CN203347742U - Kelly bar self-restoration splash-proof device - Google Patents
Kelly bar self-restoration splash-proof device Download PDFInfo
- Publication number
- CN203347742U CN203347742U CN 201320410276 CN201320410276U CN203347742U CN 203347742 U CN203347742 U CN 203347742U CN 201320410276 CN201320410276 CN 201320410276 CN 201320410276 U CN201320410276 U CN 201320410276U CN 203347742 U CN203347742 U CN 203347742U
- Authority
- CN
- China
- Prior art keywords
- valve
- kelly bar
- valve body
- valve seat
- splash
- 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
Landscapes
- Details Of Valves (AREA)
- Earth Drilling (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a kelly bar self-restoration splash-proof device which solves the problem of poor wear-resisting effect and short service life of the existing device. The kelly bar self-restoration splash-proof device particularly comprises a connector body, wherein a step is arranged in the connector body, a valve seat is arranged on the step, the upper end surface of the valve seat is limited through a blocking ring, and a valve assembly is sealed on an inner conical surface of the valve seat in a sitting mode. The valve assembly comprises a valve body and a supporting rod, wherein a wiper block is fixed on the upper end surface of the valve body, the valve body is fixed at the top end of the supporting rod, and a drill bar filter is arranged between the supporting rod and a drill bar. According to the kelly bar self-restoration splash-proof device, the valve body is pushed open by the supporting force of the supporting rod, a kelly bar drilling liquid splash-proof valve is closed by means of the dead weight of the valve body and the supporting rod, and therefore, the kelly bar self-restoration splash-proof device has long service life. Furthermore, a wear-resisting block is arranged on the outer wall of the connector body, so that the wear-resisting performance of the device is remarkably improved.
Description
Technical field
The utility model relates to the device that prevents the drilling fluid splash that is arranged on the kelly bar bottom in a kind of oil and gas well drilling construction.
Background technology
In Process of Oil Well Drilling, make up a joint while dismantling the joint between kelly bar and drilling rod, the drilling fluid in kelly bar can be from the joint splash dismantled to rig floor.What so not only can make workplace become is muddy and slippery, and making to work together is easy to produce unsafe problem, also can waste drilling fluid.User's drilling rod drilling fluid plash proof valve can be avoided the splash of drilling fluid, but existing plash proof valve, all to rely on the pressure of drilling fluid to back down the one way valve with spring compression, exist easy erosion damage, short serious problems of life-span at the valve seal place, cause the plash proof valve of various patterns all to can not get extensive use.Due to being widely used of liquid gas tong, can form at the joint external cylindrical surface of joint pin end the phenomenon that wearing and tearing diminish, existing technology can't reach abrasionproof effect preferably.
Summary of the invention
In order to overcome the deficiency of existing kelly bar drilling fluid plash proof valve, the utility model provides a kind of kelly bar Self-resetting anti-splash device, and this device abrasion resistance is good, long service life.
In order to realize the foregoing invention purpose, the technical solution adopted in the utility model is: a kind of kelly bar Self-resetting anti-splash device, comprise joint body, the upper port of joint body is provided with internal thread, the lower port threaded connection drill stem, be provided with step in joint body, be equipped with valve seat on step, retainer ring spacing is passed through in the upper surface of valve seat, set the valve assembly on the valve seat inner conical surface, described valve assembly, comprise valve body and pole, the upper surface of valve body is wiper block fixedly, the top standing valve body of pole; Between pole and drilling rod, boring rod filter is set.
Above-mentioned valve assembly, also comprise intermediate, described intermediate has the inside and outside conical surface, the male cone (strobilus masculinus) of intermediate agrees with mutually with the inner conical surface of valve seat, agree with mutually with the inner conical surface of intermediate the lower surface of valve body, the upper surface of intermediate is wiper block fixedly, and step is set on pole, and intermediate is enclosed within on the pole between valve body and step.
Be provided with sealing ring between the mating face of preferred above-mentioned valve body and valve seat or valve body and intermediate or intermediate and valve seat.
For preventing forgetting at work the placement boring rod filter, thereby make the drilling fluid passage can not be by the risk of backing down and pump occurring suppressing, between the bottom of valve seat and the step in joint body, be provided with spring.
In order to improve the abrasion resistance of joint body, at the rectangular groove of joint body external process, rectangular groove is to be parallel to the joint body axis, in rectangular groove, inlays wear-resistant block.
Beneficial effect: the utility model utilizes the supporting force of pole to back down the valve body, and closes kelly bar drilling fluid plash proof valve by valve body and pole deadweight, thereby has longer application life; Forget at work in the situation of putting boring rod filter and can not suppress pump; The outer wall of joint body arranges wear-resistant block, and the abrasion resistance of device improves greatly; In a word, kelly bar Self-resetting anti-splash device function admirable of the present utility model, easy to use, be suitable for applying.
The accompanying drawing explanation
Fig. 1 be the utility model embodiment 1 partly cut open structural representation.
Fig. 2 be the utility model embodiment 2 partly cut open structural representation.
Fig. 3 be the valve body partly cut open structural representation.
Fig. 4 be valve body and intermediate partly cut open structural representation.
Fig. 5 is that the joint body that processes wear-resistant block on outer wall partly cuts open structural representation.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is further described:
Embodiment 1:
As shown in Figure 1: a kind of kelly bar Self-resetting anti-splash device, comprise joint body 1, the upper port of joint body 1 is provided with internal thread, lower port threaded connection drill stem 15, be provided with step in joint body 1, be equipped with valve seat 5 on step, the sidewall of valve seat 5 arranges sealing ring 6, the upper surface of valve seat 5 is spacing by back-up ring 4, set the valve assembly on valve seat 5 inner conical surfaces, described valve assembly, comprise valve body 3 and pole 7, the upper surface of valve body 3 is wiper block 2 fixedly, the top standing valve body 3 of pole 7; 15, pole 7 and drilling rod arrange boring rod filter 11.Set the sealing on valve seat 5 in order to ensure valve body 3, shown in Fig. 3: sealing ring 12 is set on valve body 3.
The kelly bar Self-resetting anti-splash device of embodiment 1 at work, when making up a joint, the pressure drop that now borehole pump stops drilling fluid being bordering on zero, to dismantle at the pin thread place of joint body 1 bottom, when dismantling and lifting from the female joint of joining with it, the supporting force of pole 7 loses, and now valve body 3 drops on valve seat 5 and to form sealing, prevents the drilling fluid splash in kelly bar and goes out; When connecting the single pin thread that screws on joint body 1 bottom, the boring rod filter 11 that is sitting in drilling rod 15 box end contacts with pole, and plash proof valve is propped valve body 3 by the effect of pole 7, form the passage that drilling fluid is passed through, at this moment drillng operation normally.
Embodiment 2:
As the improvement to embodiment 1, shown in Fig. 2: the valve assembly in embodiment 1, also comprise intermediate 9, wherein, intermediate 9 has the inside and outside conical surface, the male cone (strobilus masculinus) of intermediate 9 agrees with mutually with the inner conical surface of valve seat 5, agree with mutually with the inner conical surface of intermediate 9 lower surface of valve body 3, and change into wiper block 2 is set on the upper surface of intermediate 9, and valve body 3 is fixed on the top of pole 7, on pole 7, step is set, intermediate 9 is enclosed within on the pole 7 between valve body 3 and step.Shown in Fig. 4: sealing ring 12 is set on valve body 3, sealing ring 13 is set respectively on intermediate 9, thereby guarantee airtight the setting of 5 of valve body 3 and 9, intermediate and intermediate 9 and valve seats.
More unobstructed for what drilling fluid was flowed in plash proof valve, embodiment 2 is by valve body 3 volume-diminished in embodiment 1, and increase and intermediate 9, and pole 7 has been carried out to corresponding change.In work, pole is first backed down valve body 3, then backs down intermediate 9.When making up a joint, dismantle at the pin thread place of joint body 1 bottom, when dismantling and lifting from the female joint of joining with it, the supporting force of pole 7 loses, now intermediate 9 drops on successively on valve seat 5 and forms sealing with valve body 3, prevents the drilling fluid splash in kelly bar and goes out; When connecting the single pin thread that screws on joint body 1 bottom, the boring rod filter 11 that is sitting in drilling rod 15 box end contacts with pole, and plash proof valve is first propped valve body 3 by the effect of pole 7, then intermediate 9 is propped, the passage that formation is passed through drilling fluid, at this moment normal drillng operation.
Place boring rod filter 11 for preventing from forgetting at work, thereby make the drilling fluid passage can not be by the risk of backing down and pump occurring suppressing, as shown in Figure 2: between the bottom of valve seat 5 and the step in joint body 1, be provided with spring 10.In work, can lean on the pressure Compress Spring 10 of drilling fluid to make valve seat 5 descending and open passage, prevent from suppressing pump.
In order to improve the abrasion resistance of joint body 1, as shown in Figure 5: at the rectangular groove of joint body 1 external process, rectangular groove is to be parallel to the joint body axis, inlays wear-resistant block 14 in rectangular groove.
Claims (5)
1. a kelly bar Self-resetting anti-splash device, comprise joint body, the upper port of joint body is provided with internal thread, the lower port threaded connection drill stem, it is characterized in that: in described joint body, be provided with step, be equipped with valve seat on step, the upper surface of valve seat, by retainer ring spacing, has set the valve assembly on the valve seat inner conical surface, described valve assembly, comprise valve body and pole, the upper surface of valve body is wiper block fixedly, the top standing valve body of pole; Between pole and drilling rod, boring rod filter is set.
2. kelly bar Self-resetting anti-splash device according to claim 1, it is characterized in that: described valve assembly, also comprise intermediate, this intermediate has the inside and outside conical surface, the male cone (strobilus masculinus) of intermediate agrees with mutually with the inner conical surface of valve seat, and agree with mutually with the inner conical surface of intermediate the lower surface of valve body, and the upper surface of intermediate is wiper block fixedly, step is set on pole, and intermediate is enclosed within on the pole between valve body and step.
3. kelly bar Self-resetting anti-splash device according to claim 1 and 2, is characterized in that: between the mating face of above-mentioned valve body and valve seat or valve body and intermediate or intermediate and valve seat, be provided with sealing ring.
4. kelly bar Self-resetting anti-splash device according to claim 1 and 2 is characterized in that: between the bottom of valve seat and the step in joint body, be provided with spring.
5. kelly bar Self-resetting anti-splash device according to claim 1 and 2, it is characterized in that: at the rectangular groove of joint body external process, rectangular groove is parallel to the joint body axis, in rectangular groove, inlays wear-resistant block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320410276 CN203347742U (en) | 2013-07-10 | 2013-07-10 | Kelly bar self-restoration splash-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320410276 CN203347742U (en) | 2013-07-10 | 2013-07-10 | Kelly bar self-restoration splash-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347742U true CN203347742U (en) | 2013-12-18 |
Family
ID=49747652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320410276 Expired - Lifetime CN203347742U (en) | 2013-07-10 | 2013-07-10 | Kelly bar self-restoration splash-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203347742U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505527A (en) * | 2019-01-10 | 2019-03-22 | 西南石油大学 | A kind of connector and application method for drilling rod and marine riser abrasionproof |
-
2013
- 2013-07-10 CN CN 201320410276 patent/CN203347742U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505527A (en) * | 2019-01-10 | 2019-03-22 | 西南石油大学 | A kind of connector and application method for drilling rod and marine riser abrasionproof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203716929U (en) | Deep well safety valve | |
| CN202810736U (en) | Thermal recovery horizontal well expansion pipe hanger | |
| CN201851078U (en) | Underground isolation bridge plug | |
| CN203347742U (en) | Kelly bar self-restoration splash-proof device | |
| CN200992982Y (en) | One-trip string hydraulic setting squeezing bridge plug | |
| CN202325333U (en) | Expandable liner hanger | |
| CN202055799U (en) | Midway-setting prevention recyclable bridge plug for oilfield downhole operation | |
| CN103982160A (en) | Novel pressure balancing type plug valve | |
| CN204299514U (en) | A kind of by-pass valve of screwdrill | |
| CN202946129U (en) | High-stability pressure-differential type sliding bushing | |
| CN102839941A (en) | Extensible slurry filling device for running casing | |
| CN206233895U (en) | Water plugging of horizontal well process pipe string | |
| CN104879589A (en) | Self-locking type quick joint | |
| CN201723196U (en) | Self-sealing setting ball seat | |
| CN205532479U (en) | Oil field electrical submersible pump pump production oil well is with multi -functional well -flushing valve | |
| CN211115870U (en) | Sand washing liquid returning stop valve | |
| CN203412562U (en) | Seat-seal short joint device | |
| CN204754860U (en) | Proclaim oneself compression packer | |
| CN204139998U (en) | A kind of blowout-prevention anti-falling integral type helicoid hydraulic motor | |
| CN204729815U (en) | Self locking quick connector | |
| CN203570264U (en) | Cavity sleeved type reverse circulation valve | |
| CN111101888A (en) | Novel soluble bridge plug | |
| CN201554424U (en) | Oil casing ommunicating device | |
| CN211524756U (en) | Oil recovery well head safety device | |
| CN203515455U (en) | Perforation fracturing packer device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |