CN202249834U - Hydraulic power slip for drill pipe - Google Patents
Hydraulic power slip for drill pipe Download PDFInfo
- Publication number
- CN202249834U CN202249834U CN2011203036543U CN201120303654U CN202249834U CN 202249834 U CN202249834 U CN 202249834U CN 2011203036543 U CN2011203036543 U CN 2011203036543U CN 201120303654 U CN201120303654 U CN 201120303654U CN 202249834 U CN202249834 U CN 202249834U
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- oil cylinder
- lift arm
- support
- slips
- rotary oil
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Abstract
The utility model relates to a power slip used for pulling a drill pipe, which belongs to the technical field of drilling support equipment. The power slip consists of a sludge scrapping tray, a sludge scrapping disk, a lift arm, a slip body, a rotary cylinder, a lift arm support, an upper support of the cylinder, a support of the rotary cylinder, a movable stand column, a lower support of the cylinder, a lift cylinder and a fixed stand column, wherein the slip body is hung under the left end of the lift arm; the sludge scrapping tray and the sludge scrapping disk are arranged above the left end of the lift arm; the right end of the lift arm is arranged on the lift arm support; the lift arm support is fixed on the movable stand column; one end of the rotary cylinder is connected with the upper end of the support of the rotary cylinder, and the other end of the rotary cylinder is connected with the lift arm; and the movable stand column is connected with the fixed stand column by the upper support of the cylinder, the lower support of the cylinder and the lift cylinder. With the replacement of different types of slip teeth, the hydraulic power slip for the drill pipe can be suitable for pulling different types of drill pipes, thereby realizing the multiple functions of the hydraulic power slip for the drill pipe and solving the problems in the existing slip that the structure is complex, gas/liquid channel pipelines are various, the maintenance is not convenient, and the safety is poor.
Description
Technical field
The utility model relates to the power slip that removes drilling rod in a kind of oil or the geological drilling process; Be particularly related to a kind of drilling rod hydraulic power slips, belong to drilling well corollary equipment technical field.
Background technology
When present oil field or geological drilling round trip and casing job; For blocking, drilling rod, drill collar or sleeve pipe with operation be fixed on the well head place; Utilize hydraulic tongs dismounting pipe button plus-minus drilling tool, mostly adopt two elevator operations or single elevator to add the operating type of portable slips.These operating types all exist labor strength big, inefficiency, problems such as poor safety performance.Particularly adopt two elevator operating types, cause problems such as Important Project that single-suspender rig down causes and personal injury easily.Though portable drill pipe slip can be increased work efficiency a little, himself weight is bigger, and generally all more than 70 kilograms, labor strength is big especially, will be equipped with several operating personnel in shifts on the rig floor.
In order to address the above problem; Someone did improvement to slips; Like Chinese patent: ZL 91229687.9; Name is called " the moving slips of a kind of oil drilling construction usefulness gas (liquid) " to be provided a kind of and can hold drilling rod, sleeve pipe suspending weight and can transmit rotating disk dynamic torque and bearing elevator, have the multi-functional slips of erection device, owing to its working depth reasons such as to exceed that the rig floor face is more, the external power cylinder takes up space big and the motion consumable accessory is more, can't be promoted on a large scale at the scene.Chinese patent: ZL92242347.4 and for example; Name is called " semi-automatic drill string slips "; Adopt the suspension apparatus of a kind of up-down plunger spring system of particular design and slips that two do not link awl seat, Three Degree Of Freedom, can realize full well section elevator and slips supporting remove the drill string operation; And overcome introduction state external slips complete sets of Techniques difficult, install and use problem such as inconvenience.But this slips is to utilize plunger spring and operating personnel's externally applied forces and deadweight to realize the up-down of slips body, and working depth is higher, and exists automaticity low equally, and labor strength is big, problems such as inefficiency, poor safety performance.Other has Chinese patent: ZL 02212500.0, and name is called " power slip ", and a kind of drill string slips that utilizes the external cylinder for power is provided; Cylinder is fixed on above the big quadrel, and the tracheae line is suspended on the outside, and the real work of slips body is highly high; Be unfavorable for wellhead equipment and personnel's operation, and two cylinders employing independent gas circuits, need two-way totally four turnover tracheae lines connection; The gas circuit pipeline is more, loading and unloading trouble not only, and be placed in and be easy on the rig floor face damage.Similar pneumatic drilling rod power slip is abroad also arranged, and working depth is all more than 600mm, and suitable difficulty when well head carries out hydraulic tongs dismounting drilling rod button and puts operation such as blowout prevention box is not suitable for China's national situation during use.
The domestic hydraulic pressure that also utilizes was done improved as power to slips; Like patent: ZL97217249.1; Name is called " fluid pressure type tubing slip ", and the structure that it is characterized in that being installed in through connecting rod the slips on the movable disk is the part of hollow double tapered cone, and the last tapering of hollow double tapered cone is big, time tapering is little; The lock ring that is installed on the fixed disk is the garden loop configuration; Its inwall is a double tapered cone structure, and it is big to go up little, the following tapering of tapering, need be fixed on operation on the well head to the chassis during use; Patent No. ZL200920274294.1 for another example; Name is called " rotary type hydraulic slips and the rotating bidirectional hydraulic pressure pipe slips that uses this slips ", this patent provide a kind of on tubing string needs, shackle, or need not unclamp slips when rotary operation such as salvaging, overlap, grind, milling; Slips applies control to tubing string all the time; Make tubing string be in slave mode, be not easy to scurry the event of running affairs, increase the safety instrument of operation.
More than domestic several kinds improve all to be based on and use cylinder or hydraulic cylinder as power; All have complex structure, gas-liquid road pipeline is various, defectives such as inconvenient maintenance; While need be lifted up into rotary bushing in use or is directly installed on the well head; The time spent does not take out again or hangs away, has the inconvenience of use, shortcomings such as poor stability.
Summary of the invention
The purpose of the utility model is: provide a kind of use hydraulic pressure as power; Utilizing elevating ram to drive the slips body that is connected with lift arm goes up and down; And combine the wedge action of male cone (strobilus masculinus) with the inner conical surface of rotating disk master bushing of slips body, tighten and unclamp the drilling rod operation; Utilize rotary oil cylinder slips body migration turnover well head center simultaneously, and have and scrape the mud function automatically, be fit to and the matching used drilling rod hydraulic power of automation hydraulic drill rig slips.
The utility model is realized above-mentioned purpose through following technical scheme:
This drilling rod hydraulic power slips is by scraping mud pallet, mud scraping disc, wear ring, lift arm, upper pin, brace, lower bearing pin, slips body, rotary bushing, rotary oil cylinder, lift arm support, oil cylinder upper bracket, rotary oil cylinder support, and active column, oil cylinder lower carriage, elevating ram and vertical columns are formed; It is characterized in that: the slips body constitutes by three, and wherein a slice slips body is suspended on the below of lift arm left end through lower bearing pin, brace and upper pin; The top of lift arm left end is equipped with scrapes the mud pallet, scrapes in the mud pallet mud scraping disc is housed, and in the centre bore of lift arm left end wear ring is installed; The right-hand member of lift arm is shipped and resell on another market through main shaft and is installed on the lift arm support; The lift arm support is fixed on the active column through set lagging; The rotary oil cylinder support is installed on the set lagging; One end of rotary oil cylinder is shipped and resell on another market through oil cylinder and is connected with rotary oil cylinder support upper end, and the other end of rotary oil cylinder is shipped and resell on another market through oil cylinder and is connected with lift arm; Active column is installed in the vertical columns, is uniformly distributed with between active column and the vertical columns four guide runners are housed, and active column is connected with vertical columns with the oil cylinder lower carriage through oil cylinder upper bracket, elevating ram; Two safety pins are equipped with in the right-hand member top of lift arm.
On the described slips body intrados slip insert is housed; The described mud pallet of scraping is double formula structure, is connected with lift arm through small clevis pin with head, and can rotates by 90 degree, and mud scraping disc is fixed on through joint pin and trip bolt and scrapes mud pallet below.
Described rotary oil cylinder is connected with hydraulic control unit through pipe joint with elevating ram; Hydraulic control unit is made up of rotary oil cylinder two-way one-way throttle valve, rotary oil cylinder hydraulic control one-way valve, rotary oil cylinder three position four-way electromagnetic valve, elevating ram three position four-way electromagnetic valve, elevating ram hydraulic control one-way valve, elevating ram two-way one-way throttle valve; Hydraulic control unit is connected with the rig main hydraulic system through pipeline.
The utility model beneficial effect compared with prior art is:
The disposable part that becomes rig on the offshore boring island that is fixed on of this drilling rod hydraulic power slips, hydraulic line and electrical equipment control line are arranged in the offshore boring island below, do not need often lifting or dismounting, do not influence other work of drillng operation.Rotate to horizontal level to lift arm through rotary oil cylinder during round trip, and place the slips body in the rotary bushing,, drive the slips body and go up and down and unclamp or tighten drilling rod through the up-down of elevating ram control activity post.After round trip is accomplished; Shift out the operating position to lift arm and the rotation of slips body through rotary oil cylinder; Can shed the oil cylinder pressure at two ends with safety pin after fixing, keep the stability of hydraulic system and improve oil cylinder application life, and lift arm not influence other drillng operation when stop position.On supporting disk, set up be prone to mounting or dismounting scrape mud pallet and built-in mud scraping disc, the dual-use function of having realized scraping mud He having held drilling rod has improved security performance in reduction labour intensity, improved operating efficiency greatly.Increased hydraulic control one-way valve in the hydraulic control unit; Guaranteed that the slips body can not descend suddenly because of other fault under open configuration; The two-way one-way throttle valve is used to regulate the speed that oil cylinder rises and descends, keep balance that the slips body goes up and down and with the continuity of round trip.This drilling rod hydraulic power slips is through changing dissimilar slip inserts; Be applicable to the drilling rod round trip of different size; And realized the multifunctionality of drilling rod hydraulic power slips, supporting uses such as common rig that can drive and workover rig, applied range with the automation hydraulic drill rig of different size, rig that the configuration ram is driven and through rotating disk; Functional strong, safe and reliable.Solved existing slips complex structure, gas-liquid road pipeline is various, inconvenient maintenance; And need lift up into rotary bushing in use or be directly installed on the well head, the time spent does not take out again or hangs away, use extremely inconvenient, the problem of poor stability.
Description of drawings:
Structural representation when Fig. 1 is drilling rod hydraulic power slips decline chucking drilling rod;
Structural representation when Fig. 2 unclamps drilling rod for drilling rod hydraulic power slips rises;
Fig. 3 is the plan structure sketch map of drilling rod hydraulic power slips;
Fig. 4 leaves the structural representation of well head for the rotation of drilling rod hydraulic power slips;
Fig. 5 is the hydraulic control unit schematic diagram of drilling rod hydraulic power slips.
Among the figure: 1, scrape the mud pallet, 2, mud scraping disc, 3, wear ring, 4, lift arm, 5, upper pin, 6, brace; 7, lower bearing pin, 8, slip insert, 9, the slips body, 10, rotary bushing, 11, rotary oil cylinder, 12, the lift arm support; 13, oil cylinder upper bracket, 14, the rotary oil cylinder support, 15, set lagging, 16, active column, 17, guide runner; 18, oil cylinder lower carriage, 19, elevating ram, 20, vertical columns, 21, safety pin, 22, main shaft ships and resell on another market; 23, oil cylinder is shipped and resell on another market, and 24, joint pin, 25, small clevis pin with head, 26, trip bolt, 27, rotary oil cylinder two-way one-way throttle valve; 28, rotary oil cylinder hydraulic control one-way valve, 29, the rotary oil cylinder three position four-way electromagnetic valve, 30, the elevating ram three position four-way electromagnetic valve, 31, the elevating ram hydraulic control one-way valve, 32, elevating ram two-way one-way throttle valve.
The specific embodiment:
This drilling rod hydraulic power slips is by scraping mud pallet 1, mud scraping disc 2, wear ring 3, lift arm 4, upper pin 5, brace 6, lower bearing pin 7, slips body 9, rotary bushing 10, rotary oil cylinder 11, lift arm support 12, oil cylinder upper bracket 13, rotary oil cylinder support 14, and active column 16, oil cylinder lower carriage 18, elevating ram 19 and vertical columns 20 are formed.Slips body 9 constitutes by three, and a slice slips body 9 wherein is suspended on the below of lift arm 4 left ends through lower bearing pin 7, brace 6 and upper pin 5; The top of lift arm 4 left ends is equipped with scrapes mud pallet 1, scrapes mud scraping disc 2 is housed in the mud pallet 1, in the centre bore of lift arm 4 left ends wear ring 3 is installed; The right-hand member of lift arm 4 is shipped and resell on another market through main shaft and 22 is installed on the lift arm support 12; Lift arm support 12 is fixed on the active column 16 through set lagging 15; The rotary oil cylinder support 14 that can regulate height is installed on the set lagging 15; One end of rotary oil cylinder 11 is shipped and resell on another market through oil cylinder and 23 is connected with the upper end of rotary oil cylinder support 14, and the other end of rotary oil cylinder 11 is shipped and resell on another market through oil cylinder and 23 is connected with lift arm 4; Active column 16 is installed in the vertical columns 20; Be uniformly distributed with between active column 16 and the vertical columns 20 four guide runners 17 are housed; Guide runner 17 directly contacts with the external surface of active column 16, to reduce the sliding-contact area, guarantees the up and down balance system and the resistance of reducing friction of active column 16.Active column 16 is connected with vertical columns 20 with oil cylinder lower carriage 18 through oil cylinder upper bracket 13, elevating ram 19; Two safety pins 21 are equipped with in the right-hand member top of lift arm 4, and lift arm 4 all maybe be through safety pin 21 and lift arm support 12 fixing (referring to accompanying drawing 1～4) at horizontal level or position of rotation.
Anti-skidding miniature slip insert 8 is housed on the intrados of described slips body 9, can selects to change corresponding slip insert 8, be applicable to the round trip of different size drilling rod according to different pipe bars.
The described mud pallet 1 of scraping is double formula structure; Be connected with lift arm 4 through small clevis pin with head 25; And can rotate by 90 degree; When the trip-out operation, scrape mud pallet 1 and be fixed on mud scraping disc 2 through joint pin 24 and trip bolt 26 and scrape mud pallet 1 below, and scrape mud pallet 1 inside certain axial and radial floating space is arranged.
Described rotary oil cylinder 11 is connected with hydraulic control unit through pipe joint with elevating ram 19; Hydraulic control unit is formed (referring to accompanying drawing 5) by rotary oil cylinder two-way one-way throttle valve 27, rotary oil cylinder hydraulic control one-way valve 28, rotary oil cylinder three position four-way electromagnetic valve 29, elevating ram three position four-way electromagnetic valve 30, elevating ram hydraulic control one-way valve 31, elevating ram two-way one-way throttle valve 32, and hydraulic control unit is connected with the rig main hydraulic system through pipeline.
Do explanation further in the face of the concrete course of work of this drilling rod hydraulic power slips down.
1, Installation and Debugging:
Drilling rod hydraulic power slips is placed in the preformed hole of offshore boring island, the bolt that is locked, the inspection hydraulic control unit is connected with rotary oil cylinder 11, elevating ram 19 and main oil supply pipe, checks the fixing and lubrication circumstances of each bearing pin.
Regulate rotary oil cylinder two-way one-way throttle valve 27, elevating ram two-way one-way throttle valve 32 in the hydraulic control unit; Make flow be in less state; Start elevating ram three position four-way electromagnetic valve 30; Make active column 16 rise to the extreme higher position, start rotary oil cylinder three position four-way electromagnetic valve 29, make lift arm 4 rotate to horizontal level (promptly from accompanying drawing 4 to accompanying drawing 2).The active column 16 that repeatedly goes up and down again, and progressively regulate elevating ram two-way one-way throttle valve 32 and increase fuel supply flow rates reaches and removes the synchronous speed of drilling rod; Adjustment rotary oil cylinder two-way one-way throttle valve 27, the rotary speed that makes rotary oil cylinder 11 is to satisfy the rotational time requirement of lift arm 4.
2, round trip:
Mud scraping disc 2 is installed: start rotary oil cylinder three position four-way electromagnetic valve 29, make lift arm 4 rotate to horizontal level, start elevating ram three position four-way electromagnetic valve 30, slips body 9 is descended clamp drilling rod, dismantle tool joint; Be rotated counterclockwise trip bolt 26, scraping mud pallet 1 after inner rotary is opened, lay mud scraping disc 2, inwardly rotation is scraped mud pallet 1 and developed with lift arm 4 again, and the trip bolt 26 that turns clockwise, fixing through joint pin 24 scraping mud pallet 1.
During the trip-out operation, the driller operates with the trip-out short circuit head and tangles drilling rod earlier, and operation elevating ram three position four-way electromagnetic valve 30 makes the bottom oil-feed of elevating ram; Carry drilling rod simultaneously, utilize the frictional force of the miniature slip insert 8 on drilling rod and slips body 9 intrados, work as piston stroking upward; Promote lift arm 4 and drive slips body 9 to rise through active column 16, utilize the eccentric and back tapering of gravity of slips body 9 simultaneously, make three slips bodies 9 to extending out out; Get out of the way the drilling rod passage, drilling rod is up; Mud scraping disc 2 is started working simultaneously, and the mud that adheres on the drilling rod is scraped into well head.In the time of will unloading the screw rod button after one tool drilling rod is mentioned, stop hook and promote, operation elevating ram three position four-way electromagnetic valve 30; Make the top oil-feed of elevating ram 19; Descent of piston drives lift arm 4 and drives 9 declines of slips body through active column 16, utilizes the eccentric and back tapering of gravity of slips body 9 simultaneously; Three slips bodies 9 hold together and tighten drilling rod to the center collection, begin to unload the screw rod button this moment.After unsnatching the screw rod button and removing drilling rod, the trip-out short circuit head is connected with drilling rod once more and begins next trip-out operation.
During tripping operation, basic identical when the slips course of work and trip-out operation.Carry drilling rod earlier, operate the bottom oil-feed that elevating ram three position four-way electromagnetic valve 30 makes elevating ram 19 again, carry drilling rod on simultaneously; Utilize the frictional force of drilling rod and slip insert 8, piston stroking upward promotes lift arm 4 and drives slips body 9 to rise through active column 16; Utilize the eccentric and back tapering of gravity of slips body 9 simultaneously; Three slips bodies 9 get out of the way the drilling rod passage to extending out out, and drilling rod is descending; When unloading the screw rod button and will tighten drilling rod; Operation elevating ram three position four-way electromagnetic valve 30 makes the top oil-feed of elevating ram 19; Descent of piston; Drive lift arms 4 and drive slips body 9 through active column 16 and descend, utilize the eccentric and back tapering of gravity of slips body 9 simultaneously, three slips bodies 9 hold together and tighten drilling rod to the center collection.Need not scrape mud during tripping operation, mud scraping disc 2 can be installed earlier.
After round trip is accomplished; Order by installing is taken off mud scraping disc 2; Operation rotary oil cylinder three position four-way electromagnetic valve 29 makes the top oil-feed of rotary oil cylinder 11, piston-retraction, and lift arm 4 rotates to stop position together with slips body 9; Plug safety pin 21, make rotary oil cylinder three position four-way electromagnetic valve 29 be in the meta position and shed the pressure of rotary oil cylinder 11.
Claims (3)
1. this drilling rod hydraulic power slips is by scraping mud pallet (1), mud scraping disc (2), wear ring (3), lift arm (4), upper pin (5), brace (6), lower bearing pin (7), slips body (9), rotary bushing (10), rotary oil cylinder (11), lift arm support (12), oil cylinder upper bracket (13), rotary oil cylinder support (14), and active column (16), oil cylinder lower carriage (18), elevating ram (19) and vertical columns (20) are formed; It is characterized in that: slips body (9) constitutes by three, and wherein a slice slips body (9) is suspended on the below of lift arm (4) left end through lower bearing pin (7), brace (6) and upper pin (5); The top of lift arm (4) left end is equipped with scrapes mud pallet (1), scrapes mud scraping disc (2) is housed in the mud pallet (1), in the centre bore of lift arm (4) left end wear ring (3) is installed; The right-hand member of lift arm (4) through main shaft ship and resell on another market (22) be installed on the lift arm support (12); Lift arm support (12) is fixed on the active column (16) through set lagging (15); Rotary oil cylinder support (14) is installed on the set lagging (15); One end of rotary oil cylinder (11) is connected through oil cylinder (23) and rotary oil cylinder support (14) upper end of shipping and reselling on another market, the other end of rotary oil cylinder (11) through oil cylinder ship and resell on another market (23) be connected with lift arm (4); Active column (16) is installed in the vertical columns (20); Be uniformly distributed with between active column (16) and the vertical columns (20) four guide runners (17) are housed, active column (16) is connected with vertical columns (20) with oil cylinder lower carriage (18) through oil cylinder upper bracket (13), elevating ram (19); Two safety pins (21) are equipped with in the right-hand member top of lift arm (4).
2. drilling rod hydraulic power slips according to claim 1 is characterized in that: slip insert (8) is housed on the intrados of described slips body (9); The described mud pallet (1) of scraping is double formula structure, is connected with lift arm (4) through small clevis pin with head (25), can rotate by 90 degree, and mud scraping disc (2) is fixed on through joint pin (24) and trip bolt (26) and scrapes mud pallet (1) below.
3. drilling rod hydraulic power slips according to claim 1 is characterized in that: described rotary oil cylinder (11) is connected with hydraulic control unit through pipe joint with elevating ram (19); Hydraulic control unit is made up of rotary oil cylinder two-way one-way throttle valve (27), rotary oil cylinder hydraulic control one-way valve (28), rotary oil cylinder three position four-way electromagnetic valve (29), elevating ram three position four-way electromagnetic valve (30), elevating ram hydraulic control one-way valve (31), elevating ram two-way one-way throttle valve (32); Hydraulic control unit is connected with the rig main hydraulic system through pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203036543U CN202249834U (en) | 2011-08-19 | 2011-08-19 | Hydraulic power slip for drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203036543U CN202249834U (en) | 2011-08-19 | 2011-08-19 | Hydraulic power slip for drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249834U true CN202249834U (en) | 2012-05-30 |
Family
ID=46111093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203036543U Expired - Fee Related CN202249834U (en) | 2011-08-19 | 2011-08-19 | Hydraulic power slip for drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249834U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287149A (en) * | 2011-08-19 | 2011-12-21 | 荆州市现代石油科技发展有限公司 | Hydraulic power slip of drill rod |
| US9732570B2 (en) | 2014-01-13 | 2017-08-15 | China Petroleum & Chemical Corporation | Apparatus for tripping oil pipe and system for automatic well workover |
| CN113236154A (en) * | 2021-06-11 | 2021-08-10 | 中煤科工集团西安研究院有限公司 | Well mouth screwing-off device and electric control system of rescue vehicle-mounted drilling machine for coal mine |
-
2011
- 2011-08-19 CN CN2011203036543U patent/CN202249834U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287149A (en) * | 2011-08-19 | 2011-12-21 | 荆州市现代石油科技发展有限公司 | Hydraulic power slip of drill rod |
| CN102287149B (en) * | 2011-08-19 | 2013-04-24 | 荆州市现代石油科技发展有限公司 | Hydraulic power slip of drill rod |
| US9732570B2 (en) | 2014-01-13 | 2017-08-15 | China Petroleum & Chemical Corporation | Apparatus for tripping oil pipe and system for automatic well workover |
| CN113236154A (en) * | 2021-06-11 | 2021-08-10 | 中煤科工集团西安研究院有限公司 | Well mouth screwing-off device and electric control system of rescue vehicle-mounted drilling machine for coal mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140819 |
|
| EXPY | Termination of patent right or utility model |