CN2283129Y - Injector for polymer injection profile logging tracer - Google Patents
Injector for polymer injection profile logging tracer Download PDFInfo
- Publication number
- CN2283129Y CN2283129Y CN96243760U CN96243760U CN2283129Y CN 2283129 Y CN2283129 Y CN 2283129Y CN 96243760 U CN96243760 U CN 96243760U CN 96243760 U CN96243760 U CN 96243760U CN 2283129 Y CN2283129 Y CN 2283129Y
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- China
- Prior art keywords
- injector
- tracer
- well
- storage cylinder
- electromagnetic pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to an injector for polymer injection profile logging tracer, which is mainly composed of an electromagnetic pump 1, a liquid storage cylinder 2, and a one-way valve 3. The utility model can be put into the well along with a small diameter nature Y logging device. Under the well, the electromagnetic pump 1 can be operated after turning on the power, and thereby, the polymer liquid in the well hole can be continuously pumped into the liquid storage cylinder 2 of the injector to continuously dilute suspending liquid of the tracer of the liquid storage cylinder 2, and then the suspending liquid is slowly and uniformly injected into the well through the one-way valve 3. The utility model solves the problem that Ba < 131 > microballoon spheres can not be uniformly scattered after a releaser is opened using Ba < 131 > microballoon spheres as tracer in the injection polymer water well.
Description
The utility model uses In when relating to polymer injection well survey injection profile
113mThe injector of tracer.
At latter period of oilfield development, by water injection well adopt the miscible displacement of reservoir, heat washes the displacement of reservoir oil and polymer displacement of reservoir oil improves recovery ratio.Various displacement of reservoir oil modes all are that carrier injects the down-hole with water, and the engineering effort of variety of way all will be monitored by logging technique.In common water injection well, adopt Ba mostly
131Microballoon is made tracer, surveyed base value with minor diameter gamma-ray logging instrument after, open release in the down-hole, allow wherein Ba
131Microballoon scatters equably with injecting water, and filter with the stratum water absorption with being directly proportional and to amass in the perforation on suction stratum, then monitors to contrast, and just can calculate the relative liquid absorption on each imbibition stratum of this water injection well.At present, the polymer injection field experiment in many oil fields has obtained apparent in view geological effect, and the recovery ratio in oil field is improved.But in the well of the polymer injection aqueous solution, because the viscosity height of aqueous solutions of polymers adopts downhole instrument to discharge Ba when surveying fluid entry profile
131The way of tracer microballoon is incompatible, Ba
131Microballoon is prone in aqueous solutions of polymers and unites, poly-heap phenomenon, and well-log information is created a false impression, and can not analyze oil displacement efficiency exactly.For this reason, need to change tracer and injection mode, make well-log information correctly reflect the imbibition situation on stratum.
The purpose of this utility model is exactly the problem that runs in surveying the fluid entry profile process in the polymer injection well for solving, and a kind of polymer injection profile logging In is provided
113mThe injector of tracer, simple and easy to do, safe and reliable, can measure fluid entry profile exactly.
The purpose of this utility model can reach by the following technical programs: adopt In
113m(indium) makes the well logging tracer, and because of its half-life weak point, toxicity is low, and can pour into the aqueous solutions of polymers preparation on ground can be with the In in the minor diameter gamma-ray logging instrument lower going-into-well
113mTracer injector, this injector is a rectangular container cartridge, the upper end is connected with head harness, electromagnetic pump and inlet opening are equipped with in the top of container cartridge, and one way valve and leakage opening are arranged at the bottom of container letter, when minor diameter gamma-ray logging instrument has been surveyed base value, when bringing up to the position of the above 50-100 rice in perforation layer position, energising is opened electromagnetic pump, and the aqueous solutions of polymers in well letter this moment pumps into container cartridge through inlet opening, forces the In in the container cartridge
113mThe suspension of tracer enters down-hole formation through the one way valve and the leakage opening of container cartridge bottom with injecting liquid, and evenly filter is amassed in the perforation on imbibition stratum dispersedly.Repeat curve by measuring, but then comparative analysis goes out the relative liquid absorption on stratum, adopt conventional Ba thereby can solve at accepting fluid zone
131Microballoon is made the problem that the well logging tracer is united, gathered heap in the polymer injection well, can realize the design's purpose.
The utility model is compared with above-mentioned prior art can have following effect: adopt In
113mMake the well logging tracer, because of its half-life weak point, toxicity is low, can pour in the ground preparation.According to In
113mAbove-mentioned characteristics design this injector.Injector is rectangular container cartridge, and In is filled in inside
113mThe suspension of tracer and aqueous solutions of polymers～0.2 liter, electromagnetic pump and the inlet opening that control discharges is equipped with at the container cartridge top, one way valve and fluid hole are arranged at the bottom, after well surveying finishes base value under the injector, energising can make electromagnetic pump work, aqueous solutions of polymers in the pit shaft constantly is pumped in the tube of container, reaches the certain pressure one-way valve opens, makes In in the injector
113mSuspension can slowly and equably discharge in the down-hole formation through fluid hole, overcome Ba
131Microballoon is united in aqueous solutions of polymers, the problem of poly-heap, can satisfy the logging technique requirement, thereby can measure qualified polymer injection profile curve.
Accompanying drawing 1 is this injector structures diagrammatic sketch
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By this injector shown in the accompanying drawing, the upper end head harness that is threaded, the lower end minor diameter gamma-ray logging instrument that is threaded.
The structure of injector is described below: this injector has electromagnetic pump 1, and 3 three parts of liquid storage cylinder 2 and one way valve constitute.Electromagnetic pump 1 is last, and liquid storage cylinder 2 is placed in the middle, and one way valve 3 all is threaded between the two, and seal with elastometic washer is arranged down.
On the shell 7 of electromagnetic pump 1 inlet opening 8 is arranged, on the housing 9 of one way valve 3 liquid filling pore 10 is arranged, seal cover 11 and leakage opening 12.
The fluid pump head 5 of the electromagnetic pump 1 of this injector has an elongated metal tube 13 to do neck, makes the Pump for giving-out head can be deep into the bottom of liquid storage cylinder 2.The feed liquor valve 4 and the fluid pump head 5 of electromagnetic pump 1 all stud with filter screen 6.
During well logging, can be in advance 5-10 millicurie In
113mThe abundant mixing of activated carbon tracer and aqueous solutions of polymers forms suspension, fills liquid storage cylinder through liquid filling pore 10, the seal cover 11 of screwing on afterwards.Then, this injector is gone into the well with minor diameter gamma-ray logging instrument, under the situation of not stopping to annotate, 100 meters more than the imbibition stratum will be mentioned after having surveyed the base value curve on the instrument, electromagnetic pump 1 is opened in energising, and the aqueous solutions of polymers in the pit shaft enters liquid storage cylinder 2 through inlet opening 8, makes the In in the liquid storage cylinder 2
113mThe tracer suspension is diluted, and opens one way valve 3 under the promotion that pumps into aqueous solutions of polymers, makes the tracer suspension in the liquid storage cylinder 2 very slow, and very equal ground warp leakage opening 12 enters in the perforation tunnel on imbibition stratum with injecting liquid.In in liquid storage cylinder 2
113mThe tracer suspension discharges and finishes, and surveys once natural γ again and repeats the fluid entry profile that curve can be measured the polymer injection well.
Claims (2)
1, a kind of injector of polymer injection profile logging tracer is characterized in that:
A, the total electromagnetic pump (1) of this injector, liquid storage cylinder (2) and (3) three parts of one way valve are formed, and electromagnetic pump (1) is last, and liquid storage cylinder (2) is placed in the middle, one way valve
(3) following, all be threaded between the three, and seal with elastometic washer arranged:
Inlet opening (8) is arranged on the shell (7) of b, electromagnetic pump (1):
On the housing (9) of c, one way valve (3) liquid filling pore (10) is arranged, seal cover (11) and leakage opening (12).
2, injector according to claim 1 is characterized in that:
The fluid pump head (5) of a, electromagnetic pump (1) has an elongated metal tube (13) to do neck, makes the Pump for giving-out head can be deep into the bottom of liquid storage cylinder (2);
The feed liquor valve (4) and the fluid pump head (5) of b, electromagnetic pump (1) all stud with filter screen (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96243760U CN2283129Y (en) | 1996-10-22 | 1996-10-22 | Injector for polymer injection profile logging tracer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96243760U CN2283129Y (en) | 1996-10-22 | 1996-10-22 | Injector for polymer injection profile logging tracer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2283129Y true CN2283129Y (en) | 1998-06-03 |
Family
ID=33917313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96243760U Expired - Fee Related CN2283129Y (en) | 1996-10-22 | 1996-10-22 | Injector for polymer injection profile logging tracer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2283129Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122230B (en) * | 2006-08-08 | 2012-07-04 | 谢晓峰 | Tracing flow polymer-injected profile logging device, tracing agent and confection device and logging method |
-
1996
- 1996-10-22 CN CN96243760U patent/CN2283129Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122230B (en) * | 2006-08-08 | 2012-07-04 | 谢晓峰 | Tracing flow polymer-injected profile logging device, tracing agent and confection device and logging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |