CN2916112Y - Dual ship gate type pressurized blowout preventer for workover - Google Patents
Dual ship gate type pressurized blowout preventer for workover Download PDFInfo
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- CN2916112Y CN2916112Y CN 200520132416 CN200520132416U CN2916112Y CN 2916112 Y CN2916112 Y CN 2916112Y CN 200520132416 CN200520132416 CN 200520132416 CN 200520132416 U CN200520132416 U CN 200520132416U CN 2916112 Y CN2916112 Y CN 2916112Y
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Abstract
The utility model relates to an oil well operation device, in particular to an oil well top blowout preventing operation device. The dual ship gate type pressurized blowout preventer for workover comprises a casing pipe four-way(1), which has been improved in that on top of the four-way casing pipe a hydraulic control triple ram preventer assembly(2), a lower round blowout preventer (3), an oil pipe joint hoop electronic detecting instrument(4), a balancing four-way(5), a blowout preventer short circuit(6), and an upper round blowout preventer(7) are successively arranged. A lifting liquid cylinder(9) body(9.1) is arranged on the hydraulic control triple ram preventer assembly(2); the extension end of the lifting liquid cylinder(9) body(9.2) is arranged on an upper clamping support(10); a hydraulic upper clamping(8) is positioned on the top of the clamping support(10); a liquid control balance valve(11) is positioned on the pipeline that connect the casing pipe four-way(1) with the balancing four-way(5); the upper round blowout preventer(7) is connected with a liquid control pressure relief valve(12). The device realizes centralized control and avoids incorrect joint hoop blocking accidents.
Description
Technical field
The utility model relates to a kind of oil field operation equipment, especially relates to a kind of oil field shaft mouth preventing spraying operation equipment.
Background technology
Present domestic oil drilling and operation are all being carried out operation in order to prevent gas blowout accident and pollution after kill-job.The disadvantage of doing like this be exactly in the drilling process formation testing show not obvious or well killing fluid infiltrates and stops up the stratum and cause irremediable loss, kill-job also exists same disadvantage in the workover treatment.Under balance pressure drilling has just begun to grope to promote in China, and process equipment relies on import fully.Operating Pressure also is that oilfield downhole operation is at the early-stage in recent years, and Operating Pressure both can effectively be protected oilbearing stratum and stratum, does not pollute stratum and ground surrounding environment, has realized safety in production, can save operating cost again.North america such as the U.S. and Canada is carried out Operating Pressure comprehensively before the more than ten years, its ratio reaches about 70%.But also there are some shortcomings in oil-water well snubbing serving blowout hookup in home and abroad at present, as bulky, and installation, complex operation, consumable accessory increases, the lost of life, cost superelevation.And, annular preventer in the package unit is in the pressure locking state all the time, and when tubing coupling during by press-in device by force, key component wherein---packing element is in fluid control pressure and holds state tightly, and the dead step of tubing coupling passes through by force, and its a pair of packing element causes damage, make the consumable accessory lost of life, hydraulic oil source of the gas in its two well tubing coupling by and can not be in time for packing element provide when pressing reseat pressure, the hydraulic oil air-flow will outwards spray or overflow, causes danger or pollution.
Summary of the invention
The purpose of this utility model just provides a kind of novel double lock formula band and presses the workover treatment blowout hookup, can prevent effectively that oil pipe installation in band pressure workover treatment process, dismounting from reaching, occurring down well liquid thorn and leaking and overflow.
The purpose of this utility model is realized by following technical scheme: this double lock formula band is pressed the workover treatment blowout hookup, comprise well head four-way junction of casing 1, its improvements are the top at well head four-way junction of casing 1, also be provided with hydraulic control triple ram preventer assembly 2 from the bottom to top successively, following annular preventer 3, oil pipe joint hoop electron detection instrument 4, balance four-way 5, blowout prevention pipe nipple 6, last annular preventer 7, the cylinder body 9.1 of lifting fluid cylinder 9 is installed on the hydraulic control triple ram preventer assembly 2, the external part of the cylinder bar 9.2 of lifting fluid cylinder 9 is installed on the chucking bearing 10, is equipped with on the top of last chucking bearing 10 and tightens 8 on the hydraulic pressure; On well head four-way junction of casing 1 and pipeline that balance four-way 5 is communicated with, be provided with hydraulic control equalizing valve 11; The described annular preventer 7 of going up is communicated with liquid control pressure releasing valve 12.
Above-mentioned double lock formula band is pressed the workover treatment blowout hookup, and described hydraulic control triple ram preventer assembly 2 is followed successively by blind rams 2.1 from the bottom to top, partly seals flashboard 2.2, hydraulic pressure chucking 2.3 down.
Double lock equilibrium principle when this double lock formula band presses the workover treatment blowout hookup to adopt the Three Gorges ship to cross the dam, and increased hydraulic control equalizing valve 11 and liquid control pressure releasing valve 12, make whole table apparatus all on a central controlled operating platform, realize centralized Control.Unique electronics joint hoop magnetic detection tape deck 4, can under the state of oil pipe motion, detect oil pipe joint hoop by the time and write down quantity, avoid accidents because of oil pipe chucking 2.3 mistake card joint hoops under complete equipment is advanced the hydraulic pressure that the not clear misjudgment in joint hoop in-position causes.The package unit simple installation, operation is note easily.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model;
Structure sectional view of the present utility model when Fig. 2 works for the lifting fluid cylinder;
Fig. 3 is the structure sectional view of the utility model hydraulic control triple ram preventer assembly;
Fig. 4 is the structural representation of annular preventer and liquid control pressure releasing valve on the utility model;
The structural representation of Fig. 5 for tightening on the utility model hydraulic pressure.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
See also Fig. 1 to shown in Figure 5, this blowout hookup is composed as follows among the figure:
Top at well head four-way junction of casing 1, be provided with hydraulic control triple ram preventer assembly 2, following annular preventer 3, oil pipe joint hoop electron detection instrument 4, balance four-way 5, blowout prevention pipe nipple 6 from the bottom to top successively, go up annular preventer 7, the cylinder body 9.1 of lifting fluid cylinder 9 is installed on the hydraulic control triple ram preventer assembly 2, the external part of the cylinder bar 9.2 of lifting fluid cylinder 9 is installed on the chucking bearing 10, is equipped with on the top of last chucking bearing 10 and tightens 8 on the hydraulic pressure.On well head four-way junction of casing 1 and pipeline that balance four-way 5 is communicated with, be provided with hydraulic control equalizing valve 11.Last annular preventer 7 is communicated with liquid control pressure releasing valve 12.Hydraulic control triple ram preventer assembly 2 is followed successively by blind rams 2.1 from the bottom to top, partly seals flashboard 2.2, hydraulic pressure chucking 2.3 down.
Be elected to be industry purpose well during work earlier, and throw the special-purpose bridging plug of oil pipe, shut gas channel to this well afterbody oil pipe, again by production tree with overbottom pressure emptying in the oil pipe, the dismounting production tree.
With working rig carry a standby lifting oil pipe from hydraulic control triple ram preventer assembly 2, oil pipe joint hoop electron detection instrument 4, balance four-way 5, blowout prevention pipe nipple 6, go up annular preventer 7, tighten bearing 10, hydraulic pressure chucking 8 inside import into, with boll-weevil hanger screwed connection in the well head four-way junction of casing 1 and tighten, operate ground hydraulic control this moment equipment is given last annular preventer 7 voltage supply, and hydraulic oil promotes to go up packing element locking oil pipe in the annular preventer 7.Chucking 8 is closed the chucking oil pipe on the hydraulic pressure, open well head four-way junction of casing 1 boll-weevil hanger set bolt, open hydraulic control equalizing valve 11 and carry out pressure balance, operate ground hydraulic control equipment is given 9 voltage supply of lifting fluid cylinder, put forward tubing hanger on beginning and it is carried oil pipe joint hoop electron detection instrument more than 4, close chucking 2.3 chucking oil pipes under the hydraulic pressure.
Chucking 8 is closed the chucking oil pipe on the hydraulic pressure, open well head four-way junction of casing 1 boll-weevil hanger set bolt, open hydraulic control equalizing valve 11 and carry out pressure balance, operate ground hydraulic control equipment is given 9 voltage supply of lifting fluid cylinder, put forward tubing hanger on beginning and it is carried oil pipe joint hoop electron detection instrument more than 4, close chucking 2.3 chucking oil pipes under the hydraulic pressure, tighten 8 on the hydraulic pressure and open this moment, lifting fluid cylinder 9 is received to bottom dead centre, to go up chucking bearing 10 with the lifting bolt links together with last annular preventer 7, close hydraulic control equalizing valve 11, open 12 pressure releases of liquid control pressure releasing valve, unclamp the connecting bolt of oil pipe joint hoop electron detection instrument 4 and hydraulic control triple ram preventer assembly 2, operate ground hydraulic control facility is given 9 voltage supply of lifting fluid cylinder, last chucking bearing 10 drives oil pipe joint hoop electron detection instrument 4, balance four-way 5, blowout prevention pipe nipple 6, last annular preventer 7 is up and expose tubing hanger, unload tubing hanger take out and will descend annular preventer 3 be installed in oil pipe joint hoop electron detection instrument 4 below, lifting fluid cylinder 9 walks to bottom dead centre, with hydraulic control triple ram preventer assembly 2, following annular preventer 3, oil pipe joint hoop electron detection instrument 4 links together, and lays down annular preventer 7 and adorns bolt with the lifting of last chucking bearing 10.The oil pipe lifting sub is connected with tubing hanger bottom oil pipe carries out next step operation.
Operate ground hydraulic control equipment is given voltage supply in the last annular preventer 7, makes annular preventer 7 hold oil pipe tightly.Close liquid control pressure releasing valve 12, open hydraulic control equalizing valve 11, carry out the system pressure balance, close chucking 8 chucking oil pipes on the hydraulic pressure, open half envelope flashboard 2.2, following annular preventer 3, operate ground hydraulic control equipment is given in 9 voltage supply of lifting fluid cylinder and is carried oil pipe, when tubing coupling when last annular preventer 7 bottoms, close down annular preventer 3, hydraulic control equalizing valve 11, hydraulic pressure chucking 2.3 down, and make under the hydraulic pressure chucking 2.3 chucking oil pipes, reclaim lifting fluid cylinder 9 when opening 12 pressure releases of liquid control pressure releasing valve to bottom dead centre, chucking 8 tightens oil pipe on the operation hydraulic pressure.
Open annular preventer 7, operate ground hydraulic control equipment is given 9 voltage supply of lifting fluid cylinder, make on the hydraulic pressure chucking 8 drive oil pipes and go upward to top dead-centre, and envoy's hoop spues and goes up outside the annular preventer 7.
Fashionable down, the oil pipe that will have one way valve in advance insert to go up annular preventer 7, blowout prevention pipe nipple 6, balance four-way 5, oil pipe joint hoop electron detection instrument 4, down annular preventer 3, hydraulic pressure down chucking 2.3, partly seal flashboard 2.2, lifting fluid cylinder 9 is risen to top dead-centre, close liquid control pressure releasing valve 12, upward tighten 8 on annular preventer 7, the hydraulic pressure, open hydraulic control equalizing valve 11 and carry out the system pressure balance, open blind rams 2.1, descending lifting fluid cylinder 9 drives on the hydraulic pressure chucking 8 and send under the oil pipe, until the bottom dead centre of lifting fluid cylinder 9.
Close and tighten chucking 2.3 under the hydraulic pressure, lifting fluid cylinder 9 is risen to top dead-centre, close and tighten and tighten 8 on the hydraulic pressure, open chucking 2.3 under the hydraulic pressure, descending lifting fluid cylinder 9 drives on the hydraulic pressure chucking 8 and send under the oil pipe, bottom dead centre until lifting fluid cylinder 9 goes round and begins again in proper order, to the top that annular preventer 7 is gone up in the arrival of next oil pipe joint hoop.
Close and tighten chucking 2.3 under the hydraulic pressure, following annular preventer 3, hydraulic control equalizing valve 11, open 12 pressure releases of liquid control pressure releasing valve, lifting fluid cylinder 9 is risen to top dead-centre, close and tighten and tighten 8 on the hydraulic pressure, open annular preventer 7, chucking 8 is delivered to down oil pipe joint hoop down the top of annular preventer 3 on the descending lifting fluid cylinder 9 drive hydraulic pressure, annular preventer 7 is closed in the pass, liquid control pressure releasing valve 12, and allow under the hydraulic pressure chucking 2.3 chucking oil pipes, open hydraulic control equalizing valve 11 and carry out the system pressure balance, open down annular preventer 3, allow lifting fluid cylinder 9 continue to tighten on the descending drive hydraulic pressure 8 and will deliver to the bottom of chucking 2.3 under the hydraulic pressure under the oil pipe joint hoop.
Continue to close and tighten chucking 2.3 under the hydraulic pressure then, lifting fluid cylinder 9 is risen to top dead-centre, close and tighten and tighten 8 on the hydraulic pressure, open chucking 2.3 under the hydraulic pressure, descending lifting fluid cylinder 9 drives on the hydraulic pressure chucking 8 and send under the oil pipe, bottom dead centre until lifting fluid cylinder 9 goes round and begins again with this, to the top that annular preventer 7 is gone up in the arrival of next oil pipe joint hoop.
At last, close half envelope flashboard 2.2, hydraulic pressure is chucking 2.3 down, opening liquid control pressure releasing valve 12 lays down internal system pressure, remove hydraulic control triple ram preventer assembly 2, following annular preventer 3, oil pipe joint hoop electron detection instrument 4 connecting bolts, to go up chucking bearing 10 with the lifting bolt is connected with last annular preventer 7, and allow the ground hydraulic control system be 9 voltage supply of lifting fluid cylinder, with oil pipe joint hoop electron detection instrument 4, balance four-way 5, blowout prevention pipe nipple 6, last annular preventer 7 integral body are mentioned, dismantle tubing nipple and take off down annular preventer 3, and tubing hanger is installed on the oil pipe, connect tubing nipple simultaneously, allow the ground hydraulic control system be 9 voltage supply of lifting fluid cylinder, allow the oil pipe joint bind round electron detection instrument 4, balance four-way 5, blowout prevention pipe nipple 6, last annular preventer 7 whole descending being seated on the hydraulic control triple ram preventer assembly 2, connect hydraulic control triple ram preventer assembly 2 with bolt, oil pipe joint hoop electron detection instrument 4, close liquid control pressure releasing valve 12, last annular preventer 7, tighten 8 on the hydraulic pressure, open hydraulic control equalizing valve 11 and carry out the system pressure balance, open half envelope flashboard 2.2, hydraulic pressure is chucking 2.3 down, give 9 voltage supply of lifting fluid cylinder again, make lifting fluid cylinder 9 to descending, until tubing hanger being seated in well head four-way junction of casing 1, and tighten the tubing hanger set bolt.
Close hydraulic control equalizing valve 11, open 12 pairs of systems of liquid control pressure releasing valve and carry out pressure release, begin to dismantle complete equipment.
Production tree is installed, goes into operation.
Claims (2)
1, a kind of double lock formula band is pressed the workover treatment blowout hookup, comprise well head four-way junction of casing (1), it is characterized in that top in well head four-way junction of casing (1), also be provided with hydraulic control triple ram preventer assembly (2) from the bottom to top successively, following annular preventer (3), oil pipe joint hoop electron detection instrument (4), balance four-way (5), blowout prevention pipe nipple (6), last annular preventer (7), the cylinder body (9.1) of lifting fluid cylinder (9) is installed on the hydraulic control triple ram preventer assembly (2), the external part of the cylinder bar (9.2) of lifting fluid cylinder (9) is installed on the chucking bearing (10), and chucking (8) on the hydraulic pressure is installed on the top of last chucking bearing (10); On well head four-way junction of casing (1) and pipeline that balance four-way (5) is communicated with, be provided with hydraulic control equalizing valve (11); The described annular preventer (7) of going up is communicated with liquid control pressure releasing valve (12).
2, a kind of double lock formula band according to claim 1 is pressed the workover treatment blowout hookup, it is characterized in that described hydraulic control triple ram preventer assembly (2) is followed successively by blind rams (2.1) from the bottom to top, partly seals flashboard (2.2), hydraulic pressure chucking (2.3) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520132416 CN2916112Y (en) | 2005-11-09 | 2005-11-09 | Dual ship gate type pressurized blowout preventer for workover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520132416 CN2916112Y (en) | 2005-11-09 | 2005-11-09 | Dual ship gate type pressurized blowout preventer for workover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916112Y true CN2916112Y (en) | 2007-06-27 |
Family
ID=38187021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520132416 Expired - Fee Related CN2916112Y (en) | 2005-11-09 | 2005-11-09 | Dual ship gate type pressurized blowout preventer for workover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916112Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817571A (en) * | 2012-09-05 | 2012-12-12 | 东营鸿昇机械设备有限公司 | Blowout-prevention tool string of belt pressure energy storage well repairing machine |
| CN103939013A (en) * | 2014-04-28 | 2014-07-23 | 沈阳工业大学 | Integrated high-temperature pressure balance workover rig |
| CN109296332A (en) * | 2018-11-29 | 2019-02-01 | 美钻深海能源科技研发（上海）有限公司 | One kind is automatic to cross piecing devices |
-
2005
- 2005-11-09 CN CN 200520132416 patent/CN2916112Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817571A (en) * | 2012-09-05 | 2012-12-12 | 东营鸿昇机械设备有限公司 | Blowout-prevention tool string of belt pressure energy storage well repairing machine |
| CN103939013A (en) * | 2014-04-28 | 2014-07-23 | 沈阳工业大学 | Integrated high-temperature pressure balance workover rig |
| CN109296332A (en) * | 2018-11-29 | 2019-02-01 | 美钻深海能源科技研发（上海）有限公司 | One kind is automatic to cross piecing devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |