CN202157779U - Double-layer integrated dispersion packer provided with bridge-type hole channel - Google Patents
Double-layer integrated dispersion packer provided with bridge-type hole channel Download PDFInfo
- Publication number
- CN202157779U CN202157779U CN201120279942XU CN201120279942U CN202157779U CN 202157779 U CN202157779 U CN 202157779U CN 201120279942X U CN201120279942X U CN 201120279942XU CN 201120279942 U CN201120279942 U CN 201120279942U CN 202157779 U CN202157779 U CN 202157779U
- Authority
- CN
- China
- Prior art keywords
- water filling
- main channel
- bridge
- water injection
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a double-layer integrated dispersion packer provided with a bridge-type hole channel, comprising a dispersion main body, a water injection main channel, the bridge-type hole channel, a seal component, an upper layer water injection channel and a lower layer water injection channel, wherein the dispersion main body is a hollow cylinder; one end of the cylinder is a water injection end and the other end of the cylinder is a seal end; the water injection main channel extends for a certain distance from a water injection end of the water injection main channel to one side of a seal end of the water injection main channel; one section of the water injection main channel, which is adjacent to the water injection end, is a front half section; one section of the injection main channel, which is adjacent to the seal end, is a back half section; the bridge-type hole channel extends for the same certain distance from the water injection end of the water injection main channel to one side of the seal end, and the bridge-type hole channel is provided with a branch channel which is communicated with the back half section of the water injection main channel; the seal component can be arranged between the front half section and the back half section of the water injection main channel and is used for water-tightly separating the water injection main channel from the middle part; the upper layer water injection channel is communicated with the front half section of the water injection main channel and the lower layer water injection channel is communicated with the back half section of the water injection main channel. With the adoption of the packer provided by the utility model, the water can be injected into double layers at the same time when the water is injected, the water is injected into one layer and a test is carried out on the other layer in the process of testing, so that the work efficiency is improved.
Description
Technical field
The present invention relates to a kind of water injection well and use packer, relate in particular to a kind of double-deck integrated branch of double-layer water injection and the water filling of one deck test one deck of can realizing and annotate packer.
Background technology
In water injection well; Can adopt multiple plugging device; Plugging device commonly used has Y341 type packer, injects the water salinity height at present, and scale formation is serious in the oil pipe; Well-flushing workload and pulling workload are bigger, and instruments such as concentric integrated class and hydraulic running and pulling are suitable for and have satisfied not the growing water injection technology requirement in this oil field.Great majority divide the error ratio of annotating actual injection rate of each layer of well and theoretical injection allocation amount bigger, thereby can not well satisfy the purpose of the oil-field flooding displacement of reservoir oil.Moreover present most water injection well layering is thinner, and interlamellar spacing is smaller, so just cause some conventional instruments can not be applicable to the multilayer subdivision of reservoir water injection technology of little interlayer, oil sheet, and interlayer interference is bigger.Because of various complicated factors and deposit, allocate each layer position injection rate of a bite well fully, making it to reach reasonable request often needs pulling repeatedly, test, the adjustment for several times could success, probably need 3-4 days time.The task of dropping-fishing test is very big.Eccentric integrated water distribution packer has solved subdivision of reservoir injection allocation problem, and pressure, temperature, flow rate test can both satisfy technological requirement.But also have the contradiction that can't overcome: i.e. must stop during zonal testing to annotate, water-injection efficiency reduces.
Summary of the invention
In order to solve the problem that prior art exists; The purpose of this invention is to provide a kind of plugging device that can carry out water filling and the water filling of one deck test one deck at bilayer; It is for being applicable to well depth≤3500 meter, 5 1/2, and " above sleeve pipe hole condition is used for water injection well subdivision of reservoir water injection technology technology.The combination of special test equipment coupling sealer is used, and once goes into well and can successively test envelope, up test successively down, measures the individual layer flow, can measure two force value without the layering of pulling water distribution plug, and the zonal testing process does not stop to annotate, and interlayer does not disturb mutually.
For this reason, the invention provides a kind of double-deck integrated branch and annotate packer, comprising with bridge-type hole path:
Divide and annotate body, it is a hollow cylinder, and a said columniform end is the water filling end, and the other end is a sealed end;
The water filling main channel, it extends certain distance from said water filling end to sealed end one side, said water filling main channel be preceding half section near a section of said water filling end, be the second half section near a section of said sealed end;
The bridge-type hole path, it extends certain distance from said water filling end to sealed end one side equally, and said bridge-type hole path has the divergent passage of the second half section that is communicated to said water filling main channel;
Containment member, it can be arranged between preceding half period and the second half section of said water filling main channel, and said water filling main channel is separated from middle watertightness ground;
The upper strata waterflood path, it is communicated with preceding half section of said water filling main channel, lower floor's waterflood path, its second half section with said water filling main channel is communicated with.
Preferably; Described double-deck integrated branch with bridge-type hole path is annotated in the packer; Divide the periphery of annotating intrinsic said water filling main channel to be provided with water filling core pipe; Said water filling core pipe is communicated with said water filling main channel, and said water filling core pipe is provided with at least two delivery ports, is distributed in preceding half section position with the second half section of corresponding said water filling main channel respectively.
Preferably; Described double-deck integrated branch with bridge-type hole path is annotated in the packer; The below tube wall that said branch is annotated body is provided with delivery port, and said delivery port is communicated with the preceding half section delivery port that is positioned at said water filling main channel on the said water filling core pipe through water nozzle.
Preferably; Described double-deck integrated branch with bridge-type hole path is annotated in the packer; The passage that waterflood path extension tube attached and support form; It is communicated with the waterflood path that inner core tube forms with the outer core pipe of packer, and said delivery port is through the delivery port of the second half section that is positioned at said water filling main channel on water nozzle and the said water filling core pipe and the channel connection of said waterflood path extension tube attached and support formation.
The integrated branch of bilayer of the present invention is annotated packer, and a packer can be realized the water filling of two layers, or one deck water filling, and one deck detects.If in the stratum, use the integrated branch of a plurality of bilayers of the present invention to annotate packer, separate water filling when then can realize multilayer, or detect multilayer the time.Greatly improved efficient.
The present invention plays a part the packing water layer, bears pressure in the down-hole.The down-hole construction operation at first guarantees fully seat envelope of packer, and water layer is separated, and guarantees that the upper and lower layer of work progress do not gang up.But pulling simultaneously, test have increased the bridge-type hole path, in the time of guaranteeing to test certain interval well, do not influence the normal water filling of other layer.
Can bear high temperature, operations involving high pressure.In the water filling work progress, sealing performance is stable, and it is low to have a seal pressure,
Advantages such as life cycle is long, and antiseptic property is good.This packer also possesses the function of two injection well downhole flow regulators except that the basic function and advantage that possess Y341 type packer.When utilizing certain interval of sealer test, the bridge-type hole can be with the upper and lower perforation of oil pipe.
The present invention has increased the bridge-type water injection hole, and when testing certain interval, fluid is gone into other water filling layer through the bridge-type orifice flow, and other layer is implemented normal water filling.Do not influence other target zone water filling when both testing.And testing efficiency improves 2 times.
Description of drawings
Fig. 1 is the overall schematic that the integrated branch of bilayer of the present invention is annotated packer;
Fig. 2 is 5 times of enlarged diagrams of part 1 among Fig. 1.
Wherein Reference numeral is following:
Body 3 guide waies 4 upper and lower water nozzle 5 blanking plugs were annotated in 1 top connection in 2 minutes
6 water filling core pipes, 7 lower linking tube main bodys, 8 supports, 9 guide way rigid connectors
10 waterflood path extension tube attached, 11 packer innermost tubes, 12 water filling spools, 13 outer core tube heads
14 outer core pipe 15Y341 packer packings are at a distance from parts
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description, can implement according to this with reference to the manual literal to make those skilled in the art.
As depicted in figs. 1 and 2, round tubular top connection 1 is a standard A PI oil pipe thread with Y341 packer lower contact 15, and upper and lower joint screw thread is connected with oil pipe and other instruments respectively, and by the design matching tool, the group lower tubular column is gone into well.The round tubular top connection 1 of band box divides notes body 2 to be threaded with the garden tubular shape; Tubular shape divides notes body 2 to fix with lower linking tube main body 7 screw threads again; Water filling core pipe 6 welds one with dividing notes body 2, is eccentric main body, forms three passages; Blanking plug and two bridge-type holes, dividing orifice blanking plug passage is eccentric structure.Support 8 one that is threaded with guide way rigid connector 9, it is fixing that guide way 3 leans on shear pin to connect with the guide way rigid connector.The guide way rigid connector is connected fixing with packer inner core tube API, divide notes main body 2 to fix with 7 screwed connections of lower linking tube main body, and lower linking tube main body 7 utilizes shear pin to be fixedly connected with waterflood path extension tube attached 10.Waterflood path extension tube attached 10 is threaded with outer core tube head 13; Outer core tube head is fixing with outer core pipe screw thread, and outer core tube head and inside and outside core pipe belong to the Y341 inner body, and end thread is docked with dividing the notes instrument; Form the integrated branch of bridge-type and annotate packer, extensive use subdivision of reservoir water filling hole condition.When setting, from the oil pipe pressurization, liquid flows in the piston through inner core tube 11, along with interior pressure constantly increases, and piston stroking upward, the compression packing element is accomplished 15 envelopes of Y341 packer.Divide and annotate structure, water filling liquid gets into blanking plug 5 through water filling core pipe 6 inboard aperture passages, and water filling liquid in upper strata is got into by water filling core pipe 6 and goes up water nozzle 4; The branch of flowing through is annotated body 2 entering upper strata target zones; Water nozzle 4 under lower floor's water filling liquid is got into by water filling core pipe 6, waterflood path extension tube attached of flowing through 10 and the passage that support 8 forms get into the waterflood path that outer core pipe 14 of packer and inner core tube 11 form; Go out from Y341 packing element lower end side orifice flow, get into lower floor's target zone.Wherein divide notes body 2 to design bypass passageways, can realize in the zonal testing process, normal water filling of other layer when testing certain interval, water-injection efficiency improves greatly, and tester is once gone into well can test two pressure.8 pairs of testers of support are spacing.Guide way utilizes on the shear pin fixed guide body fixed connecting piece, in pulling blanking plug 5 allotment multi-zone flow regulatings, to the throw in catcher guiding, is convenient to accurate pulling location.Lower linking tube main body 7 has the deblocking shear pin to be connected with waterflood path extension tube attached 10, and during the upper lifting pipe post, inner core tube 11 is up, cuts off the deblocking shear pin, and Y341 separates inside sealing mechanism and unlocks, and packing element thoroughly discharges return, accomplishes deblocking.Guide way rigid connector 9 forms seal channel with waterflood path extension tube attached 10 and water filling spool 12, and the sleeve pipe pressurization can realize water filling spool 12 unlatching or closing functions, accomplishes the backwash function.
The double-deck integrated branch of bridge-type hole path is annotated the packer construction characteristics: can bear high temperature, operations involving high pressure.Advantages such as in the water filling work progress, sealing performance is stable, and it is low to have a seal pressure, and life cycle is long, and antiseptic property is good.This packer also possesses the function of two injection well downhole flow regulators except that the basic function and advantage that possess Y341 type packer.Increased the bridge-type hole path, during certain interval of sealer test, the bridge-type hole can be with the upper and lower perforation of oil pipe.What inner seal adopted is heatproof, withstand voltage, anti-wear performance better seal circle.Guaranteed that the double-deck integrated branch notes of bridge-type eccentric packer has excellent sealing performance.Wherein an oil jacket through channel has been formed in water nozzle and the observing and controlling of branch notes body on water filling core pipe side opening and the blanking plug, can realize the upper strata water filling; And the inner via hole of water filling core pipe and packer inner core is the water filling main channel, and wherein packer inner core tube and the empty lower floor's waterflood path that forms of outer core pipe ring are shared with the anti-flushing well passage, can realize lower floor's water filling and full well anti-flushing well.It is that regular screw threads connect two ends oil pipe thread API screw thread that the double-deck integrated branch of bridge-type hole path is annotated the inner button-type that connects of packer.
The double-deck integrated branch of bridge-type hole path is annotated the packer operating principle: it is the Y341 packer that the integrated eccentric branch of this novel bridge-type is annotated the packer lower end, and seat envelope deblocking mode and Y341 are identical.All be to adopt pressurization in the oil pipe, packer setting, upper lifting pipe post deblocking mode.Operating principle: from oil pipe pressurization, packer set, upper lifting pipe post deblocking.During normal multi-zone flow regulating, allocate water nozzle, utilize throw in catcher to carry out the pulling operation.After the blanking plug of having allocated water nozzle is thrown in successfully, realize normal multi-zone flow regulating.From the oil pipe water filling, supernatant liquid is chewed through water and after throttling, is got into the direct upward water filling layer that injects of oil jacket annular space.Lower floor's liquid is chewed the waterflood path of flowing through, well-flushing passage through following water, flows out from the lock tube side opening to get into the water layer of making a bet, and water layer is implemented the water filling operation to making a bet.Realize the purpose that double-layer separate is annotated.
The bridge-type water injection technology: increased the bridge-type water injection hole, when testing certain interval, fluid is gone into other water filling layer through the bridge-type orifice flow, and other layer is implemented normal water filling.Do not influence other target zone water filling when both testing.And testing efficiency improves 2 times.
Measuring technology is used: sealer carries special pressure gauge respectively or flow counts well, from lower to upper test successively.Test process, interlayer does not disturb mutually; When testing certain interval, do not influence the normal water filling of other interval yet.Integrated two the sealer A/B of coupling that need of off-centre successively test.Can test two pressure of oil pipe and target zone simultaneously.(sealer A records integrated eccentric last water filling stressor layer and the tubing pressure of annotating packer that divide of bridge-type, and B records make a bet aquifer pressure and tubing pressure)
The double-deck integrated branch of novel bridge-type hole path is annotated the packer construction claim; The integrated branch of this novel bridge-type is annotated this packer of packer except that the basic function and advantage that possess Y341 type packer; The function that also possesses two injection well downhole flow regulators, the integrated branch of bridge-type is annotated packing can realize the double-layer separate notes, can realize the anti-flushing well function simultaneously; Can pressurize from sleeve pipe, open the flushing valve passage; Eccentric agent structure can realize the allotment operation, carries out pulling, test jobs, can realize random layer test and pulling blanking plug; Increased the bridge-type hole path on the eccentric main body, the upper and lower interval of oil pipe can have been connected, zonal testing does not stop to annotate, and improves water-injection efficiency; Utilize special test equipment and sealer to be used in combination when testing certain interval, fluid is gone into other water filling layer by the bridge-type orifice flow, and other layer is implemented normal water filling.Do not influence other target zone water filling when both testing, precision is high, and testing efficiency improves 2 times; Sealer carries special pressure gauge respectively or flow counts well, test successively from lower to upper, and test process, interlayer does not disturb mutually.Integrated two the sealer A/B of coupling that need of off-centre successively test.Measuring technology can realize testing seal about packer, formation pressure test, reach the individual layer flow rate test; The zonal pressure test is raised the efficiency 2 times without the pulling water distribution plug; Each laminar flow amount of stratified flow rate test directly obtains, and absolute error is superposition not, has improved and has surveyed the accuracy of transferring efficient and data;
One of the characteristic of said the utility model this packer is except that the basic function and advantage that possess Y341 type packer; The function that also possesses two injection well downhole flow regulators, the integrated branch of bridge-type is annotated packing can realize the double-layer separate notes, can realize the anti-flushing well function simultaneously; Can pressurize from sleeve pipe, open the flushing valve passage;
The two eccentric agent structures of its characteristic of said the utility model can realize the allotment operation, carry out pulling, test jobs, can realize random layer test and pulling blanking plug;
Three of its characteristic of said the utility model is to have increased on the eccentric main body bridge-type hole path, can the upper and lower interval of oil pipe be connected, and zonal testing does not stop to annotate, and improves water-injection efficiency;
When three of its characteristic of said the utility model was to utilize special test equipment and sealer combined test interval, fluid was gone into other water filling layer through the bridge-type orifice flow, and other layer is implemented normal water filling.Do not influence other target zone water filling when both testing, precision is high, and testing efficiency improves 2 times;
Sealer carries special pressure gauge respectively or flow counts well, test successively from lower to upper, and test process, interlayer does not disturb mutually.Integrated two the sealer A/B of coupling that need of off-centre successively test.Measuring technology can realize testing seal about packer, formation pressure test, individual layer flow rate test;
Three of its characteristic of said the utility model is the zonal pressure test without the pulling water distribution plug, and each laminar flow amount of stratified flow rate test directly obtains, and absolute error is superposition not, has improved and has surveyed the accuracy of transferring efficient and data;
The present invention is applicable to well depth≤3500 meter, and 5 1/2 " above sleeve pipe hole condition, one-trip string can be realized 3-8 layer multi-zone flow regulating, have solved the subdivision of reservoir water filling and have tested difficult problem.The double-deck integrated branch of bridge-type hole path is annotated packer and is played a part the packing water layer in the down-hole, bears pressure, but pulling simultaneously, test has increased the bridge-type hole path; In the time of guaranteeing to test certain interval well; Do not influence the normal water filling of other layer, can be used for the water filling of water injection well subdivision of reservoir, convenient test.The combination of special test equipment coupling sealer is used, and once goes into well and can successively test envelope, up test successively down, measures the individual layer flow, can measure two force value without the layering of pulling water distribution plug, and zonal testing does not stop to annotate, and interlayer does not disturb mutually.The double-deck integrated branch of bridge-type hole path is annotated the packer device except that the basic function and advantage that possess Y341 type packer, also possesses the function of two injection well downhole flow regulators, and the integrated branch of bridge-type is annotated packing can realize the double-layer separate notes, can realize the anti-flushing well function from the sleeve pipe pressurization simultaneously.Increased the bridge-type hole path on the eccentric main body, can the upper and lower interval of oil pipe have been connected, zonal testing does not stop to annotate, and improves water-injection efficiency; Do not influence other target zone water filling when both testing, precision is high, and testing efficiency improves 2 times; Sealer carries special pressure gauge respectively or flow counts well, test successively from lower to upper, and test process, interlayer does not disturb mutually.Integrated two the sealer A/B of coupling that need of off-centre successively test.Its measuring technology of the double-deck integrated branch notes of bridge-type hole path packer can realize testing seal about packer, formation pressure test (measuring oil pipe internal pressure and strata pressure simultaneously), (each laminar flow amount directly obtains stratified flow rate test; Absolute error is superposition not, has improved and has surveyed the accuracy of transferring efficient and data).
Main feature of the present invention is: the double-deck integrated branch of bridge-type hole path is annotated packer, except that the basic function and advantage that possess Y341 type packer, also possesses the function of two injection well downhole flow regulators, and promptly a packer can divide notes two intervals.Eccentric main body has the bridge-type hole path, and (pressure and flow) do not influence other interval water filling when testing certain interval, and testing efficiency is high.
Operating principle: oil pipe pressurization packer set, upper lifting pipe post deblocking.During normal injection allocation, supernatant liquid is chewed to inject through water and is gone up the water filling layer.Lower floor's liquid is chewed to the water layer of making a bet through following water.Occur clogging in the work progress,, realize the anti-flushing well function from the sleeve pipe pressurization.Flushing valve is opened in the pressurization of oil jacket annular space, and flushing fluid gets into the well-flushing passage from annular space, flows out from the lock tube side opening, realizes the backwash function.
Water-filling: from oil pipe pressurization, liquid last water of blanking plug in the injection well downhole flow regulator is chewed inflow, after throttling, gets into the oil jacket annular space, to last water filling layer enforcement water filling operation.Lower floor's liquid is chewed to waterflood path through following water, and water layer is implemented the water filling operation to making a bet.
Test Application: utilize sealer to carry pressure gauge respectively or flow counts well, successively test from lower to upper can measure two force value simultaneously.In the test process, interlayer does not disturb mutually, and it is accurate to measure data; When testing certain interval, do not influence the normal water filling of other intervals yet.
The integrated seperated layer water injection pressure test test of bridge-type eccentric has basically formed the subdivision of reservoir pressure measurement technology and the supporting means of interpretation that cover all kinds of oil-water wells, and on the zonal pressure data is used, has obtained better effects.Be illustrated in late high water content period through field trial, carry out the pressure measurement of branch interval and be very important.The double-deck integrated branch of bridge-type hole path is annotated the difficult problem of dropping-fishing test that packer had both solved present existence, has improved testing efficiency simultaneously again.But along with constantly development and the improvement of domestic and international water injection technology technology, the bridge-type eccentric integrated technology still needs us to continue to improve and developmental research, to ask for optimum process scheme, satisfies production requirement.
Although embodiment of the present invention are open as above; But it is not restricted to listed utilization in manual and the embodiment; It can be applied to various suitable the field of the invention fully, for being familiar with those skilled in the art, can easily realize other modification; Therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the present invention is not limited to specific details and illustrates here and describe.
Claims (4)
1. the double-deck integrated branch with bridge-type hole path is annotated packer, it is characterized in that, comprising:
Divide and annotate body, it is a hollow cylinder, and a said columniform end is the water filling end, and the other end is a sealed end;
The water filling main channel, it extends certain distance from said water filling end to sealed end one side, said water filling main channel be preceding half section near a section of said water filling end, be the second half section near a section of said sealed end;
The bridge-type hole path, it extends certain distance from said water filling end to sealed end one side equally, and said bridge-type hole path has the divergent passage of the second half section that is communicated to said water filling main channel;
Containment member, it can be arranged between preceding half period and the second half section of said water filling main channel, and said water filling main channel is separated from middle watertightness ground;
The upper strata waterflood path, it is communicated with preceding half section of said water filling main channel, lower floor's waterflood path, its second half section with said water filling main channel is communicated with.
2. the double-deck integrated branch with bridge-type hole path as claimed in claim 1 is annotated packer; It is characterized in that; Divide the periphery of annotating intrinsic said water filling main channel to be provided with water filling core pipe; Said water filling core pipe is communicated with said water filling main channel, and said water filling core pipe is provided with at least two delivery ports, is distributed in preceding half section position with the second half section of corresponding said water filling main channel respectively.
3. the double-deck integrated branch with bridge-type hole path as claimed in claim 1 is annotated packer; It is characterized in that; The below tube wall that said branch is annotated body is provided with delivery port, and said delivery port is communicated with the preceding half section delivery port that is positioned at said water filling main channel on the said water filling core pipe through water nozzle.
4. the double-deck integrated branch with bridge-type hole path as claimed in claim 1 is annotated packer; It is characterized in that; The passage that waterflood path extension tube attached and support form; It is communicated with the waterflood path that inner core tube forms with the outer core pipe of packer, and said delivery port is through the delivery port of the second half section that is positioned at said water filling main channel on water nozzle and the said water filling core pipe and the channel connection of said waterflood path extension tube attached and support formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120279942XU CN202157779U (en) | 2011-08-03 | 2011-08-03 | Double-layer integrated dispersion packer provided with bridge-type hole channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120279942XU CN202157779U (en) | 2011-08-03 | 2011-08-03 | Double-layer integrated dispersion packer provided with bridge-type hole channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157779U true CN202157779U (en) | 2012-03-07 |
Family
ID=45765420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120279942XU Expired - Fee Related CN202157779U (en) | 2011-08-03 | 2011-08-03 | Double-layer integrated dispersion packer provided with bridge-type hole channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322042A (en) * | 2020-04-17 | 2020-06-23 | 四川省科学城久利电子有限责任公司 | Water distribution system for flow control and water injection measurement of first-level double strata of oil field |
-
2011
- 2011-08-03 CN CN201120279942XU patent/CN202157779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322042A (en) * | 2020-04-17 | 2020-06-23 | 四川省科学城久利电子有限责任公司 | Water distribution system for flow control and water injection measurement of first-level double strata of oil field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201068779Y (en) | Eccentric center water-dispensing packer | |
| CN202578589U (en) | Multifunctional pipe column with well washing, testing and separate-layer profile control and flooding water injection functions | |
| CN201908636U (en) | Multi-functional eccentric separated-injection packing water distributor | |
| CN109339748B (en) | Water accumulation separate injection device suitable for offshore oil field | |
| CN101705812A (en) | Large-discharge single pipe layered polymer injection and injection allocation method and device | |
| CN209129591U (en) | A kind of achievable slim-hole water injection well layering surveys the device of tune water filling | |
| CN107246256A (en) | A kind of special-shaped coiled tubing beam ground distributor injection system | |
| CN104141477A (en) | Concentric three-tube separated layer water injection device and using method thereof | |
| CN102953716A (en) | Parallel double-tube separate layer water injection string | |
| CN108386155A (en) | Double-eccentric integrated packer for water injection well of oil field | |
| CN109707327A (en) | Concentric double-tube separate injection pressurized operation string | |
| CN202157779U (en) | Double-layer integrated dispersion packer provided with bridge-type hole channel | |
| CN103541700A (en) | Reverse seal type eccentric water distributor | |
| CN101126313A (en) | Double-allocation mode eccentric center water-distributing device | |
| CN208252098U (en) | A kind of multilayer system separate mass and separate pressure water injection string | |
| CN203452758U (en) | Multi-layer-section double-layer-tube eccentric separate injection device for ternary compound drive separate injection well | |
| CN204782961U (en) | Bridge type concentric water distributor | |
| CN202937241U (en) | Bridge type eccentricity water distributor | |
| CN201671607U (en) | Concentric double-tube separate injection pipe column for ground water distribution of highly-deviated well | |
| CN109681161B (en) | Multi-layer quality-dividing and pressure-dividing water injection method and water injection pipe column | |
| CN101397905B (en) | Stratified static pressure combination tool for water injection well | |
| CN201202457Y (en) | Double-tube water injecting system of water injection well | |
| CN2929158Y (en) | Wellhead device of concentric double tube injection water | |
| CN214616480U (en) | Oil field water injection well water injection layering multitube divides water injection system | |
| CN207093049U (en) | Separate injection string for water injection of oil well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20160803 |