CN109057779A - A kind of mud leakage quantity measuring method - Google Patents
A kind of mud leakage quantity measuring method Download PDFInfo
- Publication number
- CN109057779A CN109057779A CN201810904164.5A CN201810904164A CN109057779A CN 109057779 A CN109057779 A CN 109057779A CN 201810904164 A CN201810904164 A CN 201810904164A CN 109057779 A CN109057779 A CN 109057779A
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- China
- Prior art keywords
- instruction
- mud
- processing unit
- central processing
- flow
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/117—Detecting leaks, e.g. from tubing, by pressure testing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Abstract
The invention discloses a kind of mud to leak quantity measuring method, comprising the following steps: (1) central processing unit sends data acquisition instructions to device for pressure measurement and flow measurement device；(2) pressure signal acquired in real time and mud vent flow are transmitted to WiFi module by device for pressure measurement and flow measurement device；(3) signal data received is transmitted to central processing unit by WiFi module, and central processing unit carries out analysis judgment, and judging result is fed back to and passes system under instruction；(4) a. obtains drilling engineering parameter sampled data；Whether the sampled data for b. judging the current time is more than default bound threshold range；C. whether the sampled data at n moment is abnormal before judging；D, judge whether the number of abnormal sample data in current time and preceding m moment reaches k.The present invention can meet actual operation requirements, can determine whether drilling engineering parameter is abnormal, good reliability.
Description
Technical field
The present invention relates to drilling technology field, specifically a kind of mud leaks quantity measuring method.
Background technique
Petroleum is indispensable important energy source in economic development, it has great shadow to national economy and people's lives
It rings.Oil exploration & development is a complicated operation, and wherein drilling well is then the important link of petroleum exploration and development.It is crept into drilling well
When, since drill bit is in underground job, it can not directly observe its working condition.And subterranean strata and other earth formations are complicated, deposit
In different rock stratum, gas-bearing formation and liquid layer.The Parameters variation in drilling process is only known about, can be come according to Parameters variation true
Fixed reasonable drilling engineering parameter, to grasp and control the safety of drilling process.
With the continuous progress of technology, rotary steerable drilling system obtains increasingly wider in oil and gas well drilling operation
General application.Rotary steerable drilling system is typical closed-loop control system, mainly pass through survey, the function of passing, lead guidance and
Control drill bit pierces the set goal stratum.Wherein, instruction down pass System Take surface instruction is sent to downwards shaft bottom rotation
The effect for turning steering tool is that rotary steerable drilling system realizes the indispensable component part of closed-loop control.Currently, state's outward turning
It is to pass through utilization mostly that the instruction for turning steering drilling system, which passes down system and the domestic rotary steerable drilling system studied,
The mud-pulse of generation, realizes transmission of the surface instruction to downhole tool when ground carries out aerial drainage in face of mud.This mode due to
The practical vent flow of mud is not detected, therefore cannot judge whether practical vent flow reaches requirement, cannot be field operation
Effective reference is provided, reliability is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of mud to leak quantity measuring method, mentioned above in the background art to solve
Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of mud leakage quantity measuring method, comprising the following steps:
(1) central processing unit of terminal subsystem is periodically surveyed by WiFi module to pressure according to preset sample frequency
It measures device and flow measurement device sends data acquisition instructions；
(2) after device for pressure measurement and flow measurement device receive data acquisition instructions, the pressure signal that will acquire in real time respectively
The WiFi module of terminal subsystem is transmitted to by bus with mud vent flow；
(3) signal data received is transmitted to central processing unit by bus by WiFi module, and central processing unit is according to receiving
Pressure signal and mud vent flow carry out analysis judgment, and by judging result feed back to instruction under pass system；
(4) a. obtains drilling engineering parameter in the sampled data at current time；B. central processing unit judges the current time
Whether sampled data is more than default bound threshold range, if it is, judging that the sampled data at the current time is abnormal, is held
Otherwise row step c judges that the sampled data at the current time is normal, execute step d；When c. n before central processing unit judgement
Whether the sampled data at quarter is abnormal, if it is, judge that the drilling engineering parameter is abnormal, it is no to then follow the steps d；D, center
Processor judges whether the number of abnormal sample data in current time and preceding m moment reaches k, if it is, judging institute
Drilling engineering parameter exception is stated, otherwise judges that the drilling engineering parameter is normal；Wherein, m, k, n are positive integer, and m > k > n.
As a further solution of the present invention: 1) analysis judgment of central processing unit is the following steps are included: saving and passing through
Terminal device shows the pressure signal received and mud vent flow；2) letting out for ground discharge device is calculated according to mud vent flow
Ratio is flowed, it is compared with preset reasonable aerial drainage than range: if aerial drainage ratio does not fall within reasonable aerial drainage than in range,
System is passed under notification instruction issues corresponding flow control instruction；Aerial drainage ratio=(vent flow/normal circulation flow) × 100%；
Wherein, normal circulation flow is mud flow rate when rotary steerable tool works normally in mud major cycle pipeline, normal circulation
Flow can be directly obtained by the running parameter of live slush pump；3) rising edge and failing edge in pressure signal, meter are identified
Calculate the time difference between rising edge and failing edge, by these time differences respectively with time range corresponding to predetermined instruction
It is compared: if the time difference falls in the corresponding time range of an instruction, explaining corresponding instruction, and further judge
Whether the instruction is consistent with expected instruction.
As a further solution of the present invention: decision instruction whether with the consistent method of expecting instruction are as follows: 1. if this refers to
It enables with expected instruction unanimously, then shows that instruction is sent successfully；2. showing to instruct if the instruction is not inconsistent with expected instruction
Mistake is sent, system is passed under notification instruction and retransmits instruction；If the time difference does not instruct in corresponding time range any,
Then show that instruction sends mistake, system is passed under notification instruction and retransmits instruction.
Compared with prior art, the beneficial effects of the present invention are:
Mud leakage quantity measuring method of the invention, which can ensure to instruct, passes down system by vent flow control in reasonable range,
Meet real work needs；The standpipe pressure of ground discharge device is examined in real time due to being provided with a pressure measuring module
Survey, by time range corresponding to time difference between the rising edge and failing edge of pressure signal and pre-determined instruction into
Row comparison, parses and whether decision instruction sends success, therefore can provide reference frame to instruct successfully to pass down, thus effectively
Ground improves the accuracy and reliability that instruction passes down system；It can be from continuous abnormal sampled data and discrete anomaly hits
Judge whether drilling engineering parameter is abnormal according to two aspects, guarantees the real-time and accuracy of judging result.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Referring to Fig. 1, a kind of mud leaks quantity measuring method, comprising the following steps:
(1) central processing unit of terminal subsystem is periodically surveyed by WiFi module to pressure according to preset sample frequency
It measures device and flow measurement device sends data acquisition instructions；
(2) after device for pressure measurement and flow measurement device receive data acquisition instructions, the pressure signal that will acquire in real time respectively
The WiFi module of terminal subsystem is transmitted to by bus with mud vent flow；
(3) signal data received is transmitted to central processing unit by bus by WiFi module, and central processing unit is according to receiving
Pressure signal and mud vent flow carry out analysis judgment, and by judging result feed back to instruction under pass system；
1) analysis judgment of central processing unit is the following steps are included: saving and showing the pressure signal received by terminal device
With mud vent flow；2) the aerial drainage ratio that ground discharge device is calculated according to mud vent flow, it is rationally let out with preset
Stream is compared than range: being issued accordingly if aerial drainage ratio does not fall within reasonable aerial drainage than in range, passing system under notification instruction
Flow control instruction；Aerial drainage ratio=(vent flow/normal circulation flow) × 100%；Wherein, normal circulation flow is rotary steering
Mud flow rate when tool works normally in mud major cycle pipeline, normal circulation flow can pass through the work of live slush pump
Parameter directly obtains；3) rising edge and failing edge in pressure signal are identified, the time difference between rising edge and failing edge is calculated,
These time differences are compared with time range corresponding to predetermined instruction respectively: if the time difference falls in an instruction
In corresponding time range, then corresponding instruction is explained, and further judge whether the instruction is consistent with expected instruction: 1.
If the instruction and expected instruction are consistent, show that instruction is sent successfully；2. if the instruction is not inconsistent with expected instruction,
Show that instruction sends mistake, system is passed under notification instruction and retransmits instruction；If the time difference is not when any instruction is corresponding
Between in range, then show that instruction sends mistake, system passed under notification instruction and retransmits instruction；
(4) a. obtains drilling engineering parameter (such as turntable torque) in the sampled data at current time；B. central processing unit judges
Whether the sampled data at the current time is more than default bound threshold range, if it is, judging the current time
Sampled data is abnormal, executes step c, otherwise judges that the sampled data at the current time is normal, executes step d；C. centre
Whether the sampled data for managing the n moment before device judges is abnormal, if it is, judging that the drilling engineering parameter is abnormal, otherwise
Execute step d；D, central processing unit judges whether the number of abnormal sample data in current time and preceding m moment reaches k,
If it is, judging that the drilling engineering parameter is abnormal, otherwise judge that the drilling engineering parameter is normal；Wherein, m, k, n are
Positive integer, and m > k > n.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (3)
1. a kind of mud leaks quantity measuring method, which comprises the following steps:
(1) central processing unit of terminal subsystem is periodically surveyed by WiFi module to pressure according to preset sample frequency
It measures device and flow measurement device sends data acquisition instructions；
(2) after device for pressure measurement and flow measurement device receive data acquisition instructions, the pressure signal that will acquire in real time respectively
The WiFi module of terminal subsystem is transmitted to by bus with mud vent flow；
(3) signal data received is transmitted to central processing unit by bus by WiFi module, and central processing unit is according to receiving
Pressure signal and mud vent flow carry out analysis judgment, and by judging result feed back to instruction under pass system；
(4) a. obtains drilling engineering parameter in the sampled data at current time；B. central processing unit judges the current time
Whether sampled data is more than default bound threshold range, if it is, judging that the sampled data at the current time is abnormal, is held
Otherwise row step c judges that the sampled data at the current time is normal, execute step d；When c. n before central processing unit judgement
Whether the sampled data at quarter is abnormal, if it is, judge that the drilling engineering parameter is abnormal, it is no to then follow the steps d；D, center
Processor judges whether the number of abnormal sample data in current time and preceding m moment reaches k, if it is, judging institute
Drilling engineering parameter exception is stated, otherwise judges that the drilling engineering parameter is normal；Wherein, m, k, n are positive integer, and m > k > n.
2. mud according to claim 1 leaks quantity measuring method, which is characterized in that the analysis judgment packet of central processing unit
It includes following steps: 1) saving and show the pressure signal received and mud vent flow by terminal device；2) it is let out according to mud
It is compared with preset reasonable aerial drainage than range: if aerial drainage by the aerial drainage ratio of flow rate calculation ground discharge device
Corresponding flow control instruction is issued than in range, passing system under notification instruction than not falling within reasonable aerial drainage；Aerial drainage ratio=(aerial drainage
Amount/normal circulation flow) × 100%；Wherein, normal circulation flow is mud main circulation pipe when rotary steerable tool works normally
Mud flow rate in road, normal circulation flow can be directly obtained by the running parameter of live slush pump；3) identification pressure letter
Rising edge and failing edge in number calculate the time difference between rising edge and failing edge, respectively and in advance really by these time differences
Time range corresponding to fixed instruction is compared: if the time difference falls in the corresponding time range of an instruction, being explained
Corresponding instruction out, and further judge whether the instruction is consistent with expected instruction.
3. mud according to claim 2 leaks quantity measuring method, which is characterized in that decision instruction whether with expecting instruction
Consistent method are as follows: 1. if the instruction and expected instruction are consistent, show that instruction is sent successfully；2. if the instruction and pre-
The instruction of phase is not inconsistent, then shows that instruction sends mistake, system is passed under notification instruction and retransmits instruction；If the time difference is not in office
In what corresponding time range of instruction, then shows that instruction sends mistake, system is passed under notification instruction and retransmits instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904164.5A CN109057779A (en) | 2018-08-09 | 2018-08-09 | A kind of mud leakage quantity measuring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904164.5A CN109057779A (en) | 2018-08-09 | 2018-08-09 | A kind of mud leakage quantity measuring method |
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| CN109057779A true CN109057779A (en) | 2018-12-21 |
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| CN201810904164.5A Pending CN109057779A (en) | 2018-08-09 | 2018-08-09 | A kind of mud leakage quantity measuring method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751004A (en) * | 2019-03-27 | 2019-05-14 | 中国海洋石油集团有限公司 | A kind of underground control pipeline plugging technology and system |
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| WO2006105033A1 (en) * | 2005-03-29 | 2006-10-05 | Baker Hughes Incorporated | Method and apparatus for downlink communication |
| CN202549053U (en) * | 2012-03-28 | 2012-11-21 | 中国海洋石油总公司 | Ground monitoring system for drilling instruction downloading system |
| CN105221132A (en) * | 2014-06-30 | 2016-01-06 | 中国石油化工股份有限公司 | A kind of drilling engineering parameter condition detection method |
| CN107989595A (en) * | 2017-12-11 | 2018-05-04 | 新疆贝肯能源工程股份有限公司 | It is programmable to automatically control downgoing communication device and downlink signal transmission |
| CN207701122U (en) * | 2017-12-11 | 2018-08-07 | 新疆贝肯能源工程股份有限公司 | It is programmable to automatically control downgoing communication device |
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2018
- 2018-08-09 CN CN201810904164.5A patent/CN109057779A/en active Pending
Patent Citations (5)
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| WO2006105033A1 (en) * | 2005-03-29 | 2006-10-05 | Baker Hughes Incorporated | Method and apparatus for downlink communication |
| CN202549053U (en) * | 2012-03-28 | 2012-11-21 | 中国海洋石油总公司 | Ground monitoring system for drilling instruction downloading system |
| CN105221132A (en) * | 2014-06-30 | 2016-01-06 | 中国石油化工股份有限公司 | A kind of drilling engineering parameter condition detection method |
| CN107989595A (en) * | 2017-12-11 | 2018-05-04 | 新疆贝肯能源工程股份有限公司 | It is programmable to automatically control downgoing communication device and downlink signal transmission |
| CN207701122U (en) * | 2017-12-11 | 2018-08-07 | 新疆贝肯能源工程股份有限公司 | It is programmable to automatically control downgoing communication device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751004A (en) * | 2019-03-27 | 2019-05-14 | 中国海洋石油集团有限公司 | A kind of underground control pipeline plugging technology and system |
| CN109751004B (en) * | 2019-03-27 | 2022-01-11 | 中国海洋石油集团有限公司 | Underground control pipeline plugging process and system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 257045 No. two, 271 North Road, Shandong, Dongying Applicant after: China University of Petroleum (East China) Address before: 510000, science Avenue, Luogang District Science City, Guangdong, 181, A4, ninth to 11, Guangzhou Applicant before: China University of Petroleum (East China) |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |
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| RJ01 | Rejection of invention patent application after publication |