CN104912523B - Vacuum type fluid power pumping positive displacement pump - Google Patents
Vacuum type fluid power pumping positive displacement pump Download PDFInfo
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- CN104912523B CN104912523B CN201510351625.7A CN201510351625A CN104912523B CN 104912523 B CN104912523 B CN 104912523B CN 201510351625 A CN201510351625 A CN 201510351625A CN 104912523 B CN104912523 B CN 104912523B
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Abstract
The invention discloses a kind of vacuum type fluid power draw-off pump, it includes power cylinder top connection, power cylinder, sealing shroud, compression packer, working cylinder top connection, vacuum work cylinder and the synchronous micro- row's plunger pump being sequentially connected from top to bottom；Power piston is provided with power cylinder, vacuum cock is provided with vacuum work cylinder, power piston and vacuum cock are connected by hollow connecting rod, sealing shroud is sleeved on hollow connecting rod and has obstructed the connection of power cylinder and vacuum work cylinder, synchronous micro- row's plunger pump includes seal nipple under plunger, back-moving spring and the working cylinder being sequentially connected, annular box cupling, oil pipe short circuit and oil pipe short circuit plug, plunger pump valve is provided with the middle part of oil pipe short circuit plug, plunger passes through seal nipple and plunger plug under working cylinder affixed, and back-moving spring is located under plunger and working cylinder between seal nipple.The present invention can make to realize quick continuous draining after Oil testing and acid fracturing, it is to avoid formation damage, improve effect and efficiency.
Description
Technical field
The present invention relates to natural petroleum gas field technical field, especially a kind of vacuum type fluid power pumping positive displacement pump.
Background technology
Discharge opeing is to implement stratum production liquid fluidity, ask for the important means of production capacity during Oil testing；Profit well acidizing,
After the measures to reform such as pressure break, to prevent working fluid from producing injury to stratum, it is also desirable to timely discharge opeing.Thus, discharge opeing is oil gas
An important procedure in the underground work of field.Current draining mode has the pumping of waterpower swab, oil-line pump, gaslift and screw pump, water
Several techniques such as power piston pump, jet pump, respectively have its own hole condition condition and the requirement of adaptation, respectively there is its defect：Pumping discharge opeing by
Take out that the restrictive condition such as deep is more and seriously polluted, human factor influence compared with multicycle length, the requirement of the timely row of returning can not be met；Gas
Lift the complicated cost of equipment higher；Screw pump, oil-line pump discharge opeing, which exist, turns that to take out many energy consumptions of process big；Hydraulic piston pump, jet pump row
Liquid is difficult to judge whether stratum produces water within a short period of time, pole is unsuitable for prospect pit due to power fluid and stratum production liquid mixing discharge
Implement the requirement of fluidity.
The content of the invention
It can make to realize after Oil testing and acid fracturing the technical problem to be solved in the present invention is to provide one kind and quickly connect
Continuous discharge opeing, it is to avoid formation damage, improves the vacuum type fluid power pumping positive displacement pump of effect and efficiency.
In order to solve the above-mentioned technical problem, it is the present invention includes being tightly connected successively from top to bottom power cylinder top connection, dynamic
Power cylinder, sealing shroud, compression packer, working cylinder top connection, vacuum work cylinder and synchronous micro- row's plunger pump；
It is provided with the power cylinder in a power piston, the vacuum work cylinder and is provided with a vacuum cock, the power is lived
Plug and vacuum cock are linked together by a hollow connecting rod, in the middle part of the power piston provided with one be used for hollow connecting rod inner chamber with
Valve on the hollow stem for connecting or blocking between oil pipe inner chamber, the sealing shroud sealing shroud is mounted on hollow connecting rod and the sealing shroud
Obstruct and also extended through in the connection between power cylinder inner chamber and vacuum work cylinder inner chamber, the sealing shroud circumference provided with multiple power
Cylinder passes fluid apertures, extends upward through in hollow connecting rod bottom week provided with multiple hollow connecting rod inlet openings, the working cylinder top connection week
Extend upward through provided with multiple working cylinder feed liquor valves；
The micro- row's plunger pump of synchronization is included under plunger, back-moving spring and the working cylinder being tightly connected successively from top to bottom
Seal nipple upper end is threadedly coupled with vacuum work cylinder under seal nipple, oil pipe short circuit and oil pipe short circuit plug, the working cylinder,
Lower end is connected by annular box cupling with oil pipe short circuit, and a plunger pump valve, the work are provided with the middle part of the oil pipe short circuit plug
The cavity that seal nipple, annular box cupling, oil pipe short circuit plug, plunger pump valve and oil pipe short circuit are surrounded under cylinder constitutes micro- row
Plunger pump inner chamber, its upper end is formed with flange, and lower end passes through seal nipple and a plunger plug under working cylinder affixed, institute
State and be also formed with multiple be used for vacuum work cylinder intracavity bottom space and micro- organ timbering under plunger and working cylinder between seal nipple
Fill in the plunger outage of pump intracavity inter-connection, the back-moving spring is enclosed on plunger, and the back-moving spring be located at plunger flange and
Under working cylinder between seal nipple end face.
The beneficial effects of the invention are as follows：It is automatic with ground by it the invention provides a kind of vacuum type fluid power draw-off pump
Voltage supply equipment matches, and the energy that ground is provided is converted into the pressure energy of lifting liquid.Its principle is driven using Surface power drive
The up discharge fluid of underground vacuum type piston pump, completes piston reset using the vacuum of vacuum type piston pump cavity of resorption and sucks stratum
Fluid, realizes the purpose of quick continuous draining after production and oil-water well acid fracturing are asked in Oil testing induced flow.
Brief description of the drawings
Fig. 1 is the structural representation of vacuum type fluid power pumping positive displacement pump of the present invention.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Referring to Fig. 1, vacuum type fluid power pumping positive displacement pump of the invention includes the power cylinder being tightly connected successively from top to bottom
Top connection 1, power cylinder 2, sealing shroud 6, compression packer 7, working cylinder top connection 8, vacuum work cylinder 12 and synchronous micro- organ timbering
Fill in pump.
It is provided with the power cylinder 2 in a power piston 3, the vacuum work cylinder 12 and is provided with a vacuum cock 11, it is described
Power piston 3 and vacuum cock 11 are linked together by a hollow connecting rod 4, and the middle part of power piston 3 is used for sky provided with one
Valve 26 on the hollow stem for connecting or blocking between the inner chamber of heart connecting rod 4 and oil pipe inner chamber, the sealing shroud of sealing shroud 6 is mounted in hollow
On connecting rod 4 and the sealing shroud 6 has obstructed the connection between the inner chamber of power cylinder 2 and the inner chamber of vacuum work cylinder 12, the sealing shroud 6 weeks
Also extend through upwards and pass fluid apertures 5,25 provided with multiple power cylinders, extend upward through provided with multiple hollow companies the bottom week of hollow connecting rod 4
Bar inlet opening 10,23, the working cylinder top connection is extended upward through provided with multiple working cylinder feed liquor valves 9,24 for 8 weeks.
The micro- row's plunger pump of synchronization includes plunger 13, back-moving spring 14 and the work being tightly connected successively from top to bottom
The upper end of seal nipple 16 and vacuum work under seal nipple 16, oil pipe short circuit 20 and oil pipe short circuit plug 18, the working cylinder under cylinder
Make cylinder 12 to be threadedly coupled, lower end is connected by annular box cupling 17 with oil pipe short circuit 20, the middle part of oil pipe short circuit plug 18 is provided with
Seal nipple 16, annular box cupling 17, oil pipe short circuit plug 18, plunger pump valve 19 under one plunger pump valve 19, the working cylinder
The cavity surrounded with oil pipe short circuit 20 constitutes micro- row's plunger pump inner chamber, and the upper end of plunger 13 is formed with flange, and lower end is worn
Cross seal nipple 16 and a plunger plug 21 under working cylinder affixed, go back shape under the plunger 13 and working cylinder between seal nipple 16
Into have it is multiple be used for by the plunger outage 15 of the intracavity bottom space of vacuum work cylinder 12 and micro- row's plunger pump intracavity inter-connection,
22, the back-moving spring 14 is enclosed on plunger 13, and the back-moving spring 14 is located at seal nipple under the flange of plunger 13 and working cylinder
Between 16 end faces.
Before onsite application, the assembling of vacuum type fluid power pumping positive displacement pump is completed according to explanation：Reference picture 1, will be by plunger
13rd, seal nipple 16, annular box cupling 17, oil pipe short circuit 20, oil pipe short circuit silk under back-moving spring 14, plunger plug 21, working cylinder
Stifled 18 and the micro- row's plunger pump system of synchronization that constitutes of plunger pump valve 19 assemble on the ground；Then by close under working cylinder
Synchronous micro- row's plunger pump is connected by the screw thread of the outer rim of sealing joint 16 with vacuum work cylinder 12, and by screw thread with synchronous micro- row
The side of the relative vacuum work cylinder 12 of plunger pump installs working cylinder top connection 8 additional；Vacuum cock 11 is connected with hollow connecting rod 4
It is good, and vacuum cock 11 is pushed into the inner chamber of vacuum work cylinder 12；Installed additional successively in working cylinder top connection 8 by screw thread
Compression packer 7, sealing shroud 6；Valve 26 on hollow stem is installed additional in the center portion of power piston 3, and by screw thread by power
Piston 3 is installed on hollow connecting rod 4；Power cylinder 2 is now enclosed on the outside of power piston 3 and added power cylinder 2 by screw thread
On sealing shroud 6, power cylinder top connection 1 is finally installed additional by screw thread in the upper end of power cylinder 2, complete vacuum type fluid power and take out
Draw the frock of positive displacement pump.
The operation principle of vacuum type fluid power pumping positive displacement pump of the present invention：
Power piston 3, hollow connecting rod 4 and vacuum cock 11 constitute piston group, and piston group is in ground installation from sleeve pipe
Up under the external pressure effect of fluid column conduction, the plunger pump valve 19 of the bottom of vacuum work cylinder 12 is closed, now vacuum work cylinder 12
In near vacuum state；After the release of sleeve pipe external pressure, oil jacket fluid column is acted on the upper and lower surfaces of power piston 3 of piston group
Pressure differential one lower pressure of formation, because the bottom of vacuum cock 11 is vacuum, its lower surface is in not by upper pressure state, finally
Make whole piston group descending in pressed status, reach that vacuum type fluid power pumping positive displacement pump can move back and forth in well
Purpose.
By power cylinder 2, piston group, sealing shroud 6, compression packer 7, vacuum work cylinder 12, synchronous micro- row's plunger pump etc.
The integral pump of frock, top is connected by power cylinder top connection 1 with oil pipe.This instrument is delivered into estimated depth in well with oil pipe
Compression packer is setting afterwards, packing payzone and annular space fluid column layer.Now ground installation squeezes into high pressure into sleeve pipe, under high pressure
Piston group is moved upwards：Plunger pump valve 19 is closed, and working cylinder feed liquor valve 9,24 is closed, and valve 26 is opened on hollow stem, very
Liquid enters oil pipe through hollow connecting rod 4 in empty working cylinder 12；Unload after Decanning external pressure, due to when up, under vacuum cock 11
Portion has formed vacuum, and piston group is pushed and descending by oil jacket fluid column gravity, and now valve 26 is closed on hollow stem, and working cylinder enters
Liquid valve 9,24 is opened, and the inner chamber of vacuum work cylinder 12 forms negative pressure, and formation fluid is sucked in its working chamber, enters when up again
Enter oil pipe, until discharge ground completes whole discharge opeing process.The effect of synchronous micro- row's plunger pump：Vacuum cock 11 is in vacuum work
When up in cylinder 12, plunger 13 is in reset state, vacuum work cylinder and leaks into the liquid in the lower cavity of vacuum cock 11
Enter organ timbering plug pump inner chamber in a subtle way, i.e., seal nipple 16, ring under working cylinder through plunger outage 15,22 under self gravitation effect
In the cavity that shape box cupling 17, oil pipe short circuit plug 18, plunger pump valve 19 and oil pipe short circuit 20 are surrounded, the release of sleeve pipe external pressure
Afterwards, in the presence of oil jacket fluid column gravity vacuum cock 11 to push promotion plunger 13 descending, and extrude in micro- row's plunger pump inner chamber
The lost fluid stockpiled, and discharged lost fluid outside pump barrel by plunger pump valve 19, have enough in protection vacuum work cylinder 12
Vacuum space, makes whole pump barrel be in working condition steady in a long-term.
The application of the vacuum type fluid power pumping positive displacement pump of the present invention：
The vacuum type fluid power pumping positive displacement pump of the present invention is used cooperatively with ground power unit, and ground power unit includes liquid
The part such as pressure power pump and Christmas tree wellhead and metering；Oil pipe is aspirated into positive displacement pump by screw thread and vacuum type fluid power on the ground
Connection, under to behind precalculated position in well, upper lifting pipe post makes packer inversion mechanism pin change to long track by short track, then under
Putting tubing string makes the cone on packer strut slips and blocks casing wall, continue transfer compression packing element be allowed to Seal Oil set annular space and
Payzone under it.Sleeve pipe, which is suppressed to test, seals its sealing.Then wellhead tree tree is installed, is beaten using Surface power drive pumping unit to sleeve pipe
Pressure, high-pressure fluid passes fluid apertures 5,25 into power cylinder 2 through power cylinder and propulsion power piston 3 drives whole piston group up, this
When working cylinder feed liquor valve 9,24 close (while the inner chamber of the bottom of vacuum work cylinder 12 shape under the swabbing action of vacuum cock 11
Into vacuum), in the process, working cylinder feed liquor valve 9,24 is closed, the vacuum under up the brought suction function of piston group
Liquid in the upper lumen of working cylinder 12 is inhaled into the inner chamber of hollow connecting rod 4, and top is opened on hollow stem valve 26 and entered in oil pipe
Chamber, until reaching up stroke dead point, completes pumping and draws up stroke；Up stroke to after top dead center, sleeve pipe is bled off pressure, valve on hollow stem
26 close, and under the double action that lower piston group surface pressure difference and piston group are conducted oneself with dignity on acting on, power piston 3 is by hollow
Connecting rod 4 promotes whole piston group descending and progressively comes downwards to startup front position, in the process, working cylinder feed liquor valve 9,24 dozens
Open, stratum liquid is inhaled into the cavity on the top of vacuum work cylinder 12 by working cylinder feed liquor valve 9,24, with piston group by
Step arrive at bottom of stroke, the down stroke that pumping is drawn terminates, hereafter ground installation provide again highly pressurised liquid suppress make and pump it is complete
Into foregoing suction process, pump is restored to startup front position again after bleeding off pressure, and and so on, reaches the purpose of pumping discharge opeing,
When occurring leaking into a small amount of oil gas water in vacuum work cylinder 12 that is poorly sealed and causing the bottom of vacuum cock 11, with pump barrel
Inner carrier group it is descending, the extruding plunger 13 of vacuum cock 11 and make it that synchronous micro- row's plunger pump is opened, and is reached the oil gas of seepage
The effect of water discharge, and then ensure that the vavuum pump is normally run.
In summary, present disclosure is not limited in the above embodiments, and those skilled in the art can be
Propose other embodiments within the technological guidance's thought of the present invention, but these embodiments be included in the scope of the present invention it
It is interior.
Claims (1)
1. a kind of vacuum type fluid power pumping positive displacement pump, it is characterised in that：Including on the power cylinder that is tightly connected successively from top to bottom
Joint (1), power cylinder (2), sealing shroud (6), compression packer (7), working cylinder top connection (8), vacuum work cylinder (12) and
Synchronous micro- row's plunger pump；
It is provided with the power cylinder (2) in a power piston (3), the vacuum work cylinder (12) and is provided with a vacuum cock (11),
The power piston (3) and vacuum cock (11) are linked together by a hollow connecting rod (4), in the middle part of the power piston (3)
It is used for valve (26), the sealing on the hollow stem that connects or block between hollow connecting rod (4) inner chamber and oil pipe inner chamber provided with one
(6) sealing shroud is covered on hollow connecting rod (4) and the sealing shroud (6) has obstructed power cylinder (2) inner chamber and vacuum work cylinder (12)
Also extended through in connection between inner chamber, sealing shroud (6) circumference and pass fluid apertures (5,25), the hollow company provided with multiple power cylinders
Extend upward through in bar (4) bottom week provided with multiple hollow connecting rod inlet openings (10,23), passed through in working cylinder top connection (8) circumference
It is equipped with multiple working cylinder feed liquor valves (9,24)；
The micro- row's plunger pump of synchronization includes plunger (13), back-moving spring (14) and the work being tightly connected successively from top to bottom
Seal nipple (16) upper end under seal nipple (16), oil pipe short circuit (20) and oil pipe short circuit plug (18), the working cylinder under cylinder
It is threadedly coupled with vacuum work cylinder (12), lower end is connected by annular box cupling (17) with oil pipe short circuit (20), the oil pipe short circuit
Seal nipple (16) under a plunger pump valve (19), the working cylinder, annular box cupling (17), oil pipe are provided with the middle part of plug (18) short
Connect the cavity that plug (18), plunger pump valve (19) and oil pipe short circuit (20) surrounded and constitute synchronous micro- row's plunger pump inner chamber,
Plunger (13) upper end is formed with flange, and lower end passes through seal nipple (16) and a plunger plug (21) under working cylinder affixed,
Multiple be used for vacuum work cylinder (12) interior bottom of chamber is also formed with the plunger (13) and working cylinder between seal nipple (16)
The plunger outage (15,22) of portion space and synchronous micro- row's plunger pump intracavity inter-connection, the back-moving spring (14) is enclosed on plunger
(13) on, and the back-moving spring (14) is located under plunger (13) flange and working cylinder between seal nipple (16) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351625.7A CN104912523B (en) | 2015-06-23 | 2015-06-23 | Vacuum type fluid power pumping positive displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351625.7A CN104912523B (en) | 2015-06-23 | 2015-06-23 | Vacuum type fluid power pumping positive displacement pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104912523A CN104912523A (en) | 2015-09-16 |
| CN104912523B true CN104912523B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510351625.7A Active CN104912523B (en) | 2015-06-23 | 2015-06-23 | Vacuum type fluid power pumping positive displacement pump |
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| CN (1) | CN104912523B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535784B (en) * | 2020-04-17 | 2022-03-01 | 四川轻化工大学 | Negative pressure suction and gas lift combined action pump and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651666A (en) * | 1995-12-21 | 1997-07-29 | Martin; John Kaal | Deep-well fluid-extraction pump |
| CN201045341Y (en) * | 2007-04-10 | 2008-04-09 | 邢子晶 | Workover treatment self-help liquor drainage pump |
| CN103821703A (en) * | 2014-01-06 | 2014-05-28 | 北京万普瑞能源技术有限公司 | Underground hydraulic piston pump |
| CN204716209U (en) * | 2015-06-23 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Vacuum type fluid power pumping positive displacement pump |
| CN205154524U (en) * | 2015-11-02 | 2016-04-13 | 乜彦飞 | Hydraulic pressure positive displacement pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR068766A1 (en) * | 2008-10-09 | 2009-12-02 | Cifuentes Carlos Alberto | DEPTH PUMP FOR OIL WELLS |
-
2015
- 2015-06-23 CN CN201510351625.7A patent/CN104912523B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651666A (en) * | 1995-12-21 | 1997-07-29 | Martin; John Kaal | Deep-well fluid-extraction pump |
| CN201045341Y (en) * | 2007-04-10 | 2008-04-09 | 邢子晶 | Workover treatment self-help liquor drainage pump |
| CN103821703A (en) * | 2014-01-06 | 2014-05-28 | 北京万普瑞能源技术有限公司 | Underground hydraulic piston pump |
| CN204716209U (en) * | 2015-06-23 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Vacuum type fluid power pumping positive displacement pump |
| CN205154524U (en) * | 2015-11-02 | 2016-04-13 | 乜彦飞 | Hydraulic pressure positive displacement pump |
Non-Patent Citations (2)
| Title |
|---|
| 低渗透油气井排液技术综述;姚展华等;《石油矿场机械》;20130430;第42卷(第4期);第78-82页 * |
| 页岩气藏大规模体积压裂后井筒快速排液方法优选;廖刚等;《钻采工艺》;20131130;第36卷(第6期);第60-62页 * |
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| CN104912523A (en) | 2015-09-16 |
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Effective date of registration: 20210825 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |