CN113020096B - Treatment equipment for well-outlet PDC drill bit - Google Patents
Treatment equipment for well-outlet PDC drill bit Download PDFInfo
- Publication number
- CN113020096B CN113020096B CN202110598954.7A CN202110598954A CN113020096B CN 113020096 B CN113020096 B CN 113020096B CN 202110598954 A CN202110598954 A CN 202110598954A CN 113020096 B CN113020096 B CN 113020096B
- Authority
- CN
- China
- Prior art keywords
- drill bit
- treatment
- barrel
- treatment barrel
- mud
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 27
- 238000011068 loading method Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000007790 scraping Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 abstract description 55
- 238000005553 drilling Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 13
- 239000012530 fluid Substances 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 210000000664 rectum Anatomy 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/041—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/102—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration with means for agitating the liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a processing device for a well-outlet PDC drill bit, which comprises a box body, wherein a rotary table is arranged on the upper surface of the box body, the rotary table is driven by a driving assembly to rotate, the rotary table comprises a square step surface, and the step surface is used for bearing a drill bit loading and unloading device; the device also comprises a treatment barrel positioned below the turntable, the treatment barrel is in dynamic sealing fit with the turntable and is fixed with the box body, and the bottom of the treatment barrel is provided with a discharge valve; the treatment barrel is used for containing a treatment agent. The invention provides a treatment device for a PDC drill bit for going out of a well, which aims to solve the problem that a large amount of manpower is consumed for stripping mud-coated rock debris coated on the drill bit in the prior art, and achieve the purposes of reducing the stripping difficulty of the mud-coated rock debris of the PDC drill bit and reducing the manpower consumption.
Description
Technical Field
The invention relates to the field of petroleum drilling, in particular to a processing device for a well-outlet PDC drill bit.
Background
PDC bits, i.e., polycrystalline diamond compact bits, are formed by cutting small blocks of polycrystalline diamond into a bit body and attaching or sintering the small blocks to the bit body. In the field of petroleum drilling, the PDC drill bit is suitable for drilling soft to medium hard strata, and the strata are strata which are easy to induce bit balling, so that the probability of the phenomenon of balling after the PDC drill bit goes out of a well in a large number of field construction processes is far greater than that of a roller bit. For PDC drill bits with the mud pocket phenomenon, field drillers need to manually strip the mud pocket rock debris coated on the drill bits, but the mud pocket rock debris is cemented and compacted in a well, hard in texture and strong in adhesion, the stripping process consumes manpower, and a good solution is not provided in the prior art. After the PDC drill bit is taken out of the well and disassembled, if the bottom of the PDC drill bit is placed downwards, the part which is most easily attached with the mud-wrapped rock debris faces the ground and is very difficult to clean; if the bottom of the bit is placed upwards, although the bit is easy to clean manually, the bit needs to be inverted by grounding the screw thread end, and as is known, the bit has a smaller outer diameter of the screw thread end, and is unstable in the inverted state, so that the bit is easy to topple and injure surrounding workers, especially for the PDC bits with the size of 12-1/2 ″, the bit has extremely high quality, and the workers can be seriously injured once being injured. In addition, for PDC drill bits, each drill bit leaves the factory and is equipped with a drill bit loading and unloading device which is square and can be clamped outside the drill bit to be matched.
Disclosure of Invention
The invention provides a treatment device for a PDC drill bit for going out of a well, which aims to solve the problem that a large amount of manpower is consumed for stripping mud-coated rock debris coated on the drill bit in the prior art, and achieve the purposes of reducing the stripping difficulty of the mud-coated rock debris of the PDC drill bit and reducing the manpower consumption.
The invention is realized by the following technical scheme:
the processing equipment for the well-outlet PDC drill bit comprises a box body, wherein a rotary table is arranged on the upper surface of the box body and driven by a driving assembly to rotate, the rotary table comprises a square step surface, and the step surface is used for bearing a drill bit loading and unloading device; the device also comprises a treatment barrel positioned below the turntable, the treatment barrel is in dynamic sealing fit with the turntable and is fixed with the box body, and the bottom of the treatment barrel is provided with a discharge valve; the treatment barrel is used for containing a treatment agent.
Aiming at the problem that a large amount of manpower is consumed for stripping the mud-coated rock debris coated on the drill bit in the prior art, the invention provides the treatment equipment for the well-exiting PDC drill bit, and the equipment is specially used for the PDC drill bit with the mud-coated phenomenon after the well-exiting, so that the manpower consumption can be effectively reduced. The equipment comprises a box body, wherein the upper surface of the box body is provided with a turntable, the specific arrangement mode of the turntable is not limited, and the turntable can be embedded or positioned on the surface or arranged in a concave manner. The drive assembly drives the turntable to rotate, the specific position and the layout of the drive assembly are not limited, and the turntable can be driven to rotate. The rotary table of the present invention is not a standard disc-type structure but has a square step surface that mates with the prior art square drill bit handler for carrying the drill bit handler. When the drill bit loading and unloading device is placed in the step surface, the drill bit loading and unloading device is driven to rotate by the rotation of the rotary table because the drill bit loading and unloading device and the rotary table are both square, and then the PDC drill bit clamped in the drill bit loading and unloading device is driven to rotate. The carousel below is the treatment bucket, and the treatment bucket must also be located inside the box, and the movable seal cooperation between treatment bucket and the carousel, the treatment bucket is fixed inside the box promptly, does not rotate along with the carousel, movable seal cooperation is through arbitrary current movable seal technique realization all can. Be used for holding the finishing agent in the processing barrel, the finishing agent is used for the dispersion mud pocket detritus, makes it automatic or be convenient for strip the drill bit surface, and the processing barrel bottom sets up the bleeder valve for the discarded finishing agent of discharge is removed in the change. When the PDC drill bit is used, the PDC drill bit of the well is detached, and the drill bit assembling and disassembling device and the drill bit wire lifting device are connected; meanwhile, treating agent is injected into the treating barrel in advance; then, the drill bit is lifted through the wire lifting, the drill bit is placed in the box body, the drill bit loading and unloading device is located on a step surface in the rotary table and matched with the step surface, and the drill bit wire lifting is removed; and then the driving assembly is started to drive the rotary table to rotate, and the drill bit is soaked in the treating agent and rotates. The theory of operation of this application is, utilizes the processing agent in the processing bucket to dissolve dispersion treatment to the cladding at the mud bag detritus on drill bit surface, rotates through the drive drill bit when soaking simultaneously, improves the dissolving dispersion ability of processing agent to the detritus, can utilize centrifugal force to make the detritus produce the trend that breaks away from the drill bit surface when just rotating at a high speed, is favorable to the processing agent to peel off its automation like this. In addition, the inventor finds that the compaction forming of the mud-covered rock debris attached to the drill bit is directional in the research process, this direction is the direction in which the drilling tool (including the drill bit) is rotating in the forward direction in the well, and therefore the drilling tool is rotating in the forward direction when working in the well (because reverse rotation has a great risk of tripping, which is strictly prohibited at present), therefore, the compact mud-covered rock debris compacted after the drilling tool is taken out of the well is the rock debris combination which is essentially piled up layer by the drill bit which continuously rotates along the same direction (positive direction), the drilling tool always rotates forwards in the well, so the drilling tool is difficult to throw away, the drill bit can be driven to rotate reversely by the driving assembly, so that the flow state of the fluid around the mud-coated rock debris is completely different from or even opposite to that in the well, thereby being beneficial to the automatic falling of the mud-covered rock debris from the drill bit, and achieving unexpected technical effects compared with the prior art. Handle the PDC drill bit behind the balling through this application, showing and having reduced the degree of difficulty, having reduced manpower consumption of peeling off to PDC drill bit balling detritus, the balling detritus can drop automatically, or become very loose, and the staff can peel off it easily after taking out the drill bit from the box. In addition, this application is owing to set up dedicated treatment facility for the PDC drill bit, and whole processing procedure all goes on in the box, consequently has avoided handling the potential safety hazard that exists with the drill bit inversion among the prior art, is showing the security that has improved the site operation personnel.
Furthermore, the turntable comprises a square through-diameter part and a circular through-diameter part which are distributed up and down, the square through-diameter part is matched with a square step surface, and the inner diameter of the circular through-diameter part is equal to that of the processing barrel; the circular through-diameter part is connected with the processing barrel through a bearing. The inside latus rectum of carousel is square, the below is circular for the top, and square latus rectum portion is used for supporting with the drill bit puller, ensures the stability of drill bit puller in this equipment, and circular latus rectum portion is supporting with the drill bit appearance to can with the processing barrel phase-match of below, be favorable to and the processing barrel between the movive seal cooperation.
Furthermore, the inner wall of the box body is provided with an annular track, and the turntable is in sliding fit in the annular track; the driving assembly comprises an annular rack fixedly sleeved outside the turntable, a gear meshed with the annular rack and a motor used for driving the gear to rotate. The inner wall of the box body is provided with the annular track, so that the rotary table can stably rotate, and the rotary table is prevented from falling or shaking. The power source of drive assembly in this scheme is the motor, and the motor supplies power through arbitrary current mode, and motor drive gear rotates, and the gear drives the ring rack and rotates, because the fixed cover of ring rack is established outside the carousel, consequently can drive the carousel and rotate. The setting position of annular rack does not do the restriction in this application, and arbitrary position all can outside the carousel.
Furthermore, a plurality of gears are annularly and uniformly distributed on the outer side of the annular rack, and each gear is meshed with the annular rack; one gear is connected with the output end of the motor, the other gears are connected to the inner wall of the box body through connecting shafts, and the gears are in running fit with the corresponding connecting shafts. The gear quantity is a plurality of in this scheme, and wherein only the gear that links to each other with the output of motor is as the driving gear, and all the other gears are as driven gear, carry out normal running fit through the connecting axle, and this scheme is showing the stability and the reliability of having improved annular rack, and then has improved the stability of rotation of carousel, is favorable to controlling the carousel and carries out high-speed reversal.
Further, an umbrella-shaped framework is arranged on the bottom surface inside the treatment barrel, the umbrella-shaped framework is coaxial with the treatment barrel, and the height of the umbrella-shaped framework is gradually reduced from the center to the periphery; the side wall of the inner part of the processing barrel is provided with a plurality of scraping pieces. As one of the main invention points of the application, the umbrella-shaped framework is arranged on the inner bottom surface of the treatment barrel, the umbrella-shaped framework is coaxial with the treatment barrel, the height of the umbrella-shaped framework is gradually reduced from the center to the periphery, the umbrella-shaped framework is distributed like an umbrella, the center of the umbrella-shaped framework is the highest point, and the umbrella-shaped framework is dispersed towards the periphery by taking the center as a starting point and gradually reduces the height to the bottom surface of the treatment barrel. The umbrella-shaped framework is arranged by taking the following factors into consideration: (1) the mud-coated phenomenon of the well outlet drill bit is the most serious around a bottom water hole, and the mud-coated rock debris at the bottom of the drill bit is most difficult to remove for a driller due to the compaction effect of high-pressure jet flow of a drill bit nozzle on the rock debris; (2) the bottom of the drill bit is placed on the ground downwards after the drill bit is taken out of the well and disassembled, so that the mud-coated rock debris around the nozzle is inconvenient to peel off manually; (3) the center of the bottom of the PDC drill bit is sunken inwards, and the difficulty is further made for manually stripping the debris wrapped by the mud. According to the scheme, through the arrangement of the umbrella-shaped framework, when the drill bit enters the treatment barrel, the drill bit is pressed downwards to enable the umbrella-shaped framework to deform, meanwhile, the umbrella-shaped framework enters the concave position at the bottom of the drill bit to crush the mud-wrapped rock debris in the umbrella-shaped framework, particularly, after the drill bit starts to rotate, the umbrella-shaped framework can fully stir and crush the mud-wrapped rock debris near the nozzle at the bottom of the drill bit, and a good stripping effect is achieved; and because the bottom of the drill bit is not flat but has more tiny concave-convex parts, the umbrella-shaped framework can be used for making full use of the toughness of the framework structure to carry out self-adaptation on the concave-convex parts, and the deformation and resetting capability of the umbrella-shaped framework are fully utilized to realize the stripping of the mud-coated rock debris at the bottom of the drill bit, thereby overcoming the stripping problem of the mud-coated rock debris at the bottom of the drill bit in the prior art. In addition, this scheme still sets up a plurality of pieces of striking off at the inside lateral wall of processing bucket, and the main effect of striking off the piece is to carrying out the breakage to the mud bag detritus in the drill bit side runner groove and peeling off.
Furthermore, the scraping piece is an arc-shaped metal wire with two ends fixed on the inner wall of the processing barrel. The arc wire is used as scraping the piece, and it is deformed and resets to utilize its toughness equally, can carry out the self-adaptation to the radial difference between drill bit side runner groove and the guarantor footpath portion, and compressed production deformation when the arc wire is just to the drill bit guarantor footpath portion, carries out the breakage to the mud bag detritus among the automatic re-setting entering runner groove when the arc wire is just to the drill bit runner groove and peels off to the mud bag detritus in the drill bit runner groove to realized carrying out automatic broken effect to the mud bag detritus of drill bit runner inslot.
Further, the inside lateral wall of processing barrel sets up a plurality of recesses, strike off a sliding fit in the recess, and strike off the cone that the piece was most advanced towards the inside direction of processing barrel, strike off a surface and set up a plurality of protruding stupexes, strike off and be connected the pressure spring between piece and the recess tank bottom. Strike off the cone of piece for sliding fit in the recess in this scheme, the recess setting is at the treatment barrel inner wall, and the most advanced of cone makes the cone have the trend that moves outward to the recess naturally towards the inside direction of treatment barrel under the pressure spring effect. When the cone is opposite to the diameter-protecting part of the drill bit, the diameter-protecting part extrudes the cone inwards, and the pressure spring is further compressed, so that the cone is contracted into the groove; when the cone is opposite to the drill bit runner groove, the cone is pushed outwards by the pressure spring, and the mud-coated rock debris in the runner groove is crushed and peeled off through the cone. In addition, strike off a surface and set up a plurality of protruding stupexes for increase and the mud bag rock debris between the region of action, more effectual carry out broken dispersion to mud bag rock debris, make it peel off fast.
Furthermore, a plurality of water pumps are arranged in the box body in an annular and uniform distribution mode, the water feeding end and the water discharging end of each water pump are respectively connected with a water feeding channel and a water discharging channel, the water feeding channels are communicated to the bottom of the side wall of the treatment barrel, and the water discharging channels are communicated to the top of the side wall of the treatment barrel. The mud-coated rock debris attached to the drill bit is always washed by the drilling fluid in a flow state from bottom to top in the well, so that the direction of the rock debris compacted is from bottom to top, positive circulation is always performed in the well during drilling engineering, namely, the annular rock debris always flows from bottom to top, therefore, the drilling fluid in the flow state can only continuously compact the mud-coated rock debris, and the phenomenon that the rock debris is difficult to automatically drop and the drill bit aggravates mud coating is caused. And in this scheme go against its way, the last water passageway setting of end of intaking water pump is in treatment barrel lateral wall bottom, the drainage channel setting of end of intaking water pump is at treatment barrel lateral wall top, make the finishing agent self-loopa in the treatment barrel through the water pump, and to the drill bit, its outside liquid is that top-down flows, this is completely opposite with the flow direction of well drilling fluid in the well, consequently, can carry out the reverse flush to the mud pocket detritus, be favorable to its fine and close compaction structure to erode and break down, and then be favorable to the quick of mud pocket detritus to peel off.
Further, still include with box upper surface assorted case lid, the case lid bottom sets up the arc conduction spare that the concave surface is down, the arc conduction spare links to each other with the vibrating motor who is located the case lid inside. After the drill bit and the drill bit assembling and disassembling device are put into the box body, the box cover is covered to carry out sealing operation. The arc conduction piece cover of case lid bottom this moment is at the screw thread end of drill bit, and when starting vibrating motor, the arc conduction piece vibrates to on will vibrating the transmission to the drill bit, through carrying out the initiative vibration to the drill bit, can effectively cooperate all the other mode of handling, and then show the reinforcing to the stripping effect of the mud bag detritus on the drill bit.
Further, the treating agent comprises the following components in percentage by mass: 25-30% of dispersing agent, 20-25% of surfactant, 3-6% of viscosity reducer and the balance of water. A large amount of dispersants and surfactants are added into the treating agent in the scheme, and the treating agent is obviously different from any drilling fluid in the prior art, and compared with clear water which is completely used, the dispersants can effectively disperse argillaceous rock debris, so that the rapid dissolution of the rock debris is facilitated, the densely cemented mud-coated rock debris is dispersed into fine particles, a cementing structure of the mud-coated rock debris is destroyed, and the rapid stripping of the mud-coated rock debris is facilitated. In addition, a large amount of surfactant is used for changing the wetting property of the surface of the mud-covered rock debris, so that the integral falling of the mud-covered rock debris is promoted, and the integral peeling is facilitated.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the treatment equipment for the PDC drill bit going out of the well, the treatment agent in the treatment barrel is used for dissolving and dispersing the mud-coated rock debris coated on the surface of the drill bit, the drill bit is driven to rotate while being soaked, the dissolving and dispersing capacity of the treatment agent on the rock debris is improved, and the rock debris can be separated from the surface of the drill bit by centrifugal force during high-speed rotation, so that the treatment agent can be automatically stripped off.
2. The processing equipment for the PDC drill bit out of the well can drive the drill bit to rotate reversely through the driving assembly, so that the flowing direction of fluid around the mud bag rock debris is opposite to that in the well, the mud bag rock debris can automatically fall off from the drill bit, the stripping difficulty of the mud bag rock debris of the PDC drill bit is obviously reduced, the labor consumption is reduced, and the mud bag rock debris can be loosened and even can automatically fall off.
3. According to the processing equipment for the PDC drill bit going out of the well, due to the arrangement of the umbrella-shaped framework, when the drill bit enters the processing barrel, the drill bit is pressed downwards to enable the umbrella-shaped framework to deform, meanwhile, the umbrella-shaped framework enters the concave position at the bottom of the drill bit to crush the mud-coated rock debris in the umbrella-shaped framework, particularly, after the drill bit starts to rotate, the umbrella-shaped framework can fully stir and crush the mud-coated rock debris near the nozzle at the bottom of the drill bit, and a good stripping effect is achieved; and because the bottom of the drill bit is not flat but has more tiny concave-convex parts, the umbrella-shaped framework can be used for fully utilizing the toughness of the framework structure to carry out self-adaptation on the concave-convex parts, and the deformation and the resetting capability of the umbrella-shaped framework are fully utilized to realize the stripping of the mud bag rock debris at the bottom of the drill bit.
4. The invention is used for the treatment equipment of the PDC drill bit out of the well, and realizes the effect of automatically crushing the mud-coated rock debris in the drill bit runner groove by using the scraping piece.
5. According to the treatment equipment for the PDC drill bit out of the well, the treatment agent is enabled to be self-circulated in the treatment barrel through the water pump, and the external liquid flows from top to bottom for the drill bit, which is completely opposite to the flow direction of the drilling fluid in the well, so that the mud-coated rock debris can be reversely flushed, flushing and disintegration of a compact structure of the mud-coated rock debris are facilitated, and rapid stripping of the mud-coated rock debris is facilitated.
6. According to the treatment equipment for the PDC drill bit going out of the well, the arc-shaped conducting piece at the bottom of the box cover is covered at the threaded end of the drill bit, when the vibration motor is started, the arc-shaped conducting piece vibrates and transmits the vibration to the drill bit, and the drill bit is actively vibrated, so that other treatment modes can be effectively matched, and the stripping effect on the mud-coated rock debris on the drill bit is obviously enhanced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view of an umbrella frame in an embodiment of the present invention;
fig. 4 is a cross-sectional view of a scraper element in an embodiment of the invention.
Reference numbers and corresponding part names in the drawings:
1-box body, 2-rotary table, 201-square through-diameter part, 202-round through-diameter part, 3-step surface, 4-treatment barrel, 5-discharge valve, 6-bearing, 7-annular rail, 8-annular rack, 9-gear, 10-motor, 11-connecting shaft, 12-umbrella-shaped framework, 13-scraping piece, 14-groove, 15-convex edge, 16-pressure spring, 17-water pump, 18-water feeding channel, 19-water discharging channel, 20-box cover, 21-arc-shaped conducting piece and 22-vibration motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention. In the description of the present application, it is to be understood that the terms "front", "back", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the scope of the present application.
Example 1:
the processing equipment for the PDC drill bit out of the well, as shown in fig. 1 and 2, is suitable for automatic processing of the PDC drill bit with a mud pocket phenomenon after the well is out of the well, and comprises a box body 1, wherein a rotary table 2 is arranged on the upper surface of the box body 1, the rotary table 2 is driven by a driving assembly to rotate, the rotary table 2 comprises a square step surface 3, and the step surface 3 is used for bearing a drill bit loading and unloading device; the device is characterized by further comprising a treatment barrel 4 positioned below the turntable 2, wherein the treatment barrel 4 is in dynamic sealing fit with the turntable 2, the treatment barrel 4 is fixed with the box body 1, and the bottom of the treatment barrel 4 is provided with a discharge valve 5; the treatment barrel 4 is used for containing a treatment agent. The turntable 2 comprises a square through-diameter part 201 and a circular through-diameter part 202 which are distributed up and down, the square through-diameter part 201 is matched with the square step surface 3, and the inner diameter of the circular through-diameter part 202 is equal to that of the treatment barrel 4; the circular through-diameter portion 202 is connected to the processing tub 4 via a bearing 6.
The using process of the embodiment comprises the following steps: firstly, disassembling a PDC drill bit of a well, and connecting a drill bit assembling and disassembling device and a drill bit wire lifting device; meanwhile, treating agent is injected into the treating barrel in advance; then, the drill bit is lifted through the wire lifting, the drill bit is placed in the box body, the drill bit loading and unloading device is located on a step surface in the rotary table and matched with the step surface, and the drill bit wire lifting is removed; and then the driving assembly is started to drive the rotary table to rotate, and the drill bit is soaked in the treating agent and rotates.
The soaking time of the mud bag drill bit is controlled to be not less than 1h when the mud bag drill bit is used, and of course, the longer the soaking time is, the better the treatment effect is.
Example 2:
as shown in fig. 1 and fig. 2, in the processing equipment for the PDC drill bit going out of the well, on the basis of embodiment 1, an annular rail 7 is provided on the inner wall of the casing 1, and the rotary table 2 is slidably fitted in the annular rail 7; the driving assembly comprises an annular rack 8 fixedly sleeved outside the turntable 2, a gear 9 meshed with the annular rack 8 and a motor 10 for driving the gear 9 to rotate; a plurality of gears 9 are annularly and uniformly distributed on the outer side of the annular rack 8, and each gear 9 is meshed with the annular rack 8; one of the gears 9 is connected with the output end of the motor 10, the other gears 9 are connected to the inner wall of the box body 1 through a connecting shaft 11, and the gears 9 are in running fit with the corresponding connecting shaft 11.
Example 3:
in the treatment equipment for the PDC drill bit coming out of the well as shown in fig. 1 and 2, on the basis of any of the above embodiments, the umbrella-shaped framework 12 as shown in fig. 3 is arranged on the bottom surface inside the treatment barrel 4, the umbrella-shaped framework 12 is coaxial with the treatment barrel 4, and the height of the umbrella-shaped framework 12 is gradually reduced from the center to the periphery; a plurality of scraping pieces 13 are arranged on the inner side wall of the treatment barrel 4; a plurality of water pumps 17 which are uniformly distributed in an annular mode are arranged in the box body 1, the water feeding end and the water discharging end of each water pump 17 are respectively connected with a water feeding channel 18 and a water discharging channel 19, the water feeding channel 18 is communicated to the bottom of the side wall of the treatment barrel 4, and the water discharging channel 19 is communicated to the top of the side wall of the treatment barrel 4; the vibration box further comprises a box cover 20 matched with the upper surface of the box body 1, an arc-shaped conducting piece 21 with a downward concave surface is arranged at the bottom of the box cover 20, and the arc-shaped conducting piece 21 is connected with a vibration motor 22 positioned inside the box cover 20.
In the embodiment, through the arrangement of the umbrella-shaped framework 12, when the drill bit enters the treatment barrel, the drill bit is pressed downwards to enable the umbrella-shaped framework 12 to deform, meanwhile, the umbrella-shaped framework 12 enters the concave position at the bottom of the drill bit to crush the mud-coated rock debris therein, and particularly, after the drill bit starts to rotate, the umbrella-shaped framework 12 can fully stir and crush the mud-coated rock debris near a nozzle at the bottom of the drill bit to achieve a good stripping effect; and because the bottom of the drill bit is not flat but has more tiny concave-convex parts, the umbrella-shaped framework 12 can make full use of the toughness of the framework structure to carry out self-adaptation on the concave-convex parts, and the deformation and resetting capability of the umbrella-shaped framework 12 are fully utilized to realize the stripping of the mud bag rock debris at the bottom of the drill bit.
Preferably, the water pump uses a booster pump, and a nozzle is arranged at the end part of the drainage channel, so that the pressure of the sprayed water flow is increased, and the reverse flushing effect is further provided.
Preferably, the arc-shaped conducting member is arranged to be telescopic and to be extended downwards under the action of gravity in a natural state, so that sufficient contact with the threaded end of the drill bit is ensured.
In this embodiment, as shown in fig. 2, the scraping element 13 is an arc-shaped wire with two ends fixed on the inner wall of the processing barrel 4.
Example 4:
the difference between this embodiment and embodiment 3 is that, as shown in fig. 4, a plurality of grooves 14 are formed in the side wall of the interior of the processing barrel 4, the scraping element 13 is slidably fitted in the grooves 14, the scraping element 13 is a cone with a tip facing the interior of the processing barrel 4, a plurality of protrusions 15 are formed on the surface of the scraping element 13, and a pressure spring 16 is connected between the scraping element 13 and the bottom of the groove 14.
Example 5:
the treating agent for the balling treatment of the PDC drill bit for well production can be used in any one of the embodiments and comprises the following components in percentage by mass: 25-30% of dispersing agent, 20-25% of surfactant, 3-6% of viscosity reducer and the balance of water.
The treating agent of the embodiment is specially used for the PDC bit balling treatment of the well, and no special formula exists in the prior art, so that the inventor carries out targeted design: the treating agent of this embodiment has added a large amount of dispersants and surfactant, and this all has apparent difference with arbitrary drilling fluid among the prior art, and compare in using the clear water completely, a large amount of dispersants can effectively disperse argillaceous detritus, is favorable to dissolving the detritus fast, makes the dispersion of tight cemented mud bag detritus be tiny particle, destroys its cementation structure, is favorable to peeling off fast to mud bag detritus. In addition, a large amount of surfactant is used for changing the wetting property of the surface of the mud-covered rock debris, so that the integral falling of the mud-covered rock debris is promoted, and the integral falling is facilitated. The viscosity reducer is mainly used for reducing the viscosity of the treating agent after working for a period of time so as to reduce the working pressure of the water pump.
For the drilling construction of offshore oil fields, the balance of water is preferably seawater with better dispersity and without the restriction of cost and reserve.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The processing equipment for the outlet PDC drill bit is characterized by comprising a box body (1), wherein a rotary table (2) is arranged on the upper surface of the box body (1), the rotary table (2) is driven by a driving assembly to rotate, the rotary table (2) comprises a square step surface (3), and the step surface (3) is used for bearing a drill bit loading and unloading device; the device is characterized by also comprising a treatment barrel (4) positioned below the turntable (2), wherein the treatment barrel (4) is in dynamic sealing fit with the turntable (2), the treatment barrel (4) is fixed with the box body (1), and the bottom of the treatment barrel (4) is provided with a discharge valve (5); the treatment barrel (4) is used for containing a treatment agent;
an umbrella-shaped framework (12) is arranged on the bottom surface in the treatment barrel (4), the umbrella-shaped framework (12) is coaxial with the treatment barrel (4), and the height of the umbrella-shaped framework (12) is gradually reduced from the center to the periphery; a plurality of scraping pieces (13) are arranged on the inner side wall of the treatment barrel (4);
the water treatment tank is characterized in that a plurality of annularly and uniformly distributed water pumps (17) are arranged in the tank body (1), a water feeding end and a water discharging end of each water pump (17) are respectively connected with a water feeding channel (18) and a water discharging channel (19), the water feeding channels (18) are communicated to the bottom of the side wall of the treatment barrel (4), and the water discharging channels (19) are communicated to the top of the side wall of the treatment barrel (4).
2. The processing equipment for a downhole PDC bit according to claim 1, wherein the rotary table (2) comprises a square through-diameter part (201) and a circular through-diameter part (202) which are distributed up and down, the square through-diameter part (201) is matched with the square step surface (3), and the inner diameter of the circular through-diameter part (202) is equal to that of the processing barrel (4); the circular through-diameter part (202) is connected with the processing barrel (4) through a bearing (6).
3. The handling equipment for a downhole PDC drill bit according to claim 1, wherein the inner wall of the casing (1) is provided with an annular track (7), and the rotary disc (2) is slidably fitted in the annular track (7); the driving assembly comprises an annular rack (8) fixedly sleeved outside the turntable (2), a gear (9) meshed with the annular rack (8), and a motor (10) used for driving the gear (9) to rotate.
4. The treatment equipment for a PDC drill bit coming out of a well according to claim 3, wherein a plurality of gears (9) are annularly and uniformly distributed outside the annular rack (8), and each gear (9) is meshed with the annular rack (8); one gear (9) is connected with the output end of the motor (10), the other gears (9) are connected to the inner wall of the box body (1) through a connecting shaft (11), and the gears (9) are in running fit with the corresponding connecting shafts (11).
5. A treatment equipment for a PDC drill bit coming out of a well according to claim 1, characterized in that the scraper (13) is an arc wire fixed at both ends to the inner wall of the treatment barrel (4).
6. The processing equipment for the PDC drill bit for going out of the well according to claim 1, wherein a plurality of grooves (14) are formed in the inner side wall of the processing barrel (4), the scraping piece (13) is in sliding fit in the grooves (14), the scraping piece (13) is a cone with the tip facing the inner direction of the processing barrel (4), a plurality of convex ridges (15) are formed in the surface of the scraping piece (13), and a pressure spring (16) is connected between the scraping piece (13) and the bottom of the groove (14).
7. The processing equipment for the well-exiting PDC drill bit according to claim 1, further comprising a box cover (20) matched with the upper surface of the box body (1), wherein the bottom of the box cover (20) is provided with an arc-shaped conducting piece (21) with a downward concave surface, and the arc-shaped conducting piece (21) is connected with a vibration motor (22) positioned inside the box cover (20).
8. The treatment apparatus for a downhole PDC bit according to claim 1, wherein the treatment agent comprises the following components in mass percent: 25-30% of dispersing agent, 20-25% of surfactant, 3-6% of viscosity reducer and the balance of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598954.7A CN113020096B (en) | 2021-05-31 | 2021-05-31 | Treatment equipment for well-outlet PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598954.7A CN113020096B (en) | 2021-05-31 | 2021-05-31 | Treatment equipment for well-outlet PDC drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113020096A CN113020096A (en) | 2021-06-25 |
| CN113020096B true CN113020096B (en) | 2021-08-10 |
Family
ID=76455919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110598954.7A Active CN113020096B (en) | 2021-05-31 | 2021-05-31 | Treatment equipment for well-outlet PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113020096B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704214B (en) * | 2022-06-07 | 2022-09-02 | 西南石油大学 | Drill bit fastening and clamping structure and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0090039A1 (en) * | 1981-10-02 | 1983-10-05 | SANDERSON, Robert A | Tape cleaning apparatus |
| JPH09177500A (en) * | 1995-12-27 | 1997-07-08 | Okumura Corp | Tunnel wall surface cleaning device |
| CN107989558A (en) * | 2017-12-06 | 2018-05-04 | 郑州神利达钻采设备有限公司 | A kind of drilling machine bar of water cleaning type |
| CN209034937U (en) * | 2018-10-20 | 2019-06-28 | 西南石油大学 | A kind of cleaning device of petroleum geology drill bit |
| CN209139231U (en) * | 2018-09-07 | 2019-07-23 | 扬州华青电子有限公司 | Dust cleaning device is used in a kind of installation of electronic components |
| CN211436749U (en) * | 2019-08-30 | 2020-09-08 | 湖南福瑞印刷有限公司 | Portable adhesive residue scraping device |
| CN112301358A (en) * | 2020-11-01 | 2021-02-02 | 李道海 | Blast pre-degreasing device for cold-rolled seamless stainless steel pipe |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2527640A1 (en) * | 1975-06-20 | 1977-01-20 | Wilhelm Fleissner | Cleaning device for paint rollers - includes extension shaft insertable into hand drill to throw paint off upon rotation |
| NO336178B1 (en) * | 2011-03-17 | 2015-06-08 | Soiltech As | Method and apparatus for cleaning cuttings |
| CN107051950A (en) * | 2017-06-06 | 2017-08-18 | 湖南美蓓达科技股份有限公司 | A kind of bearing cleaner |
| CN107755324A (en) * | 2017-10-28 | 2018-03-06 | 南通旭越光电科技有限公司 | A kind of drill bit wiper mechanism |
| CN209597712U (en) * | 2019-01-08 | 2019-11-08 | 武穴市金锐精密锻造有限公司 | A kind of telescopic down-the-hold drill bit cleaning device |
| CN210788277U (en) * | 2019-10-29 | 2020-06-19 | 中岩勘测规划设计有限公司 | Dig rig drill bit earth cleaning device soon |
| CN212716451U (en) * | 2020-07-10 | 2021-03-16 | 四川伽锐科技有限公司 | PDC drill bit capable of cleaning mud bag |
-
2021
- 2021-05-31 CN CN202110598954.7A patent/CN113020096B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0090039A1 (en) * | 1981-10-02 | 1983-10-05 | SANDERSON, Robert A | Tape cleaning apparatus |
| JPH09177500A (en) * | 1995-12-27 | 1997-07-08 | Okumura Corp | Tunnel wall surface cleaning device |
| CN107989558A (en) * | 2017-12-06 | 2018-05-04 | 郑州神利达钻采设备有限公司 | A kind of drilling machine bar of water cleaning type |
| CN209139231U (en) * | 2018-09-07 | 2019-07-23 | 扬州华青电子有限公司 | Dust cleaning device is used in a kind of installation of electronic components |
| CN209034937U (en) * | 2018-10-20 | 2019-06-28 | 西南石油大学 | A kind of cleaning device of petroleum geology drill bit |
| CN211436749U (en) * | 2019-08-30 | 2020-09-08 | 湖南福瑞印刷有限公司 | Portable adhesive residue scraping device |
| CN112301358A (en) * | 2020-11-01 | 2021-02-02 | 李道海 | Blast pre-degreasing device for cold-rolled seamless stainless steel pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113020096A (en) | 2021-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113020096B (en) | Treatment equipment for well-outlet PDC drill bit | |
| CN102913157B (en) | Underground sleeve rotational flow guider | |
| CN111535760A (en) | Positive and negative circulation scraping and washing tool and using method thereof | |
| CN113153156A (en) | Hydraulic combined mechanical hole repairing device and method | |
| CN115814913A (en) | Stone crushing device capable of reducing dust flying | |
| CN205977704U (en) | Clear hole slush pump | |
| CN201614902U (en) | Post-fracturing rotary sand washing head | |
| CN215213380U (en) | Hole opening slag discharging device of rotary drill | |
| CN202611635U (en) | Drilling rock debris and waste liquid separating device | |
| CN219910718U (en) | Downhole rotary sand and coal dust cleaning device | |
| CN113898286A (en) | Single-action drilling tool and combined type coring drilling tool | |
| CN106872210B (en) | Method for detecting full-hole undisturbed core sample drilled on diaphragm wall by core drilling method | |
| CN105736386B (en) | Pulp pump stirs cutting and crushing device | |
| CN214697699U (en) | Hole repairing device for hydraulic combined machine | |
| CN215430773U (en) | Rare earth metal waste residue dissolving and recovering device | |
| CN211397479U (en) | High-toughness outer flat drill rod | |
| CN114439452A (en) | Pipe string device for discharging brine from sediment gap of salt cavern gas storage and brine discharging method | |
| CN106948781A (en) | A kind of mining detachable waterpower deslagging drilling rod | |
| CN210768675U (en) | Sleeve milling integrated bailing device | |
| CN112207098A (en) | Electric power construction cable laying pipeline pull throughs | |
| CN218177179U (en) | Downhole rotatable wellbore cleaning tool | |
| CN201738809U (en) | Three-function backflow type hydraulic rotary-percussion device of petroleum drilling | |
| CN201714418U (en) | Drum pulping machine | |
| CN204933620U (en) | A kind of vertical impact crusher of easy access | |
| CN212525123U (en) | Metallurgical industrial metal ore belt cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |