CN201924885U - Test circulation valve capable of flinging pipe and being opened by pressurizing pipe - Google Patents
Test circulation valve capable of flinging pipe and being opened by pressurizing pipe Download PDFInfo
- Publication number
- CN201924885U CN201924885U CN2010206652152U CN201020665215U CN201924885U CN 201924885 U CN201924885 U CN 201924885U CN 2010206652152 U CN2010206652152 U CN 2010206652152U CN 201020665215 U CN201020665215 U CN 201020665215U CN 201924885 U CN201924885 U CN 201924885U
- Authority
- CN
- China
- Prior art keywords
- piston
- pipe
- sealing ring
- sliding sleeve
- urceolus
- 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 - Fee Related
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to the technical field of oil tests of oil exploration, and in particular to a test circulation valve capable of flinging a pipe and being opened by pressurizing a pipe. A piston is assembled in a piton cylinder of an upper joint of the test circulation valve, the upper joint and the piston are positioned through a positioning dowel of the piston, a sealing ring and a small sealing ring are arranged on the piston, a pressure release hole and a backflushing flow hole are arranged on an outer barrel, a sliding sleeve is assembled in the outer barrel, the upper and the lower parts of the sliding sleeve are respectively provided with the sealing ring, and meanwhile, the upper end of the sealing ring of the sliding sleeve is provided with the backflushing flow hole. By adopting the test circulation valve capable of flinging the pipe and being opened by pressurizing the pipe, the use cost and processing difficulty are reduced, the sealing property of a tool is improved, the pump pressure generated when a well is back flushed is reduced, a reverse circulation valve can be opened by pressurizing the pipe when thick oil flows out, so a casing can be lifted without oil.
Description
Technical field:
The utility model relates to a kind of oil exploration formation testing technical field of measurement and test, particularly a kind of test loop valve that pressurizes and open in bar and the pipe of throwing.
Background technology:
In the formation testing test process, domestic and international employed testing tool comprises MFE class testing instrument.And what use in this class testing instrument is the shear pin type reverse circulation valve.This class reverse circulation valve has following shortcoming: the one, and employed cutting off all is disposable, the use cost height; The 2nd, the employed difficulty of processing that cuts off is big, mainly is cutting off groove and will requiring height with the centralizer of endoporus of cutting off, and when deviation is big slightly, will cause the leakage of weak spot place greatly owing to borehole pressure; The 3rd, when the reverse circulation valve G.I.H degree of depth is dark, just need cut off the wall thickness thickening at weak spot place, be difficult for opening and thicken to cause easily to cut off; The 4th, when tripping out tubing string,, cause lock of tool drilling if misoperation can make the well that partly falls of cutting off that cuts off.The 5th, run into viscous crude, be difficult to break anti-circulation pin by caber, cause band oil to play pipe, cause operating environment to be polluted, easily the breaking out of fire accident.
The utility model content:
The technical problems to be solved in the utility model provides a kind of test loop valve gear that pressurization is opened in bar and the pipe of throwing, this device has been realized reduction use cost and difficulty of processing, the sealing performance of raising instrument, pump pressure when reducing anti-flushing well and can adopt when running into viscous crude in the pipe pressuring method to open reverse circulation valve can not cause band oil to play pipe.Overcome little, the on probation deficiency that well depth is shallow, method of operating is single, difficulty of processing is big of existing reverse circulation valve circulation area.
Technical solution adopted in the utility model is: a kind of test loop valve that pressurizes and open in bar and the pipe of throwing, by top connection, piston, piston shop bolt, urceolus, cut off, sliding sleeve, lower contact, sealing ring, small sealing ring and cut off cap and form, top connection, urceolus, lower contact are all adopted and are threaded; In the piston rod of top connection piston is housed, locate by the piston shop bolt between top connection and the piston, sealing ring and small sealing ring are arranged on the piston, have pressure relief vent and backwash flow orifice on the urceolus, sliding sleeve is housed in the urceolus, sliding sleeve is upper and lower all sealing ring, has the backwash flow orifice in the sealing ring upper end of sliding sleeve simultaneously; Cut off by the hole on the urceolus and be inserted in the stopper slot on the sliding sleeve, cut off cap and use engage thread to be screwed on the urceolus.
The utility model has adopted the rubber sealing ring and has strengthened the internal diameter of circulating valve.
The beneficial effects of the utility model are: the utility model is owing in the piston rod that has adopted top connection piston being housed, sealing ring and small sealing ring are arranged on the piston, have pressure relief vent and backwash flow orifice on the urceolus, sliding sleeve is housed in the urceolus, on the sliding sleeve, sealing ring is all arranged down, have the structure of backwash flow orifice simultaneously in the sealing ring upper end of sliding sleeve, thereby have and to throw bar and open reverse circulation valve and in pipe, suppress the function of opening reverse circulation valve, use cost and difficulty of processing have been reduced, improved the sealing performance of instrument, pump pressure when reducing anti-flushing well and can adopt when running into viscous crude in the pipe pressuring method to open reverse circulation valve can not cause band oil to play pipe.In addition, all in utility model, retain after all component work of the present utility model, can not produce the problem of dropping; The utility model has been realized the repeated use of rigid body parts owing to adopted the rubber sealing ring, has reduced cost of production; Because the utility model has strengthened the internal diameter of circulating valve, thereby has the advantage of the resistance when reducing well-flushing.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
As shown in drawings, a kind of test loop valve that pressurizes and open in bar and the pipe of throwing, by top connection 1, piston 2, piston shop bolt 3, urceolus 4, cut off 5, sliding sleeve 6, lower contact 7, sealing ring 8, small sealing ring 9 and cut off cap 10 and form, top connection 1, urceolus 4, lower contact 7 are all adopted and are threaded; Piston 2 is housed in the piston rod of top connection 1, piston shop bolt 3 is inserted in the locating slot on the piston 2 by the locating hole in the piston top connection 1, sealing ring 8 and small sealing ring 9 are arranged on the piston 2, urceolus 4 tops have pressure relief vent, the bottom has the backwash flow orifice, sliding sleeve 6 is housed in the urceolus 4, and sliding sleeve 6 is upper and lower all sealing ring 8, has the backwash flow orifice in sealing ring 8 upper ends of sliding sleeve 6 simultaneously; Cut off 5 and be inserted in the stopper slot on the sliding sleeve 6, cut off cap 10 and use engage thread to be screwed on the urceolus 4, prevent to cut off 5 holes from the urceolus 4 and scurry out by the hole on the urceolus 4.
Can throw the test loop valve that pressurization is opened in bar and the pipe and be connected on the oil pipe, be lowered in the well together with other testing tool.Owing on the piston 2 sealing ring 8 and small sealing ring 9 are arranged, the seal section that forms between sealing ring 8 and the small sealing ring 9 seals up the pressure relief vent on the urceolus 4, sliding sleeve 6 has two sealing rings 8 up and down, the seal section that forms between two sealing rings 8 seals up the backwash flow orifice on the urceolus 4 up and down, and tubing string well killing fluid outward just can not enter in the tubing string by the pressure relief vent and the backwash flow orifice of urceolus 4 like this.When needs are opened backwash flow orifice on the urceolus 4, in tubing string, drop into a weighted lever, weighted lever acts on the sliding sleeve 6, to cut off 5 cuts off, make sliding sleeve 6 descending, the seal section of two sealing ring 8 formation up and down on the sliding sleeve 6 leaves the backwash flow orifice on the urceolus 4, and the backwash flow orifice on the sliding sleeve 6 is just corresponding with the backwash flow orifice on the urceolus 4, the outer well killing fluid of tubing string enters in the tubing string by the backwash flow orifice on urceolus 4 and the sliding sleeve 6 like this, realizes the purpose of well-flushing, kill-job.If owing to there being thicker crude oil to cause weighted lever to cut off in the tubing string, at this moment then adopt the method for pressurization in the pipe with cutting off 5.Because the pipe internal pressure produces a downward thrust greater than the pipe external pressure on piston 2, promote the piston 2 descending piston shop bolts 3 of cutting off, and promote sliding sleeve 6 and move downward, will cut off 5 and cut off, make sliding sleeve 6 descending, thereby realize the purpose of well-flushing, kill-job.The contradiction that the utility model has structurally been avoided processing and used reduces difficulty of processing, and the instrument dependability is improved;
The utility model has adopted the rubber sealing ring, has realized the repeated use of rigid body parts, has reduced cost of production; The utility model has strengthened the internal diameter of circulating valve, the resistance when reducing well-flushing.
Claims (1)
1. can throw the test loop valve that pressurization is opened in bar and the pipe for one kind, by top connection (1), piston (2), piston shop bolt (3), urceolus (4), cut off (5), sliding sleeve (6), lower contact (7), sealing ring (8), small sealing ring (9) and cut off cap (10) and form, top connection (1), urceolus (4), lower contact (7) are all adopted and are threaded; It is characterized in that: piston (2) is housed in the piston rod of top connection (1), locate by piston shop bolt (3) between top connection (1) and the piston (2), sealing ring (8) and small sealing ring (9) are arranged on the piston (2), have pressure relief vent and backwash flow orifice on the urceolus (4), sliding sleeve (6) is housed in the urceolus (4), sliding sleeve (6) is upper and lower all sealing ring (8), has the backwash flow orifice in sealing ring (8) upper end of sliding sleeve (6) simultaneously; Cut off (5) and be inserted in the stopper slot on the sliding sleeve (6), cut off cap (10) and use engage thread to be screwed on the urceolus (4) by the hole on the urceolus (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206652152U CN201924885U (en) | 2010-12-17 | 2010-12-17 | Test circulation valve capable of flinging pipe and being opened by pressurizing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206652152U CN201924885U (en) | 2010-12-17 | 2010-12-17 | Test circulation valve capable of flinging pipe and being opened by pressurizing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201924885U true CN201924885U (en) | 2011-08-10 |
Family
ID=44428743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206652152U Expired - Fee Related CN201924885U (en) | 2010-12-17 | 2010-12-17 | Test circulation valve capable of flinging pipe and being opened by pressurizing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201924885U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375147A (en) * | 2012-04-24 | 2013-10-30 | 中国石油天然气股份有限公司 | Down-hole multi-stage separate-layer-fracturing switch device |
| CN105840141A (en) * | 2015-01-13 | 2016-08-10 | 中国石油天然气股份有限公司 | Impact type circulating valve |
| CN110887659A (en) * | 2019-12-25 | 2020-03-17 | 中国海洋石油集团有限公司 | Experimental device for evaluating safety of high-temperature high-pressure test circulating valve |
-
2010
- 2010-12-17 CN CN2010206652152U patent/CN201924885U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375147A (en) * | 2012-04-24 | 2013-10-30 | 中国石油天然气股份有限公司 | Down-hole multi-stage separate-layer-fracturing switch device |
| CN105840141A (en) * | 2015-01-13 | 2016-08-10 | 中国石油天然气股份有限公司 | Impact type circulating valve |
| CN105840141B (en) * | 2015-01-13 | 2018-10-16 | 中国石油天然气股份有限公司 | Impacting type circulating valve |
| CN110887659A (en) * | 2019-12-25 | 2020-03-17 | 中国海洋石油集团有限公司 | Experimental device for evaluating safety of high-temperature high-pressure test circulating valve |
| CN110887659B (en) * | 2019-12-25 | 2021-06-25 | 中国海洋石油集团有限公司 | Experimental device for evaluating safety of high-temperature high-pressure test circulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201924885U (en) | Test circulation valve capable of flinging pipe and being opened by pressurizing pipe | |
| CN101709632A (en) | Rotary reducing expansion device | |
| CN202531066U (en) | Blending and diluting valve capable of examining seal annularly for oil and gas fields | |
| CN112855134B (en) | Midway test device and test method for stationary drilling tool | |
| CN205445548U (en) | Outer sliding sleeve formula hydraulic pressure bleeder | |
| CN201507268U (en) | Step-by-step sealing detecting device | |
| CN201193506Y (en) | Blowout prevention pressure test oil drainage switch | |
| CN201318149Y (en) | Unidirectional inner blowout control pump-out type blanking plug | |
| CN200971768Y (en) | Stop valve capable of measuring pressure | |
| CN201810272U (en) | Ultrahigh-pressure normally open valve for acidification and liquid drainage | |
| CN202628032U (en) | Oil sleeve annulus injection valve | |
| CN2893127Y (en) | Hydraulic safety joint | |
| CN203394433U (en) | Bypass switch combined valve | |
| CN202500543U (en) | Hydraulic slide sleeve and pressure-bearing short connector device | |
| CN203022678U (en) | Blowout preventer pressure testing and boosting device | |
| CN212958562U (en) | Repeatedly usable's rotation type bleeder | |
| CN202152662U (en) | Water hammer resisting liquid feeding device for inflatable packer | |
| CN201810273U (en) | Ultrahigh-pressure normally closed valve for acidification and liquid drainage | |
| CN204024568U (en) | Water injection well oil jacket plugging device | |
| CN2740771Y (en) | Self-pulping arrow back pressure valve | |
| CN201486524U (en) | Underground annulus pressure opening valve | |
| CN201269188Y (en) | Novel sand prevention rod type oil pump | |
| CN2804372Y (en) | Coring tools able to detect clogging | |
| CN201358728Y (en) | Multifunctional anti-pollution pipe column | |
| CN201521280U (en) | Novel drill pipe valve |
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: 20110810 Termination date: 20111217 |