CN210768748U - Pressure measuring cylinder - Google Patents
Pressure measuring cylinder Download PDFInfo
- Publication number
- CN210768748U CN210768748U CN201921396615.5U CN201921396615U CN210768748U CN 210768748 U CN210768748 U CN 210768748U CN 201921396615 U CN201921396615 U CN 201921396615U CN 210768748 U CN210768748 U CN 210768748U
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- CN
- China
- Prior art keywords
- lead screw
- pressure measuring
- cylinder barrel
- measuring cylinder
- direct current
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- Expired - Fee Related
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Abstract
The utility model relates to an oil exploration test equipment, concretely relates to stratum tester is with surveying jar, including direct current motor reduction gears, direct current motor reduction gears passes through bearing coupling mechanism and is connected with screw drive mechanism, and screw drive mechanism is connected with pressure measurement cylinder mechanism, and the connection skeleton cover is established on bearing coupling mechanism and pressure measurement cylinder mechanism; the lead screw transmission mechanism comprises a lead screw, the upper end of the lead screw is connected with the bearing connecting mechanism, a lead screw nut is sleeved on the lead screw, one end of a connecting rod is fixedly arranged on the lead screw nut, and the other end of the connecting rod is connected with the piston rod; the pressure measuring cylinder barrel mechanism comprises a cylinder barrel, the upper end of the cylinder barrel is in threaded connection with the connecting framework, a piston is arranged in the cylinder barrel, the upper end of the piston is connected with a piston rod, and a communicating hole is formed in the lower portion of the cylinder barrel. The utility model relates to a rationally, simple structure, the pressure measurement time is short, and it is complete to solve high hyposmosis rate formation pressure curve, and the accurate problem is calculated to the formation permeability, and the accuracy of measuring the formation parameter is high.
Description
Technical Field
The utility model relates to an oil exploration test equipment, concretely relates to pressure measuring cylinder for formation tester.
Background
Maintaining reasonable formation pressure is the key to continuous and stable production of crude oil, and monitoring and evaluating the current pressure level of the formation and obtaining relatively accurate reservoir seepage parameter information are the basis for geologists to formulate reasonable development schemes. In order to master the flowing property and physical property parameters of an oil-gas reservoir, the oil-gas reservoir needs to be evaluated exactly and dynamically, and the current practice is to test the stratum, which relates to a stratum tester.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a reasonable in design, simple structure, the pressure measurement time is short, a pressure measurement cylinder that formation parameter accuracy is high.
The technical scheme of the utility model is that:
a pressure measuring cylinder comprises a direct current motor speed reducing mechanism, a bearing connecting mechanism, a lead screw transmission mechanism, a pressure measuring cylinder mechanism and a connecting framework, wherein the direct current motor speed reducing mechanism is connected with the lead screw transmission mechanism through the bearing connecting mechanism; the lead screw transmission mechanism comprises a lead screw, the upper end of the lead screw is connected with the bearing connecting mechanism, a lead screw nut is sleeved on the lead screw, one end of a connecting rod is fixedly arranged on the lead screw nut, and the other end of the connecting rod is connected with the piston rod; the pressure measuring cylinder barrel mechanism comprises a cylinder barrel, the upper end of the cylinder barrel is in threaded connection with the connecting framework, a piston is arranged in the cylinder barrel, the upper end of the piston is connected with a piston rod, and a communicating hole is formed in the lower portion of the cylinder barrel.
The control valve is fixedly installed in the connecting framework and located below the screw nut, the control valve comprises a valve seat, a spring, a valve core, a first trigger switch and a second trigger switch, the spring and the valve core are installed in the valve seat, the spring is sleeved on the upper portion of the valve core, and the first trigger switch and the second trigger switch are arranged on the valve seat.
The lower end of the lead screw is connected with a drawn outer ring needle roller bearing; the drawn cup needle roller bearing is connected with the support plate; the supporting disk is sleeved on the connecting rod, and the lower end of the supporting disk is connected with the valve seat.
And the upper end of the piston rod is provided with a mandril.
The direct current motor speed reducing mechanism comprises a direct current motor and a speed reducer, and the output end of the speed reducer is connected with the bearing connecting mechanism.
The utility model has the advantages that: the pressure measuring device has the advantages that the design is reasonable, the structure is simple, the direct current motor is adopted, the cylinder chamber is driven by the lead screw transmission mechanism to complete pumping, the volume and the pumping speed of the cylinder chamber are adjustable, the pressure measuring time is short, the problems that the pressure curve of the high-low permeability stratum is complete and the stratum permeability is accurate in calculation are solved, the lead screw transmission mechanism can achieve a self-locking function, can be stopped at a certain position accurately, and the accuracy of measuring stratum parameters is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
A direct current motor 1, a speed reducer 2, a lead screw 3, a lead screw nut 4, a spring 6, a valve seat 7, a valve core 7-1 trigger switch I7-2 trigger switch II 8, a push rod 9, a piston rod 10, a cylinder 11, a piston 11-1, a cylinder chamber 12 are connected with a framework 13, a connecting rod 14 and a bearing connecting mechanism 15 supporting plate.
Detailed Description
The utility model provides a pressure measuring cylinder, includes direct current motor reduction gears, bearing coupling mechanism 14, screw drive mechanism, pressure measuring cylinder mechanism and connects skeleton 12, and direct current motor reduction gears passes through bearing coupling mechanism 14 and is connected with screw drive mechanism, and screw drive mechanism is connected with pressure measuring cylinder mechanism, and the cover of connecting skeleton 12 is established on bearing coupling mechanism 14 and pressure measuring cylinder mechanism.
The direct current motor speed reducing mechanism comprises a direct current motor 1 and a speed reducer 2, the output end of the speed reducer 2 is connected with a bearing connecting mechanism 14, the lead screw transmission mechanism comprises a lead screw 3, the upper end of the lead screw 3 is connected with the bearing connecting mechanism 14, the lower end of the lead screw 3 is connected with a drawn outer ring needle roller bearing, the drawn outer ring needle roller bearing is connected with a supporting plate 15, the supporting plate 15 is sleeved on a connecting rod 13, a lead screw nut 4 is sleeved on the lead screw 3, one end of the connecting rod 13 is fixedly arranged on the lead screw nut 4, and; the pressure measuring cylinder barrel mechanism comprises a cylinder barrel 10, the upper end of the cylinder barrel 10 is in threaded connection with a connecting framework 12, a piston 11 is arranged in the cylinder barrel 10, the upper end of the piston 11 is connected with a piston rod 9, the upper end of the piston rod 9 is provided with a mandril 8, and the lower portion of the cylinder barrel 10 is provided with a communicating hole.
A control valve is fixedly installed in the connecting framework 12, the valve seat 6 is connected with the lower end of the supporting plate 15, the control valve comprises a valve seat 6, a spring 5, a valve core 7, a first trigger switch 7-1 and a second trigger switch 7-2, the spring 5 and the valve core 7 are installed in the valve seat 6, the spring 5 is sleeved on the upper portion of the valve core 7, and the first trigger switch 7-1 and the second trigger switch 7-2 are arranged on the valve seat 6.
The utility model can realize the positive and negative bidirectional rotation of the direct current motor 1 and the reducer 2 and the adjustment of the rotating speed through electrical control, the bearing connecting mechanism 14 is connected between the direct current motor reducing mechanism and the lead screw transmission mechanism to transmit the rotating motion of the direct current motor reducing mechanism to the lead screw transmission mechanism, the lead screw transmission mechanism converts the rotating motion of the direct current motor reducing mechanism into linear motion, the lead screw nut 4 drives the piston rod 9 to move up and down through the connecting rod 13, the piston rod 9 drives the piston 11 to move linearly relative to the cylinder 10, the suction of the cylinder chamber 11-1 is completed, when the piston rod 9 moves to the upper part, the mandril 8 drives the valve core 7 of the control valve to move upwards, and the valve core 7 touches the first trigger switch 7-1 and the second trigger switch 7-2 to realize the control of the stop and the movement of other parts of the formation tester.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (5)
1. A pressure measuring cylinder comprises a direct current motor speed reducing mechanism, a bearing connecting mechanism, a lead screw transmission mechanism, a pressure measuring cylinder mechanism and a connecting framework (12), and is characterized in that the direct current motor speed reducing mechanism is connected with the lead screw transmission mechanism through the bearing connecting mechanism (14), the lead screw transmission mechanism is connected with the pressure measuring cylinder mechanism, and the connecting framework (12) is sleeved on the bearing connecting mechanism (14) and the pressure measuring cylinder mechanism; the screw transmission mechanism comprises a screw (3), the upper end of the screw (3) is connected with a bearing connecting mechanism (14), a screw nut (4) is sleeved on the screw (3), one end of a connecting rod (13) is fixedly arranged on the screw nut (4), and the other end of the connecting rod (13) is connected with a piston rod (9); the pressure measuring cylinder barrel mechanism comprises a cylinder barrel (10), the upper end of the cylinder barrel (10) is in threaded connection with a connecting framework (12), a piston (11) is arranged in the cylinder barrel (10), the upper end of the piston (11) is connected with a piston rod (9), and a communicating hole is formed in the lower portion of the cylinder barrel (10).
2. The pressure measuring cylinder according to claim 1, wherein a control valve is fixedly mounted in the connecting framework (12), the control valve is located below the screw nut (4), the control valve comprises a valve seat (6), a spring 5, a valve core (7), a first trigger switch (7-1) and a second trigger switch (7-2), the spring 5 and the valve core (7) are mounted in the valve seat (6), the spring 5 is sleeved on the upper portion of the valve core (7), and the first trigger switch (7-1) and the second trigger switch (7-2) are arranged on the valve seat (6).
3. The pressure measuring cylinder according to claim 2, characterized in that the lower end of the screw (3) is connected with a drawn cup needle bearing; the drawn cup needle roller bearing is connected with a support plate (15); the support disc (15) is sleeved on the connecting rod (13), and the lower end of the support disc (15) is connected with the valve seat (6).
4. A pressure measuring cylinder according to claim 2, characterized in that the upper end of the piston rod (9) is provided with a push rod (8).
5. The pressure measuring cylinder according to claim 1, characterized in that the direct current motor speed reducing mechanism comprises a direct current motor (1) and a speed reducer (2), and the output end of the speed reducer (2) is connected with the bearing connecting mechanism (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921396615.5U CN210768748U (en) | 2019-08-27 | 2019-08-27 | Pressure measuring cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921396615.5U CN210768748U (en) | 2019-08-27 | 2019-08-27 | Pressure measuring cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210768748U true CN210768748U (en) | 2020-06-16 |
Family
ID=71033577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921396615.5U Expired - Fee Related CN210768748U (en) | 2019-08-27 | 2019-08-27 | Pressure measuring cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210768748U (en) |
-
2019
- 2019-08-27 CN CN201921396615.5U patent/CN210768748U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20210827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |