CN106968612B - Circumferential damping tool and method - Google Patents
Circumferential damping tool and method Download PDFInfo
- Publication number
- CN106968612B CN106968612B CN201710129684.9A CN201710129684A CN106968612B CN 106968612 B CN106968612 B CN 106968612B CN 201710129684 A CN201710129684 A CN 201710129684A CN 106968612 B CN106968612 B CN 106968612B
- Authority
- CN
- China
- Prior art keywords
- reciprocating
- vibration
- circumferential
- cylinder
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The invention discloses a circumferential shock-absorbing tool and a method, wherein the tool comprises: the vibration monitoring system is electrically connected with the power supply system; the vibration monitoring system comprises a vibration measuring sensor and a monitoring processing unit; the circumferential damping execution system comprises a first shell and a reciprocating mechanism arranged in the first shell, wherein the mechanism comprises a reciprocating impact hammer and a reciprocating cylinder sleeved outside the reciprocating impact hammer; the reciprocating impact hammer is characterized in that an isolated reciprocating cavity is formed between the reciprocating impact hammer and the reciprocating cylinder, a liquid inlet through hole is formed in the reciprocating impact hammer, a first liquid discharge port is formed in the reciprocating cylinder, a second liquid discharge port and a drill bit joint which can be communicated with the first liquid discharge port are formed in the first shell, the inner side of the upper end of the first shell is connected with the reciprocating cylinder, and the outer side of the first shell is connected with the first shell through a force transmission mechanism. The circumferential damping tool and the circumferential damping method provided by the invention can reduce the stick-slip vibration of the drilling tool in the circumferential direction.
Description
Technical Field
The invention relates to the field of matching devices for petroleum and natural gas drilling, in particular to a circumferential damping tool and a method.
Background
During drilling, the vibration of the drill string mainly comprises: transverse vibration, longitudinal vibration and torsional vibration, and coupled vibration of the three vibrations. When a drill encounters a stratum with higher hardness, the drilling tool is easy to generate circumferential vibration, the cutting teeth of a PDC (Polycrystalline Diamond Compact bit Polycrystalline Diamond Compact) drill bit are damaged, the using effect of the drill bit is influenced, and the service life of the drill bit is shortened.
Generally, in the normal drilling process, the PDC drill bit continuously eats into the rock under the action of the bit weight, and the rock is continuously sheared and crushed by the torsion provided by the drill string. When the hardness of stratum rock is high or the drill bit cuts into the stratum too deeply, and the torque at the cutting blade of the drill bit is not enough to break the rock, the drill bit can stop rotating temporarily, and the earth surface drilling disk can rotate continuously at the moment, and the upper drill rod and the lower drill rod have different rotating speeds. Due to the rigidity of the drill pipe, the drill pipe begins to accumulate torque energy. When the torque energy accumulated by the drill rod is larger than the rock breaking energy of the drill bit, the drill bit breaks the rock, the torque energy on the drill string is suddenly released, and the drill bit rotates at a high speed. When the rotation speed of the drill string is reduced to be below a critical value of static friction action, the rotation is stopped, and the phenomenon of sticking-sliding is the phenomenon of stick-sliding vibration, wherein the duration period of the phenomenon is about 1-40 s (seconds). Since the stick-slip vibration process is also a process of energy accumulation and release, the torque fluctuation in the stick-slip vibration process is large, which not only seriously affects the drilling efficiency, but also threatens the drilling safety. For example, when the actual torque is too great, even exceeding the torque limit that the equipment can withstand, drilling may be rendered impossible. In order to ensure that drilling can be performed continuously and stably, it is necessary to provide a circumferential damping tool to eliminate the above-mentioned circumferential stick-slip vibration.
Existing circumferential dampening tools are typically formed from a combination of a disc spring and a multi-start thread pair. When the tool is used, the self-locking easily occurs when the multi-thread pair is used for a long time, so that the tool fails, and the field application effect is seriously influenced.
Therefore, a new circumferential damping tool is needed to be provided to reduce stick-slip vibration of the drilling tool in the circumferential direction, and achieve the functions of protecting the drilling tool and assisting in improving the rock breaking efficiency of the drill bit.
Disclosure of Invention
The invention aims to provide a circumferential damping tool and a circumferential damping method, which are used for reducing the circumferential stick-slip vibration of a drilling tool, realizing the functions of protecting the drilling tool and assisting in improving the rock breaking efficiency of a drill bit.
The above object of the present invention can be achieved by the following technical solutions:
a circumferential dampening tool, comprising:
the vibration monitoring system is electrically connected with the power supply system;
the vibration monitoring system comprises a vibration measuring sensor and a monitoring processing unit;
the circumferential damping execution system comprises a first shell and a reciprocating mechanism arranged in the first shell, wherein the mechanism comprises a reciprocating impact hammer and a reciprocating cylinder sleeved outside the reciprocating impact hammer;
a separated reciprocating cavity is formed between the reciprocating impact hammer and the reciprocating cylinder, and a liquid inlet through hole is formed in the reciprocating impact hammer and can be communicated with the reciprocating cavity to form a liquid inlet channel;
the reciprocating cylinder is provided with a first liquid discharge port, the first shell is provided with a second liquid discharge port which can be communicated with the first liquid discharge port, and the reciprocating cavity can be sequentially communicated with the first liquid discharge port and the second liquid discharge port to form a liquid outlet channel;
when the monitoring processing unit controls the power supply system to supply power to the circumferential damping execution system according to the vibration signal acquired by the vibration measurement sensor, the liquid inlet channel and the liquid outlet channel are communicated with the reciprocating mechanism, and the reciprocating impact hammer and the reciprocating cylinder can perform circumferential reciprocating rotation;
the drill bit joint is used for being connected with a drill bit, the inner side of the upper end of the drill bit joint is connected with the reciprocating cylinder, and the outer side of the drill bit joint is connected with the first shell through a force transmission mechanism.
In a preferred embodiment, the force transfer mechanism is a mating spline and keyway mechanism.
In a preferred embodiment, the number of the first drain ports is an even number,
the first shell is a hollow cylinder, and an annular liquid discharge groove communicated with the first liquid discharge port is formed in the inner wall of the first shell.
In a preferred embodiment, the circumferential shock absorbing actuator system further comprises:
the first electromagnetic sealing block is used for controlling the opening and closing of a liquid inlet through hole arranged on the reciprocating impact hammer;
the second electromagnetic sealing block is used for controlling the opening and closing of the first liquid discharging port;
the first longitudinal pressure spring is matched with the first electromagnetic sealing block;
the second longitudinal pressure spring is matched with the second electromagnetic sealing block;
the first electromagnetic sealing block and the second electromagnetic sealing block are respectively and electrically connected with the monitoring processing unit;
the liquid inlet through holes and the first liquid discharge ports are the same in number and are even in number, and the first electromagnetic sealing block alternately controls half of the liquid inlet through holes to be opened and the other half of the liquid inlet through holes to be closed; and the second electromagnetic sealing block alternately controls half of the first liquid discharge port to be opened and the other half of the first liquid discharge port to be closed.
In a preferred embodiment, the shuttle cylinder is a hollow cylinder of varying diameter, with the upper portion having a larger diameter dimension than the lower portion; the section of an inner hole at the upper part of the reciprocating motion cylinder forms two symmetrical fan-shaped spaces by four sections of circular arcs and four straight line sections, and the inner diameter of the lower part of the reciprocating motion cylinder is smaller than or equal to the diameter of the circular arc with smaller diameter in the four sections of circular arcs;
the reciprocating impact hammer is a hollow cylinder, the outline of the outer side of the lower part of the reciprocating impact hammer is formed by four sections of circular arcs and four straight line sections into two symmetrical fan-shaped bulges,
the sector arc angle of the protrusion of the reciprocating impact hammer is smaller than the arc angle of the sector space of the reciprocating motion cylinder.
In a preferred embodiment, the circumferential shock absorbing actuator system further comprises:
and the sheath is arranged at the upper end of the reciprocating impact hammer, is cylindrical and is used for positioning the first longitudinal pressure spring and the first electromagnetic sealing block.
In a preferred embodiment, a second electromagnetic sealing block clamping groove for mounting a low-pressure liquid discharge port and a second longitudinal pressure spring is formed in the outer side wall of the reciprocating cylinder.
In a preferred embodiment, the circumferential shock absorbing actuator system further comprises: the sealing cover is arranged at the upper end of the reciprocating cylinder, sleeved outside the reciprocating impact hammer and used for forming a sealed annular cavity between the reciprocating cylinder and the reciprocating impact hammer.
In a preferred embodiment, the power supply system includes: the second casing, set up in battery chamber in the second casing, sealed setting are in battery intracavity battery and with battery electric connection's supply cable, wherein, power supply system still is provided with the discharge orifice that is used for circulating drilling fluid.
In a preferred embodiment, the inner side of the upper end of the second shell is provided with an internal thread for connecting with an upper drilling tool, the outer side of the lower end of the second shell is provided with an external thread for connecting with a vibration monitoring system, and the inner part of the second shell is provided with a limiting step for limiting the battery cavity.
In a preferred embodiment, the flow opening is arranged on the battery chamber or on the second housing or is formed by a gap between the battery chamber and the second housing.
In a preferred embodiment, the upper end and the lower end of the battery cavity are provided with flange rings, and the overflowing holes are arranged on the flange rings; the flange ring is abutted against the limiting step, and the flange ring is in clearance fit with the second shell.
In a preferred embodiment, the vibration monitoring system comprises: the vibration measuring sensor and the monitoring processing unit are electrically connected and are powered by the power supply system.
In a preferred embodiment, the third housing has an outer wall provided with: the device comprises a first groove and a sensor sealing gland matched with the first groove, and a second groove and a monitoring processing unit sealing gland matched with the second groove;
the vibration measuring sensor is arranged in the first groove and is sealed through the sensor sealing gland; the monitoring processing unit is arranged in the second groove and sealed through the monitoring processing unit sealing gland.
A circumferential dampening method, comprising:
acquiring vibration data of the drilling tool through a vibration measuring mechanism;
comparing the acquired drilling tool vibration data with a preset vibration threshold;
and when the drilling tool vibration data are larger than the preset vibration threshold value, starting a circumferential damping execution system.
In a preferred embodiment, the method further comprises:
and when the drilling tool vibration data are smaller than the preset vibration threshold value, continuously executing the step of obtaining the drilling tool vibration data and comparing the drilling tool vibration data with the data by the vibration measuring mechanism.
The invention has the characteristics and advantages that: the application provides a circumference shock attenuation instrument is the circumference shock attenuation instrument of closed loop monitoring, analysis, judgement, control integration in the pit, can improve the broken rock efficiency of drill bit, protection drilling tool. Specifically, this circumference shock attenuation instrument can gather in real time, the analysis, judge the circumference vibration condition in the pit, as the control processing unit basis vibration signal control that vibration measurement sensor acquireed electric power supply system to during the power supply of circumference shock attenuation actuating system, inlet channel, drain pan with reciprocating motion mechanism is linked together, to come and go the jump bit, come and go the motion cylinder and can make circumference to come and go the rotation to with this come and go the rotation and pass bit joint and transmit for the drill bit, the round trip motion of drill bit can alleviate drill bit drilling tool circumference slimy vibration effectively, improves the broken rock efficiency of drill bit, protects the drill bit.
Drawings
FIG. 1 is a schematic structural view of a circumferential damping tool according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of a circumferential dampening tool in an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a first housing of a circumferential dampening tool of an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of a circumferential dampening tool shuttle cylinder in an embodiment of the present application;
FIG. 5 is a schematic cross-sectional view of a circumferential dampening tool shuttle hammer according to an embodiment of the present disclosure;
FIG. 6 is a cross-sectional view of a circumferential dampening tool A-A according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of a clockwise impact motion state of a circumferential damping execution system of a circumferential damping tool according to an embodiment of the present application;
FIG. 8 is a schematic diagram illustrating a state of a counterclockwise impact motion of a circumferential damping actuating system of a circumferential damping tool according to an embodiment of the present application;
FIG. 9 is a flow chart illustrating steps of circumferential damping in an embodiment of the present application.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and various equivalent modifications of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention provides a circumferential damping tool and a circumferential damping method, which are used for reducing the circumferential stick-slip vibration of a drilling tool, realizing the functions of protecting the drilling tool and assisting in improving the rock breaking efficiency of a drill bit.
Referring to fig. 1 to 6, in an embodiment of the present application, a circumferential damping tool is provided, which includes: the vibration monitoring system is electrically connected with the power supply system; the vibration monitoring system comprises a vibration measurement sensor 202 and a monitoring processing unit 205; the circumferential damping execution system comprises a first shell 301 and a reciprocating mechanism arranged in the first shell 301, wherein the mechanism comprises a reciprocating impact hammer 3011 and a reciprocating cylinder 305 sleeved outside the reciprocating impact hammer 3011; a reciprocating cavity 30502 isolated from each other is formed between the reciprocating impact hammer 3011 and the reciprocating cylinder 305, a liquid inlet through hole is formed in the reciprocating impact hammer 3011, and the liquid inlet through hole 307 can be communicated with the reciprocating cavity 30502 to form a liquid inlet channel; the reciprocating cylinder 305 is provided with a first liquid discharge port 309, the first shell 301 is provided with a second liquid discharge port 3010 capable of being communicated with the first liquid discharge port 309, and the reciprocating cavity 30502 can be sequentially communicated with the first liquid discharge port 309 and the second liquid discharge port 3010 to form a liquid outlet channel; when the monitoring processing unit 205 controls the power supply system to supply power to the circumferential damping execution system according to the vibration signal obtained by the vibration measurement sensor 202, the liquid inlet channel and the liquid outlet channel are communicated with the reciprocating mechanism, and the reciprocating impact hammer and the reciprocating cylinder 305 can perform circumferential reciprocating rotation; the first casing 301 has opposite upper and lower ends, and the lower end is connected with a bit connector 3012 through a force transmission mechanism, and the bit connector 3012 is used for connecting a bit to transmit torque generated by reciprocating rotation to the bit.
In this embodiment, the power supply system is used for providing power for the damping tool and ensuring that the tool is powered down downhole. For downhole tool power, common voltage specifications include: 12V and 36V. The power supply system may be powered by a battery, a turbine generator, or other forms of power supply, and the present application is not limited thereto.
Taking battery power as an example, the power supply system may include: a second housing 101, a battery chamber sealing cover 102, a battery chamber 103, a battery 105, a power outlet 106 with a seal, a power supply cable 107, wherein the power supply system is further provided with a flow hole 104 for circulating drilling fluid.
The power supply system outer casing 101 may be a hollow cylinder, and the hollow portion is a through hole. Specifically, the inner side of the upper end of the second casing 101 may be provided with an internal thread for connecting with an upper drilling tool, the outer side of the lower end may be provided with an external thread for connecting with a vibration monitoring system, and a limiting step for limiting the battery cavity 103 is provided inside the second casing.
The flow-through hole 104 is used for flowing drilling fluid, specifically, the flow-through hole 104 may be disposed on the battery cavity 103, or on the second housing 101, or formed by a gap between the battery cavity 103 and the second housing 101, or may be disposed in another manner, which is not specifically limited herein. In addition, the number of the overflowing holes 104 may be one or more, and the application is not limited in particular, and when the number of the overflowing holes 104 is more than one, the overflowing holes may be uniformly arranged along the circumferential direction of the power supply system outer casing 101.
Further, flange rings for centering and positioning may be disposed at the upper and lower ends of the battery cavity 103. The overflow holes 104 are arranged on the flange ring; the flange ring abuts against the limiting step, and the flange ring is in clearance fit with the second shell 101. When drilling fluid in the well is circulated in the drilling tool, it may be circulated through the flowbore 104 and the gap between the flange ring and the second housing 101 when flowing through the power supply system.
The battery cavity 103 and the battery cavity seal cover 102 cooperate to position the battery 105 to isolate the battery 105 from drilling fluid. Specifically, the shape and size of the battery cavity 103 may be determined according to the shape and size of the battery 105, and the application is not limited thereto. In addition, the battery cavity 103 and the battery cavity sealing cover 102 can be detachably connected to facilitate the assembly and disassembly of the battery 105. For example, the battery chamber sealing cover 102 may be a plug with certain elasticity, which is disposed at the opening end of the battery chamber 103 by means of interference fit. In addition, a sealed power outlet 106 may be provided at a lower portion of the battery chamber 103, and a power supply cable 107 may transmit electricity to the vibration monitoring system and the circumferential damping performing system through the sealed power outlet 106.
In this embodiment, the vibration monitoring system is configured to monitor, process, and analyze downhole drilling tool vibrations in real time, and to start the circumferential damping execution system as needed according to a program setting.
The vibration monitoring system may include: the vibration measuring device comprises a third shell 201, a vibration measuring sensor 202 and a monitoring processing unit 205, wherein the vibration measuring sensor 202 and the monitoring processing unit 205 are arranged on the third shell 201, and are electrically connected and are powered by the power supply system.
The third housing 201 may be hollow and cylindrical, the hollow portion is a through hole, and joints, i.e., an upper joint and a lower joint, may be disposed at upper and lower ends of the hollow portion. The inner side of the upper joint may be provided with an internal thread for coupling with the second housing 101; the outer side of the lower joint can be provided with external threads for connecting with a circumferential damping execution system. Of course, the second housing 101 and the third housing 201 may be one housing; in addition, when two housings are provided, they may be connected by other connection methods, and the present application is not limited to this. The third housing 201 is provided therein with a vibration measuring sensor 202, a monitoring processing unit 205, and a power supply cable 107.
Specifically, the outer wall of the third casing 201 may be provided with: the sensor sealing gland 203 is matched with the first groove, and the monitoring processing unit sealing gland 204 is matched with the second groove. The vibration measuring sensor 202 is arranged in the first groove and is sealed by the sensor sealing gland 203; the monitoring processing unit 205 is disposed in the second groove and sealed by the monitoring processing unit sealing gland 204.
The vibration measuring sensor 202 is used to obtain a vibration signal of the drilling tool, and the specific form and installation manner thereof are not limited in this application. For example, the vibration measuring sensor 202 may be mounted on the third housing 201 by a screw thread. Further, a sensor gland 203 seals the vibration measuring sensor 202 to prevent well drilling fluid from entering the vibration measuring sensor 202 and affecting its normal operation. Of course, if the vibration measuring sensor 202 has a waterproof function, the sensor gland 203 may be omitted.
The monitoring processing unit 205 is electrically connected to the vibration measuring sensor 202, and is capable of receiving a vibration signal of the vibration measuring sensor 202, comparing the processed vibration signal with a preset vibration threshold, and controlling the power supply system to supply power to the circumferential damping execution system to start the circumferential damping execution system to perform circumferential damping when the circumferential vibration of the drilling tool indicated by the vibration signal is too large. The form and installation manner of the monitoring processing unit 205 are not specifically limited herein. For example, the monitoring unit 205 may be mounted on the third housing 201, and further, the monitoring unit gland 204 seals the monitoring unit 205 to prevent well drilling fluid from entering the monitoring unit 205. Of course, if the monitoring processing unit 205 has a waterproof function, the monitoring processing unit sealing cover 204 may be omitted.
A power supply sealing hole may be provided in the third housing 201, and the power supply cable 107 connected to the battery 105 may supply power to the vibration sensor 202 and the monitoring processing unit 205 through the power supply sealing hole in the third housing 201.
On the whole, when the circumferential damping tool works, the vibration monitoring system controls the starting or stopping of the circumferential damping execution system according to the magnitude of the vibration signal.
Specifically, referring to fig. 2, the working principle of the circumferential damping tool is as follows.
The monitoring processing unit firstly collects data of the vibration measurement sensor at a preset sampling frequency; then, processing and analyzing the vibration data, and comparing the vibration data with a preset vibration threshold value; when the underground vibration data is larger than the vibration threshold value, the monitoring processing unit transmits an execution signal to a starting switch of the circumferential damping execution system, the power supply system supplies power to the circumferential damping execution system, and the circumferential damping system is started to reduce vibration of the drilling tool. When the underground vibration data is smaller than the vibration threshold value, the monitoring processing unit transmits the execution signal to the starting switch of the circumferential damping execution system to enable the power supply system to stop supplying power to the circumferential damping system, and the circumferential damping system stops running at the moment, so that the damage of the circumferential vibration of the underground drilling tool to the drilling tool and the drilling bit can be damped and eliminated, the rock breaking efficiency of the drilling bit is improved, and the service life of the tool can be effectively prolonged.
In the present embodiment, the operation of the circumferential damper actuator system is started when power is supplied and stopped when power is turned off. The circumferential damping execution system comprises: a first housing 301 and a reciprocating mechanism disposed within the first housing 301. Wherein the reciprocating mechanism includes: a reciprocating impact hammer 3011 and a reciprocating cylinder 305 sleeved outside the reciprocating impact hammer 3011. Further, the electromagnetic sealing device can further comprise a sheath 302, a longitudinal pressure spring 303, a sealing gland 304, a first electromagnetic sealing block 306 and a second electromagnetic sealing block 308.
The first shell 301 has opposite upper and lower ends, and the lower end is connected with a bit connector 3012 through a force transmission mechanism, and the bit connector 3012 is used for connecting a bit to transmit torque generated by circumferential reciprocating rotation to the bit. As a whole, the first housing 301 may have a hollow cylindrical shape, a hollow portion of which is a through hole. Further, the through hole of the first housing 301 is a stepped through hole with a variable inner diameter.
The upper portion of the first housing 301 may be provided with an internal thread for connecting with the lower end of the third housing 201; the lower part of the device can be provided with a force transmission piece for transmitting torque, and particularly, the force transmission piece can be a spline. Correspondingly, a key slot matched with the spline can be arranged on the bit joint 3012, and the spline and the key slot are matched to form the force transmission mechanism. Of course, the form of the force transmission mechanism is not limited to the form of the above-mentioned spline and key slot, and may be other forms capable of transmitting torque, and other modifications may be made by those skilled in the art in light of the technical spirit of the present application, but all that can achieve the same or similar functions and effects as the present application are within the scope of the present application.
A second drain port 3010 may be provided on a side wall of the first housing 301 for draining drilling fluid to and from the reciprocating cylinder 305. Specifically, the number of the second liquid discharge ports 3010 may be an even number, for example, two, four, six, and the like, and the present application is not limited to this. The second liquid discharge ports 3010 may be arranged symmetrically along the axial direction. Further, the first casing 301 is further provided with an annular liquid discharge groove 30101 for communicating with the second liquid discharge port 3010. When the reciprocating cylinder 305 rotates on the same circumference during the reciprocating impact motion, the plurality of first discharge ports 309 can be used to transmit high and low pressures by connecting them together in the present embodiment by means of the annular discharge groove 30101.
The shuttle cylinder 305 may be a hollow cylinder. Specifically, the shuttle cylinder 305 may be a "T" shaped cylinder with a large upper end diameter and a small lower end diameter as a whole. Specifically, the inner hole in the upper portion of the reciprocating cylinder 305 is formed by four circular arcs and four straight line segments, the four circular arcs are two circular arcs with different diameters, and the two large-diameter circular arcs and the four straight line segments form two symmetrical fan-shaped spaces. The inner hole of the lower portion of the shuttle cylinder 305 is a through hole, and the diameter of the through hole is equal to or smaller than the diameter of the upper small-diameter circular arc. The upper large diameter section of the shuttle cylinder 305 is provided with a first drain 309 for draining drilling fluid from the shuttle cylinder 305. The number of the first drain ports 309 may be an even number.
The upper part of the reciprocating impact hammer 3011 is cylindrical, and the lower part of the reciprocating impact hammer is composed of four circular arcs and four straight line segments. The two large-diameter section circular arcs and the four sections of straight lines form two symmetrical fan-shaped convex blocks. The reciprocating impact hammer 3011 is installed in the reciprocating cylinder 305, a sector-shaped protrusion of the reciprocating impact hammer 3011 is fitted to a sector-shaped space of the reciprocating cylinder 305, and an arc angle corresponding to the sector-shaped protrusion of the reciprocating impact hammer 3011 is smaller than an arc angle corresponding to the sector-shaped space of the reciprocating cylinder 305. The diameter of the circular arc of the large-diameter section at the lower part of the reciprocating impact hammer 3011 is the same as the diameter of the circular arc of the large diameter of the inner hole at the upper part of the reciprocating cylinder 305, and the diameter of the circular arc of the small-diameter section at the lower part of the reciprocating impact hammer 3011 is the same as the diameter of the circular arc of the small diameter of the inner hole at the upper part of the reciprocating cylinder.
The longitudinal compression spring 303 is in a compressed state, and may be configured to provide a restoring force to the first electromagnetic sealing block and the second electromagnetic sealing block abutting against the longitudinal compression spring. Specifically, the longitudinal compression spring 303 may include a first longitudinal compression spring and a second longitudinal compression spring, where the first longitudinal compression spring is used for matching with the first electromagnetic sealing block; and the second longitudinal compression spring is used for being matched with the second electromagnetic sealing block.
And a liquid inlet through hole 307 is formed in the reciprocating impact hammer 3011 and is used for circulating drilling liquid. When the liquid inlet through hole 307 is communicated with the reciprocating cavity 30502, the liquid inlet channel is formed. Specifically, the number of the liquid inlet through holes 307 may be even.
In this embodiment, when the lower portion of the reciprocating impact hammer 3011 is in the shape of a four-segment circular arc and four straight line segments, and the inner hole at the upper end of the reciprocating cylinder 305 is in the shape of a four-segment circular arc and four straight line segments, the reciprocating cavity 30502 is a four-segment cavity formed by the lower portion of the reciprocating impact hammer 3011 and the upper portion of the reciprocating cylinder 305. Of course, the specific shape, number, etc. of the reciprocating cavities 30502 may be different according to the specific shape and fit of the reciprocating hammer 3011 and the reciprocating cylinder 305, and the present application is not limited thereto.
A limit step is formed at a position where the small-diameter section and the large-diameter section of the reciprocating cylinder 305 pass, and the fan-shaped convex part of the reciprocating impact hammer 3011 is clamped at the limit step.
The first electromagnetic sealing block 306 can be in a circular arc strip shape and is matched with the longitudinal pressure spring 303 for use, and when the first electromagnetic sealing block 306 is electrified, the first electromagnetic sealing block is pushed upwards to open the liquid inlet through hole 307.
The sheath 302 can be cylindrical and is arranged at the upper end of an inner hole of the reciprocating impact hammer 3011 and used for positioning the longitudinal pressure spring 303 and the first electromagnetic sealing block 306.
The sealing gland 304 is used for forming a sealing cavity with the reciprocating cylinder 305 and the reciprocating impact hammer 3011, and driving the reciprocating impact hammer 3011 to do circumferential impact motion under the action of drilling hydraulic pressure. Specifically, the gland 304 may be a circular ring, and has an outer diameter the same as the outer diameter of the upper portion of the reciprocating cylinder 305, and an inner diameter the same as the outer diameter of the cylindrical section at the upper end of the reciprocating impact hammer 3011.
The shuttle cylinder 305 is mounted at the internal bore step of the first housing 301, the internal bore step of the first housing 301 providing support for the shuttle cylinder 305.
A second longitudinal compression spring and a second electromagnetic seal block 308 are provided between the reciprocating cylinder 305 and the first housing 301. When the second electromagnetic seal block 308 is energized, the second electromagnetic seal block 308 moves downward, and opens the second liquid discharge port 3010 and the first liquid discharge port 309 to discharge the drilling fluid in the reciprocating cylinder 305. The lower portion of the shuttle cylinder 305 is threadedly connected to the bit sub 3012, and the splines on the lower portion of the outer housing 301 of the two connected circumferential damping systems are engaged with the splines on the upper large diameter section of the bit sub 3012 to transmit the torque of the drill string and the additional shuttle impact torque generated by the shuttle cylinder 305.
When the circumferential damping execution system starts to work, the first electromagnetic sealing block 306 corresponding to the liquid inlet through hole 307 moves upwards, the liquid inlet through hole 307 is opened, and high-pressure drilling fluid in the drilling tool can enter a reciprocating cavity 30502 between the reciprocating cylinder 305 and the reciprocating impact hammer 3011 through the liquid inlet through hole 307. At the same time, the second electromagnetic seal block 308 of the reciprocating cylinder 305 moves downward, opening the first drain port 309, and allowing the first drain port 309 to communicate with the second drain port 3010.
When high-pressure drilling fluid enters the reciprocating cylinder 305 to form a sector-shaped sealed space with the reciprocating impact hammer 3011 and the sealing gland, the high-pressure drilling fluid pushes the reciprocating impact hammer 3011 to move, when the reciprocating impact hammer 3011 moves to a direction dead point, the reciprocating impact hammer 3011 impacts the reciprocating cylinder 305, under the action of impact force, the reciprocating cylinder 305 moves and is transmitted to a drill bit through the lower drill bit connector 3012, at the moment, the opened liquid inlet through hole 307 and the first liquid outlet 309 are closed through the first electromagnetic sealing block 306 and the second electromagnetic sealing block 308, the other liquid inlet through hole 307 and the first liquid outlet 309 are opened, the high-pressure drilling fluid pushes the reciprocating impact hammer 3011 to move reversely, and when the reciprocating impact hammer 3011 moves to a reverse dead point, the opened liquid inlet through hole 307 and the first liquid outlet 309 are closed, and the other liquid inlet through hole 307 and the first liquid outlet 309 are opened. The reciprocating hammer 3011 performs reciprocating impact motion, and the reciprocating hydraulic cylinder 305 performs reciprocating motion under the impact action of the reciprocating hammer 3011 and transmits the reciprocating motion to the drill bit through the lower spline. The reciprocating movement of the drill bit can effectively reduce the circumferential stick-slip vibration of the drill bit of the drilling tool, improve the rock breaking efficiency of the drill bit and protect the drill bit.
When the circumferential damping tool execution system is not started, the outer shell 301 of the circumferential damping tool execution system is matched with the drill bit connector 3012 through a lower spline, and the torque of an upper drilling tool is transmitted to a drill bit to break rock. After the circumferential damping tool execution system is started, the spline is matched to transmit the torque of the upper drilling tool for rock breaking of the drill bit on the one hand, and meanwhile, the periodic impact torque of the reciprocating motion cylinder 305 is transmitted to reduce circumferential stick-slip vibration of the drilling tool, so that the rock breaking efficiency of the drill bit is improved, and the drill bit is protected.
The application circumference damper is the circumference damper of closed loop monitoring in the pit, analysis, judgement, control integration, can improve the broken rock efficiency of drill bit, the protection drilling tool. Specifically, the circumferential damping tool can collect, analyze and judge the circumferential vibration condition in the well in real time, and when the circumferential vibration in the well exceeds a set vibration threshold value, a circumferential damping execution system is started to damp the circumferential stick-slip vibration of the drilling tool and the drill bit; and when the downhole vibration is smaller than the set vibration threshold value, stopping the circumferential damping execution system. The circumference shock attenuation instrument can real-time circumference shock attenuation, can effectively improve instrument life-span itself again.
Specially, this application circumference shock attenuation instrument specially adapted hard stratum, contain gravel stratum, soft or hard alternating stratum for eliminate drilling tool circumference and stick smooth vibration, improve broken rock efficiency of drill bit, extension drill bit life-span, protection drilling tool. According to the experiment analysis, the circumferential damping tool can improve the rock breaking efficiency of the drill bit by more than 40%.
In a specific application scenario, as shown in fig. 1, the circumferential shock absorbing tool includes: the vibration damping system comprises a power supply system, a vibration monitoring system and a vibration damping execution system.
Wherein, the power supply system provides the power for circumference shock attenuation instrument, guarantees the instrument power consumption in the pit. The power supply system includes: a second shell 101, a battery cavity sealing cover 102, a battery cavity 103, an overflowing hole 104, a battery 105, a power outlet 106 with a seal and a power supply cable 107. The power supply system outer shell 101 is a hollow cylinder, and the hollow part is a step through hole. The upper part of the outer casing 101 of the power supply system is connected with the drilling tool in a threaded manner, and the lower part of the outer casing can also be connected with the third casing 201 in a threaded manner. The upper end and the lower end of the battery cavity 103 are provided with righting and positioning flange rings, and the flange rings are provided with the overflowing holes 104. The end face of the lower flange corresponding to the battery cavity 103 is arranged on a step hole in the power supply system outer shell 101, and the outer diameter of the flange ring is in clearance fit with the inner hole of the power supply system outer shell 101. The battery 105 is placed in the battery cavity 103, and the upper part is sealed by the battery cavity sealing cover 102. The battery cavity 103 has a sealed power outlet 106 at the lower part, and a power supply cable 107 supplies electricity to the vibration monitoring system and the circumferential damping actuating system through the sealed power outlet 106 at the lower part.
The vibration monitoring system is used for monitoring, processing and analyzing the vibration of the underground drilling tool in real time, and starting the circumferential damping execution system according to program setting and under the condition of requirement. The vibration monitoring system includes: a third housing 201, a vibration measuring sensor 202, a sensor gland 203, a monitoring processing unit gland 204, a monitoring processing unit 205, a data transmission line 206.
The third casing 201 is a hollow cylinder, the upper end and the lower end of the third casing are provided with threads, the upper end with threads is connected with the second casing 101, and the lower end with threads is connected with the outer casing 301 of the damping execution system. The vibration measuring sensor 202 is mounted on the vibration monitoring outer case 201 by a screw thread, and the sensor gland 203 seals the vibration measuring sensor 202. The monitoring processing unit 205 is mounted on the third housing 201, and the monitoring processing unit sealing cover 204 seals the monitoring processing unit 205. The power supply cable 107 feeds electricity to the vibration sensor 202 and the monitoring processing unit 205 through power supply sealing holes on the inner hole of the vibration monitoring outer case 201, respectively. The vibration measurement sensor 202 transmits the measured data signal to the monitor processing unit 205 through the data transmission line 206.
The program operation flow of the monitoring processing unit 205 is as shown in fig. 2, and the detecting processing unit 205 may include a vibration data collector and a vibration data analyzing and processing module, where the vibration data collector collects vibration measurement sensor data according to a sampling frequency set by a program, and then the vibration data analyzing and processing module processes and analyzes the vibration data, compares the vibration data with data set in the program, and determines whether the circumferential vibration intensity is greater than a set value. And if the underground vibration data is larger than the set threshold value, starting a circumferential damping execution system to reduce the vibration of the drilling tool. When the downhole vibration data is smaller than the set threshold value, the monitoring processing unit 205 controls the circumferential damping execution system to stop working, so that the purposes of damping and eliminating the damage of the circumferential vibration of the downhole drilling tool to the drilling tool and the drilling bit, improving the rock breaking efficiency of the drilling bit and effectively prolonging the service life of the tool are achieved.
The circumferential damping execution system is started when power is supplied, and stops working when power supply is stopped. Specifically, the circumferential damping execution system comprises: the drill bit comprises a first shell 301, a sheath 302, a longitudinal pressure spring 303, a sealing gland 304, a reciprocating cylinder 305, a first electromagnetic sealing block 306, a second electromagnetic sealing block 308, a reciprocating impact hammer 3011 and a drill bit connector 3012.
The first housing 301 is a hollow cylinder, the hollow part is a stepped through hole, the upper part of the hollow part is provided with a connecting thread for connecting with the lower part of the third housing 201 through a thread, and the lower part of the hollow part is provided with a spline for transmitting torque. As shown in fig. 3, the first casing 301 has 2 symmetrical second fluid discharge ports 3010 for discharging the drilling fluid in the return cylinder 305 to the annulus. The two liquid discharge ports are communicated through an annular liquid discharge groove 30101.
The shuttle cylinder 305 is a hollow "T" shaped cylinder with a large upper end diameter and a small lower end diameter. As shown in fig. 4, the inner bore of the upper end of the shuttle cylinder 305 is in the shape of a four-segment circular arc and four straight segments. The four sections of circular arcs comprise two circular arcs with large diameters and two circular arcs with small diameters. The two large-diameter circular arc sections and the four straight line sections form two symmetrical fan-shaped spaces, and the angle of the fan-shaped spaces corresponding to circular arcs is 30-175 degrees. The inner hole of the lower part of the reciprocating cylinder 305 is a through hole, and the diameter of the through hole is equal to or smaller than that of the circular arc with the small diameter of the upper part, and is used for forming a drilling fluid circulation channel. The upper large diameter section of shuttle cylinder 305 has four first fluid discharge ports 309 for discharging drilling fluid from shuttle cylinder 305. The first drain ports, labeled 309A and 309B, respectively, in fig. 4, have the same opening and closing steps during operation of the circumferential damping actuator system. A second electromagnetic seal block slot 30501 is formed in a side wall of the reciprocating cylinder 305, and is used for positioning and mounting the second electromagnetic seal block 308 and the longitudinal compression spring 303. Specifically, the second electromagnetic sealing block slot 30501 may be located opposite to the first drain port 309 in the circumferential direction. Specifically, the number of the second electromagnetic sealing block slots 30501 may be the same as that of the second electromagnetic sealing block 308 and the first liquid discharge port 309, and the positions of the second electromagnetic sealing block slots are matched with that of the first liquid discharge port 309. When the number of the first liquid discharge ports 309 is four, as shown in fig. 4, the second electromagnetic sealing block slot 30501 is axially symmetric 30501A and 30501B in the set. When power is applied, the second electromagnetic seal block 308 moves downward to open the first drain port 309.
Referring to fig. 5, the upper portion of the reciprocating impact hammer 3011 may be cylindrical, and the lower portion may be composed of four circular arcs and four straight segments. Wherein, two large diameter section circular arcs and four sections straight lines form two symmetrical fan-shaped convex blocks. The arc angle corresponding to the sector may be 30 ° -150 °, and the arc angle corresponding to the sector protrusion of the reciprocating hammer 3011 is smaller than the arc angle corresponding to the sector space of the reciprocating cylinder 305.
The reciprocating impact hammer 3011 is provided with four liquid inlet through holes 307 for providing a liquid inlet channel for drilling liquid, as shown in fig. 5, the liquid inlet through holes 307A and 307B are respectively marked, and the liquid inlet through holes 307 of the reciprocating impact hammer with the same mark have the same opening and closing steps when the circumferential damping execution system works.
The first electromagnetic sealing block 306 can be in a circular arc strip shape, is used in cooperation with the longitudinal pressure spring 303, and is installed in a first electromagnetic sealing block clamping groove 301101, and the number of the first electromagnetic sealing block clamping grooves 3011001 is the same as that of the first electromagnetic sealing block 306 and the liquid inlet through holes 307, and the positions of the first electromagnetic sealing block clamping grooves are matched with those of the liquid inlet through holes 307. When the inlet through holes 307 are four conjugated, as shown in fig. 5, the first electromagnetic sealing block slots 301101 are 301101a and 301101B that are axially symmetric in a group. When the power is on, the first electromagnetic sealing block 306 pushes upwards to open the liquid inlet through hole 307.
The sheath 302 may be cylindrical, and is mounted on the upper end of the inner hole of the reciprocating impact hammer 3011, and is used for positioning the longitudinal compression spring 303 and the first electromagnetic sealing block 306.
The gland 304 may be circular, and has an outer diameter the same as the outer diameter of the upper part of the reciprocating cylinder 305 and an inner diameter the same as the outer diameter of the upper cylindrical section of the reciprocating impact hammer 3011.
The lower portion of the shuttle cylinder 305 is connected with the bit sub 312 through threads, and after the connection between the lower spline of the outer shell 301 of the circumferential damping system and the upper spline of the large-diameter section of the bit sub 312 are matched, the lower spline is used for transmitting the torque of the drill string and the additional shuttle impact torque generated by the shuttle cylinder 305.
The function of the gland 304 is to make the reciprocating cylinder 305 and the reciprocating hammer 3011 form a reciprocating cavity 30502 with sealed upper end. Specifically, the gland 304 may be disposed at the upper end of the reciprocating cylinder 305 and sleeved outside the reciprocating hammer 3011.
As shown in fig. 7, when the circumferential damping execution system rotates clockwise and impacts, when the circumferential damping execution system starts to work, 2 liquid inlet through holes 307B move upward corresponding to the first electromagnetic sealing block 306 in the first electromagnetic sealing block slot 301101B, open 2 liquid inlet through holes 307B, and at the same time, the second electromagnetic sealing block 308 in the second electromagnetic sealing block slot 30501B corresponding to the low-pressure liquid discharge port 309B of the 2 reciprocating cylinders 305 moves downward, opening the low-pressure liquid discharge port 309B of the 2 reciprocating cylinders 305. High-pressure drilling fluid in the drilling tool enters the reciprocating motion cylinder 305 through the 2 liquid inlet through holes 307B to form a sector-shaped sealed space with the reciprocating impact hammer 3011 and the sealing gland 304, and at the moment, the reciprocating cavity 30502 is connected with the low-pressure annular drilling fluid through the annular liquid discharge groove 30101 and the second liquid discharge port 3010. Because the drilling fluid pressure in the drilling tool is higher than the annulus drilling fluid pressure, and the pressure difference exists between the two surfaces of the reciprocating impact hammer 3011, the reciprocating impact hammer 3011 rotates clockwise under the pushing of the high-pressure drilling fluid. When the reciprocating hammer 3011 moves to a direction dead center, the reciprocating hammer 3011 strikes the reciprocating cylinder 305, and the reciprocating cylinder 305 is moved by the impact force and is transmitted to the bit through the lower bit sub 3012. In addition, when the return impact hammer 311 moves to one direction dead point, the 2 liquid inlet through holes 307B and the 2 first liquid outlet 309B, which have been opened now, are closed by the movement of the first electromagnetic seal block 306, the second electromagnetic seal block 308. As shown in fig. 8, the other 2 liquid inlet through holes 307A and the 2 first liquid outlet ports 309A are opened. The high-pressure drilling fluid reversely pushes the reciprocating impact hammer 3011 to move anticlockwise, when the reciprocating impact hammer 3011 moves to a reverse dead point, the opened 2 liquid inlet through holes 307A and 2 first liquid discharge ports 309A are closed, and the other 2 liquid inlet through holes 307B and 2 first liquid discharge ports 309B are opened. The reciprocating hammer 3011 performs reciprocating impact motion in the reciprocating cylinder 305 (shown in fig. 7 and 8). The reciprocating hydraulic cylinder 305 reciprocates by the impact of the reciprocating hammer 3011 and is transmitted to the drill bit through the lower spline. The reciprocating movement of the drill bit can effectively reduce the circumferential stick-slip vibration of the drill bit of the drilling tool, improve the rock breaking efficiency of the drill bit and protect the drill bit.
When the circumferential damping tool execution system is not started, the circumferential damping tool execution system outer shell 301 is matched with the drill bit joint 312 through a lower spline, and the torque of the upper drilling tool is transmitted to the drill bit for rock breaking. After the circumferential damping tool execution system is started, the spline is matched to transmit the torque of the upper drilling tool for rock breaking of the drill bit on the one hand, and meanwhile, the periodic impact torque of the reciprocating motion cylinder 305 is transmitted to reduce circumferential stick-slip vibration of the drilling tool, so that the rock breaking efficiency of the drill bit is improved, and the drill bit is protected.
Referring to fig. 9, a circumferential damping method according to an embodiment of the present application is further provided, where the circumferential damping method includes:
step S10: acquiring vibration data of the drilling tool through a vibration measuring mechanism;
step S12: comparing the acquired drilling tool vibration data with a preset vibration threshold;
step S14: and when the drilling tool vibration data are larger than the preset vibration threshold value, starting a circumferential damping execution system.
In the present embodiment, the vibration measuring mechanism may include a vibration measuring sensor and a monitoring processing unit. Firstly, vibration data can be obtained through the vibration measuring sensor, then the monitoring processing unit compares the vibration data with a preset vibration threshold value prestored in the monitoring processing unit, when the vibration data of the drilling tool is larger than the preset vibration threshold value, the fact that circumferential shock absorption processing needs to be carried out at the moment is indicated, and correspondingly, a circumferential shock absorption execution system is started to carry out circumferential shock absorption.
In one embodiment, the method may further comprise: step S16: and when the drilling tool vibration data are smaller than the preset vibration threshold value, continuously executing the step of obtaining the drilling tool vibration data and comparing the drilling tool vibration data with the data by the vibration measuring mechanism.
In a specific embodiment, the monitoring processing unit in the vibration measuring mechanism may also acquire vibration data of the measuring sensor at a predetermined frequency, and similarly, repeat the above steps 12 to 16.
The circumferential damping method is integrated with underground closed-loop monitoring, analyzing, judging and controlling, automatic control over drilling tool protection can be achieved, the rock breaking efficiency of the drill bit is improved, and the drilling tool is protected.
The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.
The above description is only a few embodiments of the present invention, and although the embodiments of the present invention are described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (16)
1. A circumferential dampening tool, comprising:
the vibration monitoring system is electrically connected with the power supply system;
the vibration monitoring system comprises a vibration measuring sensor and a monitoring processing unit;
the circumferential damping execution system comprises a first shell and a reciprocating mechanism arranged in the first shell, wherein the mechanism comprises a reciprocating impact hammer and a reciprocating cylinder sleeved outside the reciprocating impact hammer;
a separated reciprocating cavity is formed between the reciprocating impact hammer and the reciprocating cylinder, and a liquid inlet through hole is formed in the reciprocating impact hammer and can be communicated with the reciprocating cavity to form a liquid inlet channel;
the reciprocating cylinder is provided with a first liquid discharge port, the first shell is provided with a second liquid discharge port which can be communicated with the first liquid discharge port, and the reciprocating cavity can be sequentially communicated with the first liquid discharge port and the second liquid discharge port to form a liquid outlet channel;
when the monitoring processing unit controls the power supply system to supply power to the circumferential damping execution system according to the vibration signal acquired by the vibration measurement sensor, the liquid inlet channel and the liquid outlet channel are communicated with the reciprocating mechanism, and the reciprocating impact hammer and the reciprocating cylinder can perform circumferential reciprocating rotation;
the drill bit joint is used for being connected with a drill bit, the inner side of the upper end of the drill bit joint is connected with the reciprocating cylinder, and the outer side of the drill bit joint is connected with the first shell through a force transmission mechanism.
2. The circumferential shock absorbing tool of claim 1, wherein the force transmitting mechanism is a spline and keyway mating mechanism.
3. The tool of claim 1, wherein the number of the first drain ports is an even number,
the first shell is a hollow cylinder, and an annular liquid discharge groove communicated with the first liquid discharge port is formed in the inner wall of the first shell.
4. The circumferential shock absorbing tool of claim 1, wherein said circumferential shock absorbing actuation system further comprises:
the first electromagnetic sealing block is used for controlling the opening and closing of a liquid inlet through hole in the reciprocating impact hammer;
the second electromagnetic sealing block is used for controlling the opening and closing of the first liquid discharging port;
the first longitudinal pressure spring is matched with the first electromagnetic sealing block;
the second longitudinal pressure spring is matched with the second electromagnetic sealing block;
the first electromagnetic sealing block and the second electromagnetic sealing block are respectively and electrically connected with the monitoring processing unit;
the liquid inlet through holes and the first liquid discharge ports are the same in number and are even in number, and the first electromagnetic sealing block alternately controls half of the liquid inlet through holes to be opened and the other half of the liquid inlet through holes to be closed; and the second electromagnetic sealing block alternately controls half of the first liquid discharge port to be opened and the other half of the first liquid discharge port to be closed.
5. The circumferential shock absorbing tool of claim 4,
the reciprocating cylinder is a hollow cylinder with variable diameter, and the diameter of the upper part of the reciprocating cylinder is larger than that of the lower part of the reciprocating cylinder; the section of an inner hole at the upper part of the reciprocating motion cylinder forms two symmetrical fan-shaped spaces by four sections of circular arcs and four straight line sections, and the inner diameter of the lower part of the reciprocating motion cylinder is smaller than or equal to the diameter of the circular arc with smaller diameter in the four sections of circular arcs;
the reciprocating impact hammer is a hollow cylinder, the outline of the outer side of the lower part of the reciprocating impact hammer is formed by four sections of circular arcs and four straight line sections into two symmetrical fan-shaped bulges,
the sector arc angle of the protrusion of the reciprocating impact hammer is smaller than the arc angle of the sector space of the reciprocating motion cylinder.
6. The circumferential shock absorbing tool of claim 4, wherein said circumferential shock absorbing actuation system further comprises:
and the sheath is arranged at the upper end of the reciprocating impact hammer, is cylindrical and is used for positioning the first longitudinal pressure spring and the first electromagnetic sealing block.
7. The tool of claim 4, wherein a second electromagnetic seal block slot is provided on an outer side wall of the reciprocating cylinder for mounting a low pressure drain and a second longitudinal compression spring.
8. The circumferential shock absorbing tool of claim 1, wherein said circumferential shock absorbing actuation system further comprises: the sealing cover is arranged at the upper end of the reciprocating cylinder, sleeved outside the reciprocating impact hammer and used for forming a sealed annular cavity between the reciprocating cylinder and the reciprocating impact hammer.
9. The circumferential shock absorbing tool of claim 1, wherein the power supply system comprises: the second casing, set up in battery chamber in the second casing, sealed setting are in battery intracavity battery and with battery electric connection's supply cable, wherein, power supply system still is provided with the discharge orifice that is used for circulating drilling fluid.
10. The tool of claim 9, wherein the second housing has an inner thread at an upper end thereof for connection with the upper drill, an outer thread at a lower end thereof for connection with a vibration monitoring system, and a stopper step for stopping the battery chamber.
11. The circumferential cushioning tool of claim 10, wherein said flow aperture is disposed on said battery chamber, or on said second housing, or is formed by a gap between said battery chamber and said second housing.
12. The tool of claim 11, wherein the battery chamber is provided at upper and lower ends with flange rings, the overflow holes being provided on the flange rings; the flange ring is abutted against the limiting step, and the flange ring is in clearance fit with the second shell.
13. The circumferential shock absorbing tool of claim 1, wherein said vibration monitoring system comprises: the vibration measuring sensor and the monitoring processing unit are electrically connected and are powered by the power supply system.
14. The circumferential shock absorbing tool of claim 13, wherein the third housing has disposed on an outer wall thereof: the device comprises a first groove and a sensor sealing gland matched with the first groove, and a second groove and a monitoring processing unit sealing gland matched with the second groove;
the vibration measuring sensor is arranged in the first groove and is sealed through the sensor sealing gland; the monitoring processing unit is arranged in the second groove and sealed through the monitoring processing unit sealing gland.
15. A circumferential dampening method, comprising:
acquiring vibration data of the drilling tool through a vibration measuring mechanism;
comparing the acquired drilling tool vibration data with a preset vibration threshold;
when the vibration data of the drilling tool is larger than the preset vibration threshold value, starting a circumferential damping execution system, wherein the circumferential damping execution system comprises a first shell and a reciprocating mechanism arranged in the first shell, and the mechanism comprises a reciprocating impact hammer and a reciprocating cylinder sleeved outside the reciprocating impact hammer;
a separated reciprocating cavity is formed between the reciprocating impact hammer and the reciprocating cylinder, and a liquid inlet through hole is formed in the reciprocating impact hammer and can be communicated with the reciprocating cavity to form a liquid inlet channel;
the reciprocating cylinder is provided with a first liquid discharge port, the first shell is provided with a second liquid discharge port which can be communicated with the first liquid discharge port, and the reciprocating cavity can be sequentially communicated with the first liquid discharge port and the second liquid discharge port to form a liquid outlet channel.
16. The method of claim 15, further comprising:
and when the drilling tool vibration data are smaller than the preset vibration threshold value, continuously executing the step of obtaining the drilling tool vibration data and comparing the drilling tool vibration data with the data by the vibration measuring mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129684.9A CN106968612B (en) | 2017-03-07 | 2017-03-07 | Circumferential damping tool and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129684.9A CN106968612B (en) | 2017-03-07 | 2017-03-07 | Circumferential damping tool and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106968612A CN106968612A (en) | 2017-07-21 |
| CN106968612B true CN106968612B (en) | 2020-09-08 |
Family
ID=59328838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710129684.9A Active CN106968612B (en) | 2017-03-07 | 2017-03-07 | Circumferential damping tool and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968612B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR123395A1 (en) * | 2018-03-15 | 2022-11-30 | Baker Hughes A Ge Co Llc | DAMPERS TO MITIGATE VIBRATIONS OF DOWNHOLE TOOLS AND VIBRATION ISOLATION DEVICE FOR DOWNHOLE ARRANGEMENTS |
| CN114585797A (en) | 2019-09-12 | 2022-06-03 | 贝克休斯控股有限责任公司 | Damper for mitigating vibration of downhole tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4387885A (en) * | 1980-03-17 | 1983-06-14 | Bowen Tools, Inc. | Shock absorber assembly for absorbing shocks encountered by a drill string |
| US4354395A (en) * | 1980-12-15 | 1982-10-19 | Page John S Jr | Shock absorption apparatus associated with well pump |
| CN85202386U (en) * | 1985-06-07 | 1986-05-21 | 地质矿产部石油钻井研究所 | Automatic-drilling hydraulic shock absorber |
| US9458679B2 (en) * | 2011-03-07 | 2016-10-04 | Aps Technology, Inc. | Apparatus and method for damping vibration in a drill string |
| CN104563862B (en) * | 2014-12-17 | 2016-09-28 | 中国石油大学(北京) | composite impact drilling tool |
| CN206617103U (en) * | 2017-03-07 | 2017-11-07 | 中国石油天然气集团公司 | Circumferential shock absorbing tool |
-
2017
- 2017-03-07 CN CN201710129684.9A patent/CN106968612B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106968612A (en) | 2017-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107664015B (en) | Screw type double-acting accelerating tool | |
| US11066886B2 (en) | Setting tools and assemblies for setting a downhole isolation device such as a frac plug | |
| CN107664013B (en) | Impeller type axial and circumferential compound impactor | |
| RU2449882C2 (en) | Hydraulic rock breaker | |
| RU2408775C1 (en) | Hydraulic jars | |
| CN108798503B (en) | Screw type circumferential impact drilling tool | |
| RU2626096C1 (en) | Vibration damper | |
| MX2012008806A (en) | Shock reduction tool for a downhole electronics package. | |
| CN106968612B (en) | Circumferential damping tool and method | |
| KR20120084801A (en) | Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assembly | |
| CN103075097A (en) | Torsional impact drilling acceleration tool | |
| WO1998040599A1 (en) | Rotary and longitudinal shock absorber for drilling | |
| CN109025827B (en) | Hydraulic torsional pulse impactor for drilling speed increase | |
| KR102166515B1 (en) | No-vibration silent rock crusher using water pressure | |
| CN106837198B (en) | Composite shock-absorbing tool | |
| WO2012156735A2 (en) | Perforating drill string assembly | |
| CN106948802B (en) | Vibration damping method for drilling tool | |
| TR201808590T4 (en) | A high-frequency impact hammer driven by fluid pressure to drill in hard formations. | |
| CN108661551B (en) | Torsional vibration tool based on impeller and spring | |
| CN206617103U (en) | Circumferential shock absorbing tool | |
| RU2439282C1 (en) | Bottom-hole feeding mechanism | |
| CN206617104U (en) | Composite shock-absorbing instrument | |
| CN108678659B (en) | Down-hole descending friction low-frequency impact drilling tool | |
| US20220098943A1 (en) | Down the hole drilling assembly exhaust assembly | |
| CN110761707B (en) | Air-impact-proof twisting and punching tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Address before: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee before: China National Petroleum Corp. Patentee before: CNPC Drilling Engineering Technology Research Institute Co.,Ltd. Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: China National Petroleum Corp. Patentee after: CNPC Drilling Engineering Technology Research Institute Co.,Ltd. Address before: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee before: China National Petroleum Corp. Patentee before: DRILLING RESEARCH INSTITUTE OF CHINA NATIONAL PETROLEUM Co. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221223 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Patentee after: BEIJING PETROLEUM MACHINERY Co.,Ltd. Address before: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee before: CHINA NATIONAL PETROLEUM Corp. Patentee before: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. |
|
| TR01 | Transfer of patent right |