CN202000969U - Anti-pushing-up automatic unloading and clean-up tool - Google Patents
Anti-pushing-up automatic unloading and clean-up tool Download PDFInfo
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- CN202000969U CN202000969U CN201020670970XU CN201020670970U CN202000969U CN 202000969 U CN202000969 U CN 202000969U CN 201020670970X U CN201020670970X U CN 201020670970XU CN 201020670970 U CN201020670970 U CN 201020670970U CN 202000969 U CN202000969 U CN 202000969U
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Abstract
An anti-pushing-up automatic unloading and clean-up tool is applicable to the field of exploitation and gas recovery through a clean-up method for petroleum and natural gas. The tool is characterized in that a connecting neck is sleeved on an outer wall of a cylindrical main body and a slip is hung at the lower end of the connecting neck; an annular valve seat is fixed in a central hole at the lower end of the main body and a steel ball is arranged at the upper portion of the valve seat; a transverse hole is disposed at the sidewall of the central hole of the main body; a mandrel is threadingly fixed at the lower end of the central hole of the main body; plastic tube components, a spring seat and a spring are sleeved at the outer wall of the mandrel; an unloading hole is arranged at the upper end of the mandrel wall; an annular guiding head is threadingly fixed below the spring and at the lower end of the mandrel outer wall; and the spring is pressed by the guiding head. The effects are that the tool can be fixed at an oil pipe wall via the slip so as to prevent the tool from rapidly lifting to avoid twist of well-testing steel wires; the gas recovery through a clean-up method is realized through unloading of excess liquid by the unloading hole when mass of lifted liquid exceeds that of limited lifted liquid; and the tool is simple in structure, easy to machine and convenient in operation.
Description
Technical field
The utility model relates to the oil and gas exploitation technical field, and power tool in particularly a kind of natural gas pit shaft is that a kind of anti-top of going up is from off-load discharge opeing instrument.
Background technology
In the natural gas extraction middle and later periods, the shaft bottom energy shortage is carried into ground with the water with the gas-bearing formation output, and hydrops will appear in pit shaft.The existence of hydrops will increase the back pressure to the stratum, and limit its production capacity, finally gas-bearing formation can be killed fully so that closing well.At present, extensive use underground throttle device in Su Lige gas field is produced, and has serious hydrops more than the part gas well restriction choke, causes gas well to be killed fully.This type of well can't be taked traditional physical chemistry water pumping gas production method because the existence of underground throttle device and gas well energy are low, and traditional mechanical water pumping gas production method (as electric submersible pump) device structure complexity, technical difficulty is big, expense is high, is not suitable for gas field economical and effective exploitation.
The utility model content
The purpose of this utility model is: provide a kind of anti-top of going up from off-load discharge opeing instrument, be fixed on the tubing wall, when the lifting liquid quality overstepped the extreme limit the lifting quality, instrument unloaded the accent excess liquid by unloading hole, realized water pumping gas production; Overcome conventional water pumping gas production method and can't implement the deficiency of gas production to this type of well.
The technical solution adopted in the utility model is: the anti-top of going up mainly is made up of connection neck, main body, slips, steel ball, valve seat, packing element assembly, spring base, spring, guide head, mandrel from off-load discharge opeing instrument.Be with one and connect neck on the outer wall of cylindrical bodily form main body, be hung with slips in the lower end that connects neck, the lower end inwall of slips is on the tapered slope of main body; Slips can slide up and down and make slips to expand outwardly with connecting neck, is fixed on the borehole wall.Slips and the structure that is connected neck, those skilled in the art know.It is characterized in that: there is centre bore the lower end in main body, is fixed with annular valve seat in the centre bore of main body, and a steel ball is arranged on the top of valve seat; On the centre bore sidewall of main body, be evenly distributed with transverse holes; The position of transverse holes is on the top of steel ball; On the inwall of the lower end in main center hole screw thread is arranged, lower end, main center hole screw thread is fixed with mandrel, and mandrel has centre bore for the cylinder bodily form, and there is unloading hole mandrel wall upper end; On the outer wall of mandrel, be with the packing element assembly; Be with spring base on the bottom of packing element assembly and the outer wall at mandrel, spring base is an annular; On the bottom of spring base and outer wall, be with spring at mandrel; Be fixed with annular guide head in the bottom of spring and at the outer wall lower end of mandrel screw thread.The guide head holddown spring makes the packing element assembly closely contact with the main body lower surface.
In order to improve sealing, zero RunddichtringO is arranged between packing element assembly and mandrel.
Described packing element assembly is made up of rubber bowl and sleeve, and the rubber bowl is fixed on the outer wall of sleeve.
Described spring is the compression spring.
The beneficial effects of the utility model: the anti-top of going up of the utility model can be fixed on the tubing wall by slips from off-load discharge opeing instrument, avoids instrument to go up string rapidly piano wire is given a discount; When the lifting liquid quality oversteps the extreme limit the lifting quality, unload the accent excess liquid by unloading hole, realize water pumping gas production; This tool construction is simple, handling ease, with low cost, easy and simple to handle.
Description of drawings
Fig. 1 is that the anti-top of going up of the utility model is from off-load discharge opeing tool construction generalized section.
Among the figure, 1-connects neck, 2-main body, 3-slips, 4-steel ball, 5-valve seat, 6-zero RunddichtringO, 7-packing element assembly, 8-spring base, 9-spring, 10-guide head, 11-mandrel.
The specific embodiment
Embodiment 1: is example with an anti-top of going up from off-load discharge opeing instrument, and the utility model is described in further detail.
Consult Fig. 1.The anti-top of going up of the utility model is made up of connection neck 1, main body 2, slips 3, steel ball 4, valve seat 5, zero RunddichtringO 6, packing element assembly 7, spring base 8, spring 9, guide head 10, mandrel 11 from off-load discharge opeing instrument.Be with one and connect neck 1 on the outer wall of cylindrical bodily form main body 2, be hung with three slips 3 in the lower end that connects neck 1, the lower end inwall of slips 3 is on the tapered slope of main body 2.
There is centre bore lower end in main body 2, is fixed with an annular valve seat 5 in the centre bore of main body 2, and a steel ball 4 is arranged on the top of valve seat 5.On the centre bore sidewall of main body 2, be evenly distributed with four unloading holes; The position of transverse holes is on the top of steel ball 4; On the lower end inwall of main body 2 centre bores screw thread is arranged, main body 2 centre bore lower end screw threads are fixed with a mandrel 11, and mandrel 11 has centre bore for the cylinder bodily form, and there is a unloading hole mandrel 11 walls upper end; On the outer wall of mandrel 11, be with three packing element assemblies 7.Packing element assembly 7 is made up of a rubber bowl and a sleeve, and the rubber bowl is fixed on the outer wall of sleeve.Two zero RunddichtringOs 6 are arranged between each packing element assembly 7 and mandrel 11.In the bottom of packing element assembly 7 and be with spring base 8 on the outer wall of mandrel 11, spring base 8 is an annular; In the bottom of spring base 8 and be with spring 9 on the outer wall of mandrel 11, spring 9 is cylindric compression springs.Be fixed with an annular guide head 10 in the bottom of spring 9 and at the outer wall lower end of mandrel 11 screw thread.Guide head 10 holddown springs 9 make packing element assembly 7 closely contact with main body 2 lower surfaces.
The anti-use of going up the top of summary from off-load discharge opeing instrument.Consult Fig. 1.Connect before the use and lift the liquid tool string, instrument is in proper order from top to bottom: rope socket+weighted lever+bumper jar+fastening means+anti-top of going up is from off-load discharge opeing instrument.The course of work was finished by three steps: get liquid lifting, off-load and the anti-top of going up.
1, get the liquid lifting: will prevent going up the top with piano wire during operation and slowly transfer to more than the throttle positions from off-load discharge opeing instrument, instrument is from going into liquid level to arriving the throttle positions process, because liquid is to the effect of steel ball 4 resistances, steel ball 4 produces the gap with valve seat 5, liquid enters from mandrel 11 centre bores in the pit shaft, by the liquid pass hole of steel ball 4 with valve seat 5 gaps and main body 2, arrival instrument and borehole wall gap, because packing element assembly 7 and Well-wall sealer, spring 9 upwards pushes away packing element assembly 7 by spring base 8 mandrel 11 unloading holes is covered fully, zero RunddichtringO 6 is with packing element assembly 7 and mandrel 11 sealings, so following dark along with instrument, the 7 above hydrops amounts increases of packing element assembly; This moment, the adjusting of well head needle-valve gave rise to ground with packing element assembly 7 above hydrops along with carrying also on the piano wire.
2, off-load: upwards in the lifting process, when packing element assembly 7 above hydrops pressure are preset compressive tension above spring 9, packing element assembly 7 with spring base 8 to lower compression spring 9, this moment, packing element assembly 7 moved downward with respect to mandrel 11, mandrel 11 unloading holes expose and contact with packing element assembly 7 above lifting liquid, packing element assembly 7 above liquid flow in the pit shaft by mandrel 11 unloading holes, when packing element assembly 7 above hydrops pressure equaled the default compressive tension of spring 9, spring 9 made packing element assembly 7 cover mandrel 11 unloading holes fully by spring base 8 again.
3, the anti-top of going up: upwards in the lifting process, increase when the pit shaft air-flow is intermittent suddenly, instrument pressure reduction increase up and down meanwhile, tool body 2 will be gone up string rapidly, owing to connect neck 1, slips 3 and main body 2 relative motions, connect neck 1, slips 3 because effect of inertia still keeps recommending lifting speed on former, slips 3 is subjected to stopping of main body 2 conical surfaces, supports on the borehole wall, and the entire tool seat is encapsulated on the borehole wall, avoid instrument to go up string rapidly piano wire is given a discount, cause down-hole accident.
Claims (4)
1. the anti-top of going up mainly is made up of connection neck (1), main body (2), slips (3), steel ball (4), valve seat (5), packing element assembly (7), spring base (8), spring (9), guide head (10), mandrel (11) from off-load discharge opeing instrument; Be with one and connect neck (1) on the outer wall of cylindrical bodily form main body (2), be hung with slips (3) in the lower end that connects neck (1), the lower end inwall of slips (3) is on the tapered slope of main body (2); It is characterized in that: there is centre bore the lower end in main body (2), is fixed with annular valve seat (5) in the centre bore of main body (2), on the top of valve seat (5) steel ball (4) is arranged; On the centre bore sidewall of main body (2), be evenly distributed with transverse holes; The position of transverse holes is on the top of steel ball (4); On the lower end inwall of main body (2) centre bore screw thread is arranged, main body (2) centre bore lower end screw thread is fixed with mandrel (11), and mandrel (11) has centre bore for the cylinder bodily form, and there is unloading hole mandrel (11) wall upper end; On the outer wall of mandrel (11), be with packing element assembly (7); In the bottom of packing element assembly (7) and be with spring base (8) on the outer wall of mandrel (11), spring base (8) is an annular; In the bottom of spring base (8) and on the outer wall of mandrel (11), be with spring (9); Be fixed with annular guide head (10) in the bottom of spring (9) and at the outer wall lower end of mandrel (11) screw thread; Guide head (10) holddown spring (9) makes packing element assembly (7) closely contact with main body (2) lower surface.
2. the anti-top of going up according to claim 1 is characterized in that: between packing element assembly (7) and mandrel (11) zero RunddichtringO (6) is arranged from off-load discharge opeing instrument.
3. the anti-top of going up according to claim 1 is from off-load discharge opeing instrument, and it is characterized in that: described packing element assembly (7) is made up of rubber bowl and sleeve, and the rubber bowl is fixed on the outer wall of sleeve.
4. the anti-top of going up according to claim 1 is characterized in that from off-load discharge opeing instrument: described spring (9) is the compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020670970XU CN202000969U (en) | 2010-12-10 | 2010-12-10 | Anti-pushing-up automatic unloading and clean-up tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020670970XU CN202000969U (en) | 2010-12-10 | 2010-12-10 | Anti-pushing-up automatic unloading and clean-up tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202000969U true CN202000969U (en) | 2011-10-05 |
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ID=44703714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020670970XU Expired - Lifetime CN202000969U (en) | 2010-12-10 | 2010-12-10 | Anti-pushing-up automatic unloading and clean-up tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202000969U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943174A (en) * | 2021-04-26 | 2021-06-11 | 陕西欣泰嘉石油科技有限公司 | Sealed shaft forced drainage tool and method for gas well |
| CN115306343A (en) * | 2022-08-25 | 2022-11-08 | 西安荣达石油工程有限公司 | Vertical pipe flow double sealer |
-
2010
- 2010-12-10 CN CN201020670970XU patent/CN202000969U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943174A (en) * | 2021-04-26 | 2021-06-11 | 陕西欣泰嘉石油科技有限公司 | Sealed shaft forced drainage tool and method for gas well |
| CN115306343A (en) * | 2022-08-25 | 2022-11-08 | 西安荣达石油工程有限公司 | Vertical pipe flow double sealer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |