CN201705632U - Rodless hydraulic deep oil well pump - Google Patents

Rodless hydraulic deep oil well pump Download PDF

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Publication number
CN201705632U
CN201705632U CN2010202188578U CN201020218857U CN201705632U CN 201705632 U CN201705632 U CN 201705632U CN 2010202188578 U CN2010202188578 U CN 2010202188578U CN 201020218857 U CN201020218857 U CN 201020218857U CN 201705632 U CN201705632 U CN 201705632U
Authority
CN
China
Prior art keywords
joint
spring
cylinder barrel
push rod
water nozzle
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.)
Expired - Fee Related
Application number
CN2010202188578U
Other languages
Chinese (zh)
Inventor
林涛
李子甲
邓洪军
张志宏
刘榧
张建军
王永康
吴臣德
柏森
张园
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China Petroleum and Chemical Corp
Original Assignee
China Petroleum and Chemical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp filed Critical China Petroleum and Chemical Corp
Priority to CN2010202188578U priority Critical patent/CN201705632U/en
Application granted granted Critical
Publication of CN201705632U publication Critical patent/CN201705632U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a rodless hydraulic deep oil well pump, which belongs to the technical field of oil recovery equipment, solves the problems of large stroke loss of sucker-rod pumps, serious eccentric wear of rod pipes and polish rod sealer leakage, and comprises a pump body and a piston, wherein the pump body consists of a front and a back cycle structures, the piston is formed by connecting an upper piston, a reversing ball valve, a valve bonnet, a push rod, a movable pin and a long piston from up and down in series, and the push rod and the movable pin are connected with the reversing ball valve through a lower reversing spring. The utility model has simple structure, lower requirements on dynamic liquid, lower operational cost, longer service life of reversing valves, and higher pump efficiency and reliability.

Description

Rodless hydraulic deep-well oil pump
One, technical field the utility model belongs to the equipment technical field of oil recovery, particularly relates to a kind of Rodless hydraulic extracting device of oil.
Two, rod recovering system is arranged is present the most frequently used oil production method to background technique, but along with the middle and later periods exploitation in oil field, liquid level constantly descends, pump is hung also and constantly deepened, and has also brought the problem of the increase of pumping unit load, loss of plunger stroke, rod and tube partial-wear thereupon.Usually because the well temperature is higher, the heat radiation of electric pump unit is insufficient for electric submersible pump rodless pumping operation technology, and working life is short; Though the hole condition of the most suitable deep-well of hydraulic piston pump, high temperature, and pump efficiency height, it requires very high to power fluid, and stroke is short, jig frequency is high, has also just shortened the working life of pump; Gaslift technology exists the problem that high-pressure air source lacks and cost is higher, efficient is lower in system in Tahe Oilfield.System in Tahe Oilfield have bury dark, formation temperature is high, salinity is high, H 2S content height, ground viscosity of crude height, the feature that density is big, anisotropy is strong, the part oil well pump setting depth that overstepped the extreme limit.
Three, the summary of the invention the purpose of this utility model provides a kind of Rodless hydraulic deep-well oil pump, it is big to have solved the rod pump loss of plunger stroke, the problem that rod and tube partial-wear is serious and polished rod sealer leaks, it comprises the pump housing and piston, the pump housing is by just, anti-two kinds of loop structures are formed, pump housing direct circulation structure comprises sub-coupling, the feed liquor screen casing, screen joint, the separatory joint, upper exterior tube, last cylinder barrel, strut, last commutation spring, the spring supporting positive cover, the throttling water nozzle, the water nozzle cap, push rod, under the spring that commutates, liquid inlet joint, following cylinder barrel, box cupling, lower outer pipe, fuel-displaced bridge-type joint, the outlet valve assembly, bottom sub-coupling and standing valve assembly, sub-coupling, the separatory joint, upper exterior tube, liquid inlet joint, box cupling, lower outer pipe, fuel-displaced bridge-type joint, bottom sub-coupling and standing valve assembly are connected from top to bottom, feed liquor screen casing and screen joint are arranged on separatory joint top, strut, last commutation spring, the spring supporting positive cover, the throttling water nozzle, water nozzle cap and push rod are connected from top to bottom, last cylinder barrel and following cylinder barrel respectively with liquid inlet joint on, following two ends connect; The anti-loop structure of the pump housing comprises sub-coupling, oil-release valve cover, fuel-displaced ball valve, the separatory joint, upper exterior tube, last cylinder barrel, strut, last commutation spring, the spring supporting positive cover, the throttling water nozzle, the water nozzle cap, push rod, under the spring that commutates, the bridge-type joint, following cylinder barrel, the feed liquor screen casing, lower outer pipe, box cupling and standing valve assembly, sub-coupling, the separatory joint, upper exterior tube, the feed liquor screen casing, lower outer pipe, box cupling and standing valve assembly are connected from top to bottom, oil-release valve cover and fuel-displaced ball valve are arranged on separatory joint top, strut, last commutation spring, the spring supporting positive cover, the throttling water nozzle, water nozzle cap and push rod are connected from top to bottom, last cylinder barrel and following cylinder barrel respectively with the bridge-type joint on, following two ends connect; Piston is in series from top to bottom by upper piston, commutation ball valve, valve bonnet, push rod, movable pin, long-term job plug, push rod and movable pin by under commutate spring with the commutation ball valve join, the utility model is simple in structure, requirement to power fluid is lower, operating cost is lower, prolong the life-span of selector valve, had higher pump efficiency and reliability.
Four, description of drawings Fig. 1 is the utility model pump housing direct circulation structural representation;
Fig. 2 is the anti-loop structure schematic representation of the utility model pump housing;
Fig. 3 is the utility model piston structure schematic representation.
Five, embodiment is below in conjunction with Fig. 1, Fig. 2 and Fig. 3 are described further the utility model Rodless hydraulic deep-well oil pump, it comprises the pump housing and piston, the pump housing is by just, anti-two kinds of loop structures are formed, the direct circulation structure comprises sub-coupling 1, feed liquor screen casing 20, screen joint 21, separatory joint 4, upper exterior tube 5, last cylinder barrel 6, strut 7, last commutation spring 8, spring supporting positive cover 9, throttling water nozzle 10, water nozzle cap 11, push rod 12, under the spring 13 that commutates, liquid inlet joint 22, following cylinder barrel 15, box cupling 23, lower outer pipe 17, fuel-displaced bridge-type joint 24, outlet valve assembly 25, bottom sub-coupling 26 and standing valve assembly 19, sub-coupling 1, separatory joint 4, upper exterior tube 5, liquid inlet joint 22, box cupling 23, lower outer pipe 17, fuel-displaced bridge-type joint 24, bottom sub-coupling 26 and standing valve assembly 19 are composed in series pump housing shell from top to bottom, wherein, feed liquor screen casing 20 and screen joint 21 numerals are above separatory joint 4, strut 7, last commutation spring 8, spring supporting positive cover 9, throttling water nozzle 10, water nozzle cap 11 and push rod 12 are connected from top to bottom, and be connected with separatory joint 4 lower ends by screw thread, last cylinder barrel 6 and following cylinder barrel 15 respectively with liquid inlet joint 4 on, following two ends connect, the common active chamber of forming the moving piston assembly, outlet valve assembly 25 is arranged on fluid bridge-type joint 24 the insides, under the spring 13 that commutates be arranged on liquid inlet joint 22 tops, sub-coupling 1 is connected with tubing string by box with standing valve assembly 19; The anti-loop structure of the pump housing comprises sub-coupling 1, oil-release valve cover 2, fuel-displaced ball valve 3, separatory joint 4, upper exterior tube 5, last cylinder barrel 6, strut 7, last commutation spring 8, spring supporting positive cover 9, throttling water nozzle 10, water nozzle cap 11, push rod 12, under the spring 13 that commutates, bridge-type joint 14, following cylinder barrel 15, feed liquor screen casing 16, lower outer pipe 17, box cupling 18 and standing valve assembly 19, sub-coupling 1, separatory joint 4, upper exterior tube 5, feed liquor screen casing 16, lower outer pipe 17, box cupling 18 and standing valve assembly 19 are composed in series pump housing shell from top to bottom, oil-release valve cover 2 and fuel-displaced ball valve 3 are arranged on separatory joint 4 tops, strut 7, last commutation spring 8, spring supporting positive cover 9, throttling water nozzle 10, water nozzle cap 11 and push rod 12 are connected from top to bottom, and be connected with separatory joint 4 lower ends by screw thread, last cylinder barrel 6 and following cylinder barrel 15 respectively with bridge-type joint 14 on, following two ends connect, the common active chamber of forming the moving piston assembly, under the spring 13 that commutates be arranged on bridge-type joint 14 tops, sub-coupling 1 is connected with tubing string by box with standing valve assembly 19; Piston is in series from top to bottom by upper piston 32, commutation ball valve 27, valve bonnet 28, push rod 29, movable pin 30, long-term job plug 31, upper piston 32 is arranged on cylinder barrel 6 the insides, long-term job plug 31 is arranged on down cylinder barrel 15 the insides, and push rod 29 and movable pin 30 promote the commutation that commutation valve balls 27 are realized piston motion by the spring 13 that commutates down.

Claims (5)

1. Rodless hydraulic deep-well oil pump comprises the pump housing and piston, it is characterized in that the pump housing is made up of positive and negative two kinds of loop structures, and piston is in series from top to bottom by upper piston, commutation ball valve, valve bonnet, push rod, movable pin, long-term job plug.
2. Rodless hydraulic deep-well oil pump according to claim 1, it is characterized in that described pump housing direct circulation structure comprises sub-coupling, the feed liquor screen casing, screen joint, the separatory joint, upper exterior tube, last cylinder barrel, strut, last commutation spring, the spring supporting positive cover, the throttling water nozzle, the water nozzle cap, push rod, under the spring that commutates, liquid inlet joint, following cylinder barrel, box cupling, lower outer pipe, fuel-displaced bridge-type joint, the outlet valve assembly, bottom sub-coupling and standing valve assembly, sub-coupling, the separatory joint, upper exterior tube, liquid inlet joint, box cupling, lower outer pipe, fuel-displaced bridge-type joint, bottom sub-coupling and standing valve assembly are connected from top to bottom, feed liquor screen casing and screen joint are arranged on separatory joint top, strut, last commutation spring, the spring supporting positive cover, the throttling water nozzle, water nozzle cap and push rod are connected from top to bottom, last cylinder barrel and following cylinder barrel respectively with liquid inlet joint on, following two ends connect.
3. Rodless hydraulic deep-well oil pump according to claim 1, it is characterized in that the anti-loop structure of the described pump housing comprises sub-coupling, oil-release valve cover, fuel-displaced ball valve, the separatory joint, upper exterior tube, last cylinder barrel, strut, last commutation spring, the spring supporting positive cover, the throttling water nozzle, the water nozzle cap, push rod, under the spring that commutates, the bridge-type joint, following cylinder barrel, the feed liquor screen casing, lower outer pipe, box cupling and standing valve assembly, sub-coupling, the separatory joint, upper exterior tube, the feed liquor screen casing, lower outer pipe, box cupling and standing valve assembly are connected from top to bottom, oil-release valve cover and fuel-displaced ball valve are arranged on separatory joint top, strut, last commutation spring, the spring supporting positive cover, the throttling water nozzle, water nozzle cap and push rod are connected from top to bottom, last cylinder barrel and following cylinder barrel respectively with the bridge-type joint on, following two ends connect.
4. Rodless hydraulic deep-well oil pump according to claim 1 and 2, it is characterized in that described push rod and movable pin by under commutate spring with the commutation ball valve join.
5. according to claim 1 or 3 described Rodless hydraulic deep-well oil pumps, it is characterized in that described push rod and movable pin by under the spring that commutates join with the commutation ball valve.
CN2010202188578U 2010-06-08 2010-06-08 Rodless hydraulic deep oil well pump Expired - Fee Related CN201705632U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202188578U CN201705632U (en) 2010-06-08 2010-06-08 Rodless hydraulic deep oil well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202188578U CN201705632U (en) 2010-06-08 2010-06-08 Rodless hydraulic deep oil well pump

Publications (1)

Publication Number Publication Date
CN201705632U true CN201705632U (en) 2011-01-12

Family

ID=43442788

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202188578U Expired - Fee Related CN201705632U (en) 2010-06-08 2010-06-08 Rodless hydraulic deep oil well pump

Country Status (1)

Country Link
CN (1) CN201705632U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106014347A (en) * 2016-07-05 2016-10-12 刘军 Linear hydraulic motor oil production equipment of rodless oil production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106014347A (en) * 2016-07-05 2016-10-12 刘军 Linear hydraulic motor oil production equipment of rodless oil production
CN106014347B (en) * 2016-07-05 2018-10-30 刘军 The straight line fluid motor oil production equipment of Rodless oil extraction

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110112

Termination date: 20150608