INSTALLATION LUBRICATOR GEOPHYSICAL ULG 65 X 14 - Google Patents

Description

1. The name of the utility model B21V 47/00

Installation lubricator geophysical ULG 65x14

2. The area of technology to which the Nolesian model belongs.

The utility model relates to geophysical equipment for geophysical exploration and work in production wells with overpressure at the wellhead. The equipment allows you to run and lift various downhole tools and devices during geophysical surveys in wells under pressure.

2.1. State of the art

Lime designs of domestic and foreign lubricator units described in the book "Development and repair of oil and gas wells under pressure, authors Yu.V. Zaitsev et al. M. Nedra, 1982. A lubricator installation developed by the Soyuzgazgeofizika trust and demonstrated at the Exhibition of Economic Achievements of the USSR in 1983 was chosen as a prototype.

The disadvantages of the equipment of the prototype are:

- the absence of a device that prevents the device from falling into the well;

- lack of contact sealing device.

3. The essence of the noble model

A distinctive feature of the proposed utility model is high reliability, the presence of multifunctional sealing devices that provide sealing of the wellhead during geophysical research and work in the well, low metal consumption with sufficient mechanical strength, ease of maintenance, the presence of a warning device to prevent the device from falling into the well in case of emergency situations - tearing the device from the cable in the lubricator chamber.

4. Description of the design of the nolesian model

The lubricator installation includes (see Fig. And photo): sectional chamber 3, sealing device 7, cable preventer 8 and signaling device 6 with a pressure gauge 9. The sealing device 7 is attached to the upper part of the sectional chamber by a quick-connecting nut. A signaling device 6 is attached to the lower part of the sectional chamber with a quick-connecting nut. A cable preventer 8 is connected to the signaling device 6 by a quick-connecting nut 6. The sectional chamber is a link between the signaling device 6 and the sealing device 7, intended for placement of geophysical instruments (perforators) with loads in it. Sectional chamber consists of interchangeable pipes of different lengths, with which you can change the size of the sectional chamber depending on the pressure at the wellhead and the height of the fountain. The cable preventer is designed to seal the wellhead with the geophysical cable inside it with the device (perforator) and weights, in order to prevent gas leakage and repair work in the lubricator installation. A cable preventer is an emergency response unit that allows you to block the wellhead with or without a geophysical cable. The load gripping device 1 is used for mounting the borehole lubricator on the gushing of the well with the help of a lifting unit and unloading the structure from bending moments resulting from the deviation of the lubricator from a vertical position. The hydraulic tension sensor 5 is designed to control the tension force of the cable and slings by the pressure gauge indicator during tripping operations. The hydraulic equipment of the lubricator installation consists of a hydraulic actuator for controlling the contact seal, which is a manual plunger pump 4.

Claims (1)

Geophysical equipment for sealing the mouth of production wells during geophysical research and pressure work, consisting of a sectional chamber, a sealing device, a cable preventer and a signaling device, characterized in that it has high reliability, low metal consumption and the presence of at least two types of sealing devices: contact and gas-dynamic, incorporates a gripping device for mounting and dismounting the lubricator on the fountain fittings with the help of Geophysical tower.