CN217712480U - Oil extraction oil outlet fixing device for pipeless pump - Google Patents
Oil extraction oil outlet fixing device for pipeless pump Download PDFInfo
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- CN217712480U CN217712480U CN202221346400.4U CN202221346400U CN217712480U CN 217712480 U CN217712480 U CN 217712480U CN 202221346400 U CN202221346400 U CN 202221346400U CN 217712480 U CN217712480 U CN 217712480U
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Abstract
The utility model belongs to the technical field of oil development, a oil recovery oil-out solid device for no tubular pump is related to. Comprises a hollow polish rod, a small sleeve, a valve ball, a wellhead packing, a lower packing, a seal pipe outer sleeve and a polish rod seal cover. The hollow polish rod is inserted into the small sleeve, the valve ball is arranged on a valve ball seat at the bottom of the hollow polish rod, a wellhead packing, a sealing pipe outer sleeve and a lower packing are sequentially sleeved on the upper portion of the hollow polish rod from top to bottom, a polish rod sealing cover is arranged at the top of the hollow polish rod, an oil outlet is formed in the pipe wall of the hollow polish rod, an oil outlet of the sealing pipe outer sleeve is formed in the sealing pipe outer sleeve, and the oil outlet of the sealing pipe outer sleeve is communicated with an oil tank through an oil outlet hard pipeline. The device can realize the fixation of the oil extraction and oil outlet of the pipeless pump by only adding the annular pipe and the corresponding sealing element at the oil extraction and oil outlet of the pipeless pump, and well solves a plurality of problems of the pipeless pump oil extraction and oil outlet in the conventional production. The region range that makes no tubular pump oil recovery technique can be suitable for is wider, and the live time is longer.
Description
Technical Field
The utility model belongs to the technical field of oil development, particularly, relate to an oil recovery oil-out fixing device for no tubular pump.
Background
In order to reduce the production cost, the oil production of a single well is generally below 0.5m3/d, a larger casing (the inner diameter is 100-128 mm) with an oil pipe with the inner diameter of 62mm or 73mm is adopted for well completion, and an oil pumping machine and a pipeless pump are adopted for matched oil pumping (the lower part of a lower hollow sucker rod in the oil pipe with the inner diameter of 62mm or 73mm is connected with the pipeless oil pumping machine, the oil pumping machine drives the hollow rod to move up and down, and the produced crude oil flows to the ground from the annular space in the hollow rod). According to statistics, the production cost of the technology without the tubing pump is reduced by 30-50% compared with that of the conventional well completion (namely the inner diameter of a casing is 100-128 mm) and the tubing pump (namely, an oil tube with the inner diameter of 62mm is arranged in a larger casing, an oil pump is connected to the lower part of the oil tube, an oil rod is arranged in the oil tube, a valve ball plunger is arranged in the tubing pump, the oil rod is driven by the oil pumping unit to move up and down, and the produced crude oil flows to the ground from the annular space of the oil tube and the oil rod). The structure schematic diagram of an existing oil production system without a pipe pump is shown in fig. 1, wherein in fig. 1, 1 is an oil layer, 2 is a small casing, 3 is a valve ball seat, 4 is a valve ball, 5 is a hollow sucker rod, 6 is a wellhead packing, 7 is a hollow polished rod, 8 is a polished rod oil outlet, 9 is an oil outlet hose, and 10 is an oil tank. The pipeless pump has simple process, shortens the maintenance operation time (only a hollow sucker rod is taken out from a shaft and is provided with a special oil well pump) by 50 percent compared with a pipeless pump (an oil pipe and a sucker rod need to be taken out), but has the following two problems when the pipeless pump with the inner diameter of 62mm or 73mm is adopted for mining: firstly, the oil outlet is not fixed, the oil outlet at the top of the connecting hollow polished rod (the hollow pumping rod is exposed out of the ground and is connected with the oil pumping unit) and the oil tank are connected by a hose, the hollow polished rod continuously moves up and down by 0.8-1.5 m along with the up and down lifting of the oil pumping unit, the operation is better in summer, and the hose for connection is easy to harden and break when the temperature drops in winter; secondly, the up-and-down movement of the oil outlet hose is unfavorable for the safety production. Both of these reasons limit the application of pipeless pump technology. In the prior art, measures are taken to solve the problems that firstly, the production is not carried out in winter; secondly, the material of the oil outlet hose is modified to adapt to special climate; thirdly, performing electric heat preservation on the oil outlet hose; and fourthly, the oil outlet hose is prevented from hurting people and livestock, and the periphery is sealed. Production accidents often occur.
Disclosure of Invention
The utility model aims at providing an oil recovery oil-out fixing device for no tubular pump improves existing no tubular pump oil-out structure, through increasing an empty pipe of ring and corresponding sealing member, has solved the fixed problem of no tubular pump oil recovery oil-out.
In an embodiment of the utility model, the oil extraction oil outlet fixing device for the pipeless pump comprises a hollow polish rod, a small sleeve, a valve ball, a wellhead packing, a lower packing, a sealing pipe outer sleeve and a polish rod sealing cover; the hollow polished rod is inserted into the small sleeve; the valve ball is arranged on the valve ball seat at the bottom of the hollow polished rod; the wellhead packing, the sealing pipe outer sleeve and the lower packing are sequentially sleeved on the upper part of the hollow polished rod from top to bottom; the polish rod sealing cover is arranged at the top of the hollow polish rod; an oil outlet is formed in the tube wall of the hollow polished rod, a sealing tube outer sleeve oil outlet is formed in the sealing tube outer sleeve, and the sealing tube outer sleeve oil outlet is communicated with an oil tank through an oil outlet hard pipeline.
The utility model provides an oil recovery oil-out fixing device for no tubular pump, its advantage:
utilize the utility model provides a no tubular pump's oil recovery oil-out fixing device as long as increase an annular tube and corresponding sealing member at the oil recovery oil-out of no tubular pump, just can realize the fixed of no tubular pump oil recovery oil-out, solve a great deal of problem that no tubular pump oil recovery oil-out exists in having conventional production well. And the oil recovery oil-out fixing device's processing technology is simple, and disposable equipment drops into very little, need not use other equipment, promotes this device about will supporting beam-pumping unit carries out. In the annex that oil recovery oil-out fixing device increased, the sealing member appears the loss of friction problem and judges very easily and in time change, has consequently guaranteed the continuation and the safety of oil recovery process, and the region scope that makes no tubular pump oil recovery technique can be suitable for is wider, and the time is longer.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is clear that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can also be derived from them without inventive effort.
FIG. 1 is a schematic diagram of a prior art pipeless pump-based oil production system.
Fig. 2 is a schematic structural diagram of an oil recovery and oil out fixing device for a pipeless pump according to an embodiment of the present invention.
In fig. 1 and 2, 1 is an oil layer, 2 is a small sleeve, 3 is a valve ball seat, 4 is a valve ball, 5 is a hollow sucker rod, 6 is a wellhead packing, 7 is a hollow polish rod, 8 is a polish rod oil outlet, 9 is an oil outlet hose, 10 is an oil tank, 11 is a lower packing, 12 is a seal pipe outer sleeve, 12.1 is a seal pipe outer sleeve oil outlet, 13 is an oil outlet, 14 is an oil outlet hard pipeline, and 15 is a polish rod seal cover.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
The oil extraction and oil outlet fixing device for the pipeless pump, which is provided in the embodiment of the utility model, has the structure shown in figure 2, comprises a hollow polish rod 7, a small sleeve 2, a valve ball 4, a wellhead packing 6, a lower packing 11, a seal pipe outer sleeve 12 and a polish rod sealing cover 15; the hollow polish rod 7 is inserted into the small casing 2; the valve ball 4 is arranged on the valve ball seat 3 at the bottom of the hollow polished rod 75; the wellhead packing 6, the sealing pipe outer sleeve 12 and the lower packing 11 are sequentially sleeved on the upper part of the hollow polished rod 7 from top to bottom; the polish rod sealing cover 15 is arranged at the top of the hollow polish rod 7; an oil outlet 13 is formed in the wall of the hollow polished rod 7, a sealing pipe outer sleeve oil outlet 12.1 is formed in the sealing pipe outer sleeve 12, and the sealing pipe outer sleeve oil outlet 12.1 is communicated with the oil tank 10 through an oil outlet hard pipeline 14.
The working principle and the production flow of the utility model are further explained by combining the drawings as follows:
as shown in fig. 2, the utility model discloses an oil recovery oil-out fixing device, its theory of operation is, a sealed tube overcoat 12 under well head packing 6, sealed tube overcoat 12 is opened there is sealed tube overcoat oil-out 12.1. The lower part of the sealing pipe outer sleeve 12 is provided with a lower packing 11, a hollow polish rod 7 with an oil outlet 13 is replaced between a wellhead packing 6 and the lower packing 11, so that when the hollow polish rod 7 moves up and down by 0.8-1.5 m, the oil outlet 13 of the hollow polish rod 7 is always kept between the wellhead packing 6 and the lower packing 11, and the oil outlet 8 at the top of the hollow polish rod 7 is blocked by a polish rod sealing cover 15, so that oil produced by the up-and-down movement of the hollow polish rod 7 can flow to the oil tank 10 through an oil outlet 12.1 of the sealing pipe outer sleeve through an oil outlet hard pipeline 14.
The utility model discloses an oil recovery oil-out fixing device, its assembling process is as follows:
firstly, the connection between the hollow polished rod 7 and the pumping unit is released, and the oil hose 9 is extracted; the wellhead packing 6 is discharged by a crane; lifting the hollow polished rod 7 by a crane (generally, the length of a single rod is 9 m); replacing a hollow polish rod 7 with an oil outlet 13; well connecting a wellhead packing 6, a sealing pipe outer sleeve 12 and a lower packing 11 on the ground, and lowering the well connected wellhead packing 6, the sealing pipe outer sleeve 12 and the lower packing 11 into the wellhead packing 6 from the top of the hollow polished rod 7 by using a tool running crane; connecting the pumping unit with the hollow polished rod 7; connecting an oil outlet hard pipeline 14 with a sealing pipe outer sleeve 12 and the oil tank 10; a polish rod sealing cover 15 blocks a polish rod oil outlet 8; finally, the pumping unit is started to produce.
Claims (1)
1. An oil extraction oil outlet fixing device for a pipeless pump comprises a hollow polish rod, a small sleeve, a valve ball and a wellhead packing, and is characterized by further comprising a lower packing, a sealing pipe outer sleeve and a polish rod sealing cover; the hollow polished rod is inserted into the small sleeve; the valve ball is arranged on the valve ball seat at the bottom of the hollow polished rod; the wellhead packing, the sealing pipe outer sleeve and the lower packing are sequentially sleeved on the upper part of the hollow polished rod from top to bottom; the polish rod sealing cover is arranged at the top of the hollow polish rod; an oil outlet is formed in the pipe wall of the hollow polished rod, a sealing pipe outer sleeve oil outlet is formed in the sealing pipe outer sleeve, and the sealing pipe outer sleeve oil outlet is communicated with an oil tank through an oil outlet hard pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221346400.4U CN217712480U (en) | 2022-05-31 | 2022-05-31 | Oil extraction oil outlet fixing device for pipeless pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221346400.4U CN217712480U (en) | 2022-05-31 | 2022-05-31 | Oil extraction oil outlet fixing device for pipeless pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217712480U true CN217712480U (en) | 2022-11-01 |
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ID=83797553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221346400.4U Active CN217712480U (en) | 2022-05-31 | 2022-05-31 | Oil extraction oil outlet fixing device for pipeless pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217712480U (en) |
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2022
- 2022-05-31 CN CN202221346400.4U patent/CN217712480U/en active Active
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