CN103306638A - Pressure-transmitting supporting automatic grouting valve float valve - Google Patents
Pressure-transmitting supporting automatic grouting valve float valve Download PDFInfo
- Publication number
- CN103306638A CN103306638A CN 201310261237 CN201310261237A CN103306638A CN 103306638 A CN103306638 A CN 103306638A CN 201310261237 CN201310261237 CN 201310261237 CN 201310261237 A CN201310261237 A CN 201310261237A CN 103306638 A CN103306638 A CN 103306638A
- Authority
- CN
- China
- Prior art keywords
- valve
- float
- support top
- float valve
- pressure
- 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.)
- Pending
Links
Landscapes
- Float Valves (AREA)
Abstract
The invention discloses a pressure-transmitting supporting automatic grouting valve float valve. The automatic grouting valve float valve is characterized in that a float valve is mounted in a float valve joint, a valve supporting device is welded in the float valve, a valve body seat of the float valve is hinged to a valve, the elasticity of a torsion spring on both the valve and the valve body seat enables the valve to close the valve body seat when the valve is in the free state, the supporting device balances the spring force for automatically closing the valve-type float valve according to the principle that a supporting spring has a certain supporting force (the spring force can be adjusted through changing the size of the spring) and the in-pipe flowing force generated by pressure difference inside and outside fluid in a well, and a supporting bar enables the valve to be always in the tightly open state to form a channel so as to achieve the purpose of automatic grouting. When well kick or blowout occurs in the pipe, the valve enables the supporting bar to compress the supporting spring under the action of fluid flowing into the pipe, the supporting bar retracts into a supporting box, and the valve is closed to achieve the purpose of a check valve. As pressure-transmitting small holes are obliquely formed in the valve, the pressure of liquid inside and outside the valve after the valve is closed is transmitted.
Description
Technical field
The mode of manual grouting is taked in operation to the present invention relates to not stop lower brill (lower oil pipe) in brill (lower oil pipe) process under oil drilling, but automatic grouting.Play the effect of ball-and-seat when the flow velocity of the tube fluids such as well kick, blowout reaches certain value, the generation of gas blowout accident in the pipe in the time of can stopping to pull out of hole can accurately record again standpipe pressure and ask and calculate accurately strata pressure behind control well kick, blowout closing well.
Background technology
Under oil drilling, bore the effect of only playing ball-and-seat in (lower oil pipe) process because of scene valve type float valve commonly used, and the restriction because of its bearing capacity and drilling rod (oil pipe) collapsoing strength, lower brill (lower oil pipe) is to prevent from easily causing when valve type float valve from causing losing efficacy because the pressure that bears is excessive well kick even gas blowout accident in the pipe during to certain well depth, anti-drilling rod (oil pipe) is squeezed to be ruined and causes the reason such as other complex accident, must stop lower brill (lower oil pipe) operation and in drilling rod (oil pipe), pour into mud, to avoid the generation of above-mentioned many complexity and accident.In addition because of the existence of ball-and-seat, drilling rod (oil pipe) transfer in the process for fear of the annular space that causes because of drilling rod (oil pipe) row of closing high return that speed causes that excessive surge pressure causes the complex situations such as leakage control drilling rod (oil pipe) lowering velocity.This has not only delayed a large amount of lower brills (lower oil pipe) time, has increased workman's labour intensity, and because of the movable untimely differential sticking accident that causes of drilling rod, retarding oil gas is explored progress in the time of also might stopping tripping operation toward the interior mud grouting of drilling rod.
Control well kick, valve type float valve because of scene usefulness after the blowout is complete closed, strata pressure can not be delivered on the standpipe pressure table by fluid column and try to achieve standpipe pressure, the method that can only take to open the circulation of throttle valve control small displacement is tried to achieve the closing well standpipe pressure, but the closing well standpipe pressure of trying to achieve like this is inaccurate, the strata pressure of namely trying to achieve also is inaccurate, the inaccurate well killing fluid density that goes out according to inaccurate formation pressure calculation can not ensure the once successful of kill-job, also might cause because well killing fluid density is inaccurate leakage and other complexity or accident in the Well Killing Process.
Summary of the invention
For the problems of the above-mentioned existence of on-the-spot valve type float valve, but purpose of the present invention has aimed to provide a kind of pressure transmission support top formula automatic grouting valve float valve.Its principle one is the power that flows in the pipe that has according to the support top spring that spring force that the principle balance autoshutdown valve type float valve valve of certain support force closes and borehole fluid inside and outside differential pressure cause, propping up push rod makes its valve be in all the time crack state, form the fluid passage, realize the purpose of automatic grouting.Valve is at lower push rod compression of the effect support top spring of working fluid in pipe when in managing well kick or blowout occuring, and in the push rod retraction top box, valve is closed, and plays the purpose of ball-and-seat, prevents from managing interior well kick, gas blowout accident.Avoid existing with valve type float valve can not automatic grouting drawback.The 2nd, open an aperture angled with the float valve axis at valve, this aperture neither affects closing of valve, can after closing, transmit at valve again the pressure of liquid inside and outside the valve, can in successful control valve, accurately record strata pressure after the well kick blowout, for calculating accurately well killing fluid density, kill-job once successfully provides technical guarantee.
The objective of the invention is to finish like this:
But pressure transmission support top formula automatic grouting valve float valve comprises float valve joint, float valve and valve support top installation composition.Float valve is made of upper valve body, upper sealing ring, gasket ring, middle sealing ring, valve valve block, valve, torsion spring, lower seal, pressure transmission aperture.Upper valve body and the screwed connection of valve valve block, upper sealing ring, gasket ring, middle sealing ring is enclosed within on the upper valve body, the internal diameter of the internal diameter of float valve and float valve joint is basically identical, in the float valve inner nosepiece wall convex circular bead surface is arranged, float valve places in the float valve joint, the lower seal lower end that is enclosed within valve valve block lower end withstands on and forms sealing on the convex circular bead surface, the small end of tool joint withstood float valve when the float valve joint was connected with drilling tool, be hinged with valve at the valve valve block, tiltedly have the pressure transmission aperture on the valve, one end of torsion spring is supported on the valve, the other end of torsion spring is supported on the valve valve block, and the elastic force of torsion spring can make the closed firmly valve valve block of valve when valve is in free state.Be welded with valve in the valve valve block inner chamber of valve hinge opposite side and prop up ejection device, it is made of a push rod, pressure compensation opening, a top box, support top spring, support top lid, check pin.Propping up push rod passes from the support top lid, push rod and support top lid respectively have a shoulder mutually to hang in the support top lid not to be ejected, the support top lid connects with a top box with screw thread, have on the support top lid and screw and loosen the instrument eyelet that the support top lid is used, the eyelet UNICOM of an eyelet and support top box body wherein, check pin passes this eyelet and prevents that the support top lid from getting loose, the periphery that props up top box and support top lid evenly has several pressure compensation openings, an inner chamber welding of propping up top box and valve valve block when ejection device is propped up in welding.
The beneficial effect of advantage of the present invention and generation is:
1, the present invention is simple in structure, adopts conventional part assembling, is easy to processing, reasonable and compact in structure, operation sequence is simple, easy-to-use, effectively prevented drilling fluid, landwaste and high-pressure oil gas stream is by refluxing in the drilling tool, avoid managing the risk of interior blowout, and cost is low, safe and reliable.
2, after the field trial success of the present invention, not only do not stop lower brill (lower oil pipe) the operation operation of being in the milk when applying, because not being the row of closing, reduced pressure exciting, can accelerate drilling rod (oil pipe) lowering velocity, save a large amount of lower brills (lower oil pipe) time.
3, the present invention has not only reduced post workman's labour intensity, can avoid simultaneously accelerating the oil-gas exploration progress because stopping the lock of tool drilling of the movable untimely generation of tripping operation.
4, have the pressure transmission aperture on the valve, this aperture neither affects closing of valve, can transmit again the pressure of liquid inside and outside the valve after valve is closed, and can accurately record strata pressure after successfully controlling the well kick blowout, for calculating accurately well killing fluid density, kill-job once successfully provides technical guarantee.
Description of drawings
Fig. 1 is sectional view of the present invention.
Fig. 2 is that the present invention props up the ejection device enlarged drawing.
The specific embodiment
As shown in Figure 1, but a kind of pressure transmission support top formula automatic grouting valve float valve comprises float valve joint 1, float valve and valve support top installation composition.Float valve is made of upper valve body 2, upper sealing ring 3, gasket ring 4, middle sealing ring 5, valve valve block 6, valve 7, torsion spring 8, lower seal 9, pressure transmission aperture 16.Upper valve body 2 is used screwed connection with valve valve block 6, upper sealing ring 3, gasket ring 4, middle sealing ring 5 is enclosed within on the upper valve body 2, the internal diameter of the internal diameter of float valve and float valve joint 1 is basically identical, at float valve joint 1 inwall the convex circular bead surface is arranged, float valve places in the float valve joint 1, lower seal 9 lower ends that are enclosed within valve valve block 6 lower ends withstand on and form sealing on the convex circular bead surface, the small end of tool joint withstood float valve when float valve joint 1 was connected with drilling tool, be hinged with valve 7 at valve valve block 6, tiltedly have pressure transmission aperture 16 on the valve 7, one end of torsion spring 8 is supported on the valve 7, the other end of torsion spring 8 is supported on the valve valve block 6, and the elastic force of torsion spring 8 can make valve 7 closed firmly valve valve blocks 6 when valve 7 is in free state.Be welded with valve in valve valve block 6 inner chambers of valve 7 hinge opposite side and prop up ejection device, it is made of a push rod 10, pressure compensation opening 11, a top box 12, support top spring 13, support top lid 14, check pin 15.Propping up push rod 10 passes from support top lid 14, push rod 10 and support top lid 14 respectively have a shoulder mutually to hang in the support top lid 14 not to be ejected, support top lid 14 usefulness screw threads connect with a top box 12, the instrument eyelet that screws and loosen support top lid 14 usefulness is arranged on the support top lid 14, the eyelet UNICOM of an eyelet and top box 12 bodies wherein, check pin 15 passes this eyelet and prevents that support top lid 14 from getting loose, the periphery that props up top box 12 and support top lid 14 evenly has several pressure compensation openings 11, only welds propping up the inner chamber of top box 12 with valve valve block 6 when ejection device is propped up in welding.
Several pressure compensation openings 11 that the periphery of top box 12 and support top lid 14 is opened can make a push rod 10 about suffered hydraulic pressure cancel out each other, guarantee to prop up the impact that push rod 10 is not subjected to ambient pressure environment.Prop up on the top cover 14 and have the instrument eyelet that screws and loosen support top lid 14 usefulness, process the special tool that screws and loosen support top lid 14 and prop up the support top power of a push rod 10 in the ejection device and make things convenient for other maintaining operation with the accessory, the adjusting that are convenient for changing in the ejection device.
Assemble valve and prop up ejection device, again valve is propped up in valve valve block 6 inner chambers that ejection device is welded to valve 7 hinge opposite side, only a welding top box 12.Position when the welding position that valve props up ejection device is acted on the top of propping up push rod 10 after the force compresses on the valve and closes a little less than valve 7 by the minimum fluid pressure that refluxes in pipe with a push rod 10; to guarantee that valve 7 fully contacts with the float valve end face, ensure well kick and blowout in effective control valve.
The pressure transmission aperture 16 of tiltedly opening on the valve 7 neither affects closing of valve 7, can after closing, transmit at valve 7 again the pressure of valve 7 inside and outside liquid, can accurately record strata pressure after successfully controlling the well kick blowout, for calculating accurately well killing fluid density, kill-job once successfully provides technical guarantee.
When propping up ejection device, the welding valve only the inner chamber welding of a top box 12 with valve valve block 6, comes the suitable aperture of governor valve 7 with the length that is convenient for changing support top spring 13 and a push rod 10.Should reach the purpose of automatic grouting, also will be in generator tube play the effect of ball-and-seat when well kick even blowout, ensure well control safety.
Claims (1)
1. but a pressure transmission support top formula automatic grouting valve float valve comprises float valve joint (1), float valve and valve support top installation composition, it is characterized in that float valve is by upper valve body (2), upper sealing ring (3), gasket ring (4), middle sealing ring (5), valve valve block (6), valve (7), torsion spring (8), lower seal (9), pressure transmission aperture (16) consists of, upper valve body (2) is used screwed connection with valve valve block (6), upper sealing ring (3), gasket ring (4), middle sealing ring (5) is enclosed within on the upper valve body (2), the internal diameter of the internal diameter of float valve and float valve joint (1) is basically identical, at float valve joint (1) inwall the convex circular bead surface is arranged, float valve places in the float valve joint (1), lower seal (9) lower end that is enclosed within valve valve block (6) lower end withstands on and forms sealing on the convex circular bead surface, float valve joint (1) when being connected with drilling tool the small end of tool joint withstand float valve, be hinged with valve (7) at valve valve block (6), tiltedly have pressure transmission aperture (16) on the valve (7), one end of torsion spring (8) is supported on the valve (7), the other end of torsion spring (8) is supported on the valve valve block (6), the elastic force of torsion spring (8) can make the closed firmly valve valve block (6) of valve (7) at valve (7) when being in free state, be welded with valve in valve valve block (6) inner chamber of valve (7) hinge opposite side and prop up ejection device, it is by a push rod (10), pressure compensation opening (11), prop up top box (12), support top spring (13), support top lid (14), check pin (15) consists of, propping up push rod (10) passes from support top lid (14), push rod (10) and support top lid (14) respectively have a shoulder mutually to hang in the support top lid (14) not to be ejected, support top lid (14) connects with a top box (12) with screw thread, the instrument eyelet that screws and loosen support top lid (14) usefulness is arranged on the support top lid (14), the eyelet UNICOM of an eyelet and top box (12) body wherein, check pin (15) passes this eyelet and prevents that support top lid (14) from getting loose, the periphery that props up top box (12) and support top lid (14) evenly has several pressure compensation openings (11), only welds propping up the inner chamber of top box (12) with valve valve block (6) when ejection device is propped up in welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310261237 CN103306638A (en) | 2013-06-16 | 2013-06-16 | Pressure-transmitting supporting automatic grouting valve float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310261237 CN103306638A (en) | 2013-06-16 | 2013-06-16 | Pressure-transmitting supporting automatic grouting valve float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103306638A true CN103306638A (en) | 2013-09-18 |
Family
ID=49132314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310261237 Pending CN103306638A (en) | 2013-06-16 | 2013-06-16 | Pressure-transmitting supporting automatic grouting valve float valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103306638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021988A (en) * | 2020-01-03 | 2020-04-17 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Control device for drilling string and application |
-
2013
- 2013-06-16 CN CN 201310261237 patent/CN103306638A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021988A (en) * | 2020-01-03 | 2020-04-17 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Control device for drilling string and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205605879U (en) | Water pressure test in borehole water pressure formula embolism drainage depressurization mechanism | |
| CN201202430Y (en) | Boring tool inner blowout preventer | |
| CN103306638A (en) | Pressure-transmitting supporting automatic grouting valve float valve | |
| CN203335029U (en) | Pressure transmission top-supported-type automatic grouting valve floating valve | |
| CA2367075A1 (en) | Method and system for testing a borehole by the use of a movable plug | |
| CN205778839U (en) | A kind of downhole pulser pressure balance seal device | |
| CN103628833A (en) | Top support type automatic grouting valve type float valve | |
| CN203334997U (en) | Propping-type automatic grouting trapdoor-type float valve | |
| CN103306620A (en) | Pressure-transmitting pin snapping and fracturing automatic grouting valve float valve | |
| CN109185487A (en) | A kind of novel rising stem (RS.) sand control gate valve and its anti-sand method | |
| CN203334998U (en) | Pressure transmission pin-pulled fracture-type automatic grouting valve floating valve | |
| CN201810272U (en) | Ultrahigh-pressure normally open valve for acidification and liquid drainage | |
| CN104895528B (en) | Tube safety valve | |
| CN112855133B (en) | Oil testing pipe column and oil testing method | |
| CN203334996U (en) | Valve float valve achieving automatic grouting through tensile fracture of pin bolt | |
| CN205352620U (en) | Airtight super high pressure vessel of test | |
| CN201810273U (en) | Ultrahigh-pressure normally closed valve for acidification and liquid drainage | |
| CN103603614A (en) | Pin snap type automatic grouting float valve | |
| CN203685086U (en) | Double-spring supporting and pulling type automatic grouting valve type floating valve | |
| CN201090797Y (en) | Oil tube pressure testing control valve | |
| CN220599765U (en) | Underground controllable internal blowout preventer for oil-gas well under-pressure or fracturing well blowout overflow state | |
| CN113309508B (en) | Ground stress testing equipment and testing method applied to water burst of drill hole opening | |
| CN204827360U (en) | Ground control test relief valve | |
| CN209539340U (en) | Bridge-type diplopore low voltage difference antireflux injection well downhole flow regulator | |
| CN208870572U (en) | A kind of coalbed gas logging downhole closing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |