CN202117668U - Pressure control sampler - Google Patents
Pressure control sampler Download PDFInfo
- Publication number
- CN202117668U CN202117668U CN2011202323837U CN201120232383U CN202117668U CN 202117668 U CN202117668 U CN 202117668U CN 2011202323837 U CN2011202323837 U CN 2011202323837U CN 201120232383 U CN201120232383 U CN 201120232383U CN 202117668 U CN202117668 U CN 202117668U
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- CN
- China
- Prior art keywords
- fixedly connected
- fishing head
- sampling
- connecting rod
- valve seat
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
A pressure control sampler belongs to the technical field of oil field equipment, particularly relates to a sampler used for testing stratums, which comprises an outer barrel. A lower connector with a hole at the lower end is fixedly connected with the lower end of the outer barrel, a valve seat is fixedly connected with the inside of the outer barrel arranged at the upper end of the lower connector, a sampling barrel is fixedly connected to the upper end of the valve seat, a fishing head is fixedly connected to the upper end of the sampling barrel, the upper end of the sampling barrel and the lower end of the fishing head are communicated, the upper end of the fishing head is sealed, and a plurality of through holes and center holes which are axially communicated are arranged in the valve seat. A connecting rod penetrates into the center hole, the lower end of the connecting rod is fixedly connected to a valve core, and a compressed spring is sleeved on the connecting rod. A piston is arranged in the sampling barrel and connected with the sampling barrel through a shear pin, a decompression hole is arranged on the fishing head, and a decompression plug is arranged in the decompression hole. The pressure control sampler is opened through a pressure control valve core, and is reliable in work, capable of ensuring the sampling pressure to reach saturation pressure, meeting the requirements for high-pressure physical property sampling, simple in structure and simple and convenient to use and maintain.
Description
Technical field
The utility model belongs to the oil field equipment technical field, is specifically related to the sampler that a kind of formation testing is used.
Background technology
At present, the formation sample that obtains in the formation tester can't be carried out high pressure property and changeed appearance, and other little sampler need use at the bottom of steel wire or the wire rope lower going-into-well, then can't be lowered to for heavy oil wells.
Summary of the invention
The purpose of the utility model is: a kind of voltage-controlled sampler that adapts to high pressure physical property sample is provided.
The purpose of the utility model is achieved in that voltage-controlled sampler, comprises urceolus, and the urceolus lower end is fixedly connected the lower contact of lower end perforate, in the urceolus of lower contact upper end, is fixedly connected valve seat; Valve seat upper end fixed connection sampling tube, the sampling tube upper end is fixedly connected fishing head, and sampling tube upper end and fishing head lower end are communicated with setting; And the upper end of fishing head is airtight, and the through hole and the centre bore of some axial connections is set in the said valve seat, places connecting rod in the centre bore; The connecting rod lower end is fixedly connected spool, and connecting rod sleeve is put stage clip, in the said sampling tube piston is set; Piston is connected through cutting off with sampling tube, on the said fishing head relief hole is set, and pressure relief plug is set in the relief hole.
The utility model confirms to install several cutting off according to the saturation pressure of testing well before going into the well, the utility model is connected on the top of test string circulating valve, in the test string lower going-into-well; In the flow process that drives a well, when head of liquid in the test string when cutting off value for shear, overhead-valve core on the head of liquid; Cut off and cut off; Formation fluid gets into sampling tube through lower contact, valve seat, promotes piston stroking upward, after piston stroking upward puts in place; Be full of formation fluid sample in the sampling tube, spool is descending closing under the effect of spring force.Test can in time be lowered to steel wire as required midway or wire rope is pulled the utility model out.After integral body trips out, just can sampling tube and fishing head be dismantled from lower contact and be sent to the chemical laboratory and carry out high pressure property and change appearance and analyze.When changeing appearance, one is switched through sampling device, and one connects pressure line, and pressure line is connected on the pressure release consent, promotes piston and discharges sample in the sampling tube, thereby need not use mercury to replace sample, handling safety, environmental protection.
The utility model is opened through the pressure-control valve core, and reliable operation is guaranteed the sampling pressure pressure that reaches capacity, and meets the high pressure physical property sample requirement; And simple in structure, use, maintaining is easy.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
The specific embodiment
As shown in Figure 1, voltage-controlled sampler comprises urceolus 4; Urceolus 4 lower ends are fixedly connected the lower contact 13 of lower end perforate, in the urceolus 4 of lower contact 13 upper ends, are fixedly connected valve seat 12, and valve seat 12 upper ends are fixedly connected sampling tube 5; Sampling tube 5 upper ends are fixedly connected fishing head 1, and sampling tube 5 upper ends and fishing head 1 lower end are communicated with setting, and the upper end of fishing head 1 is airtight; The through hole 9 and the centre bore of some axial connections are set in the valve seat 12, place connecting rod 8 in the centre bore, connecting rod 8 lower ends are fixedly connected spool 11; Connecting rod 8 is outer to be nested with stage clip 10, and piston 6 is set in the sampling tube 5, and piston 6 is connected with sampling tube 5 through cutting off 7; Relief hole 3 is set on the fishing head 1, pressure relief plug 2 is set in the relief hole 3.
Claims (1)
1. voltage-controlled sampler is characterized in that: comprise urceolus, the urceolus lower end is fixedly connected the lower contact of lower end perforate, in the urceolus of lower contact upper end, is fixedly connected valve seat; Valve seat upper end fixed connection sampling tube, the sampling tube upper end is fixedly connected fishing head, and sampling tube upper end and fishing head lower end are communicated with setting; And the upper end of fishing head is airtight, and the through hole and the centre bore of some axial connections is set in the said valve seat, places connecting rod in the centre bore; The connecting rod lower end is fixedly connected spool, and connecting rod sleeve is put stage clip, in the said sampling tube piston is set; Piston is connected through cutting off with sampling tube, on the said fishing head relief hole is set, and pressure relief plug is set in the relief hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202323837U CN202117668U (en) | 2011-07-04 | 2011-07-04 | Pressure control sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202323837U CN202117668U (en) | 2011-07-04 | 2011-07-04 | Pressure control sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117668U true CN202117668U (en) | 2012-01-18 |
Family
ID=45458741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202323837U Expired - Fee Related CN202117668U (en) | 2011-07-04 | 2011-07-04 | Pressure control sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117668U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015998A (en) * | 2012-04-25 | 2013-04-03 | 中煤科工集团武汉设计研究院 | In-situ sampling device applied to drilling process |
| CN108716996A (en) * | 2018-07-17 | 2018-10-30 | 湖南唯科拓石油科技服务有限公司 | A kind of down-hole liquid sampling instrument |
| CN112211629A (en) * | 2019-07-10 | 2021-01-12 | 中国石油化工股份有限公司 | Mixed slurry obtaining device and using method thereof |
-
2011
- 2011-07-04 CN CN2011202323837U patent/CN202117668U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015998A (en) * | 2012-04-25 | 2013-04-03 | 中煤科工集团武汉设计研究院 | In-situ sampling device applied to drilling process |
| CN108716996A (en) * | 2018-07-17 | 2018-10-30 | 湖南唯科拓石油科技服务有限公司 | A kind of down-hole liquid sampling instrument |
| CN112211629A (en) * | 2019-07-10 | 2021-01-12 | 中国石油化工股份有限公司 | Mixed slurry obtaining device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20160704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |