Diverter-orientator

 

(57) Abstract:

The invention relates to a device for directional drilling, namely by means of drilling at sidetrack in the case of an artificial curvature wells. The invention consists in that the diverter-orientator is an eccentric and includes a housing with a wedge surface in the form of a chute, a latch to install it at the desired wellbore. If necessary, change the orientation of the chute in the desired direction to move the center of gravity due to the eccentricity of individual components and elements of the whipstock or by reducing or increasing the area of the transverse or longitudinal section, as well as by the difference in specific gravity of composite materials that are installed and available, depending on the desired azimuth orientation. The invention provides a simplified design and automatic orientation of the whipstock at the required azimuth. 2 Il.

The invention relates to mining, and in particular to means of drilling at sidetrack in the case of an artificial curvature wells.

A device for automatically focuses and housing, eccentric load placed on the shaft, and clamp the plane of the whipstock, the lower part of the shaft is connected to the frame through the left screw gesamtaussage gearing, the load is mounted on the shaft freely and latch the plane of the whipstock with the possibility of axial movement.with. N 630391 E 21 7/08).

The disadvantage of this device is the design complexity and the inability of the drilling of a sidetrack with him.

Known tube to create artificial slaughter, comprising a housing with a groove and the wedge surface, the spacer wedge and the screw is installed in the groove of the housing and wedge spacer wedge is spring-loaded relative to the housing, and the retainer is made in the form of an elastic rod.with. N 981556, E 21 7/08).

The disadvantage of this device is the inability to Orient the whipstock at the required azimuth.

The goal when creating a device to simplify the design, the automatic orientation of the whipstock at the required azimuth.

The technical result of the present invention is the reduction of time for the kickoff to open the second barrel by reducing tripping, installation and mounting of the disturbances and the technical result is achieved by the fact that in a certain diverter, turn-off the body with a wedge surface in the form of a groove and a clamp for fastening and whipstock at the desired wellbore, the whipstock is made eccentric with the center of gravity relative to its own axis due to the eccentricity of the individual components and their elements and by reducing or increasing the area of the transverse and longitudinal section, and also through the use of the difference of the specific gravity of composite materials that are installed and available, depending on the desired azimuth orientation.

The invention is illustrated in the drawing, where Fig.1 shows a General view in the tubular housing of Fig. 2 is a cross section of the hull a-a in Fig. 1.

The diverter consists of a housing 1 with a wedge surface, which are attached to the chute 2 and the retainer 3. The chute 2 and the retainer 3 to the housing 1 can be attached by any means, as, for example, conventional fasteners, and welding. In this lock can be done in any case, Klenova, collet or any other.

The whipstock with the wedge surface itself is eccentric. As a rule, without additional devices and p is well. The required orientation of the whipstock can be achieved by shifting the center of gravity of the individual elements and components. The center of gravity occurs when the reduction or increase in the area of the transverse and longitudinal cross-section details how the housing 1, the chute 2 and the retainer 3.

Reduction of the area of the sections can be achieved by mechanical removal of its parts in the form of ledges 4, holes 5, the grooves 6, grooves, Windows and so on, putting them in the right direction in the cross section. This leads to a shift of the center of gravity of the whipstock in the opposite direction. On the contrary, the increase in the area of the transverse and longitudinal cross-section leads to a shift of the center of gravity in the direction of its increase. The increase in the cross-section of parts can be achieved by tides and cargo 7, installed in the desired direction. With this configuration, the individual elements and parts of the body, and a groove and the retainer can also serve to offset the center of gravity of the whipstock in the right direction.

The center of gravity of the whipstock can be achieved through the use of the difference in specific gravities of composite materials. If the body instead of steel to use aluminum is C relative to the wellbore inclination. But all this will be strictly normal. The offset in either direction from the normal can be achieved at the expense of additional materials 8 (Fig.2) types of wood, plastics, metals, with different specific gravities from the main body material. Thus the center of gravity diversion occurs and deleting the part of its individual parts. In cases where the desired result direct routes cannot be achieved, then the opposite from the retainer 3 side to the gutter you can attach additional legkousvoyaemoy item type transport pipe, not shown in the drawing.

The device operates as follows. Pre-calculating the direction of orientation of the trench and adding on a flat surface the exact location of the azimuth of its orientation, the diverter thrown into the well. If no transport pipe to the top of the whipstock can be attached to the ring or disc of legkousvojaemogo material for more accurate orientation. After fixation of the whipstock at the desired starting to sidetrack.

Diverter-orientator, comprising a housing with a wedge surface in the form of gutters and colonial made eccentric with the center of gravity relative to its own axis due to the eccentricity of the individual components and their elements, or by reducing or increasing the area of the transverse or longitudinal section, and also by the difference in specific gravity of composite materials that are installed and available, depending on the desired azimuth orientation.

 

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