CN204186383U - For the mechanical chain formula sampling tube under oil field well complex environment - Google Patents
For the mechanical chain formula sampling tube under oil field well complex environment Download PDFInfo
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- CN204186383U CN204186383U CN201420428920.9U CN201420428920U CN204186383U CN 204186383 U CN204186383 U CN 204186383U CN 201420428920 U CN201420428920 U CN 201420428920U CN 204186383 U CN204186383 U CN 204186383U
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- oil field
- sampling tube
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Abstract
The utility model discloses a kind of for the mechanical chain formula sampling tube under oil field well complex environment, comprise cylindrical shell, black box and interlocking assembly, black box comprises the upper seal support and bottom sealing socket that are threaded with the two ends up and down of cylindrical shell respectively, and being positioned at the upper seal bar of upper seal support axis and be positioned at the lower seal bar of bottom sealing socket axis, the laminating between upper seal support with upper seal bar and between bottom sealing socket with lower seal bar realizes the airtight of cylindrical shell two ends by the interlock of interlocking assembly with being separated and opening.The utility model adopts simple frame for movement to realize sampling under the complex environment of down-hole, improves sampling success rate under easy to operate and lower-cost condition.The utility model simplifies electrical control in sampling process, is conducive to the reliability that instrument works under the complex environment of down-hole, can ensure to sample success rate, and cost is lower.The utility model has reasonable in design, simple to operate, easy to maintenance, sampling reliability high.
Description
Technical field
The utility model relates to the sampling equipment of oil field downhole instrument, refers to a kind of for the mechanical chain formula sampling tube under oil field well complex environment particularly.
Background technology
Oil field well environment is more complicated, in order to realize the monitor and managment to oil field preferably, usually needs the sample under certain depth to take out to analyze.For realizing oil field well sampling operation, have and adopt traditional mechanical type sampling method, as impacting type sampling method, wall-hanging sampling method and clock-type sampling method etc., but traditional mechanical type sampling method affects comparatively large by subsurface environment and human factor, inconvenient operation and sampling reliability is not high; Also have the automation sampling equipment that exploitation precision is higher, to improve sampling reliability and sample purity, but the structure of device therefor is more complicated, and cost is higher.
Summary of the invention
The purpose of this utility model is exactly to overcome the deficiency existing for prior art, provides a kind of for the mechanical chain formula sampling tube under oil field well complex environment, can improve the success rate of sampling under easy to operate and lower-cost condition.
For achieving the above object, designed by the utility model for the mechanical chain formula sampling tube under oil field well complex environment, comprise cylindrical shell, black box and interlocking assembly, its special feature is: described black box comprises the upper seal support and bottom sealing socket that are threaded with the two ends up and down of cylindrical shell respectively, and be positioned at the upper seal bar of upper seal support axis and be positioned at the lower seal bar of bottom sealing socket axis, laminating between described upper seal support with upper seal bar and between bottom sealing socket with lower seal bar realizes the airtight of cylindrical shell two ends by the interlock of interlocking assembly with being separated and opening.
In such scheme, described upper seal bar and lower seal bar outer wall are all set with spring, the two ends of described spring are fixedly connected with spring footstock and spring pedestal respectively, described spring footstock is threaded with the upper end of upper seal bar or the lower end of lower seal bar, and described spring pedestal is sleeved on the outer wall of described upper seal bar or lower seal bar;
Described interlocking assembly comprises connecting rod, sliding sleeve, slips and cutting ferrule, and the upper end of described connecting rod is threaded with the lower end of upper seal bar, and the lower end of described connecting rod is threaded with sliding sleeve;
Be provided with the notch that can hold slips bottom described sliding sleeve, described sliding sleeve opposite flank be provided with and be convenient to the perforate that slips outwards opens extension;
The lower end of described cutting ferrule is threaded in the upper end of described bottom sealing socket, the upper inside wall of described cutting ferrule and the external wall of upper portion of described lower seal bar are slidably matched, the external wall of upper portion of described cutting ferrule and the inwall of sliding sleeve are slidably matched, top and the perforate corresponding section of described cutting ferrule are provided with the groove installing slips, the upper end of described lower seal bar is provided with the thimble axially can retreated in cutting ferrule, described thimble comprises conical nose and elongate tail, the two ends of described elongate tail are fixedly connected with the upper end of conical nose tail end with lower seal bar respectively, and form draw-in groove in the both sides of elongate tail,
Described slips is by can the slips torsion spring of Small-angle Rotation be arranged in groove, and moving axially of described sliding sleeve realizes blocking of lower seal bar with the contact of slips or discharge.Like this, upper seal bar, connecting rod and sliding sleeve are threaded connection and realize interlock, and the axially-movable between sliding sleeve and cutting ferrule drives the low-angle rotation of slips, is discharged or block the interlocking action that lower seal bar realizes black box by the change of slips state.
In such scheme, the outer wall in the middle part of described connecting rod is provided with the guide ring coordinated with rod slide, described guide ring has multiple oil-through hole.Like this, guide ring mainly plays support, centralizing function to connecting rod, and multiple oil-through hole facilitates the flowing of downhole samples.
Preferably, described slips comprises bottom and establishes bevelled plectrum, and the front end of described plectrum is provided with the blend stop that can prop up draw-in groove upper end inwall, and described plectrum extends in perforate by slips torsion spring or the contact internal walls of sliding sleeve.Like this, slips is when low-angle rotation, and the draw-in groove upper end inwall being propped up thimble by blend stop blocks lower seal bar, to be extruded contact by the inwall of sliding sleeve with the inclined-plane of plectrum, and release lower seal bar also realizes the interlocking action of black box.
Preferably, the inwall of described upper seal support lower end is provided with up-small and down-big upper conical groove, and the bottom of described upper seal bar is provided with and can forms upper conical that seals with upper conical groove; The inwall of described bottom sealing socket upper end is provided with up big and down small inferior pyramidal groove, and the middle part of described lower seal bar is provided with and can forms with inferior pyramidal groove the inferior pyramidal platform sealed.Like this, axially-movable between sliding sleeve and cutting ferrule, by the laminating of cone tank and taper platform be separated, make upper seal support fit with upper seal bar and be separated, thus realize the airtight of cylindrical shell and open.
Preferably, described spring pedestal is boss structure.
Preferably, the two ends up and down of described cylindrical shell are equipped with internal thread, and the lower end of described upper seal support is equipped with the upper end of bottom sealing socket the external screw thread be connected with cylinder screw.
Preferably, the two ends of described spring are embedded on spring footstock and spring pedestal respectively.
Preferably, the upper end of described upper seal bar and the lower end of lower seal bar are equipped with external screw thread, described spring footstock offer the nut bore be threaded with upper seal bar or lower seal bar; The two ends up and down of described connecting rod are equipped with external screw thread, and the lower end of described upper seal bar and the top of sliding sleeve all offer the screw be threaded with connecting rod, and are connected by nut.
Preferably, the lower end of described cutting ferrule is provided with internal thread, the upper end of described bottom sealing socket be also provided be threaded with cutting ferrule external screw thread.
The beneficial effects of the utility model are: when changing the stress of cylindrical shell one end, by the mechanical chain action of interlocking assembly, realize sealing and the unlatching at cylindrical shell two ends; Black box seals cylindrical shell after sample takes.The utility model adopts simple frame for movement to realize sampling under the complex environment of down-hole, improves the success rate of sampling under easy to operate and lower-cost condition.The utility model simplifies the electrical control in sampling process, is conducive to the reliability that instrument works under oil field well complex environment, can ensure the purity of sample, and cost is lower.The utility model has reasonable in design, simple to operate, easy to maintenance, sampling reliability high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model mechanical chain formula sampling tube.
Fig. 2 is the partial enlargement structural representation of A in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Shown in Fig. 1,2 for the mechanical chain formula sampling tube under oil field well complex environment, comprise cylindrical shell 6, black box and interlocking assembly.
Black box comprises upper seal support 2 and bottom sealing socket 14, and is positioned at the upper seal bar 3 of upper seal support 2 axis and is positioned at the lower seal bar 13 of bottom sealing socket 14 axis.The two ends up and down of cylindrical shell 6 are equipped with internal thread, and the lower end of upper seal support 2 and the upper end of bottom sealing socket 14 are equipped with the external screw thread be threaded with cylindrical shell 6.The inwall of upper seal support 2 lower end is provided with up-small and down-big upper conical groove 2.1, and the bottom of upper seal bar 3 is provided with and can forms upper conical 3.1 that seals with upper conical groove 2.1.The inwall of bottom sealing socket 14 upper end is provided with up big and down small inferior pyramidal groove 14.1, and the middle part of lower seal bar 13 is provided with and can forms with inferior pyramidal groove 14.1 the inferior pyramidal platform 13.1 sealed.
Upper seal bar 3 and lower seal bar 13 outer wall are all set with spring 4, and the two ends of spring 4 are embedded on the spring pedestal 5 of spring footstock 1 and boss structure respectively.The upper end of upper seal bar 3 and the lower end of lower seal bar 13 are equipped with external screw thread, spring footstock 1 offer the nut bore be threaded with upper seal bar 3 or lower seal bar 13.Spring pedestal 5 is sleeved on the outer wall of described upper seal bar 3 or lower seal bar 13.
Interlocking assembly comprises connecting rod 7, sliding sleeve 9, slips 11 and cutting ferrule 12.The two ends up and down of connecting rod 7 are equipped with external screw thread, and the lower end of upper seal bar 3 and the top of sliding sleeve 9 all offer the screw be threaded with connecting rod 7, and are connected by nut.Outer wall in the middle part of connecting rod 7 is provided with the guide ring 8 be slidably matched with connecting rod 7, guide ring 8 has multiple oil-through hole 8.1.
Be provided with the notch 9.1 that can hold slips 11 bottom sliding sleeve 9, sliding sleeve 9 opposite flank be provided with and be convenient to the perforate 9.2 that slips 11 outwards opens extension.
The lower end of cutting ferrule 12 is provided with internal thread, the upper end of bottom sealing socket 14 be also provided be threaded with cutting ferrule 12 external screw thread.The upper inside wall of cutting ferrule 12 and the external wall of upper portion of described lower seal bar 13 are slidably matched, and the external wall of upper portion of cutting ferrule 12 and the inwall of sliding sleeve 9 are slidably matched.Top and perforate 9.2 corresponding section of cutting ferrule 12 are provided with the groove 12.1 installing slips 11.
The upper end of lower seal bar 13 is provided with the thimble 15 axially can retreated in cutting ferrule 12, thimble 15 comprises conical nose 15.1 and elongate tail 15.2, the two ends of elongate tail 15.2 are fixedly connected with the upper end of lower seal bar 13 with conical nose 15.1 tail end respectively, and form draw-in groove 15.3 in the both sides of elongate tail 15.2.
Slips 11 is by can the slips torsion spring 10 of Small-angle Rotation be arranged in groove 12.1, slips 11 comprises the plectrum 11.3 that bottom is provided with inclined-plane 11.2, the front end of plectrum 11.3 is provided with the blend stop 11.1 that can prop up draw-in groove 15.3 upper end inwall, and plectrum 11.3 extends in perforate 9.2 or the contact internal walls of sliding sleeve 9 by slips torsion spring 10.Moving axially of sliding sleeve 9 realizes blocking of lower seal bar 13 with the contact of slips 11 or discharges.
The course of work of the present utility model:
The spring footstock 1 be connected with upper seal bar 3 is external force input, and the external force modes such as hydraulic cylinder, electric pushrod and motor shaft can be adopted to input axial compression; Under spring force, upper seal bar 3 and connecting rod 7 is driven axially to move down by the spring footstock 1 of upper end, sliding sleeve 9 is finally made axially to move down along cutting ferrule 12, until slips 11 is arranged in the notch 9.1 of sliding sleeve 9 lower end, the spring footstock 1 be connected with lower seal bar 13 is by manually pressing, make both sides blend stop 11.1 prop up the upper end inwall of draw-in groove 15.3, the lower end of both sides plectrum 11.3 is outwards opened and is extended in perforate 9.2, thus the thimble 15 of lower seal bar 13 upper end is blocked by slips 11.Now, be separated between upper seal support 2 with upper seal bar 3 and between bottom sealing socket 14 with lower seal bar 13, and realize the unlatching at cylindrical shell 6 two ends by the interlock of interlocking assembly, as shown in Figure 1.
Thrown in oil field well assigned address by sampling tube of the present utility model, liquid enters in the cylindrical shell 6 of sampling tube under flow regime, after a period of time has sampled, removes the axial force of the spring footstock 1 be connected with upper seal bar 3.Under spring return force function, the spring 4 be socketed with upper seal bar 3 drives seal bar 3 axially to move up, and sliding sleeve 9 is axially moved up along cutting ferrule 12 under the drive of upper seal bar 3 and connecting rod 7, until the conical surface seal of upper seal bar 3 and upper seal support 2.In sliding sleeve 9 moving process, extruding with slips 11 bottom bevel 11.2 bottom of sliding sleeve 9, slips 11 carries out small angle range rotation by slips torsion spring 10, make the lower end inward collapsible of both sides plectrum 11.3 in the notch 9.1 of sliding sleeve 9, and both sides blend stop 11.1 is not contacted with draw-in groove 15.3, thus make slips 11 unclamp thimble 15 and discharge lower seal bar 13, lower seal bar 13 axially moves down under lower end spring 4 return force function, until the conical surface seal of lower seal bar 13 and bottom sealing socket 14, finally complete sample, can sampling tube be taken out.
Claims (10)
1. one kind for the mechanical chain formula sampling tube under oil field well complex environment, comprise cylindrical shell (6), black box and interlocking assembly, it is characterized in that: described black box comprises the upper seal support (2) and bottom sealing socket (14) that are threaded with the two ends up and down of cylindrical shell (6) respectively, and be positioned at the upper seal bar (3) of upper seal support (2) axis and be positioned at the lower seal bar (13) of bottom sealing socket (14) axis, laminating between described upper seal support (2) with upper seal bar (3) and between bottom sealing socket (14) with lower seal bar (13) realizes the airtight of cylindrical shell (6) two ends by the interlock of interlocking assembly with being separated and opening.
2. according to claim 1 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: described upper seal bar (3) and lower seal bar (13) outer wall are all set with spring (4), the two ends of described spring (4) are fixedly connected with spring footstock (1) and spring pedestal (5) respectively, described spring footstock (1) is threaded with the upper end of upper seal bar (3) or the lower end of lower seal bar (13), described spring pedestal (5) is sleeved on the outer wall of described upper seal bar (3) or lower seal bar (13),
Described interlocking assembly comprises connecting rod (7), sliding sleeve (9), slips (11) and cutting ferrule (12), the upper end of described connecting rod (7) is threaded with the lower end of upper seal bar (3), and the lower end of described connecting rod (7) is threaded with sliding sleeve (9);
Described sliding sleeve (9) bottom is provided with the notch (9.1) that can hold slips (11), described sliding sleeve (9) opposite flank is provided with and is convenient to the perforate (9.2) that slips (11) outwards opens extension;
The lower end of described cutting ferrule (12) is threaded in the upper end of described bottom sealing socket (14), the upper inside wall of described cutting ferrule (12) and the external wall of upper portion of described lower seal bar (13) are slidably matched, the external wall of upper portion of described cutting ferrule (12) and the inwall of sliding sleeve (9) are slidably matched, the top of described cutting ferrule (12) and perforate (9.2) corresponding section are provided with the groove (12.1) installing slips (11), the upper end of described lower seal bar (13) is provided with the thimble (15) axially can retreated in cutting ferrule (12), described thimble (15) comprises conical nose (15.1) and elongate tail (15.2), the two ends of described elongate tail (15.2) are fixedly connected with the upper end of conical nose (15.1) tail end with lower seal bar (13) respectively, and form draw-in groove (15.3) in the both sides of elongate tail (15.2),
Described slips (11) is by can the slips torsion spring (10) of Small-angle Rotation be arranged in groove (12.1), and moving axially of described sliding sleeve (9) realizes blocking or discharging of lower seal bar (13) with the contact of slips (11).
3. according to claim 2 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: the outer wall at described connecting rod (7) middle part is provided with the guide ring (8) be slidably matched with connecting rod (7), described guide ring (8) has multiple oil-through hole (8.1).
4. according to claim 2 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: described slips (11) comprises the plectrum (11.3) that bottom is provided with inclined-plane (11.2), and the front end of described plectrum (11.3) is provided with the blend stop (11.1) that can prop up draw-in groove (15.3) upper end inwall.
5. according to claim 1 and 2 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: the inwall of described upper seal support (2) lower end is provided with up-small and down-big upper conical groove (2.1), the bottom of described upper seal bar (3) is provided with and can be formed upper conical (3.1) sealing with upper conical groove (2.1); The inwall of described bottom sealing socket (14) upper end is provided with up big and down small inferior pyramidal groove (14.1), and the middle part of described lower seal bar (13) is provided with and can forms with inferior pyramidal groove (14.1) the inferior pyramidal platform (13.1) sealed.
6. according to claim 2 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: described spring pedestal (5) is boss structure.
7. according to claim 1 and 2 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: the two ends up and down of described cylindrical shell (6) are equipped with internal thread, the lower end of described upper seal support (2) and the upper end of bottom sealing socket (14) are equipped with the external screw thread be threaded with cylindrical shell (6).
8. according to claim 2 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: the two ends of described spring (4) are embedded on spring footstock (1) and spring pedestal (5) respectively.
9. according to claim 2 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: the upper end of described upper seal bar (3) and the lower end of lower seal bar (13) are equipped with external screw thread, described spring footstock (1) offers the nut bore be threaded with upper seal bar (3) or lower seal bar (13); The two ends up and down of described connecting rod (7) are equipped with external screw thread, and the lower end of described upper seal bar (3) and the top of sliding sleeve (9) all offer the screw be threaded with connecting rod (7), and are connected by nut.
10. according to claim 2 for the mechanical chain formula sampling tube under oil field well complex environment, it is characterized in that: the lower end of described cutting ferrule (12) is provided with internal thread, the upper end of described bottom sealing socket (14) be also provided be threaded with cutting ferrule (12) external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428920.9U CN204186383U (en) | 2014-07-31 | 2014-07-31 | For the mechanical chain formula sampling tube under oil field well complex environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428920.9U CN204186383U (en) | 2014-07-31 | 2014-07-31 | For the mechanical chain formula sampling tube under oil field well complex environment |
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| CN204186383U true CN204186383U (en) | 2015-03-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895563A (en) * | 2015-04-14 | 2015-09-09 | 中国石油集团渤海钻探工程有限公司 | Jet pump sampler |
| CN106092655A (en) * | 2016-08-26 | 2016-11-09 | 王秀红 | Run sample bucket |
| CN107448198A (en) * | 2017-09-26 | 2017-12-08 | 中国科学院武汉岩土力学研究所 | A kind of double-deck water plug and double-deck pumping system |
-
2014
- 2014-07-31 CN CN201420428920.9U patent/CN204186383U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895563A (en) * | 2015-04-14 | 2015-09-09 | 中国石油集团渤海钻探工程有限公司 | Jet pump sampler |
| CN104895563B (en) * | 2015-04-14 | 2017-12-05 | 中国石油集团渤海钻探工程有限公司 | Jet pump sampler |
| CN106092655A (en) * | 2016-08-26 | 2016-11-09 | 王秀红 | Run sample bucket |
| CN107448198A (en) * | 2017-09-26 | 2017-12-08 | 中国科学院武汉岩土力学研究所 | A kind of double-deck water plug and double-deck pumping system |
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