CN2186295Y - Gravity compressed drip - Google Patents
Gravity compressed drip Download PDFInfo
- Publication number
- CN2186295Y CN2186295Y CN 94225974 CN94225974U CN2186295Y CN 2186295 Y CN2186295 Y CN 2186295Y CN 94225974 CN94225974 CN 94225974 CN 94225974 U CN94225974 U CN 94225974U CN 2186295 Y CN2186295 Y CN 2186295Y
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- Prior art keywords
- bleeder
- valve
- oil
- screw thread
- match
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- Expired - Fee Related
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Abstract
The utility model provides a gravity compressed oil drip for checking and maintaining the pump of an oil pumping machine with production downtime in oil fields. A new structure is composed of the oil drip and an oil pump, wherein, the oil drip is composed of a valve push rod, a screw plug, a clamp spring, a clamp spring seat, a sliding bush, a seal ring, a compression spring, a housing and a lower joint. The upper end of the housing is connected with a pump barrel, and the lower joint is connected with a fixed valve. Under the special conditions that an oil pumping rod can not be lifted due to breakage, a pump diameter is larger than the diameter of an oil tube, etc., and crude oil in the oil tube can still be drained back into a casing tube. The utility model has the advantages of simple structure, convenient installation, reliable working, wide application range, etc.
Description
The utility model relates to isolated plant under the oil well, particularly a kind of gravity compression bleeder.
When rod-pumped well stops production inspection pump or workover treatment, need the fluid in the oil pipe to be released in the oil well casing with bleeder.Existing " impacting type deep well pump bleeder " (application number 91228004) after sucker rod and oil well pump piston need being tripped out, could throw trip rod in well.When some can not trip out under the rod parting, pump piston can not trip out, just can not adopt the method that trip rod severs the pin draining of throwing in, even sucker rod and pump piston can all trip out, but because oil is thick in the oil pipe, the descending resistance of trip rod is big, and impact is not enough, pin hits constantly, can not draining.This bleeder can only be used for the situation of pump footpath less than tubing diameter on the pump.A kind of in addition " hydraulic anchor bleeder " (patent No. 86204467), when it the slip insert contact position casing deformation or when damage is arranged, slip insert can not be supported on the casing wall very reliably, and the draining hole will be opened draining automatically under the oil pumping state, and crude oil can not be drawn on the ground.This card phenomenon of taking off happens occasionally, and especially long oil well of production time because of the casing damage that the slip insert place repeatedly is installed is heavier, takes off the easier generation of card phenomenon.
The purpose of this utility model just is the shortcoming and defect part at prior art and above-mentioned patent, and a kind of gravity compression bleeder is provided.It can be widely used in different well ' s conditions and various pump footpath, and is simple in structure, and reliable operation is easy for installation.
Above-mentioned purpose of the present utility model is realized by following technical proposals:
This bleeder be installed in the standing valve of oil well pump above, below the travelling valve, with the original piston of oil well pump, pump barrel, travelling valve cover, valve ball and valve seat be common to constitute a kind of new structure.It is characterized in that bleeder partly comprises valve push rod, plug, jump ring, clip spring seat, sliding sleeve, sealing ring, compression spring, housing and lower contact.The housing upper end is connected with pump barrel, and the lower end is connected with lower contact.The valve push rod is in the housing center, and valve ball is withstood in the upper end, and the lower end is connected with clip spring seat.It below the clip spring seat compression spring.Below the compression spring is lower contact.Plug is in push rod and clip spring seat periphery, and the upper end is connected with the valve cover and withstands valve seat.Valve seat upper end is pushed down by the valve cover, and the sliding sleeve lower end is connected with clip spring seat, is to compress spring below it.Jump ring is in clip spring seat top, is push rod above it.Sealing ring is installed in sliding sleeve cooperates draining hole, interface with housing upper and lower position.
The shell of above-mentioned bleeder, upper end have the internal thread of external screw thread and pump barrel to match, and the lower end has the external screw thread of internal thread and lower contact to match, and there is convex in middle uniform several radially drainings hole more than the draining hole.
The valve push rod of above-mentioned bleeder, the upper surface is sphere and valve ball matches, and the bottom is cone shape, and the lower end has the external screw thread of internal thread and clip spring seat to match.
The clip spring seat of above-mentioned bleeder, there is external screw thread the upper end, and the jump ring groove is arranged below the screw thread, and the stage casing diameter is thinner, and lower end diameter more slightly is shoulder shape, and the shoulder cylindrical has external screw thread and sliding sleeve internal thread to match, uniform several axial fuel inlets hole on the shoulder.
The lower contact of above-mentioned bleeder, middle part have the internal thread of external screw thread and housing to match, and the lower end has internal thread to be connected with standing valve, and the stage casing internal diameter is less than the epimere internal diameter.Internal diameter is interior shoulder shape, matches with compression spring size.
The plug of above-mentioned bleeder, upper end have the internal thread of external screw thread and valve cover lower end to match, and middle uniform several radially oil outlets have the jump ring groove on the inwall under the hole, match with the jump ring cylindrical.
The sliding sleeve of above-mentioned bleeder, lower end have the external screw thread of internal thread and clip spring seat to match, and its cylindrical has two seal grooves.
By the said structure feature as can be seen, the utility model has been broken through the pin of prior art and has been cut off the draining conventional concepts, has also just avoided a series of shortcoming and defect parts of prior art.The utility model is not subjected to whether disconnected sucker rod take off, the influence of factors such as whether pump piston trips out, pump footpath size, and all pumpingh wells all can use, and oil well casing and its device are not all caused damage.Also has simple in structure, reliable operation, easy for installation, advantage such as manufacturing cost is lower.
Accompanying drawing is a general structure schematic diagram of the present utility model.
Details are as follows to embodiment of the present utility model in conjunction with the accompanying drawings:
1 to 5 is parts of existing oil well pump among the figure, the 1st, and pump piston, the 2nd, pump barrel, the 3rd, valve cover, the 4th, valve ball, the 5th, valve seat.6 to 14 is parts of the present utility model, the 6th, and valve ball push rod, the 7th, plug, the 8th, jump ring, the 9th, clip spring seat, the 10th, sliding sleeve, the 11st, sealing ring, the 12nd, compression spring, the 13rd, housing, the 14th, lower contact.
Valve cover 3 has axially uniform oilhole A.There is oilhole B at the center of valve seat 5.Uniform 4 oil outlet C in the middle of the plug.Uniform 4 draining hole D in the middle of the housing 13.Uniform 4 the axial fuel inlet hole E in the bottom of clip spring seat 9.F is the oil-feed chamber.
This bleeder is installed between downhole pump and the standing valve.The upper and lower end screw thread of its housing 13 is connected with the screw thread (not drawing standing valve among the figure) of pump barrel 2, standing valve respectively.Pump barrel 2 built-in pump pistons 1, pump piston 1 is connected with sucker rod (draw at the end among the figure). Parts 1,3,5,7 are connected to a fixed one, and drive valve ball 4 together with the sucker rod uplink and downlink.Parts 6.8.9.10.11 is connected to a fixed one, and it is the stroke stroke up and down of sliding sleeve 10 just up and down, is its upper limit position shown in the figure.Under the oil recovery state, when carrying on the sucker rod, parts 1.3.4.5.7 is also with carrying on the sucker rod, valve ball 4 falls into hole B, crude oil is come in from the lower end standing valve in the well, enters chamber F. this moment through hole E again, and parts 6.8.9.10.11 is supported by spring 12 pretightning forces, be in shown position, draining hole D is sealed.When sucker rod was descending, parts 1.3.4.5.7 was together descending, and valve ball 4 is by the crude oil jack-up in the lower chambers, the oil pipe of crude oil above hole B and A enter.When upwards carrying sucker rod again, valve ball 4 is sealed the B hole again, the crude oil in the oil pipe promptly from well head by extraction.It more than is exactly normal oil extraction operation process.
When stop production inspection pump or workover treatment need draining, with under the sucker rod on earth, jump ring 8 enters in the groove of plug 7, the position makes spring 12 pressurized sliding sleeves 10 descending as shown, and valve ball 4 is by push rod 6 jack-up simultaneously, draining hole D is opened, and the crude oil in the oil pipe promptly returns in the sleeve pipe through hole A.B.C.D earial drainage.Also sucker rod and parts 1.3.4.5.7 all can be tripped out, throw in 2 or 3 sucker rods on ground to the down-hole then, under the sucker rod action of gravity, spring 12 is compressed, and sliding sleeve 10 glides, the draining hole D draining that is opened.
When rod parting, disconnected sucker rod and the parts 1.3.4.5.7 that takes off under sentencing can not trip out.In the case, the disconnected gravity that takes off under sentencing also is enough to compress spring 12, makes sliding sleeve 10 descending, and push rod 6 is with the automatic draining of valve ball 4 jack-up simultaneously.
When pump footpath during greater than tubing diameter, pump piston 1 will could be connected with sucker rod by disjointed device.Disjointed device does not trip out with the lower part, and this part weight is added the rod weight of casting, and is enough to make draining hole D to open draining yet.
From the draining recovering state to the oil pumping duty, carry sucker rod on needing, plug 7 is risen and jump ring 8 disengagings, and no longer contact in oil pumping process, at this moment, spring force makes sliding sleeve 10 return to the diagram position, if sealing has the foul spring force that sliding sleeve 10 is risen to reset in the D. well of draining hole, when on when carrying sucker rod, because the effect of jump ring 8, drive clip spring seat 9 and sliding sleeve 10 and move up, help to overcome the foul resistance sliding sleeve 10 risings are resetted.
Claims (7)
1, a kind of gravity compression bleeder, with the original piston of oil well pump, pump barrel, travelling valve, a kind of new structure of the common formation of valve cover and valve seat, it is characterized in that bleeder partly comprises the valve push rod, plug, jump ring, clip spring seat, sliding sleeve, sealing ring, the compression spring, housing and lower contact, the housing upper end is connected with pump barrel, the lower end is connected with lower contact, the valve push rod is in the housing center, valve ball is withstood in the upper end, the lower end is connected with clip spring seat, it below the clip spring seat compression spring, below the compression spring is lower contact, plug is in push rod and clip spring seat periphery, the upper end is connected with the valve cover and withstands valve seat, and the valve seat upper end is pushed down by the valve cover, and the sliding sleeve lower end is connected with clip spring seat, it below it compression spring, jump ring is in clip spring seat top, is push rod above it, sealing ring be installed in sliding sleeve cooperate with housing draining hole, interface on, following position.
2, gravity compression bleeder according to claim 1, the shell upper end that it is characterized in that bleeder has the internal thread of external screw thread and pump barrel to match, the lower end has the external screw thread of internal thread and lower contact to match, and there is convex in middle uniform several radially drainings hole more than the draining hole.
3, gravity compression bleeder according to claim 1, the valve push rod upper surface that it is characterized in that bleeder is sphere and valve ball matches, and the bottom is cone shape, and the lower end has the external screw thread of internal thread and clip spring seat to match.
4, gravity compression bleeder according to claim 1, there is external screw thread the clip spring seat upper end that it is characterized in that bleeder, the jump ring groove is arranged below the screw thread, the stage casing diameter is thinner, lower end diameter more slightly is the shoulder type, the shoulder cylindrical has the internal thread of external screw thread and sliding sleeve to match, uniform several axial fuel inlets hole on the shoulder.
5, gravity compression bleeder according to claim 1, the lower contact middle part that it is characterized in that bleeder has the internal thread of external screw thread and housing to match, and the lower end has internal thread to be connected with standing valve, and the stage casing internal diameter is less than the epimere internal diameter, shoulder type in being matches with compression spring size.
6, gravity compression bleeder according to claim 1 is characterized in that the plug upper end of bleeder has the internal thread of external screw thread and valve cover lower end to match, and middle uniform several radially oil outlets have the jump ring groove on the inwall under the hole, match with the jump ring cylindrical.
7, gravity compression bleeder according to claim 1 is characterized in that the sliding sleeve lower end of bleeder has the external screw thread of internal thread and clip spring seat to match, and its cylindrical has two seal grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225974 CN2186295Y (en) | 1994-03-16 | 1994-03-16 | Gravity compressed drip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225974 CN2186295Y (en) | 1994-03-16 | 1994-03-16 | Gravity compressed drip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186295Y true CN2186295Y (en) | 1994-12-28 |
Family
ID=33839049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94225974 Expired - Fee Related CN2186295Y (en) | 1994-03-16 | 1994-03-16 | Gravity compressed drip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186295Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329242A (en) * | 2014-09-05 | 2015-02-04 | 胜利油田北方实业集团有限责任公司 | Pipe type oil suction pump |
| CN106122004A (en) * | 2016-08-10 | 2016-11-16 | 姜经志 | Sand discharge pressure release single flow device |
-
1994
- 1994-03-16 CN CN 94225974 patent/CN2186295Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329242A (en) * | 2014-09-05 | 2015-02-04 | 胜利油田北方实业集团有限责任公司 | Pipe type oil suction pump |
| CN106122004A (en) * | 2016-08-10 | 2016-11-16 | 姜经志 | Sand discharge pressure release single flow device |
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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 |