CN210714678U - Tracer nipple for testing oil well liquid production profile - Google Patents
Tracer nipple for testing oil well liquid production profile Download PDFInfo
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- CN210714678U CN210714678U CN201921285641.0U CN201921285641U CN210714678U CN 210714678 U CN210714678 U CN 210714678U CN 201921285641 U CN201921285641 U CN 201921285641U CN 210714678 U CN210714678 U CN 210714678U
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- production profile
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- 239000000700 radioactive tracer Substances 0.000 title claims abstract description 61
- 210000002445 nipple Anatomy 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 239000003129 oil well Substances 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 title abstract description 9
- 239000012530 fluid Substances 0.000 claims description 20
- 239000011159 matrix material Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
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- 238000002347 injection Methods 0.000 description 2
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000011157 data evaluation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
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- 238000005070 sampling Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of the oil field well logging, concretely relates to be used for oil well to produce liquid profile test spike agent nipple joint. The utility model discloses an outer fringe of lower extreme is equipped with the nipple joint body that oil pipe pin thread and upper end were equipped with the oil pipe box, connects the organic setting of the nipple joint overcoat that lateral wall and external diameter are the same with oil pipe's external diameter at nipple joint body middle part, the inside wall opened the draw-in groove along the axial and imbed the tracer paster in the nipple joint overcoat draw-in groove, need not to pour into the tracer into the stratum, just can be accurate with each section water production in the pit and the accurate well that carries out of time-varying information. The utility model has the advantages of simple structure, the effectual security that improves the operation, and adopt the utility model discloses operate, the operating cost is lower.
Description
Technical Field
The utility model belongs to the technical field of the oil field well logging, concretely relates to be used for oil well to produce liquid profile test spike agent nipple joint.
Background
In recent years, a horizontal well is used as an important means for effectively developing a low-permeability oil reservoir of an oil field, the application scale is gradually enlarged, but the horizontal well is influenced by reservoir heterogeneity and water injection development along with the continuation of production time, underground large circulation of a water injection well and a production well is formed after water breakthrough of the horizontal well, the water content is continuously increased, the production capacity of the oil well is reduced, some dead oil zones are formed underground, the service life of the oil well is shortened, the production cost is increased, and the economic benefit of oil field development is greatly reduced. Therefore, the production dynamic evaluation of the horizontal well, especially the monitoring of the horizontal well section segmented output condition, is more and more important for the design, modification and production management of the horizontal well in future.
The horizontal well liquid production profile testing technology is the 'eyes' of oil reservoir geological engineers, plays a role in oil well diagnosis, and is an important means for guiding oil field development. According to the traditional horizontal well fluid production profile testing technology, parameters such as downhole flow and water content are obtained to obtain a segmented fluid production profile, the problems of three aspects of a logging process, sensing series selection and data evaluation need to be solved, and the problems that a logging instrument cannot enter a specified position, testing data are inaccurate and the like exist. The tracer technology utilizes the difference of dispersion coefficients of the tracer in different media to realize the tracing of specific media, and particularly can accurately carry water production and time-varying information of each section in the well out of the well, and the tracer is required to be injected into a stratum in the conventional technology though the functions presented by an interpretation system. Therefore, the tracer nipple for testing the oil well fluid production profile becomes a difficult problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tracer nipple for testing the liquid production profile of an oil well, and aims to provide a tracer nipple which is suitable for testing the liquid production profile of a horizontal well in sections and does not need to inject a tracer into the stratum; one of the purpose lies in providing a simple structure, improves the safe and low tracer nipple joint of oil well production fluid section test of operation cost.
In order to achieve the above object, the utility model adopts the following technical scheme:
a tracer sub for use in oil well fluid production profile testing, comprising:
the pipe nipple comprises a nipple body, wherein an oil pipe male buckle is arranged on the outer edge of the lower end of the nipple body, and an oil pipe female buckle is arranged on the inner edge of the upper end of the nipple body;
the short section outer sleeve is connected to the outer side wall of the middle part of the short section body, the outer diameter of the short section outer sleeve is the same as that of the oil pipe, and a clamping groove is formed in the inner side wall of the short section outer sleeve along the axial direction;
the tracer paster, the tracer paster is connected in the draw-in groove.
The nipple outer sleeve is connected with the nipple body through threads.
Three clamping grooves are formed in the short section outer sleeve, and the central angle of each clamping groove notch arc line is 55-65 degrees.
The central angle of each arc line of the notch of the clamping groove is 60 degrees.
The three clamping grooves are uniformly distributed on the inner side wall of the short section outer sleeve.
The tracer patch comprises a patch tracing matrix and a solid tracer; the patch tracing matrix is prefabricated, and the solid tracer is preset in the matrix.
The patch tracing matrix is a net structure.
The tracer paster be connected with the draw-in groove of nipple joint overcoat through the fixed pin.
Has the advantages that:
the utility model discloses an outer fringe of lower extreme is equipped with the nipple joint body that oil pipe pin thread and upper end were equipped with the oil pipe box, connects the organic setting of the nipple joint overcoat that lateral wall and external diameter are the same with oil pipe's external diameter at nipple joint body middle part, the inside wall opened the draw-in groove along the axial and imbed the tracer paster in the nipple joint overcoat draw-in groove, need not to pour into the tracer into the stratum, just can be accurate with each section water production in the pit and the accurate well that carries out of time-varying information. The utility model has the advantages of simple structure, the effectual security that improves the operation, and adopt the utility model discloses operate, the operating cost is lower.
The above description is only an overview of the technical solution of the present invention, and in order to clearly understand the technical means of the present invention and to implement the technical solution according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
figure 2 is the utility model discloses tracer paster structure schematic diagram.
Fig. 3 is the utility model discloses nipple overcoat structure sketch map.
In the figure: 1-a nipple body; 2-fixing the pin; 3-short section jacket; 4-oil pipe male buckle; 5-oil pipe female buckle; 6-a clamping groove; 7-tracer patch; 71-patch tracing matrix; 72-solid tracer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
a tracer sub for use in testing the fluid production profile of an oil well, as shown in figure 1, comprising:
the pipe nipple comprises a nipple body 1, wherein an oil pipe male buckle 4 is arranged on the outer edge of the lower end of the nipple body 1, and an oil pipe female buckle 5 is arranged on the inner edge of the upper end of the nipple body 1;
the short section outer sleeve 3 is connected to the outer side wall of the middle part of the short section body 1, the outer diameter of the short section outer sleeve 3 is the same as that of the oil pipe, and a clamping groove 6 is formed in the inner side wall of the short section outer sleeve 3 in the axial direction;
tracer paster 7, tracer paster 7 imbeds in draw-in groove 6.
Before testing, according to the number of testing sections, the nipple body 1 carrying different tracer patches 7 is conveniently connected with an oil pipe through an oil pipe male buckle 4 arranged on the outer edge of the lower end of the nipple body and an oil pipe female buckle 5 arranged on the inner edge of the upper end of the nipple body, and is put into a specified section along with the oil pipe for production and well-opening production. The fluids in different intervals flow through the corresponding tracer nipples, the diffusion amount of the tracer and the output amount of the interval are in a linear relation, and the oil production and the water production of each interval can be quantified through well mouth sampling analysis, so that the liquid production profile test of the horizontal well is realized. After the test pressure test is finished, the test pipe column is lifted out, and the tracer short section is detached.
The utility model has the advantages of simple structure, need not increase the operation flow during the test, also need not to pour into the spike agent into the stratum, the effectual security that improves the test operation, and adopt the utility model discloses operate, the operating cost is lower.
Example two:
according to the embodiment shown in figure 1, the tracer nipple for testing the oil well fluid production profile is different from the first embodiment in that: the nipple outer sleeve 3 is connected with the nipple body 1 through threads.
When in actual use, adopt nipple joint overcoat 3 to be connected through the technical scheme that screw thread and nipple joint body 1 are connected, can be convenient connect 3 nipple joint bodies 1 of nipple joint overcoat.
Example three:
according to the following description, the tracer nipple for testing the oil well fluid production profile shown in fig. 1 and 3 is different from the first embodiment in that: three clamping grooves 6 are formed in the short section outer sleeve 3, and the central angle of each clamping groove notch arc line is 55-65 degrees.
Preferably, the central angle subtended by each slot opening arc is 60 °.
Preferably, the three clamping grooves 6 are uniformly distributed on the inner side wall of the short section outer sleeve 3.
In actual use, the technical scheme that the central angle of each clamping groove is 55-65 degrees, and three clamping grooves 6 are uniformly distributed on the inner side wall of the short section outer sleeve 3 is adopted, so that no matter what position the short section is in the radial direction, at least one group of patches are ensured to be in the full-liquid soaking position in different states, and the problems of incapability of measuring the low-liquid-volume well half-pipe flow and inaccuracy in measurement are solved. The best effect is achieved when the central angle of each clamping groove is 60 degrees.
Example four:
according to a tracer nipple for oil well fluid production profile testing shown in fig. 2, the difference from the first embodiment is that: the tracer patch 7 comprises a patch tracing matrix 71 and a solid tracer 72; the patch tracer matrix 71 is prefabricated, and the solid tracer 72 is preset in the matrix.
When in actual use, directly go into the well behind the draw-in groove 6 on the nipple joint overcoat 3 with prefabricated tracer paster 7 is directly put into, very convenient, not only save time, can also put into different tracer pasters according to different demands, convenient operation and cost are lower. The patch tracking matrix 71 in this embodiment is preformed from a polymer. In this embodiment, the patch matrix 71 is prepared by using a polymer insoluble in any solvent, such as phenolic resin and polyglycerol phthalate, so that the patch matrix 71 has a certain binding force, thereby ensuring that the tracer 72 has a stable dissolution speed.
Example five:
according to the tracer nipple for testing the oil well fluid production profile shown in the figure 2, the difference from the fourth embodiment is that: the patch tracing matrix 71 is a net structure.
In actual use, the patch tracing matrix 71 is of a net structure, so that the solid tracer 72 in the patch tracing matrix 71 can be conveniently diffused, and the accuracy of a test result is ensured.
Example six:
according to the embodiment shown in figure 1, the tracer nipple for testing the oil well fluid production profile is different from the first embodiment in that: and the tracer patch 7 is connected with the clamping groove 6 of the short section outer sleeve 3 through the fixing pin 2.
When in actual use, nipple joint overcoat draw-in groove 6 with tracer patch 7 is connected through a plurality of fixing pin 2 for the connection between nipple joint body 1 and the nipple joint overcoat 3 is more firm.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
The foregoing is illustrative of the preferred embodiments of the present invention, and the present invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a be used for oil well production fluid section test tracer nipple joint which characterized in that: comprises that
The pipe nipple comprises a nipple body (1), wherein an oil pipe male buckle (4) is arranged on the outer edge of the lower end of the nipple body (1), and an oil pipe female buckle (5) is arranged on the inner edge of the upper end of the nipple body (1);
the short section outer sleeve (3) is connected to the outer side wall of the middle of the short section body (1), the outer diameter of the short section outer sleeve (3) is the same as that of the oil pipe, and a clamping groove (6) is formed in the inner side wall of the short section outer sleeve (3) in the axial direction;
tracer paster (7), tracer paster (7) are connected in draw-in groove (6).
2. The tracer sub for use in oil well fluid production profile testing of claim 1, wherein: the nipple outer sleeve (3) is connected with the nipple body (1) through threads.
3. The tracer sub for use in oil well fluid production profile testing of claim 1, wherein: three clamping grooves (6) on the short section outer sleeve (3) are formed, and the central angle of each clamping groove notch arc line is 55-65 degrees.
4. The tracer sub for use in oil well fluid production profile testing according to claim 3, wherein: the central angle of the arc line of the notch of each clamping groove is 60 degrees.
5. The tracer sub for use in oil well fluid production profile testing according to claim 3, wherein: the three clamping grooves (6) are uniformly distributed on the inner side wall of the short section outer sleeve (3).
6. The tracer sub for use in oil well fluid production profile testing of claim 1, wherein: said tracer patch (7) comprising a patch tracing matrix (71) and a solid tracer (72); the patch tracer matrix (71) is prefabricated, and the solid tracer (72) is preset in the matrix.
7. The tracer sub for use in oil well fluid production profile testing according to claim 6, wherein: the patch tracing matrix (71) is of a net structure.
8. The tracer sub for use in oil well fluid production profile testing according to claim 1 or 6, wherein: the tracer patch (7) is connected with the clamping groove (6) of the short section sleeve (3) through the fixing pin (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921285641.0U CN210714678U (en) | 2019-08-09 | 2019-08-09 | Tracer nipple for testing oil well liquid production profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921285641.0U CN210714678U (en) | 2019-08-09 | 2019-08-09 | Tracer nipple for testing oil well liquid production profile |
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| Publication Number | Publication Date |
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| CN210714678U true CN210714678U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921285641.0U Active CN210714678U (en) | 2019-08-09 | 2019-08-09 | Tracer nipple for testing oil well liquid production profile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324431A (en) * | 2020-09-27 | 2021-02-05 | 四川瑞都石油工程技术服务有限公司 | Multi-spectral-band high-resolution intelligent production test method for oil and gas well |
| CN118030044A (en) * | 2024-02-29 | 2024-05-14 | 捷贝通石油技术集团股份有限公司 | Method and device for monitoring productivity profile of long-acting tracer in real time |
-
2019
- 2019-08-09 CN CN201921285641.0U patent/CN210714678U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324431A (en) * | 2020-09-27 | 2021-02-05 | 四川瑞都石油工程技术服务有限公司 | Multi-spectral-band high-resolution intelligent production test method for oil and gas well |
| CN112324431B (en) * | 2020-09-27 | 2023-01-10 | 四川瑞都石油工程技术服务有限公司 | Multi-spectral-band high-resolution intelligent production test method for oil and gas well |
| CN118030044A (en) * | 2024-02-29 | 2024-05-14 | 捷贝通石油技术集团股份有限公司 | Method and device for monitoring productivity profile of long-acting tracer in real time |
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