DE3347823C1 - Rotary-drilling rig - Google Patents

Abstract

Published without abstract.

Description

3 4

In that the guide tube has a Vprrich- The device 7 for the discharge of the pulp

device for the horizontal lengthening of the Bohrrohrkolon - a hollow, annular housing 10 (Fig. 2) with a

ne is provided, the extremely laborious inner circumferential window 11 and is provided with a

Ancillary work provided by moving aside the vertebra bush 12, which rests on bearings and opposite

and the guide tube has a radial opening 13 in front of the borehole mouth 5, the window 11.

are necessary in the prior art, avoided. The guide tube 4 runs through the socket 12

An advantageous embodiment of the invention will have a continuous longitudinal groove 14. The length of the groove

achieved by the features of claim 2. This 14 corresponds to the length of the passage of the guide tube 4.

Execution of the device for the horizontal extension The guide tube 4 has one in its interior

Like the drill pipe column, an automatic 10 attached telescopic connector 15 (FIG. 3) enables.

see control of the process of locking and unlocking This is with one end of a knee 19 (Fig. 2)

ment and the switching on and off of the supply of connected, the other end of which protrudes into the longitudinal groove 14

Compressed air. and fastened in the radial opening 13 of the bush 12

Another preferred embodiment of the Brfin- is. The length of the telescopic connecting piece 15 in the

application is reproduced in claim 3. The equipment 15 in the pulled state equals the aisle length of the guide

of the movable connector with a resilient connecting tube 4.

dungsmuffe ensures the reliable function of the The drilling rig with a rotary rotor has a that Device as a result of the separation of the connecting sleeve guide tube 4 comprehensive insert 20 (Fig. 2), fe from the airtightly closing movable socket a torque from the rotor 3 to the guide tube Zen. 20 4 transmits. The guide tube 4 is eccentric relative to the axis of rotation. Of the th exemplary embodiments with reference to the drawing. Insert 20 (FIG. 2) is explained in more detail in the rotor 3 relative to the guide gene. It shows tube 4 installed eccentrically in such a way that its axis of rotation

F i g. 1 shows the general view of an inventive se with the axis of rotation of the drill pipe column 6 together.

Drilling rig, 25 falling, and the longitudinal groove 14 is (Fig.2) relative to

F i g. 2 the overall view of the drilling rig with partly axis of the drill pipe column 6 on the side of the low-

sem longitudinal section, most turning radius executed. The eccentric position of the

F i g. 3 the device for the fixed arrangement of the guide tube 4 and the insert 20 and a pre-device for the discharge of the pulp in the tube holder jump of the insert 20 ensure the transfer in section, 30 of a torque on the guide tube 4, which with

F i g. 4 the overall view of a device for the smallest possible dimensions and with circular-

horizontal lengthening of the drill pipe column is carried out with a hand-like cross-section.

control, on the rotor 3 is a device 22 for fixed

F i g. 5 shows the overall view of a device for the arrangement of the device 7 for the derivation of the

horizontal extension of a drill pipe column with 35 pulp (Fig. 2, Fig. 3) attached to the resilient supports (23

pneumatic control, (Fig. 3) contains.

F i g. 6 the section XI-XI in FIG. 5 when pivoted A spindle 26 of the vortex 5 is for the transmission

Hinge. a torque on the drill pipe column 6

The rotary drilling rig according to the invention is for the see.

Drilling of boreholes with reverse rinsing according to 40 The device 7 for the discharge of the pulp

different pumping systems are provided, namely with (F i g. 2) contains a drain nozzle 27, which is

With the help of water jet pumps and compressed air conveyors, ren in a connection attached to a chute 29

a ring jet suction pump tube piece 28 opening out as a water jet pump. The chute 29 and the connec-

PE is provided, which housed in the drilling tool extension pipe section 28 are in turn on the rotor 3 or on

and by means of a pipeline over a guide tube 45, the tube holder 9 (Fig. 3) is attached, whereby the transport

is connected to a vortex, while the pulp is air-lifted from the bottom to the sedimentation basin

mixer is attached to the drill pipe column. The what- is shortened to the maximum. The connecting pipe piece 28

Jet pump ensures optimal loading (Fig. 2) contains a sealing element30.

the borehole is closed by the air-lift mixer. The guide tube 4 is in the lower part with a front

A drilling rig with a rotary rotor contains a grain direction 31 (FIG. 1) for the horizontal lengthening of the

pressor 1 (Fig. 1), a mud pump 2, a rotor 3, the drill pipe column 6 equipped with drill pipes. the

the guide tube 4 comprises, on the upper part of which a device 31 for the horizontal lengthening (FIG. 4)

Vertebra 5 is attached, which by hoses with the consists of two pipe sections 32,33, which are connected to each other

The compressor 1 and the flushing pump 2 are connected in communication by an articulated connection 34. the

stands. The vortex 5 is on the crown block of the system 55, the upper pipe section 32 is rigid with the guide pipe 4

suspended and connected via the guide tube 4 with the drilling, while the lower tube section 33 with the

tubular column 6 connected. Drilling column 6 is in communication. Inside the

A device 7 for the discharge of pipe sections 32, 33 is a movable connector 35 on the rotor 3

attached to the pulp. The drilling rig is installed with flexible tread, which has two positions during operation

fer includes a tube holder 9 (Fig. 3). 60 can take. In one position it couples both sec-

During drilling, the vertebra 5 moves together at functions 32,33, ensuring their rigid position

each piece of the drill pipe column from its top to each other and connects the drill pipe column 6 with

ren layer (Fig. 1) to the lower layer (Fig. 3). The guide tube 4. In the other position, it exits

is the device 7 for the derivation of the upper section 32 out, what a relative pivot

Pulp during drilling constantly above rotor 65 ken of sections 32, 33 around articulation 34

(F i g. 1) or above the pipe holder 9 (F i g. 3), so that the enables.

Pulp on the shortest route from the drill bed into the joint. The joint 34 is in the form of a joint-settling basin got. dungszapfens 36 executed, the eyelets of the sections

5 6

32, 33 connects. The movable nozzle 35 is by means of a manual control. The equipment of the

Springs 37 resiliently mounted. Hinge with swivel glands ensures one

The equipment of the system with a device 31 reliable supply of various detergents, such as

for horizontal lengthening, a uni- z. B. Compressed air and flushing fluid to the drill pipe column

stranded Applicability to drilling rigs with rotating 5 due to the hinges.

fer or flexible runner, while the well-known AnIa- The drilling rig described works follow with rotary runner only for a vertical piece and in a similar way: the one with the upper end with the willie Systems with flexible runners only for a horizontally connected at 5 and with the device 7 for the les attaching the drill pipe column are set up. Discharge of the pulp-provided guide tube 4 (Fig. 1)

Systems with a flexible rotor with a guide IO is incorporated into the rotor 3 in systems with a rotary rotor.

pipe makes the use more known depends. Attached to the lower part of the guide tube 4

Method of horizontal lengthening with the aid of a drilling tool 55, which was previously installed in rotor 3 (or

Articulated connection of the runner's drive spindle was suspended in the pipe holder 9).

the spindle of the vortex is impossible, as the installed Before drilling is carried out, a sedimentation basin 60 with rinsing

Section of the drill pipe with the guide pipe filled with liquid. For the start of the drilling will

a great length is marked, what a lifting previously under the drilling tool 55 creates a pit

and lead the guide tube to the section connected to the settling basin 60.

of the drill pipe over the pipe holder. After the installation of the device 7 for the

The horizontal lengthening of the drill pipe column guides the pulp over the rotor 3 (or the pipe neck

ensures a reduction in the unproductive time and 20 ter 9), their fixation with the help of fixing devices

Workload caused by moving the 22 aside and connecting the drain nozzle 27 via the

Guide tube with the eddies of the Bohrlochmün- connecting pipe piece 28 with the chute 29 is the

The rinsing pump 2 is switched on and the clearing of the flushing pump 2 placed above the rotor. The rinsing liquid arrives

NEN part of the system for lifting and vertical connection through the interior of the drill pipe column 6 and the

The length of the drill pipe column results in the reduction 25 telescopic nozzle 15 over the knee 19 through the

tion of the time and effort compared to the interior of the annular housing 10, the device

known systems is 10 to 15% of the total volume 7 for the discharge of the pulp, the drainage connection

wall, which accordingly increases the middle 27, the connecting pipe section 28 and the chute 29 in

Drilling speed of the system causes. the settling basin 60 and from there into the borehole.

The device for horizontal lengthening can be 30 after ensuring the reverse circulation of the the drive of the rotor 3 is introduced with an automatic switching device from flushing liquid (Fig. 5, 6). She shifts the shift with one, and one gear of the guide ring piston begins 39 equipped movable nozzle 38 tubular 4 continuous drilling process. The trained (F i g. 5) a. The upper pipe section 40 of the apparatus drilled rock in the form of mud along with it is in the upper part in the form of a cylinder with a 35 of the flushing liquid, the pulp, which is executed as a result of the reverse ring-shaped projection, which with the ring flushing through the drill pipe column 6, the device 7 Piston 39 and the movable connector 38 together for the discharge of the pulp, the connector 27, the Verbinacts and a pipe section 28 arranged below the annular piston 39 and the chute 29 in the kneading for settling forms annular piston chamber 41, which comes with a 60 ken. The drilling air pipeline settles in the settling basin 60 42 is in communication. 40 sludge as a residue, while the rinsing liquid

The movable nozzle 38 has means for entering the annulus of the borehole.
Springs 43 and a movable connecting sleeve 44 During the sinking of the borehole, the one moves up, which is placed on the movable nozzle 38 vortex 5 gradually from the upper to the lower position. When the connecting piece 38 is moved out of the, the guide tube 4 lowers itself into the upper position of the rotor 3 into the lower position, the connecting sleeve 45 (or the tube holder 9) passes over its entire length of the passage, and 44 into an inner cylindrical recess 45 of the lower position. the telescopic nozzle 15 is hermetically attached to its ren pipe section 46 and connects so rigidly the entire upper length pulled apart, where he the pulp with the lower pipe section 40,46, while the shaft through the knee 19 in the device 7 for the derivation of the movable Nozzle 38 forwards into an inner cylindrical pulp, which enters during the Bohrpro recess 47 and thus does not move the connection with 50 process, so that the pulp makes airtight as quickly as possible with the aid of sealing elements. Away from the bottom of the borehole into the settling basin 60

The hinges 48 (FIG. 6) of the device got with it.

Swirl glands 49 provided. The hinges 48 The operation of the guide tube 4 and the length are placed on supports 50 and can move relative to the longitudinal groove 14 are equal to the length of the telescopic supports 50, whereby in the supports 50 55 see connector 15 when all of its sections are apart 51 is formed, which are drawn through a nozzle and held in this position.
52 is connected to the air pipe 42. After drilling around one passage of the guide tube chambers 51, the air passes through the vortex plug 4, it is taken from the rotor 3 (or the tube holder 9) socket 49 and nozzle 53 to the air pipe 54, the drilling tool 55 is attached the surface (Fig. 5) of the drill pipe column 6. The connector 53 is rigidly raised 60 and held in the raised state,
attached to the vortex gland 49. The equipment The device 31 for the hinge 48 with vortex stuffing box 49 is attached to the guide tube 4, allowing the horizontal extension with drill pipes, the transmission of a torque to the drill pipe and with the help of this device the first drilling column 6 through the hinges 48 without Air loss pipe attached. For this purpose, the hinges 48, which can be tilted, are first used. 65 movable nozzle 35 (Fig. 4) from the upper pipe sec-

The automatic control of the device for the tion 32 solved with the help of hand levers, and after

Horizontal lengthening of the drill pipe column increases the lower pipe section 33 pivoted by 70-80 °.

the performance of the lengthening process and is avoided, the drill pipe is attached to it.

7th

In the variant with automatic control of the movable connector 38 (Fig. 5), the supply of Compressed air is switched on with the aid of a distributor tap 62 (FIG. 1) in the piston chamber 41 (FIG. 5), which turns the annular piston 39 moves and thereby the movable connector 38 with the connecting sleeve 44 in the upper position brings and the shaft of the movable connector 38 from the space of the cylindrical recess 47 and leads the sleeve 44 from the recess 45, whereby the upper pipe section 40 is detached from the lower section 46.

After attaching the new drill pipe to the lower pipe section 33 of the extension device 31, the guide tube 4 together with the extension device 31 and the drill tube over the rotor 3 (or the pipe holder 9) lifted. As soon as the extension device 31 (F i g. 4) the vertical position occupies, the movable connector 35 moves under the action of the spring 37 in the upper position and connects the pipe sections 32 and 33 rigidly to one another. In the variant with automatic control (Fig. 5) the compressed air supply into the piston chamber 41 is interrupted after the extension by a drill pipe, and the movable connector 38 moves under when the extension device is in a vertical position Action of the spring 43 arranged above the connecting sleeve 44 together with the connecting sleeve 44 into the lower position, in which the shaft of the movable connecting piece 38 engages in the cylindrical recess 47 and the connecting sleeve 44 in the recess 45, whereby the pipe sections 40, 46 of the extension device 31 are hermetically sealed from the outside and rigidly connected to one another. After this Drill to the length of a drill pipe and the extension device 31 is attached to a next drill pipe etc.

When using the device for the horizontal extension of the drill pipe column with automatic Control (Fig. 5) in conjunction with an air lift system, the compressed air is fed into the air pipeline 54 via the connecting piece 53 connected to the vortex stuffing box 49, the vortex stuffing box 49 is connected to the interior 51 of the support 50, which is connected to an air pipeline in Connection.

45 Here are 4 sheets of drawings

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55

60

65

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Claims (2)

1 2 Compressor (1) for releasing the movable Stut patent claims: zens (38) from the toothing with the other pipe section (46) when compressed air is fed into the 1. Rotary drilling rig for a drilling process with surrounding space (41) is connected, and that the movable Kehrflülung, which comprises a drill pipe column (6), 5 nozzles (38) a one with springs (43) equipped in the lower part with a drilling tool (55) direction for the return of the nozzle (38) in the and in the upper part via a guide tube (4) with teeth with the other tube section (46) a vortex (5) is connected to a flushing interruption of the compressed air supply in the piston pump (2) and a compressor (1) for the feed space (41). tion of a flushing fluid in the borehole and for 10 3. Rotary drilling rig according to claim 2, characterized gederen circulation, to a runner (3) for the over- denotes that on the outside of the movable nozzle carrying a torque on the Bohrrohrkolon- (38) a movable connecting sleeve (44) attached and connected to a device (7) for the discharge of which is connected to the return of the nozzle (38) and pulp into a chute (29), one of which is hollow, ring-shaped for making the connection with the other Housing (10) with an inner tube section (46) which has a window (11) which is equipped with springs (43) and which is rotatable on a rear device and on the movable connector (38) relative to the housing (10) ) mon- is assigned, which is in the other pipe section, in which opposite the window (11) of the Ge (46) a cylindrical recess (45) is carried out, the housing has a radial opening (13) and in which the lower End of the socket (44) when connected through which the guide tube (4) is passed through axially movably towards the tube sections (40, 46) with one another, the guide tube (4) being a guide tube.
Longitudinal groove (14), the length of which is greater than the length of the passage of the guide tube (4), and one inside having telescopic nozzle (15) with a End with the 25 directed towards the drill pipe column (6) The end of the guide tube (4) is connected and with The invention relates to rotary drilling rigs for drilling the interior of the drill pipe column (6) in connection with reverse flushing with a rotary or flexible dung stands, and the other end than knee (19) blen runner according to the German patent P 33 05 936. The is formed, the end of which by the longitudinal groove (14) invention is a separation from P 33 05 936. of the guide tube (4), in which the radial opening 30 tion (13) of the socket (12) is attached and the inner end, rotary drilling rigs with improved derivation of the space of the drill pipe column (6) with the interior space flowing back via the drill pipe string in the the device (7) for the discharge of the pulp area of the earth's surface according to the preamble of binds, which has a drain connection (27) to the effect with claim to improve that that too the chute (29) for discharging the pulp is simplified by extending the drill rod above ground binding, and where the length of the sections becomes. of the telescopic nozzle (15) apart. In known rotary drilling rigs, the extension of the drawn state of the nozzle (15) of the passage length of a drill pipe column is only vertical and is the same as a row of the guide pipe (4), thereby making auxiliary operations possible. The guide must indicate that the guide tube (4) has been taken out of the rotor in the guide tube, a device (31) is detached from the lower part of the drill rods and, together with the vortex, extends the drill pipe column vertically to the side in the form of and according to the length of the two to be connected, the drill pipe is articulated by an articulated connection (34). Then the drilling pipe sections (32, 33 pipe connected to each other) must be extended and finally the guide or 40, 46) must have, with one of the sections (32; 45 guide pipe with the vortex back to the extended 40) on the guide pipe (4) and the other section (33; drill rods connected and connected to the rotor 46) can be fastened to the drill pipe column (6) and are bound. All of this is labor and time consuming,
that in the interior of the sections (32, 33) between From DE-AS 27 20 758 is a riser strand for two positions movable nozzle (35) is arranged terwasserbohrungen with articulated pipe connections, which in one position in such a way in both pipe sec- 50 known. The pipe connections each only have in functions (32, 33 or 40, 46) that a one-level moveable joint is provided, which connects the drill pipe column (6) with the alternating rigid position of the sections and the connection in perpendicular planes which are easily accessible. The joints consist of approximately tube (4) through the socket (35, 38) through two opposing tubes on the tubes, and in the second position of 55 pivot pins with pivot bearings, one tube with the engagement with one of the sections so solved pivot pin and the pivot bearings and the other is that a pivoting of the sections (32,33 or 40, (connected to this tube) tube with articulated lugs 46) are provided relative to each other around the articulated connection (34),
is possible. From DE-AS 12 23 776 a drilling device is 2. Rotary drilling rig according to claim 1, characterized in 60 known, which has two elevators, the one at one indicates that on the movable connector (38) lift mounted rotary drive for receiving new an annular piston (39) is rigidly attached, which can be pivoted through 90 ° along drill pipes and the other the inner surface of the one pipe section (40) sliding elevator means for an independent lowering of the is guided, with a ring drill string and a coupling and decoupling device on the pipe section (40) shaped projection is carried out, which has an annular 65 for drill pipe pieces. shaped, located under the annular piston (39) The object on which the invention is based is Piston space (41) limited, which is connected to a pipe line by a rotary drilling rig with the features according to device (42) for connection via the vertebra (5) to the characterizing part of claim 1 solved.