CN204126880U - The oil pump plunger piston of oil field plunger oil-well pump with twin-stage motive sealing - Google Patents
The oil pump plunger piston of oil field plunger oil-well pump with twin-stage motive sealing Download PDFInfo
- Publication number
- CN204126880U CN204126880U CN201420513983.4U CN201420513983U CN204126880U CN 204126880 U CN204126880 U CN 204126880U CN 201420513983 U CN201420513983 U CN 201420513983U CN 204126880 U CN204126880 U CN 204126880U
- Authority
- CN
- China
- Prior art keywords
- oil
- plunger
- motive sealing
- piston
- center tube
- 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
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses the oil pump plunger piston of a kind of oil field plunger oil-well pump with twin-stage motive sealing, relate to oil field equipment.Oil pump plunger piston is divided into upper and lower two sections, and two sections of plungers install two groups of motive sealing plunger assemblies respectively, often organizes motive sealing plunger assembly bottom and is all provided with unidirectional traveling valve, connected between two groups of motive sealing plunger assemblies by connecting sleeve.Under two groups of motive sealing plunger assemblies are fine status, only have the motive sealing plunger assembly work on top, lower seal assembly only plays leading role.If when there is the situation of leakage or inefficacy in upper travelling valve ball, valve seat, lower motive sealing plunger assembly startup work.If when there is the situation of leakage or inefficacy in upper seal section, lower motive sealing plunger assembly pressure startup work.The alternation of upper and lower two groups of motive sealing plunger assemblies, is equivalent to installation two oil pump plunger pistons of once going into the well, the work of two oil pump plunger piston interaction compensation, reaches and extends oil well pump working life, reduced well, the effect of operations number of going into the well.
Description
Technical field
The utility model relates to a kind of for oil field equipment, is specifically related to the oil pump plunger piston of a farming plunger oil-well pump with twin-stage motive sealing.
Background technique
Current oil field ground oil production equipment is still based on pumping unit, underground equipment oil well pump matching used with it is mainly the hard plunger of common metal, the seal section of conventional plunger is all at about 1.2 meters, owing to being rigidity friction between plunger and pump barrel, special in viscous crude, fluid sand content many, containing the oil well of polymer, in use often there is the phenomenons such as power consumption is large, pump efficiency is low, frictional resistance is large, wastage is large, the life-span is short, holddown, directly strengthen cost for oil production.There is the soft plunger that is in various forms in oil recovery field in recent years, although decrease wearing and tearing between plunger and pump barrel, reduce the wastage, the passing of time, working life, rate of fault was higher far away from conventional pumps.The soft plunger oil pump that current oil field uses only installs one group of black box, once seal failure, the well that must stop production inspection pump, brings a lot of drawback to field operation.
Summary of the invention:
In order to solve the technical problem, the utility model provides the oil pump plunger piston of a kind of oil field plunger oil-well pump with twin-stage motive sealing, oil pump plunger piston is divided into upper and lower two sections, two sections of plungers install two groups of motive sealing plunger assemblies respectively, often organize motive sealing plunger assembly bottom and be all provided with unidirectional traveling valve, connected by connecting sleeve between two groups of motive sealing plunger assemblies, connecting sleeve arranges discharge orifice.Under two groups of motive sealing plunger assemblies are fine status, only have the motive sealing plunger assembly work on top, lower seal assembly only plays leading role.If when the situation of leakage or inefficacy appears in upper travelling valve ball, valve seat, lower motive sealing plunger assembly startup work, upper black box only plays leading role.If when the situation of leakage or inefficacy appears in upper seal section, when plunger is moved to top dead center by lower dead center, lower motive sealing plunger assembly pressure startup work, upper black box only plays leading role.
The utility model is achieved through the following technical solutions: the oil pump plunger piston of a kind of oil field plunger oil-well pump with twin-stage motive sealing, and it comprises: upper shed valve bonnet, upper centralizer, center tube, seal section, upper traveling valve cage, lower travelling valve cover and lower centralizer.Travelling valve ball and upper travelling valve seat is installed in described upper traveling valve cage.In described lower travelling valve cover, lower travelling valve ball and lower travelling valve seat are installed.It is characterized in that: described oil pump plunger piston is divided into upper and lower two sections, upper and lower two sections of oil pump plunger pistons install the identical upper seal section of two groups of structures and lower seal section respectively, connect between upper and lower seal section with connecting sleeve.Described center tube is divided into upper center tube and lower center tube two sections; Upper and lower seal section is by the upper compensation cover, stuffing box gland and the lower compensation cover that are sleeved on successively from top to bottom on upper and lower center tube outer tube wall.Piston set ring on described stuffing box gland outer tube wall.Described piston ring is steel annulus, cutting openings groove on the bus of annulus; Piston ring has many, many piston ring gapless arrangements successively; The cylindrical of piston ring and pump barrel endoporus are sealing surface.
The lower end of described upper center tube is connected with upper traveling valve cage by screw thread.The upper end of upper center tube is connected with upper centralizer and upper shed valve bonnet respectively by screw thread and locks.
Described lower center tube lower end is connected with lower travelling valve cover by screw thread.Described lower travelling valve cover is connected with lower centralizer by screw thread; Lower center tube upper end is connected with connecting sleeve by screw thread.Described connecting sleeve upper end is connected with upper traveling valve cage by screw thread.
Arrange adjusting nut between described lower seal section and connecting sleeve, lower center tube and connecting sleeve are locked by described adjusting nut.
Described connecting sleeve is the pipe with step, and in stage, place is provided with discharge orifice.
Described discharge orifice has three, and three discharge orifices are uniform to be produced in the peripheral wall of connecting sleeve.
The beneficial effects of the utility model are:
1, upper and lower two groups of motive sealing plunger assemblies overlap alternation step by step by commutation even part, be equivalent to installation two oil pump plunger pistons of once going into the well, the work of two oil pump plunger piston interaction compensation, reaches and extends oil well pump working life, reduced well, the effect of operations number of going into the well.
2, compact structure, make, easy for installation, be convenient to promote the use of.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional drawing of Fig. 1.
In figure: 1, upper shed valve bonnet, 2, upper centralizer, 3, upper center tube, 4, upper seal section, 5, upper traveling valve cage, 6, upper travelling valve ball, 7, upper travelling valve seat, 8, connecting sleeve, 8-1, discharge orifice, 9, adjusting nut, 10, lower center tube, 11, lower seal section, 12, lower travelling valve cover, 13, lower travelling valve ball, 14, lower travelling valve seat, 15, lower centralizer, 16, upper compensation cover, 17, stuffing box gland, 18, lower compensation cover, 19, piston ring, 20, pump barrel.
Embodiment
As shown in Figure 1 and Figure 2: the oil pump plunger piston of a kind of oil field plunger oil-well pump with twin-stage motive sealing, it comprises: upper shed valve bonnet 1, upper centralizer 2, center tube, seal section, upper traveling valve cage 5, lower travelling valve cover 12 and lower centralizer 15.Travelling valve ball 6 and upper travelling valve seat 7 is installed in described upper traveling valve cage 5.In described lower travelling valve cover 12, lower travelling valve ball 13 and lower travelling valve seat 14 are installed.It is characterized in that: described oil pump plunger piston is divided into upper and lower two sections, upper and lower two sections of oil pump plunger pistons install the identical upper seal section 4 of two groups of structures and lower seal section 11 respectively, connect between upper and lower seal section 4,11 with connecting sleeve 8.Described center tube is also divided into upper center tube 3 and lower center tube 10 two sections; Upper and lower seal section 4,11 is by the upper compensation cover 16, stuffing box gland 17 and the lower compensation cover 18 that are sleeved on successively from top to bottom on upper and lower center tube 3,10 outer tube wall.Piston set ring 19 on described stuffing box gland 17 outer tube wall; Described piston ring 19 is steel annulus, cutting openings groove on the bus of annulus; Piston ring 19 has many, many piston ring 19 gapless arrangements successively.Cylindrical and pump barrel 20 endoporus of piston ring 19 are sealing surface.
The lower end of described upper center tube 3 is connected with upper traveling valve cage 5 by screw thread; The upper end of upper center tube 3 is connected and locks with upper centralizer 2 and upper shed valve bonnet 1 by screw thread respectively.
Described lower center tube 10 lower end is connected with lower travelling valve cover 12 by screw thread; Described lower travelling valve cover 12 is connected with lower centralizer 15 by screw thread.Lower center tube 10 upper end is connected with connecting sleeve 8 by screw thread; Described connecting sleeve 8 upper end is connected with upper traveling valve cage 5 by screw thread.
Arrange adjusting nut 9 between described lower seal section 11 and connecting sleeve 8, lower center tube 10 and connecting sleeve 8 are locked by described adjusting nut 9.
Described connecting sleeve 8 is the pipe with step, and the present embodiment is provided with three discharge orifice 8-1 at stage place, in three uniform peripheral wall being produced on connecting sleeve 8 of discharge orifice 8-1.The quantity of conversion discharge orifice 8-1 is still within technological scheme disclosed in the present application.
The present embodiment working procedure is as follows:
Because oil pump plunger piston is divided into upper and lower two sections, two sections of plungers install two groups of motive sealing plunger assemblies respectively, often organize motive sealing plunger assembly bottom and be all provided with unidirectional traveling valve, connected by connecting sleeve 8 between two groups of motive sealing plunger assemblies, connecting sleeve 8 is arranged discharge orifice 8-1.
Under two groups of motive sealing plunger assemblies are fine status, when plunger is moved to top dead center by lower dead center, only have the motive sealing plunger assembly work on top, lower seal assembly only plays leading role.When plunger is moved to lower dead center by top dead center, upper and lower valve ball is opened liquid simultaneously.
If when the situation of leakage or inefficacy appears in upper travelling valve ball 6, upper travelling valve seat 7, when plunger is moved to top dead center by lower dead center, lower motive sealing plunger assembly is by commutation connecting sleeve 8 inner flow passage pressurization startup work, and upper black box only plays leading role.When plunger is moved to lower dead center by top dead center, upper and lower travelling valve ball 6,13 opened liquid simultaneously.
If when the situation of leakage or inefficacy appears in upper seal section, when plunger is moved to top dead center by lower dead center, lower motive sealing plunger assembly is by connecting sleeve 8 outside discharge orifice 8-1 pressurization startup work, and upper black box only plays leading role.When plunger is moved to lower dead center by top dead center, upper and lower travelling valve ball 6,13 opened liquid simultaneously.Be equivalent to installation two oil pump plunger pistons of once going into the well, the work of two oil pump plunger piston interaction compensation, reach and extend oil well pump working life, reduced well, the effect of operations number of going into the well.
Claims (5)
1. the oil pump plunger piston of oil field plunger oil-well pump with twin-stage motive sealing, it comprises: upper shed valve bonnet (1), upper centralizer (2), center tube, seal section, upper traveling valve cage (5), lower travelling valve cover (12) and lower centralizer (15); Travelling valve ball (6) and upper travelling valve seat (7) is installed in described upper traveling valve cage (5); In described lower travelling valve cover (12), lower travelling valve ball (13) and lower travelling valve seat (14) are installed; It is characterized in that: described oil pump plunger piston is divided into upper and lower two sections, upper and lower two sections of oil pump plunger pistons install the identical upper seal section (4) of two groups of structures and lower seal section (11) respectively, connect between upper and lower seal section (4,11) with connecting sleeve (8); Described connecting sleeve (8) is the pipe with step, is provided with discharge orifice (8-1) at stage place; Described center tube is divided into upper center tube (3) and lower center tube (10) two sections; Upper and lower seal section (4,11) is by upper compensation cover (16) be sleeved on successively from top to bottom on upper and lower center tube (3,10) outer tube wall, stuffing box gland (17) and lower compensation cover (18); Piston set ring (19) on described stuffing box gland (17) outer tube wall; Described piston ring (19) is steel annulus, cutting openings groove on the bus of annulus; Piston ring (19) has many, many piston ring (19) gapless arrangements successively; Cylindrical and pump barrel (20) endoporus of piston ring (19) are sealing surface.
2. the oil pump plunger piston of oil field according to claim 1 plunger oil-well pump with twin-stage motive sealing, is characterized in that: the lower end of described upper center tube (3) is connected with upper traveling valve cage (5) by screw thread; The upper end of upper center tube (3) is connected and locks with upper centralizer (2) and upper shed valve bonnet (1) by screw thread respectively.
3. the oil pump plunger piston of oil field according to claim 1 plunger oil-well pump with twin-stage motive sealing, is characterized in that: described lower center tube (10) lower end is connected with lower travelling valve cover (12) by screw thread; Described lower travelling valve cover (12) is connected with lower centralizer (15) by screw thread; Lower center tube (10) upper end is connected with connecting sleeve (8) by screw thread; Described connecting sleeve (8) upper end is connected with upper traveling valve cage (5) by screw thread.
4. the oil pump plunger piston of oil field plunger oil-well pump with twin-stage motive sealing according to claim 1 or 3, it is characterized in that: arrange adjusting nut (9) between described lower seal section (11) and connecting sleeve (8), lower center tube (10) and connecting sleeve (8) are locked by described adjusting nut (9).
5. the oil pump plunger piston of oil field according to claim 1 plunger oil-well pump with twin-stage motive sealing, it is characterized in that: described discharge orifice (8-1) has three, in three uniform peripheral wall being produced on connecting sleeve (8) of discharge orifice (8-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513983.4U CN204126880U (en) | 2014-09-05 | 2014-09-05 | The oil pump plunger piston of oil field plunger oil-well pump with twin-stage motive sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513983.4U CN204126880U (en) | 2014-09-05 | 2014-09-05 | The oil pump plunger piston of oil field plunger oil-well pump with twin-stage motive sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204126880U true CN204126880U (en) | 2015-01-28 |
Family
ID=52383242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420513983.4U Expired - Fee Related CN204126880U (en) | 2014-09-05 | 2014-09-05 | The oil pump plunger piston of oil field plunger oil-well pump with twin-stage motive sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204126880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235005A (en) * | 2014-09-05 | 2014-12-24 | 江苏宏业石油装备科技有限公司 | Two-stage dynamic seal oil well pump plunger used for oil field plunger oil well pump |
-
2014
- 2014-09-05 CN CN201420513983.4U patent/CN204126880U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235005A (en) * | 2014-09-05 | 2014-12-24 | 江苏宏业石油装备科技有限公司 | Two-stage dynamic seal oil well pump plunger used for oil field plunger oil well pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206129183U (en) | Spin formula sucker rod centralizer structure | |
| CN204126880U (en) | The oil pump plunger piston of oil field plunger oil-well pump with twin-stage motive sealing | |
| CN203362142U (en) | Actuating and differential pressure type fracturing sliding sleeve | |
| CN103437984B (en) | Multi-functional solid plunger tubing pump | |
| CN202483854U (en) | Efficient oil well pump with variable diameter | |
| CN102425396B (en) | A kind of sucker-rod pump oil extraction system for oil well | |
| CN104235005A (en) | Two-stage dynamic seal oil well pump plunger used for oil field plunger oil well pump | |
| CN209875142U (en) | Oil-water separation system under pumping and production-injection integrated pump well | |
| CN201184171Y (en) | Bias-wearing-proof pumping unit | |
| CN104196714B (en) | Oil field plunger oil-well pump Dynamic Seal combination plunger assembly | |
| CN210768705U (en) | Blowout prevention wellhead Christmas tree device | |
| CN208364108U (en) | A kind of downhole oil-gas separation device | |
| CN201679699U (en) | Oil-well pump of four-proofing deep well | |
| CN202500751U (en) | Tertiary oil recovery oil well pump | |
| CN204041435U (en) | Oil field plunger oil-well pump Dynamic Seal combination plunger assembly | |
| CN204941896U (en) | A kind of high pressure reciprocating pump fluid end structure | |
| CN205618340U (en) | Two effect oil -well pumps that no pole recovered oil and uses | |
| CN202203103U (en) | Novel device for preventing pump from being blocked by grit | |
| CN105625973A (en) | Wellhead oil extraction sealing device | |
| CN201368011Y (en) | Long plunger type anti-sand oil well pump | |
| CN204344037U (en) | Bailing device for horizontal well | |
| CN103883503B (en) | A kind of annular plunger small displacement rod-type pumping unit | |
| CN213087947U (en) | Wellhead metal sealing device | |
| CN202645951U (en) | Energy-saving rod-type deep well oil pump | |
| CN202468245U (en) | Sand-proof oil well pump |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20160905 |