CN101235716B - Prealarming method and method for avoiding oil gas well drilling neighbouring wellbore collision - Google Patents
Prealarming method and method for avoiding oil gas well drilling neighbouring wellbore collision Download PDFInfo
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- CN101235716B CN101235716B CN2008101008359A CN200810100835A CN101235716B CN 101235716 B CN101235716 B CN 101235716B CN 2008101008359 A CN2008101008359 A CN 2008101008359A CN 200810100835 A CN200810100835 A CN 200810100835A CN 101235716 B CN101235716 B CN 101235716B
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Abstract
The invention relates to an early warning method and a method for avoiding adjacent well bores of oil-gas well drilling from colliding, the early warning method of the invention main comprises the following steps: firstly, respectively mounting acceleration sensors on a positive well drilling and adjacent well cannulas which are possible to collide, secondly, processing vibrating signals which are induced by various acceleration sensors, and sending to a synchronous data gathering instrument, thirdly, leading the synchronous data gathering instrument to synchronously adopt vibrating data of various speed sensors in real time, and sending to a computer, fourthly, analyzing whether the analysis and judgment of a software to vibrating data has well pores colliding danger or not through vibrating data which is embedded by a computer, fifthly starting an alarming system according to the analyzing and judging results. The method can finally judge out that which adjacent well pore has a collided danger, and can alarm in time, thereby effectively lowering a danger of drilling through an adjacent well cannula. The method can be widely applied in various oil-gas well drilling processes.
Description
Technical field
The present invention relates to a kind of anti-collision warning method and system, particularly about a kind of method for early warning and system that avoids the collision of oil gas well drilling neighbouring well.
Background technology
Along with the increase of oil-gas field development to adjustment well drilling well demand, infill well anti-collision problem becomes increasingly conspicuous.Under some situation, the anti-collision problem has restricted bores carrying out smoothly of completion practice.If in the drilling process, do not have in time to find drill bit near or got into the pit shaft of offset well, the possibility that drills the offset well sleeve pipe within a short period of time is just arranged, thereby causes very big and even great economic loss.Present operable anti-collision monitoring technology mainly contains two types.One type is to rely on downhole electromagnetic to measure, through surveying the distance that influence judgement and offset well of offset well sleeve pipe to electromagnetic field.This Technology Need carries out the electric logging operation under the condition that stops offset well production, not only influenced and produced but also expensive.Second type is to monitor through manual work, according to the anti-collision experience in the drilling well reality, is bumped casing during drilling collision and will produce vibration and be delivered to ground, adopts the artificial method of monitoring can judge whether to take place drilling collision.Adopt this method to receive the experience and the sense of responsibility influence of operating condition, operating environment and listener, actual enforcement difficulty is very big, can not realize effective continuous monitoring.
Summary of the invention
To the problems referred to above; The purpose of this invention is to provide and prevent to get into the offset well sleeve pipe in a kind of oil/gas drilling process and cause borehole failure; Do not receive the influence of operating condition and operating environment, can realize the method for early warning and the system that avoid the collision of oil gas well drilling neighbouring well of effective continuous monitoring.
Be to realize above-mentioned purpose, the present invention takes following technical scheme: a kind of method for early warning of avoiding the collision of oil gas well drilling neighbouring well, and it may further comprise the steps: acceleration transducer is installed respectively in (1) on positive drilling well and the offset well sleeve pipe that possibly bump; (2) each acceleration transducer vibrations induced signal is handled, and sent to the synchronous data collection appearance; (3) the synchronous data collection appearance in real time, the vibration data of each acceleration transducer of synchronous acquisition, and send to computer; (4) the vibration data analysis software that embeds through computer carries out analysis and judgement to vibration data and whether has the well risk of collision; (5), start warning system according to the analysis and judgement result.
Wherein in the step (3) vibration signal of each sensor sensing handled and comprise and adopt charge amplifier that signal is carried out filtering and amplification.
Wherein the analysis and judgement process of vibration data analysis software comprises in the step (4): 1. channel selecting; The offset well quantity of confirm to need measuring judges whether it is the vibration that positive drilling bit impact causes according to the uniformity of frequency, wavelength and the amplitude of vibration with similarity; 2. confirm the record length of each data file, the sampling rate of data, reporting to the police is provided with the storage setting; 3. log-on data collection is carried out small echo classification Filtering Processing with the data signal of being gathered, and the image data through Filtering Processing is carried out phase analysis, kicksort, spectrum analysis and energy spectrometer, judges and find out the convergence relation of positive drilling well and each offset well; 4. store data, and judge whether the needs warning, the limit of regulation is set if testing result has exceeded to report to the police according to the setting of reporting to the police, output alarm information, if testing result is normal, will be through display output trend prediction.
A kind of early warning system of avoiding the collision of oil gas well drilling neighbouring well that realizes said method; It is characterized in that: it comprises the acceleration transducer on the sleeve pipe that is installed in a positive drilling well and some offset wells respectively; The charge amplifier that each said acceleration transducer has the bandpass filtering function through lead connection one respectively; Said charge amplifier is connected with a synchrodata Acquisition Instrument through lead, and said synchronous data collection appearance connects a computer.
Said synchronous data collection appearance is connected through cable with said computer.
Said synchronous data collection appearance is connected a WAP through a lead respectively with computer, and each WAP is respectively arranged with an antenna, and said synchronous data collection appearance is connected through wireless communication signal with said computer.
Acceleration transducer on the said offset well sleeve pipe is divided into two groups or more; Each is organized said acceleration transducer and connects a synchrodata Acquisition Instrument through a said charge amplifier respectively; Each said synchronous data collection appearance is connected a WAP through a lead respectively with said computer; Each said WAP is provided with an antenna respectively, and each said synchronous data collection appearance is connected through wireless communication signal with said computer respectively.
The present invention is owing to take above technical scheme; It has the following advantages: 1, the inventive method causes the physical characteristic of rock, cement sheath and the cover tube vibration near the stratum of pit shaft according to the ballistic motion meeting of just construct drill bit and instrument; Utilization is arranged on positive drilling well and has by the acceleration transducer on the offset well sleeve pipe of risk of collision collects vibration signal; Gather this vibration data synchronously, in real time by the synchronous data collection appearance; And be transferred to computer, and through the vibration data analysis and judgement software in the embeded computer system it carrying out analytical calculation, which offset well final decision goes out has the risk of being collided; And in time report to the police, thereby reduced the risk that drills the offset well sleeve pipe effectively.2, apparatus of the present invention are arranged on equipment such as acceleration transducer on each sleeve pipe, synchronous data collection appearance, computer and can buy off-the-shelf, and not only simple in structure, cost is low, installs and uses all very convenient.3, computer software of the present invention is to carry out each item analysis and judgement according to the physical characteristic that conventional vibration is propagated, so technology maturation, and accuracy is high, uses fool proof reliable.4, do not receive the influence of operating condition and operating environment in the operating process of the present invention, need not to stop offset well production, can realize effectively real-time, synchronous, continuous monitoring.5, the present invention can realize that not only single platform detects, and can pass through wireless transmission method, utilizes two platforms of a computer realization or multi-platform detection.The present invention can be widely used in the various oil/gas drilling processes.
Description of drawings
Fig. 1 is the single platform structure sketch map of the present invention
Fig. 2 is a well early warning distance prediction principle sketch map of the present invention
Fig. 3 is a vibration data analysis software flow chart of the present invention
Fig. 4 is two platform structure sketch mapes of wireless telecommunications of the present invention
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is carried out detailed description.
Actions such as the rotation of downhole tool such as drill bit or down-hole percussion tool, impact, the jumping of cutting, sprain all can cause the impact shock of rock on every side; This vibration meeting is propagated in stratum and sleeve pipe; The technical scheme that adopts the present invention to propose; Can detect these signals, and carry out analysis and judgement according to these signals.
The title definition:
1, positive drilling well-the carrying out well of wellbore construction.
The existence of 2, having completed around offset well-positive drilling well is by the drilling well of drill bit risk of collision.
3, sleeve pipe-comprise ordinary casing, riser pipe, or other steel pit shaft etc., for narration conveniently is commonly referred to as sleeve pipe.
Embodiment one
As shown in Figure 1; Present embodiment is single platform collision warning systems; The present invention (is an example with three offset wells only in positive drilling well 1 with offset well 2,3,4; But be not limited thereto) sleeve pipe 11,21,31,41 on an acceleration transducer 12,22,32,42 is set respectively, can obtain the physical features such as vibration frequency, wavelength and amplitude of each sleeve pipe through each acceleration transducer 12,22,32,42.Each acceleration transducer 12,22,32,42 is connected the input of a charge amplifier 5 respectively through a lead, charge amplifier 5 has the bandpass filtering function.The output of charge amplifier 5 is connected with a synchrodata Acquisition Instrument 6 through lead, and synchronous data collection appearance 6 is connected with a computer 7 through lead.
Specific density is big mutually with near rock, cement sheath etc. owing to sleeve pipe 11,21,31,41; More help vibrating wave propagation; Therefore when the drill bit of positive drilling well 1 normally creeps into; 12 vibrations induced characteristics of acceleration transducer on vibration performance that acceleration transducer 22,32,42 is sensed on offset well 2,3,4 sleeve pipes and positive drilling well 1 sleeve pipe have certain relation; And when drill bit during the closer to offset well 2,3,4, the vibration performance that is sent on the offset well sleeve pipe 21,31,41 through rock and cement sheath can significantly be strengthened by the influence degree of 12 the vibrations induced characteristics of acceleration transducer on positive drilling well 1 sleeve pipe.
The inventive method is through being installed in acceleration transducer 12,22,32,42 and the synchronous data collection appearance 6 on each sleeve pipe 11,21,31,41; Detect in real time synchronously, because the vibration signal of each sleeve pipe 11,21,31,41 that drill bit impact causes; And give computer 7 with data delivery, through the vibration data analysis software that is installed in the computer vibration signal is carried out analysis and judgement.
Like Fig. 2, shown in Figure 3, the vibration data analysis software among the present invention comprises the analysis and judgement process of vibration signal:
1, channel selecting, definite offset well quantity that needs mensuration judges whether it is that positive drilling bit impacts the vibration that causes, its determination methods can be according to the uniformity and the similarity judgement of the frequency, wavelength and the amplitude that vibrate.
2, after confirming the vibration signal that positive drilling bit causes; Select to confirm the record length (being sampling length) of each data file, the number of data points (being sampling rate) that the unit interval gathers; Definition starts the threshold values (promptly report to the police and be provided with) of alarm signal, and the manual or automatic storage mode of data (i.e. storage is provided with) is set;
3, log-on data collection is carried out small echo classification Filtering Processing with the data signal of being gathered, and the image data through Filtering Processing is carried out phase analysis, kicksort, spectrum analysis and energy spectrometer, judges and find out the convergence relation of positive drilling well and each offset well;
4, carry out storage, judge and select result whether to transfinite, the storage of collected data are used in order to subsequent analysis; If result has exceeded to report to the police the limit of regulation is set; Output alarm instructs to audible-visual annunciator, if testing result is normal, software will be through display output trend prediction.
The detection principle of trend prediction of the present invention is according to time dependent curve 1 ' of positive drilling well 1 vibration signal and the time dependent curve 2 ' of certain offset well vibration signal; Draw the time difference S of positive drilling well and certain offset well vibration signal characteristics point through software analysis, calculate the relative distance between the point to be detected according to the spread speed of vibration wave in different medium again.
Embodiment two
Present embodiment is single platform collision warning systems (shown in Fig. 4 the first half) of wireless telecommunications; Its difference with embodiment 1 is: synchronous data collection appearance 6 is not to be connected computer 7 through lead; But connect a WAP 8 by synchronous data collection appearance 6; WAP 8 is provided with antenna 81, and computer 7 also connects another WAP 9 through other with lead, is connected with another antenna 91 on the WAP 9.Synchronous data collection appearance 6 and computer 7 are connected through wireless communication mode.
Embodiment three
Present embodiment is two platform collision warning systems (as shown in Figure 4) of wireless telecommunications; Around positive drilling well 1, remove the offset well 2,3,4 of need early warning; Also have four offset wells 101,102,103,104, present embodiment is as another early warning platform with these four offset wells 101,102,103,104.One acceleration transducer 121,122,123,124 is set respectively on the sleeve pipe 111,112,113,114 of offset well 101,102,103,104, can detects the vibration signal of each sleeve pipe 111,112,113,114 through each acceleration transducer 121,122,123,124.Each acceleration transducer 121,122,123,124 is also connected the input of a charge amplifier 5 ' respectively through a lead, charge amplifier 5 ' has the bandpass filtering function.The output of charge amplifier 5 ' is connected with another synchronous data collection appearance 6 ' through lead, and synchronous data collection appearance 6 ' is connected with other WAP 8 ' through lead, is connected with an antenna 81 ' on the WAP 8 '.Computer 7 is gathered the synchronized data signal that is sent by two WAPs 8 and 8 ' simultaneously through WAP 9 and antenna 91, realizes the wireless telecommunications of first platform, second platform and computer 7 data.
The present invention can realize the platform that cable connects for close together; Can implement single platform scheme; Far away for distance, connect limited well through cable; Can implement single platform of wireless telecommunications, two platform or multi-platform scheme, the multi-platform early warning system of the present invention can be with reference to two platform extension.
The inventive method utilization is installed in the acceleration transducer on the offset well sleeve pipe that possibly bump; The vibration signal of synchronous detecting offset well pit shaft, detection in real time possibly cause near rock, cement sheath or the cover tube vibration on the stratum pit shaft because of the ballistic motion of drill bit and instrument; Utilize the Acquisition Instrument collection by the detected signal of acceleration transducer; And be transferred to computer; Through the computer software in the embedded system, utilize classification filtering to signal, correlation computations, spectrum analysis etc. to analyze computational methods, vibration signal is carried out real-time analysis, processing; According to the position of the phase difference of different channel signals, spectral coverage energy variation analysis and judgement drill bit and collide tested wellbore casing maybe; When there is collided dangerous the measured point, in time send the sound and light alarm signal, warning device is reported to the police.
Claims (7)
1. method for early warning of avoiding oil gas well drilling neighbouring well collision, it may further comprise the steps:
(1) on positive drilling well and the offset well sleeve pipe that possibly bump, acceleration transducer is installed respectively;
(2) each acceleration transducer vibrations induced signal is handled, and sent to the synchronous data collection appearance;
(3) the synchronous data collection appearance in real time, the vibration data of each acceleration transducer of synchronous acquisition, and send to computer;
(4) the vibration data analysis software that embeds through computer carries out analysis and judgement to vibration data and whether has the well risk of collision, and wherein the analysis and judgement process of vibration data analysis software comprises:
1. channel selecting need to confirm the offset well quantity measured, judges whether it is the vibration that positive drilling bit impact causes according to the uniformity of frequency, wavelength and the amplitude of vibration with similarity;
2. confirm the record length of each data file, the sampling rate of data, reporting to the police is provided with the storage setting;
3. log-on data collection is carried out small echo classification Filtering Processing with the data signal of being gathered, and the image data through Filtering Processing is carried out phase analysis, kicksort, spectrum analysis and energy spectrometer, judges and find out the convergence relation of positive drilling well and each offset well;
4. store data, and judge whether the needs warning, the limit of regulation is set if testing result has exceeded to report to the police according to the setting of reporting to the police, output alarm information, if testing result is normal, will be through display output trend prediction;
(5), start warning system according to the analysis and judgement result.
2. a kind of method for early warning of avoiding oil gas well drilling neighbouring well collision as claimed in claim 1 is characterized in that: wherein in the step (2) vibration signal of each sensor sensing handled and comprise and adopt charge amplifier that signal is carried out filtering and amplification.
3. realize the early warning system of avoiding the collision of oil gas well drilling neighbouring well of method according to claim 1 or claim 2 for one kind; It is characterized in that: it comprises the acceleration transducer on the sleeve pipe that is installed in a positive drilling well and some offset wells respectively; The charge amplifier that each said acceleration transducer has the bandpass filtering function through lead connection one respectively; Said charge amplifier is connected with a synchrodata Acquisition Instrument through lead, and said synchronous data collection appearance connection one is equipped with the computer of vibration data analysis software.
4. a kind of early warning system of avoiding the collision of oil gas well drilling neighbouring well as claimed in claim 3, it is characterized in that: said synchronous data collection appearance is connected through cable with said computer.
5. a kind of early warning system of avoiding the collision of oil gas well drilling neighbouring well as claimed in claim 3; It is characterized in that: said synchronous data collection appearance is connected a WAP through a lead respectively with computer; Each WAP is respectively arranged with an antenna, and said synchronous data collection appearance is connected through wireless communication signal with said computer.
6. a kind of early warning system of avoiding the collision of oil gas well drilling neighbouring well as claimed in claim 3; It is characterized in that: the acceleration transducer on the said offset well sleeve pipe is divided into two groups; Each is organized said acceleration transducer and connects a synchrodata Acquisition Instrument through a said charge amplifier respectively; Each said synchronous data collection appearance is connected a WAP through a lead respectively with said computer; Each said WAP is provided with an antenna respectively, and each said synchronous data collection appearance is connected through wireless communication signal with said computer respectively.
7. a kind of early warning system of avoiding the collision of oil gas well drilling neighbouring well as claimed in claim 3; It is characterized in that: the acceleration transducer on the said offset well sleeve pipe is divided into more than two groups; Each is organized said acceleration transducer and connects a synchrodata Acquisition Instrument through a said charge amplifier respectively; Each said synchronous data collection appearance is connected a WAP through a lead respectively with said computer; Each said WAP is provided with an antenna respectively, and each said synchronous data collection appearance is connected through wireless communication signal with said computer respectively.
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| CN2008101008359A CN101235716B (en) | 2008-02-22 | 2008-02-22 | Prealarming method and method for avoiding oil gas well drilling neighbouring wellbore collision |
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| CN2008101008359A CN101235716B (en) | 2008-02-22 | 2008-02-22 | Prealarming method and method for avoiding oil gas well drilling neighbouring wellbore collision |
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| US20110080807A1 (en) * | 2009-10-02 | 2011-04-07 | Clampon, Inc. | Method for collision risk mitigation using intelligent non-invasive ultrasonic sensors for directional drilling |
| CN102373917A (en) * | 2010-08-12 | 2012-03-14 | 刘永军 | Anti-collision system for monitoring casing pipe on wellhead |
| CN102587891B (en) * | 2012-02-21 | 2014-08-06 | 中国石油大学(北京) | Method and system for detecting space position between drilling well and a plurality of adjacent wells |
| CN102644457B (en) * | 2012-04-19 | 2014-12-24 | 中国海洋石油总公司 | Method for calculating distance between adjacent wells whiling drilling |
| CN103410569B (en) * | 2013-08-27 | 2016-03-02 | 武汉钢铁(集团)公司 | Metal mine down-hole Microseismic monitoring system |
| CN105874163B (en) * | 2013-09-30 | 2019-12-31 | 信远达石油服务有限公司 | Well drilling auxiliary system |
| RU2649706C1 (en) * | 2014-04-28 | 2018-04-04 | Хэллибертон Энерджи Сервисиз, Инк. | Transmitting warnings upon danger of crossing wells to remote device |
| CN104963676A (en) * | 2015-06-25 | 2015-10-07 | 中国石油天然气股份有限公司 | Anti-collision warning device and method for well drilling |
| CN109387771B (en) * | 2018-10-16 | 2020-12-29 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Clamp for semiconductor integrated circuit particle impact noise test and test method |
| CN111896201A (en) * | 2019-05-05 | 2020-11-06 | 天津市房屋质量安全鉴定检测中心有限公司 | Building vibration modal testing method |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |