CN200985765Y - Grab type no-killing well repairing well head device - Google Patents
Grab type no-killing well repairing well head device Download PDFInfo
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- CN200985765Y CN200985765Y CN 200620201014 CN200620201014U CN200985765Y CN 200985765 Y CN200985765 Y CN 200985765Y CN 200620201014 CN200620201014 CN 200620201014 CN 200620201014 U CN200620201014 U CN 200620201014U CN 200985765 Y CN200985765 Y CN 200985765Y
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Abstract
The utility model relates to an oil field workover tool, that is a slip-type workover wellhead equipment without well-killing, which comprises a tripe ram blowout preventer, a double ram blowout preventer, one or two sets of ring blowout preventer, the upper and lower crossbeams, a set of conical stationery slip assembly and a set of conical lifting slip assembly. Between the upper crossbeam and the lower crossbeam is a pair of lifting oil cylinders. An electronic sensing collar alarm is installed In front of the ring blowout preventer to accurately judge the mobile location of the pipe clamp. With the adoption of the conical slip and the electronic sensing collar alarm, the probability of the problem in the wellhead device reduces greatly, which helps to shorten the workover time, improve the working efficiency, and ensure the safety.
Description
Technical field
The utility model relates to a kind of oil field workover tool, i.e. not kill-job of slip-type well workover wellhead assembly.
Background technology
In prior art, generally speaking, oil field not kill-job well workover wellhead assembly all needs a special control system of cover and cooperates with workover rig water injection well in oil fields, flowing well and gas well are carried out workover treatment.The snubbing serving technology has many advantages, and its great advantage of oil gas well is that it can protect and keep the original production capacity on stratum, reduces acidifying, and the number of times of well stimulations such as pressure break is for the long-term exploitation and the steady production of oil gas field provides good basis; For well, because it does not need to stop to annotate and puts pressure before the operation, can shorten construction period greatly, the input that can remove required well killing fluid of routine work and ground installation thereof from has simultaneously been saved the expense of row's well killing fluid, and is pollution-free, protected environment.Snubbing serving can be saved well killing fluid and the disposal cost thereof that is used for kill job for oily company on the one hand thus; on the other hand; because oil-gas Layer has obtained good protection, the production capacity of oil-gas Layer can be improved accordingly, thereby can utilize our underground petroleum resources to greatest extent.
The not kill-job wellhead assembly of domestic production at present mainly all is made up of a cover triple ram preventer or double ram type preventer, a cover or two collar-shaped preventers, a cover rising overflow pipe nipple, lower transverse beam, a pair of elevating ram, top rail, a cover wafer type stationary slip and a cover wafer type lifting slips etc.Its shortcoming is: 1, the wafer type slips is clamped when tubing string removes in the well, because clamping force is not very reliable, causes whole tubing string to drop in the well easily or whole tubing string sprays in well, causes great human casualty accident.2, owing to there is not the special device of a cover, make operating personnel not know the particular location of string collar in device in the well, cause operating personnel's box cupling when playing lower tubular column to scrape the glue core in the annular preventer broken, cause Jing Neigaoyashui ejection, cause the well workover workman to come to harm or can not normal operation.3, the glue core price in the annular preventer is very expensive, and about about 4000 yuan～10000 yuan, repair a bite well approximately needs 2～4 glue cores to the price of a glue core, causes workover cost too high greatly.
The utility model content
The purpose of this utility model is to provide a kind of safe in utilization, not kill-job of slip-type well workover wellhead assembly with low cost at above-mentioned deficiency.
Technical solution of the present utility model is: not kill-job of slip-type well workover wellhead assembly comprises that a pair of elevating ram, a cover stationary slip assembly and the cover lifting slips assembly between cover triple ram preventer or a double ram type preventer, a cover or two collar-shaped preventers, lower and upper cross-member, the lower and upper cross-member form.The stationary slip assembly is a taper stationary slip assembly, and lifting slips assembly is a taper lifting slips assembly.
Watt seat of band bellmouth in the middle of described taper slips assembly comprises one, seat has middle at least two slips that form circular hole in watt seat taper hole, as being two, three or four, is preferably four.Slips is connected with watt rotating shaft of seat both sides by the arm thick stick, each rotating shaft shaft end again with a lever flexible connection, lever can one, can be two also, is preferably one.Lever bottom and oil cylinder post external part alive flexibly connects at an angle, if lever is two, that oil cylinder also should be two.
The box cupling alarm of electronic sensor is installed, with accurate judgement pipe collar shift position in the annular preventer front portion.
The utility model has the advantages that: 1, owing to adopted the stationary slip and the lifting slips of paired taper, no matter the interior tubing string of well is subjected to much power up or down, all be to press from both sides tighter and tighter, the accident that tubing string drops in the well or whole tubing string sprays in the well be can never occur, well workover personnel's safety and carrying out smoothly of workover treatment guaranteed.2, owing to know that at needs the position of box cupling particular location installed the box cupling alarm of electronic sensor, as long as box cupling is near the box cupling alarm, alarm will send signal and give driller operating personnel, control by the driller personnel make box cupling be unlikely to the glue core in the annular preventer is scraped by annular preventer smoothly broken, thereby greatly reduce workover cost.3, owing to adopted paired taper slips and box cupling newspaper alarm, the probability that whole wellhead assembly goes wrong significantly reduces, so shortened the well workover time greatly, operating efficiency has improved nearly one times, thereby economic benefit is doubled.Increase economic efficiency 30,000 yuan by repairing every mouthful of well, repair 60 mouthfuls of wells every year and calculate, a slip-type pressure balance workover rig can be increased economic efficiency 1,800,000 yuan every year.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the utility model structure diagram;
Fig. 2 is a taper slips assembly plan structure sketch;
Fig. 3 is that Fig. 2 is along centerline sectional view.
The specific embodiment
Referring to Fig. 1, be not kill-job of BYXJ402-13-0 slip-type well workover wellhead assembly.Not kill-job of slip-type well workover wellhead assembly comprises a cover triple ram preventer 1 (also can be double ram type preventer), annular preventer 2, lower transverse beam 3, rising overflow pipe nipple 4, annular preventer 5, a pair of taper stationary slip assembly 6, a pair of taper lifting slips assembly 7 and the top rail 8 that connects in turn from bottom to up.Between the upper and lower crossbeam 8,3 a pair of elevating ram 9 is arranged.5, the box cupling alarm 10 of electronic sensor is installed in annular preventer 5 front portions.Box cupling alarm 10 markets of electronic sensor are on sale, produce as Shenyang electronics Watch Factory.
Referring to Fig. 2,3, taper slips assembly comprises watt seat 11 of band bellmouth in the middle of, forms at least two slips 12 of circular hole in the middle of in watt seat taper hole there being seat, four slips preferably among the figure.Slips 12 is connected with the rotating shaft 14 of watt seat 11 both sides by arm thick stick 13, each rotating shaft 14 shaft end flexibly connects with a lever 15 again, be that two rotating shafts 14 are (certain with the same lever 15 both sides flexible connection of same side end (Fig. 2 middle and upper part) among Fig. 2, also can be respectively with two not the lever of homonymy be connected, but complex structure, unreasonable), lever 15 bottoms and oil cylinder post 16 external parts of living flexibly connect at an angle, and post alive 16 external parts of lever 15 bottoms oil cylinder 17 in parallel flexibly connect at an angle among Fig. 2.
Referring to Fig. 3, when this position oil pipe passes in the middle of slips 12, be the conical surface between Yin Kawa 12 and watt seat 11 and combine, oil pipe is subjected to downward active force big more, folder tight more, otherwise, turning the position use around, can not spray behind the clamp.During use, paired one anti-one is just using (see figure 1), and no matter the interior tubing string of well is subjected to much power up or down, all is to press from both sides tighter and tighter, the accident that tubing string drops in the well or whole tubing string sprays in the well can never occur.
Claims (5)
1. not kill-job of a slip-type well workover wellhead assembly comprises a cover triple ram preventer (1) or a double ram type preventer that connects in turn, a cover or two collar-shaped preventers (2), upper and lower crossbeam (8,3), a cover stationary slip assembly and a cover lifting slips assembly; Upper and lower crossbeam has a pair of elevating ram (9) between (8,3), it is characterized in that the stationary slip assembly is a taper stationary slip assembly (6), and lifting slips assembly is a taper lifting slips assembly (7).
2. according to not kill-job of the described slip-type of claim 1 well workover wellhead assembly, it is characterized in that described taper slips assembly comprises watt seat (11) of a middle band bellmouth, form at least two slips (12) of circular hole in the middle of in watt seat (11) taper hole there being seat, slips (12) is connected with the rotating shaft (14) of a watt seat (11) both sides by arm thick stick (13), each rotating shaft (14) shaft end flexibly connects with a lever (15) again, and post alive (16) external part of lever (15) bottom and oil cylinder (17) flexibly connects at an angle.
3. according to not kill-job of the described slip-type of claim 2 well workover wellhead assembly, it is characterized in that each rotating shaft (14) flexibly connects with a lever (15) both sides respectively again with side end, post alive (16) external part of the oil cylinder (17) that lever (15) bottom is in parallel flexibly connects at an angle.
4. according to claim 2 or 3 described not kill-job of slip-type well workover wellhead assemblies, it is characterized in that slips (12) is four.
5. according to not kill-job of the described slip-type of claim 4 well workover wellhead assembly, it is characterized in that being equipped with the box cupling alarm (10) of electronic sensor in annular preventer (4) front portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620201014 CN200985765Y (en) | 2006-12-11 | 2006-12-11 | Grab type no-killing well repairing well head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620201014 CN200985765Y (en) | 2006-12-11 | 2006-12-11 | Grab type no-killing well repairing well head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200985765Y true CN200985765Y (en) | 2007-12-05 |
Family
ID=38915223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620201014 Expired - Fee Related CN200985765Y (en) | 2006-12-11 | 2006-12-11 | Grab type no-killing well repairing well head device |
Country Status (1)
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| CN (1) | CN200985765Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536212A (en) * | 2010-12-21 | 2012-07-04 | 卞康群 | Coupling alarming device |
| CN102635325A (en) * | 2012-04-28 | 2012-08-15 | 中国石油化工股份有限公司 | Mechanical workover floating type wellhead protection device and use method |
| CN101555776B (en) * | 2009-05-18 | 2013-04-03 | 中国石油辽河油田钻采工艺研究院 | Wellhead blowout preventer of external packer of pipe |
| CN103161408A (en) * | 2011-12-16 | 2013-06-19 | 卞康群 | Hydraulic type coupling alarm device |
| CN103161409A (en) * | 2011-12-16 | 2013-06-19 | 卞康群 | Hydraulic type coupling alerter |
| CN103993852A (en) * | 2014-05-15 | 2014-08-20 | 中国石油天然气股份有限公司 | Gas well snubbing liquid seal gas well mouth blowout prevention system |
| CN110259404A (en) * | 2019-05-24 | 2019-09-20 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | A kind of pit shaft operation device under pressure |
-
2006
- 2006-12-11 CN CN 200620201014 patent/CN200985765Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555776B (en) * | 2009-05-18 | 2013-04-03 | 中国石油辽河油田钻采工艺研究院 | Wellhead blowout preventer of external packer of pipe |
| CN102536212A (en) * | 2010-12-21 | 2012-07-04 | 卞康群 | Coupling alarming device |
| CN102536212B (en) * | 2010-12-21 | 2016-04-06 | 盐城市华谊石油机械有限公司 | Coupling alarming device |
| CN103161408A (en) * | 2011-12-16 | 2013-06-19 | 卞康群 | Hydraulic type coupling alarm device |
| CN103161409A (en) * | 2011-12-16 | 2013-06-19 | 卞康群 | Hydraulic type coupling alerter |
| CN103161408B (en) * | 2011-12-16 | 2016-08-03 | 盐城市华谊石油机械有限公司 | Fluid pressure type coupling alarming device |
| CN103161409B (en) * | 2011-12-16 | 2016-08-17 | 盐城市华谊石油机械有限公司 | Fluid pressure type coupling alarm |
| CN102635325A (en) * | 2012-04-28 | 2012-08-15 | 中国石油化工股份有限公司 | Mechanical workover floating type wellhead protection device and use method |
| CN102635325B (en) * | 2012-04-28 | 2014-05-28 | 中国石油化工股份有限公司 | Mechanical workover floating type wellhead protection device and use method |
| CN103993852A (en) * | 2014-05-15 | 2014-08-20 | 中国石油天然气股份有限公司 | Gas well snubbing liquid seal gas well mouth blowout prevention system |
| CN110259404A (en) * | 2019-05-24 | 2019-09-20 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | A kind of pit shaft operation device under pressure |
| CN110259404B (en) * | 2019-05-24 | 2021-05-28 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Shaft under-pressure operation device |
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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: 20071205 Termination date: 20121211 |