CN104675382A - Rock debris return monitoring system and method during gas drilling - Google Patents
Rock debris return monitoring system and method during gas drilling Download PDFInfo
- Publication number
- CN104675382A CN104675382A CN201510078095.3A CN201510078095A CN104675382A CN 104675382 A CN104675382 A CN 104675382A CN 201510078095 A CN201510078095 A CN 201510078095A CN 104675382 A CN104675382 A CN 104675382A
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- winch
- landwaste
- angular displacement
- monitoring
- transmitter
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a rock debris return monitoring system during gas drilling. The rock debris return monitoring system comprises a solid flowmeter, a winch transmitter and a processor, wherein the solid flowmeter is arranged on a sand discharging pipeline, and used for monitoring the flow rate of rock debris discharged from the sand discharging pipeline, and sending the flow rate to a processor; the winch transmitter is connected to a winch of gas drilling, used for monitoring the angular displacement of the winch and sending the angular displacement to the processor; the processor is connected to the solid flowmeter and the winch transmitter, and used for comparing the received flow rate of the rock debris with the received angular displacement of the winch, and judging whether the value of the flow rate of the rock debris is matched with the angular displacement of the winch or not according to the displacement of the rock debris corresponding to the unit angular displacement. The rock debris return monitoring system during gas drilling, disclosed by the invention, can be used for monitoring the rock debris return while drilling during gas drilling.
Description
Technical field
The present invention relates to oil drilling technology field, return out monitoring system in particular to a kind of gas drilling landwaste and a kind of gas drilling landwaste returns out monitoring method.
Background technology
Gas drilling utilizes air or other gas as the drilling technology of circulatory mediator, when the stratum such as the mud shale that low pressure, leakiness or water sensitivity are strong are crept into, has the superiority that the drilling well of conventional drilling liquid is incomparable.In During Air Drilling, the landwaste that bit operation produces needs to be carried to ground by circulatory mediator, and enter in sediment outflow hole through sediment outflow pipeline, can shaft bottom landwaste return out timely and effectively, is related to safety and the efficiency of drilling well.
At present, conventional judges landwaste returns out whether normal method has: sediment outflow pipe outlet manual observation method, gas injection pressure mutation analysis method and landwaste are to the active force monitoring analysis method etc. of sediment outflow pipe, artificial situation is returned to monitoring landwaste and serves certain effect, for gas drilling safe construction provides help.
There is following problem in said method: though 1. manual observation method method is simple, because during gas drilling, landwaste amount is compared with gas flow less, is difficult to artificially promptly and accurately judge when landwaste returns output minor variations; 2. gas injection pressure mutation analysis method solves needs certain assumed condition, and theoretical property is comparatively strong, is unfavorable for on-the-spot application; 3. whether sediment outflow pipe load-bearing monitor analytic approach is returned out normal by landwaste and sediment outflow pipeline interaction force indirect analysis landwaste amount, and affect disturbing factor many, monitoring result is influenced.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and landwaste returns out monitoring while drilling in gas drilling gas drilling landwaste can return out monitoring system.
Therefore, technical scheme of the present invention is as follows:
A kind of gas drilling landwaste returns out monitoring system, comprising:
Solid flowmeter, is arranged on sediment outflow pipeline, described sediment outflow pipeline discharges the flow of landwaste for monitoring and is sent to processor;
Winch transmitter, is connected to the winch on gas drilling, for monitoring the angular displacement of described winch and being sent to described processor;
Described processor, be connected to described solid flowmeter and described winch transmitter, for contrasting the landwaste flow received and winch angular displacement, the landwaste discharge capacity corresponding according to unit angular displacement judges whether the numerical value of landwaste flow matches with winch angular displacement.
In this technical scheme, directly monitored by solid flow sensor (i.e. solid flowmeter) and return out landwaste amount, and contrast with the landwaste amount that drill bit unit drilling depth (utilizing winch angular displacement to calculate) produces, judge whether landwaste returns out normal, real time data can be provided for drilling well abnormity early warning, avoid the generation of down-hole accident, realize safety drilling and produce.
Described gas drilling landwaste returns out monitoring system and also comprises alarming apparatus, be connected to described processor, alarm signal is sent to described alarming apparatus when described processor is also for being no in judged result, described alarming apparatus gives the alarm when receiving alarm signal, facilitates the timely handling failure of staff.
Described solid flow counts microwave remote sensor, microwave remote sensor constantly launches low-yield microwave signal in pipeline, energy is by the cutting grain scattering of flowing and received by sensor, according to doppler principle, in frequency, have frequency difference by the echo of the reflections off objects of movement and transmitted wave, this frequency difference is directly proportional to the flow velocity of landwaste, therefore can measure the flow velocity of landwaste, the microwave energy reflected by mobile landwaste can measure the density of landwaste, thus measures landwaste flow.
The turning cylinder that described winch transmitter can be arranged on the air guide cock tap of winch drum is monitored the angular displacement of winch.
Specifically, described processor comprises winch transmitter modulate circuit, solid flow monitoring modulate circuit, sampling/retainer, multiway analog switch, A/D converter, logic controller and, host computer, described winch transmitter is become by described winch successively and send, device modulate circuit, described sampling/retainer, described multiway analog switch, described A/D converter is connected to described host computer, and described solid flowmeter is successively by described solid flow monitoring modulate circuit, described sampling/retainer, described multiway analog switch, described A/D converter is connected to described host computer, and described winch transmitter modulate circuit is used for amplifying the signal received from described winch transmitter, filtering and electrical isolation, described solid flow monitoring modulate circuit is used for amplifying the signal received from described solid flowmeter, filtering and electrical isolation, described host computer is also connected to described sampling/retainer by described logic control circuit, described multiway analog switch and described A/D converter.
Present invention also offers a kind of gas drilling landwaste and return out monitoring method, comprising:
Monitoring sediment outflow pipeline is discharged the flow of landwaste;
The angular displacement of winch in the drilling well of monitoring body;
Contrast the landwaste flow received and winch angular displacement, the landwaste discharge capacity corresponding according to unit angular displacement judges whether the numerical value of landwaste flow matches with winch angular displacement.
In this technical scheme, landwaste amount is returned out by directly monitoring, and contrast with the landwaste amount that drill bit unit drilling depth (utilizing winch angular displacement to calculate) produces, judge whether landwaste returns out normal, real time data can be provided for drilling well abnormity early warning, avoid the generation of down-hole accident, realize safety drilling and produce.
Further, described gas drilling landwaste returns out monitoring method and is also included in when judged result is no and gives the alarm.
Accompanying drawing explanation
Fig. 1 is the schematic diagram returning out monitoring system according to the gas drilling landwaste of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in Figure 1, gas drilling landwaste returns out monitoring system according to an embodiment of the invention, comprising:
Solid flowmeter 4, is arranged on sediment outflow pipeline 5, for monitoring the flow of described sediment outflow pipeline 5 being discharged landwaste and being sent to processor 2;
Winch transmitter 3, is connected to the winch on gas drilling, for monitoring the angular displacement of described winch and being sent to described processor 2;
Described processor 2, be connected to described solid flowmeter 4 and described winch transmitter 3, for contrasting the landwaste flow received and winch angular displacement, the landwaste discharge capacity corresponding according to unit angular displacement judges whether the numerical value of landwaste flow matches with winch angular displacement.
Wherein, if sediment outflow pipeline 5 is provided with device for reducing dust, before solid flowmeter 4 should being arranged on device for reducing dust 6, as shown in fig. 1,7 is sediment outflow hole.
In this technical scheme, directly monitored by solid flow sensor (i.e. solid flowmeter 4) and return out landwaste amount, and contrast with the landwaste amount that drill bit unit drilling depth (utilizing winch angular displacement to calculate) produces, judge whether landwaste returns out normal, real time data can be provided for drilling well abnormity early warning, avoid the generation of down-hole accident, realize safety drilling and produce.
In general, except fracture development stratum, drill bit creeps into unit stratum, and to return out landwaste amount be certain, the rate of penetration of being monitored by engineering logging and lagged time etc., the landwaste amount that footage per bit in the sampling period produces can be calculated, the actual ratio returning output (volume) of drill bit unit drilling depth fragmented rock amount (volume) and landwaste in theory can be taked, whether judge the formation of cutting bed.If every meter of actual landwaste amount returned out is far smaller than every meter of fragmented rock amount in theory, just illustrate that circulatory mediator takes rock not smooth, the blocking such as cave-in, sand setting bit freezing mineshaft annulus passage likely occurs.
Described gas drilling landwaste returns out monitoring system and also comprises alarming apparatus 8, be connected to described processor 2, alarm signal is sent to described alarming apparatus 8 when described processor 2 is also for being no in judged result, described alarming apparatus 8 gives the alarm when receiving alarm signal, facilitates the timely handling failure of staff.
Described solid flowmeter 4 is microwave remote sensor, microwave remote sensor constantly launches low-yield microwave signal in pipeline, energy is by the cutting grain scattering of flowing and received by sensor, according to doppler principle, in frequency, have frequency difference by the echo of the reflections off objects of movement and transmitted wave, this frequency difference is directly proportional to the flow velocity of landwaste, therefore can measure the flow velocity of landwaste, the microwave energy reflected by mobile landwaste can measure the density of landwaste, thus measures landwaste flow.
The turning cylinder that described winch transmitter 3 can be arranged on the air guide cock tap of winch drum is monitored the angular displacement of winch.
Specifically, described processor 2 comprises winch transmitter modulate circuit 24, solid flow monitoring modulate circuit 25, sampling/retainer 23, multiway analog switch 22, A/D converter 21, logic controller 26 He, host computer 1, described winch transmitter 3 is sent by described winch change successively, device modulate circuit 24, described sampling/retainer 23, described multiway analog switch 22, described A/D converter 21 is connected to described host computer 1, and described solid flowmeter 4 is successively by described solid flow monitoring modulate circuit 25, described sampling/retainer 23, described multiway analog switch 22, described A/D converter 21 is connected to described host computer 1, and described winch transmitter modulate circuit 24 is for amplifying the signal received from described winch transmitter 3, filtering and electrical isolation, described solid flow monitoring modulate circuit 25 is for amplifying the signal received from described solid flowmeter 4, filtering and electrical isolation, described host computer 1 is also connected to described sampling/retainer 23 by described logic control circuit 26, described multiway analog switch 22 and described A/D converter 21.
Present invention also offers a kind of gas drilling landwaste and return out monitoring method, comprising:
Monitoring sediment outflow pipeline is discharged the flow of landwaste;
The angular displacement of winch in the drilling well of monitoring body;
Contrast the landwaste flow received and winch angular displacement, the landwaste discharge capacity corresponding according to unit angular displacement judges whether the numerical value of landwaste flow matches with winch angular displacement.
In this technical scheme, landwaste amount is returned out by directly monitoring, and contrast with the landwaste amount that drill bit unit drilling depth (utilizing winch angular displacement to calculate) produces, judge whether landwaste returns out normal, real time data can be provided for drilling well abnormity early warning, avoid the generation of down-hole accident, realize safety drilling and produce.
Further, described gas drilling landwaste returns out monitoring method and is also included in when judged result is no and gives the alarm.
In a kind of specific embodiment of the present invention, the method utilizing described gas drilling landwaste to return out monitoring system to carry out monitoring, can comprise the steps:
1) winch transmitter 3 is arranged on the turning cylinder of air guide cock tap of winch drum; Solid flowmeter 4 is arranged on the sediment outflow pipeline 5 before device for reducing dust 6, connects each equipment and initialization system;
2) footage per bit data gather: monitor winch angular displacement by winch transmitter 3 and be converted to the signal of telecommunication, utilize the process such as winch transmitter modulate circuit 41 pairs of signals of telecommunication amplify, filtering, electrical isolation, host computer 1 controls the 21 pairs of signal of telecommunication samplings of multiway analog switch 23, sampling/retainer 22 and A/D converter, analog-to-digital conversion by logic controller 26, and is input in the database of host computer 1;
3) landwaste returns outflow data acquisition: return output by solid flowmeter 4 landwaste of monitoring in sediment outflow pipeline 5 and be converted to the signal of telecommunication, utilize the process such as solid flow monitoring modulate circuit 25 pairs of signals of telecommunication amplify, filtering, electrical isolation, host computer 1 controls the 21 pairs of signal of telecommunication samplings of multiway analog switch 23, sampling/retainer 22 and A/D converter, analog-to-digital conversion by logic controller 26, and is input in the database of host computer 1;
4) landwaste returns out monitoring and warning: host computer 1 pair of step 2) and step 3) image data carry out real-time operation, analysis, judge that landwaste returns out whether normal, and display early warning carried out to result.
In sum, content of the present invention is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present invention, but this embodiment all comprises within the scope of the present invention.
Claims (7)
1. gas drilling landwaste returns out a monitoring system, it is characterized in that, comprising:
Solid flowmeter (4), is arranged on sediment outflow pipeline (5), and for monitoring, described sediment outflow pipeline (5) is upper to be discharged the flow of landwaste and be sent to processor (2);
Winch transmitter (3), is connected to the winch on gas drilling, for monitoring the angular displacement of described winch and being sent to described processor (2);
Described processor (2), be connected to described solid flowmeter (4) and described winch transmitter (3), for contrasting the landwaste flow received and winch angular displacement, the landwaste discharge capacity corresponding according to unit angular displacement judges whether the numerical value of landwaste flow matches with winch angular displacement.
2. gas drilling landwaste according to claim 1 returns out monitoring system, it is characterized in that, also comprise alarming apparatus (8), be connected to described processor (2), send alarm signal to described alarming apparatus (8) when described processor (2) is also for being no in judged result, described alarming apparatus (8) gives the alarm when receiving alarm signal.
3. gas drilling landwaste according to claim 1 returns out monitoring system, it is characterized in that, described solid flowmeter (4) is microwave remote sensor.
4. gas drilling landwaste according to claim 1 returns out monitoring system, it is characterized in that, described winch transmitter (3) is arranged on the turning cylinder of the air guide cock tap of winch drum.
5. gas drilling landwaste according to any one of claim 1 to 4 returns out monitoring system, it is characterized in that, described processor (2) comprises winch transmitter modulate circuit (24), solid flow monitoring modulate circuit (25), sampling/retainer (23), multiway analog switch (22), A/D converter (21), logic controller (26) and host computer (1), described winch transmitter (3) is successively by described winch transmitter modulate circuit (24), described sampling/retainer (23), described multiway analog switch (22), described A/D converter (21) is connected to described host computer (1), described solid flowmeter (4) is successively by described solid flow monitoring modulate circuit (25), described sampling/retainer (23), described multiway analog switch (22), described A/D converter (21) is connected to described host computer (1), described winch transmitter modulate circuit (24) is for amplifying the signal received from described winch transmitter (3), filtering and electrical isolation, described solid flow monitoring modulate circuit (25) is for amplifying the signal received from described solid flowmeter (4), filtering and electrical isolation, described host computer (1) is also connected to described sampling/retainer (23) by described logic control circuit (26), described multiway analog switch (22) and described A/D converter (21).
6. gas drilling landwaste returns out a monitoring method, it is characterized in that, comprising:
Monitoring sediment outflow pipeline is discharged the flow of landwaste;
The angular displacement of winch in the drilling well of monitoring body;
Contrast the landwaste flow received and winch angular displacement, the landwaste discharge capacity corresponding according to unit angular displacement judges whether the numerical value of landwaste flow matches with winch angular displacement.
7. gas drilling landwaste according to claim 6 returns out monitoring method, it is characterized in that, is also included in when judged result is no and gives the alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078095.3A CN104675382A (en) | 2015-02-13 | 2015-02-13 | Rock debris return monitoring system and method during gas drilling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510078095.3A CN104675382A (en) | 2015-02-13 | 2015-02-13 | Rock debris return monitoring system and method during gas drilling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543599A (en) * | 2017-09-26 | 2018-01-05 | 杭州电子科技大学 | A kind of multi-groove type landwaste discharge measuring device and its measuring method |
| CN110067551A (en) * | 2019-02-18 | 2019-07-30 | 中国石油集团长城钻探工程有限公司录井公司 | A kind of wellbore cleannes and borehole wall stability quantification method of real-time |
| CN113073960A (en) * | 2021-04-16 | 2021-07-06 | 西南石油大学 | Method for preventing underground explosion in non-reservoir air drilling |
| CN115542337A (en) * | 2022-11-28 | 2022-12-30 | 成都维泰油气能源技术有限公司 | Drilling return rock debris monitoring method and device and storage medium |
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| CN115542337A (en) * | 2022-11-28 | 2022-12-30 | 成都维泰油气能源技术有限公司 | Drilling return rock debris monitoring method and device and storage medium |
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