CN113445950A - Spacer adding mechanism with swing guide plate and coring device - Google Patents
Spacer adding mechanism with swing guide plate and coring device Download PDFInfo
- Publication number
- CN113445950A CN113445950A CN202110802723.3A CN202110802723A CN113445950A CN 113445950 A CN113445950 A CN 113445950A CN 202110802723 A CN202110802723 A CN 202110802723A CN 113445950 A CN113445950 A CN 113445950A
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- spacer
- guide plate
- swing guide
- adding mechanism
- cylinder
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 124
- 238000009434 installation Methods 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims description 14
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000013461 design Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 5
- 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
- 239000008187 granular material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000001174 ascending effect 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)
- Earth Drilling (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a spacer adding mechanism with a swing guide plate and a coring device, wherein the spacer adding mechanism comprises a base body and a spacer barrel which are connected, the base body is provided with a slideway and a spacer pushing arm, the outlet of the spacer barrel corresponds to the slideway, the base body is provided with an installation cavity, the spacer barrel is arranged in the installation cavity, and the slideway is arranged on the cavity wall of the installation cavity; the matrix is arranged along the axial direction of the underground 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 which is rotatably installed on the base body, so as to drive the spacer pushing arm to slide. The coring device comprises the spacer adding mechanism with the swing guide plate. The invention relates to the field of petroleum exploration and development, and provides a spacer adding mechanism with a swing guide plate and a coring device, which can reduce the space occupied by an underground instrument in the radial direction, can be directly driven by a hydraulic system of the instrument without other additional driving force, and can ensure that a spacer pushing arm can accurately slide along a slideway by adopting a double-swing guide plate movement structure.
Description
Technical Field
The invention relates to the field of petroleum exploration and development, in particular to a spacer adding mechanism with a swing guide plate and a coring device.
Background
To large granule wall of a well coring appearance, it can only use the degree of depth location rock core at coring in-process, can't clearly distinguish the corresponding relation of coring rock stratum and rock core, so research and development designed one kind at major diameter wall of a well coring appearance development in-process and added spacer mechanism, add the spacer after coring, can distinguish the concrete position of rock core at the target layer together with the degree of depth parameter, provide the basis reliably for later stage core analysis, reservoir analysis.
At present, the core that adopts adds spacer mechanism adopts the pneumatic cylinder to push into the core barrel with the spacer more, and this pneumatic cylinder needs to arrange the radial direction at the 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 swing guide plate, which is arranged on an underground instrument and comprises a base body and a spacer barrel which are connected, wherein the base body is provided with a slide way and a spacer pushing arm sliding along the slide way, the outlet of the spacer barrel corresponds to the slide way, the spacer pushing arm is used for pushing a spacer output by the spacer barrel to the inlet of a core storage barrel along the slide way, the base body is provided with an installation cavity, the spacer barrel is arranged in the installation cavity, and the slide way is arranged on the wall of the installation cavity; the substrate 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 rotatably installed on the swing guide plate on the base body and connected with the spacer pushing arm to drive the spacer pushing arm to slide.
The utility model provides a possible design, swing baffle with the pneumatic cylinder all is equipped with two and one-to-one and connects, two the swing baffle sets up the installation intracavity and be located the both sides of a spacer section of thick bamboo, the swing baffle set up to with spacer push arm and pneumatic cylinder are articulated.
A possible design, the base member includes releasable connection's main part and baffle, the main part encloses into the installation cavity, be equipped with the track on the baffle, form the slide, the baffle extends and corresponds in the one end of first direction the entry setting of storage heart bucket along the first direction.
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 is 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 underground instrument, one end of the piston rod extends into the hydraulic cavity, and the other end of the piston rod extends towards one side of the fixed part and is connected with the swing guide plate; a hydraulic oil path is arranged in the main body and used for allowing hydraulic oil to flow into and discharge from the hydraulic cavity.
One possible design further comprises an oil supply joint, wherein the oil supply joint is detachably connected with the fixing portion and communicated with the hydraulic oil way.
In one possible design, 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 joint.
According to a possible design, the swinging guide plate comprises a main plate and an L-shaped plate arranged on one side of the main plate, wherein the main plate faces away from the partition cylinder, the main plate and the L-shaped plate are enclosed to form a first groove, the main plate and the L-shaped plate are correspondingly provided with a second groove, and two ends of the rotating pin are inserted into the second groove.
The utility model provides a possible design, the spacer pushes away the arm and 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 articulatedly.
The baffle is provided with a first end portion, the first end portion extends out of the installation cavity and corresponds to the inlet of the core storage barrel, the first end portion is provided with a center hole for a core to pass through, and the first end portion is provided with a limiting structure for avoiding the situation that the spacer pushes the arm to interfere the core to push the core into the core storage barrel.
In one possible embodiment, the connecting part is provided with a rotary screw which penetrates the pivoting guide plate to form a rotary connection.
In one possible design, the base body further includes a mud guard disposed at an end of the main body remote from the spacer cylinder for blocking mud from entering the mounting cavity.
The base body further comprises a fixing block, the fixing block is detachably mounted on the spacer cylinder, and the mudguard is detachably mounted on the fixing block.
The embodiment of the invention provides a coring device which comprises the spacer adding mechanism with the swing guide plate.
The spacer adding mechanism provided by the embodiment of the invention is arranged along the axial direction of 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 research, development and popularization of large-particle borehole wall coring instruments.
The spacer adding mechanism provided by the embodiment of the invention is directly driven by a hydraulic system of an instrument without other additional driving force, and adopts a double-swing guide plate movement structure, so that the spacer push arm can be ensured to accurately slide along the slide way.
The spacer adding mechanism provided by the embodiment of the invention adopts a modular design, has a compact structure, is firm and reliable, is convenient to mount and dismount, has good testing performance through a laboratory, and completely meets the requirement of high-temperature operation in a well by driving the swing guide plate by the hydraulic cylinder.
Springs with different performances can be used in the spacer cylinder of the spacer adding mechanism provided by the embodiment of the invention to complete the function of adding thirty or sixty spacers. The device passes through ground test, can accomplish the spacer and add the function, the 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 embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of a spacer mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of the spacer mechanism and the core barrel assembly of FIG. 1;
FIG. 3 is a schematic exploded view of the spacer mechanism of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the spacer-adding 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 swinging guide plate 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 body, 2-spacer cylinder, 3-swing guide plate, 4-spacer push arm, 5-oil supply joint, 6-spacer, 7-baffle, 8-first end, 9-center hole, 10-cylinder body part, 11-connecting part, 12-fixing part, 13-core storage barrel, 14-connecting block, 15-second end, 16-third end, 17-rotating screw, 18-long hole, 19-rotating pin, 20-mounting cavity, 21-piston rod, 22-mudguard, 23-fixing block, 24-main body, 25-through hole, 26-spring, 27-push rod, 28-hydraulic cavity, 29-liquid inlet pipeline, 30-liquid outlet pipeline, 31-fixing hole, 32-main plate, 33-L-shaped plate, 34-first groove, 35-second groove, 36-first step surface, 37-first plane, 38-mounting hole, 39-rail, 40-third groove, 41-cambered surface, 42-second step surface, 43-slideway and 44-first rotating shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Referring to fig. 1 to 9, the spacer adding mechanism with a swing guide plate of the present invention can be installed on a downhole tool, and is used in cooperation with a core pushing rod and a core storage barrel 13 to play a role of adding a spacer 6 between adjacent cores to be obtained. The spacer adding mechanism comprises a base body 1 and a spacer barrel 2 which are connected, wherein the base body 1 is provided with a slide way 43 and a spacer pushing arm 4 which slides along the slide way 43, the outlet of the spacer barrel 2 corresponds to the slide way 43, and the spacer pushing arm 4 is used for pushing a spacer 6 output by the spacer barrel 2 to the inlet of the core barrel 13 along the slide way 43. The base body 1 is provided with a mounting cavity 20, the spacer cylinder 2 is arranged in the mounting cavity 20, the slideway 43 is arranged on the 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 which is rotatably arranged on the base body 1 so as to drive the spacer pushing arm 4 to slide. From this, this add spacer mechanism along instrument axial setting in the pit, the radial space that occupies of reducible instrument in the pit has very important meaning to the research and development and the popularization of large granule side of the well core instrument, and its hydraulic system who directly adopts instrument in the pit drives in addition, does not have other extra drive power to adopt 3 motion structure of two swing baffle, guarantee that the spacer pushes away arm 4 and slides along slide 43 accuracy.
As shown in fig. 1 to 9, the base body 1 comprises a detachable main body 24 and a baffle 7, the main body is annular and encloses the installation cavity 20, the baffle 7 is provided with a track 39 forming the slideway 43, the baffle 7 extends along a first direction, and one end of the baffle in the first direction is arranged corresponding to the inlet of the core barrel 13. The main body 24 includes a cylinder portion 10, a connecting portion 11 and a fixing portion 12, which are integrally formed, and the three are connected to form an annular shape, two ends of the cylinder portion 10 in the first direction form openings, one side of the opening is connected to 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 fixed part 12 through a screw, so that the end is positioned in the installation cavity 20, the other end is provided with a first end part 8, the first end part 8 extends out of the installation cavity 20 and corresponds to the inlet of the core storage barrel 13, the first end part 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 storage barrel 13.
As for the baffle 7, as shown in fig. 8, the baffle 7 is in an elongated shape, and the rail 39 protrudes from the surface of the baffle 7 and is disposed along the length direction of the baffle 7, and the cross section thereof is specifically rectangular, but is not limited thereto, and may be triangular, and the like, and correspondingly, the spacer pushing arm 4 is provided with a corresponding sliding groove 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 part 12 by a plurality of screws, and the baffle 7 is provided with a plurality of mounting holes 38.
As shown in fig. 1 to 4, the spacer tube 2 is located in the installation cavity 20, and is also located on the side close to the first end 8 of the baffle 7, in the same direction as the downhole tool. The spacer cylinder 2 is perpendicular to the baffle 7, the outlet of the spacer cylinder faces the baffle 7, the center hole 9 is staggered, and the space between the spacer cylinder 2 and the baffle 7 can be passed by the spacer 6 and the spacer push arm 4. A push rod 27 and a spring 26 are arranged in the diaphragm cylinder 2, wherein the spring 26 is arranged on the side of the push rod 27 far away from the outlet of the diaphragm cylinder 2, so that the push rod 27 can be pushed by the compressed spring 26 to move towards the outlet side, and the stacked diaphragms 6 are arranged on the side of the push rod 27 close to the outlet, so that the diaphragms 6 are pressed on the slide rails 43 by the push rod 27 and can be pushed away by the diaphragm push arms at any time. In addition, springs 26 with different performances can be used in the spacer cylinder 2, the spacer cylinder is suitable for spacers 6 with different numbers, and the spacer cylinder can have the functions of adding thirty spacers and sixty spacers, so that different requirements are met.
The main body 24 forms a first stepped surface 36 including a first plane 37 facing the baffle 7 side at the cylinder portion 10 and the connecting portion 11. The main body 24 is provided with two hydraulic cylinders, the hydraulic cylinders and the main body 24 are integrated, and the two hydraulic cylinders are positioned on the cylinder body part 10 and are double-acting hydraulic cylinders. Each hydraulic cylinder includes a hydraulic pressure chamber 28 and a piston rod 21, wherein the hydraulic pressure chamber 28 is disposed in the cylinder body portion 10, and an opening of the hydraulic pressure chamber 28 is on a first plane 37; the piston rod 21 is arranged along the length direction of the underground instrument, one end of the piston rod 21 extends into the hydraulic cavity 28, and the other end of the piston rod 21 is used as an output end and extends out of the opening, extends towards one side of the fixed part 12 and is connected with the swing guide plate 3. In addition, a hydraulic circuit is provided in the body 24 to allow hydraulic oil of a hydraulic system of the downhole tool to flow into or out of the hydraulic chamber 28, and specifically, the hydraulic circuit has an oil outlet and an oil inlet both on an end surface of the fixed portion 12 facing the core barrel. The hydraulic oil circuit 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 fixing part 12 to the cylinder part 10 and is divided into two branches which respectively extend to one ends of the two hydraulic cavities 28 far away from the fixing part 12; the outlet pipe 30 also extends from the outlet of the fixed portion 12 to the cylinder portion 10, and is also divided into two branches to extend to the ends of the two hydraulic chambers 28 close to the fixed portion 12. Thus, hydraulic oil introduced into hydraulic chamber 28 from inlet line 29 pushes piston rod 21 outward, and oil supplied from outlet line 30 to hydraulic chamber 28 retracts piston rod 21 into 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 adding 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, so that a hydraulic oil path is communicated with a hydraulic system; the third end 16 is far from the fixing part 12 and can be connected with the heart storage barrel 13 through a connecting block 14.
As regards the oscillating guide plate 3, this oscillating guide plate 3 is also provided with two, respectively two hydraulic cylinders, the two oscillating guide plates 3 being located in the mounting chamber 20 and on either side of the spacer cylinder 2. The swing guide plate 3 comprises a main plate 32 and an L-shaped plate 33 arranged on one side of the main plate 32, which faces away from the partition cylinder 2, wherein the main plate 32 is approximately triangular and has three corners, the L-shaped plate 33 is L-shaped, 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, correspondingly, the connecting part 11 of the main body 24 is provided with a fixing hole 31 and a rotating screw 17 fixed on the fixing hole, and the rotating screw 17 penetrates into the through hole 25 to form the rotating connection of the swinging guide plate 3 and the base body 1. An elongated hole 18 is formed at the other corner of the main plate 32, and correspondingly, first rotating shafts 44 are provided at both ends of the spacer pushing arm 4 in a second direction perpendicular to the first direction, and the first rotating shafts 44 are inserted into the elongated hole 18 to form a hinge joint of the swing guide 3 and the spacer pushing arm 4. In another 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 are respectively inserted into the second groove 35, so that the swinging guide plate 3 and the hydraulic cylinder are hinged.
Therefore, after the hydraulic system pushes the two piston rods 21 to synchronously extend, the swing guide plate 3 rotates around the rotating screw 17, and due to the matching of the strip hole 18 and the first rotating shaft 44, the spacer pushing arm 4 can be driven to move towards the first end part, so that the spacer 6 can be driven to move to the central hole, and the core entering the core storage barrel 13 and the core not entering the core storage barrel 13 can be separated by the spacer 6. At the same time, the extension distance of the piston rod 21 is limited, which is not enough to make the rotating pin 19 come out of the first groove 34, ensuring that the hydraulic cylinder keeps connected with the swing guide 3 in real time. Subsequently, the plunger can push against 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 to prepare for pushing the spacer 6 next time.
The spacer pushing arm 4 also has an arc 41 forming an arc groove for facilitating its pushing against the spacer 6. The first end portion 8 is provided with a limiting structure which can prevent the spacer pushing arm 4 from moving excessively to block the central hole to interfere with the core to push the core into the core storage barrel, and specifically, the limiting structure is arranged on the second step surface 42 facing the first rotating shaft 44 on the first end portion and can block the swing guide plate 3 from moving continuously towards the first end portion. In addition, base member 1 still includes fender 22 and fixed block 23, and fender 22 sets up in the one end of keeping away from spacer section of thick bamboo 2, and fixed block 23 demountable installation is on spacer section of thick bamboo 2, and fender 22 then demountable installation is on fixed block 23 to the uncovered of fender 22 shutoff installation cavity 20 one side blocks in mud gets into installation cavity 20, avoids mud to influence the action that swing baffle and spacer pushed away the arm. The fender 22 is notched to clear the fastening portion 12.
In some exemplary embodiments, the coring device includes the above-described septal mechanism with a swinging guide, and the core barrel of the coring device corresponds to the first end.
By combining the embodiment, the spacer adding mechanism provided by the embodiment of the invention is arranged along the axial direction of the underground instrument, so that the radial space occupied by the underground instrument can be reduced, and the spacer adding mechanism has very important significance on the research, development and popularization of large-particle borehole wall coring instruments. The spacer adding mechanism provided by the embodiment of the invention is directly driven by a hydraulic system of an instrument without other additional driving force, and adopts a double-swing guide plate movement structure, so that the spacer push arm can be ensured to accurately slide along the slide way. The spacer adding mechanism provided by the embodiment of the invention adopts a modular design, has a compact structure, is firm and reliable, is convenient to mount and dismount, has good testing performance through a laboratory, and completely meets the requirement of high-temperature operation in a well by driving the swing guide plate by the hydraulic cylinder. Springs with different performances can be used in the spacer cylinder of the spacer adding mechanism provided by the embodiment of the invention to complete the function of adding thirty or sixty spacers. The device passes through ground test, can accomplish the spacer and add the function, the dependable performance.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" structure ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the structures referred to have specific orientations, are configured and operated in specific orientations, and thus, are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although the embodiments of the present invention have been 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 (14)
1. A spacer adding mechanism with a swing guide plate is arranged on an underground instrument and comprises a base body and a spacer barrel which are connected, wherein the base body is provided with a slide way and a spacer pushing arm which slides along the slide way, the outlet of the spacer barrel corresponds to the slide way, and the spacer pushing arm is used for pushing the spacer output by the spacer barrel to the inlet of a core storage barrel along the slide way; the substrate 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 rotatably installed on the swing guide plate on the base body and connected with the spacer pushing arm to drive the spacer pushing arm to slide.
2. The spacer adding mechanism with the swing guide plate as claimed in claim 1, wherein the swing guide plate and the hydraulic cylinder are provided with two and are connected in one-to-one correspondence, the two swing guide plates are arranged in the installation cavity and are positioned at two sides of the spacer cylinder, and the swing guide plates are arranged to be hinged with the spacer pushing arm and the hydraulic cylinder.
3. The spacer adding mechanism with the swing guide plate according to claim 2, wherein the base body comprises a main body and a baffle plate, the main body and the baffle plate are detachably connected, the main body encloses the installation cavity, the baffle plate is provided with a track to form the slideway, the baffle plate extends along a first direction, and one end of the baffle plate in the first direction is arranged corresponding to the inlet of the core storage barrel.
4. The spacer adding mechanism with the swing guide plate as claimed in claim 3, wherein the main body comprises an integrated cylinder portion, a connecting portion and a fixing portion, the cylinder portion is provided in a U shape, the cylinder portion is connected with two ends of the fixing portion through the two connecting portions, the cylinder portion, the connecting portion and the fixing portion are enclosed into a ring shape, and the baffle plate is connected with the fixing portion.
5. The spacer adding mechanism with the swing guide plate as claimed in claim 4, wherein the hydraulic cylinder comprises a hydraulic chamber and a piston rod, the hydraulic chamber is arranged in the cylinder body, 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 of the piston rod extends to one side of the fixed part and is connected with the swing guide plate; a hydraulic oil path is arranged in the main body and used for allowing hydraulic oil to flow into and discharge from the hydraulic cavity.
6. The spacer-adding mechanism with a swing guide plate according to claim 5, further comprising an oil supply joint, wherein the oil supply joint is detachably connected with the fixed part and is communicated with the hydraulic oil path.
7. The spacer adding mechanism with a swing guide plate as claimed in claim 2, wherein 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 joint.
8. The spacer adding mechanism with the swing guide plate according to claim 7, wherein the swing guide plate comprises a main plate and an L-shaped plate arranged on a side of the main plate opposite to the spacer cylinder, the main plate and the L-shaped plate enclose the first groove, the main plate and the L-shaped plate are correspondingly provided with second grooves, and two ends of the rotating pin are inserted into the second grooves.
9. The spacer adding mechanism with the swing guide plate as claimed in claim 2, wherein the spacer pushing arm is provided with a first rotating shaft at both ends in the second direction, the swing guide plate is provided with a long hole, and the first rotating shaft is inserted into the long hole to form a hinge joint.
10. The spacer adding mechanism with the swing guide plate as claimed in claim 3, wherein the baffle is provided with a first end portion, the first end portion extends out of the installation cavity and is arranged corresponding to the inlet of the core storage 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 the core to push into the core storage barrel.
11. The spacer adding mechanism with a swing guide plate as claimed in claim 4, wherein the connecting portion is provided with a rotating screw which penetrates through the swing guide plate to form a rotating connection.
12. The spacer-adding mechanism with a swinging guide plate as claimed in claim 4, wherein the base further comprises a mudguard disposed at an end of the main body away from the spacer cylinder for blocking slurry from entering the mounting chamber.
13. The spacer-adding mechanism with a swing guide of claim 12, wherein the base further comprises a fixing block, the fixing block is detachably mounted on the spacer cylinder, and the mudguard is configured to be detachably mounted on the fixing block.
14. A coring apparatus, comprising a spacer-adding mechanism with a swinging guide as claimed in any one of claims 1 to 13.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN113445950A true CN113445950A (en) | 2021-09-28 |
| CN113445950B CN113445950B (en) | 2023-07-07 |
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Citations (10)
| 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 |
| US20060081398A1 (en) * | 2004-10-20 | 2006-04-20 | Abbas Arian | Apparatus and method for hard rock sidewall coring of a borehole |
| US20100282516A1 (en) * | 2007-11-02 | 2010-11-11 | Buchanan Steve E | Formation coring apparatus and methods |
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| CN113073955A (en) * | 2021-03-26 | 2021-07-06 | 中国海洋石油集团有限公司 | Core distinguishing module and downhole instrument suitable for slim hole |
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| US20100282516A1 (en) * | 2007-11-02 | 2010-11-11 | Buchanan Steve E | Formation coring apparatus and methods |
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