CN201851045U - Hydraulic clamp for shackle of boring rod - Google Patents
Hydraulic clamp for shackle of boring rod Download PDFInfo
- Publication number
- CN201851045U CN201851045U CN2010206162882U CN201020616288U CN201851045U CN 201851045 U CN201851045 U CN 201851045U CN 2010206162882 U CN2010206162882 U CN 2010206162882U CN 201020616288 U CN201020616288 U CN 201020616288U CN 201851045 U CN201851045 U CN 201851045U
- Authority
- CN
- China
- Prior art keywords
- main body
- fixed
- clamp main
- hydraulic cylinder
- clamping
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides a hydraulic clamp for a shackle of a boring rod, relating to the technical field of drilling and pipeline systems. The hydraulic clamp consists of a fixed clamp, a shackle clamp and a walking device (8); the fixed clamp and the shackle clamp are arranged in parallel; a pair of push-pull hydraulic cylinders (7) is connected with a push-pull rod; and the walking device (8) matched with a guideway of a boring machine is fixed on the fixed clamp. The hydraulic clamp is used for upper shackles and shackles of large boring rods, the clamping action is simple and reliable, the buckling torque is large, and the clamping operation is simple.
Description
Technical field
The utility model is a kind of hydraulic tongs of drilling rod shackle.Relate to and creeping into and the pipe-line system technical field.
Background technology
Occur the over distance orientation in recent years both at home and abroad and drilled construction more, 09 year domestic has finished 3000 meters long orientations and has drilled engineering more, it is reported that this project original plan crossing length is 4500 meters, the back is excessive because of drilling rod in the construction bears moment of torsion, has caused control to the uncontrollable probe degree of accuracy.Therefore crossing length is dropped to 3000 meters.According to construction experience, in horizontal directional drill passed through, the thrust of drilling rod and moment of torsion all can increase gradually along with the increase of length at drilling rod.Though can improve the length of passing through by through technology, still need grow apart from creeping into, because of drilling rod can't cause bending, fracture by bearing thrust but still can't avoid docking back rig kelly bar.Therefore for satisfying the requirement that long distance is passed through, improve the ability to work of drilling tool and equipment in the construction, design a kind of hydraulic tongs of shackle of big drilling rod clamping, to cover the shortage.
The utility model content
The purpose of this utility model be design a kind of grow distance when creeping into heavy caliber drilling rod holding action simple and reliable, dash the hydraulic tongs of button moment of torsion drilling rod shackle big, simple to operate.
The technical solution of the utility model is to utilize original rig pumping plant and control device, and the impact tong device that is installed on the borer rail is produced in design, guarantees big drilling rod clamping.
The structure of hydraulic tongs such as Fig. 1-shown in Figure 7 are by fixing pincers, unload clasp forceps and running gear 8 is formed.Fixing pincers are arranged side by side with impact tong, are connected with pull bar by a pair of push-and-pull hydraulic cylinder 7, and the running gear 8 that cooperates with borer rail is fixed on the fixing pincers.
Described fixedly pincers are the fixed clamp part, as shown in Figure 1 and Figure 4, and by fixedly clamp main body 6, clamping hydraulic cylinder 4, fixed disk 5 are formed; The clamping hydraulic cylinder 4 that is fixed with 120 ° at 5, three intervals of fixed disk on fixing clamp main body 6 passes fixed disk 5 hollow to fixed disk 5, and the clamping bar head of three clamping cylinders 4 is fixed with the block teeth 9 of roof pressure on big drilling rod; Fixing both sides, the clamp main body 6 base push-and-pull hydraulic cylinder 7 that respectively is connected, the other end of pull bar and shackle clamp main body 1 are connected;
Its three clamping hydraulic cylinders 4 move simultaneously, promote clamping block teeth 9, and there is the clamping tooth on block teeth 9 tops, guarantee the frictional force of clamping, prevent big drilling rod rotation; On the fixing pincers push-and-pull hydraulic cylinder 7 is arranged, promote and spur whole impact tong, adjust the distance of impact tong and fixing pincers, guarantee effective clamping of drilling rod;
The described clasp forceps that unloads is the drilling rod rotating part, as sees Fig. 1-shown in Figure 3, by shackle clamp main body 1, dash button hydraulic cylinder 2, dash button rotating disk 3, clamping hydraulic cylinder 4 is formed; Equally distributed three clamping hydraulic cylinders 4 dash from outer insertion and buckle in the center hole of rotating disk 3, dash button rotating disk 3 and are set in the macropore at shackle clamp main body 1 middle part; Dashing button hydraulic cylinder 2 is installed in towards between button rotating disk 3 and the shackle clamp main body 1;
Wherein dashing button rotating disk 3 is set in the macropore of shackle clamp main body 1, one-tenth is rotationally connected, dash the clamping hydraulic cylinder 4 that 120 ° at three intervals are arranged on the button rotating disk 3 and pass to dash and buckle rotating disk 3 and buckle the hollow of rotating disk 3 to dashing, the clamping bar head of three clamping hydraulic cylinders 4 is fixed with the block teeth 9 of roof pressure on drilling rod greatly; Shackle clamp main body 3 is connected with triangle impact tong frame, the shackle clamp main body 1 base one side push-and-pull hydraulic cylinder 7 that is connected, and the other end of push-and-pull hydraulic cylinder 7 and shackle clamp main body 1 side top are connected;
Three clamping hydraulic cylinder 4 (see figure 6)s are fixed on to dash buckles on the rotating disk 3, its three clamping hydraulic cylinders 4 move simultaneously, promote clamping block teeth 9, there is the clamping tooth on block teeth 9 tops, guarantee the frictional force of clamping, dash button hydraulic cylinder 2 push-and-pulls drive and dash 3 rotations of button rotating disk, thereby drive big drilling rod rotation, finish and link closely and the shackle action;
It has two running gear 8 (see figure 7)s, vertically is fixed on fixedly clamp main body 6 bases, is made up of walking gear 10, reducer 11, hydraulic motor 12 for every; Hydraulic motor 12 is connected with walking gear 10 through reducer 11, the tooth bar engagement on walking gear 10 and the borer rail; Hydraulic motor 12 drives the walking gear 10 of ends, the tooth bar engagement on walking gear 10 and the body, and then promote or the fixing pincers of pulling and impact tong make it and can slide on borer rail.
Wherein:
The fixing round-meshed regular hexagon cylinder in the center that is shaped as of clamp main body 6, the both sides level that the regular hexagon cylinder is relative is put, fixedly the side above the clamp main body 6 regular hexagon cylinders has clamping hydraulic cylinder 4 to pass through to the fixedly hole at clamp main body 6 centers, and regular hexagon cylinder limit respectively has at interval other two clamping hydraulic cylinders 4 to pass fixedly clamp main body 6 to the fixing hole at clamp main body 6 centers therewith on one side;
Dash the round-meshed regular hexagon cylinder in the center that is shaped as of button rotating disk 3, the both sides level that the regular hexagon cylinder is relative is put, one side be the extend into drops adjacent with the top, this upper prong has connection to dash the hole towards button bar of button hydraulic cylinder 2;
Dash button rotating disk 3 usefulness bearing arrangements and be connected on the impact tong main body 1, clamping hydraulic cylinder 4 is fixed on to dash and buckle on the hexagon side of rotating disk 3, and an end that dashes button hydraulic cylinder 2 is hinged on the impact tong main body 1 other end and is hinged on and dashes on the flange of detaining rotating disk 3; Fixed disk 5 is fixed on fixedly on clamp main body 6 sides, and the clamping hydraulic cylinder is fixed by bolts on the fixed disk 5, and running gear 8 is fixed by bolts to fixedly on clamp main body 6 front consoles; One end of push-and-pull hydraulic cylinder 7 is hinged on fixedly on the clamp main body 6, and the other end is fixed on the impact tong main body 1.
The utility model is applicable to the upward button and the shackle of large-scale drilling rod, and holding action is simple and reliable, and it is big, simple to operate to dash the button moment of torsion.
Description of drawings
Fig. 1 drilling rod dashes button hydraulic tongs elevation
Fig. 2 drilling rod dashes button hydraulic tongs vertical view
Fig. 3 impact tong main part lateral view
Fig. 4 is clamp main body part lateral view fixedly
Fig. 5 impact tong main body and the rotating disk johning knot composition of blurting out
Fig. 6 clamping hydraulic cylinder structure figure
Fig. 7 running gear structure chart
Wherein 1-impact tong main body 2-dashes the button hydraulic cylinder
3-dashes button rotating disk 4-clamping hydraulic cylinder
5-fixed disk 6-is clamp main body fixedly
7-push-and-pull hydraulic cylinder 8-running gear
9-block teeth 10-walking gear
11-reducer 12-hydraulic motor
The specific embodiment
Embodiment. this example is the experimental prototype on the DD-1330 directional drilling machine, and the drilling rod of this rig is 12 ", clamping range reaches diameter 400mm.
The structure that this is routine such as Fig. 1-shown in Figure 7 are by fixing pincers, unload clasp forceps and running gear 8 is formed.Fixing pincers are arranged side by side with impact tong, are connected with pull bar by a pair of push-and-pull hydraulic cylinder 7, and the running gear 8 that cooperates with borer rail is fixed on the fixing pincers.
Described fixedly pincers are the fixed clamp part, as shown in Figure 1 and Figure 4, and by fixedly clamp main body 6, clamping hydraulic cylinder 4, fixed disk 5 are formed; The clamping hydraulic cylinder 4 that is fixed with 120 ° at 5, three intervals of fixed disk on fixing clamp main body 6 passes fixed disk 5 hollow to fixed disk 5, and the clamping bar head of three clamping cylinders 4 is fixed with the block teeth 9 of roof pressure on big drilling rod; Fixing both sides, the clamp main body 6 base push-and-pull hydraulic cylinder 7 that respectively is connected, the other end of pull bar and shackle clamp main body 1 are connected;
The described clasp forceps that unloads is the drilling rod rotating part, as sees Fig. 1-shown in Figure 3, by shackle clamp main body 1, dash button hydraulic cylinder 2, dash button rotating disk 3, clamping hydraulic cylinder 4 is formed; Equally distributed three clamping hydraulic cylinders 4 dash from outer insertion and buckle in the center hole of rotating disk 3, dash button rotating disk 3 and are set in the macropore at shackle clamp main body 1 middle part; Dashing button hydraulic cylinder 2 is installed in towards between button rotating disk 3 and the shackle clamp main body 1.
Wherein dashing button rotating disk 3 is set in the macropore of shackle clamp main body 1, one-tenth is rotationally connected, dash the clamping hydraulic cylinder 4 that 120 ° at three intervals are arranged on the button rotating disk 3 and pass to dash and buckle rotating disk 3 and buckle the hollow of rotating disk 3 to dashing, the clamping bar head of three clamping hydraulic cylinders 4 is fixed with the block teeth 9 of roof pressure on drilling rod greatly; Shackle clamp main body 3 is connected with triangle impact tong frame, the shackle clamp main body 1 base one side push-and-pull hydraulic cylinder 7 that is connected, and the other end of push-and-pull hydraulic cylinder 7 and shackle clamp main body 1 side top are connected;
It has two running gear 8 (see figure 7)s, vertically is fixed on fixedly clamp main body 6 bases, is made up of walking gear 10, reducer 11, hydraulic motor 12 for every.Hydraulic motor 12 is connected with walking gear 10 through reducer 11, the tooth bar engagement on walking gear 10 and the borer rail.Hydraulic motor 12 drives the walking gear 10 of ends, the tooth bar engagement on walking gear 10 and the body, and then promote or the fixing pincers of pulling and impact tong make it and can slide on borer rail.
Wherein:
The fixing round-meshed regular hexagon cylinder in the center that is shaped as of clamp main body 6, the both sides level that the regular hexagon cylinder is relative is put, fixedly the side above the clamp main body 6 regular hexagon cylinders has clamping hydraulic cylinder 4 to pass through to the fixedly hole at clamp main body 6 centers, and regular hexagon cylinder limit respectively has at interval other two clamping hydraulic cylinders 4 to pass fixedly clamp main body 6 to the fixing hole at clamp main body 6 centers therewith on one side;
Dash the round-meshed regular hexagon cylinder in the center that is shaped as of button rotating disk 3, the both sides level that the regular hexagon cylinder is relative is put, one side be the extend into drops adjacent with the top, this upper prong has connection to dash the hole towards button bar of button hydraulic cylinder 2;
Dash button rotating disk 3 usefulness bearing arrangements and be connected on the impact tong main body 1, clamping hydraulic cylinder 4 is fixed on to dash and buckle on the hexagon side of rotating disk 3, and an end that dashes button hydraulic cylinder 2 is hinged on the impact tong main body 1 other end and is hinged on and dashes on the flange of detaining rotating disk 3.Fixed disk 5 is fixed on fixedly on clamp main body 6 sides, and the clamping hydraulic cylinder is fixed by bolts on the fixed disk 5, and running gear 8 is fixed by bolts to fixedly on clamp main body 6 front consoles.One end of push-and-pull hydraulic cylinder 7 is hinged on fixedly on the clamp main body 6, and the other end is fixed on the impact tong main body 1.
Concrete parameter is as follows:
Technical data
Pipe wrench clamping force: 2270.07kN;
The block teeth structure design is very crucial, since the caliber difference of clamping, the clamping area position difference of block teeth; 90 degree wedge angles are adopted in the block teeth end, can produce bigger frictional force, guarantee the drilling rod clamping, and the end adopts the gradient ramp design can guarantee to adapt to different calibers, guarantees contact area, avoid drilling rod is produced excessive clamping injury;
Clamping hydraulic cylinder 4 parameters: the fluid cylinder diameter is d=116.75mm
2, select d=200mm after getting safety factor
2Clamping hydraulic cylinder 4 strokes are according to clamping caliber scope 200-400mm, and minimum stroke is not less than 100, so choose 150mm;
Dash button rotating disk 3 and adopt arm structure, the cantilever construction compact conformation is saved the design space; Dash button rotating disk 3 and be fixed by bolts on the impact tong main body 1, adopt sliding bearing, bearing capacity is big, and is easy to maintenance;
Dash button hydraulic cylinder 2 lines of action of force apart from centre of gyration minimum range L=840mm; Get and dash button cylinder diameter 150mm, diameter of piston rod 75mm; Then dashing button cylinder effective area is 13823mm
2, dashing button cylinder thrust effective area is 17671mm
2, produce thrust: 31807kN, produce moment of torsion: 267.12kN.m;
Push-and-pull hydraulic cylinder 7: jaw overall weight 5000kg; Single push-and-pull cylinder lowest pull is got 10kN; Get push-and-pull hydraulic cylinder diameter 100mm, diameter of piston rod 50mm;
Running gear: walking gear pitch diameter 250; Select motor rotary speed 115r/mim; Hydraulic motor selects ZJM02-8 power 3kW; Reducer is selected reducer gearratio 9.2 driving torque 2kNm.
This example is through test, be used for large-scale drilling rod go up button and shackle the time, holding action is simple and reliable, dashes that to detain moment of torsion big, simple to operate.
Claims (6)
1. the hydraulic tongs of a drilling rod shackle, it is characterized in that it by fixing pincers, unload clasp forceps and running gear (8) is formed; Fixing pincers are connected with pull bar by a pair of push-and-pull hydraulic cylinder (7) with to unload clasp forceps arranged side by side, and the running gear that cooperates with borer rail (8) is fixed on to fix and clamps.
2. the hydraulic tongs of a kind of drilling rod shackle according to claim 1 is characterized in that described fixedly pincers are the fixed clamp part, by fixedly clamp main body (6), clamping hydraulic cylinder (4), fixed disk (5) are formed; Fixedly be fixed with fixed disk (5) on the clamp main body (6), the clamping hydraulic cylinder (4) that three intervals are 120 ° passes fixed disk (5) hollow to fixed disk (5), and the clamping bar head of three clamping cylinders (4) is fixed with the block teeth (9) of roof pressure on big drilling rod; Fixing clamp main body (6) both sides, the base push-and-pull hydraulic cylinder (7) that respectively is connected, the other end of pull bar and shackle clamp main body (1) are connected.
3. the hydraulic tongs of a kind of drilling rod shackle according to claim 1 is characterized in that the described clasp forceps that unloads is the drilling rod rotating part, by shackle clamp main body (1), towards detaining hydraulic cylinder (2), forming towards button rotating disk (3), clamping hydraulic cylinder (4); Dashing button rotating disk (3) is set in the macropore of shackle clamp main body (1), one-tenth is rotationally connected, dash the clamping hydraulic cylinder (4) that 120 ° at three intervals are arranged on the button rotating disk (3) and pass towards buckleing rotating disk (3) extremely towards buckleing the hollow of rotating disk (3), the clamping bar head of three clamping hydraulic cylinders (4) is fixed with the block teeth (9) of roof pressure on big drilling rod; Shackle clamp main body (3) and triangle impact tong frame are connected, respectively the be connected pull bar of a push-and-pull hydraulic cylinder (7) of shackle clamp main body (1) both sides, base; Dashing button hydraulic cylinder (2) is installed in towards between button rotating disk (3) and the shackle clamp main body (1).
4. the hydraulic tongs of a kind of drilling rod shackle according to claim 1 is characterized in that described running gear (8) has two, vertically is fixed on fixedly clamp main body (6) base, is made up of walking gear (10), reducer (11), hydraulic motor (12) for every; Hydraulic motor (12) is connected with walking gear (10) through reducer (11), the tooth bar engagement on walking gear (10) and the borer rail; Hydraulic motor (12) drives the walking gear (10) of end, the tooth bar engagement on walking gear (10) and the body, and then promote or the fixing pincers of pulling and impact tong make it and can slide on borer rail.
5. the hydraulic tongs of a kind of drilling rod shackle according to claim 1 and 2, the round-meshed regular hexagon cylinder in the center that is shaped as that it is characterized in that described fixedly clamp main body (6), the both sides level that the regular hexagon cylinder is relative is put, fixedly the side above clamp main body (6) the regular hexagon cylinder has clamping hydraulic cylinder (4) to pass through to the fixedly hole at clamp main body (6) center, and regular hexagon cylinder limit respectively has at interval in addition two clamping hydraulic cylinders (4) pass fixedly the extremely fixedly hole at clamp main body (6) center of clamp main body (6) therewith on one side.
6. the hydraulic tongs of a kind of drilling rod shackle according to claim 3, it is characterized in that the described round-meshed regular hexagon cylinder in the center that is shaped as that dashes button rotating disk (3), the both sides level that the regular hexagon cylinder is relative is put, just one side adjacent with the top extends into drops, and this upper prong has the hole towards button bar that connects towards button hydraulic cylinder (2);
Dashing button rotating disk (3) is connected on the impact tong main body (1) with bearing arrangement, clamping hydraulic cylinder (4) is fixed on to dash and buckle on the hexagon side of rotating disk (3), and an end that dashes button hydraulic cylinder (2) is hinged on impact tong main body (1) and goes up the other end and be hinged on and dash on the flange of detaining rotating disk (3); Fixed disk (5) is fixed on fixedly on clamp main body (6) side, and the clamping hydraulic cylinder is fixed by bolts on the fixed disk (5), and running gear (8) is fixed by bolts to fixedly on clamp main body (6) front console; One end of push-and-pull hydraulic cylinder (7) is hinged on fixedly on the clamp main body (6), and the other end is fixed on the impact tong main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206162882U CN201851045U (en) | 2010-11-18 | 2010-11-18 | Hydraulic clamp for shackle of boring rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206162882U CN201851045U (en) | 2010-11-18 | 2010-11-18 | Hydraulic clamp for shackle of boring rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851045U true CN201851045U (en) | 2011-06-01 |
Family
ID=44093444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206162882U Expired - Lifetime CN201851045U (en) | 2010-11-18 | 2010-11-18 | Hydraulic clamp for shackle of boring rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851045U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015922A (en) * | 2012-12-31 | 2013-04-03 | 湘潭大学 | Drill rod holding device for trenchless horizontal directional drilling machine |
| CN103527117A (en) * | 2013-10-15 | 2014-01-22 | 江苏申利达机械制造有限公司 | 360-degree continuous rotation large-torque screwing and buckling machine |
| CN104895515A (en) * | 2015-06-09 | 2015-09-09 | 湖南三一石油科技有限公司 | Petroleum drilling and production equipment, iron roughneck and clamp body |
| CN109759992A (en) * | 2019-02-03 | 2019-05-17 | 中海油能源发展股份有限公司 | A kind of multi-functional downhole tool maintenance assembling rack and application method |
| CN110863785A (en) * | 2018-08-27 | 2020-03-06 | 中国石油天然气股份有限公司 | Drilling tool fixing device |
| CN114320191A (en) * | 2022-03-14 | 2022-04-12 | 四川圣诺油气工程技术服务有限公司 | Device for tripping on wellhead pipe column for snubbing operation |
-
2010
- 2010-11-18 CN CN2010206162882U patent/CN201851045U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015922A (en) * | 2012-12-31 | 2013-04-03 | 湘潭大学 | Drill rod holding device for trenchless horizontal directional drilling machine |
| CN103527117A (en) * | 2013-10-15 | 2014-01-22 | 江苏申利达机械制造有限公司 | 360-degree continuous rotation large-torque screwing and buckling machine |
| CN103527117B (en) * | 2013-10-15 | 2015-09-16 | 江苏申利达机械制造有限公司 | A kind of 360 ° of continuous rotation high pulling torque thread screw on and-off machine |
| CN104895515A (en) * | 2015-06-09 | 2015-09-09 | 湖南三一石油科技有限公司 | Petroleum drilling and production equipment, iron roughneck and clamp body |
| CN104895515B (en) * | 2015-06-09 | 2017-04-26 | 湖南三一石油科技有限公司 | Petroleum drilling and production equipment, iron roughneck and clamp body |
| CN110863785A (en) * | 2018-08-27 | 2020-03-06 | 中国石油天然气股份有限公司 | Drilling tool fixing device |
| CN109759992A (en) * | 2019-02-03 | 2019-05-17 | 中海油能源发展股份有限公司 | A kind of multi-functional downhole tool maintenance assembling rack and application method |
| CN114320191A (en) * | 2022-03-14 | 2022-04-12 | 四川圣诺油气工程技术服务有限公司 | Device for tripping on wellhead pipe column for snubbing operation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201851045U (en) | Hydraulic clamp for shackle of boring rod | |
| US8684336B1 (en) | Top drive and crown apparatus for drilling derrick | |
| EP2817479B1 (en) | Device for a pipe handling unit and method of inserting and withdrawing a pipe string in/from a borehole | |
| CN105275415A (en) | Full-automatic continuous drilling rig | |
| CN105134108B (en) | Impact tong device and the method using the impact tong device | |
| CN109798079B (en) | Telescopic arm type iron driller | |
| CN106593310A (en) | Multifunctional drilling test stand | |
| CN105422022B (en) | A kind of oil-well rig automatic tube-arranging device | |
| CN206035417U (en) | Lever apparatus about all -hydraulic colliery rig is automatic | |
| CN103189591A (en) | Parking and automatic handling equipment of drilling rods and associated drilling machine | |
| CN111453398A (en) | Pipeline carrying device | |
| CN202380998U (en) | Push-pull manipulator of well head unmanned operation system pulling oil tube | |
| CN202832296U (en) | Drill rod lifting device on drilling equipment | |
| CN203114158U (en) | Fully-revolving casing pipe drilling machine | |
| CN105156045B (en) | Hydraulic tongs automatic pilot | |
| CN104632104B (en) | A kind of auxiliary extension bar device of truck-mounted drilling rig | |
| CN205117247U (en) | Hydraulic tong automatic operation device | |
| CN204371138U (en) | Jacking system is driven on pinion and-rack top | |
| CN208980248U (en) | A kind of guide tracked jacking system | |
| CN204002639U (en) | A kind of New cupboard button device | |
| CN101509358B (en) | Tube fitting pressing device | |
| CN213510442U (en) | Seabed investigation drilling machine | |
| CN109319686A (en) | A kind of guide tracked jacking system | |
| CN204457500U (en) | A kind of auxiliary extension bar device of truck-mounted drilling rig | |
| CN202380997U (en) | Hydraulic control device for positioning of tubing tong of unmanned operation system for tubing wellhead |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170309 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corporation Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee before: China National Petroleum Corporation Patentee before: China Petroleum and Natural Gas Pipeline Bureau |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |