CN201416445Y - Polymer injection well head sampler - Google Patents
Polymer injection well head sampler Download PDFInfo
- Publication number
- CN201416445Y CN201416445Y CN200920026583XU CN200920026583U CN201416445Y CN 201416445 Y CN201416445 Y CN 201416445Y CN 200920026583X U CN200920026583X U CN 200920026583XU CN 200920026583 U CN200920026583 U CN 200920026583U CN 201416445 Y CN201416445 Y CN 201416445Y
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- main body
- injection well
- back pressure
- valve
- connector
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Abstract
A polymer injection well head sampler comprises a connector, a wing union, a main body, a connecting bar piston, a back pressure cavity, a pressure cap, a hand handle, a back pressure valve and a sampling valve, and is characterized in that the lower end of the main body is connected with the connector, the upper end is connected with the pressure cap, the piston end of the connecting bar piston is installed in an inner cavity of the main body, the connecting bar end is connected with the hand handle outside the main body, the back pressure valve is installed on the upper portion of the main body, and the sampling valve is installed on the lower portion of the main body. The polymer injection well head sampler has simple structure, convenient operation, excellent balancing effect, low cutting and high viscosity reserve rate, is convenient to adjust direction, is convenient for replacing perishable pieces, can continuously sample, and is widely applied in oil field polymer injection process of tertiary process.
Description
One, technical field
The utility model relates to oil exploitation injection well mouth sampling instrument, particularly a kind of injection well mouth sampler.
Two, background technology
Polymer displacement of reservoir oil is main tertiary oil recovery technology, and the viscosity of polymer is one of key factor of decision oil displacement efficiency.In order to guarantee oil displacement effect of polymer, understand and annotate poly-equipment service behaviour, need take a sample to injection of polymer from high-pressure well mouth, chemically examine performance parameters such as its viscosity.The polymer viscosity is relevant with its flowing velocity gradient, and velocity gradient is big more serious more to the polymer shearing, and the viscosity loss is big more.Traditional sampler, be the straight valve, the polymer that high pressure injects is directly by the valve port extraction, shear very big to the polymer viscosity, so the sample viscosity that takes out not is the True Data of injection of polymer, so often annotate poly-specific aim owing to the viscosity data are inaccurate poor, poly-effect is annotated in influence, causes the unnecessary waste of human, financial, and material resources.
Three, summary of the invention
The purpose of this utility model provides a kind of improved injection well mouth sampler.Adopt back pressure cavity, counterbalance valve and the connecting rod piston structure of buffering, take a sample under the flow regime lentamente, avoid effectively or overcome shortcoming or the deficiency that exists in the above-mentioned prior art thereby injection of polymer is weighed in inside and outside pressing.
Injection well mouth sampler described in the utility model comprises connector, union, main body, connecting rod piston, back pressure cavity, pressure cap, handle, counterbalance valve and sample valve.Described main body lower end is connected with connector, and the upper end is connected with pressure cap, and the piston end of connecting rod piston is installed in the back pressure cavity of main body, and connecting-rod head is connected with handle outside main body, and counterbalance valve is installed on main body top, and sample valve is installed on lower body part.
Wherein, described lower body part is connected with connector by union.Described main body is a variable-diameter structure, and top is provided with inner chamber, and the bottom is provided with the axis duct that is communicated with inner chamber.Back pressure cavity place, described main body top is provided with the overcurrent duct, and this place, duct is equipped with counterbalance valve, and lower body part is provided with thief hole, and this place, hole is equipped with sample valve.The shaft portion of described connecting rod piston is that hollow-core construction is stretched out main body and pressure cap, and the top is equipped with handle, and the connecting rod piston place was provided with opening, and this through hole is connected with the back pressure cavity of main body.
The utility model has following advantage compared with prior art:
1, simple in structure, easy to operate;
2, connector is connected with the main body union and is convenient to adjust direction, is convenient to change after the consumable accessory wearing and tearing.
3, good balance effect, low shearing, viscosity retention rate height;
4, sampling process can be carried out continuously.
Four, description of drawings
Accompanying drawing is a kind of example structure schematic diagram of the present utility model
Five, the specific embodiment:
Consult accompanying drawing, a kind of injection well mouth sampler comprises connector 1, union 2, main body 3, connecting rod piston 5, back pressure cavity 6, pressure cap 7, handle 8, counterbalance valve 9 and sample valve 10.Main body 3 lower ends are connected with connector 1, and the upper end is connected with pressure cap 7, and the piston end of connecting rod piston 5 is installed in the back pressure cavity 6 of main body 3, and connecting-rod head is connected with handle 8 outside main body 3, and counterbalance valve 9 is installed on main body 3 tops, and sample valve 10 is installed on main body 3 bottoms.
Main body 3 bottoms are connected with connector 1 by union 2.Main body 3 is a variable-diameter structure, and top is provided with back pressure cavity 6, and the bottom is provided with the axis duct that is communicated with back pressure cavity 6.Back pressure cavity place, main body 3 top is provided with the overcurrent duct, and this place, duct is equipped with counterbalance valve 9, and main body 3 bottoms are provided with thief hole, and this place, hole is equipped with sample valve 10.The shaft portion of connecting rod piston 5 is a hollow-core construction, stretches out main body 3 and pressure cap 7, and the top is equipped with handle 8, and connecting rod piston 5 places were provided with opening, and this through hole is connected with the back pressure cavity 6 of main body 3.
During operation, 1. open counterbalance valve 9, unload lower handle 8, in back pressure cavity 7, fill water, close counterbalance valve 9, connect handle 8; 2. be connected on the injection well mouth flow process valve by connector 1; 3. open injection well mouth flow process valve earlier, this moment, under the liquid effects, connecting rod piston 5 kept motionless in counterbalance valve 9 and back pressure cavity 7; Open sample valve 10 this moment again, carries out emptying, discharges in the flow process after the hydrops, close sample valve 10, crack counterbalance valve 9 is being annotated under the poly-pressure effect, and it is slowly up to promote connecting rod piston 5, polymer enters main body 3 inside, when connecting rod piston 5 stop up after, open sample valve 10 and counterbalance valve 9 fully, it is slowly descending that operating grip 8 promotes connecting rod pistons 5, polymer is slowly discharged from sample valve 10, enters sampling bottle and finishes sampling.
Claims (5)
1, a kind of injection well mouth sampler, comprise connector, union, main body, connecting rod piston, back pressure cavity, pressure cap, handle, counterbalance valve and sample valve, it is characterized in that described main body lower end is connected with connector, the upper end is connected with pressure cap, the piston end of connecting rod piston is installed on the inner chamber of main body, connecting-rod head is connected with handle outside main body, and counterbalance valve is installed on main body top, and sample valve is installed on lower body part.
2, injection well mouth sampler according to claim 1 is characterized in that described lower body part is connected with connector by union.
3, injection well mouth sampler according to claim 1 is characterized in that described main body is a variable-diameter structure, and top is provided with inner chamber, and the bottom is provided with the axis duct that is communicated with inner chamber.
4, injection well mouth sampler according to claim 3 is characterized in that back pressure cavity place, described main body top is provided with the overcurrent duct, and this place, duct is equipped with counterbalance valve, and lower body part is provided with thief hole, and this place, hole is equipped with sample valve.
5, injection well mouth sampler according to claim 1, the shaft portion that it is characterized in that described connecting rod piston is that hollow-core construction is stretched out main body and pressure cap, the top is equipped with handle, and the connecting rod piston place was provided with opening, and this through hole is connected with the back pressure cavity of main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920026583XU CN201416445Y (en) | 2009-06-04 | 2009-06-04 | Polymer injection well head sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920026583XU CN201416445Y (en) | 2009-06-04 | 2009-06-04 | Polymer injection well head sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416445Y true CN201416445Y (en) | 2010-03-03 |
Family
ID=41792862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920026583XU Expired - Fee Related CN201416445Y (en) | 2009-06-04 | 2009-06-04 | Polymer injection well head sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416445Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864953A (en) * | 2010-05-27 | 2010-10-20 | 中国海洋石油总公司 | Pushing device for extraction of formation fluid |
| CN102042014A (en) * | 2010-12-14 | 2011-05-04 | 中国海洋石油总公司 | Multistage-cylinder near well-bore zone shearing simulation device with three layers of compacted sand bodies |
| CN102042013A (en) * | 2010-12-14 | 2011-05-04 | 中国海洋石油总公司 | Near wellbore area cutting simulation device for combined cylinder body with three layers of compacted sand bodies |
| CN102854088A (en) * | 2011-06-29 | 2013-01-02 | 中国石油化工股份有限公司 | A device and method for fast density measurement of foamed cement slurry |
| CN103967484A (en) * | 2014-04-24 | 2014-08-06 | 黑龙江高仕达通用机械制造有限公司 | Piston type unloading-free sampling device |
| CN104314564A (en) * | 2014-09-25 | 2015-01-28 | 中国石油天然气股份有限公司 | Well head sampler for deep profile control and flooding |
| CN105089665A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Extraction type polymer solution sampler |
-
2009
- 2009-06-04 CN CN200920026583XU patent/CN201416445Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864953A (en) * | 2010-05-27 | 2010-10-20 | 中国海洋石油总公司 | Pushing device for extraction of formation fluid |
| CN101864953B (en) * | 2010-05-27 | 2013-04-24 | 中国海洋石油总公司 | Pushing device for extraction of formation fluid |
| CN102042014A (en) * | 2010-12-14 | 2011-05-04 | 中国海洋石油总公司 | Multistage-cylinder near well-bore zone shearing simulation device with three layers of compacted sand bodies |
| CN102042013A (en) * | 2010-12-14 | 2011-05-04 | 中国海洋石油总公司 | Near wellbore area cutting simulation device for combined cylinder body with three layers of compacted sand bodies |
| CN102042013B (en) * | 2010-12-14 | 2013-11-27 | 中国海洋石油总公司 | Near wellbore area cutting simulation device for combined cylinder body with three layers of compacted sand bodies |
| CN102042014B (en) * | 2010-12-14 | 2013-11-27 | 中国海洋石油总公司 | Multistage-cylinder near well-bore zone shearing simulation device with three layers of compacted sand bodies |
| CN102854088A (en) * | 2011-06-29 | 2013-01-02 | 中国石油化工股份有限公司 | A device and method for fast density measurement of foamed cement slurry |
| CN102854088B (en) * | 2011-06-29 | 2015-07-15 | 中国石油化工股份有限公司 | A device and method for fast density measurement of foamed cement slurry |
| CN103967484A (en) * | 2014-04-24 | 2014-08-06 | 黑龙江高仕达通用机械制造有限公司 | Piston type unloading-free sampling device |
| CN105089665A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Extraction type polymer solution sampler |
| CN104314564A (en) * | 2014-09-25 | 2015-01-28 | 中国石油天然气股份有限公司 | Well head sampler for deep profile control and flooding |
| CN104314564B (en) * | 2014-09-25 | 2017-02-15 | 中国石油天然气股份有限公司 | Well head sampler for deep profile control and flooding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20100604 |