CN101864953B - Pushing device for extraction of formation fluid - Google Patents
Pushing device for extraction of formation fluid Download PDFInfo
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- CN101864953B CN101864953B CN 201010193287 CN201010193287A CN101864953B CN 101864953 B CN101864953 B CN 101864953B CN 201010193287 CN201010193287 CN 201010193287 CN 201010193287 A CN201010193287 A CN 201010193287A CN 101864953 B CN101864953 B CN 101864953B
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Abstract
The invention discloses a pushing device for the extraction of formation fluid, which comprises a main cylinder, and the bottom of the main cylinder is provided with an axially extended central guide rod, on which a first pushing piston and a second pushing piston are sequentially sleeved; the sidewall of the main cylinder is provided with an extension oil port, a formation fluid oil port and a retraction oil port, the extension oil port is communicated with an extension oil chamber of the main cylinder through an extension oil passage axially arranged in the sidewall of the main cylinder, the formation fluid oil port is communicated with a fluid inlet of the central guide rod via a fluid passage, the fluid passage consists of a first passage a second passage and a third passage, wherein the first passage sequentially runs through and is axially arranged in the sidewall of the main cylinder, the second passage is radially arranged in the bottom of the main cylinder, the third passage is axially arranged in the central guide rod, and the retraction oil port is communicated with a retraction oil chamber of the main cylinder through a retraction oil passage of the sidewall of the main cylinder. The pushing device has the advantages of high integration degree and small occupied space, and the arrangement of the control oil passages and the fluid passage of the pushing device is more reasonable.
Description
Technical field
The present invention relates to a kind of pushing device for the extraction of formation fluid on the logging instrument drill collar matrix.
Background technology
Setting backup probe to be installed on logging instrument drill collar matrix, its objective is the fluid under the production wells, test accordingly.Setting backup probe assembly is to move by the hydraulic circuit control piston, thereby finishes collection and the filtration of fluid.
Because the oil circuit control of present setting assembly structure is unreasonable, it is larger to take up room, and installation and use are all very inconvenient.
Summary of the invention
For the problem that prior art exists, the object of the present invention is to provide a kind of oil circuit control more reasonable structure, be convenient to install and the pushing device of the extraction of formation fluid that uses.
The pushing device of a kind of extraction of formation fluid of the present invention comprises: Master cylinder body, be provided with axially extended centre pilot bar in the bottom of this Master cylinder body, be arranged with successively the first backup piston and the second backup piston on this centre pilot bar, the backup probe is arranged on the second backup piston; Be provided with at the sidewall of described Master cylinder body and open hydraulic fluid port, formation fluid mouth and contraction hydraulic fluid port, opening hydraulic fluid port is connected with the oil pocket that opens of Master cylinder body by the oil circuit that opens that is arranged on vertically in the Master cylinder body sidewall, the formation fluid mouth is conducted by the fluid intake of fluid passage and described centre pilot bar, described fluid passage comprise successively connect be arranged on vertically first passage in the Master cylinder body sidewall, be disposed radially at the second channel of Master cylinder body bottom and be arranged on vertically third channel in the centre pilot bar, the contraction hydraulic fluid port is connected with the contraction oil pocket of Master cylinder body by the contraction oil circuit that is arranged on vertically the Master cylinder body sidewall.
Preferably, filtering head is installed detachably also on the fluid intake of described centre pilot bar, offers the lautertuns that extends vertically at this filtering head.
Preferably, be provided with O type rubber gasket at described backup probe, in this rubber gasket, be arranged with the guiding fluid and enter into filtration inserting tube in the described filtering head.
Preferably, on described backup probe, also be provided with guide finger.
The present invention is by arranging opening oil circuit, shrinking oil circuit and formation fluid passage of axial distribution in the Master cylinder body sidewall, integrated level is high, it is little to take up room, oil circuit control and fluid passage arrange more rationally, dwindled the volume of assembly, greatly be easily installed on the drill collar matrix, simultaneously also convenient use.In addition, the present invention also has following advantage:
1, owing to having adopted oil circuit is set axially, so that backup piston movement stroke increases;
2, adopted axially oil circuit is set after, fluid intake can be concentrated placement, has greatly increased the integrated level of single unit system, it is little to take up room, the scope of application is more extensive, is particularly suitable for petroleum underground instrument, reliability is high;
3, adopted axially oil circuit is set after, the fluid between each fluid passage does not pollute mutually in unloading process;
4, the design of central axis resettlement layer fluid passage, in installing screen pack additional, screen pack adopts and radially arranges axial elongated slot effectively, and filter area increases greatly;
5, can change according to different formation fluids the screen pack of different size, convenient disassembly.
6, the design of centre pilot bar resettlement layer fluid passage after the backup piston tightens up, quits work, and filter area is minimum; When work, the backup piston opens, caulking gum sealing stratum, and this moment, the filter area of screen pack was maximum.
Description of drawings
Fig. 1 is structural profile schematic diagram of the present invention;
Fig. 2 is the structural profile schematic diagram of the Master cylinder body of Fig. 1;
Fig. 3 is the schematic top plan view of Fig. 2.
The specific embodiment
Shown in Fig. 1～3, the present invention includes: Master cylinder body 14, Master cylinder body 14 is fixedly mounted on the drill collar matrix 1 by locking nut 13, sidewall 142 outer setting of Master cylinder body 14 are useful on the sealing ring 17 that forms hermetically-sealed construction with drill collar matrix 1, offer the inner loop passage 2 of fluid circulation on the drill collar matrix 1.Be provided with axially extended centre pilot bar 20 in the bottom 141 of Master cylinder body 14, be arranged with successively the first backup piston 4 and the second backup piston 12 on this centre pilot bar 20, backup probe 7 is arranged on the second backup piston 12.
Be provided with at the sidewall 142 of Master cylinder body 14 and open hydraulic fluid port 21, formation fluid mouth 22 and contraction hydraulic fluid port 23, opening hydraulic fluid port 21 is connected with the oil pocket 16 that opens of Master cylinder body 14 by the oil circuit 211 that opens that is arranged on vertically in the Master cylinder body sidewall 142, formation fluid mouth 22 is conducted by the fluid intake 15 of fluid passage 19 with centre pilot bar 20, fluid passage 19 comprise successively connect be arranged on vertically first passage 191 in the Master cylinder body sidewall 142, be disposed radially in Master cylinder body bottom 141 second channel 192 and be arranged on vertically third channel 193 in the centre pilot bar 20, contraction hydraulic fluid port 23 is connected with the contraction oil pocket 5 of Master cylinder body 14 by the contraction oil circuit 231 that is arranged on vertically Master cylinder body sidewall 142.
As shown in Figure 1, filtering head 24 is installed detachably also on the fluid intake 15 of centre pilot bar 20, offers the lautertuns 241 that extends vertically at filtering head 24.In addition, be provided with O type rubber gasket 11 at backup probe 7, in this rubber gasket 11, be arranged with the guiding fluid and enter into filtration inserting tube 10 in the filtering head 24.
During use, the drill collar that backup probe assembly of the present invention has been installed is placed in the well 6, by oily to opening hydraulic fluid port 21 interior injection pressures, pressure oil arranges vertically opens oil circuit 211 and enters and open in the oil pocket 16, thereby promote the first backup piston 4 and the second backup piston 12 moves, push backup probe 7 to stratum 9, rubber gasket 11 is pressed against on the mud cake 8 on stratum 9.At this moment, formation fluid 18 flow into filtering head 24 from filtering inserting tube 10, and enter into the third channel 193 of centre pilot bar 20 by the lautertuns 241 that filtering head 24 is axially offered, enter into again successively the inner loop passage 2 of drill collar matrix 1 by second channel 192, first passage 191 and formation fluid mouth 22.Regaining backup when needs pops one's head in 7 the time, then to shrinking hydraulic fluid port 23 injection pressures oil, the contraction oil circuit 231 that pressure oil arranges vertically enters into and shrinks oil pocket 5, thereby the first backup piston 4 and the second backup piston 12 are pushed back, backup probe 7 is just got back to the state of contraction, has finished the gatherer process of fluid.
The present invention is by arranging opening oil circuit 211, shrinking oil circuit 231 and formation fluid passage of axial distribution in that the sidewall 142 of Master cylinder body 14 is interior, integrated level is high, it is little to take up room, thereby so that oil circuit control of the present invention and fluid passage arrange more rationally, dwindled the volume of whole assembly, greatly be easily installed on the drill collar matrix 1, simultaneously also convenient use.
In addition, adopt the structure of removable filter head 24, and offer the lautertuns 241 that extends vertically, greatly improved filter efficiency.
Guide finger 3 is set, has also played the effect that prevents that backup probe 7 from rotating.
Claims (4)
1. the pushing device of an extraction of formation fluid, it is characterized in that, comprising: Master cylinder body is provided with axially extended centre pilot bar in the bottom of this Master cylinder body, be arranged with successively the first backup piston and the second backup piston on this centre pilot bar, the backup probe is arranged on the second backup piston; Be provided with at the sidewall of described Master cylinder body and open hydraulic fluid port, formation fluid mouth and contraction hydraulic fluid port, opening hydraulic fluid port is connected with the oil pocket that opens of Master cylinder body by the oil circuit that opens that is arranged on vertically in the Master cylinder body sidewall, the formation fluid mouth is conducted by the fluid intake of fluid passage and described centre pilot bar, described fluid passage comprise successively connect be arranged on vertically first passage in the Master cylinder body sidewall, be disposed radially at the second channel of Master cylinder body bottom and be arranged on vertically third channel in the centre pilot bar, the contraction hydraulic fluid port is connected with the contraction oil pocket of Master cylinder body by the contraction oil circuit that is arranged on vertically the Master cylinder body sidewall.
2. device as claimed in claim 1 is characterized in that, filtering head also detachably is installed on the fluid intake of described centre pilot bar, offers the lautertuns that extends vertically at this filtering head.
3. device as claimed in claim 2 is characterized in that, is provided with O type rubber gasket at described backup probe, is arranged with the guiding fluid and enters into filtration inserting tube in the described filtering head in this rubber gasket.
4. such as the arbitrary described device of claims 1 to 3, it is characterized in that, on described backup probe, also be provided with guide finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193287 CN101864953B (en) | 2010-05-27 | 2010-05-27 | Pushing device for extraction of formation fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193287 CN101864953B (en) | 2010-05-27 | 2010-05-27 | Pushing device for extraction of formation fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101864953A CN101864953A (en) | 2010-10-20 |
| CN101864953B true CN101864953B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010193287 Active CN101864953B (en) | 2010-05-27 | 2010-05-27 | Pushing device for extraction of formation fluid |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419271B (en) * | 2011-12-16 | 2013-01-09 | 中国海洋石油总公司 | Embedded focusing probe |
| CN107524440B (en) * | 2016-06-20 | 2023-12-22 | 万瑞（北京）科技有限公司 | Repeated stratum tester and probe assembly thereof |
| CN106837218B (en) * | 2017-02-28 | 2023-03-24 | 中国海洋石油总公司 | Hydraulic pushing type rubber sealing washpipe assembly of drilling top driving device |
| CN111157701B (en) * | 2020-01-03 | 2021-12-10 | 中国海洋石油集团有限公司 | Coring and sampling integrated logging instrument |
| CN112696188B (en) * | 2020-12-09 | 2023-10-31 | 王少斌 | Annular detachable rubber probe leaning device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713135Y (en) * | 2004-06-11 | 2005-07-27 | 海安华达石油仪器有限公司 | Piston type deep well sampler |
| DE102004041334B3 (en) * | 2004-08-20 | 2006-03-23 | Gfi Grundwasserforschungsinstitut Gmbh Dresden | Bore-related isobaric extraction device for groundwater samples has specimen transport device for isobaric accommodation of the specimen with a rigid housing containing a flexible bag |
| CN1865656A (en) * | 2005-05-19 | 2006-11-22 | 普拉德研究及开发股份有限公司 | Apparatus and method for obtaining downhole samples |
| CN201144697Y (en) * | 2008-01-09 | 2008-11-05 | 中国石化股份胜利油田分公司孤东采油厂 | Suction type polymer sampler |
| CN201416445Y (en) * | 2009-06-04 | 2010-03-03 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Polymer injection well head sampler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7665557B2 (en) * | 2005-06-16 | 2010-02-23 | Eaton Corporation | Hybrid electric powertrain with anti-idle function |
-
2010
- 2010-05-27 CN CN 201010193287 patent/CN101864953B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713135Y (en) * | 2004-06-11 | 2005-07-27 | 海安华达石油仪器有限公司 | Piston type deep well sampler |
| DE102004041334B3 (en) * | 2004-08-20 | 2006-03-23 | Gfi Grundwasserforschungsinstitut Gmbh Dresden | Bore-related isobaric extraction device for groundwater samples has specimen transport device for isobaric accommodation of the specimen with a rigid housing containing a flexible bag |
| CN1865656A (en) * | 2005-05-19 | 2006-11-22 | 普拉德研究及开发股份有限公司 | Apparatus and method for obtaining downhole samples |
| CN201144697Y (en) * | 2008-01-09 | 2008-11-05 | 中国石化股份胜利油田分公司孤东采油厂 | Suction type polymer sampler |
| CN201416445Y (en) * | 2009-06-04 | 2010-03-03 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Polymer injection well head sampler |
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| CN101864953A (en) | 2010-10-20 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |
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