CN202866725U - Special unequal-diameter sealing device for intelligent intermittent bailing-type oil pumping unit - Google Patents
Special unequal-diameter sealing device for intelligent intermittent bailing-type oil pumping unit Download PDFInfo
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- CN202866725U CN202866725U CN 201220173953 CN201220173953U CN202866725U CN 202866725 U CN202866725 U CN 202866725U CN 201220173953 CN201220173953 CN 201220173953 CN 201220173953 U CN201220173953 U CN 201220173953U CN 202866725 U CN202866725 U CN 202866725U
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- oil
- box main
- steel pad
- diameter sealing
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Abstract
The utility model relates to a special unequal-diameter sealing device for an intelligent intermittent bailing-type oil pumping unit. The left end of a blowout control box main body is in threaded connection with a connector; the right end of the blowout control box main body is in threaded connection with an oil pipe connector; a cylindrical steel gasket and a grooved steel gasket with a boss are arranged in the blowout control box main body; four small-diameter sealing packings are placed in the steel gasket; the grooved steel gasket is pressed against the left end port of the cylindrical steel gasket; the boss of the grooved steel gasket is pressed at the left end parts of the four small-diameter sealing packings; a center hole of the small-diameter sealing packings is inserted with a flexible pumping rod; the blowout control box main body is provided with a screw hole; the head part of a cutting screw arranged on the screw hole is embedded in a groove on an outer peripheral ring of the grooved steel gasket; and a large-diameter sealing packing is placed in the oil pipe connector. The special unequal-diameter sealing device not only effectively solves the problem of preventing blowout of a wellhead when the oil pumping unit normally pumps oil, but also is added with a special structure, realizes blowout prevention when a barrel oil pump is replaced or an underground part is overhauled, and can avoid oil blowout.
Description
Technical field
The utility model belongs to the parts of petroleum machinery well mouth of oil well device, be particularly related to the not isometrical sealing device of a kind of Intelligent intermittent bailing formula oil pumper special use, the sealing of well head and a kind of special structure of blowout prevention when it can make Intelligent intermittent bailing formula oil pumper be implemented in normal oil pumping and the work of inspection-pit lower member.
Background technology
Intelligent intermittent bailing formula oil pumper is that the reel by oil pumper rotates and drives flexible rod and move up and down in oil pipe, thereby flexible rod drive barrel oil pump upwards lifting is promoted to crude oil aboveground, at the well head place sealing and blowout hookup are installed, are finished crude oil and flow to the aboveground production trunk line from oil pipe.Although the blowout prevention box in past also can play the blowout prevention effect, but when pumping unit use a period of time or because job execution, change barrel oil pump or when underground component overhauled, blowout prevention box originally need to all disassemble and underground component could be risen to outer wellhead and carry out operation, and the down-hole also can some crude oil be being followed and is being mentioned well head when upwards promoting, and in the situation of blowout prevention box under the dismounting, the well head place is easy to occur fuel injection event, cause easily accident, contaminated environment and waste resource.
The utility model content
The purpose of this utility model provides the not isometrical sealing device of a kind of Intelligent intermittent bailing formula oil pumper special use.On the basis of former blowout hookup, increase the sealing of different-diameter and the parts of blowout prevention, avoid the appearance of the accident such as well head oil spout, guaranteed that aboveground operation carries out smoothly.It is the sealing of a kind of Intelligent intermittent bailing formula oil pumper well head when being implemented in the work of normal oil pumping and inspection-pit lower member and a kind of special structure of blowout prevention.
Content of the present utility model:
The not isometrical sealing device of a kind of Intelligent intermittent bailing formula oil pumper special use, it is characterized in that: the blowout prevention box main body left end connector that is threaded, the blowout prevention box main body right-hand member oil connection that is threaded, tubular steel pad and the band channel-section steel pad that boss is arranged are housed in the blowout prevention box main body, be placed with four minor diameter sealed packings in the steel pad, band channel-section steel pad bears against on tubular steel pad left port, is squeezed in four minor diameter sealed packing left parts with the boss on the channel-section steel pad; Minor diameter sealed packing centre bore is installed with flexible rod, on the blowout prevention box main body screw is arranged, and is contained in shear screw head on the screw and is embedded in the groove with the outer border of channel-section steel pad; Be placed with the major diameter sealed packing in the oil connection.
The special use of this Intelligent intermittent bailing formula oil pumper is the characteristics of isometrical sealing device not:
This device is installed in upper end, well head oil recovery road by the oil connection of lower end, mainly realizes not isometrical sealing in following two kinds of situations:
When one, oil pumper is normally pumped, the oil pumper reel drive flexible rod move up and down crude oil is risen to aboveground, when crude oil is promoted on the well head oil recovery road, four minor diameter sealed packings by this device can stop crude oil to outward leakage and injection, crude oil is flowed in the aboveground production trunk line smoothly
Two, when overhauling when the replacing barrel oil pump or to underground component, these members uplift need to be carried out operation outside well, at first will this not the connector of isometrical sealing device pull down, then utilize the rotation of reel to drive upwards lifting of flexible rod, when barrel oil pump apart from well head after about 10 meters left and right sides degree of depth, progressively upwards promote by crawl control rods, after barrel oil pump pushes up the steel pad, because this moment, the down-hole had certain pressure, the steel pad passes to band channel-section steel pad with the barrel oil pump applied force, when suffered power acquires a certain degree, the shear screw head can be sheared fracture, thereby band channel-section steel pad, steel pad and four minor diameter sealed packings are ejected, and barrel oil pump continues to go upward to outer wellhead, until weighted lever is when rising to large sealed packing place, the major diameter sealed packing is inboard to form sealing with the weighted lever close contact, thereby stop downhole crude to outward leakage and injection, at this moment, replaceable barrel oil pump or underground component overhauled.
Description of drawings
The not isometrical sealing device overall structure of Fig. 1 Intelligent intermittent bailing formula oil pumper special use figure.
Among the figure: the 1-connector; The 2-shear screw; 3-band channel-section steel pad; 4-minor diameter sealed packing; 5-blowout prevention box main body; 6-steel pad; 7-major diameter sealed packing; The 8-oil connection; The 9-flexible rod
The specific embodiment
The not isometrical sealing device of Intelligent intermittent bailing formula oil pumper special use as shown in Figure 1, connector 1 is arranged, connector 1 is connected with blowout prevention box main body 5, there is band channel-section steel pad 3 connector 1 lower end, the boss of reserving with channel-section steel pad 3 removes to push four minor diameter sealed packings 4 that are placed in the steel pad 6, and steel pad 6 is placed in the blowout prevention box main body 5, and four minor diameter sealed packings 4 are when oil pumper is normally pumped and flexible rod 9 close contacts, stop leakage and the injection of crude oil, play sealing and blowout prevention effect; Shear screw 2 is passed blowout prevention box main body 5, shear screw 2 heads are set in the groove with channel-section steel pad 3, there is major diameter sealed packing 7 oil connection 8 inside, oil connection 8 upper ends are connected with blowout prevention box main body 5, the lower end connects the well recovery road on the well head, when changing barrel oil pump or inspection-pit lower member, at first pull down connector 1, because the effect of down-hole pressure, thereby shear screw 2 heads are sheared fracture in situation about all being ejected with channel-section steel pad 3, steel pad 6 and four minor diameter sealed packings 4, and major diameter sealed packing 7 forms sealing with the weighted lever close contact.
Claims (1)
1. the not isometrical sealing device of Intelligent intermittent bailing formula oil pumper special use, it is characterized in that: the blowout prevention box main body left end connector that is threaded, the blowout prevention box main body right-hand member oil connection that is threaded, tubular steel pad and the band channel-section steel pad that boss is arranged are housed in the blowout prevention box main body, be placed with four minor diameter sealed packings in the steel pad, band channel-section steel pad bears against on tubular steel pad left port, is squeezed in four minor diameter sealed packing left parts with the boss on the channel-section steel pad; Minor diameter sealed packing centre bore is installed with flexible rod, on the blowout prevention box main body screw is arranged, and is contained in shear screw head on the screw and is embedded in the groove with the outer border of channel-section steel pad; Be placed with the major diameter sealed packing in the oil connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173953 CN202866725U (en) | 2012-04-23 | 2012-04-23 | Special unequal-diameter sealing device for intelligent intermittent bailing-type oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173953 CN202866725U (en) | 2012-04-23 | 2012-04-23 | Special unequal-diameter sealing device for intelligent intermittent bailing-type oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866725U true CN202866725U (en) | 2013-04-10 |
Family
ID=48033451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220173953 Expired - Fee Related CN202866725U (en) | 2012-04-23 | 2012-04-23 | Special unequal-diameter sealing device for intelligent intermittent bailing-type oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814606A (en) * | 2021-03-29 | 2021-05-18 | 克拉玛依胜利高原机械有限公司 | Pressure lifting and releasing sucker rod string well repairing device and implementation process |
-
2012
- 2012-04-23 CN CN 201220173953 patent/CN202866725U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814606A (en) * | 2021-03-29 | 2021-05-18 | 克拉玛依胜利高原机械有限公司 | Pressure lifting and releasing sucker rod string well repairing device and implementation process |
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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: 20130410 Termination date: 20160423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |