CN201581892U - Special pressure sensor for petroleum drilling, crushing and well cementation - Google Patents
Special pressure sensor for petroleum drilling, crushing and well cementation Download PDFInfo
- Publication number
- CN201581892U CN201581892U CN2009202970717U CN200920297071U CN201581892U CN 201581892 U CN201581892 U CN 201581892U CN 2009202970717 U CN2009202970717 U CN 2009202970717U CN 200920297071 U CN200920297071 U CN 200920297071U CN 201581892 U CN201581892 U CN 201581892U
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- pressure sensor
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- signal processing
- elastic structure
- shell
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Abstract
The utility model discloses a special pressure sensor for petroleum drilling, crushing and well cementation, comprising an elastic structure, a metal strain gauge, a signal processing unit, a shell and a metal sealing plug, wherein the elastic structure is internally provided with an element cavity and a strain area; the metal strain gauge is clung to the inner wall of the element cavity; the signal processing unit is arranged in the element cavity; the elastic structure is tightly connected with the shell; the metal sealing plug is arranged on the shell; the output line of the signal processing unit is connected to a connector positioned inside the shell of the metal sealing plug; a connector positioned outside the shell of the metal sealing plug is used for being connected with a data receiving device. The integral structure of the pressure sensor does not have weld joints and O-shaped seal rings, does not need screw thread fixation and oil charge in installation and using, and has strong overload resisting capability, long service life, safety, reliability and good temperature performance.
Description
Technical field
The utility model relates to oil drilling equipment technology field, relates in particular to a kind of oil drilling, pressure break, well cementation special pressure sensor.
Background technology
At present, using maximum on the domestic petroleum drilling equipment is the silicon piezoresistive pressure sensor, and the sensor of this principle can not adapt to big pressure test, and maximum can only be measured the pressure of 60MPa, and anti-overload ability is poor, generally only can anti-120%R.O; In addition, the pressure sensor inside of silicon piezoresistive principles is oil-filled, and leakage of oil easily takes place, and easily advances mud, and oil easily solidifies under low temperature environment, thereby causes pressure sensor to lose efficacy, so application life is short; The pressure sensor of present domestic application is to be fixed on the special joint by screw thread during use, and when screw thread had damage because of frequent loading and unloading, instantaneous pressure was excessive, and pressure sensor flies out after the screw thread fracture of damage often, and the personnel that cause injure.
The utility model content
The purpose of this utility model provides a kind of oil drilling, pressure break, well cementation special pressure sensor.
A kind of oil drilling, pressure break, well cementation special pressure sensor, wherein: comprise elastic structure, metal strain meter, signal processing unit, housing, metallic seal plug, one component cavity and a strain regions are arranged in the elastic structure, the metal strain meter is close on the inwall of component cavity, signal processing unit is arranged in the component cavity, and elastic structure closely is connected with housing; The metallic seal plug is arranged on the housing, and the outlet line of signal processing unit is connected on the connector that is positioned at enclosure interior of metallic seal plug, and the connector that is positioned at hull outside of metallic seal plug is used for being connected with data sink.
Described oil drilling, pressure break, well cementation special pressure sensor, wherein: described signal processing unit comprises processor, amplifying circuit, the signal of processor is come in and gone out and is held the signal output part that connects the metal strain meter, the signal output part of processor connects the signal output part of amplifying circuit, and the signal output part of amplifying circuit is connected on the connector that is positioned at enclosure interior of metallic seal plug.
Described oil drilling, pressure break, well cementation special pressure sensor, wherein: be connected by screw between elastic structure and the housing.
The utility model adopts technique scheme will reach following technique effect:
Oil drilling of the present utility model, pressure break, well cementation special pressure sensor, deformation by elastic structure is transmitted on the metal strain meter, gather deformation quantity and be converted into the signal of telecommunication by the metal strain meter and output to signal processing unit, pass to data sink by the metallic seal plug after the signal processing unit processes, elastic structure, metallic seal plug all seal the both ends open of housing, waterproof, antifouling prevents dirt, water enter influences pressure sensor in the housing life-span; The pressure sensor overall structure do not have weld seam, do not have O-ring seals, need not screw thread when installing and using fixes, need not oil-filled, and maximum anti-overload ability reaches 500%R.O, and long service life is also safe and reliable.And the above-mentioned design of pressure sensor has good temperature performance, can satisfy-55 ~ 125 ℃ use, and this also is that silicon piezoresistive transducer is beyond one's reach.
Description of drawings
Fig. 1 is the structure chart of oil drilling of the present utility model, pressure break, well cementation special pressure sensor;
Fig. 2 is the johning knot composition of processor, amplifying circuit in metal strain meter and the signal processing unit in the pressure sensor shown in Figure 1.
The specific embodiment
A kind of oil drilling, pressure break, well cementation special pressure sensor, as shown in Figure 1, comprise elastic structure 1, metal strain meter 2, signal processing unit 3, housing 5, metallic seal plug 4, one component cavity and a strain regions are arranged in the elastic structure 1, metal strain meter 2 is close on the inwall of component cavity, signal processing unit 3 is arranged in the component cavity, closely is connected by screw 6 between elastic structure 1 and the housing 5, with the opening sealing of housing 5; Metallic seal plug 4 is arranged on the housing 5, and the outlet line of signal processing unit 3 is connected on the connector that is positioned at housing 5 inside of metallic seal plug 4, and the connector that is positioned at housing 5 outsides of metallic seal plug 4 is used for being connected with data sink.Label 1a indication be the strain regions of elastic structure 1, metal strain meter 2 correspondences on the elastic structure 1 in the component cavity are arranged on the position of the corresponding deformation of strain regions 1a.
As shown in Figure 2, described signal processing unit 3 comprises processor, amplifying circuit, the signal of processor is come in and gone out and is held the signal output part that connects metal strain meter 2, the signal output part of processor connects the signal output part of amplifying circuit, and the signal output part of amplifying circuit is connected on the connector that is positioned at housing 5 inside of metallic seal plug 4.
Oil drilling of the present utility model, pressure break, well cementation special pressure sensor are gathered the deformation quantity of elastic structure by the metal strain meter and are changed into the signal of telecommunication and send into signal processing unit and handle, export, the pressure sensor overall structure does not have weld seam, no O-ring seals, need not screw thread when installing and using fixes, need not oil-filled, maximum anti-overload ability reaches 500%R.O, long service life.Adopt accurate signal processing circuit unit, can make the pressure sensor precision reach 0.1%.Oil drilling of the present utility model, pressure break, well cementation special pressure sensor also have good temperature performance, can satisfy-55 ~ 125 ℃ use, and this also is that silicon piezoresistive transducer is beyond one's reach.
Claims (3)
1. an oil drilling, pressure break, well cementation special pressure sensor, it is characterized in that: comprise elastic structure, metal strain meter, signal processing unit, housing, metallic seal plug, one component cavity and a strain regions are arranged in the elastic structure, the metal strain meter is close on the inwall of component cavity, signal processing unit is arranged in the component cavity, and elastic structure closely is connected with housing; The metallic seal plug is arranged on the housing, and the outlet line of signal processing unit is connected on the connector that is positioned at enclosure interior of metallic seal plug, and the connector that is positioned at hull outside of metallic seal plug is used for being connected with data sink.
2. oil drilling as claimed in claim 1, pressure break, well cementation special pressure sensor, it is characterized in that: described signal processing unit comprises processor, amplifying circuit, the signal of processor is come in and gone out and is held the signal output part that connects the metal strain meter, the signal output part of processor connects the signal output part of amplifying circuit, and the signal output part of amplifying circuit is connected on the connector that is positioned at enclosure interior of metallic seal plug.
3. oil drilling as claimed in claim 1 or 2, pressure break, well cementation special pressure sensor is characterized in that: be connected by screw between elastic structure and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202970717U CN201581892U (en) | 2009-12-17 | 2009-12-17 | Special pressure sensor for petroleum drilling, crushing and well cementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202970717U CN201581892U (en) | 2009-12-17 | 2009-12-17 | Special pressure sensor for petroleum drilling, crushing and well cementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201581892U true CN201581892U (en) | 2010-09-15 |
Family
ID=42723890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202970717U Expired - Lifetime CN201581892U (en) | 2009-12-17 | 2009-12-17 | Special pressure sensor for petroleum drilling, crushing and well cementation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201581892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277080A (en) * | 2013-06-05 | 2013-09-04 | 中国石油集团渤海钻探工程有限公司 | Winding sensor for fracturing operation |
-
2009
- 2009-12-17 CN CN2009202970717U patent/CN201581892U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277080A (en) * | 2013-06-05 | 2013-09-04 | 中国石油集团渤海钻探工程有限公司 | Winding sensor for fracturing operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |