37results about How to "Rock breaking speed" patented technology

The invention discloses an ultrasonic vibration cord coring drill tool. The ultrasonic vibration cord coring drill tool is characterized in that power can be supplied to a piezoelectric ceramic vibrator by a battery of the ultrasonic vibration cord coring drill tool, high-frequency voltages with different frequencies can be provided, and accordingly the piezoelectric ceramic vibrator can be excited to ultrasonically vibrate; generated ultrasonic vibration is transmitted to rock via an outer tube and a drill bit, and resonance breaking can be carried out on the rock; single-action characteristics of rock core tubes are kept among the battery, the piezoelectric ceramic vibrator and a solid shaft by the aid of bearings. The ultrasonic vibration cord coring drill tool has the advantages that the ultrasonic vibration cord coring drill tool is convenient to replace, the application range of ultrasonic drilling can be greatly expanded, the drilling periods can be shortened, and the cord coring drilling speeds can be increased.

The invention relates to a downhole self-priming particle jet drilling device based on the Venturi effect. The lower joint, the upper end of the liquid inlet chamber is threadedly connected with the upper joint, the inner cavity of the upper joint is composed of a horn section and a nozzle section, the outer part of the upper joint corresponding to the nozzle section is a reduced diameter section, the nozzle section is an equal diameter section, and the nozzle and the nozzle section are threadedly connected , the nozzle and the nozzle section extend into the liquid inlet chamber, the upper channel of the nozzle is a horn channel, the lower channel is a cylindrical channel, and the liquid inlet chamber has a liquid inlet hole; The throat pipe is arranged on a coaxial line, and the lower end of the diffusion pipe is connected with the lower joint. The invention can take the cuttings sucked from the annular space as impact particles, greatly improve the mechanical drilling speed, is suitable for the deep hard formation, and can effectively improve the rock breaking speed.

The invention discloses a hybrid bit for petroleum gas exploitation and other exploration drilling applications, wherein cones and blades are simultaneously arranged on a bit main body and are uniformly distributed in a staggering manner, and the cones are arranged on a tooth palm of the bit main body; the hybrid bit further comprises a movable blade body movably arranged in the bit main body and only capable of telescopically moving within a limited range along an axial direction, an elastic element for providing axial force for the movable blade body is also arranged between the movable blade body and the bit main body, the blades are arranged at the front end of the movable blade body, and a compression face for bearing mud pressure is arranged at the tail end of the movable blade body. The self-adapting hybrid bit disclosed by the invention is capable of controlling the relative positions of the cones and the blades in a self-adapting manner according to stress, thereby optimizing the rock breaking quantity distribution of the cones and the blades and guaranteeing a faster rock breaking speed, and the applicability is more extensive. Besides, by the self-adapting design, the rigid impact of common bits and rock stratum is optimized to flexible impact, so that the bit is greatly protected.

The invention belongs to the field of building construction and particularly relates to a single-waist multi-leaf hose bit for a bored pile and a drilling construction method thereof. The technological process comprises the steps of positioning and sampling, centering in position, forming a hole, clearing the hole for the first time, descending a reinforcement cage, descending a guide pipe, clearing the hole for the second time and pouring concrete. The single-waist multi-leaf hose bit for the bored pile comprises a single-waist multi-leaf taper bit body. A positioning and guiding cylinder is fixedly welded to the end of the single-waist multi-leaf taper bit body. A plurality of positioning and guiding cylinder tungsten steel heads are distributed on a circumferential edge opening of one end of the positioning and guiding cylinder. The single-waist multi-leaf hose bit of the bored pile and the drilling construction method thereof have the advantages that the directivity is good, the hole forming perpendicularity is high, the wall protecting effect is good, deslagging is convenient, the hole forming speed is high, and the rock breaking speed is high.

The invention discloses a jet type twisting resistance reduction oscillator and relates to the technical field of drilling technologies. An impactor comprises an upper connector, an outer cylinder, an upper end cover, a bi-stable jet element, an alternating pressure passageway, a torque cylinder, a torque piston, bearings, clamping blocks and a drill sleeve. The upper end cover, the bi-stable jet element, the alternating pressure passageway, the torque cylinder, the torque piston and the bearings are sequentially arranged inside the outer cylinder. The upper end of the outer cylinder is in threaded connection with the upper connector, and the lower end of the outer cylinder is connected with the drill sleeve through the clamping blocks. Through the corresponding structural design, the service life of a drill bit can be prolonged, and the rock breaking efficiency of the PDC drill bit can be improved.

The invention discloses a self-propelled intermittent pulse high-pressure spray head for a radial horizontal well. The spray head is provided with a shell which is connected with a concave-type drainage plate through a thread, a spherical groove is formed in the inner wall of the shell, and the two ends of a horizontal shaft are provided with wear-resistant steel balls which are clamped in the spherical groove formed in the inner wall of the shell respectively; an overturning plate is arranged to be hollowed, and the horizontal shaft penetrates through the center. The concave-type drainage plate has a drainage effect and drives the overturning plate to conduct periodic rotation, and the drilling and rock breaking efficiency is improved; high-pressure drilling fluid forms an eddy current under the stirring action of the overturning plate, and the rock breaking speed is increased; along with rotation of the overturning plate, the drilling fluid below the drainage baffle produces an excited oscillation effect, and the energy of the fluid at the outlet of spray nozzles is increased; the groove is formed in the upper portion of the concave-type drainage plate, and the self-propelling capacity of the spray head is improved; the overturning plate adopts a mode that the mass is distributed nonuniformly, when the overturning plate rotates, the spray head is driven to jump continuously, and therefore the friction force between the spray head and a stratum is reduced, and the self-propelling capacity of the spray head is improved.

The invention relates to a radial sidetrack drilling rotating self-propelled porous jet flow drill bit, which mainly comprises a casing, a rotating drill bit body, a gear type slide ring type combined seal, an opening sealing screw, steel balls and the like, wherein a water inlet is processed at the tail end of the casing; a backward spray nozzle is processed on the casing; a forward spray nozzle and a center spray nozzle are processed on the rotating drill bit body; semicircular grooves are respectively processed in the casing and the rotating drill bit body; the steel balls are placed in the grooves formed between the casing and the rotating drill bit body; the rotating drill bit body is positioned through the steel balls and can rotate around the self axial line; the gear type slide ring type combined seal is adopted between the rotating drill bit body and the casing; through holes are formed at the lateral side of the casing; the steel balls are placed into the grooves through the through holes; and after the steel balls are placed into the grooves, the through holes are sealed through the opening sealing screws. The radial sidetrack drilling rotating self-propelled porous jet flow drill bit can effectively solve the problems of poor jet flow drill bit reaming capability, poor rock breaking hole smooth roundness, bent tracks of hydraulic jet hoses and the like of the hydraulic jet radial sidetrack drilling tiny drill hole technology, and can be widely applied to the hydraulic jet radial horizontal well technology.