CN203770103U - Feedback type steam injection oil pump - Google Patents

Feedback type steam injection oil pump Download PDF

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Publication number
CN203770103U
CN203770103U CN201420205664.7U CN201420205664U CN203770103U CN 203770103 U CN203770103 U CN 203770103U CN 201420205664 U CN201420205664 U CN 201420205664U CN 203770103 U CN203770103 U CN 203770103U
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CN
China
Prior art keywords
plunger
antiscale
pump barrel
pump
oil
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Withdrawn - After Issue
Application number
CN201420205664.7U
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Chinese (zh)
Inventor
关伟
卜春霞
袁文庆
段汉亮
樊慧萍
孙洁
欧征
韩星群
袁婧
梁鹍
Original Assignee
易鲁川
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Filing date
Publication date
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Priority to CN201420205664.7U priority Critical patent/CN203770103U/en
Application granted granted Critical
Publication of CN203770103U publication Critical patent/CN203770103U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a feedback type steam injection oil pump which comprises an upper joint, an oil outlet joint, an antiscale pump cylinder, an antiscale plunger, an oil outlet valve, an oil inlet valve, a plunger pump cylinder, a plunger, an inner connecting pipe, an outer connecting pipe and a lower joint. A steam injection channel is designed, so that steam can be injected into a ground layer at a pump touch state and rotating pumping production can be carried out immediately after steam injection is finished; the bottom of the plunger pump cylinder is communicated with the outside of the pump; the upper end of the plunger pump cylinder is always communicated with an oil pipe on the pump; under the action of pressure difference, the plunger pump cylinder gains a downward feedback force so as to overcome the friction between a sucker rod and thickened oil after crude oil is thickened at the later stage of steam injecting production and the well temperature drops; the sucker rod can smoothly move downwards; the production of an oil well can be carried on; the production period of the oil well can be prolonged; a feedback force can be generated without connecting two pumps in series; the feedback type steam injection oil pump is assembled in a workshop and is integrally transported and placed down in the well, and therefore the usage is convenient; the antiscale plunger covers the inner wall of the antiscale pump cylinder, so that scale is not formed on the inner wall of the antiscale pump cylinder when the steam is injected and rotating pumping can be successfully carried out after stem injection is finished.

Description

Reaction type steam injection oil well pump
Technical field
The utility model is the oil well pump that oil extraction in oil field is used, and is the oil well pump that coordinates thermal recovery steam injection to use, specifically a kind of reaction type steam injection oil well pump.
Background technique
Exploitation thick oil well will be carried out steam soak, and its process is first to being lowered to steam injection string in well to steam injection in heavy oil tested layer, then steam injection string is proposed from well, then by the flow string G.I.H oil pumping with oil well pump.This mode operation is many, and the engineering time is long, and operating cost is high.For this reason, adopted steam injection thermal recovery oil well pump, this oil well pump is lowered to steam injection string, and steam can pass through oil well pump, has noted after steam, can not propose steam injection string and just can open pumping product.As Chinese patent 201320386978.7 " steam injection thermal recovery oil well pump ", for realizing this requirement design.But this oil well pump does not have feedback force, the surface friction drag after the late well temperature decline crude oil retrogradation of producing in steam injection between sucker rod and viscous crude makes sucker rod, the descending difficulty of plunger.In order to solve the problem of the descending difficulty of sucker rod, some technician have proposed the technological scheme that above-mentioned patented technology is combined with feedback type oil-well pump, but because feedback type oil-well pump is made up of two pumps in series, its total length is longer, need to divide two sections to go into the well, processing, transport, use are all inconvenient, so be difficult to carry out.
Summary of the invention
The purpose of this utility model is to provide a kind of steam injection thermal recovery oil well pump, meets the requirement with infusion vapour, and can when descending, produce feedback force, overcomes the problem of above-mentioned existence, makes its compact structure, shorten length, processing, transport, easy to use.
The purpose of this utility model is achieved in that and comprises upper connection, delivery connection, antiscale pump barrel, antiscale plunger, outlet valve, oiling valve, plunger pump barrel, plunger, inner connection tube, outer connecting pipe, lower contact, the bottom of upper connection is connected with the top of antiscale pump barrel, the bottom of antiscale pump barrel is connected with the top of outer connecting pipe, twice screw thread is arranged at the top of lower contact, one screw thread is connected with the bottom of inner connection tube, the top of inner connection tube is connected with the bottom of plunger, and the top of plunger is connected with oiling valve, oiling valve, plunger, inner connection tube, lower contact is put into outer connecting pipe after connecting makes another road screw thread on lower contact top be connected with the lower thread of outer connecting pipe, delivery connection, antiscale plunger, outlet valve, plunger pump barrel is lowered to antiscale pump barrel after connecting successively, in outer connecting pipe, the outer wall of plunger pump barrel is plunger, the inwall of plunger pump barrel is pump barrel, antiscale plunger covers the inwall of antiscale pump barrel, the inwall of the outer wall of plunger pump barrel and antiscale pump barrel is supporting, and inwall and the plunger of plunger pump barrel are supporting, and the bottom of antiscale pump barrel outreaches groove, inline groove, delivery connection are arranged at the bottom of antiscale plunger, antiscale plunger, outlet valve, under plunger pump barrel, outreach afterwards on earth groove and inline groove UNICOM, equalizing orifice is arranged at the bottom of inner connection tube.
Urceolus is installed in the outside of antiscale pump barrel, outer connecting pipe, and the top of urceolus is connected with upper connection.
The beneficial effects of the utility model are: designed steam injection passage, can steam injection in the time touching pump state to stratum, after steam injection finishes, can turn immediately pumping produces, bottom and the pump of plunger pump barrel be interlinked to the outside (realizing by equalizing orifice), the upper end of plunger pump barrel communicates with oil pipe on pump all the time, therefore, head pressure is born in the upper-end surface of plunger pump barrel, suction pressure is born in the lower end surface of plunger pump barrel, under head pressure and the poor effect of suction pressure (head pressure is higher than suction pressure), plunger pump barrel obtains downward feedback force, make can overcome the surface friction drag between sucker rod and viscous crude after its late well temperature decline crude oil retrogradation of producing in steam injection, make sucker rod, plunger can be descending smoothly, oil well can continue to produce, can extend the oil well production cycle, do not need to adopt two pumps in series composition just can produce feedback force, need not divide two sections of transports, go into the well, in the integral transport of shop assembly, go into the well, thereby easy to use, can ensure assembling quality, using effect is good, antiscale plunger covers the inwall of antiscale pump barrel, the inwall that makes antiscale pump barrel can fouling in the time of steam injection, after steam injection finishes, can turn and take out smoothly.
Brief description of the drawings
Fig. 1 is the utility model embodiment's erection drawing.
Fig. 2 is split into the erection drawing two sections from A-A punishment in Fig. 1.
Embodiment
The example of executing below in conjunction with Fig. 1,2 pairs of the utility model realities describes.
As can be seen from the figure, embodiment of the present utility model comprises upper connection 1, delivery connection 2, antiscale pump barrel 3, antiscale plunger 4, outlet valve 7, oiling valve 8, plunger pump barrel 9, plunger 10, inner connection tube 11, outer connecting pipe 12, urceolus 13, lower contact 15, the bottom of upper connection 1 is connected with the top of antiscale pump barrel 3, the bottom of antiscale pump barrel 3 is connected with the top of outer connecting pipe 12, twice screw thread is arranged at the top of lower contact 15, one screw thread is connected with the bottom of inner connection tube 11, the top of inner connection tube 11 is connected with the bottom of plunger 10, and the top of plunger 10 is connected with oiling valve 8, oiling valve 8, plunger 10, inner connection tube 11, after lower contact 15 connects, put into outer connecting pipe 12 another road screw thread on lower contact 15 tops is connected with the lower thread of outer connecting pipe 12, delivery connection 2, antiscale plunger 4, outlet valve 7, plunger pump barrel 9 is lowered to antiscale pump barrel 3 after connecting successively, in outer connecting pipe 12, the outer wall of plunger pump barrel 9 is plunger, the inwall of plunger pump barrel 9 is pump barrel, plunger pump barrel 9 is in the time touching pump state, antiscale plunger 4 covers the inwall of antiscale pump barrel 3, the inwall that makes antiscale pump barrel 3 can fouling in the time of steam injection, after steam injection finishes, can turn and take out smoothly, can holddown, the inwall of the outer wall of plunger pump barrel 9 and antiscale pump barrel 3 is supporting, and the inwall of plunger pump barrel 9 and plunger 10 are supporting, and the bottom of antiscale pump barrel 3 outreaches groove 5, inline groove 6, delivery connection 2 are arranged at the bottom of antiscale plunger 4, antiscale plunger 4, outlet valve 7, plunger pump barrel 9 times on earth after (touching pump state), outreach groove 5 and inline groove 6 UNICOMs, form steam injection passage, equalizing orifice 14 is arranged at the bottom of inner connection tube 11.Urceolus 13 is installed in the outside of antiscale pump barrel 3, outer connecting pipe 12, the top of urceolus 13 is connected with upper connection 1, make antiscale pump barrel 3, outer connecting pipe 12 form annulus access with the separate room of urceolus 13, inject vapour and enter again stratum through the pipeline of this passage inflow bottom, the vapour injecting is not outreached from outward in the rear directly arrival of groove 5 outflows sleeve pipe, reduce heat loss.
The bottom of touching pump point and can be plunger pump barrel 9 contacts and touches pump with lower contact 15, also can be that outlet valve 7 contacts and touches pump with oiling valve 8, the utility model selects the bottom of plunger pump barrel 9 to contact and touch pump with lower contact 15, and the outer wall that can make like this plunger pump barrel 9 is in closed state and non-scaling.The effect of equalizing orifice 14 be make the lower end of plunger pump barrel 9 for all the time in low-pressure state, on outer connecting pipe 12, also belong to protection domain of the present utility model so equalizing orifice 14 is arranged on.
In the time having proposed over-stroke oil pumping, the outer wall of plunger pump barrel 9 covers the inwall of antiscale pump barrel 3, inline groove 6 on antiscale plunger 4 arrives on antiscale pump barrel 3, on antiscale pump barrel 3, outreach groove 5 by the closed front of plunger pump barrel 9, the inwall of plunger pump barrel 9 and the supporting sealing of plunger 10, the outer wall of plunger pump barrel 9 and the supporting sealing of antiscale pump barrel 3, bottom and the pump of plunger pump barrel 9 be interlinked to the outside (realizing by equalizing orifice 14), therefore, head pressure is born in the upper-end surface of plunger pump barrel 9, suction pressure is born in the lower end surface of plunger pump barrel 9, under head pressure and the poor effect of suction pressure, plunger pump barrel 9 obtains downward feedback force, make can overcome the surface friction drag between sucker rod and viscous crude after its late well temperature decline crude oil retrogradation of producing in steam injection, make sucker rod, plunger can be descending smoothly.
Having noted vapour turns while drawing up stroke, outlet valve 7 cuts out, the inner space of plunger pump barrel 9 increases (between outlet valve 7 and oiling valve 8), pressure drop, and oiling valve 8 is opened, well liquid carries out the internal cavities of plunger pump barrel 9, when down stroke, the inner space of plunger pump barrel 9 reduces (between outlet valve 7 and oiling valve 8), and pressure raises, oiling valve 8 cuts out, and outlet valve 7 is opened discharge opeing.
Fig. 1 is that Fig. 2 is the size in order to increase each several part, is convenient to clearly show all parts in order to see on the whole structure of the present utility model.

Claims (2)

1. a reaction type steam injection oil well pump, comprises upper connection (1), delivery connection (2), antiscale pump barrel (3), antiscale plunger (4), outlet valve (7), oiling valve (8), plunger pump barrel (9), plunger (10), inner connection tube (11), outer connecting pipe (12), lower contact (15), it is characterized in that: the bottom of upper connection (1) is connected with the top of antiscale pump barrel (3), the bottom of antiscale pump barrel (3) is connected with the top of outer connecting pipe (12), twice screw thread is arranged at the top of lower contact (15), one screw thread is connected with the bottom of inner connection tube (11), the top of inner connection tube (11) is connected with the bottom of plunger (10), and the top of plunger (10) is connected with oiling valve (8), oiling valve (8), plunger (10), inner connection tube (11), lower contact (15) is put into outer connecting pipe (12) after connecting makes another road screw thread on lower contact (15) top be connected with the lower thread of outer connecting pipe (12), delivery connection (2), antiscale plunger (4), outlet valve (7), plunger pump barrel (9) is lowered to antiscale pump barrel (3) after connecting successively, outer connecting pipe (12), the outer wall of plunger pump barrel (9) is plunger, the inwall of plunger pump barrel (9) is pump barrel, antiscale plunger (4) covers the inwall of antiscale pump barrel (3), the inwall of the outer wall of plunger pump barrel (9) and antiscale pump barrel (3) is supporting, and the inwall of plunger pump barrel (9) and plunger (10) are supporting, and the bottom of antiscale pump barrel (3) outreaches groove (5), inline groove (6) is arranged at the bottom of antiscale plunger (4), delivery connection (2), antiscale plunger (4), outlet valve (7), under plunger pump barrel (9), outreach afterwards on earth groove (5) and inline groove (6) UNICOM, equalizing orifice (14) is arranged at the bottom of inner connection tube (11).
2. reaction type steam injection oil well pump according to claim 1, is characterized in that: urceolus (13) is installed in the outside of antiscale pump barrel (3), outer connecting pipe (12), and the top of urceolus (13) is connected with upper connection (1).
CN201420205664.7U 2014-04-25 2014-04-25 Feedback type steam injection oil pump Withdrawn - After Issue CN203770103U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420205664.7U CN203770103U (en) 2014-04-25 2014-04-25 Feedback type steam injection oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420205664.7U CN203770103U (en) 2014-04-25 2014-04-25 Feedback type steam injection oil pump

Publications (1)

Publication Number Publication Date
CN203770103U true CN203770103U (en) 2014-08-13

Family

ID=51287300

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420205664.7U Withdrawn - After Issue CN203770103U (en) 2014-04-25 2014-04-25 Feedback type steam injection oil pump

Country Status (1)

Country Link
CN (1) CN203770103U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925203A (en) * 2014-04-25 2014-07-16 易鲁川 Feedback type steam injection oil well pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925203A (en) * 2014-04-25 2014-07-16 易鲁川 Feedback type steam injection oil well pump
CN103925203B (en) * 2014-04-25 2015-12-30 易鲁川 Reaction type steam injection oil well pump

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140813

Effective date of abandoning: 20151230

C25 Abandonment of patent right or utility model to avoid double patenting