CN104234623A - Connecting rod-free drilling head - Google Patents

Abstract

The invention relates to a connecting rod-free drilling head, which mainly comprises a drill bit, two electric motors, a propeller, a rotating shaft, a detection equipment box and a sling, wherein the drill bit is directly driven at high speed by the large electric motor to downward drill to produce powder; the propeller is driven by the small electric motor to rotate at high speed, and downward thrust is generated to drive the drill bit on the lower part to downwards and movably drill in a way that the powder is taken as a medium; a sleeve sleeving the rotating shaft is arranged on the detection equipment box; the sling is connected to the detection equipment box in a lifting way. According to the connecting rod-free drilling head, a heap of connecting rods are replaced by the sling and a conductor wire, so that the drilling depth and speed are increased.

Description

A kind of without extension bar drilling well head

Technical field

The present invention relates to a kind of drilling well head, particularly a kind of deep layer drilling bit without extension bar, belongs to drilling technique field.

Background technology

At drilling field, such as, bore deep layer well, the degree of depth of some places underground water source is more than one kilometer, and these are local main in the area that lofty mountains and steep hills or highlands, and the difficulty that the drilling well in these areas obtains water source is larger; More such as drill for oil field, and the degree of depth of probing is crossed darker, and several kilometers that have even dozens of kilometres, it is unreachable that so far-reaching probing makes people think, generally only has the country of some advanced technologies can reach probing layer like this local.

General boring method is all take Surface power drive to drill method: namely Power Drive Unit is in ground, power set connect connecting rod, then drill bit is connected with connecting rod, be exactly that power set drive drill bit drilling well by connecting rod like this, in the process of drilling well, in order to constantly the degree of depth can be deepened, be spaced a distance and will stop adjunction connecting rod, be so very the speed of trouble and probing be very slow, and in the deep prospecting of the too degree of depth, after the connecting rod that adjunction is too much, overall length is long, the driving force of connecting rod and attachment force are very fragile, be easy to the phenomenon twisting off connecting rod, this just there occurs the failure of drilling well.

Summary of the invention

In order to overcome the general shortcoming connecting rod-type boring method, in order to the success rate of drilling well is larger, in order to can darker stratum be drilled, my invention is a kind of without extension bar drilling well head, it does not need connecting rod, only needs a lifting rope, and is connected conductor wire, drill bit can carry the autonomous dive of detecting devices and get in very dark stratum, or creates better condition for next step the probing of connecting rod that has.

A kind of technical scheme taked without extension bar drilling well head technical solution problem is: a kind of without extension bar drilling well head primarily of drill bit, large electro-motor, little electro-motor, propeller, rotating shaft, detecting devices case, lifting rope formation, drill bit at forefront by the direct Driven by Coaxial of large electro-motor, little electro-motor immediately large electro-motor Driven by Coaxial one spiral Kaplan, detecting devices case is by female connector cylinder connection rotating shaft and lifting rope.

Bore a ground action downwards without extension bar drilling well head at high speed by the direct Driven by Coaxial of large electro-motor, produce the effect destroying obstruction above, create for whole the condition moved downward without extension bar drilling well head.Because the high-speed rotation of drill bit bores dynamic action, the competent bed running into drill bit can be broken into powder by rotation and squeeze backward and go.Constantly increased by the powder that drill bit is rotated into, these powder become the obstacle hindering drill bit dive, and the gravity deficiency of whole bit body continues dive to make drill bit.In order to address this problem, we install additional on drill bit top and connect another little electro-motor, this electro-motor drives a propeller again, screw makes medium with those powder, rotate the downward pushing force of generation and whole drilling apparatus is continued pushing downwards, constantly advance downwards so drill bit can continue again to bore to move.Due to center in the driving shaft of driving screw, and constantly rotate, we are connected with detecting devices case with a sleeve, make the rotation of rotating shaft not affect the steady operation of equipment box, and it equipment box is also very stable that lifting rope ties up to.

A kind of beneficial effect without extension bar drilling well head is: one works without extension bar drilling well head two motors simultaneously, a motor drives drilling bit high-speed to bore stratum downwards and produces powder pusher, and another motor drives a screw to be rotated down the whole device of promotion with powder as medium constantly can drill advance downwards; Only to be used as power an energy with the power supply that conductor wire connects ground without extension bar drilling well head, eliminate a lot of connecting rod and be used as power and connect the shortcoming in source, drilling well is quick, drilling well is darker.

Accompanying drawing explanation

Fig. 1 is a kind of structural principle side view without extension bar drilling well head.

In figure, 1. lifting rope, 2. detecting devices case, 3. screw, 4. rotating shaft, 5. conductor wire, 6. sleeve, 7. fractional motor, 8. drill bit auger spindle, 6. large motor, 10. drill bit.

Detailed description of the invention

Below in conjunction with accompanying drawing, without extension bar drilling well head, further implementation is done to one.

Figure is a kind of structural principle side view without extension bar drilling well head, and whole in figure is drilled downward vertically without an extension bar drilling well microscler shape.Device foot in figure be drill bit (10), this drill bit (10) is born the responsibility the important task of fighting in the van, and preceding for any stop competent bed High Rotation Speed is turned into powder and pushes backward.And then drill bit (10) in figure be large motor (6), by drill bit rotating shaft (8) drive drill bit (10).And then large motor (9) top is fractional motor (7), the rotating shaft (4) of fractional motor (7) drives one, top screw (3), propeller (3) relies on the powder produced above and carries out rotation at a high speed as medium, downward generation thrust, for the drill bit (10) of bottom can to more deep layer propelling.Rotating shaft (4) in figure is packed in a small sleeve (6), and sleeve (6) welds detecting devices case (2) again, and lifting rope (1) is hanging connected in again detecting devices case (2) top.Also show in figure that the shared conductor wire (5) of two motors is followed lifting rope (1) and stretched out to place, for two motors of bottom provide powerful operating power.

Claims (1)

1. one kind without extension bar drilling well head, it is characterized in that: one is formed primarily of drill bit, large electro-motor, little electro-motor, screw, rotating shaft, detecting devices case, lifting rope without extension bar drilling well head, drill bit at forefront by the direct Driven by Coaxial of large electro-motor, little electro-motor immediately large electro-motor Driven by Coaxial screw, detecting devices case is by sleeve connection rotating shaft and lifting rope.