CN205189793U - Multi -functional drilling rod mud splashproof valve - Google Patents
Multi -functional drilling rod mud splashproof valve Download PDFInfo
- Publication number
- CN205189793U CN205189793U CN201520952830.4U CN201520952830U CN205189793U CN 205189793 U CN205189793 U CN 205189793U CN 201520952830 U CN201520952830 U CN 201520952830U CN 205189793 U CN205189793 U CN 205189793U
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- hole
- piston
- drilling rod
- power connector
- spring
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Abstract
The utility model discloses a multi -functional drilling rod mud splashproof valve for between power shaft and the drilling rod, including the valve main part, the upper end of main part is equipped with the power connector of being connected with the power shaft, and the lower extreme of main part is equipped with the drilling rod connection port who is connected with the drilling rod, the main part is provided with a through -hole that link up from top to bottom between power connector and drilling rod connection port, the through -hole is provided with seal cover and piston downwards from the power connector in proper order, and the centre bore and the through -hole of seal cover have a perfect understanding, the piston can reciprocate in the through -hole, the spring that sets up in the through -hole, and the spring will the piston rebound is sealed with the centre bore of seal cover. The utility model has the characteristics of simple structure, safe and reliable, the splashproof effect is showing. Be convenient for install and dismantle, do benefit to and maintain the maintenance, can bear the high pressure, have the check valve function.
Description
Technical field
The utility model belongs to drilling equipment, particularly a kind of Multifunctional drill rod mud plash proof valve, is a kind of mud plash proof valve relating to kelly bar.
Background technology
Along with the fast development of national economy, develop cooperatively constantly strengthen with international petroleum market, country, while increasing energy exploration exploitation increases energy production, also strengthens the requirement of the aspects such as quality, environment, safety, health.After oil drilling makes up a joint or pulls out of hole and dismantles kelly bar, always have a lot of drilling fluid and flow to offshore boring island in kelly bar hydrophthalmia.Like this, not only waste drilling fluid, but also meeting adverse condition, harm drilling well worker's is healthy.Simultaneously along with the progress of drilling technology, deep-well and high-pressure well increase, and require the drilling rod increasing number connected when drilling well, simultaneously stricter to the reliability requirement of jet-preventing tool high pressure sealing performance.
Summary of the invention
The purpose of this utility model is to provide a kind of Multifunctional drill rod mud plash proof valve, is the improvement carried out slurry anti-splash valve of square shaft, makes it have multifunctionality, meet the demand of oil market.
The purpose of this utility model is achieved through the following technical solutions.
A kind of Multifunctional drill rod mud plash proof valve, for between line shaft and drilling rod, comprise valve body, the upper end of main body is provided with the power connector be connected with line shaft, the lower end of main body is provided with the drilling rod connectivity port be connected with drilling rod, described main body is provided with the through hole of a up/down perforation between power connector and drilling rod connectivity port, wherein, described through hole is sequentially set with sealing shroud and piston downwards from power connector, centre bore and the through hole of sealing shroud are through, described piston can move up and down in through-holes, the spring arranged in through-holes, described piston moves up and to be sealed by the centre bore of sealing shroud by spring.
Scheme is further: the hole back-up ring, spacer, the semicircle back-up ring location that arrange of order is fixing downwards by power connector for described sealing shroud.
Scheme is further: the sealing between the centre bore of described sealing shroud and piston, is the bellmouth that arranged at sealed end by centre bore and cooperatively interacts sealing at the bullet that piston nose is arranged.
Scheme is further: described outside piston is up and down in "T"-shaped big column and small column, described through hole is provided with annular protrusion, described spring housing is on the small column of "T"-shaped cylindrical, spring one end withstands on the annular protrusion of described through hole, on the big column that the spring other end withstands on "T"-shaped cylindrical by piston upwards ejection on sealing shroud, through hole is sealed.
Scheme is further: when removing line shaft, described subject impetus connector also connects a relief valve, described relief valve comprises a releasing-joint be connected with power connector, releasing-joint is axially arranged with the through hole running through relief valve body, body has a release aperture be communicated with through hole, be provided with a release lever in through hole, releasing-joint is stretched out for withstanding on described piston in release lever one end, has a lock bolt withstood on release lever on the body.
Compared with prior art, the beneficial effects of the utility model:
1. the utility model has structure simply, safe and reliable, the feature of splashproof Be very effective.
2. the utility model long service life, is convenient to installing/dismounting, is beneficial to maintaining.
3. the utility model adopts metal sealing, can bear high pressure, have non-return valve function.
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model plash proof valve structural representation;
Fig. 2 is the utility model relief valve structural representation.
Detailed description of the invention
A kind of Multifunctional drill rod mud plash proof valve, for between line shaft and drilling rod, as shown in Figure 1, comprise valve body 1, the upper end of main body is provided with the power connector 101 be connected with line shaft, the lower end of main body is provided with the drilling rod connectivity port 102 be connected with drilling rod, described main body is provided with the through hole 103 of a up/down perforation between power connector and drilling rod connectivity port, wherein, described through hole is sequentially set with sealing shroud 5 and piston 7 downwards from power connector, the centre bore 501 of sealing shroud is through with through hole, described piston can move up and down in through-holes, the spring 9 arranged in through-holes, spring promotes piston, described piston is moved up the centre bore of sealing shroud sealed, sealing shroud wherein and piston are metal material, as stainless steel.
In embodiment: the hole back-up ring 2 that described sealing shroud is sequentially arranged downwards by power connector, spacer 3, semicircle back-up ring 4 are located fixing; Sealed by " O " RunddichtringO 6 between sealing shroud and through-hole wall.
In embodiment: the sealing between the centre bore of described sealing shroud and piston, be the bellmouth 502 that arranged at sealed end by centre bore and cooperatively interact sealing at the bullet 701 that piston nose is arranged.
In embodiment: described outside piston is up and down in "T"-shaped big column 702 and small column 703, described through hole is provided with annular protrusion, described spring housing is on the small column of "T"-shaped cylindrical, spring one end withstands on the annular protrusion 104 of described through hole, on the big column that the spring other end withstands on "T"-shaped cylindrical by piston upwards ejection on sealing shroud, through hole is sealed, wherein: described piston big column, to seal respectively by Yx sealing ring 8 and 10 between small column and through-hole wall.
In embodiment: when removing line shaft, also connect a relief valve between line shaft and plash proof valve, that is: described subject impetus connector also connects a relief valve; Relief valve as shown in Figure 2, described relief valve comprises a releasing-joint 12 be connected with power connector, releasing-joint is axially arranged with the through hole 1201 running through relief valve body, body has a release aperture be communicated with through hole 1202, a release lever 13 is provided with in through hole, releasing-joint is stretched out for withstanding on described piston in release lever one end, has a lock bolt 11 withstood on release lever on the body, by the release of lock bolt Co ntrolled release bar.
Plash proof valve described in embodiment prevents from mud from exosmosing spattering full raised platform around a well and the person except having, and protection mud reduces costs, and improves outside the function of field operation environment, also has the function of one way valve, can use as jet-preventing tool; Be furnished with releasing tool in addition, can also have and rob connection function.
Operating principle
The operating principle of plash proof valve is: sealing shroud is fixed in main body, and piston can produce displacement under the effect of external force.When termination of pumping, namely before dismantling kelly bar, the hydrophthalmia of kelly bar is blocked by piston under the action of the spring.When normal drilling well, due to the existence of pump pressure, liquid pressure acts on piston, and the resistance that fluid pressure overcomes spring makes piston move down, drilling fluid normal circulation.
Plash proof valve is connected on drilling tool position required between line shaft and drilling rod, when down-hole occur well kick, blowout or overflow time, piston moves upward under the effect of down-hole pressure and spring, piston upwards forms conical seal (contact) face near sealing shroud under the effect of down-hole pressure and spring, and upwards blowout, well kick etc. avoid the generation of serious accident in drilling tool to prevent drilling fluid.
When using with special-purpose assorted releasing tool, pushing down piston make spring-compressed with release lever, piston and sealing shroud are thrown off and are moved down a segment distance, are locked by release lever with lock bolt.Now release lever makes piston remain on open position.When bringing out well kick (overflow) due to reasons such as swabbing actions in trip-out process, when in well, mud or oil, vapour, water etc. are from the tool joint ejection dismantled, being robbed by this instrument is rapidly connected on drilling rod, in well, mud can be flowed out by this instrument, turns on lock bolt release lever and just can make valve closing after connecting.
The feature of this plash proof valve is when being in closed condition without valve when pump pressure, and when there being pump pressure, valve is in normally open, can close sealing when down-hole pressure increases suddenly.
Claims (5)
1. a Multifunctional drill rod mud plash proof valve, for between line shaft and drilling rod, comprise valve body, the upper end of main body is provided with the power connector be connected with line shaft, the lower end of main body is provided with the drilling rod connectivity port be connected with drilling rod, described main body is provided with the through hole of a up/down perforation between power connector and drilling rod connectivity port, it is characterized in that, described through hole is sequentially set with sealing shroud and piston downwards from power connector, centre bore and the through hole of sealing shroud are through, described piston can move up and down in through-holes, the spring arranged in through-holes, described piston moves up and to be sealed by the centre bore of sealing shroud by spring.
2. plash proof valve according to claim 1, is characterized in that, the hole back-up ring that described sealing shroud is sequentially arranged downwards by power connector, spacer, semicircle back-up ring location is fixing.
3. plash proof valve according to claim 1, is characterized in that, the sealing between the centre bore of described sealing shroud and piston, is the bellmouth that arranged at sealed end by centre bore and cooperatively interacts sealing at the bullet that piston nose is arranged.
4. plash proof valve according to claim 1, it is characterized in that, described outside piston is up and down in "T"-shaped big column and small column, described through hole is provided with annular protrusion, described spring housing is on the small column of "T"-shaped cylindrical, spring one end withstands on the annular protrusion of described through hole, on the big column that the spring other end withstands on "T"-shaped cylindrical by piston upwards ejection on sealing shroud, through hole is sealed.
5. plash proof valve according to claim 1, it is characterized in that, when removing line shaft, described subject impetus connector also connects a relief valve, described relief valve comprises a releasing-joint be connected with power connector, releasing-joint is axially arranged with the through hole running through relief valve body, body has a release aperture be communicated with through hole, a release lever is provided with in through hole, releasing-joint is stretched out for withstanding on described piston in release lever one end, has a lock bolt withstood on release lever on the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520952830.4U CN205189793U (en) | 2015-11-26 | 2015-11-26 | Multi -functional drilling rod mud splashproof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520952830.4U CN205189793U (en) | 2015-11-26 | 2015-11-26 | Multi -functional drilling rod mud splashproof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205189793U true CN205189793U (en) | 2016-04-27 |
Family
ID=55782793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520952830.4U Expired - Fee Related CN205189793U (en) | 2015-11-26 | 2015-11-26 | Multi -functional drilling rod mud splashproof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205189793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057732A (en) * | 2018-09-30 | 2018-12-21 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of slurry type grouting circulator and its application method |
-
2015
- 2015-11-26 CN CN201520952830.4U patent/CN205189793U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057732A (en) * | 2018-09-30 | 2018-12-21 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of slurry type grouting circulator and its application method |
| CN109057732B (en) * | 2018-09-30 | 2023-11-07 | 中国石油天然气集团有限公司 | Slurry type grouting circulating device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170727 Granted publication date: 20160427 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200727 Granted publication date: 20160427 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20181126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |