CN102444399A - High resolution drilling fluid returning flow meter - Google Patents
High resolution drilling fluid returning flow meter Download PDFInfo
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- CN102444399A CN102444399A CN2010105021063A CN201010502106A CN102444399A CN 102444399 A CN102444399 A CN 102444399A CN 2010105021063 A CN2010105021063 A CN 2010105021063A CN 201010502106 A CN201010502106 A CN 201010502106A CN 102444399 A CN102444399 A CN 102444399A
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Abstract
Provided are a method and a device for measuring returning drilling fluid during oil and natural gas drilling processes. The device uses that content of ultrasonic wave is different in drilling well fluid. The emission speed of ultrasonic wave is different, and the frequency is different. Simultaneously, emission devices and receiving devices are arranged at different position on the outer wall of a deepwater drill well water separation pipe. A detection system is utilized to record emission and receiving parameters of the ultrasonic wave. Returning drill well fluid flow can be accurately measured according to fixed computer modules, thereby drilling wells safely and efficiently.
Description
Technical field:
High-resolution drilling fluid of the present invention returns the outflow meter; Be meant a kind of device and technology that returns out mud flow rate that in oil, gas drilling, be used to measure especially; Realized measuring mud flow rate when containing natural gas, for grasp well control is promptly and accurately dynamically laid a solid foundation.
Background technology:
In the middle of the oil and gas well drilling process; It is the important work of petroleum exploration and development work that mud flow rate is returned out in measurement; After gas is invaded drilling fluid how high accuracy, true, accurately measure and return out mud flow rate and become the problem that petroleum industrial circle need be explored, judge whether overflow early, and then adopt an effective measure; Prevent blowout and blowout out of control, reduce various losses.
Return outflow to drilling fluid and have several kinds of schemes at present, wherein utilization is exactly at most the baffle-type flow meter, utilizes the baffle-type principle, when drilling fluid flows through baffle plate; Baffle plate is had impact force, and along with the difference of flow, the impact force of its baffle plate is different; Its impact force and flow are certain relation, and this flow meter component is less, can use for a long time; After but this kind flow meter used a period of time, drilling fluid will be bonded on the baffle plate, thereby when causing utilizing identical baffle plate; After service time was long, certainty of measurement descended, and needed regularly baffle plate to be cleaned.Through calculating, return outflow when 24L/s is increased to 25L/s, because the viscous effect of mud, its rising has only about 2%, this causes baffle-type flow meter precision when mud flow rate is returned out in actual measurement not enough.The effect of different accurately prediction gas cuts.
The mode of second kind of measuring drilling fluid flow is: the variation of measuring the mud pit level height reflects returns out the pipeline mud flow rate, employing be similar to float level meter, through the variation of float position; Change into the variation of mud pit liquid level, change into into flow again, the shortcoming of this method is responsive for the volume ratio of container; Vessel volume is big more, and when volumetric change was identical, liquid level change was more little; When for example flow was increased to 25L/s from 24L/s, in 5 meters square mud pits, 1 hour level change was 16.61mm; It is longer to delay time, and is difficult to satisfy the needs that on-the-spot high-acruracy survey is returned out the pipeline mud flow rate.
The mode of the third measuring drilling fluid flow is: measure the shunt volume reflection through branched pipe and return out the pipeline flow; Its principle is through returning out one section branched pipe of parallel connection below the pipeline, returns out the pipeline flow through the flow reflection of measuring tubule, and its shortcoming is that free surface is less to the branched pipe flow effect; Increase when being twice when returning outflow; Its branched pipe flow adopts significant change, and precision is lower, can not satisfy actual needs.
Other some flow meters in addition, though more such as orifice flowmeter, electromagnetic flowmeter etc. in the other industry utilization, be non-full packages owing to return out the pipeline flow, influence very big to its certainty of measurement.
Summary of the invention:
The objective of the invention is to realize through following technical scheme:
As shown in Figure 2; Sustained height is installed ultrasonic wave and Doppler's emission and receiving transducer simultaneously in the marine riser outside; Ultrasonic wave and Doppler emission is installed simultaneously makes full use of ultrasonic wave in the advantage of time difference method and the advantage of Doppler frequency shift, detect the minor variations of flow simultaneously with receiving transducer.
Whole signal supervisory instrument is as shown in Figure 2; Outside 21.5 inches marine risers, spend 4 groups of ultrasonic emitting/receiving systems of arranged, 4 groups of Doppler's transmission/receptions with interval 45 with the certain altitude difference; For guaranteeing the anti-interference of ultrasonic wave/Doppler signal; Preset 4 groups of different wave length signals respectively, be respectively applied for ultrasonic emitting/receiving system and use.Preset 4 groups of different frequency signals of another frequency range simultaneously, be respectively applied for Doppler's transmission/reception and use.As shown in Figure 3, whole signal supervisory instrument utilizes clip to be close to the marine riser outer wall.
Detected ultrasonic signal and Doppler signal are through amplification, filtering, and the A/D conversion becomes data signal with analog signal conversion, and the employing communication cable is transferred to computer data acquiring and handles assembling system.
The built-in computer ultrasonic wave is propagated computation model with Doppler signal in different drilling fluids, utilize this Model Calculation to go out to return out the flow of drilling fluid in marine riser.
Measure the method and apparatus that returns out mud flow rate in the middle of a kind of oil and the gas drilling process.This device is to utilize ultrasonic wave different at gas with various content in drilling fluid; Its ultrasonic emitting speed is different, and frequency is different, simultaneously through arranging emitter and receiving system simultaneously at deepwater drilling marine riser outer wall diverse location; And write down hyperacoustic emission and receive parameter through detection system; According to fixing computation model, accurately measure and return out mud flow rate, and then realize safe and efficient drilling well.
Description of drawings:
Fig. 1 high-resolution drilling fluid returns outflow meter schematic diagram
Fig. 2 high-resolution drilling fluid returns outflow meter recoil simulator and arranges vertical view
Fig. 3 high-resolution drilling fluid returns outflow meter recoil simulator and arranges lateral view
Claims (3)
1. measure the method and apparatus that returns out mud flow rate in the middle of oil and the gas drilling process.The technical characterictic of this device is: be that multiple spot arranges ultrasonic emitting and receiving transducer simultaneously.Adopt the automatic algorithms high precision computation to remove the mud flow rate of gas in the drilling fluid in addition.
2. return the outflow meter like claim 1 described high-resolution drilling fluid, it is characterized in that: described real-time high-resolution drilling fluid returns the outflow meter and is included in multiple spot and arranges ultrasonic emitting and receiving transducer simultaneously.
3. like claim 1 described optimization for program control well killing method and device, it is characterized in that: adopt the automatic algorithms high precision computation to remove the mud flow rate of gas in the drilling fluid
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105021063A CN102444399A (en) | 2010-10-11 | 2010-10-11 | High resolution drilling fluid returning flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105021063A CN102444399A (en) | 2010-10-11 | 2010-10-11 | High resolution drilling fluid returning flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102444399A true CN102444399A (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010105021063A Pending CN102444399A (en) | 2010-10-11 | 2010-10-11 | High resolution drilling fluid returning flow meter |
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| CN (1) | CN102444399A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715254A (en) * | 2014-12-02 | 2016-06-29 | 通用电气公司 | System and method for confirming position of drill rod |
| CN110439488A (en) * | 2019-08-30 | 2019-11-12 | 中国石油集团川庆钻探工程有限公司 | System and method for measuring flow of solid-liquid fluid in drilling manifold |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207619A (en) * | 1975-02-24 | 1980-06-10 | Alf Klaveness | Seismic well logging system and method |
| CN2079657U (en) * | 1990-09-30 | 1991-06-26 | 辽河石油勘探局测井公司 | Borehole compensator for sound wave meter with single emitting and double receiving function |
| CN1124319A (en) * | 1994-12-05 | 1996-06-12 | 青岛海洋大学 | Acoustic detector for oil well radio transmitted pressure and temp. parameters |
| CN1970990A (en) * | 2006-11-29 | 2007-05-30 | 中国石油大学(北京) | Method for measuring return flow in petroleum drilling and device therefor |
-
2010
- 2010-10-11 CN CN2010105021063A patent/CN102444399A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207619A (en) * | 1975-02-24 | 1980-06-10 | Alf Klaveness | Seismic well logging system and method |
| CN2079657U (en) * | 1990-09-30 | 1991-06-26 | 辽河石油勘探局测井公司 | Borehole compensator for sound wave meter with single emitting and double receiving function |
| CN1124319A (en) * | 1994-12-05 | 1996-06-12 | 青岛海洋大学 | Acoustic detector for oil well radio transmitted pressure and temp. parameters |
| CN1970990A (en) * | 2006-11-29 | 2007-05-30 | 中国石油大学(北京) | Method for measuring return flow in petroleum drilling and device therefor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715254A (en) * | 2014-12-02 | 2016-06-29 | 通用电气公司 | System and method for confirming position of drill rod |
| CN110439488A (en) * | 2019-08-30 | 2019-11-12 | 中国石油集团川庆钻探工程有限公司 | System and method for measuring flow of solid-liquid fluid in drilling manifold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Xiangfang Inventor after: Ren Meipeng Inventor after: Sui Xiuxiang Inventor after: Wu Keliu Inventor after: Shi Juntai Inventor after: Yin Bangtang Inventor after: Lei Lin Inventor before: Li Xiangfang Inventor before: Sui Xiuxiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI XIANGFANG SUI XIUXIANG TO: LI XIANGFANG REN MEIPENG SUI XIUXIANG WU KELIU SHI JUNTAI YIN BANGTANG LEI LIN |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120509 |