CN203025062U - Drilling fluid density sensor - Google Patents
Drilling fluid density sensor Download PDFInfo
- Publication number
- CN203025062U CN203025062U CN 201220635508 CN201220635508U CN203025062U CN 203025062 U CN203025062 U CN 203025062U CN 201220635508 CN201220635508 CN 201220635508 CN 201220635508 U CN201220635508 U CN 201220635508U CN 203025062 U CN203025062 U CN 203025062U
- Authority
- CN
- China
- Prior art keywords
- transmitter
- explosion
- drilling fluid
- density sensor
- fluid density
- 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 - Lifetime
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Abstract
The utility model provides a drilling fluid density sensor which comprises a transmitter, an explosion-proof enclosure, sensing diaphragms, retaining screws, an explosion-proof joint and sensing diaphragm protection covers. The drilling fluid density sensor is characterized by wholly consisting of a transmitter, a mounting pipe and the sensing diaphragms, one side of the transmitter is fixed on the upper end of the mounting pipe through the retaining screws, a shell of the mounting pipe is wrapped with the explosion-proof enclosure, the other side of the transmitter is provided with the explosion-proof joint, the sensing diaphragms are fixed on the other end of the explosion-proof enclosure, the sensing diaphragm protection covers are fixed on the sensing diaphragms. According to the drilling fluid density sensor, the two sensing diaphragms measure drilling liquid differential pressure, two data are transmitted to the transmitter and are calculated, and then the message is transmitted outward. A connecting rod of the drilling fluid density sensor adopts the explosion-proof enclosure, and is not easy to destruct and is not easy to corrode, so that the working life is prolonged virtually.
Description
Technical field
The utility model relates to a kind of density sensor, relates in particular to the density sensor of use field application.
Background technology
the drilling fluid density on-line measurement is to be difficult to resolve certainly problem in drilling engineering, because drilling fluid is ceaselessly to circulate, drilling fluid in suction pit also will ceaselessly stir, its range of temperature is larger, the environment of situ of drilling well is also more abominable, what use now is generally float, hoist cable and pulling force sensor, these all are based upon on the stationary fluid mechanical foundation, because drilling fluid is not static, cause measurement result inaccurate so be easy to produce deviation when using, and sensor will be put among liquid when measuring, time can produce corrosion phenomenon after having grown and shorten serviceable life.
Summary of the invention
According to above technical matters; the utility model provides a kind of drilling fluid density sensor; comprise transmitter, explosion-resistant enclosure, reaction diaphragm, fixed screw, Explosion proof joint, reaction diaphragm protective cover; it is characterized in that integral body is comprised of transmitter, mounting pipe and reaction diaphragm; transmitter one side is fixed on the mounting pipe upper end by fixed screw; described mounting pipe shell is enclosed with explosion-resistant enclosure; the transmitter opposite side is equipped with Explosion proof joint; the explosion-resistant enclosure other end has been fixed with reaction diaphragm, and described reaction diaphragm is fixed with the reaction diaphragm protective cover.
Described reaction diaphragm is the micro-pressure-difference reaction diaphragm.
Described transmitter is differential pressure transmitter with sealed type septum.
Described mounting pipe lower end is fixed with two reaction diaphragms.
The beneficial effects of the utility model are: the utility model adopts import differential pressure transmitter with sealed type septum and mounting bracket to be formed by connecting, its transmitter partly adopts monocrystalline silicon resonance, microelectron-mechanical New Machining Technology, has high precision, high stability and high reliability.Two reaction diaphragms of the present utility model are measured drilling fluid pressure reduction, then reportedly give transmitter with two numbers and calculate, and then information are outwards transmitted.Connecting link of the present utility model adopts explosion-resistant enclosure, and not fragile difficult corrosion has extended serviceable life virtually.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structure of transmitter schematic diagram;
Fig. 3 is the reaction diaphragm structural representation.
Embodiment
According to shown in Figure 1, the utility model is further illustrated:
As Fig. 1, transmitter-1, explosion-resistant enclosure-2, reaction diaphragm-3, fixed screw-4, Explosion proof joint-5, reaction diaphragm protective cover-6.
Embodiment 1
First reaction diaphragm protective cover 6 is fixed on reaction diaphragm 3 during installation; and then Explosion proof joint 5 is fixed on transmitter 1; again explosion-resistant enclosure 2 is fixed on mounting pipe; at last mounted transmitter 1 is fixed on the upper end of mounting pipe by fixed screw 4,2 reaction diaphragms 3 is fixed on the diverse location of mounting pipe lower end.
When the utility model uses, two reaction diaphragms 3 that are arranged on differing heights are measured drilling fluid pressure reduction, and respectively differential pressure signal is converted to frequency signal by two H shape walking beams on the monocrystalline silicon resonant transducer, deliver to impulse meter, be directly delivered to the CPU(microprocessor in the difference with two frequencies) carry out the data processing, be converted to the output signal of the DC4-20mA corresponding with drilling fluid density through D/A.
Claims (4)
1. drilling fluid density sensor, comprise transmitter (1), explosion-resistant enclosure (2), reaction diaphragm (3), fixed screw (4), Explosion proof joint (5), reaction diaphragm protective cover (6), it is characterized in that whole by transmitter (1), mounting pipe and reaction diaphragm (3) form, transmitter (1) one side is fixed on the mounting pipe upper end by fixed screw (4), described mounting pipe shell is enclosed with explosion-resistant enclosure (2), transmitter (1) opposite side is equipped with Explosion proof joint (5), explosion-resistant enclosure (2) other end has been fixed with reaction diaphragm (3), described reaction diaphragm (3) is fixed with reaction diaphragm protective cover (6).
2. according to drilling fluid density sensor claimed in claim 1, it is characterized in that described reaction diaphragm (3) is the micro-pressure-difference reaction diaphragm.
3. according to drilling fluid density sensor claimed in claim 1, it is characterized in that described transmitter (1) is differential pressure transmitter with sealed type septum.
4. according to drilling fluid density sensor claimed in claim 1, it is characterized in that described mounting pipe lower end is fixed with two reaction diaphragms (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635508 CN203025062U (en) | 2012-11-26 | 2012-11-26 | Drilling fluid density sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635508 CN203025062U (en) | 2012-11-26 | 2012-11-26 | Drilling fluid density sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025062U true CN203025062U (en) | 2013-06-26 |
Family
ID=48649041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635508 Expired - Lifetime CN203025062U (en) | 2012-11-26 | 2012-11-26 | Drilling fluid density sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025062U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356366A (en) * | 2017-07-14 | 2017-11-17 | 成都众山科技有限公司 | The application method of the explosion-proof transmitter of battery-operated type |
| CN107654203A (en) * | 2017-09-28 | 2018-02-02 | 中石化石油工程技术服务有限公司 | Drilling hydraulic differential density sensor current stabilization bogey |
-
2012
- 2012-11-26 CN CN 201220635508 patent/CN203025062U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356366A (en) * | 2017-07-14 | 2017-11-17 | 成都众山科技有限公司 | The application method of the explosion-proof transmitter of battery-operated type |
| CN107654203A (en) * | 2017-09-28 | 2018-02-02 | 中石化石油工程技术服务有限公司 | Drilling hydraulic differential density sensor current stabilization bogey |
| CN107654203B (en) * | 2017-09-28 | 2024-03-05 | 中石化石油工程技术服务股份有限公司 | Steady flow bearing device for drilling fluid pressure difference type density sensor |
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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 |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |