CN201016290Y - Hydraulic double-gate flat-type oil-test blow-out preventer - Google Patents
Hydraulic double-gate flat-type oil-test blow-out preventer Download PDFInfo
- Publication number
- CN201016290Y CN201016290Y CNU2006201358255U CN200620135825U CN201016290Y CN 201016290 Y CN201016290 Y CN 201016290Y CN U2006201358255 U CNU2006201358255 U CN U2006201358255U CN 200620135825 U CN200620135825 U CN 200620135825U CN 201016290 Y CN201016290 Y CN 201016290Y
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- China
- Prior art keywords
- main casing
- flashboard
- assembly
- hydraulic
- preventer
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Abstract
A hydraulic double-damper plate and flat type blowout preventor pertains to the petroleum machinery technology area. The device comprises a main casing, an assembly of four damper plates moving in the opposite direction inside of the main casing, a hydraulic oil cylinder, a pull bar, a left end cover and a right end cover. The hydraulic oil cylinder is connected to the assembly of damper plates by the pull rod, the left and right end cover are fixed at two ends of the main casing outside the assembly of damp plates respectively, and the damp plates of the assembly are a platode. The utility model is suitable for sealing the annular space between the casing and the pipe string during the oil test and well reparation, preventing from the occurrence of blow out accident, and serving as the associated equipment of the well test tools as well as sealing of the annular space during the pressurization of the annular space. The utility model has the advantages of simple, convenient use and maintenance, small size, low height, high pressure bearing, and being ideal equipment for safe, reliable and clear construction of oilfield. The opening and closing of the damper plates of the blowout preventor are all controlled by the hydraulic pressure, thereby not only reducing efforts, and but also moving rapidly and reliably.
Description
Technical field
The utility model belongs to oil formation testing, the workover treatment preventer field in the field of mechanical technique.
Background technology
The preventer overwhelming majority of using in formation testing at present, the workover treatment all is circular ram preventer, and product is not only highly high but also on-the-spot replacing flashboard is extremely inconvenient.At present, the body of the on-the-spot circular ram preventer of trying out in oil field adopts adpting flange and body Type of Welding more, and certain potential safety hazard is arranged.The user feels dangerous in use.
Summary of the invention
Goal of the invention of the present utility model provides the flat formula formation testing of a kind of Hydraulic Double flashboard preventer.Be intended to eliminate the design defect of circular ram preventer, and on the basis that absorbs the original structure advantage, further improve the application function of preventer, make artificial, the open-air quickly-detachable of its adaptation that flashboard is installed by adopting the brand-new design theory.
Design scheme of the present utility model is: the flat formula formation testing of Hydraulic Double flashboard preventer, form by main casing (4), four the flashboard assemblies (5) that in main casing, move in opposite directions, hydraulic jack, pull bar (7), left end cap (1) and right end caps (6), hydraulic jack is connected with flashboard assembly (5) by pull bar (7), left end cap and right end cap are separately fixed at the outer main casing two ends of flashboard assembly, and its key is that the flashboard body in the flashboard assembly is a flat.
Main casing of the present utility model (4) is an integral body of forging and molding, left end cap
Adopt high-strength bolt to connect with right end cap and being connected of main casing.
The utility model is compared with background technology has following characteristics: 1, adopted flat flashboard structure effectively to reduce and used height; 2, multiple technologies and structure are also with improving anti-sulphur ability.3, the original creation structure guarantees being connected and sealing of housing and end cap; 4, take built-in oil circuit fully, safe and reliable; 5, improve operation worker's operating environment greatly, and guaranteed the use of full region; 6, adapt to environmental protection requirement, effectively reduce operating cost.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model structural representation.
The figure number explanation:
1, left end cap 2, lifting bolt 3, upwards direction board 4, main casing 5, flashboard assembly 6, right end cap 7, pull bar 8, piston 9, lock shaft 10, cylinder sleeve 11, right cylinder cap 12, gasket ring 13, nameplate 14, left cylinder cap 15, acorn nut 16, studs 17, bolt 18, bolt 19, oil pipe seat 20, seal nipple.
The specific embodiment
Structure of the present utility model is shown in attached Fig. 1 and 2, and this preventer mainly is made up of component such as main casing (4), four flashboard assemblies (5) that move in main casing in opposite directions, fluid cylinder, pull bar (7), screw mandrel, end caps.When needs are shunt in a well, start hydraulic control system, hydraulic oil enters the chamber of closing of preventer oil cylinder by closing oil circuit, promotes two flashboards to the well central motion, and the synergy of packing unit and external seal glue core can realize shut-in well in relying on.When hydraulic oil enters the unlatching chamber of oil cylinder by opening oil circuit, oil pressure promotes to move behind the flashboard, can realize driving a well.Flashboard glue core is a rubber, and its distinguishing feature is that elastic deformation is big under external force, can be close to equably on the sealing surfaces, stops leakage, removes external force and can restore.The sealing principle of flashboard is to utilize be squeezed back distortion of rubber wick, embraces tightly that tubing string or cable realize.Preventer will be realized shut-in well.Need everywhere sealing and work simultaneously and just can not miss, that is: in the flashboard between sealing and the tubing string, between flashboard external seal and the housing, between housing and the end face, the sealing between end cap and the pull bar.
The utility model is mainly reflected in this well of its structure:
What 1, the flat formula formation testing of Hydraulic Double flashboard preventer adopted is novel flat formula flashboard body, belongs to the autonomous innovation structure.Not only simplified flashboard structure and made installation, the dismounting of flashboard body and keep in repair conveniently, and greatly reduced the whole height of formation testing preventer, provide bigger working space for implementing to go up well technology.
2, the flat formula formation testing of Hydraulic Double flashboard preventer adopts the main casing integral forging and forming first, does not use welding procedure processing main casing; The gasket ring groove is the stainless steel built-up welding and shapes on the flange; And adopt special thermal treatment technology, improve the mechanical performance of complete machine; Formation testing preventer all outer surfaces has adopted the nickel-phosphorus alloy coating technology more antifouling, anticorrosion.By the assurance of above technology, make a whole set of preventer possess the moderate of preventing H
2The performance indications of S corrosion.
3, the flat formula formation testing of Hydraulic Double flashboard preventer has adopted the sediment ejection trough design in position, inner flashboard chamber, greatly reduces the possibility of silt, mud obstruction well, flashboard job failure rate is reduced to controlled range, simultaneously, sediment ejection trough has pressure and helps the envelope effect, seals more reliable.High-strength bolt is adopted in being connected of end cap and main casing, by finite element analysis bolt quantity is dropped to minimumly, adds the end face convex type rubber ring hermetically-sealed construction of original creation, is guaranteeing that attachment security simultaneously, seals more reliable.
4, the oil piping system that surges of the flat formula formation testing of Hydraulic Double flashboard preventer adopts internal hidden type structure fully, does not expose oil circuit.Make a whole set of products more.Take this type of scheme to greatly reduce the probability that oil piping system breaks down.And it is convenient and quick to connect the hydraulic control source.
5, the piston rod and the leading screw of the flat formula formation testing of Hydraulic Double flashboard preventer have adopted split combination structure, make installation, use more quick, easy.And guaranteed this cover formation testing preventer under the help of special instrument, can when taking place, blowout (under the situation that hydraulic control system lost efficacy) realize manually closing well by force.This cover formation testing preventer uses the alternate conceptual design of side door demounting bolt first, makes package unit realize that fully the field removes and installs.
The utility model preventer specifically can be finished following operation:
1. sealing annular space when oil pipe, drilling rod, cable or steel cable are arranged in the well.
2. totally-enclosed empty well during no drilling tool in the well.
3. can under the situation of sealing well head, realize special operations such as kill-job, well-flushing, annular space pressurization.
4. use with other preventer combination, finish and switch the joint operation.
Claims (2)
1. the flat formula formation testing of Hydraulic Double flashboard preventer, form by main casing (4), four the flashboard assemblies (5) that in main casing, move in opposite directions, hydraulic jack, pull bar (7), left end cap (1) and right end caps (6), hydraulic jack is connected with flashboard assembly (5) by pull bar (7), left end cap and right end cap are separately fixed at the outer main casing two ends of flashboard assembly, it is characterized in that the flashboard body in the flashboard assembly is a flat.
2. the flat formula formation testing of Hydraulic Double flashboard according to claim 1 preventer is characterized in that main casing (4) is an integral body of forging and molding, and left end cap adopts high-strength bolt to connect with right end cap and being connected of main casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201358255U CN201016290Y (en) | 2006-09-15 | 2006-09-15 | Hydraulic double-gate flat-type oil-test blow-out preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201358255U CN201016290Y (en) | 2006-09-15 | 2006-09-15 | Hydraulic double-gate flat-type oil-test blow-out preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201016290Y true CN201016290Y (en) | 2008-02-06 |
Family
ID=39056775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201358255U Expired - Fee Related CN201016290Y (en) | 2006-09-15 | 2006-09-15 | Hydraulic double-gate flat-type oil-test blow-out preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201016290Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537526B (en) * | 2008-03-17 | 2012-04-25 | 江苏信得石油机械有限公司 | Technique for overlaying surface of inner cavity of advanced sulfur-resistant blowout preventer with alloy |
| CN109923278A (en) * | 2016-11-09 | 2019-06-21 | 安德列耶夫·弗拉迪米尔 | Gate valve is sheared in pressure balance double acting |
| CN116696270A (en) * | 2023-07-28 | 2023-09-05 | 大庆市天德忠石油科技有限公司 | Sand-proof throttling well-killing manifold |
-
2006
- 2006-09-15 CN CNU2006201358255U patent/CN201016290Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537526B (en) * | 2008-03-17 | 2012-04-25 | 江苏信得石油机械有限公司 | Technique for overlaying surface of inner cavity of advanced sulfur-resistant blowout preventer with alloy |
| CN109923278A (en) * | 2016-11-09 | 2019-06-21 | 安德列耶夫·弗拉迪米尔 | Gate valve is sheared in pressure balance double acting |
| CN116696270A (en) * | 2023-07-28 | 2023-09-05 | 大庆市天德忠石油科技有限公司 | Sand-proof throttling well-killing manifold |
| CN116696270B (en) * | 2023-07-28 | 2023-10-27 | 大庆市天德忠石油科技有限公司 | Sand-proof throttling well-killing manifold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20120915 |