CN104948134B - Memory-type precise quantitative Oil/gas Well underground work agent injected system and method for implanting - Google Patents
Memory-type precise quantitative Oil/gas Well underground work agent injected system and method for implanting Download PDFInfo
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- CN104948134B CN104948134B CN201510370219.5A CN201510370219A CN104948134B CN 104948134 B CN104948134 B CN 104948134B CN 201510370219 A CN201510370219 A CN 201510370219A CN 104948134 B CN104948134 B CN 104948134B
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- 239000003795 chemical substances by application Substances 0.000 claims abstract description 387
- 230000015654 memory Effects 0.000 claims abstract description 176
- 230000001174 ascending effect Effects 0.000 claims abstract description 138
- 239000007924 injection Substances 0.000 claims abstract description 130
- 238000002347 injection Methods 0.000 claims abstract description 130
- 238000007599 discharging Methods 0.000 claims description 76
- 238000001125 extrusion Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 3
- 238000011002 quantification Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 239000003292 glue Substances 0.000 description 49
- 239000007789 gas Substances 0.000 description 30
- 238000012856 packing Methods 0.000 description 19
- 239000012530 fluid Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
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- 238000002156 mixing Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 239000012224 working solution Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
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- 229910052751 metal Inorganic materials 0.000 description 3
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- 238000004445 quantitative analysis Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/06—Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting, e.g. eliminating, the deposition of paraffins or like substances
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/02—Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of memory-type precise quantitative Oil/gas Well underground work agent injected system and method for implanting, the injected system includes ascending pipe and ground compressing device, and one or more groups of injection units are provided with ascending pipe；Every group of injection unit includes the work agent memory of variable volume；Ground compressing device acts in ascending pipe extrudes work agent in the pressure on the work agent memory of variable volume.The present invention discloses a kind of method for implanting of the precise quantitative Oil/gas Well underground work agent injected system using memory-type, by the target location under the quantitative injection well of the agent that works.The injected system of the present invention, using can it is quantitative in advance will be by the way of work agent injection work agent memory, being capable of accurate quantification injection work agent, it is ensured that the accuracy of work agent injection rate；The method for implanting of the present invention, work agent accurate quantification injection target location can be had the accuracy of splendid injection rate and the accuracy of injection phase, it is ensured that optimal injection effect.
Description
Technical field
The present invention relates to a kind of memory-type precise quantitative Oil/gas Well underground work agent injected system, and use the system
Method for implanting, belong to oil and natural gas exploitation field.Here Oil/gas Well refers to the Oil/gas Well of broad sense in oil-gas field development, bag
Include oil well, gas well, the natural gas well, injection well, water injection well, heat extraction by steam injection well, steam-stimulated well, steam injection well, deep-well and
Ultradeep well, horizontal well, high angle hole, directional well, straight well etc..
Background technology
Need to inject work agent to underground in oil-gas field development, to improve downhole production situation.The work agent of underground injection
Including following several classes：
（1）Plugging agent, including glue, cement, drop penetration enhancer；
（2）Reservoir sand consolidating agent；
（3）Valuable work agent, including scale remover, de-plugging agent；
（4）Need the work agent limited the quantity, such as oxidant；
Above-mentioned work agent is injected into Oil/gas Well at present, oil field is all to use from ground to pass through ground injection device（Such as
Pump truck etc.）Work agent is directly injected into Oil/gas Well.By taking the injecting glue of underground as an example, the injection mode employs ascending pipe and is arranged on
The packer two parts at inlet both ends form injecting glue tubing string, top connection operation tubing string to ground, by ground installation to well
Interior injection colloid, colloid by the working string of upper km, the closing annular space formed by packer and ascending pipe, glue are noted again
Enter to outside flow string the target location on annular space and stratum；Packer is to use inflatable packer, packing inlet both ends.It is first
First injection pressure fluid makes amplificate packer expansion setting, wherein controlling overpressure using constant pressure valve, pressure is reached or even is surpassed
That crosses packer sets pressure；Therefore, fluid injection guard system in underground includes liquid injection pipe and confinement system.Confinement system includes packing
Device, inflatable packer need to support the use the bleeder of the constant pressure valve that can make the swollen envelope of packer and retraction.
This injecting glue mode " establishes the completion knot of packing in Chinese invention patent in the outer packing ring of Oil/gas Well filter tubing string
Structure and method（Application number 201410013598.8）" more detailed description has been done, this method is exactly the target to packing ring
Interval injects choked flow medium, forms block ring.This block ring is that fluid is difficult to infiltration even impermeable packing section.This is special
Profit it is also proposed a kind of method, and this method is exactly to set packer at injection interval both ends, then passes through ascending pipe string and setting
Choked flow medium is injected packing ring by the inlet on pipe string.
As shown in figure 1, in Fig. 1：1-1 is ground injection device；1-2 is well head；1-3 is plain filter tubing string；1-4 is
Gravel packing zone；1-5 is to be actually implanted into length；1-6 is design injection length；1-7 is flow control screen casing；1-8 is packing particle；1-
9 be oil-producing formation；1-10 is block ring；1-11 is water-yielding stratum；1-12 is open hole wall；1-13 is working string；1-14 is stirring
Tank.Meanwhile this method for implanting is to be injected by whole pipe string to target interval, general pipe string length is even thousands of in upper km
Rice, choked flow medium enter target interval by so long pipeline, also result in the significant wastage of choked flow medium.In addition, from well head
The method needs of fluid injection set up large-scale Agitation Tank on ground and are stirred liquid processed, should take ample resources and operate inconvenience again.
Above-mentioned injection mode the problem is as follows：
（1）It can not quantify, excessive injection be present and owe amount injection；Excessive injection can cause the agent that worked in down-hole annular
Excessive injection, is impacted to annular space and exploitation aspect, the excessive production process that can then have a strong impact on oil recovery gas production of injection of glue,
Such as colloid injection excessively, glue will enter oil reservoir, influence oil and flowed out from stratum, reduce production efficiency；The amount injection of owing then can not
Reach the operation purpose of injection；
（2）Colloid can be polluted, it is unfavorable that colloidality can be produced along ascending pipe long distance delivery by impurity in working string
Influence；The task performance of working solution is influenceed, for example glueability significantly declines, and unfavorable shadow is produced to the effect of injecting glue operation
Ring；
（3）Working solution is in delivery pipe long distance delivery, and working solution is contaminated and then polluting stratum causes subterranean formation production to decline,
Normal operation to oil recovery and gas production brings adverse effect；
（4）Glue consumption is big, and ground is big with gluing equipment volume, and which injecting glue must be injected by the injected rubber hose of long range,
Cause a large amount of wastes of glue；
（5）Which multilayer simultaneously inject when, again exist can not hierarchical control injection glue amount the problem of.It is because different
Layer, it is necessary to glue amount difference it is very big, in order to reach preferable effect, typically all using layering injecting glue, i.e. one layer of note, it is mobile once
Tubing string, work operations amount is big, and the efficiency for injecting operation is low, it is impossible to meets the requirement of high-efficiency homework.
By taking straight well injecting glue as an example, straight well has five layers, and oil reservoir is thick 3 meters, has three interlayers, and interlayer is respectively 2 meters of thickness, well depth
For 3000 meters, the well is gravel packed well, if rubber ring is highly 2 meters, really effective demand is 20L, but is noted using ground
The mode of glue just needs kilolitre glue, because to consider the glue amount lost on thousands of mitron walls.And which needs ground
By under glue injection well, injection glue accuracy of measurement can not be controlled accurately pumping equipment, easily cause pollution；The dirty east of pipeline inwall on the way
West pollution, such as iron rust can cause to be stained to glue, and chemical agent performance significantly declines；Using prepad fluid and after pad slug formula
Glue is conveyed, just occurs prepad fluid and after pad respectively at glue mutually mixes the problem of.It is once fixed during injecting glue tubing string to drag
Position precision is low, and error is larger, it is impossible to meets the position accuracy demand of underground injection operation；This operating type is once merely able to
Glue is injected into a certain layer, one layer of note needs one layer of dragging, and the construction operation time is longer；Ground glue injection equipment volume is big, note
The operating process for entering operation is complicated.
Except injecting glue operation, there are other working solutions to inject, such as blockages relieving fluid, cleaning mixture, repair liquid, oxidant, such as
Oxidant, the big easy blast of carrying amount, carrying amount is small, can not solve problem again.Therefore, these working solutions are noted to be noted with ground
Enter method and equally exist the problem of needs accurately control injection rate.
Therefore, in order to solve the above problems, it is necessary to design one kind with can realizing accurate quantification injected media and can
Pinpoint work agent injected system and method for implanting.
The content of the invention
The technical problem to be solved in the invention is that the defects of overcoming prior art, there is provided a kind of memory-type is accurate fixed
Gauging gas well underground work agent injected system and its method for implanting.Memory-type precise quantitative Oil/gas Well underground work agent note of the present invention
Enter system, using can quantitatively inject in advance work agent work agent memory by the way of, can accurate quantification injection work agent, really
The accuracy of work agent injection rate is protected, ensures the high efficiency and accuracy of underground work agent injection operation；Work agent will not be caused
Waste, avoid a large amount of wastes of agent of being worked in the liquid injection pipe of tradition injection operation, improve the utilization rate of work agent, reduce
Operating cost；After the completion of operation is injected, reused after can taking out, work agent injected system, which has, repeatedly to be used
The characteristics of, the cost of injection operation is reduced, improves operating efficiency；
The present invention utilizes the method for implanting of memory-type precise quantitative Oil/gas Well underground work agent injected system, will can work
Agent accurate quantification injects target location, has splendid injection accuracy and positional accuracy, it is ensured that optimal injection effect；
And by packer, the agent that will can work insulates the annular space in target location, the channelling of work agent will not occur, ensure that well
Normal production operation down, the layer position beyond target location will not be caused to be influenceed by work agent.
To solve the above problems, the present invention use technical scheme for：
A kind of memory-type precise quantitative Oil/gas Well underground work agent injected system, the injected system include ascending pipe and ground
Face pressue device, ascending pipe is interior to be provided with one or more groups of injection units；The work agent that every group of injection unit includes variable volume is deposited
Reservoir, is arranged on the work agent discharging opening with ascending pipe ft connection on ascending pipe, and discharging opening connects with work agent memory；Ground
Face pressue device acted in ascending pipe in variable volume work agent memory on, higher than the pressure outside ascending pipe
Power, the work agent memory volume of variable volume reduce, and work agent is flowed out to outside ascending pipe through discharging opening.
Work agent memory is carried in each injection unit for the agent injected system that works, is carried in the agent memory that works advance
The work agent quantitatively stored, work agent herein can be liquid and gluey work agent；Ascending pipe is transferred to target position
Postpone, pressure is applied to work agent memory by ground compressing device, makes the work agent in work agent memory through discharging opening
The target location flowing to outside ascending pipe, complete the injection operation of work agent.
The species of the work agent used in the present invention includes following several：
（1）Choked flow medium：It is characterized in that hypotonic or nothing is oozed, its composition includes being not limited to one or more of：It is solidifying
Glue, resin, cement, polymer, drop penetration enhancer；
（2）Reservoir sand consolidating agent, scale remover, de-plugging agent, oxidant；
（3）Acid solution：Its composition includes being not limited to one or more of：Hydrochloric acid, sulfuric acid, hydrogen peroxide.
Technical scheme by work agent be quantitatively stored in advance in work agent memory, by ascending pipe transfer to
Target location is operated agent injection operation, can realize and the accurate quantification for the agent that works is injected, will not cause the wave of work agent
Take, operating type is simply efficient, and operating cost is low.
Preferably, the agent memory that works is bellows memory.The bellows memory can be by rubber, plastics, air-locked
The deformable materials such as cloth are made, and after the pressure by ground compressing device, the volume of bellows memory shrinks will
Its internal work agent is expelled to target location through discharging opening, completes work agent injection operation.
Preferably, bellows memory inside is provided with the catheter with bellows memory outlet, and catheter is provided with more
Individual delivery hole.Reduce after being stressed due to the volume of bellows memory, easily cause after the side wall fitting of bellows memory in it
The work agent in portion can not be completely exhausted out, and therefore, design delivery hole, then while being able to ensure that bellows memory size reduces,
The discharge failure of work agent will not be caused, ensures that the passing away of work agent is unobstructed.Catheter can prevent bellows memory because away from
The part nearer from the port of export first deforms and seals the work agent extrusion that outlet hinders other positions.Mozzle can use metal
Pipe, can also use rubber tube or plastic tube.
Preferably, the agent memory that works is cylinder sleeve and piston Accumulator.The present invention can also select cylinder sleeve and piston type
Work agent is quantitatively stored in cylinder sleeve to deposit work agent, it is transferred to target location with ascending pipe by memory in advance,
By ground compressing device to piston pressurization, piston movement is set to extrude the work agent in cylinder sleeve to target location through discharging opening,
Complete the injection operation of work agent.Cylinder sleeve is made using metal material, and piston both can be metal, can also use rubber, modeling
The materials such as material.Cylinder sleeve keeps sealing state with piston Accumulator in whole operation process, and work agent is merely able to from discharging
Mouth extrusion.
For above-mentioned two class work agent memory, ordinary priority uses bellows memory.Two kinds of memory contrasts, bellows are deposited
Reservoir has the advantage that：
1. capacity is big, bellows memory length can accomplish more than ten meters even tens meters, and cylinder sleeve and piston Accumulator
It is difficult to realize this length.
2. volume can be adjusted flexibly, bellows memory can arbitrarily connect multistage, and architectural limitation, cylinder sleeve and piston type
Memory is difficult to realize.
3. cost is low.Bellows memory is made of rubber is extruded through mould, and cylinder sleeve and piston Accumulator are by gold
Category is made, it is necessary to machine.
4. installation operation is easy.
5. easily safeguard.After bellows memory use, the rubber bag tank that only need to more renew when reusing, and cylinder sleeve and work
Plug memory then needs to clear up cylinder body, and the colloid after particularly cleaning solidifies is relatively difficult.
6. less outside dimension can be accomplished, it is applicable in the down-hole string of small size.
Preferably, discharging opening is provided with constant pressure valve.Ground compressing device applies pressure to work agent memory, when pressure increases
Greatly to after the operating pressure of constant pressure valve, constant pressure valve is opened so that the work agent in work agent memory flows out to mesh from discharging opening
Cursor position.The structure of constant pressure valve is set, it can be ensured that the work agent in work agent memory quantitatively effectively preserves, and will not cause work
Make the spilling of agent, it is ensured that accurate quantification.
Constant pressure valve herein can also select the valve of other modes to replace, such as hydraulic open, air pressure opening, pressure explosion
The valve of diaphragm type replaces realizing the function.
Preferably, the agent memory that works is provided with the inlet for being used for into work agent memory injecting work agent.The note
Check valve is set on entrance, so to ensure that the work agent injected in work agent memory will not flow out from inlet, it is ensured that work
Make the strict accurate quantification of agent.
Preferably, can be accurately positioned in technical scheme using positioner to realize, positioner is fixed
On instrumentation tubes string, positioning is coordinated by the down-hole string of tripping in, ensures the accuracy of injection phase.The mode of generally use
It is that shoulder, conical surface etc. are set in well on tubing string, the shoulder or cone matched with this shoulder, conical surface size is set on working string
Face, locating surface and inlet size design are accurate, you can guarantee is accurately positioned.Working string bottom and downhole tubular can also be used
Column bottom positions, and inlet matches accurately with instrumentation tubes string bottom size and down-hole string distance from bottom size design, can also
Guarantee is accurately positioned.
Preferably, packer is also included in technical scheme, each injection unit discharging opening upside with
The ascending pipe periphery of downside sets a packer, and packer is swollen to be honored as a queen, and can completely cut off the annular space of discharge outlet, be formed
One closing space so that the work agent for being extruded out in work agent memory can only enter target location, and work will not occur
Make the phenomenon of agent channelling, it is ensured that the accuracy of work agent injection operation, avoid production operation of the work agent channelling to underground from bringing
Adverse effect.
The packer used in the present invention can use the forms such as cup packer or inflatable packer.
Preferably, the afterbody for the agent injected system that works installs a set of bleeder.Bleeder is during work agent is injected
Be close, after the completion of operation inject, bleeder can pressure or pressure pulse or it is other make its opening by way of
Open, make to restore balance with external communication, external and internal pressure inside ascending pipe so that packer pressure release bounces back, and lays down in tubing string
Pressure medium, facilitated and instrumentation tubes string.
Bleeder can use the gate gurgle valve of pin shear-type, and the intelligence opened using pressure pulse can also be used voltage-controlled
Derailing switch, wherein votage control switch device can be achieved on what is opened and closed repeatedly.Either single group or multigroup injection unit group
Into work agent injected system, a set of bleeder only is installed in instrument afterbody the function can be achieved.
Ground compressing device that technical scheme uses, including the oil field such as pump truck, fracturing unit truck, cementing truck are conventional
High-pressure fluid injection device；
The present invention discloses a kind of note of the precise quantitative Oil/gas Well underground work agent injected system using memory-type
Enter method, the method for implanting is the work agent memory that the agent that works quantitatively is injected to variable volume in advance on ground, by ascending pipe
Transfer to the target location of underground；Ground compressing device is acted in ascending pipe on the work agent memory of variable volume
, higher than the pressure outside ascending pipe, the work agent memory volume of variable volume reduces, and work agent flows out to note through discharging opening
Enter outside pipe.
The method for implanting concretely comprises the following steps：
（1）In the work agent memory for the variable volume that ground quantitatively injects the agent that works in ascending pipe in advance；According to pre-
The amount of the work agent to set the goal needed for position, injects work agent into work agent memory；
（2）Packer is concatenated respectively in the upper and lower of the discharging opening of ascending pipe；Packer is used in underground target location
Annular space insulates, and avoids work agent from channelling occur, it is ensured that the accuracy of work agent injection；
（3）Ascending pipe is connected to form instrumentation tubes string with being sent into pipe；According to the depth of target location, by ascending pipe with being sent into
Pipe concatenation is instrumentation tubes string, is transferred ascending pipe to target location by being sent into pipe；
（4）Ascending pipe is transferred to underground, makes discharging opening alignment target position, reaches and be accurately positioned；
（5）By ground compressing device, apply pressure into ascending pipe, constantly supercharging, make the pressure inside ascending pipe high
Pressure outside ascending pipe；Now packer swollen envelope under the effect of the pressure, the annular space of target location upper and lower is insulated；
（6）When pressure in ascending pipe reaches the operating pressure of discharging opening constant pressure valve, constant pressure valve is opened, and work agent memory
Interior work agent is flowed out from discharging opening, by the annular space between packer, is injected into target location；The swollen seal pressure of packer is small
In the operating pressure of constant pressure valve, i.e. the first swollen envelope of packer, after pressure continues increase afterwards, constant pressure valve is opened, start-up operation agent
Inject operation；
（7）Pressure extrusion work agent memory in ascending pipe, work agent is set to be extruded through discharging opening until the agent storage that works
The volume of device is no longer reduced, and injection operation is completed.In the presence of packer, work agent is accurately injected in target location, is worked
Channelling phenomenon will not occur for agent, it is ensured that the accuracy of work agent injection and the accuracy of injection rate.
The advantages of the present invention are：
Memory-type precise quantitative Oil/gas Well underground work agent injected system of the present invention, using can quantitatively inject work agent in advance
Work agent memory mode, can accurate quantification injection work agent, it is ensured that work agent injection accuracy, ensure underground work
Make the high efficiency and accuracy of agent injection operation；
Memory-type precise quantitative Oil/gas Well underground work agent injected system of the present invention, it is quantitative in advance in work agent memory
Work agent is stored, transfers to target location and carries out injection operation, the waste of work agent will not be caused, avoids tradition injection operation
Liquid injection pipe in work a large amount of wastes of agent, improve the utilization rate of work agent, reduce operating cost；
Memory-type precise quantitative Oil/gas Well underground work agent injected system of the present invention, after the completion of operation is injected, Neng Gouqu
Reused after going out, work agent injected system has the characteristics of repeatedly using, and reduces the cost of injection operation, improves
Operating efficiency；
The present invention utilizes the method for implanting of memory-type precise quantitative Oil/gas Well underground work agent injected system, will can work
Agent accurate quantification injects target location, has splendid injection accuracy and positional accuracy, it is ensured that optimal injection effect；
And by packer, the agent that will can work insulates the annular space in target location, the channelling of work agent will not occur, ensure that well
Normal production operation down, the layer position beyond target location will not be caused to be influenceed by work agent.
In addition, for a kind of by forming solidifiable after glue main body and the mixing of one or more kinds of cross-linked evocating agents
Glue, having can gradually solidify within a certain period of time.After if this glue is pre-mixed on ground, then G.I.H, Jiu Huizao
Plastic has solidified before implementing to inject operation, can not just be extruded from work agent memory, cause operation to fail.In order to solve this
Individual problem, the present invention discloses a kind of injection of the precise quantitative Oil/gas Well underground work agent injected system using memory-type
Method, the method for implanting are to be used to, to buried target position injecting glue, for convenience of explanation, describe glue main body and a kind of crosslinking below
What initiator was mixed into, glue main body is referred to as A agent, and cross-linked evocating agent is referred to as B agent, and the glue is mixed in proportion by A agent and B agent
Conjunction forms.A agent and B agent are quantitatively injected to the work agent of two different variable volumes respectively according to predetermined ratio in advance on ground
Memory, the outlet of A agent memory and the outlet of B agent memory set the flow regulator of check valve and corresponding proportion respectively, and A agent is deposited
Interconnected between reservoir outlet and the outlet of B agent memory and discharging opening.In addition, the outlet of A agent memory and the outlet of B agent memory
Cut-off liquid can be filled in cavity between discharging opening in advance, is combined with check valve, for separating A agent and B agent, is prevented
A agent and B agent mix in advance before injecting glue operation；It can not also note, only separate A agent and B agent using check valve.Then, by ascending pipe
Transfer to the target location of underground；Ground compressing device is acted in ascending pipe on the work agent memory of variable volume
, higher than the pressure outside ascending pipe, the work agent memory volume of variable volume reduces, first will cut-off liquid extrusion, A agent and
Respective flow regulator is passed through in B agent respectively again, enters air stream enter runner mixing, then mixed work agent by the flow of predetermined ratio
Flowed out to through discharging opening outside ascending pipe.Supplementary notes, if pectin is mixed by glue main body and more than one cross-linked evocating agent
Form, then just need glue main body and each cross-linked evocating agent respectively by the more than two work agent memories of injection.
Brief description of the drawings
Fig. 1 is the structural representation in background technology.
Fig. 2 is the structural representation of single group injection unit in the embodiment of the present invention 1.
Fig. 3 is the injected system structural representation for three groups of injection units that the embodiment of the present invention 1 uses.
Fig. 4 is the structural representation of single group injection unit in the embodiment of the present invention 2.
Fig. 5 is the structural representation of the injected system of single group injection unit in the embodiment of the present invention 2.
Fig. 6 is the underground view before extrusion work agent in the embodiment of the present invention 3 after ascending pipe decentralization in place.
Fig. 7 is the underground view after extrusion work agent in the embodiment of the present invention 3 after ascending pipe decentralization in place.
Fig. 8 is the underground view before extrusion work agent in the embodiment of the present invention 4 after ascending pipe decentralization in place.
Fig. 9 is the underground view after extrusion work agent in the embodiment of the present invention 4 after ascending pipe decentralization in place.
Figure 10 is the injected system structural representation for three groups of injection units that the embodiment of the present invention 7 uses.
Figure 11 is the structural representation of the single group injection unit in the embodiment of the present invention 7.
Figure 12 is the underground view injected in the embodiment of the present invention 8 before operation.
Figure 13 is the underground view injected in the embodiment of the present invention 8 after operation.
Specific embodiment
The present invention will be further illustrated in the following example.
Embodiment 1
The present embodiment is a kind of memory-type precise quantitative Oil/gas Well underground work agent injected system, is illustrated in figure 3 three groups
The work agent injected system of the bellows memory of injection unit, 3-1 manage to be sent into；3-2 is ascending pipe；3-3 is packer；3-4
For discharging opening；3-5 is constant pressure valve；3-6 is catheter；3-7 is work agent memory；3-8 is work agent；3-9 is inlet；3-
10 be bleeder；3-11 pressure transmission holes；3-12 protective cases.The injected system includes ascending pipe and ground compressing device, ascending pipe
Inside it is provided with 3 groups of injection units；Every group of injection unit includes the work agent memory of variable volume, is arranged on ascending pipe and injection
The work agent discharging opening of pipe ft connection, discharging opening connect with work agent memory；Ground compressing device produces in ascending pipe
Act on variable volume work agent memory on, higher than the pressure outside ascending pipe, the work agent memory of variable volume
Volume reduces, and work agent is flowed out to outside ascending pipe through discharging opening, and the ground compressing device that the present embodiment uses passes through for pump truck
Water is injected into ascending pipe and applies pressure.
The agent memory that works is bellows memory.Bellows memory inside is provided with the drain with bellows memory outlet
Pipe, catheter are provided with multiple delivery holes.Discharging opening is provided with constant pressure valve.Work agent memory, which is provided with, to be used to deposit to work agent
The inlet of injection work agent in reservoir.There is protective case outside bellows memory, be typically made of metal thin plate orifice.Every group of note
Enter unit and be designed with pressure transmission hole, tubing string can be smoothly delivered to most for the Fluid pressure that geostatic pressure device injects into tubing string
Bottom.
Fig. 2 is the structural representation of the single injection unit of the present embodiment, in Fig. 7：2-1 is packer；2-2 is drain
Pipe；2-3 is work agent；2-4 is check valve；2-5 is bleeder；2-6 is work agent memory；2-7 is constant pressure valve；2-8 is
Material mouth；2-9 is ascending pipe；2-10 is protective case；2-11 is pressure transmission hole.
Embodiment 2
The present embodiment is a kind of memory-type precise quantitative Oil/gas Well underground work agent injected system, is illustrated in figure 5 one group
The cylinder sleeve of injection unit and the work agent injected system of piston Accumulator, 5-1 is bleeder；5-2 is positioner；5-3 is
It is sent into pipe；5-4 is packer；5-5 is discharging opening；5-6 is constant pressure valve；5-7 is cylinder sleeve；5-8 is work agent；5-9 is piston；5-
10 be check valve；5-11 is sealing screw；5-12 is ascending pipe；5-13 is pressure transmission hole.The injected system include ascending pipe and
Ground compressing device, ascending pipe is interior to be provided with 1 group of injection unit；Every group of injection unit includes the work agent memory of variable volume,
The work agent discharging opening with ascending pipe ft connection on ascending pipe is arranged on, discharging opening connects with work agent memory；Ground adds
Pressure device acted in ascending pipe in variable volume work agent memory on, higher than the pressure outside ascending pipe, can
The work agent memory volume of capacity reduces, and work agent is flowed out to outside ascending pipe through discharging opening, the ground that the present embodiment uses
Face pressue device is pump truck, applies pressure by injecting water into ascending pipe.After the completion of operation is injected, beaten by bleeder
Open the water that will be fed into pipe and be sent into pipe ft connection, shed the pressure being sent into pipe, make removing seal for packer, be easy to feeding pipe to take
Go out underground.The agent memory that works is cylinder sleeve and piston type.Discharging opening is provided with constant pressure valve.The agent memory of working be provided be used for
The inlet of the interior injection work agent of the agent memory that works.Every group of injection unit is designed with pressure transmission hole, for geostatic pressure device to
The Fluid pressure of injection can smoothly be delivered to tubing string bottommost in tubing string.
Fig. 4 is the structural representation of single injection unit used in the present embodiment, in Fig. 4：4-1 is ascending pipe；4-2 is
Packer；4-3 is discharging opening；4-4 is constant pressure valve；4-5 is cylinder sleeve；4-6 is work agent；4-7 is check valve；4-8 is piston；4-
10 be pressure transmission hole.
Embodiment 3
A kind of method for implanting of precise quantitative Oil/gas Well underground work agent injected system using memory-type, the method for implanting
It is the work agent memory that the agent that works quantitatively is injected to variable volume in advance on ground, ascending pipe is transferred to the target position of underground
Put；Ground compressing device acted in ascending pipe in variable volume work agent memory on, higher than ascending pipe outside
Pressure, the work agent memory volume of variable volume reduces, the annular space that work agent is flowed out to outside ascending pipe through discharging opening.
The present embodiment 3 is the work agent injected system using the bellows memory of three groups of injection units described in embodiment 1
Injection operation is carried out, the present embodiment is carried out in the oil recovery horizontal well of bottom water reservoir, multiple in order to prevent the coning of bottom water
In the case that conjunction sieve tube completion and the outer annular space of screen casing are filled with gravel, note work agent instrument with underground quantity and carry gel.Three
Locate target location and form packing, prevent axial channelling of the formation fluid in pit shaft.
As shown in fig. 6, the underground view before operation is injected, in Fig. 6：6-1 is top packer；6-2 is
Gravel packing zone；6-3 is discharging opening；6-4 is ascending pipe；6-5 is target location；6-6 is bellows memory；6-7 is bleeder；
6-8 is open hole wall；6-9 is work agent；6-10 is catheter；6-11 is packer；6-12 is positioner；6-13 is feeding
Pipe.
The method for implanting concretely comprises the following steps：
（1）In the work agent memory for the variable volume that ground quantitatively injects the agent that works in ascending pipe in advance；Each work
The work agent for making injection in agent memory is 22.5L；
（2）Packer is concatenated respectively in the upper and lower of the discharging opening of ascending pipe；
（3）Ascending pipe is connected to form instrumentation tubes string with being sent into pipe；
（4）Ascending pipe is transferred to underground, makes discharging opening alignment target position；It is true by the positioner on instrumentation tubes string
Set the goal position, makes discharging opening corresponding thereto；
（5）By ground compressing device, apply pressure into ascending pipe, constantly supercharging, make the pressure inside ascending pipe high
Pressure outside ascending pipe；The present embodiment is carried out using pump truck into ascending pipe plus by the way of water pressurization；
（6）When pressure in ascending pipe reaches the operating pressure of discharging opening constant pressure valve, constant pressure valve is opened, and work agent memory
Interior work agent is flowed out from discharging opening, by the annular space between packer, is injected into target location；The operating pressure of packer is small
In the operating pressure of constant pressure valve, i.e., when ground compressing device constantly pressurizes, 2MPa being boosted to, inflatable packer is set, it
Reach the operating pressure 2.5MPa of constant pressure valve after pressure constantly increase afterwards, then constant pressure valve, which is opened, is operated agent injection operation；
（7）Pressure extrusion work agent memory in ascending pipe, make work agent extrusion until the volume of work agent memory
No longer reduce, injection operation is completed.In advance to work agent memory in inject work agent when, calculate good berth agent memory and
The residual quantity that can not finally extrude in discharging opening, it is ensured that the accurate quantitative analysis injection of the work agent of injection.
Inject after the completion of operation, depressurized by bleeder, make packer pressure release, be easy to ascending pipe and feeding pipe to be taken from underground
Go out.
As shown in fig. 7, underground view after the completion of operation is injected, in Fig. 7：7-1 is top packer；7-2 is gravel
Stone filling bed；7-3 is discharging opening；7-4 is the bellows memory compressed；7-5 is target location；7-6 is packer；7-7 is
Bleeder；7-8 is open hole wall；7-9 is positioner；7-10 manages to be sent into.3 target location accurate quantification notes in underground
Enter work agent.
Embodiment 4
A kind of method for implanting of precise quantitative Oil/gas Well underground work agent injected system using memory-type, the method for implanting
It is the work agent memory that the agent that works quantitatively is injected to variable volume in advance on ground, ascending pipe is transferred to the target position of underground
Put；Ground compressing device acted in ascending pipe in variable volume work agent memory on, higher than ascending pipe outside
Pressure, the work agent memory volume of variable volume reduces, the annular space that work agent is flowed out to outside ascending pipe through discharging opening.
The present embodiment 4 is the work agent injected system using the bellows memory of three groups of injection units described in embodiment 1
Injection operation is carried out, the present embodiment is carried out in viscous crude well-case perforating straight well, in order to control water outlet and sand control, while does not influence to produce
Oil mass, in the case that annular space is filled with packing particle outside composite screen pipe completion and screen casing, work agent is noted with underground quantity
Instrument carries the polymer of solidifiable, and the polymer is injected in the target location of 3 different depths in particle is insulated, and treats that it is solidifying
After Gu, while establish block ring.
As shown in figure 8, the underground view before operation is injected, in Fig. 8：8-1 is the pipe sleeve borehole wall；8-2 is to send
Enter pipe；8-3 is positioner；8-4 is top packer；8-5 is gravel packing zone；8-6 is discharging opening；8-7 stores for bellows
Device；8-8 is target location；8-9 is packer；8-10 is perforation tunnel；8-11 is work agent；8-12 is bleeder；8-13 is
Catheter；8-14 is sand control screen pipe string.
The method for implanting concretely comprises the following steps：
（1）In the work agent memory for the variable volume that ground quantitatively injects the agent that works in ascending pipe in advance；Each work
The work agent for making injection in agent memory is 20L polymer；The length of required block ring is 2m, and each target location needs poly-
Compound volume is 15L.
（2）Packer is concatenated respectively in the upper and lower of the discharging opening of ascending pipe；The packer is inflatable packer.
（3）Ascending pipe is connected to form instrumentation tubes string with being sent into pipe；
（4）Ascending pipe is transferred to underground, makes discharging opening alignment target position；It is true by the positioner on instrumentation tubes string
Set the goal position, makes discharging opening corresponding thereto；
（5）By ground compressing device, apply pressure into ascending pipe, constantly supercharging, make the pressure inside ascending pipe high
Pressure outside ascending pipe；The present embodiment is carried out using pump truck into ascending pipe plus by the way of water pressurization；
（6）When pressure in ascending pipe reaches the operating pressure of discharging opening constant pressure valve, constant pressure valve is opened, and work agent memory
Interior work agent is flowed out from discharging opening, by the annular space between packer, is injected into target location；The operating pressure of packer is small
In the operating pressure of constant pressure valve, i.e., when ground compressing device constantly pressurizes, 2MPa being boosted to, inflatable packer is set, it
Reach the operating pressure 2.5MPa of constant pressure valve after pressure constantly increase afterwards, then constant pressure valve, which is opened, is operated agent injection operation；
（7）Pressure extrusion work agent memory in ascending pipe, make work agent extrusion until the volume of work agent memory
No longer reduce, injection operation is completed.In advance to work agent memory in inject work agent when, calculate good berth agent memory and
The residual quantity that can not finally extrude in discharging opening, it is ensured that the accurate quantitative analysis injection of the work agent of injection.It is each in the present embodiment
Target location needs 15L polymer, and 20L polymer is previously implanted in each work agent memory.
Inject after the completion of operation, depressurized by bleeder, make packer pressure release, be easy to ascending pipe and feeding pipe to be taken from underground
Go out.After closing well about 24 hours, the polymer in injection packing particle will be frozen into solid automatically, form stable choked flow
Ring.
As shown in figure 9, underground view after the completion of operation is injected, in Fig. 9：9-1 is the pipe sleeve borehole wall；9-2 is feeding
Pipe；9-3 is positioner；9-4 is top packer；9-5 is gravel packing zone；9-6 is discharging opening；9-7 is bellows memory；
9-8 is target location；9-9 is packer；9-10 is perforation tunnel；9-11 is bleeder；9-12 is catheter；9-14 is sand control
Screen casing pipe string.In the polymer of 3 target location accurate quantification injection solidifiables of underground, 3 block rings are formed.
Embodiment 5
On the basis of embodiment 3, another embodiment of the invention is a kind of precise quantitative using memory-type
The method for implanting of Oil/gas Well underground work agent injected system；Work agent in 3 bellows memories of this method is respectively stratum
Sand consolidating agent, cement and hydrogen peroxide；Once decentralization ascending pipe can realize 3 stratum, while be injected separately into 3 kinds of different operatings
The operation of agent, greatly improves operating efficiency, reduces operating cost；
Ground compressing device is pump truck, is pressurizeed into ascending pipe and extrudes work agent out of bellows memory；
Packer uses cup packer；
Other parts are identical with embodiment 3.
Embodiment 6
On the basis of embodiment 4, another embodiment of the invention is a kind of precise quantitative using memory-type
The method for implanting of Oil/gas Well underground work agent injected system；The work agent memory that this method uses stores for cylinder sleeve and piston type
Device, 3 cylinder sleeves are respectively scale remover, gel and resin with the work agent in piston Accumulator；Once pipe and note are sent into decentralization
Entering pipe can realize on 3 stratum, while be injected separately into the injection operation of 3 kinds of different operating agent, greatly improve operating efficiency,
Reduce operating cost；
Ground compressing device is the fracturing unit truck on ground, and fracturing unit truck pressurizes into ascending pipe, makes work agent from cylinder sleeve and piston
Extruded in formula memory；
Packer uses inflatable packer；
Other parts are identical with embodiment 4.
Embodiment 7
The present embodiment is a kind of memory-type precise quantitative Oil/gas Well underground work agent injected system, is three groups as shown in Figure 10
The work agent injected system of the bellows memory of injection unit, 10-1 manage to be sent into；10-2 is ascending pipe；10-3 is packer；
10-4 is discharging opening；10-5 is constant pressure valve；10-6 is catheter；10-7 is A work agent memories；10-8 is A work agent；10-9
For inlet；10-10 is bleeder；10-11 is B work agent memories；10-12 is B work agent；10-13 is flow regulator
A；10-14 is flow regulator B.The injected system includes ascending pipe and ground compressing device, and 3 groups of injections are provided with ascending pipe
Unit；Every group of injection unit includes the A work agent memories and B work agent memories of variable volume, be arranged on ascending pipe with
The work agent discharging opening of ascending pipe ft connection, discharging opening interconnect with A, B work agent memory；Ground compressing device is being noted
Enter acted in pipe in variable volume work agent memory on, higher than the pressure outside ascending pipe, the work of variable volume
Make the reduction of agent memory volume, work agent is flowed out to outside ascending pipe through discharging opening, the ground compressing device that the present embodiment uses
For pump truck, apply pressure by injecting water into ascending pipe.
A, B work agent memory is bellows memory.Bellows memory inside is provided with and bellows memory outlet
Catheter, catheter are provided with multiple delivery holes.A, it is designed with constant pressure valve on B work agent memory.A, B works on agent memory
It is designed with the inlet for injecting work agent into work agent memory.
Figure 11 be the present embodiment single injection unit structural representation, Tu11Zhong：11-1 is packer；11-2 is to lead
Liquid pipe；11-3 is A work agent；11-4 is check valve；11-5 is bleeder；11-6 is A work agent memories；11-7 is level pressure
Valve；11-8 is discharging opening；11-9 is ascending pipe；11-10 is A work agent memories；11-11 is A work agent；11-12 is flow
Adjuster A；11-13 is flow regulator B.
Embodiment 8
A kind of method for implanting of precise quantitative Oil/gas Well underground work agent injected system using memory-type, the method for implanting
It is to be used for oilbearing stratum injecting glue, the glue is mixed in proportion by A agent and B agent.The method for implanting is by A agent on ground
With B agent respectively according to predetermined ratio 1：50 quantitatively inject the work agent memory of variable volume, and the outlet of A agent memory and B agent are deposited
Reservoir outlet sets the flow regulator of check valve and corresponding proportion respectively, and the outlet of A agent memory and the outlet of B agent memory are with going out
Interconnect between material mouth, but to be filled in advance in the cavity between the outlet of A agent memory and the outlet of B agent memory and discharging opening
Separate liquid, for separating A agent and B agent, prevent before injecting glue operation, A agent and B agent mix in advance, cause colloid solidification, block
Discharging opening, colloid can not be injected annular space.Then, ascending pipe is transferred to the target location of underground；Ground compressing device is being noted
Enter acted in pipe in variable volume work agent memory on, higher than the pressure outside ascending pipe, the work of variable volume
Make the reduction of agent memory volume, first extrude cut-off liquid, respective flow regulator is passed through in A agent and B agent respectively again, by predetermined
The flow of ratio enters air stream enter runner mixing, and then mixed work agent is flowed out to outside ascending pipe through discharging opening.This A agent and B
The benefit that agent comes in underground mixed zone：1. A agent and B agent could form the glue of solidifiable within a certain period of time after only mixing；②
If A agent and B agent mix on ground, because the Hou Ning times of glue after mixing are short, just solidify, lead in advance during its tripping in
Cause operation failure.And allow A agent and B agent to mix plastic again in the target location for being lowered into the present embodiment, directly it is injected into target
Position, avoid the problem of glue solidifies in advance.
The present embodiment 8 is the work agent injected system using the bellows memory of three groups of injection units described in embodiment 7
Injection operation is carried out, the present embodiment is carried out in well-case perforating straight well, in order to control water outlet and sand control, while does not influence oil-producing
Amount, in the case that annular space is filled with packing particle outside composite screen pipe completion and screen casing, taken with underground quantity fluid injection instrument
Band A agent and B agent, after A agent and B agent mix in proportion, the glue of solidifiable is formed, 3 different depths are simultaneously in particle is insulated
Establish block ring.
As shown in figure 12, the underground view before operation is injected, Tu12Zhong：12-1 is Wall of Cased Hole；12-2
Managed to be sent into；12-3 is positioner；12-4 is top packer；12-5 is gravel packing zone；12-6 is discharging opening；12-7 is
Bellows memory A；12-8 is target location；12-9 is packer；12-10 is perforation tunnel；12-11 is A work agent；12-12
For bleeder；12-13 is catheter；12-14 is bellows memory B；12-15 is B work agent；12-16 is flow regulator A；
12-17 is flow regulator B.
The method for implanting concretely comprises the following steps：
（1）On ground by A agent and B agent respectively according to predetermined ratio 1：50 quantitatively inject the work agent storage of variable volume
Device, the outlet of A agent memory and the outlet of B agent memory set the flow regulator of check valve and corresponding proportion, A agent memories respectively
Interconnected between outlet and the outlet of B agent memory and discharging opening, but the outlet of A agent memory and B agent memory export and discharged
Cut-off liquid is filled in advance in cavity between mouthful；
（2）Packer is concatenated respectively in the upper and lower of the discharging opening of ascending pipe；The packer is inflatable packer.
（3）Ascending pipe is connected to form instrumentation tubes string with being sent into pipe；
（4）Ascending pipe is transferred to underground, makes discharging opening alignment target position；It is true by the positioner on instrumentation tubes string
Set the goal position, makes discharging opening corresponding thereto；
（5）By ground compressing device, apply pressure into ascending pipe, constantly supercharging, make the pressure inside ascending pipe high
Pressure outside ascending pipe；The present embodiment is carried out using fracturing unit truck into ascending pipe plus by the way of water pressurization；
（6）When pressure in ascending pipe reaches the operating pressure of discharging opening constant pressure valve, each constant pressure valve is opened simultaneously, A agent and B
Agent is flowed out out of respective work agent memory through flow regulator, the glue of solidifiable is mixed into runner, then glue
Flowed out from discharging opening, by the annular space between packer, be injected into target location；The operating pressure of packer is less than constant pressure valve
Operating pressure, i.e., when ground compressing device constantly pressurizes, 2MPa is boosted to, inflatable packer is set, and pressure is continuous afterwards
Reach the operating pressure 2.5MPa of constant pressure valve after increase, then constant pressure valve, which is opened, is operated agent injection operation；
（7）Pressure extrusion work agent memory in ascending pipe, make work agent extrusion until the volume of work agent memory
No longer reduce, injection operation is completed.In advance to work agent memory in inject work agent when, calculate good berth agent memory and
The residual quantity that can not finally extrude in discharging opening, it is ensured that the accurate quantitative analysis injection of the work agent of injection.It is each in the present embodiment
Target location needs 25L glues, needs to carry glue 30L plus loss, according to 1:50 ratios are calculated, it is necessary in different operating agent
0.6L A agent and 29.4L B agent are previously implanted in memory.
Inject after the completion of operation, depressurized by bleeder, make packer pressure release, take out ascending pipe from underground and be sent into and manage.
After closing well about 24 hours, the polymer in injection packing particle will be frozen into solid automatically, form stable block ring.
As shown in figure 13, underground view after the completion of injection operation, Tu13Zhong：13-1 is the pipe sleeve borehole wall；13-2 is
It is sent into pipe；13-3 is positioner；13-4 is top packer；13-5 is gravel packing zone；13-6 is discharging opening；13-7 is capsule
Formula memory A；13-8 is target location；13-9 is packer；13-10 is perforation tunnel；13-11 is A work agent；13-12 is
Bleeder；13-13 is catheter；13-14 is bellows memory B；13-15 is B work agent；13-16 is flow regulator A；13-
17 be flow regulator B.3 target location accurate quantification injection of polymer in underground, form 3 block rings.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
Among the obvious changes or variations that Shen goes out is still in protection scope of the present invention.
Claims (8)
1. a kind of memory-type precise quantitative Oil/gas Well underground work agent injected system, the injected system include ascending pipe and ground
Pressue device；It is characterized in that：One or more groups of injection units are provided with ascending pipe；Every group of injection unit includes variable volume
Work agent memory, is arranged on the work agent discharging opening with ascending pipe ft connection on ascending pipe, discharging opening and work agent storage
Device connects；Ground compressing device acted in ascending pipe in variable volume work agent memory on, higher than ascending pipe
Outside pressure, the work agent memory volume of variable volume reduce, and work agent is flowed out to outside ascending pipe through discharging opening；It is described
The work agent memory of variable volume be bellows memory, the work quantitatively stored in advance is carried in the bellows memory
Agent.
2. memory-type precise quantitative Oil/gas Well underground work agent injected system as claimed in claim 1, it is characterised in that bellows
Memory inside is provided with the catheter with bellows memory outlet, and catheter is provided with multiple delivery holes.
3. the memory-type precise quantitative Oil/gas Well underground work agent injected system as described in claim any one of 1-2, its feature
It is, discharging opening is provided with constant pressure valve.
4. the memory-type precise quantitative Oil/gas Well underground work agent injected system as described in claim any one of 1-2, its feature
It is, work agent memory is provided with the inlet for being used for into work agent memory injecting work agent.
5. memory-type precise quantitative Oil/gas Well underground work agent injected system as claimed in claim 3, it is characterised in that injection
Two or more work agent memories are provided with pipe, carry different work agent respectively, two work agent memories go out
Mouth interconnects with discharging opening, is designed with flow regulator on the agent memory that works, different work agent goes out through flow regulator
After coming, mixed liquor is first mixed to form in proportion, is then then flowed into outside ascending pipe.
6. memory-type precise quantitative Oil/gas Well underground work agent injected system as claimed in claim 4, it is characterised in that injection
Two or more work agent memories are provided with pipe, carry different work agent respectively, two work agent memories go out
Mouth interconnects with discharging opening, is designed with flow regulator on the agent memory that works, different work agent goes out through flow regulator
After coming, mixed liquor is first mixed to form in proportion, is then then flowed into outside ascending pipe.
A kind of 7. memory-type precise quantitative Oil/gas Well underground work agent injection system using as described in any one of claim 1-6
The method for implanting of system, it is characterised in that the method for implanting is the work that the agent that works quantitatively is injected to variable volume in advance on ground
Make agent memory, the work agent memory of the variable volume is bellows memory, and ascending pipe is transferred to the target position of underground
Put；Ground compressing device acted in ascending pipe in variable volume work agent memory on, higher than ascending pipe outside
Pressure, the work agent memory volume of variable volume reduces, and work agent is flowed out to outside ascending pipe through discharging opening.
8. the injection side of the precise quantitative Oil/gas Well underground work agent injected system of memory-type is used as claimed in claim 7
Method, it is characterised in that be the step of the method for implanting：
(1) the bellows memory for quantitatively injecting the agent that works in ascending pipe in advance on ground；
(2) packer is concatenated respectively in the upper and lower of the discharging opening of ascending pipe；
(3) ascending pipe is connected to form instrumentation tubes string with being sent into pipe；
(4) ascending pipe is transferred to underground by being sent into pipe, makes discharging opening alignment target position；
(5) by ground compressing device, apply pressure into ascending pipe, constantly supercharging, make the pressure inside ascending pipe higher than note
Enter the pressure outside pipe；
(6) when the pressure in ascending pipe reaches the operating pressure of discharging opening constant pressure valve, constant pressure valve is opened, and is worked in agent memory
The agent that works is flowed out from discharging opening, by the annular space between packer, is injected into target location；
(7) in ascending pipe pressure extrusion work agent memory, make work agent extrusion until work agent memory volume no longer
Reduce, injection operation is completed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370219.5A CN104948134B (en) | 2015-06-30 | 2015-06-30 | Memory-type precise quantitative Oil/gas Well underground work agent injected system and method for implanting |
| PCT/CN2016/078947 WO2017000622A1 (en) | 2015-06-30 | 2016-04-11 | Storage-type precise quantitative injection system for injection of underground oil or gas well operating agent and injection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370219.5A CN104948134B (en) | 2015-06-30 | 2015-06-30 | Memory-type precise quantitative Oil/gas Well underground work agent injected system and method for implanting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948134A CN104948134A (en) | 2015-09-30 |
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| CN104948134B (en) * | 2015-06-30 | 2018-04-06 | 安东柏林石油科技（北京）有限公司 | Memory-type precise quantitative Oil/gas Well underground work agent injected system and method for implanting |
| CN105221119A (en) * | 2015-10-29 | 2016-01-06 | 安东柏林石油科技（北京）有限公司 | A kind of instrument and method setting up Oil/gas Well underground sand-prevention tube particle flow channel |
| CN108979581A (en) * | 2017-06-05 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of deep-well accurate quantification injecting water plugging string system |
| CN109025883A (en) * | 2017-06-09 | 2018-12-18 | 中国石油化工股份有限公司 | A kind of quick casing remodeling device and method |
| CN109138932A (en) * | 2017-06-28 | 2019-01-04 | 中国石油化工股份有限公司 | A kind of chemical packer segmentation control water completion method of straight well filling combination |
| CN111075398A (en) * | 2018-03-29 | 2020-04-28 | 魏宇骞 | Descaling device for water injection well |
| CN109025906A (en) * | 2018-08-02 | 2018-12-18 | 中国石油天然气股份有限公司 | A kind of quantitative dosing case and a kind of quantitative dosing vehicle |
| CN109488251B (en) * | 2018-11-20 | 2024-03-26 | 中国石油天然气股份有限公司 | Mechanism for presetting dissolution medium and use method |
| CN110792411A (en) * | 2019-11-21 | 2020-02-14 | 冯瑞林 | Double-dissolving definite-quantity blockage-removing production-increasing technology |
| CN114075952B (en) * | 2020-08-21 | 2023-09-26 | 中国石油天然气股份有限公司 | Fine sand fixing tool and method suitable for long well section |
| CN112523737B (en) * | 2020-10-23 | 2022-09-20 | 西安石油大油气科技有限公司 | Oil well acidification process and device for improving oil and gas well yield |
| CN112392439B (en) * | 2020-12-04 | 2022-12-02 | 中国石油天然气股份有限公司 | Underground medicament controlled release device and control method for oil-water well |
| CN114837619B (en) * | 2021-02-01 | 2024-04-30 | 中国石油天然气股份有限公司 | Method and device for removing blockage of gas well |
| CN118187747A (en) * | 2024-05-16 | 2024-06-14 | 东北石油大学三亚海洋油气研究院 | Nanogel underground injection device and method thereof |
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