CN201297150Y - Multifunctional triple ram preventer - Google Patents
Multifunctional triple ram preventer Download PDFInfo
- Publication number
- CN201297150Y CN201297150Y CNU2008201610230U CN200820161023U CN201297150Y CN 201297150 Y CN201297150 Y CN 201297150Y CN U2008201610230 U CNU2008201610230 U CN U2008201610230U CN 200820161023 U CN200820161023 U CN 200820161023U CN 201297150 Y CN201297150 Y CN 201297150Y
- Authority
- CN
- China
- Prior art keywords
- ram
- assembly
- pipe
- type flashboard
- assemblies
- 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
- 230000000712 assembly Effects 0.000 claims abstract description 13
- 238000000429 assembly Methods 0.000 claims abstract description 13
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 13
- 239000003129 oil well Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000935974 Paralichthys dentatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Earth Drilling (AREA)
Abstract
The utility model provides a multifunctional triple ram preventer which comprises a casing, a blind ram assembly and pipe ram assemblies. The blind ram assembly and two pipe ram assemblies are distributed and mounted on the main passage of the casing in an upper position, a middle position and a lower position; any two of the axial lines of the ram assemblies form an angle of 60 DEG on the horizontal section of the casing; concave-convex teeth are formed on the inner wall of a semicircular cavity at the front end of a pipe ram of the pipe ram assembly positioned at the lower position; and the blind ram assembly comprises a blind ram, a sealing ring and a long lead screw, wherein a hard alloy layer with a thickness of 0.5 to 1.0mm is applied on the contact surface of the blind ram and the sealing ring. The multifunctional triple ram preventer adopts a blind ram assembly and two pipe ram assemblies, and the concave-convex teeth are formed on the inner wall of the semicircular cavity at the front end of the pipe ram of one pipe ram assembly, so that the functions of oil well whole sealing, oil well semi-sealing and oil pipe fixation are realized. In addition, the structure is compact, the operation is convenient and the work efficiency is effectively improved.
Description
Technical field
The utility model relates to a kind of oilfield control appliance, particularly a kind of multi-functional triple ram preventer.
Background technology
Preventer is the indispensable facility that prevents in oilfield drilling and the maintenance process that well kick, gas blowout accident from adopting.Existing preventer mainly contains half-closed type single ram type perventer, full-enclosed type single ram type perventer and double ram type preventer, is used for the semiclosed sealing or the totally-enclosed sealing of well mouth of oil well.Yet, in oil recovery process, the reciprocating motion of sucker rod, Chou You lifting each time back and forth all can make tubing vibration and wriggling, causes pumping efficiency low, and oil pipe produces fatigue damage, thereby has shortened the application life of sucker rod and oil pipe; In order to make the relative fixed of oil pipe, adopt slips or anchor fluke formula anchor usually at present, but its structure is comparatively complicated, use inconvenience.In addition, in recovery process,, need in well, heat viscosity reduction to it by steam in jection usually, so just improve well temperature because the viscosity height of viscous crude is mobile poor; And the full-enclosed type flashboard assembly of existing full-enclosed type ram preventer and double ram type preventer, rubber seal resistance to elevated temperatures set between its flashboard and the joint ring is limited, can't seal high-temperature gas in the well, reduced the blowout prevention effect, and lack easy to wear, application life, need often to change, influence normal production operation.
The utility model content
For overcoming the deficiencies in the prior art part, the utility model provide a kind of rational in infrastructure, be convenient to operate, increase work efficiency and the multi-functional triple ram preventer of obturation effect, can not only seal well head effectively, prevent the generation of accidents such as well kick blowout, and have the fixedly function of oil pipe, prolong the application life of oil pipe and sucker rod.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises housing, full-enclosed type flashboard assembly and half-closed type flashboard assembly; One cover full-enclosed type flashboard assembly and two cover half-closed type flashboard assemblies are the upper, middle and lower distribution and are installed in the housing main channel, and wherein the front end semicircular cavities inwall that partly seals flashboard of a cover half-closed type flashboard assembly is provided with shaggy tooth.When in the well head oil pipe being arranged, adopt half-closed type flashboard assembly, hold oil pipe tightly, form sealing; When in the well head during no oil pipe, then adopt full-enclosed type flashboard assembly that well head is sealed; When carrying out oil producing operation fixedly during oil pipe, then adopt half-closed type flashboard assembly that flashboard has shaggy tooth with oil pipe screens, fixing, thereby reach half envelope, full oil sealing well and the fixing function of oil pipe.
The axis of an above-mentioned cover full-enclosed type flashboard assembly and two cover half-closed type flashboard assemblies is mutually 60 degree angles on the horizontal section of housing, thereby has reduced the whole height of preventer, is convenient to operation, increases work efficiency.
The above-mentioned full-enclosed type flashboard assembly that comprises blind rams, joint ring and long lead screw, be equipped with the hard alloy layer of 0.5～1.0mm on its blind rams and the joint ring contact surface, to improve the resistance to elevated temperatures and the application life of full-enclosed type flashboard assembly, save maintenance and replacing time.
The half-closed type flashboard assembly that above-mentioned front end semicircular cavities inwall is provided with shaggy tooth is positioned at the below of three cover flashboard assemblies, so that the frequent use of this flashboard assembly.
The beneficial effects of the utility model are: owing to adopted a cover full-enclosed type flashboard assembly and two cover half-closed type flashboard assemblies, and wherein the flashboard front end semicircular cavities inwall of a cover half-closed type flashboard assembly is provided with shaggy tooth, thereby has full envelope, half oil sealing well and the fixing function of oil pipe; And compact conformation is convenient to operation, has improved operating efficiency effectively.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the vertical view of Fig. 1.
Among the figure: 1 is that housing, 2 is that main channel, 3 is that full-enclosed type flashboard assembly, 3-1 are that blind rams, 3-2 are that hard alloy layer, 3-3 are that joint ring, 3-4 are that long lead screw, 4 is that half-closed type flashboard assembly, 5 is that half-closed type flashboard assembly, 5-1 are that half envelope flashboard, 5-2 are shaggy tooth.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model comprises: housing 1, full-enclosed type flashboard assembly 3 and half-closed type flashboard assembly 4,5; During one cover full-enclosed type flashboard assembly 3 and two cover half-closed type flashboard assemblies 4,5 are, upper and lower three layers of distribution are installed in the main channel 2 of housing 1, and the axis of full-enclosed type flashboard assembly 3 and two cover half-closed type flashboard assemblies 4,5 is mutually 60 degree angles on the horizontal section of housing 1; The front end semicircular cavities inwall that partly seals flashboard 5-1 that is in the half-closed type flashboard assembly 5 of lower floor is provided with shaggy tooth 5-2.The full-enclosed type flashboard assembly 3 that comprises blind rams 3-1, joint ring 3-3 and long lead screw 3-4, its joint ring 3-3 is installed on 2 inwalls of main channel, blind rams 3-1 is placed in the flashboard chamber of housing 1, the end of long lead screw 3-4 passes housing 1 and links to each other with blind rams 3-1, adopts spray welding process to be provided with the Ni60TH2 hard alloy layer 3-2 of 0.8mm on blind rams 3-1 and the joint ring 3-3 contact surface.
During use, at first the utility model is installed on the well head of oil well.When needs during with the oil well complete closed, a side direction opposite side of 2 moves the blind rams 3-1 that then makes full-enclosed type flashboard assembly 3 from the main channel, applies the preceding sealing crimp that a point load makes blind rams 3-1 front end again, thereby realizes complete closed.When oil pipe is arranged in the oil well, when needing the oil sealing well, the flashboard that partly seals that then promotes partly to seal flashboard assembly 4 moves to 2 centers, main channel, partly seals flashboard until both sides and contacts, and applies the preceding sealing crimp in the semi-circular arc sky that a point load makes half envelope flashboard again, pack tightly oil pipe, thereby realize half envelope.When needs fixedly oil pipe, prevent that it is up and down during play, the flashboard 5-1 that partly seals that then promotes half-closed type flashboard assembly 5 moves to main logical 2 centers, partly sealing flashboard 5-1 until both sides contacts, apply the shaggy tooth 5-2 chucking oil pipe on the front end semicircular cavities inwall that a point load makes half envelope flashboard 5-1 again, thereby make oil pipe screens, fixing.
Claims (4)
1, multi-functional triple ram preventer comprises housing, full-enclosed type flashboard assembly and half-closed type flashboard assembly; It is characterized in that: a cover full-enclosed type flashboard assembly and two cover half-closed type flashboard assemblies are the upper, middle and lower distribution and are installed in the housing main channel, and wherein the front end semicircular cavities inwall that partly seals flashboard of a cover half-closed type flashboard assembly is provided with shaggy tooth.
2, above-mentioned multi-functional triple ram preventer according to claim 1 is characterized in that: the axis of a cover full-enclosed type flashboard assembly and two cover half-closed type flashboard assemblies is mutually 60 degree angles on the horizontal section of housing.
3, above-mentioned multi-functional triple ram preventer according to claim 1, it is characterized in that: the above-mentioned full-enclosed type flashboard assembly that comprises blind rams, joint ring and long lead screw is equipped with the hard alloy layer of 0.5～1.0mm on its blind rams and the joint ring contact surface.
4, above-mentioned multi-functional triple ram preventer according to claim 1 is characterized in that: the half-closed type flashboard assembly that above-mentioned front end semicircular cavities inwall is provided with shaggy tooth is positioned at the below of three cover flashboard assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201610230U CN201297150Y (en) | 2008-11-13 | 2008-11-13 | Multifunctional triple ram preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201610230U CN201297150Y (en) | 2008-11-13 | 2008-11-13 | Multifunctional triple ram preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297150Y true CN201297150Y (en) | 2009-08-26 |
Family
ID=41043129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201610230U Expired - Lifetime CN201297150Y (en) | 2008-11-13 | 2008-11-13 | Multifunctional triple ram preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297150Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105452595A (en) * | 2013-08-02 | 2016-03-30 | 耐驰泵及系统有限公司 | Clamping device and method for fixing a drive shaft in a stationary manner |
-
2008
- 2008-11-13 CN CNU2008201610230U patent/CN201297150Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105452595A (en) * | 2013-08-02 | 2016-03-30 | 耐驰泵及系统有限公司 | Clamping device and method for fixing a drive shaft in a stationary manner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |