The method of supplying drill a crane when drilling vertical wells

 

(57) Abstract:

The invention relates to mining, construction and other industries that can be used self-propelled installation for drilling shallow vertical wells. The inventive pre-exhibition drill in working position by the manipulator, the subsequent move it to the bottom and grinding from the well after her sinking, when the exhibition drill lifting section boom arm set at an angle above the horizon, the orientation of the extension and telescoping sections of the boom to the holes vertically, for the initial part of deepening wells operating supply Obura carry out the lowering of the lifting section of the jib arm from the top position down to twice the value of the same angle by appropriately turning it in a vertical plane, with the maximum angle is determined by the formula

< / BR>
where L is the distance from the point of suspension of the extension section of the jib of the crane to lower edge borax, md- permissible regulations of the angle of deviation of the borehole from the vertical, glad, R is the turning radius of the point of suspension of the extension sections are numerically equal to the length padjoy flow produced by extension of the telescopic section of the boom of the crane on the full length of the telescope. 1 C.p. f-crystals, 3 ill.

The invention relates to mining, construction, defense, Railways, MES, fuel and energy complex and other industries that can be used mobile self-propelled units for drilling shallow vertical wells.

A known number of domestic and foreign analogues of the invention, providing for the supply of borax (in the process of drilling wells) using installed on the chassis of the vehicle hydraulic manipulators, multi-purpose ladder shafts, equipped with swivel suspension parts on their end of the working tool.

From domestic to include, for example, the method implemented by the manipulator ISS-4032 Balashikha plant cranes, equipped with hydrodrill (Building and road machines, 1995 N 10, page 31, Fig. 3).

Foreign identical ways borax using hydraulic cranes about the same class of the Austrian company PALFINGER equipped with earthy brown RE-500 screw type (brochures Palfinger Hebetechnik GmbH, Moosmuhstrasse 1, A-5203 Kostendorf/Salzburg Austria, ed. 05/92 and 1995).

According to the method of the multi-link arm manipulator of Ainy carried out by moving the point of its suspension from the top position down by an appropriate rotation of the boom in the vertical plane.

In the move to a specified point on a curved trajectory (circle with radius equal to the length of the rotating link) is nursing borax from the vertical deepening of the well. This treatment (heaping) borax correct when drilling a corresponding linear displacement of the point of its attachment by necessary extension of the telescopic section of the boom. When performing work manipulator serve two people. One of them is located in the control cabin, and the other close to the drill site and provides visual control over the vertical position of the tool.

If sverhpopulyarnogo deviations borax from the vertical, he shall notify his partner and that produces a corresponding adjustment of the position of the working tool as mentioned above.

Thus it is possible to drill shallow wells in remote (cluttered with various objects, such as building materials) places at a great distance from the location of the pointing device.

However, it is complicated to implement and requires high professional training service installation personnel.

Specified the DKI well by combining two independent movements of the boom (rotational and linear) as when working stroke, and in the process of extracting the drill from the well.

In addition, the way to feed the drill does not allow full use of the possibilities of hydraulic manipulators in terms of ensuring maximum drilling depth for one flight, because in this case the supply is not used, the stroke of the telescopic boom, because before you begin it is installed horizontally or at an angle to the horizon.

According to the method of filing borax manipulator [1] before drilling the drill is put into position by raising the boom arm up with the orientation of the tool vertically so that the line passing through the center of rotation of the boom and the suspension point of the drill, was located at an angle to the horizon, and the labor supply of the latter with the passage of the wells is performed by moving the point of hanging it from the top position down at least twice the value of the same angle by an appropriate rotation of the boom in the vertical plane.

When necessary to eliminate the deviation of the trajectory of the drill from the vertical adjusting movement of the point of suspension of the latter is in the process of drilling a well automating the manipulator. As a result, during rotation of the boom its pull-terminal element suspended therein brown moves along a vertical straight line.

However, with all the obvious advantages of this known method implementation it is associated with considerable technical difficulties and costs. This circumstance is due to the fact that to ensure proper trajectory is supplied to the downhole tool required manipulators with very complex kinematics, equipped with the relevant authorities of automatic control of workflow.

When drilling relatively shallow, on the order of 5 m or less, vertical wells this complication is clearly justified from the economic point of view.

In addition to observed this known method of feeding the drill has the same shortcomings as discussed above counterparts. Due to the nature of the structural design and kinematics of movement of the boom manipulator used in the implementation of the method, the depth of drilling one flight is limited by the magnitude of the rotation and extension of the telescopic body of arrows.

One of the known analogues of the proposed technical solutions closest (prototypetraining mechanical hand [2]

Specified mechanical arm is essentially nothing but a crane above type and is used to supply heavy tools, such as drills. It is installed in the vehicle on special struts and contains a rack placed on a regulated basis. At the end of the bar swivel fixed cylinder extendable arm (similar to lifting the sections of the manipulator). By the end of this lever is hinged to the second extendable arm (similar to remote and telescopic section of the boom manipulator). On the cylinder of the second lever is set carpal mechanism rotates the working tool. Move mechanical arms are hydraulically driven.

- Implemented method of feeding the drill arm when drilling shallow vertical wells [2] differs from the above analogs, because in accordance with them before drilling lifting section (first lever) mechanical hand is horizontal in orientation of the remote and telescopic sections (the second lever with cylinder) vertically. Working feed drill exercise by extending only one telescopic section. At this depth the ore to use the capabilities of hydraulic manipulators are considered type in terms of ensuring maximum drilling depth per flight.

Object of the invention is the simplification of the method of supplying the borax multipurpose manipulator when drilling vertical wells and increase the drilling depth in one flight.

This is achieved by the fact that according to the proposed method before drilling hoisting the jib section of the manipulator set at an angle b to the horizontal extension and the telescopic section of the boom with brown placed vertically. For the initial part of drilling a well working feed of the drill is performed by lifting and lowering the sections from the top position down to twice the value of the same angle by appropriately turning it in a vertical plane. After that, the rotation of the lifting boom is stopped, and further the supply of borax is produced by extending the telescopic sections of the specified angle b is determined from the conditions guaranteed when sinking wells permitted in the practice of drilling of deviation from the vertical.

In Fig. 1 shown mounted on the chassis of the vehicle hydraulic manipulator multipurpose implements the proposed method of feeding the drill during the drilling of shallow wells in the initial position; Fig. 2 palaboy bodies of the manipulator and the tool for implementation of the proposed method.

The proposed method of supplying borax 1 mounted on the chassis 2 of the vehicle 3 by the manipulator 4 multi-purpose when drilling vertical wells 5 is in the pre-exhibition drill in its working position, the subsequent move it to the bottom and retrieved from the well after its sinking. When the exhibition drill in the operating position of the lifting section 6 (direct OS) arrows 7 manipulator set at an angle b to the horizontal (direct OE) with the orientation of the extension and telescoping sections 8 and 9 of the arrows 7 brown 1 vertical (straight SG). In the initial part of GM (equal to the segment SD) deepening of wells working feed of the drill 1 is performed by the lowering of the lifting section 6 arrows 7 from the top position down to twice the value of the same angle b by appropriately turning it in a vertical plane relative to the hinge 10 of the rotary stand 11 of the manipulator. At this point With (12) articulated suspension of the extension of section 8 of the boom 7 is moved along a curved path 13 (the circle with radius R, is numerically equal to the length of the lifting section 6 arrows 7).

At the end of the plot the trajectory of the CE, because of its krivolineynoe Bur 1 leaves (deviates) from the vertical distance A (tregnago the provisions of TH is below it on the corner While lifting section 6 arrows 7 occupies the position of OD.

To this point, the drill 1 due to the same circumstances again brought to the vertical ( = 0) While adjusting the vertical position of the drill 1 in the area of rotation of the lifting section 6 arrows 7 in angle 2 by itself (automatically) without the operator's intervention.

The maximum rotation angle of the lifting section 6 of the boom 7 is determined by the formula

< / BR>
where

L is the distance from the point of suspension of the extension section of the boom to the lower edge Boer, M.;

dpermissible regulations of the angle of deviation of the borehole from the vertical, happy (in the spectrum of drilling shallow wells, for example, under the piles, it is taken equal 0,0174-0,0262 rad);

R is the radius of rotation of the point of suspension of the extension sections are numerically equal to the length of the lift section of the jib, m

When the node is moved suspension 12 remote section 8 arrows 7 to a point On the rotation of the lifting section 6 of the boom 7 is stopped. Further feeding of the drill 1 is produced by extending the required rate of telescopic sections 9 arrows 7 full-length telescope MN. In this work the flight deepening (sinking) ends well.

While passable for one R is given by the formula

h = 2Rsin (m);

b the angle of the lifting section of the jib to the horizon, I am glad.

At the end of the flight Bur 1 in reverse order to rise up to the surface where do the cleaning, capacity, if necessary, of its length by setting the required number of quick-detachable cords (drill rods) and preparation for the next flight.

The proposed method is simple to implement and can significantly increase the depth of penetration of vertical wells when applying borax with hydraulic cranes, multi-purpose for one flight with regulatory requirements for vertical drilling.

In the absence of a front drilling operations, the drill can be easily removed from the telescopic section of the boom and the other working tool, after which the manipulator can be used to perform other tasks.

At present JSC "NC Uralterminalmash" carried out a search-calculation and design studies, approved a comprehensive program providing for the issuance of construction documentation, manufacturing and testing in 1997, easily removable drill unit multi-purpose "Sinemorets-75", Rea is the situation work confirmed the possibility of obtaining by carrying out the invention the above-mentioned technical result consists in the simplification of the method of supplying drill with hydraulic cranes, multi-purpose when drilling vertical wells and increase the drilling depth in one flight.

1. The method of supplying drill a crane when drilling vertical wells, which consists in pre-exhibition drill before drilling into the working position, the subsequent move it to the bottom and retrieved from the well after her sinking, characterized in that when the exhibition drill in the operating position of the lifting section boom manipulator set at an angle above the horizontal position with the orientation of the extension and telescoping sections of the boom to the holes vertically, and for the initial part of deepening wells working feed of the drill is performed by lifting and lowering the sections from the top position down to twice the value of the same angle b by appropriately turning it in a vertical plane, then the rotation of the lifting boom, stop further supply of borax is produced by extending the required rate of the telescopic section of the boom of the crane on the full length of the telescope.

2. The method according to p. 1, characterized in that the maximum angle is>< / BR>
where L is the distance from the point of suspension of the extension section of the jib of the crane to lower edge Boer, M.;

dpermissible regulations of the angle of deviation of the borehole from the vertical, glad;

R is the radius of rotation of the point of suspension of the extension sections are numerically equal to the length of the lifting section boom manipulator, m

 

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FIELD: oil and gas extractive industry.

SUBSTANCE: method includes use of device providing for manufacturability of assemblage of casing and drilling columns and concurrent drilling by two columns, provided with independent drives, and drilling, by casing column, of non-stable rock solids performed with frequency no greater than one calculated from formula

where Vmec - mechanical drilling speed, m/min, Fr - friction forces against rotation, Ften - friction forces against linear displacement, R - casing column radius, m, α - angle between vectors of directions of linear and rotating movements.

EFFECT: higher effectiveness, higher productiveness, higher reliability.

2 cl, 5 dwg, 1 ex

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