CN109162706A - A kind of well-case perforating horizontal well liquid production section test device, production test integral tubular column and test method - Google Patents
A kind of well-case perforating horizontal well liquid production section test device, production test integral tubular column and test method Download PDFInfo
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- CN109162706A CN109162706A CN201811315258.5A CN201811315258A CN109162706A CN 109162706 A CN109162706 A CN 109162706A CN 201811315258 A CN201811315258 A CN 201811315258A CN 109162706 A CN109162706 A CN 109162706A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 130
- 238000012360 testing method Methods 0.000 title claims abstract description 89
- 239000007788 liquid Substances 0.000 title claims abstract description 60
- 238000010998 test method Methods 0.000 title abstract description 5
- 239000000700 radioactive tracer Substances 0.000 claims abstract description 125
- 239000012530 fluid Substances 0.000 claims abstract description 92
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000008961 swelling Effects 0.000 claims abstract description 17
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 12
- 239000000969 carrier Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 238000013268 sustained release Methods 0.000 description 27
- 239000012730 sustained-release form Substances 0.000 description 27
- 239000000126 substance Substances 0.000 description 6
- 230000002459 sustained effect Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/11—Locating fluid leaks, intrusions or movements using tracers; using radioactivity
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Abstract
The invention belongs to well-case perforating horizontal well completion producing profile testing technical fields; more particularly to a kind of well-case perforating horizontal well liquid production section test device, production test integral tubular column and test method; the first inlet opening is offered in the middle part of the base tube of the device, protection pipe is sheathed on base tube;The both ends of protection pipe are laid with plug and oil suction water swelling rubber snare;It is release chamber between protection pipe and base tube, the both ends for discharging chamber are respectively arranged with the molten type tracer agent carrier of oil and water-soluble tracer agent carrier;The both ends of protection pipe offer the channel for entering release chamber for reservoir fluid respectively.The present invention, which is able to solve, has needed lower tubular column existing for the horizontal well produced fluid cross section technology of the complete well of existing well-case perforating, require the erosion of the heat-proof corrosion resistant of equipment that high, tripping in is difficult, testing expense is excessively high, the test phase is short, requires high all various limitations, it can be achieved that economical and effective in the case where not affecting the normal production test horizontal well production profile for a long time well type.
Description
Technical field
The invention belongs to well-case perforating horizontal well completion producing profile testing technical fields, and in particular to a kind of well-case perforating
Horizontal well liquid production section test device, production test integral tubular column and test method.
Background technique
As China is hypotonic, the large-scale development of the special oil gas fields such as hypotonic, fine and close, horizontal well is that such oil and gas development is extensive
The development technique of use.And for hypotonic, special hypotonic, fine and close oil gas field, water filling is generally required to improve stratum energy.But with
The continuous progress of exploitation, the horizontal well of waterflooding extraction there is local water logging, produce every problems such as liquid is uneven, these problems
It will affect moving forward steadily for its Efficient Development, it is necessary to take suitable technology to measure horizontal well production profile, determine water outlet, low yield
Position provides important basic information for the optimization of subsequent production system, water blockoff, reservoir reconstruction etc..
Currently, major technique has liquid producing profile log, wireline logging, optical fiber to survey in terms of horizontal well produced fluid cross section
Well etc., but these technologies often exist needed lower tubular column and the heat-proof corrosion resistant for entering well equipment is lost require high, tripping in difficulty,
Testing expense is excessively high, the test phase is short and requires high all various limitations to well type, it is difficult to which satisfaction is not influencing normal life
The economical and effective requirement that horizontal well production profile is tested for a long time in the case where production.
Summary of the invention
In order to solve to have needed existing for the horizontal well produced fluid cross section technology of the complete well of existing well-case perforating lower tubular column and
To entering, the heat-proof corrosion resistant erosion requirement height of well equipment, tripping in is difficult, testing expense is excessively high, the test phase is short, it is high all to require well type
Various limitations, and be difficult to meet economical and effective to horizontal well production profile in the case where not affecting the normal production
The problem tested for a long time, the object of the present invention is to provide a kind of well-case perforating horizontal well liquid production section test devices, production
Testing integrated tubing string and test method.
The technical solution adopted by the invention is as follows:
A kind of well-case perforating horizontal well liquid production section test device, including base tube, protection pipe, oil suction water swelling rubber
If circle, several water-soluble tracer agent carriers and the molten type tracer agent carrier of drier oil, the middle position of base tube are furnished with the first inlet opening, protect
Protective pipe sleeve is set to outside base tube, can guarantee that tracer agent carrier is not damaged by external force during entering well;
Cavity between protection pipe and base tube is release chamber, discharges chamber in the first inlet opening two sides and is fixedly installed oil respectively
Molten type tracer agent carrier and water-soluble tracer agent carrier;
The both ends of protection pipe are laid with the plug for making protection pipe and base tube keep coaxial, and oil suction water swelling rubber
Cushion rubber is sheathed at plug, is sealed between plug and base tube;
The both ends of protection pipe in the axial direction are equipped with fluid course, so that reservoir fluid is flowed into the middle part of base tube by release chamber
The first inlet opening, and finally flow into base tube.
Preferably, circumferentially spaced in release chamber between protection pipe and base tube to be provided with several spacing blocks, spacing block
Chamber will be discharged and be divided into several small release chambers for being used to place oil molten type tracer agent carrier and water-soluble tracer agent carrier.
Preferably, base tube uniformly opens up multiple first inlet openings in its circumferential direction.
Preferably, the both ends of protection pipe offer multiple second inlet openings on its surface respectively, and the second inlet opening is straight
Diameter is 0.425~0.850mm, and second inlet opening is as the fluid course for entering release chamber for reservoir fluid.
Preferably, base tube length is greater than protection length of tube, and every one end of protection pipe is correspondingly arranged two plugs, plug middle part
Aperture is simultaneously sheathed on base tube by the hole, and oil suction water swelling rubber snare is located on base tube and between two plugs.
Preferably, the both ends of plug are equipped with outer chamfer, and the end of protection pipe and the outer chamfer position of plugged end offset
Or connection.
A kind of production test integral tubular column, including above-mentioned well-case perforating horizontal well liquid production section test device, described sleeve pipe
Perforated horizontal wells liquid production section test device is set to horizontal well perforation section, and well-case perforating horizontal well liquid production section test device
Both ends respectively with the production tube at both ends be tightly connected.
A kind of well-case perforating horizontal well produced fluid cross section method, process are as follows:
Well-case perforating horizontal well is divided into heel, middle part and toe from horizontal the initial segment to shaft bottom;
After horizontal well perforation, by production tube connect above-mentioned well-case perforating horizontal well liquid production section test device and under
Enter to the horizontal segment target location of horizontal well, heel, middle part and the toe of horizontal well are arranged with the production of well-case perforating horizontal well
Liquid section plane test device, in the well-case perforating horizontal well liquid production section test device of the heel of horizontal well, middle part and toe distribution
The molten type tracer agent carrier of oil in tracer active chemical be all different, the tracer in water-soluble tracer agent carrier has
Effect chemical component is all different;
After well-case perforating horizontal well liquid production section test device is transferred in place, oil suction water swelling rubber circle is in horizontal well
It is expanded under the action of fluid in horizontal segment completion casing, the both ends of well-case perforating horizontal well liquid production section test device is sealed
Every so that the reservoir fluid of target perforated interval is only capable of being entered by protection pipe both ends for reservoir fluid by corresponding well-case perforating
The fluid course for discharging chamber flows into release chamber;In release chamber, in the molten type tracer agent carrier of oil and water-soluble tracer agent carrier
Tracer is released into reservoir fluid, carries reservoir fluid the first inlet opening inflow life through opening up on base tube again of tracer
Oil-producing pipe;
After horizontal well normally produces, is analyzed on ground in face of horizontal well production fluid, pass through horizontal well heel, middle part and toe
The output concentration of portion's tracer determines the oil production and water yield of horizontal well heel, middle part and toe, finally obtains horizontal well
Production profile.
Preferably, the molten type tracer agent carrier of the oil and water-soluble tracer agent carrier discharge tracer in reservoir fluid
The flow velocity positive correlation of speed and reservoir fluid.
Compared with prior art, the invention has the following beneficial effects:
Well-case perforating horizontal well liquid production section test device of the invention can be made by the fluid course at protection pipe both ends
It obtains the reservoir fluid at horizontal well perforation and flows into release chamber, oily molten type tracer agent carrier is provided in release chamber and water-soluble shows
Track agent carrier, therefore after reservoir fluid flows into release chamber, it can be with the molten type tracer agent carrier of oil and water-soluble tracer agent carrier
It comes into full contact with, the tracer in the molten type tracer agent carrier of oil and water-soluble tracer agent carrier can be discharged and is dissolved in reservoir fluid
Oil mutually or water phase in;Carrying the reservoir fluid of tracer, the first inlet opening through opening up on base tube flows into base tube again
Chamber;When in use, well-case perforating horizontal well liquid production section test device both ends of the invention are connect with production tube, at this time into
Enter base tube inner cavity and carries the reservoir fluid of tracer i.e. with the fluid output in production tube;By in horizontal well difference position
Well-case perforating horizontal well liquid production section test device of the invention is installed, after horizontal well normally produces, on ground in face of level
Well production fluid is analyzed, it will be able to determine horizontal well different parts by the output concentration of horizontal well different location tracer
Oil production and water yield, finally obtain the production profile of horizontal well;Plug of the present invention and base tube are tightly connected, and base tube end
Two plugs between be arranged with oil suction water swelling rubber circle, therefore by well-case perforating horizontal well liquid production section test device tripping in
To the corresponding perforating site of horizontal segment of horizontal well, oil suction water swelling rubber circle flows in horizontal well horizontal segment completion casing
It is expanded under the action of body, the both ends of well-case perforating horizontal well liquid production section test device is insulated, so that reservoir fluid is only
Release chamber can be entered by the fluid course for entering release chamber for reservoir fluid that protection pipe both ends open up respectively by perforated interval;?
The purpose that protection pipe both ends open up the fluid course for entering release chamber for reservoir fluid respectively is so that reservoir fluid is discharging
The intracavitary both ends from release chamber are collected to middle part, then flow into production tube by the first inlet opening in the middle part of base tube, so that reservoir stream
Body can come into full contact with the molten type tracer agent carrier of oil and water-soluble tracer agent carrier, be conducive to the abundant release of tracer, with
Guarantee the monitoring effect in later period;To sum up, the well-case perforating horizontal well liquid production section test device provided through the invention can solve
Lower tubular column is needed existing for the horizontal well produced fluid cross section technology of the certainly existing complete well of well-case perforating and to entering the resistance to of well equipment
The corrosion-resistant requirement of temperature is high, tripping in is difficult, testing expense is excessively high, the test phase is short, requires high all various limitations to well type, with
And it is difficult to meet the economical and effective difficulty tested for a long time horizontal well production profile in the case where not affecting the normal production
Topic.
By the beneficial effect of aforementioned present invention well-case perforating horizontal well liquid production section test device it is found that through the invention
Production test integral tubular column can measure to obtain the production profile of horizontal well, and be able to solve the water of the complete well of existing well-case perforating
It has needed lower tubular column existing for horizontal well producing profile testing technology and has lost the heat-proof corrosion resistant for entering well equipment that high, tripping in is required to be stranded
It is difficult, testing expense is excessively high, the test phase is short, requires high all various limitations to well type, and be difficult to meet and do not influencing just
The often economical and effective problem that horizontal well production profile is tested for a long time in the case where production.
By the beneficial effect of aforementioned present invention well-case perforating horizontal well liquid production section test device it is found that casing of the invention
Perforated horizontal wells producing profile testing method is by carrying sustained release tracer, oil-producing and production water that can be each section of quantitative analysis horizontal well
Situation, and used sustained release tracer can realize the long-term release up to 2 years, be can be realized after tripping in equipment in motionless pipe
Producing profile testing is carried out to well-case perforating horizontal well in the case where column, have low cost, it is long-term, efficiently, do not influence normal life
The characteristics of production;Down tube has been needed existing for the horizontal well produced fluid cross section technology for equally also solving the complete well of existing well-case perforating
Column and losing to the heat-proof corrosion resistant for entering well equipment requires that high, tripping in is difficult, testing expense is excessively high, the test phase is short, it is high to require well type
Etc. all various limitations, and it is difficult to meet economical and effective to horizontal well production liquid in the case where not affecting the normal production
The problem that section is tested for a long time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of production test integral tubular column of the present invention;
Fig. 2 is that longitudinal section is illustrated after well-case perforating horizontal well liquid production section test device of the present invention is connect with production tube
Figure;
Fig. 3 is well-case perforating horizontal well liquid production section test device cross-sectional view of the present invention.
In figure: 1- horizontal well heel perforated interval, 2- horizontal well middle part perforated interval, 3- horizontal well toe perforated interval, 4- are horizontal
Well horizontal segment completion casing, 5- production tube, the molten type tracer of 6- well-case perforating horizontal well liquid production section test device I, 7- oil
The molten type tracer of carrier I, 8- water-soluble tracer agent carrier I, 9- well-case perforating horizontal well liquid production section test device II, 10- oil
The molten type of carrier II, 11- water-soluble tracer agent carrier II, 12- well-case perforating horizontal well liquid production section test device III, 13- oil shows
The first inlet opening of track agent carrier III, 14- water-soluble tracer agent carrier III, 15-, 16- plug, 17- oil suction water swelling rubber
Circle, 18- protection pipe, 19- base tube, 20- discharge chamber, 21- spacing block.
Specific embodiment
Below will by embodiment, the present invention is further illustrated, need described herein be the present embodiment to be only this hair
Bright in light of the circumstances a implementation method, is not intended to limit the invention in any way, it is all according to the technical essence of the invention into
Capable any simple modification, change and other variations, are within the scope of the invention.
Referring to Fig. 2, well-case perforating horizontal well liquid production section test device of the invention, including base tube 19, protection pipe 18, suction
If oily water swelling rubber circle 17, several water-soluble tracer agent carriers and the molten type tracer agent carrier of drier oil, base tube 19 is in the middle
The first inlet opening 15 is offered, protection pipe 18 is sheathed on base tube 19;The both ends of protection pipe 18 are laid with for making to protect
Pipe 18 keeps coaxial plug 16 with base tube 19, and oil suction water swelling rubber circle 17 is sheathed at plug 16, plug 16 and base
It is sealed between pipe 19;Cavity between protection pipe 18 and base tube 19 is release chamber 20, discharges chamber 20 in 15 two sides of the first inlet opening
It is fixedly installed the molten type tracer agent carrier of oil and water-soluble tracer agent carrier respectively;The both ends of protection pipe open up respectively on its surface
There are multiple second inlet openings, as the fluid course for entering release chamber for reservoir fluid, so that reservoir fluid and tracer carry
Body comes into full contact with.
Referring to Fig. 3, as the preferred embodiment of the invention, along week in release chamber 20 between protection pipe 18 and base tube 19
To several spacing blocks 21 are arranged at intervals with, release chamber 20 is divided into several and is used to place the molten type tracer load of oil by spacing block
Body and the small release chamber of water-soluble tracer agent carrier;The molten type tracer agent carrier of oil and water-soluble are enabled to by the way that spacing block 21 is arranged
Tracer agent carrier is uniformly distributed in the circumferential direction of whole device, is conducive to reservoir fluid and is come into full contact with tracer, makes it possible to root
The oil-producing of each perforated interval is accurately judged to according to the collected each tracer content of well head and produces regimen condition.
As the preferred embodiment of the invention, the middle part of base tube 19 uniformly opens up multiple first inlet openings in its circumferential direction
15, so that the reservoir fluid for carrying tracer flows into inside base tube 19, and pass through oil pipe output.
As shown in Fig. 2, base tube 19 is longer than protection pipe 18 as the preferred embodiment of the invention, every one end of protection pipe
Two plugs 16 are correspondingly arranged, 16 middle part aperture of plug is simultaneously sheathed on base tube 19, oil suction water swelling rubber circle 17 by the hole
It is set on base tube 19 and is between two plugs 16, plug 16 and base tube 19 are tightly connected, to guarantee that reservoir fluid is only capable of
Direction along the second inlet opening, release chamber 20, the first inlet opening 15 flows into base tube 19.
Referring to Figures 1 and 2, as the preferred embodiment of the invention, the both ends of plug 16 are equipped with outer chamfer, the chamfering
It can guarantee the smooth tripping in of production tube for being connected with well-case perforating horizontal well liquid production section test device.
Referring to Fig.1, production test integral tubular column of the invention includes aforementioned present invention well-case perforating horizontal well production profile
Test device, described sleeve pipe perforated horizontal wells liquid production section test device is set to horizontal well perforation section, and well-case perforating is horizontal
The both ends of well liquid production section test device are tightly connected with the production tube at both ends respectively, and the length of production tube 5 is by each perforation
The distance between section determines.
Referring to Figures 1 and 2, the molten type sustained release tracer I7 of oil, the molten type sustained release tracer II10 of oil, the molten type of oil are sustained tracer
III13 is mixed with all kinds of oil-soluble tracer effective components used respectively using epoxy resin;Water-soluble is sustained tracer
I8, water-soluble sustained release tracer II11, water-soluble sustained release tracer III14 are shown with all kinds of water solubilitys used respectively using inorganic salts
Track agent effective component is mixed.
Referring to Fig.1~Fig. 3, well-case perforating horizontal well produced fluid cross section method of the invention, process are as follows:
Well-case perforating horizontal well is divided into heel, middle part and toe from horizontal the initial segment to shaft bottom;
After horizontal well perforation, above-mentioned well-case perforating horizontal well liquid production section test device is connected simultaneously by production tube 5
In tripping in the horizontal segment of horizontal well, heel, middle part and the toe of horizontal well are distributed with well-case perforating horizontal well production profile
Test device, the oil in well-case perforating horizontal well liquid production section test device that heel, middle part and the toe of horizontal well are distributed are molten
Tracer in type tracer agent carrier is all different, and the tracer in water-soluble tracer agent carrier is all different;
After well-case perforating horizontal well liquid production section test device is transferred in place, oil suction water swelling rubber circle 17 is in level
Expanded under the action of fluid in well horizontal segment completion casing 4, to the both ends of well-case perforating horizontal well liquid production section test device into
Row packing, so that reservoir fluid is only capable of flowing into release chamber 20 by the fluid course at outer tube both ends by well-case perforating;It is discharging
In chamber 20, the tracer in the molten type tracer agent carrier of oil and water-soluble tracer agent carrier is released into reservoir fluid, is carried and is shown
The first inlet opening 15 through opening up in the middle part of base tube 19 flows into production tube 5 to the reservoir fluid of track agent again;The use of each sustained release tracer
Amount is determined according to horizontal well Liquid output, monitoring cycle;
After horizontal well normally produces, reservoir fluid can only be filled by perforated interval by well-case perforating horizontal well produced fluid cross section
It sets and flows to production tube, when reservoir fluid flows through well-case perforating horizontal well liquid production section test device and in tracer agent carrier
Tracer elements mixing, therefore can be analyzed on ground in face of horizontal well production fluid, pass through horizontal well heel, middle part and toe
The output concentration of tracer determines the oil production and water yield of horizontal well heel, middle part and toe, finally obtains horizontal well
Production profile.
The molten type tracer agent carrier of the oil and water-soluble tracer agent carrier discharged in reservoir fluid the speed of tracer with
The flow velocity positive correlation of reservoir fluid.
For further explanation technical principle and horizontal well produced fluid cross section method of the invention, it is exemplified below:
As shown in Figure 1, the horizontal well of test passes through production tube connecting sleeve perforated horizontal wells after the complete well of well-case perforating
In liquid production section test device and tripping in the horizontal segment of horizontal well, well-case perforating horizontal well produced fluid cross section fills I 6 and places
At horizontal well heel perforated interval 1, well-case perforating horizontal well produced fluid cross section dress II 9 is placed in perforated interval 2 in the middle part of horizontal well
Place, well-case perforating horizontal well produced fluid cross section dress III 12 are placed at horizontal well toe perforated interval 3.Horizontal well heel perforation
1 oil-producing of section does not produce that water, perforated interval 2 produces water oil-producing, horizontal well toe perforated interval 3 not only oil-producing but also had not produced water in the middle part of horizontal well.
Due to not producing water, the well-case perforating water placed at horizontal well heel perforated interval 1 in horizontal well heel perforated interval 1
The water-soluble sustained release tracer agent carrier I 8 placed inside horizontal well producing profile testing dress I 6 can not dissolve in reservoir fluid to be released
Water-soluble tracer is put, therefore can not detect water-soluble tracer in the production fluid of well head stratum;Since horizontal well heel is penetrated
Oil-producing in hole section 1, therefore the molten type sustained release tracer agent carrier of oil placed inside well-case perforating horizontal well produced fluid cross section dress I 6
I 7 can dissolve the molten type tracer of release oil (in the present embodiment, the molten type sustained release tracer agent carrier I 7 of oil in reservoir fluid
Content of the active chemical in the production fluid of stratum be 60ppb).
Due to not oil-producing in perforated interval 2 in the middle part of horizontal well, the well-case perforating water placed at perforated interval 2 in the middle part of horizontal well
The molten type sustained release tracer agent carrier II 10 of the oil placed inside horizontal well producing profile testing dress II 9 can not dissolve in reservoir fluid
The molten type tracer of release oil, therefore the molten type tracer II 10 of oil can not be detected in well head production fluid;Due in the middle part of horizontal well
The water-soluble sustained release tracer for producing water in perforated interval 2, therefore being placed inside well-case perforating horizontal well produced fluid cross section dress II 9
Carrier II 11 can dissolve release water-soluble tracer in reservoir fluid, and (in the present embodiment, water-soluble sustained release tracer carries
Content of the active chemical of body II 11 in the production fluid of stratum is 70ppb).
Horizontal well toe perforated interval 3 not only oil-producing but also had produced water, therefore the well-case perforating horizontal well of its corresponding position produces liquid and cuts open
The molten type sustained release tracer agent carrier III13 of oil inside face test dress III 12 can dissolve the molten type of release oil in reservoir fluid and show
Track agent (in the present embodiment, content of the active chemical of the molten type sustained release tracer agent carrier III13 of oil in the production fluid of stratum
Release water-soluble tracer can be dissolved in reservoir fluid (in this reality for 40ppb), water-soluble sustained release tracer agent carrier III14
It applies in example, it is 30ppb that water-soluble, which is sustained content of the active chemical of tracer agent carrier III 14 in the production fluid of stratum).
After horizontal well normally produces, oil molten type sustained release tracer I 7 (content 60ppb), water-soluble can be collected in well head
Type is sustained tracer II 11 (content 70ppb), molten type sustained release tracer III 13 (content 40ppb) of oil, water-soluble sustained release
Tracer III 14 (content 30ppb).Since the sustained release tracer used discharges the speed of tracer in reservoir production fluid
With the flow velocity positive correlation of reservoir production fluid, each perforated interval be can determine whether out according to the collected each tracer content of well head
Oil-producing produces regimen condition.
Since the content of the molten type sustained release tracer I 7 of oil in the collected reservoir production fluid of well head is 60ppb, then can determine whether
1 oil-producing of horizontal well heel perforated interval, and the oil production of horizontal well heel perforated interval 1 is the 60% of the total oil production of the horizontal well;Water
The content of molten type sustained release tracer I 8 is 0, then can determine whether that horizontal well heel perforated interval 1 does not produce water.
Since the content of the molten type sustained release tracer II 10 of oil in the collected reservoir production fluid of well head is 0, then it can determine whether water
The not oil-producing of horizontal well heel perforated interval 2;The content that water-soluble is sustained tracer II 11 is 70ppb, then can determine whether that horizontal well heel is penetrated
Hole section 2 produces water, and the water yield of horizontal well heel perforated interval 2 is the 70% of the total water yield of the horizontal well.
Since the content of the molten type sustained release tracer III 13 of oil in the collected reservoir production fluid of well head is 40ppb, then may be used
3 oil-producing of determined level well heel perforated interval, and the oil production of horizontal well heel perforated interval 3 is the total oil production of the horizontal well
40%;The content that water-soluble is sustained tracer III 14 is 30ppb, then can determine whether that horizontal well heel perforated interval 3 produces water, and horizontal
The water yield of well heel perforated interval 3 is the 30% of the total water yield of the horizontal well.
Can according to the oil-producing of each perforated interval, produce regimen condition, horizontal well production profile figure can be drawn, and carry out subsequent water blockoff,
Close water exit interval, the again a series of measures such as perforation, refracturing.
In the present invention, the well-case perforating horizontal well liquid production section test device placed in horizontal well can be penetrated according to horizontal well
The concrete conditions such as hole parameter, emphasis perforated interval monitoring objective, horizontal well liquid-producing capacity design well-case perforating horizontal well production profile
The quantity of test device, placement location, and design the sustained release carried in each well-case perforating horizontal well liquid production section test device
Tracer dosage, without being limited to three tracer delayed release devices listed by the present embodiment and six kinds of sustained release tracers.
The present invention using oil pipe connecting sleeve perforated horizontal wells liquid production section test device and tripping in horizontal well level
In section, under the action of covering tube fluid, the oil suction/water swelling rubber at tracer delayed release device both ends can play packing and make
With, it can be achieved that the purpose that lower packet does not test horizontal well in segments;The sustained release tracer of use, can discharge tracer for a long time,
Without acting tracer delayed release device, it can be achieved that carrying out long term monitoring to well-case perforating horizontal well production profile under fixed tubular column
Purpose reduces the expense of construction operation, reduces influence of the closing well to normally producing.
Claims (10)
1. a kind of well-case perforating horizontal well liquid production section test device, which is characterized in that including base tube (19), protection pipe (18),
Oil suction water swelling rubber circle (17) if, several water-soluble tracer agent carriers and the molten type tracer agent carrier of drier oil, base tube (19)
Middle position is furnished with the first inlet opening (15), and it is external that protection pipe (18) is sheathed on base tube (19);
Cavity between protection pipe (18) and base tube (19) is release chamber (20), discharges chamber (20) in the first inlet opening (15) two sides
It is fixedly installed the molten type tracer agent carrier of oil and water-soluble tracer agent carrier respectively;
The both ends of protection pipe (18) are laid with for making protection pipe (18) and base tube (19) keep coaxial plug (16), and are inhaled
Oily water swelling rubber circle (17) is sheathed at plug (16), seals between plug (16) and base tube (19);
The both ends of protection pipe (18) in the axial direction are equipped with fluid course.
2. a kind of well-case perforating horizontal well liquid production section test device according to claim 1, which is characterized in that protection pipe
(18) circumferentially spaced in release chamber (20) between base tube (19) to be provided with several spacing blocks (21), spacing block (21) will
Release chamber (20) is divided into several for placing the small release chamber of oil molten type tracer agent carrier and water-soluble tracer agent carrier.
3. a kind of well-case perforating horizontal well liquid production section test device according to claim 1, which is characterized in that base tube
(19) multiple first inlet openings (15) are uniformly opened up in its circumferential direction.
4. a kind of well-case perforating horizontal well liquid production section test device according to claim 1, which is characterized in that protection pipe
(18) both ends offer multiple second inlet openings on its surface respectively, and second inlet opening is used as to enter for reservoir fluid and release
Put the fluid course of chamber.
5. a kind of well-case perforating horizontal well liquid production section test device according to claim 4, which is characterized in that second into
The diameter of fluid apertures is 0.425~0.850mm.
6. a kind of well-case perforating horizontal well liquid production section test device according to claim 1, which is characterized in that base tube
(19) length is greater than protection pipe (18) length, and every one end of protection pipe (18) is correspondingly arranged two plugs (16), in plug (16)
Portion's aperture is simultaneously sheathed on base tube (19) by the hole, and oil suction water swelling rubber snare (17) is set on base tube (19) and is in
Between two plugs (16).
7. a kind of well-case perforating horizontal well liquid production section test device according to claim 6, which is characterized in that plug
(16) both ends are equipped with outer chamfer, and the end of protection pipe (18) offsets or connect with the outer chamfer position of plug (16) end.
8. a kind of production test integral tubular column, which is characterized in that including well-case perforating water described in claim 1-7 any one
Horizontal well liquid production section test device, described sleeve pipe perforated horizontal wells liquid production section test device are set to horizontal well perforation section, and
The both ends of well-case perforating horizontal well liquid production section test device are tightly connected with the production tube at both ends (5) respectively.
9. a kind of well-case perforating horizontal well produced fluid cross section method, which is characterized in that process is as follows:
Well-case perforating horizontal well is divided into heel, middle part and toe from horizontal the initial segment to shaft bottom;
After horizontal well perforation, well-case perforating horizontal well produced fluid cross section described in claim 1 is connected by production tube (5)
To the horizontal segment target location of horizontal well, heel, middle part and the toe of horizontal well be arranged with well-case perforating for device and tripping in
Horizontal well liquid production section test device, heel, middle part and the well-case perforating horizontal well production profile of toe distribution of horizontal well are surveyed
Trial assembly set in the molten type tracer agent carrier of oil in tracer be all different, the not phase of the tracer in water-soluble tracer agent carrier
Together;
After well-case perforating horizontal well liquid production section test device is transferred in place, oil suction water swelling rubber circle (17) is in horizontal well
Expanded under the action of horizontal segment completion casing (4) interior fluid, to the both ends of well-case perforating horizontal well liquid production section test device into
Row packing, so that the reservoir fluid of target perforated interval is entered by protection pipe both ends for reservoir fluid by corresponding well-case perforating
The fluid course for discharging chamber (8) flows into release chamber (8);In release chamber (8), the molten type tracer agent carrier of oil and water-soluble tracer
Tracer in carrier is released into reservoir fluid, carries first of the reservoir fluid of tracer again through opening up on base tube (19)
Inlet opening (15) flows into production tube (5);
After horizontal well normally produces, is analyzed on ground in face of horizontal well production fluid, shown by horizontal well heel, middle part and toe
The output concentration of track agent determines the oil production and water yield of horizontal well heel, middle part and toe, finally obtains the production of horizontal well
Liquid section.
10. a kind of well-case perforating horizontal well produced fluid cross section method according to claim 9, which is characterized in that described
The molten type tracer agent carrier of oil and water-soluble tracer agent carrier discharge the speed of tracer and the stream of reservoir fluid in reservoir fluid
Rapid-result positive correlation.
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