RU2392409C1 - Installation for wells drilling - Google Patents

Abstract

FIELD: construction. ^ SUBSTANCE: invention relates to the field of construction engineering, in particular to drilling rigs, and may be used to drill wells in various soils. Installation comprises self-propelled chassis and suspended equipment, which consists of mast, carriage, rotator, stem, mechanism of stem displacement, mechanism of feeding, drilling tool, installation of braces, support bracket and casing equipment. Mast is made of two parts - lower main and upper movable, installed on carriage with the possibility to move carriage with upper part of mast along lower part of mast with the help of feed mechanism. ^ EFFECT: simplified design with reduction of dimensions, improved functioning of units. ^ 2 cl, 2 dwg

Description

The invention relates to the field of construction equipment, in particular to drilling rigs, and can be used for drilling wells in various soils.

A well-known machine for drilling large diameter wells (RU 2316638, class ЕВВ 7/02 from 06/13/06). It contains a running gear on which a mast with a rope block is mounted on top, a drive with a rope, a drill and an open bellow with a flap and a hook for suspension. The mast is equipped with a rotator movable by means of a drive, mounted with the possibility of interaction with a drill stand from drill rods. The drill stand is suspended from the rope through a swivel, and a bobbin and hammer with a crown are sequentially fixed to the lower end of the drill stand. The drive is equipped with a compressor in communication with the swivel, and the bailer is equipped with a drill pipe with a removable suspension hook fixed to it.

The disadvantage of this machine is the inability to use it when drilling using casing pipes.

According to the application RU 2006129989, IPK ЕВВ 3/00 dated 08/21/2006 a drilling complex is known containing a transport base with a drill mast with a working tool located on it in a transport position, and a device for leveling the mast mast located between the transport base and the drill mast, made with the ability to install the drill mast in working position. The device for leveling the mast includes a mounting mast mounted on the mast with the possibility of its reciprocating movement, a rotor mounted on the transport base with the possibility of angular reverse rotation, a movable carriage with consoles mounted on a rotary hydrotor with the possibility of reciprocating movement relative to it, axial joint, one end of which is mounted on a movable carriage, and the other is mounted on a movable rotor mounted on a carriage. There are four hydraulic hoses made with the possibility of regulating their length, the first of which is mounted on the hydraulic rotor at one end and the axle joint at the end of the movable carriage, the second mounted on the carriage and the other on the movable rotor. Some ends of the third and fourth hydraulic hoses are mounted on the consoles of the movable carriage, and their other ends are mounted on a carriage. As a transport base, the drilling complex contains a caterpillar mini-conveyor having a latch with an adjustable inclination relative to the horizon, installed in its front part, as well as two hydro-telescopic stops located in its rear part and made with the possibility of adjusting their length. The carriage in its lower part has an emphasis.

However, this drilling complex is very complex in design.

The closest in essence is the drilling rig by ed. St. No. 1643700, cl. Е21В 19/00 of 04/27/1989. It includes a base on which the mast is pivotally mounted having articulated upper and lower links of equal length, a rotator pivotally mounted on the upper mast link, a mast rotation cylinder for the lower mast link, and a control system for the hydraulic links for turning the links masts, the rod and piston cavities of which are in communication with the cavities of the same name of the main hydraulic cylinder for turning the lower link of the mast. A leak compensation system with an on-off control valve and an OR valve is hydraulically connected to the rod cavities of the upper or lower mast link hydraulic cylinders with the piston cavities of the lower mast mast hydraulic cylinders. The control system of the hydraulic cylinders for turning the mast links is made in the form of a control valve for controlling the upper mast link, a control valve for controlling the lower mast link and a hydraulic control lock control valve connecting the piston cavities of the hydraulic cylinders for turning the lower mast link with the piston cavity of the hydraulic cylinder for turning the upper mast link. The lower link of the mast is made with a lever connected with the rod of the hydraulic cylinders of rotation of the lower link of the mast. Hydraulic cylinders for turning the upper and lower links of the mast are made with the same parameters. The tracking leak compensation system has a control hydraulic cylinder, a clutch with a lever, a lower block mounted for rotation on the axis of attachment of the lower link of the mast to the base, an upper block mounted on the joint axis of the upper and lower links and rigidly connected to the upper link, an elastic element fixed on the lower link of the mast and the envelope of the lower block is a rope, one end of which is attached to the upper block, and the other to the elastic element. The friction clutch is located with the possibility of interaction of its working surface with the lower block, and of the lever with the control valve for switching on the leakage compensation tracking system and is connected to the piston of the control hydraulic cylinder, the working cavity of which is connected to the control chamber of the hydraulic cylinders for turning the mast links.

The disadvantages of this installation are the design complexity and high metal consumption due to the presence of bulky flexible connections for controlling the mechanisms of movement and supply.

The objective of the invention is to simplify the design with a decrease in size, improving the functioning of the nodes.

The technical result achieved by using the invention is to create a universal drilling rig.

The specified technical result is achieved in that the mast of the installation for drilling wells is made of two parts - the lower main and upper movable mounted on the carriage with the ability to move the carriage with the upper part of the mast along the lower part of the mast using the feed mechanism, and the casing equipment included in the installation , mounted directly on the undercarriage of the self-propelled chassis, fixed to use the mass of casing equipment as a counterweight and to provide directional action of the drilling tool ment through the casing installed in the equipment casing during drilling.

Figure 1 shows a General view of the installation for drilling in transport position; figure 2 - the same when working.

The installation includes a self-propelled chassis 1 and attachments, consisting of a mast made of two parts - the lower main 2 and the upper movable 3 mounted on the carriage 4. The attached equipment includes: rotator 5, rod 6, the mechanism for moving the rod 7, the feed mechanism 8 , drilling tool 9, installation of braces 10 and support bracket 11. Casing 12 is installed directly on the chassis of the self-propelled chassis 1. The installation is equipped with casing 13.

The work of the installation for drilling is as follows.

Self-propelled chassis 1 with attachments is installed on the drilling point (picket). The main lower mast 2 with the upper movable mast 3 is mounted vertically on the support arm 11 and fixed by installation of braces 10. The casing 13 is installed in the casing equipment 12 and drilling is carried out in a cyclic manner. In this case, the drilling tool 9 mounted on a movable rod 6, passing through the rotator 5, is lowered by a mechanism for moving the rod 7 into the casing 13 to the bottom. Further, using the rotator 5, the rod 6 is fixed in it in the extended position. The rotation and supply of the drilling tool 9 are turned on. The rotation and supply of the drilling tool 9 is performed by the rotator 5, which is mounted on the carriage 4, which moves along the main mast 2 by the feeding mechanism 8. However, the rod moving mechanism 7 does not turn on, since the rotator 5, the upper movable mast 3 and the mechanism for moving the rod 7 move synchronously. After filling the drilling tool with soil, the rotation and feed are stopped and the rod 6 with the drill tool 9 is raised by the mechanism for moving the rod 7 for unloading. The process is then repeated.

The proposed installation for drilling wells has the following advantages compared with the known.

1. Downsizing in transport position.

2. Improving weight distribution.

3. Improving the dynamics at work.

4. When drilling, it is not necessary to pit the cable of the rod moving mechanism, since they move together with the rotator.

Claims (2)

1. Installation for drilling wells, mainly using casing pipes, including a self-propelled chassis with attachments consisting of a mast, carriage, rotator, rod, rod movement mechanism, feed mechanism, drilling tool, installation of braces, support bracket and casing equipment, characterized the fact that the mast is made of two parts: the lower main and the upper movable mounted on the carriage, with the possibility of moving the carriage with the upper part of the mast along the lower part of the mast using the mechanism Achi. 2. Installation according to claim 1, characterized in that the casing equipment is installed directly on the undercarriage of the self-propelled chassis is fixed to use the mass of casing equipment as a counterweight and to provide directional action of the drilling tool through the casing installed in the casing equipment during drilling.

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