CN203905907U - Hollow phase flow draining apparatus - Google Patents
Hollow phase flow draining apparatus Download PDFInfo
- Publication number
- CN203905907U CN203905907U CN201320601947.9U CN201320601947U CN203905907U CN 203905907 U CN203905907 U CN 203905907U CN 201320601947 U CN201320601947 U CN 201320601947U CN 203905907 U CN203905907 U CN 203905907U
- Authority
- CN
- China
- Prior art keywords
- piston
- hole
- steel ball
- seating nipple
- piston rod
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a hollow phase flow pipe draining apparatus and especially relates to a casing pipe oiling device. The hollow phase flow draining apparatus comprises a piston assembly, an oil charging valve assembly and a work cylinder, wherein the piston assembly is placed in the work cylinder; the oil charging valve assembly is fastened between the piston assembly and the work cylinder; the piston assembly is formed by a piston rod, a lower piston, a steel ball and a press plate; the lower end of the tubular piston rod is connected with the hollow piston; annular space is formed between the piston rod and the work cylinder; the external diameter of the lower piston is equal to the internal diameter of the work cylinder; a through hole communicating the annular space and the lower part space of the lower piston is formed in the lower piston; the steel ball is disposed in the through hole; the press plate containing a through hole is arranged over the steel ball; the oil charging valve assembly consists of an upper joint, a steel ball and a press plate; the tubular upper joint is provided with a vertical through hole communicating the annular space and space over the upper joint; the steel ball is disposed in the through hole; and the upper end of the through hole is provided with the press plate containing a through hole. The hollow phase flow draining apparatus is simply structured and liquid can be discharged via annular loop space between an oil pipe and a casing pipe.
Description
Technical field
The utility model relates to well recovery equipment, relates in particular to Casing for extracting oil device.
Background technology
Current, oil recovery technique adopts sucker rod pumping more, and this oil production method has device structure grasp directly perceived, simple to operate, easy, management and keeps in repair the advantages such as comprehensive.Sucker rod pumping is all in sleeve pipe, to be provided with oil pipe, exports oil to ground by oil pipe.This oil production method, in the time that examination is taken out, need to be in place oil pumper, and then the device such as lower sucker rod, tries to take out.But this oil production method complex procedures, it is large that workload is taken out in examination, and efficiency is slow, and cost is high.
Summary of the invention
The utility model is exactly the deficiency for above-mentioned technology, and a kind of new technical scheme is provided.The utility model is simple in structure, and equipment design concept is ingenious, and convenient operation can be discharged liquid phase substance by the ring set space between oil pipe and sleeve pipe.
The technical scheme that the utility model provides is:
Have and flow mutually hollow pumping equipment, comprise piston assembly, inlet valve assembly, seating nipple; Piston assembly is positioned at seating nipple, is fixedly installed inlet valve assembly between piston assembly and seating nipple; Described piston assembly comprises piston rod, lower piston, steel ball, pressing plate, tubular piston bar lower end connects the lower piston of hollow, between piston rod and seating nipple, form annulus, lower piston external diameter equates with seating nipple internal diameter, lower piston is provided with through hole and is communicated with annulus and lower piston lower space, in through hole, be provided with steel ball, steel ball top is provided with the pressing plate of through hole; Inlet valve assembly comprises top connection, steel ball, pressing plate, and the through hole that tubulose top connection is provided with above-below direction is communicated with annulus and top connection superjacent air space, and steel ball is set in through hole, and through hole upper end is provided with the pressing plate of through hole.
Concrete, seating nipple lower end connects lower contact.
Preferably, lower contact lower end is connected with packer.
Preferably, lower contact lower end is connected with packer by oil pipe.
Concrete, piston rod upper end connects connector.
Concrete, piston rod is connected and fixed by screw thread and lower piston.
Concrete, between lower piston and seating nipple, be provided with sealing ring.
Concrete, top connection, between piston rod and seating nipple, is provided with sealing ring between top connection and piston rod.
Advantage technology effect of the present utility model is:
1, realized hollow discharge opeing.This device has changed the pump structure of all kinds oil pumping in the past, and piston assembly inside is hollow channel, can not meet pump operation, can realize downhole testing, discharge opeing.
2, when examination is taken out, be lowered in advance this device, utilize workover rig can try to take out.Change former installation oil pumper and tried the mode of taking out.Removed installation oil pumper from, the operations such as lower sucker rod, have improved operating efficiency greatly, have saved operating cost.
3, supporting with minor diameter tubing, now little oil pipe is equivalent to the sucker rod of common oil well, does not need to play oil pipe and common sucker rod again, realizes Casing for extracting oil technology.Eliminate the problem such as sucker rod partial wear in the past, and greatly saved individual well Master Cost and operating cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
1 packer 2 oil pipe 3 lower contact 4 pump line 5 screw 6 steel balls
7 pressing plate 8 lower piston 9 sealing ring 10 piston rod 11 connector 12 top connections
13 steel ball 14 pressing plates.
Detailed description of the invention
As shown in the figure, have and flow mutually hollow pumping equipment, mainly comprise piston assembly, inlet valve assembly, seating nipple.Piston assembly is positioned at seating nipple, is fixedly installed inlet valve assembly between piston assembly and seating nipple.Described piston assembly comprises piston rod, lower piston, steel ball, pressing plate.Tubular piston bar lower end is threaded connection the lower piston of hollow, and piston rod upper end connects connector.Can connected pipes on connector.Between piston rod and seating nipple, form annulus.Lower piston external diameter equates with seating nipple internal diameter, between lower piston and seating nipple, is provided with sealing ring.Lower piston is provided with through hole and is communicated with annulus and lower piston lower space.In through hole, be provided with steel ball, steel ball top be fixedly installed pressing plate on lower piston by screw.Inlet valve assembly comprises top connection, steel ball, pressing plate, and the through hole that tubulose top connection is provided with above-below direction is communicated with annulus and top connection superjacent air space, and steel ball is set in through hole, and through hole upper end is provided with pressing plate.Top connection, between piston rod and seating nipple, is provided with sealing ring between top connection and piston rod.On described pressing plate, be provided with upper and lower penetrating hole.
Seating nipple lower end connects lower contact.Lower contact lower end is connected with packer by oil pipe.Packer prevents that the liquid that enters sleeve pipe from falling.
The utility model lower end arranges packer, is fixed on sleeve pipe design attitude in advance.Piston rod top is connected with oil pipe by connector, and oil pipe quantity is determined according to level.Detection instrument can be through arriving liquid level position under piston rod.
When examination is taken out, in the time that oil pipe drives piston rod to move downward, in seating nipple, spatial volume increases, and pressure reduces, and the through-hole passage on lower piston is opened, and down-hole fluid enters into seating nipple and piston rod annulus.In the time that oil pipe drives piston rod to move upward, in seating nipple, spatial volume reduces, and pressure increases, and the through-hole passage on lower piston is closed, and the through-hole passage in top connection is opened, and fluid enters into sleeve pipe; Motion realizes the row of adopting so repeatedly.
Finally explanation: above embodiment is only unrestricted in order to the technical solution of the utility model to be described; Although the utility model is had been described in detail with reference to preferred embodiment, other amendments that those of ordinary skill in the art make the technical solution of the utility model or be equal to replacement, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of claim scope of the present utility model.
Claims (8)
1. have and flow mutually hollow pumping equipment, it is characterized in that, comprise piston assembly, inlet valve assembly, seating nipple; Piston assembly is positioned at seating nipple, is fixedly installed inlet valve assembly between piston assembly and seating nipple; Described piston assembly comprises piston rod, lower piston, steel ball, pressing plate, tubular piston bar lower end connects the lower piston of hollow, between piston rod and seating nipple, form annulus, lower piston external diameter equates with seating nipple internal diameter, lower piston is provided with through hole and is communicated with annulus and lower piston lower space, in through hole, be provided with steel ball, steel ball top is provided with the pressing plate of through hole; Inlet valve assembly comprises top connection, steel ball, pressing plate, and the through hole that tubulose top connection is provided with above-below direction is communicated with annulus and top connection superjacent air space, and steel ball is set in through hole, and through hole upper end is provided with the pressing plate of through hole.
2. have according to claim 1 and flow mutually hollow pumping equipment, it is characterized in that, seating nipple lower end connects lower contact.
3. have according to claim 2 and flow mutually hollow pumping equipment, it is characterized in that, lower contact lower end is connected with packer.
4. have according to claim 3 and flow mutually hollow pumping equipment, it is characterized in that, lower contact lower end is connected with packer by oil pipe.
5. have according to claim 1 and flow mutually hollow pumping equipment, it is characterized in that, piston rod upper end connects connector.
6. have according to claim 1 and flow mutually hollow pumping equipment, it is characterized in that, piston rod is connected and fixed by screw thread and lower piston.
7. have according to claim 1 and flow mutually hollow pumping equipment, it is characterized in that, between lower piston and seating nipple, be provided with sealing ring.
8. have according to claim 1 and flow mutually hollow pumping equipment, it is characterized in that, top connection, between piston rod and seating nipple, is provided with sealing ring between top connection and piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320601947.9U CN203905907U (en) | 2013-09-27 | 2013-09-27 | Hollow phase flow draining apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320601947.9U CN203905907U (en) | 2013-09-27 | 2013-09-27 | Hollow phase flow draining apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905907U true CN203905907U (en) | 2014-10-29 |
Family
ID=51780196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320601947.9U Withdrawn - After Issue CN203905907U (en) | 2013-09-27 | 2013-09-27 | Hollow phase flow draining apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510921A (en) * | 2013-09-27 | 2014-01-15 | 王依明 | Phase-flow hollow draining device |
-
2013
- 2013-09-27 CN CN201320601947.9U patent/CN203905907U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510921A (en) * | 2013-09-27 | 2014-01-15 | 王依明 | Phase-flow hollow draining device |
| CN103510921B (en) * | 2013-09-27 | 2016-01-13 | 濮阳市元亨利通石油机械有限公司 | Have and flow hollow pumping equipment mutually |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |