CN204113216U - Insert pump snubbing serving control valve seat - Google Patents
Insert pump snubbing serving control valve seat Download PDFInfo
- Publication number
- CN204113216U CN204113216U CN201420576024.7U CN201420576024U CN204113216U CN 204113216 U CN204113216 U CN 204113216U CN 201420576024 U CN201420576024 U CN 201420576024U CN 204113216 U CN204113216 U CN 204113216U
- Authority
- CN
- China
- Prior art keywords
- valve
- assembly
- valve assembly
- insert pump
- spring base
- 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
Abstract
The utility model discloses a kind of insert pump snubbing serving control valve seat, belong to oilfield snubbing serving field, comprise: support ring seat, valve seat assembly and two valve assemblies, two valve assemblies comprise the first valve assembly and the second valve assembly, and the support outside of lower end of ring seat and the inner side of the upper end of valve seat assembly are socketed; Second valve assembly is positioned at the below of the first valve assembly, and each valve assembly comprises: cartridge and back-moving spring, and back-moving spring is positioned at the below of cartridge; Each valve assembly also comprises: valve and spring base, and valve is connected to the shoulder place of ring seat chamber and valve support chamber setting under the effect of the back-moving spring of valve assembly, and spring base is for supporting the back-moving spring of valve assembly; The cartridge of each valve assembly is socketed in outside each valve.The utility model solves the problem cannot effectively avoiding environment and oil reservoir to be polluted, and achieves the effect avoiding environment and oil reservoir to be polluted, for insert pump snubbing serving.
Description
Technical field
The utility model relates to oilfield snubbing serving field, particularly a kind of insert pump snubbing serving control valve seat.
Background technology
Snubbing serving is the operational method of lower tubular column and roofbolt by professional and technical personnel operates special installation in environment with pressure.Because snubbing serving does not use well killing fluid, therefore can protection of the environment and oil reservoir, avoid environment and oil reservoir to be polluted.
In prior art, sucker rod snubbing serving equipment mainly comprises: hoisting system, sucker rod slips group, hoister system, workbench and control system, when carrying out snubbing serving, first the pressure of the annular space of control oil pipe and sucker rod is carried out by the blowout preventer set in control system, and then rely on the hydraulic lifting system in control system and slip system, carry out the underground work such as actuating oil-pumping unit with pressure.
Existing sucker rod snubbing serving is adopted to carry out in the process that sucker rod trips out, the excessive oil made in stratum of strata pressure can be reduced by blowout preventer set, the gas blowout accident that gas flows into pit shaft and causes, but can not avoid completely, and due to high angle hole, (drilling well plagioclase is greater than 2 with the ratio of vertical depth, the well that hole angle is greater than 55 degree) a large amount of existence, sucker rod is made to need to carry paraffin scraper, the annexes such as centralizer and preventing covering upside down box cupling, and the diameter of these annexes is larger, can increase that sucker rod is with pressure removes difficulty, affect blowout prevention effect when sucker rod trips out, easily cause gas blowout accident, environment pollution can be caused after blowout, and carry out kill-job again after blowout, therefore environment and oil reservoir cannot be effectively avoided to be polluted.
Utility model content
In order to solve the problem cannot effectively avoiding environment and oil reservoir to be polluted, the utility model embodiment provides a kind of insert pump snubbing serving control valve seat.Described technical scheme is as follows:
Provide a kind of insert pump snubbing serving control valve seat, comprising:
Support ring seat, valve seat assembly and two valve assemblies, described two valve assemblies comprise the first valve assembly and the second valve assembly;
Described support ring seat is provided with longitudinally through ring seat chamber, described ring seat chamber is reducing cylinder, described ring seat chamber is provided with the first shoulder, the area of the upper bottom surface of described first shoulder is less than the area of bottom surface, described valve seat assembly is provided with longitudinally through valve support chamber, described valve support chamber is reducing cylinder, described valve support chamber is provided with the second shoulder, the area of the upper bottom surface of described second shoulder is less than the area of bottom surface, and the inner side of the outside of the lower end of described support ring seat and the upper end of described valve seat assembly is socketed;
It is inner that described two valve assemblies are positioned at described valve support chamber, and described second valve assembly is positioned at the below of described first valve assembly, and each described valve assembly comprises: cartridge and back-moving spring, and described back-moving spring is positioned at the below of described cartridge;
Described first valve assembly also comprises: the first valve and the first spring base, described first valve can with the lower end in contact of the locking jaw of insert pump, described first shoulder place is connected under the effect of the back-moving spring of described first valve assembly, the upper end of described first spring base is connected with the lower end of the back-moving spring of described first valve assembly, for supporting the back-moving spring of described first valve assembly, the valve bar of described first spring base and described first valve is socketed;
Described second valve assembly also comprises: the second valve and the second spring base, described second valve is connected to described second shoulder place under the effect of the back-moving spring of described second valve assembly, the upper end of described second spring base is connected with the lower end of the back-moving spring of described second valve assembly, for supporting the back-moving spring of described second valve assembly, described second spring base is fixedly connected with described valve seat assembly;
The cartridge of described first valve assembly is socketed in outside described first valve, and the cartridge of described second valve assembly is socketed in outside described second valve.
Optionally, described first valve assembly also comprises: standby cap and spacer pin, described standby cap sleeve is on the valve bar of described first valve, be threaded with described valve bar, described spacer pin passes the side opening of described standby cap and described valve bar, and described standby cap and spacer pin are for limiting the position of described first valve assembly.
Optionally, described second valve assembly also comprises: set bolt, described second spring base can be fixedly connected with described valve seat assembly by described set bolt.
Optionally, described first spring base and described second spring base are cylinder, and the height of described second spring base is greater than the height of described first spring base.
Optionally, each described valve assembly also comprises: packing element pressure pad and pressure cap, described packing element pressure pad and pressure cap are between described cartridge and described back-moving spring, the upper surface of described packing element pressure pad contacts with the soffit of described cartridge, the pressure cap of described first valve assembly is fixedly connected with the valve bar of described first valve, the pressure cap of described second valve assembly is fixedly connected with the valve bar of described second valve, the side of described pressure cap contacts with the soffit of described packing element pressure pad, and described packing element pressure pad and described pressure cap are used for fixing described cartridge.
The utility model provides a kind of insert pump snubbing serving control valve seat, because insert pump snubbing serving control valve seat comprises two valve assemblies, go upward to be connected on corresponding shoulder or to come downwards to by the valve of two valve assemblies and leave corresponding shoulder, close and open the oily passage of stream, after insert pump snubbing serving control valve seat cuts out (after playing insert pump and sucker rod to insert pump unblock), or (before lower insert pump and sucker rod to the locking of insert pump locking jaw) is all in closed condition before opening, therefore, actuating oil-pumping unit and insert pump all carry out under stress-free state, also not by the paraffin scraper that sucker rod carries, the impact of the major diameter annexes such as centralizer and preventing covering upside down box cupling, compared to existing sucker rod snubbing serving equipment when carrying out snubbing serving, environment and oil reservoir can be effectively avoided to be polluted.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of insert pump snubbing serving control valve seat that the utility model embodiment provides;
Fig. 2 is a kind of support ring seat of insert pump snubbing serving control valve seat of providing of the utility model embodiment and the structural representation of valve seat assembly;
Fig. 3 is the structural representation of the second valve assembly of a kind of insert pump snubbing serving control valve seat that the utility model embodiment provides;
Fig. 4 is a kind of standby cap of insert pump snubbing serving control valve seat of providing of the utility model embodiment and the structural representation of spacer pin.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Sucker-rod pumping method is the Movement transmit that utilizes sucker rod to be produced by the ground machine equipment oil pumping method to down-hole deep well pump.The bar of sucker-rod pumping method drives oil pipe and the sucker rod three parts that reciprocal reciprocating oil pumping system mainly comprises the oil pumper of above ground portion, the oil well pump of underground part and is connected ground oil pumper and downhole pump mid portion, wherein, oil pumper is for generation of the vertical reciprocating motion in ground, passing through connected sucker rod drives the piston in oil well pump to move back and forth, and is extracted on ground by crude oil in well.Oil pipe is that in well, crude oil is pumped to ground passage.Downhole pump is different according to its mode fixing in down-hole, can be divided into tubing pump and insert pump, and the piston in insert pump and insert pump is connected on sucker rod lower end.Sucker rod upper end connects oil pumper by oil pumping polish rod, for the reciprocating motion of oil pumper being passed to the piston of the insert pump of down-hole.
Further, insert pump is connected on the lower end of sucker rod after can assembling on the ground, be lowered in oil pipe with sucker rod, insert pump mainly comprises pump barrel, delivery valve, piston and inlet valve.In the suction process of upstroke and insert pump, sucker rod drives piston upwards, open under the effect of inlet valve pump barrel inside and outside differential pressure below piston, pump is Inhaling Crude Oil from well, simultaneously, delivery valve cuts out under the effect of upper piston area head of liquid, and piston is lifted to well head by the liquid in oil pipe above piston; In the discharge process of down stroke and insert pump, sucker rod drives piston to move downward, and delivery valve is opened under the effect of piston two-way pressure difference, and inlet valve cuts out under the effect of pump barrel inside and outside differential pressure, crude oil below piston in pump chamber is discharged to above piston by delivery valve, makes pump discharge crude oil.
The utility model embodiment provides a kind of insert pump snubbing serving control valve seat, as shown in Figure 1, be applied to insert pump 13 (thick dashed line part), this snubbing serving control valve seat comprises: support ring seat 1, valve seat assembly 2 and two valve assemblies, two valve assemblies comprise the first valve assembly A and the second valve assembly B.
It should be noted that, in Fig. 1 with the line indicated by y for line of demarcation, the left side of y is the outline drawing of two valve assemblies, and the right side of y is the sectional drawing of two valve assemblies, and the sectional drawing on right side can be described with reference to the outline drawing in left side.
Wherein, support ring seat 1 and be provided with longitudinally through ring seat chamber 14, as shown in Figure 2, ring seat chamber 14 is reducing cylinder, ring seat chamber 14 is provided with the first shoulder 15, the area of the upper bottom surface of the first shoulder 15 is less than the area of bottom surface, the cross sectional shape of the first shoulder 15 is trapezoidal, the lower end of the first shoulder 15 is provided with cylindric seal section 15-1, valve seat assembly 2 is provided with longitudinally through valve support chamber 16, valve support chamber 16 is reducing cylinder, valve support chamber 16 is provided with the second shoulder 17, the area of the upper bottom surface of the second shoulder 17 is less than the area of bottom surface, the cross sectional shape of the second shoulder 17 is trapezoidal, the lower end of the second shoulder 17 is provided with cylindric seal section 17-1, the support outside of lower end of ring seat 1 and the inner side of the upper end of valve seat assembly 2 are socketed, example, the support outside of ring seat lower end and the inner side of valve seat assembly upper end can be socketed by screw thread.
Two valve assemblies are positioned at valve support chamber 16 inside, and the second valve assembly B is positioned at the below of the first valve assembly A, and each valve assembly comprises: cartridge and back-moving spring, and back-moving spring is positioned at the below of cartridge.First valve assembly A comprises cartridge 4-1 and back-moving spring 7-1, and as shown in Figure 3, the second valve assembly B comprises cartridge 4-2 and back-moving spring 7-2.
Further, first valve assembly A also comprises: the first valve 3-1 and the first spring base 8-1, first valve 3-1 can with the lower end in contact of the locking jaw 18 of insert pump, the first shoulder 15 place is connected under the effect of the back-moving spring 7-1 of the first valve assembly A, the upper end of the first spring base 8-1 is connected with the lower end of the back-moving spring 7-1 of the first valve assembly A, for supporting the back-moving spring 7-1 of the first valve assembly A, the valve bar 12-1 of the first spring base 8-1 and the first valve 3-1 is socketed, it should be noted that, first valve 3-1 comprises valve bar 12-1, first spring base 8-1 is also for righting first valve 3-1.
As shown in Figure 3, second valve assembly B also comprises: the second valve 3-2 and the second spring base 8-2, second valve 3-2 is connected to the second shoulder 17 place under the effect of the back-moving spring 7-2 of the second valve assembly B, the upper end of the second spring base 8-2 is connected with the lower end of the back-moving spring 7-2 of the second valve assembly B, for supporting the back-moving spring 7-2 of the second valve assembly B, second spring base 8-2 is fixedly connected with valve seat assembly 2, example, the second spring base 8-2 can be fixed by screw thread with valve seat assembly 2 and be connected.It should be noted that, second spring base 8-2 is also for righting second valve 3-2, the part of the second shoulder more than 17 for line of demarcation, is denoted as C1 with the second shoulder 17 in the valve support chamber 16 of snubbing serving control valve seat by Fig. 1, and the part of the second shoulder less than 17 is denoted as C2.
It should be noted that, the cartridge 4-1 of the first valve assembly A is socketed in outside the first valve 3-1, and the cartridge 4-2 of the second valve assembly B is socketed in outside the second valve 3-2; First spring base 8-1 and the second spring base 8-2 is cylinder, and the height of the second spring base 8-2 is greater than the height of the first spring base 8-1; First valve 3-1 and the second valve 3-2 is a kind of one way valve, when playing insert pump and sucker rod, under the acting in conjunction of two back-moving springs and borehole pressure, the second valve 3-2 and the first valve 3-1 is up and close successively, two valves are connected on corresponding shoulder, shutoff oil stream data feedback channel; When lower insert pump and sucker rod, under the locking jaw of insert pump and the acting in conjunction of head of liquid, the first valve 3-1 and the second valve 3-2 is descending successively opens, two valves leave corresponding shoulder, open oil flow channel.
In sum, the insert pump snubbing serving control valve seat that the utility model embodiment provides, because insert pump snubbing serving control valve seat comprises two valve assemblies, go upward to be connected on corresponding shoulder or to come downwards to by the valve of two valve assemblies and leave corresponding shoulder, close and open the oily passage of stream, after insert pump snubbing serving control valve seat cuts out (after playing insert pump and sucker rod to insert pump unblock), or (before lower insert pump and sucker rod to the locking of insert pump locking jaw) is all in closed condition before opening, therefore, actuating oil-pumping unit and insert pump all carry out under stress-free state, also not by the paraffin scraper that sucker rod carries, the impact of the major diameter annexes such as centralizer and preventing covering upside down box cupling, compared to existing sucker rod snubbing serving equipment when carrying out snubbing serving, environment and oil reservoir can be effectively avoided to be polluted.
Further, first valve assembly A also comprises: standby cap 9 and spacer pin 10, see Fig. 1, as shown in Figure 4, standby cap 9 is enclosed within the valve bar 12-1 of the first valve, be threaded with valve bar 12-1, spacer pin 10 is through the side opening for cap 9 and valve bar 12-1, and standby cap 9 and spacer pin 10 are for limiting the position of the first valve assembly A.
It should be noted that, in Fig. 4 with the line indicated by y for line of demarcation, the left side of y is outline drawing, and the right side of y is sectional drawing, and the sectional drawing on right side can be described with reference to the outline drawing in left side.
As shown in Figure 3, the second valve assembly B also comprises: set bolt 11, the second spring base 8-2 can be fixedly connected with valve seat assembly 2 by set bolt 11, loses efficacy for preventing the second valve assembly B back-off.
As shown in figures 1 and 3, each valve assembly also comprises: packing element pressure pad and pressure cap, packing element pressure pad and pressure cap are between cartridge and back-moving spring, the upper surface of packing element pressure pad contacts with the soffit of cartridge, first valve assembly A comprises packing element pressure pad 5-1 and pressure cap 6-1, second valve assembly B comprises packing element pressure pad 5-2 and pressure cap 6-2, the pressure cap 6-1 of the first valve assembly A is fixedly connected with the valve bar 12-1 of the first valve 3-1, the pressure cap 6-2 of the second valve assembly B is fixedly connected with the valve bar 12-2 of the second valve 3-2, the side of pressure cap contacts with the soffit of packing element pressure pad, packing element pressure pad and pressure cap are used for fixing seal packing element, it should be noted that, second valve 3-2 comprises valve bar 12-2.The valve bar of each valve also may be used for valve corresponding to righting.
It can thus be appreciated that the first valve assembly A is followed successively by the first valve 3-1, cartridge 4-1, packing element pressure pad 5-1, pressure cap 6-1, back-moving spring 7-1, the first spring base 8-1, standby cap 9 and spacer pin 10 from top to bottom; Second valve assembly B is followed successively by the second valve 3-2, cartridge 4-2, packing element pressure pad 5-2, pressure cap 6-2, back-moving spring 7-2, the second spring base 8-2 and set bolt 11 from top to bottom.
Operating personnel can in advance by this insert pump snubbing serving control valve seat G.I.H, under the normal production status of oil well, as shown in Figure 1, the locking jaw 18 of insert pump 13 is locked on the first shoulder 15 of support ring seat 1 bottom, push down the first valve 3-1 and the second valve 3-2 simultaneously, make the first valve 3-1 and the second valve 3-2 be in opening, oil stream data feedback channel is unimpeded, can normally produce, when constructing, on carry sucker rod (Fig. 1 does not indicate) and insert pump 13, the locking jaw 18 of insert pump 13 is made to unlock up, first valve 3-1 and the second valve 3-2 loses the downward extruding of locking jaw 18, up under the acting in conjunction of two back-moving springs and borehole pressure, as shown in Figure 2, first two valves and two cartridge enter the seal section i.e. cylindric seal section 15-1 of the first shoulder 15 lower end of control valve seat and the cylindric seal section 17-1 place of the second shoulder 17 lower end, realize rubber seal, when well pressure is larger, the first valve 3-1 top conical surface can be sitting in the first supporting with it valve seat i.e. the first shoulder 15, the second valve 3-2 top conical surface can be sitting in the second supporting with it valve seat i.e. the second shoulder 17, realize metal sealing, by the first valve 3-1 and the second valve 3-2 double seal separately, ensure that oil flow channel thoroughly by shutoff.It should be noted that, rubber seal refers to the sealing that two cartridge are formed with corresponding cylindric seal section, and metal sealing refers to the sealing that two metal valves are formed with corresponding metal shoulder.
Further, play insert pump and sucker rod and the detailed process of closing oil flow channel can be: as shown in Figure 1, on carry sucker rod and insert pump 13, on put forward distance to be greater than the pump of insert pump long, now insert pump is raised, and simultaneously the locking jaw 18 of insert pump unlocks up, under the acting in conjunction of two back-moving springs and borehole pressure, second valve 3-2 and the first valve 3-1 is up and close successively, shutoff oil stream data feedback channel.Bleeding off overbottom pressure in oil pipe, without tripping out sucker rod and insert pump under pressure condition, using snubbing serving equipment to play flowline and insert pump snubbing serving control valve seat subsequently.
Lower insert pump and sucker rod the detailed process opening oil flow channel can be: as shown in Figure 1, first kill-job or use oil pipe snubbing serving equipment are by insert pump snubbing serving control valve seat and oil pipe G.I.H, the position of lower sucker rod and insert pump 13 to insert pump snubbing serving control valve seat again, in oil pipe, filling clear water or crude oil carry out balancing sleeve back pressure, sleeve pipe is that drilling well plays the pipe entered under after completion, for formation damage.Transfer sucker rod make insert pump 13 and locking jaw 18 descending, under the locking jaw 18 of insert pump and the acting in conjunction of head of liquid, first valve 3-1 and the second valve 3-2 is descending successively opens, the first valve 3-1 and the second valve 3-2 is made to leave corresponding shoulder, open oil flow channel, so far complete whole operating process.
Therefore, after insert pump snubbing serving control valve seat cuts out (rise insert pump and sucker rod to insert pump unlock after) or before opening (lower insert pump and sucker rod to insert pump locking jaw locking before) be all in closed condition, actuating oil-pumping unit and insert pump all carry out under stress-free state, the impact of the major diameter annex such as paraffin scraper, centralizer and preventing covering upside down box cupling of also not carrying by sucker rod.
In sum, the insert pump snubbing serving control valve seat that the utility model embodiment provides, because insert pump snubbing serving control valve seat comprises two valve assemblies, go upward to be connected on corresponding shoulder or to come downwards to by the valve of two valve assemblies and leave corresponding shoulder, close and open the oily passage of stream, after insert pump snubbing serving control valve seat cuts out (after playing insert pump and sucker rod to insert pump unblock), or (before lower insert pump and sucker rod to the locking of insert pump locking jaw) is all in closed condition before opening, therefore, actuating oil-pumping unit and insert pump all carry out under stress-free state, also not by the paraffin scraper that sucker rod carries, the impact of the major diameter annexes such as centralizer and preventing covering upside down box cupling, compared to existing sucker rod snubbing serving equipment when carrying out snubbing serving, environment and oil reservoir can be effectively avoided to be polluted.
In addition, it should be noted that, oil pipe snubbing serving equipment comprises: hoisting system, tubing slip group, hoister system, workbench and control system, when carrying out snubbing serving, need to throw blanking plug in oil pipe, interior shutoff is carried out to down-hole string, utilizes the blowout preventer set in control system to control the pressure of oil sets annular space, then rely on the hydraulic lifting system in the control system of snubbing serving equipment and slip system, carry out the underground work such as with pressure lower tubular column.Therefore, blanking plug is there will be by the inaccurate phenomenon in position of throwing when throwing blanking plug in oil pipe, or the phenomenon that the interior plugging action of blanking plug lost efficacy, and the insert pump snubbing serving control valve seat that the utility model embodiment provides, the effect of blanking plug in oil pipe can be played, do not need to throw blanking plug with in oil pipe, thus avoid because blanking plug is by the position gas blowout accident that is inaccurate or that cause because plugging action in blanking plug lost efficacy thrown, therefore, this insert pump snubbing serving control valve seat effectively can also avoid the gas blowout accident produced in oil pipe snubbing serving.
In sum, the snubbing serving control valve seat that the utility model embodiment provides, because insert pump snubbing serving control valve seat comprises two valve assemblies, go upward to be connected on corresponding shoulder or to come downwards to by the valve of two valve assemblies and leave corresponding shoulder, close and open the oily passage of stream, after insert pump snubbing serving control valve seat cuts out (after playing insert pump and sucker rod to insert pump unblock), or (before lower insert pump and sucker rod to the locking of insert pump locking jaw) is all in closed condition before opening, therefore, actuating oil-pumping unit and insert pump all carry out under stress-free state, also not by the paraffin scraper that sucker rod carries, the impact of the major diameter annexes such as centralizer and preventing covering upside down box cupling, compared to existing sucker rod snubbing serving equipment when carrying out snubbing serving, environment and oil reservoir can be effectively avoided to be polluted.In addition, when carrying out oil pipe snubbing serving, insert pump snubbing serving control valve seat can play the effect of blanking plug in oil pipe, do not need to throw blanking plug with in oil pipe, thus avoid because blanking plug is by the position gas blowout accident that is inaccurate or that cause because plugging action in blanking plug lost efficacy thrown, therefore, this insert pump snubbing serving control valve seat effectively can also avoid the gas blowout accident that produces in oil pipe snubbing serving.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. an insert pump snubbing serving control valve seat, is characterized in that, comprising:
Support ring seat, valve seat assembly and two valve assemblies, described two valve assemblies comprise the first valve assembly and the second valve assembly;
Described support ring seat is provided with longitudinally through ring seat chamber, described ring seat chamber is reducing cylinder, described ring seat chamber is provided with the first shoulder, the area of the upper bottom surface of described first shoulder is less than the area of bottom surface, described valve seat assembly is provided with longitudinally through valve support chamber, described valve support chamber is reducing cylinder, described valve support chamber is provided with the second shoulder, the area of the upper bottom surface of described second shoulder is less than the area of bottom surface, and the inner side of the outside of the lower end of described support ring seat and the upper end of described valve seat assembly is socketed;
It is inner that described two valve assemblies are positioned at described valve support chamber, and described second valve assembly is positioned at the below of described first valve assembly, and each described valve assembly comprises: cartridge and back-moving spring, and described back-moving spring is positioned at the below of described cartridge;
Described first valve assembly also comprises: the first valve and the first spring base, described first valve can with the lower end in contact of the locking jaw of insert pump, described first shoulder place is connected under the effect of the back-moving spring of described first valve assembly, the upper end of described first spring base is connected with the lower end of the back-moving spring of described first valve assembly, for supporting the back-moving spring of described first valve assembly, the valve bar of described first spring base and described first valve is socketed;
Described second valve assembly also comprises: the second valve and the second spring base, described second valve is connected to described second shoulder place under the effect of the back-moving spring of described second valve assembly, the upper end of described second spring base is connected with the lower end of the back-moving spring of described second valve assembly, for supporting the back-moving spring of described second valve assembly, described second spring base is fixedly connected with described valve seat assembly;
The cartridge of described first valve assembly is socketed in outside described first valve, and the cartridge of described second valve assembly is socketed in outside described second valve.
2. insert pump snubbing serving control valve seat according to claim 1, is characterized in that,
Described first valve assembly also comprises: standby cap and spacer pin, described standby cap sleeve is on the valve bar of described first valve, be threaded with described valve bar, described spacer pin passes the side opening of described standby cap and described valve bar, and described standby cap and spacer pin are for limiting the position of described first valve assembly.
3. insert pump snubbing serving control valve seat according to claim 1, is characterized in that,
Described second valve assembly also comprises: set bolt, described second spring base can be fixedly connected with described valve seat assembly by described set bolt.
4. insert pump snubbing serving control valve seat according to claim 1, is characterized in that,
Described first spring base and described second spring base are cylinder, and the height of described second spring base is greater than the height of described first spring base.
5. insert pump snubbing serving control valve seat according to claim 1, is characterized in that,
Each described valve assembly also comprises: packing element pressure pad and pressure cap, described packing element pressure pad and pressure cap are between described cartridge and described back-moving spring, the upper surface of described packing element pressure pad contacts with the soffit of described cartridge, the pressure cap of described first valve assembly is fixedly connected with the valve bar of described first valve, the pressure cap of described second valve assembly is fixedly connected with the valve bar of described second valve, the side of described pressure cap contacts with the soffit of described packing element pressure pad, and described packing element pressure pad and described pressure cap are used for fixing described cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576024.7U CN204113216U (en) | 2014-09-30 | 2014-09-30 | Insert pump snubbing serving control valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576024.7U CN204113216U (en) | 2014-09-30 | 2014-09-30 | Insert pump snubbing serving control valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113216U true CN204113216U (en) | 2015-01-21 |
Family
ID=52330540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420576024.7U Expired - Fee Related CN204113216U (en) | 2014-09-30 | 2014-09-30 | Insert pump snubbing serving control valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538452A (en) * | 2018-12-17 | 2019-03-29 | 中船重工中南装备有限责任公司 | Subsurface pump for heavy oil |
-
2014
- 2014-09-30 CN CN201420576024.7U patent/CN204113216U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538452A (en) * | 2018-12-17 | 2019-03-29 | 中船重工中南装备有限责任公司 | Subsurface pump for heavy oil |
| CN109538452B (en) * | 2018-12-17 | 2024-02-09 | 中船重工中南装备有限责任公司 | Thickened oil pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11255171B2 (en) | Method of pumping fluid from a wellbore by a subsurface pump having an interior flow passage in communication with a fluid chamber via a filter positioned in a side wall of a plunger | |
| US8316930B2 (en) | Downhole tubular connector | |
| WO2016033983A1 (en) | Coiled tubing fracturing multistage tool string and utilization method | |
| CN104343400B (en) | The controllable workover treatment equipment of no killing well and its operational method | |
| RU2006137251A (en) | METHOD FOR SEPARATE OPERATION OF OBJECTS OF EXPRESSIVE OR PRODUCING WELL AND INSTALLATION FOR ITS IMPLEMENTATION | |
| CN108386160A (en) | The deblocking type sand control pipe structure of screen casing under energy flushing pump | |
| CN104481484A (en) | Horizontal well segmented intermittent steam huff and puff injection-production integrated pipe column | |
| CN103422846B (en) | The fracturing integrated tubing string of open-hole horizontal well completion | |
| RU2533394C1 (en) | Cut-off valve | |
| CN103452531A (en) | Method for underbalanced tubing descending, non-well-killing gas lifting, rotary pumping, pump maintaining and tubing maintaining | |
| CN201050339Y (en) | Down-hole switch for pump recovery well snubbing environment-friendly operation | |
| CN107630696A (en) | The underground pressure testing device and its pressure-measuring method of a kind of ground blowout hookup | |
| CN203420698U (en) | Well completion fracture integrated pipe column for open hole horizontal well | |
| CN204386576U (en) | Horizontal well in segments Intermittent cyclic steam stimulation note adopts integrated pipe column | |
| CN108798615B (en) | Separate injection well completion pipe string of water injection well and snubbing well completion process | |
| CN207063942U (en) | A kind of oil field shaft mouth blowout hookup | |
| CN113790040A (en) | Oil extraction method of jet pump of series-connection type ultra-deep oil well | |
| WO2010089572A1 (en) | A downhole tubular connector | |
| CN108150134A (en) | Drilling well boring tool inside blow-out preventer and method | |
| CN204113216U (en) | Insert pump snubbing serving control valve seat | |
| CN203808923U (en) | Suspension releasing packer for oil-gas water well | |
| CN203702106U (en) | Dynamic pipe oil extraction device | |
| CN202810773U (en) | Balanced stage-by-stage unpacking washable well packer | |
| CN105239953A (en) | Blowout-preventive operation device for lifting and lowering rod pipe under pressure | |
| CN201687422U (en) | Self-seal lifting type tubing anchor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |