CN109469481B - Chemical combination tracer and its application method - Google Patents
Chemical combination tracer and its application method Download PDFInfo
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- CN109469481B CN109469481B CN201811591800.XA CN201811591800A CN109469481B CN 109469481 B CN109469481 B CN 109469481B CN 201811591800 A CN201811591800 A CN 201811591800A CN 109469481 B CN109469481 B CN 109469481B
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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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
- E21B49/088—Well testing, e.g. testing for reservoir productivity or formation parameters combined with sampling
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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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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of chemical combination tracers, including group number multiple groups slow-release solid tracer identical with horizontal well number of segment to be monitored, every group of slow-release solid tracer includes: water-soluble solid tracer, it is the spherical shape that diameter is 1-1.2cm, and the water-soluble solid tracer includes a kind of water-soluble chemical tracer, epoxy resin 506 and the maleic anhydride that mass ratio is 1:2:1；Oil-soluble solid tracer is the spherical shape that diameter is 1-1.2cm, and the oil-soluble solid tracer includes a kind of molten chemical tracer of oil, epoxy resin 506 and the maleic anhydride that mass ratio is 1:2:1.The invention discloses a kind of application methods of chemical combination tracer.The present invention, which has, increases slow-release solid tracer and oil level or aqueous face contact uniformity, improves the beneficial effect of detection accuracy.
Description
Technical field
The present invention relates to chemical combination Tracer Technique fields.It is more particularly related to which a kind of chemical combination is shown
Track agent and its application method.
Background technique
Perfect year by year with oil field drilling completion technique, horizontal well production becomes one of the important means of oil field development.Water
For horizontal well since drainage area is larger, production capacity substantially exceeds straight well, has great advantages in production.Existing tracer inspection
Survey technology, which refers to from injection well, injects tracer, then provides that output well samples around, detects its output by certain sampling
Situation analyzes sample, obtains tracer production curve, is then fitted, reflection monitoring situation, to instruct oil well
The design of exploitation and the later period adjustment of oil field development, but there are cumbersome, evaluation time is all from injection well injection tracer
Phase span is long, downhole tool safety requirements and problem at high cost, in recent years, Norway RESMAN and Britain in order to solve the above problem
Tracerco company has developed Solid-state Chemistry tracer, core be it is a kind of synthesized by polyethylene and polystyrene glycol it is novel
Polymer, Solid-state Chemistry tracer are mounted in the annular space of base tube and screen casing more after preparing in a strip shape or threadiness, are existed
It is stifled to set part base tube and screen casing space and occupy fluid circulation space, fluid flowing is influenced, and then influence petroleum collection, is in simultaneously
The end face that strip or the Solid-state Chemistry tracer of threadiness are pasted on base tube is not contacted with fluid, influences the stabilization of detection
Property.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of chemical combination tracers, can increase slow-release solid tracer
With oil level or aqueous face contact uniformity, detection accuracy is improved.
It is a still further object of the present invention to provide a kind of application methods of chemical combination tracer, by every group of slow-release solid
Tracer is installed in the base tube of corresponding every section of oil well to be monitored by installing mechanism, can guarantee sufficiently to connect with base liquid in pipe
While touching, liquid is not influenced and is entered in base tube by screen casing and base tube space, slow-release solid tracer, which is set as spherical shape, to be had
Effect increases it and contacts effect and the sustained release uniformity.
In order to realize these purposes and other advantages according to the present invention, a kind of chemical combination tracer is provided, comprising:
Including group number multiple groups slow-release solid tracer identical with horizontal well number of segment to be monitored, every group of slow-release is solid
Body tracer includes:
Water-soluble solid tracer is the spherical shape that diameter is 1-1.2cm, and the water-soluble solid tracer includes quality
Than a kind of water-soluble chemical tracer, epoxy resin 506 and the maleic anhydride for 1:2:1, wherein water-soluble chemical tracer
For fluobenzoic acid class compound；
Oil-soluble solid tracer is the spherical shape that diameter is 1-1.2cm, and the oil-soluble solid tracer includes quality
Chemical tracer more molten than a kind of oil for 1:2:1, epoxy resin 506 and maleic anhydride, wherein the molten chemical tracer of oil
For fluobenzoic acid esters compound；
Wherein, the water-soluble chemical tracer in any two groups of slow-release solid tracers is different, and the molten chemical tracer of oil is not
Together.
A kind of application method of chemical combination tracer, comprising the following steps:
S1, slow-release solid tracer group number is determined according to horizontal well number of segment to be monitored；
S2, every group of slow-release solid tracer are installed on the base tube of corresponding every section of oil well to be monitored by an installing mechanism
Outlet end that is interior and being located at liquid flow direction in every section of oil well to be monitored, the interior interval welding of the base tube of every section of oil well to be monitored
Two fixed blocks, two fixed blocks are arranged about base tube axisymmetrical, wherein each installing mechanism includes:
Fixed link comprising it is cylindric and outer bar and interior bar that peripheral radius is equal, an end face of the outer bar, institute
State interior bar an end face all have with the matched fixing groove of the fixed block, the other end of the outer bar is along its axis direction
Recess is equipped with holding tank, and the receiving groove bottom middle and upper part is recessed inwardly with the first accommodating groove, first accommodating groove bottom end
The free end of affixed first spring, first spring abuts a filling block, and the top side face of the holding tank is recessed upwards to be had
The free end of second accommodating groove, one end affixed second spring of second accommodating groove far from holding tank, the second spring is solid
Connect push plate, the other end of the interior bar be condensed to be formed with the matched condensation unit of the holding tank so that the condensation unit is inserted in
In the holding tank, when the free end for compressing the condensation unit is abutted with the bottom surface of the holding tank, and the fixation of the outer bar
When slot matching accommodates corresponding fixed block, the free end of the filling block one end far from first spring and the condensation unit
It abuts, the bottom surface of the push plate is abutted with the upper side of the condensation unit；Stop compression, the first spring successively push filling block and
When the interior bar makes the fixing groove matching of the interior bar accommodate corresponding fixed block, the second spring pushes the push plate, in turn
It moves down filling block to be filled between the receiving groove bottom and the condensation unit free end, so that fixed link is fixedly arranged on base tube
It is interior, wherein the periphery of the outer bar and the interior bar, which is recessed, has circular sliding slot, and the chute wall of the interior bar is circumferentially
Interval is arranged through at least two slideways, two slideways are extended along the interior bar length direction；
Rotating cylinder, inner sidewall be provided with the outer bar sliding slot match first protrusion and with the interior bar sliding slot
Match and raised rotatably set on described with one-to-one at least two second protrusion of the interior bar sliding way, described first
In the sliding slot of outer bar, when the free end for compressing the condensation unit is abutted with the bottom surface of the holding tank, at least two second is raised
It corresponds and is located in slideway, stop compression, the second protrusion is along the sliding slot that slideway slides into the interior bar, so that fixed link is solid
When in base tube, the rotating cylinder is rotatably sheathed on the fixed link periphery；
Four flabellums, the flabellum are the hollow plate made of rigid mesh, and four flabellums are fixed in described in right-angled intersection
Rotating cylinder periphery, spacing card sets multiple filters in the flabellum, by space in the flabellum be divided into it is multiple successively adjacent and
Perpendicular to the branch cavity of the rotating cylinder, slow-release solid tracer is uniformly filled in corresponding branch cavity；
S3, implement tracer test sampling operation according to design sample time and sampling frequency, and complete the sample after sampling
Product examine is surveyed, and determines the type, content of contained chemical tracer in sample, and carry out level according to the content of every kind of chemical tracer
Well monitoring.
Preferably, the flabellum is arc, and distance of the arc-shaped side of the flabellum apart from the base tube inner sidewall is little
In 4mm.
Preferably, the fixed block is end face class cuboid compatible with base tube weld inner sidewall, described
The length of fixed block is 1.3-1.8cm；
The mesh of the rigid mesh and the filter is rectangular opening, and the circumscribed circle diameter of rectangular opening is 1-2mm.
Preferably, the application method of the chemical combination tracer, further includes: multiple arcs baffle, multiple arcs
Baffle and multiple flabellums correspond, and the arc-shaped side of each flabellum is docked with the matching of the arc-shaped side of corresponding curved baffle,
For the curved baffle vertically with corresponding flabellum, four curved baffles of same installing mechanism, which are located at, corresponds to the same of flabellum
Side.
It preferably, further include that basis is effectively shown before slow-release solid tracer being uniformly filled in corresponding branch cavity
The minimum monitoring concentration of track substance, rate of release and monitoring time determine every group of chemical combination tracer dosage.
The present invention is include at least the following beneficial effects:
The first, water-soluble solid tracer and oil-soluble solid tracer is form of spherical particles, relative to existing item
Shape or it is blocky it is more uniformly abundant with oil level or aqueous face contact, effectively improve detection accuracy.
The first, fixed link includes outer bar and interior bar, is elastically compressed setting, cooperates the fixed block Matching installation on base tube,
Installation quickly, and passes through the setting of the first accommodating groove, the first spring, filling block, the second accommodating groove, second spring, solid realizing
While the installation of fixed pole, filling block is filled between the receiving groove bottom and the condensation unit free end, is effectively realized
Fixed link is rigidly fixed relative to base tube, improves the stability that whole device uses.
The second, the setting of the first protrusion and the second protrusion is realized on the setting cooperation rotating cylinder of fixed link upper hopper chute and slideway
Cooperate the flexible of fixed link, synchronization does not influence setting stability of the rotating cylinder relative to fixed link, very high swingle fixing-stable
While property, flabellum elongatedness direction installation site is provided.
Third, every group of slow-release solid tracer are installed on the base tube of corresponding every section of oil well to be monitored by installing mechanism
It is interior, while capable of guaranteeing to come into full contact with base liquid in pipe, liquid is not influenced and is entered in base tube by screen casing and base tube space,
Slow-release solid tracer is set as spherical and effectively increases its contact effect and the sustained release uniformity.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of base tube described in one of technical solution of the invention and installing mechanism；
Fig. 2 is the structural schematic diagram of installing mechanism described in one of technical solution of the invention；
Fig. 3 is the structural schematic diagram of installing mechanism described in one of technical solution of the invention；
Fig. 4 is the structural schematic diagram of installing mechanism described in one of technical solution of the invention；
Fig. 5 is the enlarged structure schematic diagram of part A in Fig. 2 of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
The present invention provides a kind of chemical combination tracer, including group number multiple groups identical with horizontal well number of segment to be monitored
Slow-release solid tracer, every group of slow-release solid tracer include:
Water-soluble solid tracer is the spherical shape that diameter is 1-1.2cm, and the water-soluble solid tracer includes quality
Than a kind of fluobenzoic acid class compound, epoxy resin 506 and the maleic anhydride for 1:2:1；
Oil-soluble solid tracer is the spherical shape that diameter is 1-1.2cm, and the oil-soluble solid tracer includes quality
Than a kind of fluobenzoic acid esters compound, epoxy resin 506 and the maleic anhydride for 1:2:1, wherein any two groups slow
The water-soluble chemical tracer released in type solid tracers is different, and the molten chemical tracer of oil is different.
In the above-mentioned technical solutions, fluobenzoic acid class compound (FBAs) is with nontoxic to environment, stability is good, not native
The features such as layer rock absorption, is gradually applied to inter-well tracer test monitoring technical field, which replaces number, substitution position due to fluorine
Set it is different and different, for the analysis method of fluobenzoic acid class compound can be used gas chromatography-mass spectrography, the chromatography of ions,
High performance liquid chromatography etc., fluobenzoic acid esters compound (FBAEs) carry out esterification by parafluorobenzoic acid class compound and are made,
Gas chromatography mass spectrometry method (GC-MS) can be used and carry out quantitative analysis, the preparation method of water-soluble solid tracer specifically: according to weight
Amount is than weighing a kind of corresponding fluobenzoic acid class compound, epoxy resin 506 and maleic anhydride, by fluobenzoic acid class
Close object, the mixing of epoxy resin 506 is placed in 120 DEG C of drying box to mixture softening and becomes low-viscosity (mobile) liquid, the suitable fourth of addition
Enedioic acid acid anhydride stir to maleic anhydride dissolution completely, be placed in mold solidify diameter be 1-1.2cm spherical water
Soluble solids tracer；The preparation method of oil-soluble solid tracer specifically: weigh a kind of corresponding fluorobenzene according to weight ratio
Formic ether compounds, epoxy resin 506 and maleic anhydride mix fluobenzoic acid esters compound, epoxy resin 506
Conjunction, which is placed in 120 DEG C of drying box to mixture softening, becomes low-viscosity (mobile) liquid, and maleic anhydride is added and stirs to along fourth
Enedioic acid acid anhydride dissolution completely, be placed in mold solidify diameter be 1-1.2cm spherical oil-soluble solid tracer；Use this
Kind technical solution, water-soluble solid tracer and oil-soluble solid tracer are form of spherical particles, relative to existing strip
Either blocky it is more uniformly abundant with oil level or aqueous face contact, effectively improves detection accuracy.
As shown in Figs. 1-5, the present invention provides a kind of application method of chemical combination tracer, comprising the following steps:
Pay interval is divided into different number of segment by packer 11 by S1, horizontal well, according to the section that horizontal well is to be monitored
Number determines slow-release solid tracer group number；
S2, every group of slow-release solid tracer are installed on the base tube of corresponding every section of oil well to be monitored by an installing mechanism 2
10 outlet ends that are interior and being located at liquid flow direction in every section of oil well to be monitored, the interior interval of the base tube 10 of every section of oil well to be monitored
Weld two fixed blocks 1, two fixed blocks 1 are arranged about 10 axisymmetrical of base tube, wherein each installing mechanism 2 includes:
Fixed link 3 comprising it is cylindric and solid outer bar 4 and interior bar 5 that peripheral radius is equal, the outer bar 4
One end face, the interior bar 5 an end face all have and the matched fixing groove 40 of the fixed block 1, the outer bar 4 and the interior bar
The end surface shape of 5 end faces with fixing groove 40 is that preferably to match with the inner sidewall of the base tube 10 be arc, the outer bar 4
Other end along its axis direction sunken inside be equipped with holding tank 41,41 longitudinal cross-section of holding tank can be square, described
41 bottom surface middle and upper part of holding tank is recessed inwardly with the first accommodating groove 42, and the longitudinal cross-section of first accommodating groove 42 is rectangular
Shape, and the midpoint of the excessively described holding tank 41 of its a line, affixed first spring 43 in 42 bottom end of the first accommodating groove, the first spring
43 length direction is arranged along the depth direction of the first accommodating groove 42, and the free end of first spring 43 abuts a filling block
44, the top side face of the holding tank 41 is recessed upwards has the second accommodating groove 45, and second accommodating groove 45 is far from holding tank 41
The affixed second spring 46 in one end (bottom end), the length direction of second spring 46 is arranged along the depth direction of the second accommodating groove 45,
The affixed push plate 47 in the free end of the second spring 46, the push plate 47 is parallel to the top side face of the holding tank 41, described interior
The other end of bar 5 be condensed to be formed with the matched condensation unit 50 of the holding tank 41 so that the condensation unit 50 is inserted in the appearance
It receives in slot 41, abuts its free end and the bottom surface of the holding tank 41 when compressing the condensation unit 50, and the outer bar 4 is consolidated
When determining the matching corresponding fixed block 1 of receiving of slot 40, the one end of the filling block 44 far from first spring 43 and the condensation
The free end in portion 50 abuts, i.e. the first spring 43 is in compressive state, the filling block 44 far from first spring 43 one
End is flushed with the open end of the first accommodating groove 42, at this point, second spring 46 is in compressive state, the bottom surface of the push plate 47 and institute
The upper side for stating condensation unit 50 abuts；Stop compression, the first spring 43 successively pushes filling block 44 and the interior bar 5 to make in described
When the matching of fixing groove 40 of bar 5 accommodates corresponding fixed block 1, the length for continuing elongation of the first spring 43 does not influence the second bullet at this time
Spring 46 acts on push plate 47, and the second spring 46 pushes the push plate 47, so move down filling block 44 be filled in it is described
Between 41 bottom surface of holding tank and the condensation unit free end, so that 3 rigidity of fixed link is fixedly arranged in base tube 10, wherein described outer
The periphery of bar 4 and the interior bar 5, which is recessed, has circular sliding slot 51, and 51 side wall of sliding slot of the interior bar 5 is circumferentially spaced to be passed through
Extended at least two slideway 52 is worn, two slideways 52 are arranged along 5 length direction of interior bar；
Rotating cylinder 6, inner sidewall be provided with the first protrusion 60 to match with 4 sliding slot 51 of outer bar and with it is described interior
5 sliding slot 51 of bar match and with one-to-one at least two second protrusion 61 of 5 sliding way of interior bar 52, it is described first protrusion
60 are rotatably set in the sliding slot 51 of the outer bar 4, when the bottom for the free end and the holding tank 41 for compressing the condensation unit 50
Face abuts, and at least two second protrusions 61, which correspond, to be located in slideway 52, stops compression, the second protrusion 61 is slided along slideway 52
To the sliding slot 51 of the interior bar 5, when so that fixed link 3 being fixedly arranged in base tube 10, the rotating cylinder 6 is rotatably sheathed on described
3 periphery of fixed link；
Four flabellums 7, as Figure 2-3, the flabellum 7 are the hollow plate made of rigid mesh, can be class cuboid
Shape, the flabellum 7 are set as and the matched arc of 10 side wall of base tube, four fans close to the both ends of two corresponding fixed blocks 1
Leaf 7 is fixed in 6 periphery of rotating cylinder in right-angled intersection, and spacing card sets multiple filters 70 in the flabellum 7, by the flabellum
Space is divided into branch cavity multiple successively adjacent and perpendicular to the rotating cylinder 6 in 7, and slow-release solid tracer is uniformly filled
In in corresponding branch cavity；
S3, implement tracer test sampling operation according to design sample time and sampling frequency, and complete the sample after sampling
Product examine is surveyed, and determines the type, content of contained chemical tracer in sample, and carry out level according to the content of every kind of chemical tracer
Well monitoring.
In the above-mentioned technical solutions, speed is discharged according to the minimum monitoring concentration of effective probe material, slow-release solid tracer
It spends and it is expected that monitoring time determines every group of chemical combination tracer dosage, wherein in any two groups of slow-release solid tracers
Water-soluble chemical tracer is different, and the molten chemical tracer of oil is different, shows since the formation conditions such as temperature, salinity influence slow-release solid
Track agent rate of release is not certain value, determines slow-release solid tracer referenced when every group of chemical combination tracer dosage
Rate of release is rate of release of the corresponding chemical combination tracer under fixed representative stratum simulated conditions, groove body
Bottom end be to be open opposite one end with groove body, the setting of 44 size of filling block is arranged according to actual needs；In use process,
Before installing mechanism 2 is not installed, it is in compressive state, and fixed, fixed form concretely fix by elastic rubber rope, when stopping is pressed
The matching of fixing groove 40 of cooperation removal elastic rubber rope in face when contracting, the outer bar 4 accommodates corresponding fixed block 1, stops compression, the
One spring 43 successively pushes filling block 44 and the interior bar 5 to match the fixing groove 40 of the interior bar 5 and accommodates corresponding fixed block 1,
Second spring 46 pushes the push plate 47 to move down filling block 44 and is filled in 41 bottom surface of holding tank and the condensation unit certainly
By being fixedly arranged in base tube 10 so that fixed link 3 is rigid (along 3 length direction of fixed link) between end；Using this technical solution,
One, fixed link 3 includes outer bar 4 and interior bar 5, is elastically compressed setting, cooperates 1 Matching installation of fixed block on base tube 10, installation
Quickly, and by the setting of the first accommodating groove 42, the first spring 43, filling block 44, the second accommodating groove 45, second spring 46, exist
While realizing the installation of fixed link 3, by filling block 44 be filled in 41 bottom surface of holding tank and the condensation unit free end it
Between, it effectively realizes the rigidly fixing relative to base tube 10 of fixed link 3, improves the stability that whole device uses；The second, fixed link
The setting of first protrusion 60 and the second protrusion 61 realizes that cooperation is fixed on the setting cooperation rotating cylinder 6 of 3 upper hopper chutes 51 and slideway 52
Bar 3 it is flexible, it is synchronous not influence setting stability of the rotating cylinder 6 relative to fixed link 3, very high swingle stability maintenance it is same
When, provide flabellum 7 elongatedness direction installation site；Third, every group of slow-release solid tracer are installed on pair by installing mechanism 2
It should can guarantee and while liquid comes into full contact in base tube 10, not influence liquid logical in the base tube 10 of every section of oil well to be monitored
Cross screen casing and 10 space of base tube enter in base tube 10, slow-release solid tracer be set as it is spherical effectively increase its contact effect and
It is sustained the uniformity.
In another technical solution, the flabellum 7 is arc, and the arc-shaped side of the flabellum 7 is in the base tube 10
The distance of side wall is not more than 4mm.Using this scheme, increase flabellum 7 and the contact effect between 10 liquid of base tube.
In another technical solution, the fixed block 1 is end face class compatible with 10 weld inner sidewall of base tube
Cuboid, the length of the fixed block 1 are 1.3-1.8cm；
The mesh of the rigid mesh and the filter 70 is rectangular opening, and the circumscribed circle diameter of rectangular opening is 1-2mm.Using this
Kind scheme, increases whole device mounting stability and slow-release solid tracer mounting stability.
In another technical solution, the application method of the chemical combination tracer, which is characterized in that further include:
Multiple arcs baffle 8, multiple arcs baffle 8 and multiple flabellums 7 correspond, the arc-shaped side of each flabellum 7 and corresponding
The arc-shaped side of curved baffle 8 matches docking, the curved baffle 8 vertically with corresponding flabellum 7, same installing mechanism 2
Four curved baffles 8 are located at the same side of corresponding flabellum 7.Using this scheme, increase in flabellum 7 slow-release solid tracer with
10 liquid of base tube contacts uniformity.
Number of devices and treatment scale described herein are for simplifying explanation of the invention.To chemical combination of the present invention
The application of tracer and its application method, modifications and variations will be readily apparent to persons skilled in the art.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (5)
1. the application method of chemical combination tracer, which comprises the following steps:
Chemical combination tracer includes group number multiple groups slow-release solid tracer identical with horizontal well number of segment to be monitored, often
Organizing slow-release solid tracer includes:
Water-soluble solid tracer is the spherical shape that diameter is 1-1.2cm, and the water-soluble solid tracer includes that mass ratio is
A kind of water-soluble chemical tracer, epoxy resin 506 and the maleic anhydride of 1:2:1, wherein water-soluble chemical tracer is fluorine
Benzoic acid derivative；
Oil-soluble solid tracer is the spherical shape that diameter is 1-1.2cm, and the oil-soluble solid tracer includes that mass ratio is
A kind of molten chemical tracer of oil, epoxy resin 506 and the maleic anhydride of 1:2:1, wherein the molten chemical tracer of oil is fluorine
Benzoate compounds；
Wherein, the water-soluble chemical tracer in any two groups of slow-release solid tracers is different, and the molten chemical tracer of oil is different；
S1, slow-release solid tracer group number is determined according to horizontal well number of segment to be monitored；
S2, every group of slow-release solid tracer be installed in the base tube of corresponding every section of oil well to be monitored by an installing mechanism and
The outlet end of liquid flow direction in every section of oil well to be monitored, the base tube of every section of oil well to be monitored interior interval welding two solid
Determine block, two fixed blocks are arranged about base tube axisymmetrical, wherein each installing mechanism includes:
Fixed link comprising be cylindric and outer bar and interior bar that peripheral radius is equal, an end face of the outer bar, it is described in
One end face of bar all have with the matched fixing groove of the fixed block, the other end of the outer bar is along its axis direction sunken inside
Equipped with holding tank, the receiving groove bottom middle and upper part is recessed inwardly with the first accommodating groove, and first accommodating groove bottom end is affixed
First spring, the free end of first spring abut a filling block, and the top side face of the holding tank is recessed upwards has second
Accommodating groove, one end affixed second spring of second accommodating groove far from holding tank, the free end of the second spring is affixed to push away
Plate, the other end of the interior bar be condensed to be formed with the matched condensation unit of the holding tank so that the condensation unit be inserted in it is described
In holding tank, when the free end for compressing the condensation unit is abutted with the bottom surface of the holding tank, and the fixing groove of the outer bar
When with accommodating corresponding fixed block, the free end of the filling block one end and the condensation unit far from first spring is supported
It connects, the bottom surface of the push plate is abutted with the upper side of the condensation unit；Stop compression, the first spring successively pushes filling block and institute
When stating interior bar makes the fixing groove matching of the interior bar accommodate corresponding fixed block, the second spring pushes the push plate, Jin Erxiang
Lower mobile filling block is filled between the receiving groove bottom and the condensation unit free end, so that fixed link is fixedly arranged on base tube
It is interior, wherein the periphery of the outer bar and the interior bar, which is recessed, has circular sliding slot, and the chute wall of the interior bar is circumferentially
Interval is arranged through at least two slideways, two slideways are extended along the interior bar length direction；
Rotating cylinder, inner sidewall be provided with the outer bar sliding slot match first protrusion and with the interior bar sliding slot phase
Match and raised with the interior bar sliding way one-to-one at least two second, the first protrusion rotation is set to the outer bar
In sliding slot, when the free end for compressing the condensation unit is abutted with the bottom surface of the holding tank, at least two second protrusions one are a pair of
It should be located in slideway, stop compression, the second protrusion is along the sliding slot that slideway slides into the interior bar, so that fixed link is fixedly arranged on base
When in pipe, the rotating cylinder turning set is set to the fixed link periphery；
Four flabellums, the flabellum are the hollow plate made of rigid mesh, and four flabellums are fixed in the rotation in right-angled intersection
Cylinder periphery, spacing card sets multiple filters in the flabellum, space in the flabellum is divided into multiple successively adjacent and vertical
In the branch cavity of the rotating cylinder, slow-release solid tracer is uniformly filled in corresponding branch cavity；
S3, implement tracer test sampling operation according to design sample time and sampling frequency, and complete the sample inspection after sampling
It surveys, determines the type, content of contained chemical tracer in sample, and horizontal well prison is carried out according to the content of every kind of chemical tracer
It surveys.
2. the application method of chemical combination tracer as described in claim 1, which is characterized in that the flabellum is arc, institute
Distance of the arc-shaped side of flabellum apart from the base tube inner sidewall is stated no more than 4mm.
3. the application method of chemical combination tracer as described in claim 1, which is characterized in that the fixed block is an end face
Class cuboid compatible with base tube weld inner sidewall, the length of the fixed block are 1.3-1.8cm；
The mesh of the rigid mesh and the filter is rectangular opening, and the circumscribed circle diameter of rectangular opening is 1-2mm.
4. the application method of chemical combination tracer as claimed in claim 2, which is characterized in that further include: multiple arcs gear
Plate, multiple arcs baffle and multiple flabellums correspond, the arc of the arc-shaped side of each flabellum and corresponding curved baffle
Side matching docking, vertically with corresponding flabellum, four curved baffles of same installing mechanism are located at pair the curved baffle
Answer the same side of flabellum.
5. the application method of chemical combination tracer as described in claim 1, which is characterized in that by slow-release solid tracer
It further include according to the minimum monitoring concentration of effective probe material, rate of release and monitoring before being uniformly filled in corresponding branch cavity
Time determines every group of chemical combination tracer dosage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN115288670B (en) * | 2022-07-11 | 2024-08-30 | 重庆伟耘科技发展有限公司 | Oil field tracer medium release device |
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