CN204188483U - Drilling fluid density sensor - Google Patents
Drilling fluid density sensor Download PDFInfo
- Publication number
- CN204188483U CN204188483U CN201420595626.7U CN201420595626U CN204188483U CN 204188483 U CN204188483 U CN 204188483U CN 201420595626 U CN201420595626 U CN 201420595626U CN 204188483 U CN204188483 U CN 204188483U
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- China
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- drilling fluid
- weight body
- pulling force
- extension bar
- force sensor
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Abstract
The utility model relates to drilling fluid density measuring device technical field, is a kind of drilling fluid density sensor, comprises mounting rod, armored cassette, transmission circuit plate, pulling force sensor, connecting link and weight body; Armored cassette internal fixtion is provided with transmission circuit plate, transmission circuit plate is provided with density signal input end, density signal output terminal, energization input and power supply output terminal, and density signal input end and power supply output terminal are electrically connected with the signal output part of pulling force sensor and feeder ear respectively; The elastomeric bottom of pulling force sensor is installed with connecting link, and the bottom of connecting link is installed with weight body.The utility model reasonable and compact in structure, it receives the signal of pulling force sensor by density signal input end, sends density signal after then completing data-signal process by transmission circuit plate by density signal output terminal to the device reading density; There is structure simple, easy for installation, be not limited to the impact of environment, and the feature that precision is high.
Description
Technical field
the utility model relates to drilling fluid density measuring device technical field, is a kind of drilling fluid density sensor.
Background technology
drilling fluid density sensor conventional is at present main mainly with differential density sensor, it uses the pressure transmission of sealing oil circuit, and by measure interval install diaphragm between pressure differential complete density measure, there is complex structure heaviness in it, require higher to installation environment, carry and inconvenience is installed, and the problem that measuring accuracy is undesirable.
Summary of the invention
the utility model provides a kind of drilling fluid density sensor, overcome the deficiency of above-mentioned prior art, it effectively can solve existing differential density sensor and there is complex structure heaviness, requires higher to installation environment, carry and inconvenience is installed, and the problem that measuring accuracy is undesirable.
the technical solution of the utility model is realized by following measures: a kind of drilling fluid density sensor, comprises mounting rod, armored cassette, transmission circuit plate, pulling force sensor, connecting link and weight body; Mounting rod is installed with armored cassette and pulling force sensor respectively; Armored cassette internal fixtion is provided with transmission circuit plate, transmission circuit plate is provided with density signal input end, density signal output terminal, energization input and power supply output terminal, and density signal input end and power supply output terminal are electrically connected with the signal output part of pulling force sensor and feeder ear respectively; The elastomeric bottom of pulling force sensor is installed with connecting link, and the bottom of connecting link is installed with weight body.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned weight body can in cone-shaped, and the top of weight body is fixed with abutment ring, and connecting link and weight body are fixedly installed togather by abutment ring.
above-mentioned weight body can be conulite shape, weight body has the counterweight window communicated with its inner chamber, is provided with and can loads and unloads and the counterweight plug that can seal in counterweight window.
can have endosiphuncular tube screw thread in above-mentioned counterweight window, counterweight plug is the plug that can match with endosiphuncular tube screw thread.
the mounting rod of above-mentioned corresponding weight body position can be installed with the protective cover being centered around weight body surrounding, protective cover is intervally distributed with liquid-through hole.
above-mentioned protective cover can be circular or square tubular in cross section, and protective cover has liquid-through hole uniformly at intervals.
above-mentioned connecting link can comprise extension bar, buffer spring and lower extension bar, upper extension bar, buffer spring and lower extension bar are from top to bottom fixedly installed togather successively, the upper end of upper extension bar and the elastomeric bottom of pulling force sensor are fixedly installed togather, and the bottom of lower extension bar and the upper end of weight body are fixedly installed togather.
on above-mentioned transmission circuit plate, accessible site has the constant-current source circuit of band temperature compensation, the output signal of pulling force sensor can be amplified and be adjusted to the signal amplification circuit of the convenient voltage signal directly measured and can regulate the regulating circuit of gain and zero-bit.
the utility model reasonable and compact in structure, it can improve density measurement accuracy by adopting pulling force sensor, during use, be that transmission circuit plate is powered by external power source input end, again by power supply output terminal be that pulling force sensor is powered, and the differential voltage signal of pulling force sensor is received by density signal input end, send density signal by density signal output terminal to the device reading density after then can completing data-signal process by transmission circuit plate; There is structure simple, easy to install, be not limited to the impact of environment, and the feature that measuring accuracy is high.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of the utility model most preferred embodiment.
accompanying drawing 2 is that broken section structural representation is looked on the right side of accompanying drawing 1.
coding in accompanying drawing is respectively: 1 for mounting rod, and 2 is armored cassette, and 3 is pulling force sensor, and 4 attach most importance to hammer body, and 5 is abutment ring, and 6 is counterweight plug, and 7 is protective cover, and 8 is liquid-through hole, and 9 is upper extension bar, and 10 is buffer spring, and 11 is lower extension bar.
Embodiment
the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2, this drilling fluid density sensor comprises mounting rod 1, armored cassette 2, transmission circuit plate, pulling force sensor 3, connecting link and weight body 4; Mounting rod 1 is installed with respectively armored cassette 2 and pulling force sensor 3; Armored cassette 2 internal fixtion is provided with transmission circuit plate, transmission circuit plate is provided with density signal input end, density signal output terminal, energization input and power supply output terminal, and density signal input end and power supply output terminal are electrically connected with the signal output part of pulling force sensor 3 and feeder ear respectively; The elastomeric bottom of pulling force sensor 3 is installed with connecting link, and the bottom of connecting link is installed with weight body 4.Pulling force sensor 3 is resistance strain type sensor again, it is a kind of device physical signalling being changed into measurable electric signal and export, its principle of work is: elastic body (flexible member, sensitive beam) produce elastic deformation under external force, make the resistance strain gage (conversion element) being pasted onto its surface also in company with producing distortion, after resistance strain gage distortion, its resistance will change (increase or reduce), through corresponding metering circuit, this resistance variations is converted to electric signal (voltage or electric current) again, thus complete process external force being transformed to electric signal, there is precision high, measurement range is wide, life-span is long, structure is simple, good frequency response, can work under severe conditions, be easy to realize miniaturization, the advantage such as integration and diversification of varieties.In use, density signal output terminal and the device reading density are electrically connected, energization input and external power source are electrically connected, then move mounting rod 1 and weight body 4 is submerged in drilling fluid completely; Now, be that transmission circuit plate is powered by external power source input end, again by power supply output terminal be that pulling force sensor 3 is powered, and the differential voltage signal of pulling force sensor 3 is received by density signal input end, send density signal by density signal output terminal to the device reading density after then can completing data-signal process by transmission circuit plate; The electric signal making it export by the setting of adjustment transmission circuit plate is again directly proportional to the buoyancy that it is subject to, and according to Archimedes's theorem, buoyancy is proportional to drilling fluid density, can measure the density of drilling fluid thus; By weight body 4 is immersed in completely diverse location drilling fluid in measure multi-group data, then ask for its mean value, thus improve its measuring accuracy; It is simple that it has structure, easy to install, is not limited to the impact of environment, and the feature that measuring accuracy is high.
according to actual needs, above-mentioned drilling fluid density sensor can be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, weight body 4 is in cone-shaped, and the top of weight body 4 is fixed with abutment ring 5, and connecting link and weight body 4 are fixedly installed togather by abutment ring 5.Can be convenient to like this identify whether weight body 4 is submerged in drilling fluid completely, and can error be reduced, improve measuring accuracy.
as shown in accompanying drawing 1,2, weight body 4, in conulite shape, weight body 4 has the counterweight window communicated with its inner chamber, is provided with and can loads and unloads and the counterweight plug 6 that can seal in counterweight window.Can be convenient to like this make it carry out counterweight according to actual conditions, thus guarantee that weight body 4 can be submerged in the drilling fluid of various situation completely, meet multiple demand.According to demand, counterweight window can be positioned at the sidewall of weight body 4 or the optional position of bottom; And counterweight plug 6 can adopt existing known technology, as plug etc.
as shown in accompanying drawing 1,2, have endosiphuncular tube screw thread in counterweight window, counterweight plug 6 is the plug that can match with endosiphuncular tube screw thread.Adopt taper-thread to realize excellent sealing, also there is feature easy to loading and unloading.According to demand, when counterweight plug 6 is plug, the end face of its screw terminal can be provided with an interior word or cross recess.
as shown in accompanying drawing 1,2, the mounting rod 1 of corresponding weight body 4 position is installed with the protective cover 7 being centered around weight body 4 surrounding, protective cover 7 is intervally distributed with liquid-through hole 8.Because drilling fluid has the disturbance of a bit, set up the problem that buffer spring 10 can slow down the detection signal instability caused because of drilling fluid disturbance, thus improve measuring accuracy.
as shown in accompanying drawing 1,2, protective cover 7 is circular or square tubular in cross section, and protective cover 7 has liquid-through hole 8 uniformly at intervals.Can further improve measuring accuracy like this.
as shown in accompanying drawing 1,2, connecting link comprises extension bar 9, buffer spring 10 and lower extension bar 11, upper extension bar 9, buffer spring 10 and lower extension bar 11 are from top to bottom fixedly installed togather successively, the upper end of upper extension bar 9 and the elastomeric bottom of pulling force sensor 3 are fixedly installed togather, and the bottom of lower extension bar 11 and the upper end of weight body 4 are fixedly installed togather.Because drilling fluid has the disturbance of a bit, set up the problem that buffer spring 10 can slow down the detection signal instability caused because of drilling fluid disturbance further, improve its measuring accuracy.
as shown in accompanying drawing 1,2, transmission circuit plate is integrated with the constant-current source circuit of band temperature compensation, the output signal of pulling force sensor 3 can be amplified and be adjusted to the signal amplification circuit of the convenient voltage signal directly measured and the regulating circuit of gain and zero-bit can be regulated.According to demand, constant-current source circuit, signal amplification circuit and regulating circuit all can adopt existing known technology.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (10)
1. a drilling fluid density sensor, is characterized in that comprising mounting rod, armored cassette, transmission circuit plate, pulling force sensor, connecting link and weight body; Mounting rod is installed with armored cassette and pulling force sensor respectively; Armored cassette internal fixtion is provided with transmission circuit plate, transmission circuit plate is provided with density signal input end, density signal output terminal, energization input and power supply output terminal, and density signal input end and power supply output terminal are electrically connected with the signal output part of pulling force sensor and feeder ear respectively; The elastomeric bottom of pulling force sensor is installed with connecting link, and the bottom of connecting link is installed with weight body.
2. drilling fluid density sensor according to claim 1, it is characterized in that weight body is cone-shaped, the top of weight body is fixed with abutment ring, and connecting link and weight body are fixedly installed togather by abutment ring.
3. drilling fluid density sensor according to claim 2, is characterized in that weight body is conulite shape, weight body has the counterweight window communicated with its inner chamber, is provided with and can loads and unloads and the counterweight plug that can seal in counterweight window.
4. drilling fluid density sensor according to claim 3, is characterized in that there is endosiphuncular tube screw thread in counterweight window, and counterweight plug is the plug that can match with endosiphuncular tube screw thread.
5. the drilling fluid density sensor according to claim 1 or 2 or 3 or 4, the mounting rod that it is characterized in that corresponding weight body position is installed with the protective cover being centered around weight body surrounding, protective cover is intervally distributed with liquid-through hole.
6. drilling fluid density sensor according to claim 5, is characterized in that protective cover to be cross section is circular or square tubular, protective cover has liquid-through hole uniformly at intervals.
7. the drilling fluid density sensor according to claim 1 or 2 or 3 or 4 or 6, it is characterized in that connecting link comprises extension bar, buffer spring and lower extension bar, upper extension bar, buffer spring and lower extension bar are from top to bottom fixedly installed togather successively, the upper end of upper extension bar and the elastomeric bottom of pulling force sensor are fixedly installed togather, and the bottom of lower extension bar and the upper end of weight body are fixedly installed togather.
8. drilling fluid density sensor according to claim 5, it is characterized in that connecting link comprises extension bar, buffer spring and lower extension bar, upper extension bar, buffer spring and lower extension bar are from top to bottom fixedly installed togather successively, the upper end of upper extension bar and the elastomeric bottom of pulling force sensor are fixedly installed togather, and the bottom of lower extension bar and the upper end of weight body are fixedly installed togather.
9. the drilling fluid density sensor according to claim 1 or 2 or 3 or 4 or 6 or 8, is characterized in that transmission circuit plate is integrated with and is with the constant-current source circuit of temperature compensation, the output signal of pulling force sensor can be amplified and is adjusted to the signal amplification circuit facilitating the voltage signal directly measured and the regulating circuit that can regulate gain and zero-bit.
10. drilling fluid density sensor according to claim 7, is characterized in that transmission circuit plate is integrated with and is with the constant-current source circuit of temperature compensation, the output signal of pulling force sensor can be amplified and is adjusted to the signal amplification circuit facilitating the voltage signal directly measured and the regulating circuit that can regulate gain and zero-bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595626.7U CN204188483U (en) | 2014-10-15 | 2014-10-15 | Drilling fluid density sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595626.7U CN204188483U (en) | 2014-10-15 | 2014-10-15 | Drilling fluid density sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204188483U true CN204188483U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420595626.7U Expired - Fee Related CN204188483U (en) | 2014-10-15 | 2014-10-15 | Drilling fluid density sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204188483U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300835A (en) * | 2015-11-19 | 2016-02-03 | 中国石油集团西部钻探工程有限公司 | Liquid density online measuring device |
| CN106568678A (en) * | 2016-10-14 | 2017-04-19 | 李晨天 | Micro movement hammer liquid density meter based on end dynamic data analysis technology |
| CN110567845A (en) * | 2018-06-06 | 2019-12-13 | 中国石油天然气股份有限公司 | Liquid density monitoring device and method |
| CN111781093A (en) * | 2020-07-06 | 2020-10-16 | 中国石油天然气集团有限公司 | Telescopic multifunctional drilling fluid detection device |
| CN112255140A (en) * | 2020-10-10 | 2021-01-22 | 柳州工学院 | Intelligent liquid density detector |
-
2014
- 2014-10-15 CN CN201420595626.7U patent/CN204188483U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300835A (en) * | 2015-11-19 | 2016-02-03 | 中国石油集团西部钻探工程有限公司 | Liquid density online measuring device |
| CN105300835B (en) * | 2015-11-19 | 2018-05-29 | 中国石油集团西部钻探工程有限公司 | Liquid density on-line measurement device |
| CN106568678A (en) * | 2016-10-14 | 2017-04-19 | 李晨天 | Micro movement hammer liquid density meter based on end dynamic data analysis technology |
| CN106568678B (en) * | 2016-10-14 | 2020-12-29 | 李晨天 | Micro-motion hammer liquid densimeter based on tail end dynamic data analysis technology |
| CN110567845A (en) * | 2018-06-06 | 2019-12-13 | 中国石油天然气股份有限公司 | Liquid density monitoring device and method |
| CN111781093A (en) * | 2020-07-06 | 2020-10-16 | 中国石油天然气集团有限公司 | Telescopic multifunctional drilling fluid detection device |
| CN112255140A (en) * | 2020-10-10 | 2021-01-22 | 柳州工学院 | Intelligent liquid density detector |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20201015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |