CN103510921A - Phase-flow hollow draining device - Google Patents

Phase-flow hollow draining device Download PDF

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Publication number
CN103510921A
CN103510921A CN201310449174.1A CN201310449174A CN103510921A CN 103510921 A CN103510921 A CN 103510921A CN 201310449174 A CN201310449174 A CN 201310449174A CN 103510921 A CN103510921 A CN 103510921A
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CN
China
Prior art keywords
piston
hole
steel ball
seating nipple
pressing plate
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Granted
Application number
CN201310449174.1A
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Chinese (zh)
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CN103510921B (en
Inventor
王依明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PUYANG YUANHENG LITONG PETROLEUM MACHINERY CO., LTD.
Original Assignee
王依明
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Priority to CN201310449174.1A priority Critical patent/CN103510921B/en
Publication of CN103510921A publication Critical patent/CN103510921A/en
Application granted granted Critical
Publication of CN103510921B publication Critical patent/CN103510921B/en
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Anticipated expiration legal-status Critical

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Abstract

The invention relates to oil well oil extraction equipment, in particular to a sleeve oil extraction device. A phase-flow hollow draining device comprises a piston assembly, an oil inlet valve assembly and a working cylinder. The piston assembly is located in the working cylinder, and the oil inlet valve assembly is fixedly arranged between the piston assembly and the working cylinder. The piston assembly comprises a piston rod, a lower piston, a steel ball and a pressing plate, the lower end of the tubular piston rod is connected with the hollow lower piston, an annular space is formed between the piston rod and the working cylinder, the external diameter of the lower piston is equal to the internal diameter of the working cylinder, a through hole through which the annular space is communicated with the lower space of the lower piston is formed in the lower piston, the steel ball is arranged inside the through hole, and the pressing plate with a through hole is arranged above the steel ball. The oil inlet valve assembly comprises an upper connector, a steel ball and a pressing plate, the tubular upper connector is provided with a vertical through hole through which the annular space is communicated with the space above the upper connector, the steel ball is arranged inside the through hole, and the upper end of the through hole is provided with the pressing plate with the through hole. The phase-flow hollow draining device is simple in structure, and liquid can be drained through the annular space between an oil pipe and a sleeve.

Description

Have and flow mutually hollow pumping equipment
Technical field
The present invention relates to well recovery equipment, relate 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, by oil pipe, exports oil to ground.This oil production method, when 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 present invention is exactly the deficiency for above-mentioned technology, and a kind of new technical scheme is provided.The present invention 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.
Technical scheme provided by the invention 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 the pressing plate that steel ball through hole upper end is provided with through hole is set in 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 invention 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.
When 2, examination is taken out, be lowered in advance this device, utilize workover rig can try to take out.Changed the mode that former installation oil pumper examination is taken 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.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
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.
The specific embodiment
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 by screw, be fixedly installed pressing plate on lower piston.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.
Lower end of the present invention 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, when 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.When 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 technical scheme of the present invention to be described; Although the present invention is had been described in detail with reference to preferred embodiment, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.

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 the pressing plate that steel ball through hole upper end is provided with through hole is set in 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.
CN201310449174.1A 2013-09-27 2013-09-27 Have and flow hollow pumping equipment mutually Active CN103510921B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310449174.1A CN103510921B (en) 2013-09-27 2013-09-27 Have and flow hollow pumping equipment mutually

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310449174.1A CN103510921B (en) 2013-09-27 2013-09-27 Have and flow hollow pumping equipment mutually

Publications (2)

Publication Number Publication Date
CN103510921A true CN103510921A (en) 2014-01-15
CN103510921B CN103510921B (en) 2016-01-13

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CN201310449174.1A Active CN103510921B (en) 2013-09-27 2013-09-27 Have and flow hollow pumping equipment mutually

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105386743A (en) * 2015-12-10 2016-03-09 陕西华晨石油科技有限公司 Swabbing device for well logging of rod pumped well and well logging method based on device
CN105909503A (en) * 2016-05-31 2016-08-31 托普威尔石油技术股份公司 Downhole hollow oil well pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470775A (en) * 1982-09-01 1984-09-11 Lonardo Vincent P Submersible deep well pump
CN2489114Y (en) * 2001-08-03 2002-05-01 周小稀 Oil pipe pumping type well pump
CN1667273A (en) * 2004-03-13 2005-09-14 于海涛 Hollow oil-well pump
CN201763581U (en) * 2010-04-29 2011-03-16 中国石油化工集团公司 Hollow-plunger pump
WO2011069517A1 (en) * 2009-12-07 2011-06-16 Montanuniversität Leoben Pump system
CN203189250U (en) * 2013-04-11 2013-09-11 中国石油化工股份有限公司 Hollow rod oil well pump in well
CN203905907U (en) * 2013-09-27 2014-10-29 濮阳市元亨利通石油机械有限公司 Hollow phase flow draining apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470775A (en) * 1982-09-01 1984-09-11 Lonardo Vincent P Submersible deep well pump
CN2489114Y (en) * 2001-08-03 2002-05-01 周小稀 Oil pipe pumping type well pump
CN1667273A (en) * 2004-03-13 2005-09-14 于海涛 Hollow oil-well pump
WO2011069517A1 (en) * 2009-12-07 2011-06-16 Montanuniversität Leoben Pump system
CN201763581U (en) * 2010-04-29 2011-03-16 中国石油化工集团公司 Hollow-plunger pump
CN203189250U (en) * 2013-04-11 2013-09-11 中国石油化工股份有限公司 Hollow rod oil well pump in well
CN203905907U (en) * 2013-09-27 2014-10-29 濮阳市元亨利通石油机械有限公司 Hollow phase flow draining apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
魏新春: "一体式空心抽油杆采油技术研究", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》, no. 2, 15 June 2005 (2005-06-15), pages 6 - 34 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105386743A (en) * 2015-12-10 2016-03-09 陕西华晨石油科技有限公司 Swabbing device for well logging of rod pumped well and well logging method based on device
CN105909503A (en) * 2016-05-31 2016-08-31 托普威尔石油技术股份公司 Downhole hollow oil well pump

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Effective date of registration: 20140506

Address after: 457001 Dongpu industrial agglomeration area, Henan, Puyang

Applicant after: PUYANG YUANHENG LITONG PETROLEUM MACHINERY CO., LTD.

Address before: 457001 North Road, Sinopec East Road, Henan, Puyang

Applicant before: Wang Yiming

C41 Transfer of patent application or patent right or utility model
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Owner name: PUYANG YUANHENG LITONG PETROLEUM MACHINERY CO., LT

Free format text: FORMER OWNER: WANG YIMING

Effective date: 20140506

GR01 Patent grant
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