CN209324284U - Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in a kind of well - Google Patents
Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in a kind of well Download PDFInfo
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- CN209324284U CN209324284U CN201821276977.6U CN201821276977U CN209324284U CN 209324284 U CN209324284 U CN 209324284U CN 201821276977 U CN201821276977 U CN 201821276977U CN 209324284 U CN209324284 U CN 209324284U
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Abstract
Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in the utility model well, it is characterised in that: be by fishing tool, ball-and-seat, drilling tool of going into the well, well head, drilling rod, tap, rotary hose, threeway, high pressure pump truck, pressure sensing control valve, accumulator, air energy-storage non-return valve, well head big four, big tank, gas detecting instrument, automatic ignition device, air compressor machine, greatly repair, safety valve, separation filling motor, rotate self-sealing device, wellhead blowout preventor and exhaust pipe group at.The utility model can dredging de-plugging and underground unfreezing operation to the down-hole string severe leakage of all Oil, Water, Gas wells, can not only be completed at the same time cleaning in high speed jet impact well, but also have the function of being sucked by vacuum pollution outside casing while disposably salvaging.It is the process equipment that most strong, most direct, most easy, the most cheap ultimate oil recovery for solving the outer dredging de-plugging of casing most preferably assist.
Description
Technical field
The utility model belongs to technical field of environment protection equipment, is a kind of suitable for de-plugging outside oil field well dredging and casing
Special technological equipment, in particular to underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in a kind of well.
Background technique
Currently, the traditional underground dredging in oil field both at home and abroad is rinsed in unfreezing operation, it is conventionally employed that liquid is passed through into pump acting
Liquid stream circulation is set up in well afterwards, the silt particle in well is returned the process flow to ground.The technique has the following deficiencies: 1, by
There is accumulation pressure in liquid, since pressure size is directly proportional to liquid specific gravity and liquid-column height.Exist in the underground of several kms
Jet stream can not occur in very big accumulation pressure, fluid, and the raising of pump speed and flow can only improve the carrying capacity of fluid, and
Fluid cannot be made to generate at a distance injection upwards in a liquid, only fluid is sprayed in gaseous environment, at this moment can just go out
The existing effect that flow velocity is higher, spray distance is remoter.It just will appear following situations in the underground sand-wash dredging operation of traditional handicraft:
Operation can only be milled using set in the case where long range sand card occurs after junk in well.Major diameter tool cannot be made again using set milling
When industry, it can only just be buckled to salvaging, sectional flushing.In case of such case, the salvaging work of subsequent well workover engineering in real work
Skill will be very many and diverse, greatly increases the well workover period, even results in oil well and scraps.Due to the presence of accumulation of fluid pressure in well,
Balance the natural pressure on jacket exterior stratum, thus traditional dredging technique can only to playing certain dredging effect in cased well,
And for various pollutions present in stratum outside casing, such as mud contamination, the near wellbore zone flour sand being retained in when drilling well in oil reservoir
Pollution caused by deposition and the mud cake pollution due to mud stone water-swellable generation in stratum caused by filling the water, then will not generate any
Effect.Mid-late oilfield development, due to filling the water for a long time, steam injection operation, frequent Downhole Construction and casing material
With the factors such as the variation on burn into stratum, often occur casing frustrate it is disconnected.Casing, which is frustrated, to cave in outside the casing that disconnected place occurs and can make
Upper and lower casing is displaced, and causes normal oil recovery, power tool that cannot pass through.If not this part silt particle outside casing
It is cleaned to outside well, is unable to righting casing again using collar point tool, then casing is easily broken.If severely deformed herein, neck
The problems such as sharp tool also can not find lower parts casing pipe, at this time can only be using the measure taken out upper sleeve outside well.
Summary of the invention
The utility model overcomes above-mentioned defect, it is therefore an objective to by using gas as working media, in underground
Artificial creation's air column, there is no accumulation pressure in shaft bottom for air column, remote using can produce after liquid pressing in gaseous environment
Strong jeting effect, release can produce explosive force suddenly after gas compression energy storage, generate gaslift in well, provide in a kind of well
Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment.
Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment content Description in the utility model well:
Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in the utility model well, it is characterised in that: be by: beat
Fishing combined tool, ball-and-seat, drilling tool of going into the well, well head, drilling rod, tap, rotary hose, threeway, high pressure pump truck, pressure sensing control valve,
Accumulator, air energy-storage non-return valve, well head big four, big tank, gas detecting instrument, automatic ignition device, air compressor machine, repair greatly,
Safety valve, separation fill motor, platform, rotation self-sealing device, wellhead blowout preventor and exhaust pipe group at being equipped in the front end for drilling tool of going into the well
The fishing tool of eyelet, fishing tool are connect with the ball-and-seat that can be automatically closed, and successively incite somebody to action: wellhead blowout preventor, well head are big by four
Logical and rotation self-sealing device is arranged on well head；Rotation self-sealing device is connect with kelly bar, the tap being arranged outside well；Blowout preventer
Device connect by threeway and fire hose band connection, one end of threeway with high pressure pump truck, the other end of threeway and equipped with pressure sensing control
Air energy-storage non-return valve connection on the accumulator of valve processed；The exit well head big four recycled in well is by rotary hose and entirely
Closing, there is the big tank of automatic separation to connect, and gas detecting instrument and automatic ignition device are equipped on the exhaust pipe of big tank,
Rotary hose is connect with accumulator, air compressor machine, and safety valve is equipped on air compressor machine and separation fills motor.
Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in the utility model well, can be to all Oil, Water, Gas
The dredging de-plugging and underground unfreezing operation of the down-hole string severe leakage of well can be both completed at the same time in high speed jet impact well clear
It washes, and has the function of being sucked by vacuum and pollute outside casing while disposably salvaging.Be solve the outer dredging de-plugging of casing it is most strong,
Most directly, most easy, the most cheap optimal auxiliary process equipment of ultimate oil recovery.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in well；
In figure: 1 be fishing tool, 2 be ball-and-seat, 3 be go into the well drilling tool, 4 be well head, 5 be drilling rod, 6 be tap, 7 be
Rotary hose, 8 be threeway, 9 be high pressure pump truck, 10 be pressure sensing control valve, 11 be accumulator, 12 be air energy-storage non-return valve,
13 it is well head big four, 14 be big tank, 15 be gas detecting instrument, 16 be automatic ignition device, 17 be air compressor machine, 18 is overhaul
Vehicle, 19 be safety valve, 20 be separation fill motor, 21 be platform, 22 be rotation self-sealing device, 23 be wellhead blowout preventor, 24 be exhaust
Pipe.
Specific embodiment
The outer de-plugging equipment of underbalance injection stream dredging vacuum suction set is achieved in that knot below in the utility model well
Attached drawing is closed to illustrate.
See Fig. 1, underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in the utility model well, is by salvaging work
Has 1, ball-and-seat 2, drilling tool 3 of going into the well, well head 4, drilling rod 5, tap 6, rotary hose 7, threeway 8, high pressure pump truck 9, pressure sensing control
Valve 10 processed, accumulator 11, air energy-storage non-return valve 12, well head big four 13, big tank 14, gas detecting instrument 15, automatic ignition dress
Set 16, air compressor machine 17, the 18, safety valve 19 that repairs greatly, separation filling motor 20, platform 21, rotation self-sealing device 22, wellhead blowout preventor 23
Formed with exhaust pipe 24, in the fishing tool 1 of the front end for drilling tool 3 of going into the well installation eyelet, fishing tool 1 with can be automatically closed
Ball-and-seat 2 connects, and successively incites somebody to action: wellhead blowout preventor 23, well head big four 13 and rotation self-sealing device 22 are arranged on well head 4；Rotation
Turn self-sealing device 22 and is connect with kelly bar 5, the tap 6 being arranged outside well；Wellhead blowout preventor 23 is connect by threeway 8 with rotary hose 7,
One end of threeway 8 connects high pressure pump truck 9, is responsible for water supply；The other end of threeway 8 is connected to the storage equipped with pressure sensing control valve 10
Air energy-storage non-return valve 12 on energy device 11, is responsible for gas supply；The exit recycled in well is from 13 two sides valve of well head big four
Be connected on the totally-enclosed big tank 14 with automatic separation by rotary hose 7, with prevent the gas and water returned out out of well, oil,
Silt particle pollute ground environment, on the exhaust pipe 24 of big tank 14 be equipped with detection methane and hydrogen sulfide function gas detecting instrument 15 and
Automatic ignition device 16, when toxic gas or exceeded flammable explosive gas can automatic ignition eliminate its harm, it is ensured that construction
It can be normally carried out；Rotary hose 7 is connect with accumulator 11, air compressor machine 17, and air compressor machine 17 is equipped with safety valve 19 and separation fills electricity
Machine 20, preparation is ready.
Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in the utility model well, is in gas in underground and owes flat
Under the conditions of weighing apparatus, realization can produce dredging inside and outside down-hole casing, release near wellbore zone pollution, gas handles up and dredges remote well formation pore
And the process flow of four kinds of functions of the gas displacement of reservoir oil: following processing steps are used:
1, it opens air compressor machine 17 and carries out gas storage pressurization, when reaching design pressure, pressure sensing control valve 10 is automatically turned on,
By 3 bore passage positive opening underground check valve 2 of drilling tool, sprays into gas in down-hole annular and does liquid working in gas-lift well,
Gas volume is contracted to 1 percent by pressure, and the explosive force that moment generates when gas passes through ball-and-seat 2 impacts liquid in well,
Exclude liquid to outside well rapidly, air pressure is in gas under-balanced state in well, pushes liquid to generate injection by compressed gas
Stream carries out dredging to underground, and the starting of high pressure pump truck 9 supplies water, injected into well in drilling tool 3 simultaneously with gas, pass through fluid-mixing at this time
Total pressure determine range and effect, accumulator 11 and 17 discharge capacity of air compressor machine, volume is greater than 5 times of well depth volume or more, gas-water ratio
Example is 3:7, and the switching of this process should be completed in moment；The flow velocity of gas is 15.24 meter per seconds, and underground silt particle and liquid generate movement,
Two volumes of solid, liquid are less than gas volume 30%, and the air-water mixture injected during upper return returns out well in the form to gasify
Outside；Shaft bottom does not accumulate pressure and keeps spraying in well under vaporized state.1 megapascal of the every increase of fluid can produce 100 meters of ranges,
Underground pushes high pressure water to spray in gaseous environment and generates very-long-range jet stream, realizes underground dredging, unfreezing；
2, stop supplying water into well after the completion of dredging work, supply, accumulator 11 starts energy storage, when liquid level rises in well
Flood underground check valve 2, after 20-50 meters, accumulator 11 is opened, 1.5 times of moment supply casing and 3 annular space volume of drilling tool into well
High pressure gas, elect well in this section of liquid rise rapidly as liquid piston, when there is acceleration in piston uphill process,
Immediately close off pressure sensing control valve 10 on accumulator 11, make shaft bottom generate vacuum effect, at this time liquid piston to well inner sleeve outside
Generate strong pumping effect, the pollution that the precipitating of mud and Extra-fine sand rock that when drilling well leaks into stratum generates near wellbore zone
It is thoroughly removed；
3, close floor outlet by force toOilLayer injection extra-high, while all liq in well being pushed back togetherOilLayerIn, designed when reachingOilOutlet is opened after layer rapidly to bleed off pressure, arranges all gas in oil reservoir with the mud cake after liquid and water-sensitive
Out outside well.Increase oil pump capacity the above process 5-10 times repeatedly, dramatically increases water injection well water injection rate, reduces water injection pressure, utilize
Gas permeability is better than liquid, to formation opener apart from farther, dredges remote well formation pore by the gas mode of handling up；
4, water drive oil is replaced with gas drive, gas will not pollute.
Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in the utility model well, not only can solve over long distances
Sand card can also remove set milling process from, only if it were not for hard card can also be removed from because all work flows that the back-off of sand card is salvaged, make
Workover process becomes very comfortable.Motionless any tubing string and tool will generate vacuum suction on this basis, to cover outer dredging,
Oil layer unblocking has good effect.
The utility model being capable of dredging de-plugging and underground unfreezing to the down-hole string severe leakage of all Oil, Water, Gas wells
Operation can not only be completed at the same time cleaning in high speed jet impact well, but also have and pollute disposable simultaneously salvage outside vacuum suction casing
Function.It is most strong, most direct, most easy, the most cheap optimal auxiliary of ultimate oil recovery for solving the outer dredging de-plugging of casing
Process equipment.
Claims (1)
1. underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in a kind of well, it is characterised in that: be by fishing tool
(1), ball-and-seat (2), drilling tool of going into the well (3), well head (4), drilling rod (5), tap (6), rotary hose (7), threeway (8), high-pressure pump
Vehicle (9), pressure sensing control valve (10), accumulator (11), air energy-storage non-return valve (12), well head big four (13), big tank
(14), gas detecting instrument (15), automatic ignition device (16), air compressor machine (17), repair greatly (18), safety valve (19), separation fill
Motor (20), platform (21), rotation self-sealing device (22), wellhead blowout preventor (23) and exhaust pipe (24) composition, in drilling tool of going into the well (3)
Front end be equipped with the fishing tool (1) of eyelet, fishing tool (1) connect with the ball-and-seat (2) that can be automatically closed, successively general:
Wellhead blowout preventor (23), well head big four (13) and rotation self-sealing device (22) setting well head (4) above；It rotates self-sealing device (22)
It is connect with kelly bar (5), the tap (6) being arranged outside well；Wellhead blowout preventor (23) is connect by threeway (8) with rotary hose (7),
One end of threeway (8) is connect with high pressure pump truck (9), the other end of threeway (8) and the accumulation of energy that pressure sensing control valve (10) are housed
Air energy-storage non-return valve (12) connection on device (11)；The exit well head big four (13) recycled in well passes through rotary hose
(7) it is connect with the totally-enclosed big tank (14) with automatic separation, gas is equipped on the exhaust pipe (24) of big tank (14) and is examined
Instrument (15) and automatic ignition device (16) are surveyed, rotary hose (7) is connect with accumulator (11), air compressor machine (17), in air compressor machine (17)
It is equipped with safety valve (19) and separation fills motor (20).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821276977.6U CN209324284U (en) | 2018-08-09 | 2018-08-09 | Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in a kind of well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821276977.6U CN209324284U (en) | 2018-08-09 | 2018-08-09 | Underbalance injection stream dredging vacuum suction covers outer de-plugging equipment in a kind of well |
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| CN209324284U true CN209324284U (en) | 2019-08-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825155A (en) * | 2018-08-09 | 2018-11-16 | 鞍山万维科技有限公司 | Underbalance injection stream dredging vacuum suction covers outer method for removing blockage in a kind of well |
-
2018
- 2018-08-09 CN CN201821276977.6U patent/CN209324284U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825155A (en) * | 2018-08-09 | 2018-11-16 | 鞍山万维科技有限公司 | Underbalance injection stream dredging vacuum suction covers outer method for removing blockage in a kind of well |
| WO2020030043A1 (en) * | 2018-08-09 | 2020-02-13 | 鞍山万维科技有限公司 | High-pressure air ramming device for oil well, and method |
| CN108825155B (en) * | 2018-08-09 | 2024-03-29 | 上海万维亿通装备制造有限公司 | Method for removing blockage outside underground unbalanced jet dredging vacuum suction sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200730 Address after: Room 1, floor 1, building 9, No. 1628 Lizheng Road, Lingang New Area, Pudong New Area, Shanghai 201306 Patentee after: Shanghai wanwei Yitong Equipment Manufacturing Co., Ltd Address before: 114000, No. 211, office building, Tong Zun Science Park, No. 276, Sifangtai Road, Tiexi District, Anshan, Liaoning Province, 2 Patentee before: ANSHAN WANWEI TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |