CN201013231Y - Rat-hole drilling driving device for petroleum well drilling - Google Patents

Abstract

The utility model relates to an auxiliary facility for petroleum drilling process, and is a mouse hole drilling actuating device used for petroleum drilling. The utility model comprises a power take-off assembly, chains and a transmission assembly. The power take-off assembly consists of a square tile of a turntable, a square core arranged in the square tile, a connection seat permanently connected with the square core and a driving sprocket connected with the connection seat. The transmission assembly is permanently connected with a tubular bed arranged on a rig floor level at an angle of three through eight degrees. A rotary seat is enclosed on the tubular bed, and can rotate relative to the bed. A driven sprocket is connected with the rotary seat through bolts. A square drill stem driving disc is a split structure with a square hole in the center. The rotary bed is provided with an oil nozzle and a lubrication oil tank. The rotary bed is connected with the driven sprocket through bolts; the chain is connected with the driving sprocket and the driven sprocket to form chain transmission. The utility model makes use of power of the drill turntable to drive the actuating device for drilling mouse holes. Power is taken off from the square tile of the turntable. The utility model is installed conveniently, the driving moment is large; the operation efficiency is high; no manpower is required for assistance. The utility model is applicable for drilling large and small mouse holes in soft and hard stratum.

Description

The rat hole that is used for oil drilling creeps into drive unit

Technical field

The utility model relates to the supporting facility of oil drilling technology, and particularly a kind of rat hole that is used for oil drilling creeps into drive unit.

Background technology

In the drilling technology, before drilling well, to it be 3～8 ° in the next door of pithead position subdrilling gradient, be 7～8m deeply, the large and small rat hole of diameter 350mm, be respectively applied for to deposit kelly bar when making a trip and creep into and deposit drilling rod when making up a joint, the lower end of kelly bar, single drilling rod is placed on respectively in the large and small rat hole, and the upper end is positioned at the hole of rig floor face.In the known technology, the method for rat holing has two kinds: (1) hydraulic percussion method: promptly the high-pressure slurry that pumps with slush pump passes through kelly bar drill bit erosion soil layer, manually rotates kelly bar with chain wrench simultaneously, and this method is suitable for the weak soil face.(2) turbodrill method: promptly the high-pressure slurry by slush pump drives the turbodrill rotation, drives the drill bit rotation simultaneously.When adopting this method operation, must manually be entangled on the turbine shell simultaneously with two coir ropes or on the kelly bar, bear reaction torque and the guiding of holing, this method be suitable for the pan soil face.Two kinds of methods all must be with artificial auxiliary, and efficient is low.The first method shortcoming is that the water erosion area is wayward, easily causes ground collapse.Second method is absolutely unsafe.

Summary of the invention

The purpose of this utility model provides a kind of rat hole that is used for oil drilling and creeps into drive unit, and this device adopts the mechanization mode, does not need artificial auxiliary operation, and is safe and efficient.

Realize that the technical scheme that the utility model purpose is taked is: a kind of rat hole that is used for oil drilling creeps into drive unit, it is characterized in that: comprise power taking assembly, chain, drive assembly, described power taking assembly is made of quadrel, Fang Xin, Connection Block, the drive sprocket of rotating disk, Fang Xin is installed in the quadrel, fixedly connected with the Fang Xin upper end in the lower end of Connection Block, the upper end of Connection Block has adpting flange, and drive sprocket is connected with bolt with the adpting flange of Connection Block; Described drive assembly is made of base, rotating seat, driven sprocket, kelly bar driving-disc, base is tubular and tilts 3～8 ° to be fixedly connected on the rig floor table top, rotating seat cover is contained on the base and can rotates with respect to base, oil nozzle is installed on the rotating seat, and the interior friction circle cylinder upper edge circumference that rotating seat matches with base is furnished with oil-way; Driven sprocket is connected with bolt with rotating seat, and the kelly bar driving-disc is that the two halves that the center has a square hole divide body structure, and the kelly bar driving-disc is positioned at the driven sprocket upper end and is connected with bolt with driven sprocket; Described chain connects drive sprocket and driven sprocket constitutes chain drive.

Described power taking assembly also comprises pressing plate, axial pull bar, and pressing plate is positioned at the bellmouth of quadrel lower end, and axially pull bar is connected between pressing plate and the drive sprocket, and its lower end and pressing plate are hinged, and the upper end is connected with bolt with drive sprocket.

The utility model utilizes the power of Rotary table for drilling machine to creep into the power of drive unit as rat hole, quadrel power taking from rotating disk, rotatablely moving of quadrel passed to drive sprocket by Fang Xin, Connection Block, drive the driven sprocket rotation by chain again, driven sprocket drives connected kelly bar driving-disc rotation, the cubic hole of kelly bar driving-disc is used to install kelly bar, and the rotation of kelly bar driving-disc drives kelly bar and finishes rotary operation.Whole drive unit is easy for installation, and driving moment is big, and the operating efficiency height does not need artificial assisting in the operation, and big mouse hole spuds on suitable soft or hard stratum.

Description of drawings

Fig. 1 is the utility model structural representation.

The specific embodiment

Below in conjunction with the specific embodiment and accompanying drawing the utility model is further described.

The power that the utility model utilizes Rotary table for drilling machine bores the driving power of large and small rat hole before as drilling well, particularly, with the driving member quadrel of rotating disk as the power taking of power taking mouth.Rotating disk is one of important corollary equipment of rig, is the angle gearing speed-reducer of a special construction, and the driving mechanism that drives the quadrel rotation belongs to the structure of known technology rotating disk, does not add description here.

As shown in Figure 1, the rat hole that is used for oil drilling creeps into drive unit by the power taking assembly, chain 7, drive assembly constitutes, the power taking assembly comprises quadrel 1, side's core 2, Connection Block 3, drive sprocket 4, pressing plate 5, axial pull bar 6, side's core 2 is installed in the quadrel 1, Connection Block 3 has the tubular construction of adpting flange for the upper end, the lower end of Connection Block 3 and the welding of square core 2 upper ends, drive sprocket 4 is connected with bolt with the adpting flange of Connection Block 3, pressing plate 5 is positioned at the bellmouth of quadrel 1 lower end, axially pull bar 6 is connected between pressing plate 5 and the drive sprocket 4, its lower end and pressing plate 5 are hinged, and the upper end is connected with drive sprocket 4 usefulness bolts.Drive assembly comprises driven sprocket 8, kelly bar driving-disc 9, base 10, rotating seat 11, kelly bar driving-disc 9 divides body structure for the two halves that the center has cubic hole, base 10, rotating seat 11 is tubular structure, there is a shoulder at base 10 cylindricals middle part, rotating seat 11 is sleeved on the base 10, shoulder on the base 10 is to its axial support, rotating seat 11 relative bases 10 turn, oil nozzle 12 is installed on the rotating seat 11, the interior friction circle cylinder upper edge circumference that matches with base 10 of rotating seat 11 is furnished with some roads oil-way, base 10 upper end surfaces are equipped with the cover plate 13 that limits rotating disc 11 axial motions, base 10 tilts 3～8 ° and is fixedly connected on the rig floor 14, kelly bar driving-disc 9, rotating seat 11 lay respectively at driven sprocket 8 on, the lower surface is connected with driven sprocket 8 usefulness bolts, and chain 7 is connected between drive sprocket 4 and the driven sprocket 8 and constitutes chain drive.

Transmission principle: from the quadrel power taking of rotating disk, rotatablely moving of quadrel passed to the drive sprocket of installing with axle horizontal by Fang Xin, Connection Block, drive the driven sprocket rotation that slight inclination is installed by chain again, the driven sprocket rotation drives and is positioned at the kelly bar driving-disc rotation that its upper surface is connected with bolt, the cubic hole of kelly bar driving-disc is used to install kelly bar, finishes rotary operation thereby drive kelly bar by the rotation of kelly bar driving-disc.The kelly bar driving-disc not only drives kelly bar, but also the other side's rod boring play the guiding role.Because the driven sprocket rotating speed is lower, about 20r/min, so driven sprocket slightly tilts and can not influence the normal transmission of chain during the pine installation at chain.Because the bit diameter that kelly bar connects greater than the cubic hole size dimension of kelly bar driving-disc,, is designed to two halves with the kelly bar driving-disc and divides body structure by the kelly bar driving-disc for ease of drill bit.

Claims (2)

1. a rat hole that is used for oil drilling creeps into drive unit, it is characterized in that: comprise power taking assembly, chain (7), drive assembly, described power taking assembly is made of quadrel (1), Fang Xin (2), Connection Block (3), the drive sprocket (4) of rotating disk, Fang Xin (2) is installed in the quadrel (1), fixedly connected with Fang Xin (2) upper end in the lower end of Connection Block (3), the upper end of Connection Block (3) has adpting flange, and drive sprocket (4) is connected with bolt with the adpting flange of Connection Block (3); Described drive assembly is made of base (10), rotating seat (11), driven sprocket (8), kelly bar driving-disc (9), base (10) is tubular and tilts 3～8 ° to be fixedly connected on rig floor (14) table top, rotating seat (11) is sleeved on the base (10) and can rotates with respect to base (10), oil nozzle (12) is installed on the rotating seat (11), and the interior friction circle cylinder upper edge circumference that rotating seat (11) matches with base (10) is furnished with oil-way; Driven sprocket (8) is connected with bolt with rotating seat (11), and kelly bar driving-disc (9) divides body structure for the two halves that the center has square hole, and kelly bar driving-disc (9) is positioned at driven sprocket (8) upper end and is connected with bolt with driven sprocket (8); Described chain (7) connects drive sprocket (4) and driven sprocket (8) constitutes chain drive.

2. the rat hole that is used for oil drilling according to claim 1 creeps into drive unit, it is characterized in that: described power taking assembly also comprises pressing plate (5), axial pull bar (6), pressing plate (5) is positioned at the bellmouth of quadrel (1) lower end, axially pull bar (6) is connected between pressing plate (5) and the drive sprocket (4), its lower end and pressing plate (5) are hinged, and the upper end is connected with bolt with drive sprocket (4).