CN113445950B - Spacer adding mechanism with swinging guide plate and coring device - Google Patents
Spacer adding mechanism with swinging guide plate and coring device Download PDFInfo
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- CN113445950B CN113445950B CN202110802723.3A CN202110802723A CN113445950B CN 113445950 B CN113445950 B CN 113445950B CN 202110802723 A CN202110802723 A CN 202110802723A CN 113445950 B CN113445950 B CN 113445950B
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 126
- 230000007246 mechanism Effects 0.000 title claims abstract description 44
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 13
- 239000010720 hydraulic oil Substances 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a spacer adding mechanism with a swinging guide plate and a coring device, wherein the spacer adding mechanism comprises a base body and a spacer tube which are connected, the base body is provided with a slideway and a spacer pushing arm, an outlet of the spacer tube corresponds to the slideway, the base body is provided with a mounting cavity, the spacer tube is arranged in the mounting cavity, and the slideway is arranged on a cavity wall of the mounting cavity; the matrix is arranged along the axial direction of the downhole instrument; the base body is provided with a hydraulic cylinder, and the output end of the hydraulic cylinder is connected with the spacer pushing arm through a swing guide plate rotatably arranged on the base body and is used for driving the spacer pushing arm to slide. The coring device comprises the spacer adding mechanism with the swinging guide plate. The invention relates to the field of petroleum exploration and development, and provides a spacer adding mechanism with a swinging guide plate and a coring device, which can reduce the space occupied by an underground instrument in the radial direction, directly adopts a hydraulic system of the instrument for driving, has no other extra driving force, adopts a double-swinging guide plate movement structure, and ensures that a spacer pushing arm slides accurately along a slideway.
Description
Technical Field
The invention relates to the field of petroleum exploration and development, in particular to a spacer mechanism with a swinging guide plate and a coring device.
Background
Aiming at a large-particle side-wall coring instrument, a core can be positioned only by depth in the coring process, and the corresponding relation between a coring rock stratum and the core cannot be clearly distinguished, so that a spacer adding mechanism is researched and designed in the development process of the large-diameter side-wall coring instrument, and a spacer is added after coring, so that the specific position of the core in a target layer can be distinguished along with depth parameters, and reliable basis is provided for later-stage core analysis and reservoir analysis.
At present, the core that adopts adds spacer mechanism and adopts the pneumatic cylinder to push into the rock core section of thick bamboo with the spacer more, and this pneumatic cylinder needs to be arranged in the radial direction of instrument, and this kind of structure occupation space is great, is unfavorable for the structural design of other parts of instrument.
Disclosure of Invention
The embodiment of the invention provides a spacer adding mechanism with a swinging guide plate, which is arranged on an underground instrument, wherein the spacer adding mechanism comprises a base body and a spacer cylinder which are connected, the base body is provided with a slideway and a spacer pushing arm which slides along the slideway, an outlet of the spacer cylinder corresponds to the slideway, the spacer pushing arm is used for pushing a spacer output by the spacer cylinder to an inlet of a core storage barrel along the slideway, the base body is provided with a mounting cavity, the spacer cylinder is arranged in the mounting cavity, and the slideway is arranged on a cavity wall of the mounting cavity; the matrix is arranged along the axial direction of the downhole instrument; the base body is provided with a hydraulic cylinder, and the output end of the hydraulic cylinder is connected with the spacer pushing arm through a swing guide plate rotatably arranged on the base body and is used for driving the spacer pushing arm to slide.
One possible design, swing baffle with the pneumatic cylinder all is equipped with two and one-to-one connection, two swing baffle sets up in the installation cavity and be located the both sides of spacer section of thick bamboo, the swing baffle set up with spacer pushing arm and pneumatic cylinder are articulated.
One possible design, the base member includes detachable connection's main part and baffle, the main part encloses the installation cavity, be equipped with the track on the baffle, form the slide, the baffle extends along the first direction and at the first direction one end corresponds the entry setting of storing up the heart bucket.
One possible design, the main part includes integrative cylinder body portion, connecting portion and fixed part, cylinder body portion sets up to the U type, cylinder body portion pass through two connecting portion with the both ends of fixed part are connected, cylinder body portion, connecting portion and fixed part enclose into the annular, the baffle with the fixed part is connected.
One possible design is that the hydraulic cylinder comprises a hydraulic cavity and a piston rod, the hydraulic cavity is arranged in the cylinder body part, the piston rod is arranged along the length direction of the downhole instrument, one end of the piston rod extends into the hydraulic cavity, and the other end extends to one side of the fixed part and is connected with the swing guide plate; the main body is internally provided with a hydraulic oil way for allowing hydraulic oil to flow into and drain out of the hydraulic cavity.
One possible design further includes an oil supply joint provided in detachable connection with the fixing portion and communicating with the hydraulic oil passage.
One possible design, the output of pneumatic cylinder is equipped with the swivel pin, the edge of swing baffle is equipped with first recess, the swivel pin sets up in the first recess forms the hinge.
One possible design, swing baffle includes the mainboard and sets up the mainboard dorsad the L template of one side of spacer section of thick bamboo, mainboard and L template enclose into first recess, mainboard and L template correspond and are equipped with the second recess, the both ends of swivel pin insert in the second recess.
One possible design, spacer arm is equipped with first pivot at the ascending both ends of second direction, be equipped with rectangular hole on the swing baffle, first pivot inserts rectangular downthehole, form the hinge.
One possible design, the baffle is equipped with first tip, first tip stretches out the installation cavity just corresponds store up the entry setting of heart bucket, first tip is equipped with the centre bore that is used for the rock core to pass through, first tip is equipped with limit structure, is used for avoiding the spacer pushing arm interferes the rock core and pushes into and store up heart bucket.
One possible design is that the connection is provided with a rotation screw which penetrates the wobble plate, forming a rotational connection.
One possible design, the base further includes a mud guard disposed at an end of the body remote from the spacer tube for blocking mud from entering the mounting cavity.
One possible design, the base further includes a fixed block detachably mounted on the spacer tube, and the fender is configured to be detachably mounted on the fixed block.
The embodiment of the invention provides a coring device, which comprises the spacer adding mechanism with the swinging guide plate.
The spacer adding mechanism provided by the embodiment of the invention is axially arranged along the underground instrument, so that the space occupied by the underground instrument in the radial direction can be reduced, and the spacer adding mechanism has very important significance for the research and development and popularization of large-particle side-wall coring instruments.
The spacer adding mechanism provided by the embodiment of the invention is directly driven by a hydraulic system of an instrument, has no other extra driving force, and adopts a double-swing guide plate movement structure to ensure that the spacer pushing arm accurately slides along the slideway.
The spacer adding mechanism provided by the embodiment of the invention adopts a modularized design, is compact in structure, firm and reliable, is convenient to install and disassemble, has good testing performance through a laboratory, and can completely meet the requirement of underground high-temperature operation due to the fact that the hydraulic cylinder drives the swing guide plate.
Springs of different properties can be used in the spacer tube of the spacer adding mechanism of the embodiment of the invention to fulfill the functions of adding thirty and sixty spacers. The device passes through ground test, can accomplish the spacer and add the function, dependable performance.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and do not limit the invention.
FIG. 1 is a schematic illustration of a septa addition mechanism in accordance with an embodiment of the present disclosure;
FIG. 2 is a schematic view of the spacer mechanism and core barrel of FIG. 1;
FIG. 3 is a schematic view of the spacer-adding mechanism of FIG. 1 in an exploded view;
FIG. 4 is a schematic cross-sectional view of the septa addition mechanism of FIG. 1;
FIG. 5 is a first schematic view of the body of FIG. 3;
FIG. 6 is a second schematic view of the body of FIG. 3;
FIG. 7 is a schematic view of the swing guide of FIG. 1;
FIG. 8 is a schematic view of the baffle of FIG. 1;
fig. 9 is a schematic view of the spacer pushing arm of fig. 1.
Reference numerals: 1-base, 2-spacer cylinder, 3-swing guide, 4-spacer arm, 5-oil supply joint, 6-spacer, 7-baffle, 8-first end, 9-center hole, 10-cylinder, 11-connection, 12-fixed part, 13-core barrel, 14-connection, 15-second end, 16-third end, 17-rotation screw, 18-elongated hole, 19-rotation pin, 20-mounting cavity, 21-piston rod, 22-fender, 23-fixed block, 24-main body, 25-through hole, 26-spring, 27-push rod, 28-hydraulic cavity, 29-liquid inlet pipe, 30-liquid outlet pipe, 31-fixed hole, 32-main plate, 33-L template, 34-first groove, 35-second groove, 36-first step surface, 37-first plane, 38-mounting hole, 39-track, 40-third groove, 41-cambered surface, 42-second step surface, 43-slideway, 44-first spindle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.
Referring to fig. 1 to 9, the spacer adding mechanism with the swing guide plate of the present invention can be installed on a downhole tool, and cooperates with a core pushing rod and a core barrel 13 to serve as a spacer adding mechanism 6 between adjacent cores. The spacer adding mechanism comprises a base body 1 and a spacer cylinder 2 which are connected, wherein the base body 1 is provided with a slide way 43 and a spacer pushing arm 4 sliding along the slide way 43, the outlet of the spacer cylinder 2 corresponds to the slide way 43, and the spacer pushing arm 4 is used for pushing a spacer 6 output by the spacer cylinder 2 to the inlet of a core storage barrel 13 along the slide way 43. The base body 1 is provided with a mounting cavity 20, the spacer tube 2 is arranged in the mounting cavity 20, the slide 43 is arranged on the cavity wall of the mounting cavity 20, and the base body 1 is arranged along the axial direction of the downhole instrument. In addition, a hydraulic cylinder is arranged on the base body 1, and the output end of the hydraulic cylinder is connected with the spacer pushing arm 4 through a swing guide plate 3 rotatably arranged on the base body 1 so as to drive the spacer pushing arm 4 to slide. Therefore, the spacer adding mechanism is axially arranged along the underground instrument, the space occupied by the underground instrument in the radial direction can be reduced, the spacer adding mechanism has very important significance for the research and development and popularization of the large-particle side-wall coring instrument, the spacer adding mechanism is directly driven by a hydraulic system of the underground instrument, no other extra driving force is generated, a double-swing guide plate 3 motion structure is adopted, and the spacer pushing arm 4 is ensured to precisely slide along the slideway 43.
As shown in fig. 1 to 9, the base 1 includes a detachably connected main body 24 and a baffle 7, the main body is annular and encloses the installation cavity 20, a track 39 is provided on the baffle 7 to form the slideway 43, and one end of the baffle 7 extending along the first direction is arranged corresponding to the inlet of the core barrel 13. The main body 24 includes an integrally formed cylinder portion 10, a connecting portion 11 and a fixing portion 12, which are connected to form a ring shape, and are formed with openings at two ends in a first direction, and the cylinder portion 10 is U-shaped, and one side of the opening is connected with two ends of the fixing portion 12 through the two connecting portions 11. One end of the baffle 7 in the first direction is connected with the fixing part 12 through a screw, so that the end is positioned in the mounting cavity 20, the other end is provided with a first end 8, the first end 8 extends out of the mounting cavity 20 and corresponds to the inlet of the core barrel 13, the first end 8 is provided with a central hole 9 for the core to pass through, and the central hole 9 is consistent with the inner diameter of the core barrel 13.
In the case of the shutter 7, as shown in fig. 8, the shutter 7 is in a long strip shape, and the rail 39 protrudes from the surface of the shutter 7 and is arranged along the length direction of the shutter 7, and the section of the rail is particularly rectangular, but the rail is not limited thereto, and may be triangular, etc., and the spacer pushing arm 4 is correspondingly required to be provided with a corresponding chute 45 corresponding to the rail 39, so that the rail 39 can guide the sliding thereof. The baffle 7 can be fixed on the fixing portion 12 by a plurality of screws, and the baffle 7 needs to be provided with a plurality of mounting holes 38.
In the case of the spacer tube 2, as shown in fig. 1-4, the spacer tube 2 is positioned within the mounting cavity 20, also on the side of the first end 8 of the baffle 7, coincident with the length of the tool. The spacer tube 2 is perpendicular to the baffle 7 with its outlet facing the baffle 7 and offset from the central aperture 9, and the spacing between the spacer tube 2 and the baffle 7 accommodates the passage of the spacer 6 and the spacer pushing arm 4. A push rod 27 and a spring 26 are arranged in the spacer tube 2, wherein the spring 26 is positioned on one side of the push rod 27 far away from the outlet of the spacer tube 2, so that the pressed spring 26 can push the push rod 27 to move towards the outlet side, and the stacked spacers 6 are positioned on one side of the push rod 27 close to the outlet, so that the spacers 6 are extruded on the slideway 43 by the push rod 27 and can be pushed away by the spacer pushing arm at any time. In addition, springs 26 of different properties can be used in the spacer tube 2 to accommodate different numbers of spacers 6, and can have the functions of adding thirty and sixty spacers to meet different requirements.
The main body 24 forms a first stepped surface 36 at the cylinder portion 10 and the connecting portion 11, the first stepped surface including a first flat surface 37 facing the baffle 7 side. The main body 24 is provided with two hydraulic cylinders which are integrated with the main body 24, and the two hydraulic cylinders are positioned on the cylinder body part 10 and are two-way hydraulic cylinders. Each hydraulic cylinder comprises a hydraulic chamber 28 and a piston rod 21, wherein the hydraulic chamber 28 is arranged in the cylinder part 10 and the opening of the hydraulic chamber 28 is located on a first plane 37; the piston rod 21 is disposed along the length of the downhole tool, one end of the piston rod 21 extends into the hydraulic chamber 28, the other end thereof serves as an output end, extends out of the opening, extends toward the fixed portion 12, and is connected to the swing guide 3. In addition, a hydraulic oil path is provided in the main body 24, so that hydraulic oil of the hydraulic system of the downhole tool can flow into or out of the hydraulic chamber 28, in particular, the hydraulic oil path has an oil outlet and an oil inlet, which are both located on the end face of the fixing portion 12 facing the core barrel. The hydraulic oil way comprises a liquid inlet pipeline 29 and a liquid outlet pipeline 30, wherein the liquid inlet pipeline 29 extends from an oil supply port of the fixed part 12 to the cylinder part 10 and is divided into two branches which extend to one ends of the two hydraulic cavities 28 far away from the fixed part 12 respectively; the liquid outlet pipe 30 also extends from the oil outlet of the fixed portion 12 to the cylinder portion 10, and is divided into two branches, which extend to one ends of the two hydraulic chambers 28 near the fixed portion 12, respectively. Thus, hydraulic oil introduced into the hydraulic chamber 28 through the inlet line 29 pushes the piston rod 21 to extend outward, and oil supplied from the outlet line 30 to the hydraulic chamber 28 causes the piston rod 21 to retract into the hydraulic chamber 28. And the hydraulic system of the downhole tool can synchronously supply oil to the two hydraulic cavities 28, so that the two piston rods 21 synchronously act. The spacer mechanism is also provided with an oil supply joint 5, the oil supply joint is provided with a second end part 15 and a third end part 16, the second end part 15 can be connected with the fixed part 12 and is communicated with an oil supply port and an oil outlet port, so that a hydraulic oil way is communicated with a hydraulic system; the third end 16 is remote from the fixed portion 12 and is connectable to the above-mentioned core barrel 13 via a connection block 14.
In the case of the oscillating guide 3, two oscillating guides 3 are also provided, corresponding to the two hydraulic cylinders, two oscillating guides 3 being located in the installation cavity 20 and on either side of the spacer tube 2. The swing guide 3 includes a main plate 32 and an L-shaped plate 33 provided on a side of the main plate 32 facing away from the spacer tube 2, the main plate 32 is in a plate shape of approximately triangular shape having three corners, the L-shaped plate 33 is in an L-shape, and the main plate 32 and the L-shaped plate 33 enclose a first groove 34. One corner of the main plate 32 is provided with a through hole 25, and correspondingly, the connecting part 11 of the main body 24 is provided with a fixing hole 31 and a rotary screw 17 fixed on the fixing hole, and the rotary screw 17 penetrates into the through hole 25 to form a rotary connection between the swinging guide plate 3 and the base body 1. At the other corner of the main plate 32, a long hole 18 is provided, and correspondingly, two ends of the spacer pushing arm 4 in the second direction are provided with first rotating shafts 44, the second direction is perpendicular to the first direction, and the first rotating shafts 44 can be inserted into the long hole 18 to form the hinge joint of the swing guide plate 3 and the spacer pushing arm 4. At the other corner of the main plate 32, the main plate 32 and the L-shaped plate 33 enclose a first groove 34, and the main plate 32 and the L-shaped plate 33 are correspondingly provided with a second groove 35, the output end of the hydraulic cylinder is provided with a rotating pin 19, the rotating pin 19 is positioned in the first groove 34, and two ends of the rotating pin 19 are respectively inserted into the second groove 35, so that the swing guide plate 3 and the hydraulic cylinder are hinged.
Thus, after the hydraulic system pushes the two piston rods 21 to extend synchronously, the swing guide plate 3 rotates around the rotating screw 17, and the cooperation of the long strip hole 18 and the first rotating shaft 44 can cause the spacer pushing arm 4 to move towards the first end, so that the spacer 6 can be pushed to move to the center hole, and the spacer 6 can separate the core entering the core barrel 13 from the core not entering the core barrel 13. At the same time, the limited extension distance of the piston rod 21 is insufficient to enable the rotating pin 19 to be separated from the first groove 34, so that the hydraulic cylinder and the swing guide plate 3 are kept connected in real time. Subsequently, the ejector pins can eject the core, with the septum 6 also being pushed into the core barrel 13. When the hydraulic system pushes the two piston rods 21 to retract synchronously, the swing guide plate 3 rotates reversely, so that the spacer pushing arm 4 moves to the side far away from the first end part to prepare for pushing the spacer 6 next time.
The spacer pushing arm 4 also has an arcuate surface 41 forming an arcuate recess for facilitating its pushing against the spacer 6. The first end 8 has a limiting structure, which can prevent the spacer pushing arm 4 from transitionally moving to block the central hole from interfering the core pushing into the core barrel, and specifically, the limiting structure is configured as a second step surface 42 facing the first rotating shaft 44 on the first end, and can prevent the swing guide plate 3 from continuously moving toward the first end. In addition, the base body 1 further comprises a mud guard 22 and a fixed block 23, wherein the mud guard 22 is arranged at one end far away from the spacer cylinder 2, the fixed block 23 is detachably arranged on the spacer cylinder 2, and the mud guard 22 is detachably arranged on the fixed block 23, so that the mud guard 22 seals an opening at one side of the mounting cavity 20, mud is prevented from entering the mounting cavity 20, and the mud is prevented from affecting the action of the swing guide plate and the spacer pushing arm. The fender 22 is provided with a notch to avoid the fixing portion 12.
In some exemplary embodiments, the coring device includes a spacer-adding mechanism with a swinging guide as described above, and the core barrel of the coring device corresponds to the first end.
By combining the embodiments, the spacer adding mechanism provided by the embodiment of the invention is axially arranged along the underground instrument, so that the space occupied by the underground instrument in the radial direction can be reduced, and the spacer adding mechanism has very important significance for the research and development and popularization of large-particle side-wall coring instruments. The spacer adding mechanism provided by the embodiment of the invention is directly driven by a hydraulic system of an instrument, has no other extra driving force, and adopts a double-swing guide plate movement structure to ensure that the spacer pushing arm accurately slides along the slideway. The spacer adding mechanism provided by the embodiment of the invention adopts a modularized design, is compact in structure, firm and reliable, is convenient to install and disassemble, has good testing performance through a laboratory, and can completely meet the requirement of underground high-temperature operation due to the fact that the hydraulic cylinder drives the swing guide plate. Springs of different properties can be used in the spacer tube of the spacer adding mechanism of the embodiment of the invention to fulfill the functions of adding thirty and sixty spacers. The device passes through ground test, can accomplish the spacer and add the function, dependable performance.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "one side", "the other side", "one end", "the other end", "the side", "the opposite", "four corners", "the periphery", "the" mouth "character structure", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus are not to be construed as limiting the present invention.
In the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," "assembled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, and may also be in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Although the embodiments of the present invention are described above, the embodiments are only used for facilitating understanding of the present invention, and are not intended to limit the present invention. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is defined by the appended claims.
Claims (10)
1. The spacer adding mechanism with the swinging guide plate is arranged on an underground instrument and comprises a base body and a spacer tube which are connected, wherein the base body is provided with a slide way and a spacer pushing arm which slides along the slide way, an outlet of the spacer tube corresponds to the slide way and is used for pushing a spacer output by the spacer tube to an inlet of a core storage barrel along the slide way by the spacer pushing arm; the matrix is arranged along the axial direction of the downhole instrument; the base body is provided with a hydraulic cylinder, and the output end of the hydraulic cylinder is connected with the spacer pushing arm through a swing guide plate rotatably arranged on the base body and used for driving the spacer pushing arm to slide;
the swing guide plates and the hydraulic cylinders are respectively provided with two swing guide plates which are connected in a one-to-one correspondence manner, the two swing guide plates are arranged in the mounting cavity and are positioned at two sides of the spacer cylinder, and the swing guide plates are hinged with the spacer pushing arms and the hydraulic cylinders;
the base body comprises a main body and a baffle which are detachably connected, the main body encloses the mounting cavity, a track is arranged on the baffle to form the slideway, and one end of the baffle extending along the first direction is arranged corresponding to the inlet of the core barrel;
the output end of the hydraulic cylinder is provided with a rotating pin, the edge of the swing guide plate is provided with a first groove, and the rotating pin is arranged in the first groove to form a hinge;
the swing guide plate comprises a main plate and an L-shaped plate arranged on one side of the main plate, which is opposite to the spacer tube, wherein the main plate and the L-shaped plate enclose a first groove, a second groove is correspondingly formed in the main plate and the L-shaped plate, and two ends of the rotating pin are inserted into the second groove.
2. The spacer adding mechanism with a swing guide plate according to claim 1, wherein the main body comprises a cylinder part, a connecting part and a fixing part which are integrated, the cylinder part is arranged in a U shape, the cylinder part is connected with two ends of the fixing part through two connecting parts, the cylinder part, the connecting part and the fixing part are enclosed into a ring shape, and the baffle is connected with the fixing part.
3. The spacer adding mechanism with a swing guide plate according to claim 2, wherein the hydraulic cylinder comprises a hydraulic chamber and a piston rod, the hydraulic chamber is arranged in the cylinder body part, the piston rod is arranged along the length direction of the downhole instrument, one end of the piston rod extends into the hydraulic chamber, and the other end extends to the side of the fixed part and is connected with the swing guide plate; the main body is internally provided with a hydraulic oil way for allowing hydraulic oil to flow into and drain out of the hydraulic cavity.
4. The spacer-adding mechanism with a swing guide as claimed in claim 3, further comprising an oil supply joint provided so as to be detachably connected to the fixed portion and communicate with the hydraulic oil passage.
5. The spacer adding mechanism with a swinging guide plate according to claim 1, wherein the two ends of the spacer pushing arm in the second direction are provided with first rotating shafts, the swinging guide plate is provided with strip holes, and the first rotating shafts are inserted into the strip holes to form hinge joints.
6. The spacer adding mechanism with the swinging guide plate according to claim 1, wherein the baffle is provided with a first end portion, the first end portion extends out of the mounting cavity and is arranged corresponding to the inlet of the core barrel, the first end portion is provided with a central hole for a core to pass through, and the first end portion is provided with a limiting structure for preventing the spacer pushing arm from interfering with the core to push into the core barrel.
7. The spacer mechanism with swing guide as claimed in claim 2, wherein the connection portion is provided with a rotation screw penetrating the swing guide to form a rotational connection.
8. The spacer-adding mechanism with oscillating guide as defined in claim 2, wherein said base further comprises a mud guard disposed at an end of said body remote from said spacer cylinder for blocking mud from entering said mounting cavity.
9. The spacer-adding mechanism with swinging guide as claimed in claim 8, wherein said base further comprises a fixed block detachably mounted to said spacer cylinder, said fender being configured to be detachably mounted to said fixed block.
10. A coring device comprising a spacer mechanism with a rocking guide as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110802723.3A CN113445950B (en) | 2021-07-15 | 2021-07-15 | Spacer adding mechanism with swinging guide plate and coring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110802723.3A CN113445950B (en) | 2021-07-15 | 2021-07-15 | Spacer adding mechanism with swinging guide plate and coring device |
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| Publication Number | Publication Date |
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| CN113445950A CN113445950A (en) | 2021-09-28 |
| CN113445950B true CN113445950B (en) | 2023-07-07 |
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| CN202110802723.3A Active CN113445950B (en) | 2021-07-15 | 2021-07-15 | Spacer adding mechanism with swinging guide plate and coring device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4714119A (en) * | 1985-10-25 | 1987-12-22 | Schlumberger Technology Corporation | Apparatus for hard rock sidewall coring a borehole |
| CN111397947A (en) * | 2020-03-12 | 2020-07-10 | 中国海洋石油集团有限公司 | Core detection device of coring apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7347284B2 (en) * | 2004-10-20 | 2008-03-25 | Halliburton Energy Services, Inc. | Apparatus and method for hard rock sidewall coring of a borehole |
| US8550184B2 (en) * | 2007-11-02 | 2013-10-08 | Schlumberger Technology Corporation | Formation coring apparatus and methods |
| CA2707236C (en) * | 2009-06-15 | 2014-10-28 | Schlumberger Canada Limited | Formation coring apparatus and methods |
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