CN117868686A - Deviation correcting method of directional drill and filtering structure thereof - Google Patents
Deviation correcting method of directional drill and filtering structure thereof Download PDFInfo
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- CN117868686A CN117868686A CN202410063161.9A CN202410063161A CN117868686A CN 117868686 A CN117868686 A CN 117868686A CN 202410063161 A CN202410063161 A CN 202410063161A CN 117868686 A CN117868686 A CN 117868686A
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- 238000001914 filtration Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005553 drilling Methods 0.000 claims abstract description 157
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 238000012544 monitoring process Methods 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 39
- 238000012937 correction Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/10—Correction of deflected boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/064—Deflecting the direction of boreholes specially adapted drill bits therefor
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a correction method of an directional drill and a filtering structure thereof, comprising an anti-blocking mechanism, a bypass valve, a first spring and a second spring, wherein the bypass valve comprises a valve body piece, a valve sleeve and a valve core which are arranged in the valve body piece, and the first spring is arranged between the valve sleeve and the valve core; the filter component comprises a filter screen arranged in the side wall of the valve body, a filter piece arranged in the valve body and a plugging assembly arranged on the valve core; the invention prevents impurities in drilling fluid from entering the drilling tool through the arrangement of the filter screen and the filter element, damages to the drilling tool are reduced, faults caused by the impurities in the use process of the drilling tool are reduced, and in the use process of the drilling tool, the cavity for accommodating the impurities is arranged between the filter element and the valve element, so that the drilling fluid can continuously pass through the filter element, the normal operation of the drilling tool is ensured, and the impurities can be automatically discharged out of the valve element through the second through groove after the use of the drilling tool is finished.
Description
Technical Field
The invention relates to the technical field of directional drills, in particular to a correction method of a directional drill and a filtering structure of the correction method.
Background
The screw drilling tool is a part of directional drilling, and is a volumetric underground power drilling tool which uses drilling fluid as power and converts the fluid pressure energy into mechanical energy. When mud pumped by the mud pump flows through the bypass valve feeding motor, a certain pressure difference is formed between the inlet and the outlet of the motor, the rotor is pushed to rotate around the axis of the stator, and the rotating speed and torque are transmitted to the drill bit through the universal shaft and the transmission shaft, so that drilling operation is realized.
Disclosure of Invention
The present invention has been made in view of the above problems with the conventional deviation rectifying method for directional drills and the filtering structure thereof.
Therefore, the invention aims to provide a deviation correcting method of an directional drill and a filtering structure thereof.
In order to solve the technical problems, the invention provides the following technical scheme: a deviation rectifying method for directional drilling comprises the following steps,
preparation: selecting an appropriate directional drilling machine and tool;
installing a drilling tool: installing a directional drilling machine, and adjusting the position and the direction of the directional drilling machine to align the directional drilling machine with a drilling target;
adjusting the drilling direction: according to specific conditions, rotation, deflection or other corresponding directional drilling methods are selected to be used, and when drilling fluid enters a directional drilling tool, the anti-blocking mechanism filters the drilling fluid;
monitoring and correcting: monitoring the direction and the position of the drilling hole in real time by using monitoring equipment of the directional drilling system, identifying the deviation of the drilling hole according to the monitoring result, and carrying out necessary deviation correcting operation to ensure that the drilling hole is kept on a target path;
and (3) drilling: after a predetermined depth of borehole is reached or drilling tasks are completed, the drilling operation is stopped and the drill rod and drill bit are extracted.
A directional drilling filter structure, which comprises the anti-blocking mechanism, comprising,
the bypass valve comprises a valve body member, a valve sleeve and a valve core which are arranged in the valve body member, and a first spring arranged between the valve sleeve and the valve core;
the filter component comprises a filter screen arranged in the side wall of the valve body, a filter piece arranged in the valve body and a plugging assembly arranged on the valve core;
the valve body piece is provided with a first through groove corresponding to the filter screen, the valve body piece is provided with a second through groove corresponding to the filter piece, and the filter piece is arranged above the valve core.
As a preferred embodiment of the directional drilling filtration structure of the present invention, wherein: the filter piece comprises a conical net arranged on the inner wall of the valve body piece and a columnar net arranged on the conical net;
the plugging assembly comprises a connecting rod arranged on the valve core and a circular ring arranged at the end part of the connecting rod;
wherein the connecting rod penetrates through the conical net.
As a preferred embodiment of the directional drilling filtration structure of the present invention, wherein: the reciprocating part comprises a fixed component arranged on the valve core and a driven component arranged on the filter screen;
wherein the driven assembly is guided by the stationary assembly.
As a preferred embodiment of the directional drilling filtration structure of the present invention, wherein: the fixed component comprises a fixed rod arranged on the valve core, a guide piece arranged at the bottom of the fixed rod and a guide groove arranged in the guide piece;
wherein, driven subassembly passes through the guide way and is connected with the guide.
As a preferred embodiment of the directional drilling filtration structure of the present invention, wherein: the driven component comprises a sliding rod which is slidingly arranged in the filter screen, a baffle plate which is arranged at the end part of the sliding rod, a U-shaped frame which is arranged at the other end of the sliding rod, and a fixed column which is arranged in the U-shaped frame;
wherein, the fixed column is spliced with the guide slot.
As a preferred embodiment of the directional drilling filtration structure of the present invention, wherein: the guide groove is provided with a straight line section I, a straight line section II and a wave section arranged between the straight line section I and the straight line section II.
As a preferred embodiment of the directional drilling filtration structure of the present invention, wherein: the vibrating component comprises a fixed plate arranged at the bottom of the conical net, a sliding component arranged on the fixed plate and a collision piece arranged on the valve core;
wherein, the conflict piece can conflict the subassembly that slides and remove.
As a preferred embodiment of the directional drilling filtration structure of the present invention, wherein: the sliding component comprises a limiting column arranged in the fixed plate, a sliding plate arranged at the end part of the limiting column, a striking block arranged at the back of the sliding plate, and a second spring arranged at the outer side of the limiting column.
As a preferred embodiment of the directional drilling filtration structure of the present invention, wherein: the abutting piece comprises a connecting rod arranged on the valve core and an angle block arranged at the top end of the connecting rod.
The invention has the beneficial effects that: through the setting of filter screen and filter, prevent that the impurity in the drilling fluid from getting into the drilling tool, cause the harm to the drilling tool, reduce the drilling tool because the trouble that impurity produced in the use, in the drilling tool use, owing to have the cavity that holds impurity between filter and the valve body spare to guarantee that the drilling fluid can continuously pass the filter, ensured the normal operating of drilling tool, and after the drilling tool uses, impurity can be through the automatic valve body spare of discharging of second through the groove.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of a valve body member according to the present invention.
Fig. 3 is a schematic view of the structure of the reciprocating member in the present invention.
Fig. 4 is a schematic structural view of the guide member in the present invention.
Fig. 5 is a schematic structural view of a vibration member in the present invention.
Fig. 6 is an enlarged view of fig. 5 a in the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
A deviation rectifying method for directional drill is provided.
In order to solve the technical problems, the invention provides the following technical scheme: a deviation rectifying method for directional drilling comprises the following steps,
preparation: determining the purpose and the requirement of drilling, including drilling depth, direction, position and the like, and selecting an appropriate directional drilling machine and tool to meet project requirements;
installing a drilling tool: installing a directional drilling machine, adjusting the position and the direction of the directional drilling machine to align the directional drilling machine with a drilling target, installing a drill bit or a drill rod, and ensuring the correct connection and fastening of the directional drilling machine;
adjusting the drilling direction: according to specific conditions, selecting a rotary, deflection or other corresponding directional drilling methods, and according to the target direction, adjusting the position and the posture of a drill bit or a drill rod to enable drilling to begin to drill in a preset direction, and when drilling fluid enters the directional drilling tool, filtering the drilling fluid by an anti-blocking mechanism S;
monitoring and correcting: monitoring the direction and the position of the drilling hole in real time by using monitoring equipment of the directional drilling system, identifying the deviation of the drilling hole according to the monitoring result, and carrying out necessary deviation correcting operation to ensure that the drilling hole is kept on a target path;
drilling progress: controlling the drilling feed rate and rotational speed, adjusting as needed to advance the borehole smoothly and efficiently, and depending on the formation conditions, may require the use of liquid drilling mud or other support materials to stabilize the borehole
And (3) drilling: after a predetermined depth of borehole is reached or drilling tasks are completed, the drilling operation is stopped and the drill rod and drill bit are extracted.
In this embodiment, the deviation correction of the directional drill adopts the following manner:
wireless inclinometry while drilling technique: the drilling inclinometry technology starts from the foreign petroleum drilling technology, is divided into four modes of mud pulse, electromagnetic wave, sound wave and optical fiber according to transmission channels, and is most widely used in the mud pulse mode. In the embodiment, a positive pulse wireless inclinometer is used, and after downhole parameters are encoded, a pulse signal is generated to drive a solenoid valve in a pulse generator to act, and part of mud is limited to flow into a drill string, so that mud positive pulses are generated. The mud pressure sensor is used on the ground to detect mud pulse information from the underground instrument and transmit the mud pulse information to the ground data processing system for processing, and the well inclination angle, azimuth angle and tool face data measured by the underground instrument are intuitively displayed on the computer and driller display;
underground while-drilling inclinometry and in-hole screw deviation correcting technology: the drilling tool assembly is suitable for drilling large-angle inclined holes in various drilling tool assembly modes of non-weighting drilling rod, low-weight drilling and hole bottom motor drilling for small-diameter drilling. The selected lubricating antifriction drilling mud formula, the three-stage mud purification process and the auxiliary grouting hole wall stabilizing measures of the deflecting section can effectively ensure the stability of the hole wall of the drilling hole, reduce the friction of the drilling hole of the large-angle inclined hole and ensure the safety of the drilling hole;
hole inclination monitoring: under the guidance of measurement parameters of a wireless inclinometer while drilling, the drilling track is directionally controlled through a directional screw drilling tool, each time 30m of inclinations are measured, one measuring point is 5-10 m, when the inclinations of the holes are over-biased, the measuring point is encrypted, and a directional deviation correcting design is formulated;
and (3) drilling deviation correction: the screw drill has two working postures, namely sliding drilling and compound drilling, if the deflection angle is larger than the design value, the screw drill performs reverse drilling at the deflection angle by using a bent screw rod according to the formulated deflection correction design to realize deflection correction, which is called sliding drilling; meanwhile, the inclinometer performs encryption measurement, if the offset angle is smaller than the design value, the directional length can be reduced, the composite drilling is performed, and the realization of the whole long inclined drilling is ensured.
Example 2
Referring to fig. 1-2, this embodiment differs from the first embodiment in that: a directional drilling filter structure, comprising the anti-blocking mechanism S, comprising,
a bypass valve 100 including a valve body 101, a valve housing 102 and a valve spool 103 provided in the valve body 101, and a first spring 104 provided between the valve housing 102 and the valve spool 103;
a filter element 200 comprising a filter screen 201 disposed in a sidewall of the valve body 101, a filter element 202 disposed in the valve body 101, and a closure assembly 203 disposed on the valve core 103;
wherein, the valve body member 101 is provided with a first through groove 101a corresponding to the filter screen 201, the valve body member 101 is provided with a second through groove 101b corresponding to the filter member 202, and the filter member 202 is arranged above the valve core 103;
the valve body piece 101 is in a circular tube shape, the valve sleeve 102 is fixedly arranged on the valve body piece 101, the top of the valve sleeve 102 is connected with the valve core 103 in a sliding manner, a first spring 104 is sleeved between the bottom end of the valve core 103 and the top end of the valve sleeve 102, the positions of the valve body piece 101 on two sides of the valve core 103 are provided with first through grooves 101a, a plurality of groups of first through grooves 101a are formed in the circumferential direction of the valve body piece 101 at equal intervals, a filter screen 201 is fixedly arranged in the first through grooves 101a, when a positioning drill is turned off, the filter screen 201 filters liquid entering the valve body piece 101, impurities are prevented from entering the valve body piece 101, the first through grooves 101a are in a cone shape which gradually expands from the inner side to the outer side, the impurities are not easy to stay in the first through grooves 101a, and the blocking of the filter screen 201 is reduced;
the filter piece 202 is fixedly arranged on the inner wall of the valve body piece 101, the filter piece 202 is arranged above the valve core 103, when the positioning drilling machine is started, and drilling fluid enters the bypass valve 100, the filter piece 202 filters the drilling fluid entering the valve core 103, impurities are prevented from entering the positioning drilling machine, the second through groove 101b corresponds to the bottom end of the filter piece 202, meanwhile, the filtered impurities of the filter piece 202 can be discharged through the second through groove 101b, the pressure of the drilling fluid enables the valve core 103 to slide downwards, the valve core 103 moves towards the valve sleeve 102, the valve hole is closed, the valve core 103 drives the plugging assembly 203 to slide when sliding, the plugging assembly 203 slides to close the second through groove 101b, and then the drilling fluid can enter the motor better.
Further, the filter element 202 includes a conical net 202a disposed on the inner wall of the valve element 101, and a columnar net 202b disposed on the conical net 202a; the plugging assembly 203 comprises a connecting rod 203a arranged on the valve core 103 and a circular ring 203b arranged at the end part of the connecting rod 203 a; wherein link 203a extends through conical net 202a;
the conical net 202a is fixedly arranged on the inner wall of the valve body piece 101, the conical net 202a gradually protrudes from the edge to the middle, a plurality of groups of second through grooves 101b are formed in the circumferential direction of the valve body piece 101 at equal intervals, the second through grooves 101b are inclined, the bottoms of the second through grooves 101b are flush with the upper surface of the conical net 202a, impurities remained on the surface of the conical net 202a can be discharged from the second through grooves 101b along the surface of the conical net 202a, the columnar net 202b is fixedly communicated with the middle position of the conical net 202a, the top of the columnar net 202b protrudes, the impurities are not easy to stay on the top surface of the columnar net 202b, the second through grooves 101b are closed by the sealing component 203, when the impurities filtered by the filter piece 202 cannot be discharged, a cavity capable of containing the impurities is formed between the filter piece 202 and the valve body piece 101, and the impurities fall on the conical net 202a due to the protruding of the top of the columnar net 202a, even if the columnar net 202a is completely covered by the conical net, the side edge of the columnar net 202b can keep filtration, the impurities can be reduced, the side edge of the columnar net 202b can still remain on the top of the columnar net 202b, the filtration effect can be reduced, and the impurities can be discharged along the surface of the conical net 101b after the filter piece is sealed, and the impurities can be discharged;
the top of the valve core 103 is fixedly connected with a plurality of groups of connecting rods 203a, the plurality of groups of connecting rods 203a penetrate through the conical net 202a and are fixedly connected with a circular ring 203b, the outer wall of the circular ring 203b is attached to the inner wall of the valve body 101, when the pressure of drilling fluid enables the valve core 103 to slide, the valve core 103 drives the circular ring 203b through the connecting rods 203a, after the valve core 103 slides in place, the circular ring 203b is driven to attach to the surface of the conical net 202a, and then the second through groove 101b is sealed.
The rest of the structure is the same as in embodiment 1.
The operation process comprises the following steps: when the directional drilling machine is closed, the bypass valve 100 is in an open state, the first spring 104 lifts the valve core 103, the valve hole is opened, mud entering the valve body member 101 through the first through groove 101a and the second through groove 101b is filtered by the filter screen 201 and the filter member 202;
when the directional drilling machine is started, drilling fluid enters the drilling tool, when the flow and the pressure of the drilling fluid reach standard set values, the valve core 103 slides into the valve sleeve 102 to close the valve hole, at the moment, the drilling fluid flows through the motor to be converted into mechanical energy, after the valve core 103 moves down and the bypass valve 100 is closed, the ring 203b is driven by the connecting rod 203a to slide down to close the second through groove 101b, at the moment, a cavity is formed between the valve body 101 and the filter 202, the drilling fluid entering the drilling tool is filtered by the filter 202, filtered impurities are stored in the cavity, so that the columnar net 202b is not easy to cover in the using process of the drilling tool, the filtering effect of the filter 202 is ensured, meanwhile, the drilling fluid cannot be influenced to enter the bypass valve 100, after the drilling tool operation is finished, the first spring 104 pushes the valve core 103 to move upwards, the valve core 103 drives the ring 203b to move to open the second through groove 101b, and the impurities in the cavity can be discharged by the second through groove 101b along the surface of the conical net 202a;
through the setting of filter screen 201 and filter element 202, prevent that the impurity in the drilling fluid from getting into the drilling tool, cause the harm to the drilling tool, reduce the drilling tool because the trouble that impurity produced in the use, in the drilling tool use, owing to have the cavity that holds impurity between filter element 202 and the valve body piece 101 to guarantee that the drilling fluid can pass filter element 202 continuously, ensured the normal operating of drilling tool, and after the drilling tool use, impurity can be through the automatic discharge valve body piece 101 of second through groove 101 b.
Example 3
Referring to fig. 1 to 4, this embodiment differs from the above embodiment in that: also included is a reciprocating member 300 comprising a stationary assembly 301 disposed on the valve core 103 and a driven assembly 302 disposed on the filter screen 201; wherein, the driven component 302 can be guided by the fixed component 301, the driven component 302 slides and locates on the filter screen 201, the fixed component 301 is fixed to locate the case 103 bottom, and driven component 302 and fixed component 301 sliding connection, when the case 103 slides to the valve barrel 102, when the bypass valve 100 is closed, the fixed component 301 is driven by the case 103 and moves, because driven component 302 is limited by the filter screen 201 and only can transversely slide, when fixed component 301 moves, driven component 302 is driven by fixed component 301 to slide, driven component 302 slides and clears up impurity in the first through groove 101a, and when the bypass valve 100 is opened, driven component 302 can block a part of impurity contact filter screen 201 surface, prevent filter screen 201 from being blocked.
Further, the fixing assembly 301 includes a fixing rod 301a disposed on the valve core 103, a guide member 301b disposed at the bottom of the fixing rod 301a, and a guide groove 301c formed in the guide member 301 b; the driven component 302 is connected with the guide piece 301b through the guide groove 301c, a plurality of groups of fixing rods 301a are fixedly arranged at the bottom of the valve core 103, the plurality of groups of fixing rods 301a are equidistantly arranged along the circumference of the valve core 103, the guide piece 301b is fixedly arranged at the bottom of the fixing rod 301a, the guide groove 301c is formed in the guide piece 301b, the driven component 302 is limited to slide transversely only because the driven component 302 is located in the guide groove 301c, the guide piece 301b can move longitudinally only, when the valve core 103 drives the guide piece 301b to move through the fixing rod 301a, the fixing piece moves outside the driven component 302, the driven component 302 is guided by the shape of the guide groove 301c to move transversely, when the bypass valve 100 is closed in place, the driven component 302 is driven by the guide groove 301c to be attached to the filter screen 201, and then the first through groove 101a is closed, so that drilling fluid can enter the drilling tool better.
Further, the driven assembly 302 includes a sliding rod 302a slidably disposed in the filter screen 201, a baffle 302b disposed at an end of the sliding rod 302a, a U-shaped frame 302c disposed at the other end of the sliding rod 302a, and a fixing post 302d disposed in the U-shaped frame 302 c; wherein, the fixed column 302d is inserted into the guide groove 301c, a sliding rod 302a is slidingly arranged at the central position of the filter screen 201, a baffle 302b is fixedly arranged at the end of the sliding rod 302a far away from the valve core 103, a U-shaped frame 302c is fixedly arranged at the other end of the sliding rod 302a, an opening which is matched with the guide piece 301b deeply is formed in the U-shaped frame 302c, a fixed column 302d is fixedly arranged in the U-shaped frame 302c, the fixed rod 301a is positioned in the guide groove 301c, the fixed column 302d is attached to the inner wall of the guide groove 301c, but when the guide piece 301b moves downwards, the guide piece 301b moves outside the fixed column 302d, the fixed column 302d is guided by the guide groove 301c to slide transversely, and the opening of the U-shaped frame 302c enables the guide piece 301b to slide outside the fixed column 302d smoothly;
when the bypass valve 100 is opened, the baffle 302b is located at the front end of the filter screen 201, at this time, the edge of the baffle 302b has a certain gap with the first through groove 101a, the gap is equal to the aperture of the filter screen 201, the gap can filter a part of impurities, the contact between the filter screen 201 and the impurities is reduced, the filter screen 201 is prevented from being blocked, in the closing process of the bypass valve 100, the fixed column 302d is driven by the guide piece 301b to slide, the baffle 302b slides back and forth to the side far away from the valve core 103, the baffle 302b slides to push out the impurities in the first through groove 101a, when the baffle 302b slides, the filter screen 201 can continue to filter the impurities, due to the conical arrangement of the first through groove 101a, the gap between the baffle 302b and the inner wall of the first through groove 101a becomes larger after the baffle 302b moves, even if the impurities enter between the back of the baffle 302b and the filter screen 201, when the gap becomes larger after the baffle 302b moves again, the impurities move out along the inner wall of the first through groove 101a, and when the bypass valve 100 is completely closed, the baffle 302b is driven to be attached to the surface of the filter screen 201.
Further, the guiding groove 301c is provided with a first straight line segment 301c-1 and a second straight line segment 301c-2, and a wavy segment 301c-3 arranged between the first straight line segment 301c-1 and the second straight line segment 301c-2, the two sections of the guiding groove 301c are respectively provided with a first straight line segment 301c-1 and a second straight line segment 301c-2, the first straight line segment 301c-1 is close to the inner wall of the valve body member 101, the second straight line segment 301c-2 is close to the outer side of the valve core 103, so that the first straight line segment 301c-1 and the second straight line segment 301c-2 are not on the same longitudinal line, when the bypass valve 100 is opened, the fixed column 302d is positioned at the first straight line segment 301c-1, a certain gap exists between the baffle 302b and the filter screen 201, a part of impurities cannot pass through the baffle 302b, when the bypass valve 100 is closed, the fixed column 302d is positioned at the second straight line segment 301c-2, the baffle 302b is attached to the surface of the filter screen 201, so that drilling fluid can better enter the motor, the wave section 301c-3 is provided with an M point and an N point, the M point and the N point are respectively located at the most convex position and the most concave position of the wave section 301c-3, in the closing process of the bypass valve 100, the fixed column 302d is alternately located at the M point and the N point, the baffle 302b continuously reciprocates, when the baffle 302b slides outwards, impurities in the first through groove 101a are pushed out, and then the first through groove 101a is cleaned, so that the first through groove 101a can be cleaned in the opening and closing process of the bypass valve 100, the first through groove 101a is prevented from being blocked, and when the bypass valve 100 is in an opening state, the baffle 302b can block part of impurities, and the filter screen 201 is prevented from being blocked.
The rest of the structure is the same as in embodiment 2.
Example 4
Referring to fig. 1 to 6, this embodiment differs from the above embodiment in that: the vibration part 400 comprises a fixed plate 401 arranged at the bottom of the conical net 202a, a sliding component 402 arranged on the fixed plate 401 and a collision piece 403 arranged on the valve core 103; wherein, the conflict piece 403 can conflict the subassembly 402 that slides and remove, the fixed multiunit fixed plate 401 that is equipped with in toper net 202a bottom, and multiunit fixed plate 401 is along toper net 202a circumference equidistance setting, it is equipped with the subassembly 402 to slide on the fixed plate 401, the case 103 top is equipped with the conflict piece 403 corresponding with the subassembly 402 that slides, when the case 103 slides downwards or upwards slides and resets, drive conflict piece 403 and remove, the subassembly 402 that slides conflict when the conflict piece 403 removes conflicts, constantly slide and reset after the subassembly 402 that slides conflict, make it strike fixed plate 401, fixed plate 401 is beaten the vibration, because fixed plate 401 and toper net 202a fixed connection, vibration transmission is given toper net 202a, toper net 202a surface vibration makes the impurity on its surface better follow second through 101b discharge.
Further, the sliding component 402 includes a limiting column 402a disposed in the fixed plate 401, a sliding plate 402b disposed at an end of the limiting column 402a, a striking block 402c disposed at a back surface of the sliding plate 402b, and a second spring 402d disposed at an outer side of the limiting column 402a, two sets of limiting columns 402a are slidably connected in the fixed plate 401, one end of the two sets of limiting columns 402a, which is close to an inner wall of the valve body 101, is fixedly provided with the sliding plate 402b, a plurality of sets of projections P are fixedly provided on a front surface of the sliding plate 402b, a plurality of sets of striking blocks 402c are fixedly provided on a back surface of the sliding plate 402b, a certain interval is provided between the plurality of sets of projections P, the surfaces of the projections P are equidistant, when the abutting member 403 moves up or down, the abutting member 403 abuts against the surface of the projections P, and then pushes the sliding plate 402b to slide, the striking block 402c strikes the fixed plate 401, so that the fixed plate 401 vibrates, the outer sides of the two sets of limiting columns 402a are sleeved with the second spring 402d, and when the sliding plate 402b is extruded and slides, the second spring 402d pushes the sliding plate 402b to reset, so that the sliding plate 402b moves reciprocally.
Further, the abutting member 403 includes a connecting rod 403a disposed on the valve core 103, and a corner block 403b disposed at the top end of the connecting rod 403a, a plurality of groups of connecting rods 403a are fixedly disposed at the top of the valve core 103, and a plurality of groups of connecting rods 403a are disposed at positions corresponding to the sliding plate 402b, the top of the connecting rod 403a is fixedly provided with a corner block 403b, a symmetrical inclined plane Q is disposed at the front end of the corner block 403b, when the second spring 402d is in a relaxed state, the inclined plane Q is attached to the surface of the bump P, so that the corner block 403b can always contact with the bump P in a moving process, when the connecting rod 403a moves downward, the end of the corner block 403b abuts against the surface of the bump P, so that the sliding plate 402b slides, the striking block 402c strikes the fixing plate 401, and the conical net 202a vibrates, thereby enabling impurities at the top of the conical net to fall down more quickly.
The rest of the structure is the same as in embodiment 3.
It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. A deviation rectifying method of a directional drill is characterized in that: comprising the steps of (a) a step of,
preparation: selecting an appropriate directional drilling machine and tool;
installing a drilling tool: installing a directional drilling machine, and adjusting the position and the direction of the directional drilling machine to align the directional drilling machine with a drilling target;
adjusting the drilling direction: according to specific conditions, rotation, deflection or other corresponding directional drilling methods are selected to be used, and when drilling fluid enters a directional drilling tool, an anti-blocking mechanism (S) filters the drilling fluid;
monitoring and correcting: monitoring the direction and the position of the drilling hole in real time by using monitoring equipment of the directional drilling system, identifying the deviation of the drilling hole according to the monitoring result, and carrying out necessary deviation correcting operation to ensure that the drilling hole is kept on a target path;
and (3) drilling: after a predetermined depth of borehole is reached or drilling tasks are completed, the drilling operation is stopped and the drill rod and drill bit are extracted.
2. A directional drilling filtration comprising an anti-blocking mechanism (S) according to claim 1, characterized in that: comprising the steps of (a) a step of,
a bypass valve (100) comprising a valve body (101), a valve housing (102) and a valve core (103) provided in the valve body (101), and a first spring (104) provided between the valve housing (102) and the valve core (103);
a filter element (200) comprising a filter screen (201) provided in a side wall of the valve body (101), a filter element (202) provided in the valve body (101), and a blocking assembly (203) provided on the valve core (103);
the valve body (101) is provided with a first through groove (101 a) corresponding to the filter screen (201), the valve body (101) is provided with a second through groove (101 b) corresponding to the filter element (202), and the filter element (202) is arranged above the valve core (103).
3. The directional drilling filtration structure of claim 2, wherein: the filter element (202) comprises a conical net (202 a) arranged on the inner wall of the valve body element (101), and a columnar net (202 b) arranged on the conical net (202 a);
the plugging assembly (203) comprises a connecting rod (203 a) arranged on the valve core (103) and a circular ring (203 b) arranged at the end part of the connecting rod (203 a);
wherein the connecting rod (203 a) penetrates the conical net (202 a).
4. A directional drilling filtration structure as recited in claim 3, wherein: the reciprocating component (300) comprises a fixed component (301) arranged on the valve core (103) and a driven component (302) arranged on the filter screen (201);
wherein the driven assembly (302) is capable of being guided by the fixed assembly (301).
5. The directional drilling filtration structure of claim 4, wherein: the fixed assembly (301) comprises a fixed rod (301 a) arranged on the valve core (103), a guide piece (301 b) arranged at the bottom of the fixed rod (301 a), and a guide groove (301 c) arranged in the guide piece (301 b);
wherein the driven component (302) is connected with the guide piece (301 b) through the guide groove (301 c).
6. The directional drilling filtration structure of claim 5, wherein: the driven component (302) comprises a sliding rod (302 a) which is slidingly arranged in the filter screen (201), a baffle plate (302 b) which is arranged at the end part of the sliding rod (302 a), a U-shaped frame (302 c) which is arranged at the other end of the sliding rod (302 a), and a fixing column (302 d) which is arranged in the U-shaped frame (302 c);
wherein the fixed column (302 d) is inserted into the guide groove (301 c).
7. The directional drilling filtration structure of claim 5 or 6, wherein: the guide groove (301 c) is provided with a straight line segment one (301 c-1) and a straight line segment two (301 c-2), and a wave segment (301 c-3) arranged between the straight line segment one (301 c-1) and the straight line segment two (301 c-2).
8. The directional drilling filtration structure of claim 7, wherein: the vibrating component (400) comprises a fixed plate (401) arranged at the bottom of the conical net (202 a), a sliding component (402) arranged on the fixed plate (401), and a collision piece (403) arranged on the valve core (103);
wherein the interference member (403) is capable of interfering with movement of the sliding assembly (402).
9. The directional drilling filtration structure of claim 8, wherein: the sliding assembly (402) comprises a limiting column (402 a) arranged in the fixed plate (401), a sliding plate (402 b) arranged at the end part of the limiting column (402 a), a striking block (402 c) arranged on the back surface of the sliding plate (402 b), and a second spring (402 d) arranged on the outer side of the limiting column (402 a).
10. The directional drilling filtration structure of claim 8 or 9, wherein: the abutting piece (403) comprises a connecting rod (403 a) arranged on the valve core (103) and an angle block (403 b) arranged at the top end of the connecting rod (403 a).
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| CN202410063161.9A CN117868686B (en) | 2024-01-16 | 2024-01-16 | Deviation correcting method of directional drill and filtering structure thereof |
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| CN202410063161.9A CN117868686B (en) | 2024-01-16 | 2024-01-16 | Deviation correcting method of directional drill and filtering structure thereof |
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| CN117868686B (en) | 2024-06-14 |
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