CN201599021U - Isotopic tracer well mouth insert type injection device - Google Patents
Isotopic tracer well mouth insert type injection device Download PDFInfo
- Publication number
- CN201599021U CN201599021U CN2010201094018U CN201020109401U CN201599021U CN 201599021 U CN201599021 U CN 201599021U CN 2010201094018 U CN2010201094018 U CN 2010201094018U CN 201020109401 U CN201020109401 U CN 201020109401U CN 201599021 U CN201599021 U CN 201599021U
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- tracer
- injection device
- sleeve pipe
- storehouse
- well head
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Abstract
An isotopic tracer well mouth insert type injection device comprises a connecting rod inserted into a well mouth. The connecting rod is provided with an external sleeve, the top end of the sleeve is in control connection with a tracer bin control wheel while the bottom end of the sleeve is provided with a tracer bin, an inner rod is sleeved inside the sleeve, and the top end of the inner rod is in control connection with a crushing control wheel and the lower end of the inner rod is abutted with the tracer bin. The isotopic tracer well mouth insert type injection device is reasonable in structural design, and has the advantages of safety, simple operation, fine sealing property, zero pollution to well mouths, complete tracer injection, low contamination on objects and the like. The injection device has low requirements to the well mouth and valves, and a tracer container is opened inside a sealed pipeline, thereby avoiding polluting the well mouth and occasions and seldom contaminating objects. The tracer is released below all dead corners inside the pipeline without any residue, and is through and complete in injection. In addition, the isotopic tracer well mouth insert type injection device is simple in operation and can perform injection normally and safely even if the valves are out of order.
Description
Technical field
The present invention relates to a kind of device that tracer technique tracer well head injects between the well of oil field that is used for, be particularly useful for the well head plug-in type injection device of the scene injection of radioactive tracer.
Background technology
Tracer technique is a kind of real-time tracking means between the well of oil field, can be used for evaluating oilfield experiment well group flood effectiveness and notes effectively and adopt corresponding relation, dynamically is familiar with for improving oil reservoir, optimizes the oil reservoir development scheme and improves ultimate recovery.
Mainly use isotopic tracer at present in the world between the well of oil field in the tracer technique, and the injection of isotopic tracer is a key link of tracer technique between the well of oil field.The injection mode of isotopic tracer mainly contains instantaneous injection (point type injection) mode and continuous injection mode, and what generally use in China is instantaneous injection mode.Traditional injection mode is that tracer is put in production valve and a bit of pipeline of test in the middle of the valve in the head valve group, relies on to inject water and tracer is pushed underground again.Because isotopic tracer has certain radioactivity, pays particular attention to radiocontamination and pollution in injection process, considers radioactive factor, there is following shortcoming in traditional injection mode in operating process: 1. the conditional request of pair well head is very high; 2. owing to be open operation, the article of contamination are more, cause near the ground pollution of well head easily; 3, because the dead angle, many places is arranged, can form the dead band between valve, it is underground to cause having a small amount of tracer not enter; 4, complicated operation needs three valves of switch well head each 3 times, also needs to test the sealing of valve, gets rid of the steps such as residual water in the pipeline; 5, if defective valve, the danger that has tracer to leak, or the like.Therefore between well both domestic and external tracer technique service company all be devoted to develop a kind of can be safely, isotopic tracer injection device easily, solve the injection problem of isotopic tracer.
Summary of the invention
The invention provides a kind of isotopic tracer well head plug-in type injection device of the deficiency at above-mentioned traditional injection technique, this injection device is a high pressure seal, has safe, simple to operate, good airproof performance, can not pollute well head, tracer injects fully, stain characteristics such as article are few.This injection device requires smallerly to well head, and the quality of valve is to injecting not influence; The tracer container is opened in the pipeline of sealing, does not have the pollution to well head and place, and the article of contamination are few; Tracer is released below all dead angle in pipeline, does not exist tracer to remain in the possibility in dead band in the pipe, injection thoroughly, fully; Simple to operate.Defective valve also can be normal, safe inject.
Technical scheme provided by the present invention is as follows:
A kind of isotopic tracer well head plug-in type injection device, it is characterized in that described injection device comprises that one inserts the connecting rod in the well head, this connecting rod has the sleeve pipe of an outside, the top of this sleeve pipe and tracer storehouse control wheel control connection, the bottom of this sleeve pipe is provided with a tracer storehouse, suit is provided with bar in the described sleeve pipe, the top of bar and a crushing control wheel control connection in this, the conflict tracer storehouse, lower end of bar in this.
Concretely, the outside of described sleeve pipe has and the well head test port portion that is tightly connected, and the sealing connecting portion is provided with taper high pressure sealing screw thread made in Great Britain.
Among one embodiment, the upper end of described interior bar is extended sleeve pipe and is connected crushing control wheel; Tracer storehouse control wheel is positioned at the bottom of crushing control wheel.
Among another embodiment, described tracer storehouse is installed in the bottom of sleeve pipe with contraction structure.
Among the embodiment, the side on the described tracer storehouse offers a netted opening again, and this netted opening is in closed state when being contracted in the sleeve pipe in the tracer storehouse.
Among the another embodiment, the lower end of described sleeve pipe is a closed port, offers through hole on the sleeve pipe.
This isotopic tracer well head plug-in type injection device has adopted with water injection well Jing Shu and has been connected, directly the tracer container is placed in the latter half of water injection well well tree four-way, and under the state of water injection well operate as normal, opens the method that the tagging agent container injects.Realized the people and around natural environment and tracer fully by the operation of isolating, guaranteed the people and on every side natural environment can not be subjected to the influence of tracer.
The sealing that guarantees the junction with the injection well testing valve upper end corresponding taper high pressure sealing screw thread made in Great Britain of test port can be adopted in the well head coupling part of this plug-in type injection device.The cover external diameter of pipe of the shaft portion in the fill-in well tree is far smaller than water injection well well head internal diameter of the pipeline, can not hinder to inject flowing of water.Discharge tracer in order to make operating personnel externally control injection device in the well tree, the shaft portion of this injection device can be designed to double-decker: outermost sleeve pipe mainly plays the effect of sealing as shell; Being connected with tracer storehouse control wheel above the sleeve pipe, being connected with the tracer storehouse below, mainly is to play the effect that control tracer storehouse moves up and down; Bar is connected with crushing control wheel in innermost, and main effect is a crushing tracer container.Do not crushed by bottom pressure before recovering the water injection well flow process for preventing the tracer container, the tracer storehouse that tracer is housed can be designed to telescopic type, can the tracer storehouse be shunk back in the outer field sleeve pipe by the tracer storehouse control wheel of upper end, this moment, outer field sleeve pipe sealed fully, can guarantee can be with the crushing of tracer container in normal the injecting process yet, and the well head pollution that causes is revealed in the junction of having avoided occurring because of factors such as installations.
In order to prevent that tracer from remaining in the dead angle in the water injection well well tree in injection process, the shaft portion that can make different length at the size of the common water injection well Jing Shu in domestic each oil field, guarantee when any water injection well injects, the tracer storehouse that the tracer container is housed can both to be placed in water injection well well tree four-way Water filling valve below with the space that produces above the valve in, guaranteeing to inject water can inject the shaft bottom with tracer fully, and can not remain in Jing Shuzhong.
For the container that can guarantee to be equipped with tracer can be opened in the well tree, can when needs discharge tracer, rotate crushing control wheel by the flexible interior bar of crushing control wheel (5) control, bar crushing tracer container can flow out tracer fully in promoting.
In order to make tracer as much as possible enter the stratum with injecting water, the tracer storehouse can be the cylindrical of iron net for a side, and the operating position in tracer storehouse just in time is in injection waterpipe below, by injecting water washing away to netted tracer storehouse, can bring into tracer in the water injection well fully, the fragment of large stretch of tracer container is then blocked by the wire lath in tracer storehouse, stays in the tracer storehouse.
The beneficial effects of the utility model are, this isotopic tracer well head plug-in type injection device reasonable in design has safe, simple to operate, good airproof performance, can not pollute well head, tracer injects fully, stain characteristics such as article are few.This injection device requires smallerly to well head, and the quality of valve is to injecting not influence; The tracer container is opened in the pipeline of sealing, does not have the pollution to well head and place, and the article of contamination are few; Tracer is released below all dead angle in pipeline, does not exist tracer to remain in the possibility in dead band in the pipe, injection thoroughly, fully; Simple to operate.Defective valve also can be normal, safe inject.
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
Description of drawings
Fig. 1 is the structural representation of the utility model one specific embodiment;
Fig. 2 is a water injection well well tree structure diagram in the utility model specific embodiment;
Fig. 3 is the working state schematic representation of the utility model specific embodiment.
The specific embodiment
Below in conjunction with Fig. 1, Fig. 2 and Fig. 3 this isotopic tracer well head plug-in type injection device is described.
As shown in Figure 1, this isotopic tracer well head plug-in type injection device has a connecting rod that inserts in the well head, this connecting rod has the sleeve pipe of an outside, the top of this sleeve pipe and tracer storehouse control wheel control connection, the bottom of this sleeve pipe is provided with a tracer storehouse, suit is provided with bar in the sleeve pipe, the top of bar and a crushing control wheel control connection in this, the conflict tracer storehouse, lower end of bar in this.The outside of sleeve pipe has and the well head test port portion that is tightly connected, and the sealing connecting portion is provided with taper high pressure sealing screw thread made in Great Britain.The upper end of interior bar is extended sleeve pipe and is connected crushing control wheel; Tracer storehouse control wheel is positioned at the bottom of crushing control wheel.The tracer storehouse is installed in the bottom of sleeve pipe with contraction structure.Side on the tracer storehouse offers a netted opening, and the lower end of sleeve pipe is a closed port.
As shown in Figure 2, when carrying out implant operation,, open pressure relief valve D, the pressure in the four-way is released, open test valve B then and unload plug on the injection well testing mouth, and close pressure relief valve D at first with the Water filling valve C of water injection well with produce valve A and close.Switch with regard to the flow process of having finished a valve like this.
According to the well tree model of the water injection well at scene, select respective length sleeve pipe and in bar 6.After connection is finished, tracer storehouse control wheel 4 turns clockwise, inner sleeve is released outer tube, the container that tracer is housed is packed in the tracer storehouse, again tracer storehouse and inner sleeve are coupled together, be rotated counterclockwise tracer storehouse control wheel then, will be equipped with in the tracer storehouse income outer tube of tracer, and make bottom, tracer storehouse and outer tube sealing.As shown in Figure 3, this injection device is inserted the well head of opening, link is connected with the injection well testing mouth.Whether after connecting, open earlier and produce valve A, check whether each connecting portion has leakage, do not open Water filling valve C again as having to leak, checking once more has leakage.After definite all junctions all do not have leakage, tracer storehouse control wheel turns clockwise, release is connected the tracer storehouse on the inner sleeve, crushing control wheel then turns clockwise, bar in releasing up to crushing tracer container, is regained bar in the part again, allow injection water can thoroughly wash away the tracer storehouse, bring whole tracers into shaft bottom.Through experiment, this process of washing away probably needed just tracer all can be washed away totally in 5-10 minute.
After finishing injection, wheel is controlled in rotation crushing control wheel and tracer storehouse respectively, bar and inner sleeve in regaining, close Water filling valve C and produce valve A, open pressure relief valve D, treat after pressure release finishes this device to be disassembled from well head, set up the shaft mouth test plug and tighten, close pressure relief valve D and test valve B, open Water filling valve C and produce valve A.So just finished once complete injection process.
Claims (6)
1. isotopic tracer well head plug-in type injection device, it is characterized in that described injection device comprises that one inserts the connecting rod in the well head, this connecting rod has the sleeve pipe of an outside, the top of this sleeve pipe and tracer storehouse control wheel control connection, the bottom of this sleeve pipe is provided with a tracer storehouse, suit is provided with bar in the described sleeve pipe, the top of bar and a crushing control wheel control connection in this, the conflict tracer storehouse, lower end of bar in this.
2. isotopic tracer well head plug-in type injection device according to claim 1, the outside that it is characterized in that described sleeve pipe have and the well head test port portion that is tightly connected, and the sealing connecting portion is provided with taper high pressure sealing screw thread made in Great Britain.
3. isotopic tracer well head plug-in type injection device according to claim 1 is characterized in that sleeve pipe connection crushing control wheel is extended in the upper end of described interior bar; Tracer storehouse control wheel is positioned at the bottom of crushing control wheel.
4. isotopic tracer well head plug-in type injection device according to claim 1 is characterized in that described tracer storehouse is installed in the bottom of sleeve pipe with contraction structure.
5. isotopic tracer well head plug-in type injection device according to claim 4 is characterized in that the side on the described tracer storehouse offers a netted opening, and this netted opening is in closed state when being contracted in the sleeve pipe in the tracer storehouse.
6. isotopic tracer well head plug-in type injection device according to claim 1 is characterized in that the lower end of described sleeve pipe is a closed port, offers through hole on the sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201094018U CN201599021U (en) | 2010-02-08 | 2010-02-08 | Isotopic tracer well mouth insert type injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201094018U CN201599021U (en) | 2010-02-08 | 2010-02-08 | Isotopic tracer well mouth insert type injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599021U true CN201599021U (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201094018U Expired - Lifetime CN201599021U (en) | 2010-02-08 | 2010-02-08 | Isotopic tracer well mouth insert type injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392633A (en) * | 2011-11-07 | 2012-03-28 | 中国石油大学(华东) | New method for releasing underground radioactive tracer and device thereof |
| CN114382463A (en) * | 2022-01-18 | 2022-04-22 | 河南省科学院同位素研究所有限责任公司 | Radioactive isotope well logging tracer screening device in pit |
-
2010
- 2010-02-08 CN CN2010201094018U patent/CN201599021U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392633A (en) * | 2011-11-07 | 2012-03-28 | 中国石油大学(华东) | New method for releasing underground radioactive tracer and device thereof |
| CN102392633B (en) * | 2011-11-07 | 2014-07-16 | 中国石油大学(华东) | New method for releasing underground radioactive tracer and device thereof |
| CN114382463A (en) * | 2022-01-18 | 2022-04-22 | 河南省科学院同位素研究所有限责任公司 | Radioactive isotope well logging tracer screening device in pit |
| CN114382463B (en) * | 2022-01-18 | 2022-08-19 | 河南省科学院同位素研究所有限责任公司 | Radioactive isotope well logging tracer screening device in pit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |