CN207437034U - Working fluid injection device based on pumping unit - Google Patents
Working fluid injection device based on pumping unit Download PDFInfo
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- CN207437034U CN207437034U CN201721538690.1U CN201721538690U CN207437034U CN 207437034 U CN207437034 U CN 207437034U CN 201721538690 U CN201721538690 U CN 201721538690U CN 207437034 U CN207437034 U CN 207437034U
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- working fluid
- pipe
- pumping unit
- oil pipe
- ascending pipe
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Abstract
The utility model discloses a kind of working fluid injection device based on pumping unit, including pumping unit, casing, oil pipe, circular passage is formed between the oil pipe and casing, the first tubing pump is equipped in the oil pipe, the upper end of the oil pipe is detachably equipped with ascending pipe, the second tubing pump or simple pump are equipped in the ascending pipe, and first tubing pump, the second tubing pump or simple pump are connected by sucker rod with pumping unit, working fluid ascending pipe is also associated on the ascending pipe, the working fluid ascending pipe extends to working fluid connecting tube along circular passage.Working fluid is injected stratum by this injection device using pumping unit self power system, when can substitute working fluid injection, the application of a whole set of job that requires special skills vehicle or equipment, greatly reduce operation consumption and operating expenses, but also can realize that injection discharge capacity is identical with production liquid speed degree, meet the requirement that small displacement is selectively administered, whole set process can meet a variety of demands, it is workable, it is applied widely.
Description
Technical field
The utility model is related to a kind of oil extraction in oil field measure technologies, and in particular to a kind of working fluid injection based on pumping unit
Device.
Background technology
In the long-term recovery process in oil field, oil-water well is present with many problem of being unfavorable for crude oil production, especially develops
Into the middle and later periods, oil-water well measure is frequent, such as profile control, water blockoff, handle up, it is necessary to oil-water well is safeguarded in time, measure make
Industry.Conventional profile control, water blockoff, note the measures needs such as gather, handle up the liquid pumping on ground to stratum.But injection treatment fluid
Speed is fast, easily leads to operation pressure height, pollutes the problems such as non-object layer, so as to influence oil well output.Therefore, small displacement, mild
Formula injection mode is the important technology protected oil reservoir, increase oil well stimulation production.
At present, downhole pumping installation is general as shown in figure 3, the pumping unit including being arranged on ground, the set in stratum
The oil pipe managed, be sheathed in casing, bottom is equipped with screen casing and silk plug in the oil pipe, in the oil pipe and positioned at the upper of screen casing
Side is equipped with a tubing pump, and the tubing pump is connected by sucker rod with pumping unit, and it is logical that annular is formed between the oil pipe and casing
Road, one end of the circular passage are equipped with working fluid connecting tube, and the working fluid connecting tube often connects Special work vehicle (cement
Vehicle or fracturing unit truck), high-pressure plunger pump (such as profile control pump) power is provided, working fluid is injected pit shaft and stratum.Both are provided
The method of power respectively has advantage and disadvantage：First, Special work vehicle is operated by diesel engine powers transfer tube, discharge capacity is larger, generally
In 18m3/ more than h is only suitable for short time injection operation, it is impossible to long-term operation；Second, high-pressure plunger pump is provided by electric system
Power drives pump work, and controllable discharge capacity is in 5~12m3/ d, it is necessary to high-power transformer, cable and larger smooth hard well site,
It constructs for a long time in being suitble to.However both approaches are there are energy consumption is big, costly, heavy workload, mobility is not strong, to well
The problems such as requirement of the conditions such as field, road, weather is high；Simultaneously compared with most of stripper wells (daily fluid production rate only has several sides), note
It is substantially bigger than normal to enter discharge capacity, oil reservoir easy to pollute, particularly chemical profile control or water blockoff since discharge capacity is big, easily cause to block oil reservoir etc.
Accident occurs.
Utility model content
In view of the deficienciess of the prior art, the utility model provides a kind of working fluid injection device based on pumping unit,
Working fluid is injected stratum by this injection device using pumping unit self power system, carries out some well maintenances and measures to reform,
The application of a whole set of job that requires special skills vehicle or equipment can be substituted, greatly reduces operation consumption and operating expenses, but also can be with
It realizes that injection discharge capacity is identical with production liquid speed degree, meets the requirement that small displacement is selectively administered, whole set process can meet a variety of demands,
Construction is more safe and simple, economical, efficient, workable, applied widely.
In order to achieve the above object, the technical solution that the utility model is taken：
Working fluid injection device based on pumping unit, including pumping unit, casing, the oil pipe in casing, the oil pipe
Interior bottom is equipped with silk plug and screen casing successively, forms circular passage between the oil pipe and casing, the oil pipe upper end it is another
Side, which is equipped with, adopts liquid outlet pipe, and one end of the circular passage is equipped with working fluid connecting tube, and the oil pipe is interior and is located at the top of screen casing
Equipped with the first tubing pump, the upper end of the oil pipe is removably connected with a working fluid injection part, the working fluid injection part
Ascending pipe including being detachably arranged on the oil pipe upper end, the one side of the ascending pipe upper end are communicated with circular passage, the note
Enter and a sealing element is equipped between pipe and the oil pipe, the second tubing pump or simple pump, and described first are equipped in the ascending pipe
Tubing pump, the second tubing pump or simple pump are connected by sucker rod with pumping unit, and working fluid is also associated on the ascending pipe
Ascending pipe, the working fluid ascending pipe extend to working fluid connecting tube along circular passage.
As optimal technical scheme, the end capacity compression of working fluid ascending pipe or shock damage, improve working fluid in order to prevent
The crashworthiness hit intensity of ascending pipe, ensures being normally carried out for working fluid injection, and the end of the working fluid ascending pipe connects an anticollision
Hit connector or connector protection device.
As optimal technical scheme, in order to ensure fit sealing between ascending pipe and oil pipe, prevent working fluid from ascending pipe
It into oil pipe, influences working fluid and normally injects, reduce injection efficiency, while ensure easy for assemble or unload, the sealing element setting
For the pipe nipple of intermediate seal.
Compared with prior art, the utility model has the advantage that：
1st, working fluid is injected stratum by this injection device using pumping unit self power system, carry out some well maintenances and
Measures to reform, when can substitute working fluid injection, the application of a whole set of job that requires special skills vehicle or equipment greatly reduces operation consumption
And operating expenses, but also can realize that injection discharge capacity is identical with production liquid speed degree, and meet the requirement that small displacement is selectively administered, it is whole
Set technique can meet a variety of demands, and construction is more safe and simple, economical, efficient, workable, applied widely.
2nd, the end of working fluid ascending pipe connects an anticollision connector or connector protection device, effectively prevents working fluid from injecting
The end capacity compression of pipe hits damage, improves the crashworthiness hit intensity of working fluid ascending pipe, ensures being normally carried out for working fluid injection.
3rd, sealing element is arranged to the pipe nipple of intermediate seal, ensures fit sealing between ascending pipe and oil pipe, prevents working fluid
Enter lower part oil pipe from ascending pipe, ensure that working fluid normally injects, improve injection efficiency, while ensure easy for assemble or unload.
Description of the drawings
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is a kind of structure diagram of the utility model；
Fig. 3 is the structure diagram of existing working fluid injection device；
Drawing reference numeral：1st, pumping unit, 2, casing, 3, oil pipe, 4, screen casing, 5, silk plug, 6, circular passage, 7, working fluid connection
Pipe, the 8, first tubing pump, 9, ascending pipe, 10, sealing element, the 11, second tubing pump, 12, simple pump, 13, sucker rod, 14, enter well
Liquid ascending pipe, 15, anticollision connector, 16, Hydraulic anchor, 17, pressure-resistant blowout prevention box, 18, Special work vehicle, 19, high-pressure plunger pump,
20th, working fluid tank.
Specific embodiment
It is proposed a kind of specific embodiment of the utility model as shown in Figure 1, the working fluid injection device based on pumping unit, including
Pumping unit 1 on ground, the casing 2 in stratum, the oil pipe 3 being sheathed in casing 2, the both sides of the oil pipe 3 lead to
It crosses Hydraulic anchor 16 oil pipe 3 is fixed in casing 2, the bottom in the oil pipe 3 is equipped with silk plug 5 and screen casing 4, the oil pipe successively
Circular passage 6, utilizes lock gate system are formed between 3 and casing 2, one end of the circular passage 6 is equipped with working fluid connecting tube 7,
The first tubing pump 8 is equipped in the oil pipe 3 and positioned at the top of screen casing 4, the upper end of the oil pipe 3 is removably connected with one and enters
Well liquid injection part, the working fluid injection part include the ascending pipe 9 for being detachably arranged on 3 upper end of oil pipe, the injection
The one side of 9 upper end of pipe is communicated with the circular passage 6, and the opposite side of 9 upper end of ascending pipe, which is equipped with, adopts liquid outlet pipe, described to adopt liquid
Outlet pipe is connected with next production procedure, and a sealing element 10, the sealing element are equipped between the ascending pipe 9 and the oil pipe 3
10 are equipped with the second tubing pump 11 or simple for preventing the working fluid of injection ascending pipe 9 from entering in oil pipe 3, in the ascending pipe 9
Pump 12, and first tubing pump 8, the second tubing pump 11 or simple pump 12 are connected by sucker rod 13 with pumping unit 1, first
Tubing pump 8 is original production pump, and normal recover the oil uses, and the second tubing pump 11 or simple pump 12 are this injection device, former during work
Production pump is stopped, and working fluid ascending pipe 14 is additionally provided on the ascending pipe 9, and the working fluid ascending pipe 14 is logical along annular
Road 6 extends to working fluid connecting tube 7, this injection device is former difference lies in being removed in the upper end of crude oil pipe with original tubing string figure
The upper end of oil pipe 3 and sucker rod 13 connects this working fluid injection part, then the top of the ascending pipe 9 as crude oil pipe, if
There is a pressure-resistant blowout prevention box 17, and the one side of the ascending pipe 9 is additionally provided with a pipeline for entering other production procedures.
The present embodiment simple pump 12 has simply lacked lower part as shown in Fig. 2, simple pump 12 is identical in the structure of tubing pump
Fixed valve, operation principle is as tubing pump, upstroke：Piston stroking upward, the travelling valve on top are closed, pumped under cylinder pressure
Drop, liquid enter from tank along hollow pipe in pump, while the liquid for pumping upper part enters mesh along and into oil jacket annular space from casing
Layer；Or carry out profile control, water blockoff into offset well；Down stroke：Descent of piston, pump cylinder pressure rise, the travelling valve on top are opened,
Liquid is discharged to out of pump in oil pipe more than piston, while pumps the liquid volume that upper part discharge polished rod enters.Using simple
Pump is not only at low cost, can also utilize because the bad pump of valve sealing problem is fixed in pump lower part, reduce production cost.
The end of the working fluid ascending pipe 14 connects an anticollision connector 15 or connector protection device, effectively prevents into well
The end capacity compression of liquid ascending pipe 14 hits damage, improves the crashworthiness hit intensity of working fluid ascending pipe 14, ensures working fluid injection
Be normally carried out.
The sealing element 10 is arranged to the pipe nipple of intermediate seal, ensures fit sealing between ascending pipe 9 and oil pipe 3, effectively
It prevents working fluid from entering lower part oil pipe from ascending pipe, ensures that working fluid normally injects into well, it is ensured that injection efficiency is also beneficial to extensive
Demutation is produced.
When the utility model is used：First oil-producing is stopped, such as the injection device of Fig. 3, by the upper end of oil pipe 3 and sucker rod 13
It removes, connects the working fluid injection part of the present invention, balancing opens pumping, pressure testing, by tank liquid connection working fluid ascending pipe 14 again
Interior, working fluid is injected into circular passage 6 by the second tubing pump 11 or simple pump 12 under the drive of pumping unit 1, and then is entered
Purpose oil reservoir after the suitable working fluid of injection to be done, removes working fluid injection part, recovers original pipeline, you can open again
Well produces.
Certainly, simply the utility model preferred embodiment is described in detail with reference to attached drawing above, not
The scope of the utility model is limited with this, all equivalence changes made according to the principle of the utility model, construction and structure,
It should all be covered by the scope of protection of the utility model.
Claims (3)
1. the working fluid injection device based on pumping unit, including pumping unit (1), casing (2), the oil pipe being sheathed in casing (2)
(3), the bottom in the oil pipe (3) is equipped with silk plug (5) and screen casing (4) successively, is formed between the oil pipe (3) and casing (2)
Circular passage (6), one end of the circular passage (6) are equipped with working fluid connecting tube (7), and the oil pipe (3) is interior and positioned at screen casing
(4) top is equipped with the first tubing pump (8), it is characterised in that：The upper end of the oil pipe (3) is removably connected with working fluid note
Enter component, the working fluid injection part includes the ascending pipe (9) for being detachably arranged on the oil pipe (3) upper end, the ascending pipe
(9) one side of upper end is communicated with the circular passage (6), and a sealing element is equipped between the ascending pipe (9) and the oil pipe (3)
(10), the second tubing pump (11) or simple pump (12), and first tubing pump (8), the second pipe are equipped in the ascending pipe (9)
Formula pumps (11) or simple pump (12) and is connected by sucker rod (13) with pumping unit (1), be also associated on the ascending pipe (9) into
Well liquid ascending pipe (14), the working fluid ascending pipe (14) extend to working fluid connecting tube (7) along circular passage.
2. the working fluid injection device according to claim 1 based on pumping unit, it is characterised in that：The working fluid injection
The end for managing (14) connects an anticollision connector (15).
3. the working fluid injection device according to claim 1 or 2 based on pumping unit, it is characterised in that：The sealing element
(10) it is arranged to the short circuit of intermediate seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538690.1U CN207437034U (en) | 2017-11-16 | 2017-11-16 | Working fluid injection device based on pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538690.1U CN207437034U (en) | 2017-11-16 | 2017-11-16 | Working fluid injection device based on pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437034U true CN207437034U (en) | 2018-06-01 |
Family
ID=62290050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721538690.1U Active CN207437034U (en) | 2017-11-16 | 2017-11-16 | Working fluid injection device based on pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676063A (en) * | 2017-11-16 | 2018-02-09 | 钦州学院 | Working fluid injection device based on oil pumper |
-
2017
- 2017-11-16 CN CN201721538690.1U patent/CN207437034U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676063A (en) * | 2017-11-16 | 2018-02-09 | 钦州学院 | Working fluid injection device based on oil pumper |
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