Pumping unit wellhead polished rod sealer
A technology for pumping wells and sealers, which is used in sealing/isolation, wellbore/well components, and earth-moving drilling, etc., can solve the problems of high temperature carbonization of sealing packing, loss of sealing performance, and reduction of sealing effect, etc. Delivers comprehensive, extended service life, and firm contact
Active Publication Date: 2018-08-17
JINGZHOU GAOXIN PETROLEUM VALVE MEMBER
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This kind of sealing method often causes a large amount of heat to accumulate on the polished rod between the sealing packing and the polished rod. The high temperature generated by the non-stop reciprocating movement can cause high-temperature carbonization of the sealing packing, thereby reducing the sealing effect or completely losing the sealing performance. To ensure effective sealing, the sealing packing has to be replaced frequently; and if the replacement is not timely, it will easily lead to oil and gas leakage, resulting in energy loss and environmental pollution
During the process of replacing the sealing packing, the polished rod must stop working, which is labor-intensive and time-consuming
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0028] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.
[0029] Such as Figure 1-2 As shown, the present invention provides a sealer for the wellhead polished rod 1 of the pumping unit, which is sleeved on the polished rod 1, including:
[0030] Cooling assembly 2, which includes a water tank 20, the water tank 20 is sleeved on the outer side of the upper part of the polished rod 1, and the bottom center of the water tank 20 is provided with a depression, and the water tank 20 is provided with a water inlet 21 and a water outlet 22 ;
[0031] The working seal assembly 3 includes a first packing seal box 30 that is threadedly connect...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an oil pumping unit wellhead polished rod sealer which is arranged on a polished rod in a sleeving mode. The oil pumping unit wellhead polished rod sealer comprises a cooling assembly, an operating sealing assembly, a standby sealing assembly and an adjusting assembly. The cooling assembly comprises a water tank, a water inlet and a water outlet, wherein a plurality of baffles are arranged in the water tank at intervals in the water flowing direction so that a water channel in the water tank can be in an S shape. The operating sealing assembly comprises a first packing sealing box, a first spring gland, a first spring, a first kidney drum packing and a first cone packing. The standby sealing assembly comprises a second packing sealing box, a second spring gland, a second spring, a second kidney drum packing and a second cone packing. The adjusting assembly comprises a flange plate, a nut, an eccentric connector and a flange sealing ring. The oil pumping unit wellhead polished rod sealer has the beneficial effects that offset adjustment is carried out on the polished rod through the adjusting assembly, the water tank is spirally connected with the first packing sealing box while playing a role in cooling the polished rod to a certain extent, the structure is compact, usage is convenient, the utilization efficiency of cold water is increased through arrangement of the baffles, and meanwhile the polished rod does not stop operating during packing replacement.
Description
technical field [0001] The invention relates to a polished rod sealer. More specifically, the present invention relates to a wellhead polished rod sealer for a pumping unit. Background technique [0002] In addition to self-flowing wells, most of the oil production in oil fields requires the use of reciprocating pumping units. When the reciprocating pumping unit is working, the connection between the rope hanger and the sucker rod string is realized through the polished rod, which drives the oil pump piston to reciprocate, and the high pressure generated pumps the oil to the ground, and the oil is transported to the gathering station through the pipeline. [0003] During the reciprocating movement of the polished rod, there is a sliding fit with the wellhead device. If there is a gap in the working process of the sliding mating surface, the oil with pressure will leak out through the gap of the mating surface, causing environmental pollution and oil waste. Therefore, it i...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/03
CPCE21B33/03
Inventor 高忠平李高翔高舒雅董小庆
Owner JINGZHOU GAOXIN PETROLEUM VALVE MEMBER