CN102337886A - System of performing down-hole measurement on oil gas in slurry while drilling - Google Patents
System of performing down-hole measurement on oil gas in slurry while drilling Download PDFInfo
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- CN102337886A CN102337886A CN2010102365134A CN201010236513A CN102337886A CN 102337886 A CN102337886 A CN 102337886A CN 2010102365134 A CN2010102365134 A CN 2010102365134A CN 201010236513 A CN201010236513 A CN 201010236513A CN 102337886 A CN102337886 A CN 102337886A
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Abstract
The invention relates to a system of performing down-hole measurement on oil gas in slurry while drilling. The system provided by the invention is characterized in that a slurry characteristic parameter measurement short section is composed of a resistivity measurement part, a well temperature measurement part and other parameter measurement parts; the slurry resistivity measurement part is composed of an electrode system and a measuring circuit, and the electrode system is composed of four electrode collars; the electrode system is arranged in an annular groove of a drill collar and has a distance of 14 mm with the outer edge of the drill collar, and the investigation depth of the drill collar is 7 mm; and the measuring circuit is composed of a transmitting circuit and the measuring circuit, the transmitting circuit provides a 12.5HZ nonstandard square signal of a constant current to an emitting electrode, and the measuring circuit is used for detecting slurry resistivity signals taken out from an electrode M and an electrode N. The system provided by the invention is capable of measuring the resistivity, temperature and other parameters of the core chipping slurry contained in a well bottom in real time, judging the properties of oil, gas and water contained in a stratum through carrying out contrastive analysis on the characteristic parameters of the core chipping slurry contained in the well bottom and the slurry at the inlet of a same well, and directly discovering and recognizing an oil gas layer.
Description
Technical field
The present invention relates near a kind of system of downhole drill bit, measuring oil gas in the mud.
Background technology
Geophysical exploration is to follow petroleum industry and a science and technology producing and grow up, is mainly used in two fields of formation evaluation and completion evaluation, finally is implemented in and seeks oil and natural gas in the stratum.Therefore, geophysical exploration is a physical characteristic of in oil-gas exploration and development process, measuring, write down, analyze down-hole rock or fluid, and a kind of technology that oil gas is estimated is carried out in the reservoir, is called geophysical log again, is called for short well logging.Well logging has been given play to increasing effect just day by day as the important branch and the basis of petroleum industry.
Oil and natural gas is present in the space on stratum, and their existence brings some variations for the rerum natura of rock.The rerum natura of research rock like the electrology characteristic of rock, acoustic characteristic, nuclear physics characteristic etc., has just constituted the physical basis of various logging method.So formed several main logging methods, like electrical log, acoustic logging, nuclear logging etc., the hardware of these methods realizes just having formed various loggers.With the logger well logging, gather the information of reaction formation physical property; Handle and analyze these information with computer; Provide appraisal report by the log analysis professional at last, point out the oily prospect of reservoir.In order to improve the confidence level of evaluation, to make up well measurements under the multiple logger during well logging, log analysis need be carried out " comprehensively " with many logs and explain.Realize that the conventional method that formation physical parameters is measured is to utilize cable that logger is put into well to realize, abbreviate wireline logging as, use till today always.
Along with going deep into of oil-gas exploration, the especially increase of high angle hole, horizontal well quantity, increasing well logging service has turned to well logging during by wireline logging.Well logging during is compared with wireline logging; It not only can be convenient to measure at high angle hole, horizontal well; And the more important thing is to invade under the condition seldom at mud and measure; Avoided mud to invade, obtained the parameter of actual response formation physical property, thereby be widely used confirming the influence of undisturbed formation parameter.The middle oily Co., Ltd that logs well under the China National Petroleum Corporation (CNPC) follows the tracks of international advanced technology with how tame research units such as boring the instrument research center always; Be devoted to autonomous innovation; Grasp to the technology of boring is ripe day by day; Realized the measurement of formation resistivity, degree of porosity and lithology in the drilling course, the manufacture level of the equipment of well logging during simultaneously also leaps to world's rank of advanced units.Along with the develop rapidly of technology such as computer, information and network, all fast further and accurate to collection, transmission and the processing of underground survey signal; And the continuous lifting of well log interpretation troop quality and the enhancing of means, the explanation of more estimating the well-log information on stratum provides rich basis.
Yet; With the variation of landing surface and geological conditions, particularly in compactness seismic exploration exploitation, in order to find and discern oil-gas Layer; Need parameter more, the actual response formation physical property during to formation evaluation, this has higher requirement with measuring to equip to logging method.
Summary of the invention
The purpose of this invention is to provide near a kind of system of downhole drill bit, measuring oil gas in the mud.When oil drilling, need continue in well, to inject mud at well head, and be recycled to well head; The shaft bottom has just been bored the landwaste that the layer of turning up the soil forms and will have been sneaked in the mud in cyclic process, and its characteristic is changed, and makes characteristics of mud that different variations take place and bore the different layers landwaste of opening such as compacted zone, oil reservoir, gas-bearing formation and water layer; Ground is measured and uploaded to this characteristics of mud parameter that has changed in real time; With the characterisitic parameter comparative analysis of aboveground inlet mud, and combine the data of other variety classes apparatus measures, carry out integrated interpretation; Just can quicklook judge the characteristic of stratum oil-containing, gas, water, thereby directly find and discern oil-gas Layer.
In the DHM-MWD mud of the present invention the system of oil gas by ground host control system, embedded data acquisition system, sensor, mud pulse generator, driver, battery tube, orientation survey pipe nipple, data connect pipe nipple and with bore instrument, characteristics of mud parameter measurement pipe nipple is formed.
The various measurement pipe nipples of this system carry out the measurement of down-hole formation and characteristics of mud parameter and realize wireless transmission in drilling process, utilize mud-pulse in the drill string with the metrical information transfer of data to ground, ground system is handled in real time.
Ground host control system mainly comprises process control, user GUI, the telecommunication of initialization, the well logging during operation of system, the assistance application instrument of well logging during operation.The embedded data acquisition system mainly accomplishes the collection and the preliminary treatment of primary signal, and sends data to calculating and processing that main frame carries out project data through network.
System can also be connected with the teleprocessing center through network, and the result of current well logging during is sent to the teleprocessing center.Utilize the decision-making and the evaluation system at teleprocessing center, can decision information is on-the-spot to well logging during through network-feedback, thus instruct on-the-spot operation process.
The electrode system of in drilling process, realizing the accurate measurement of circulating mud characterisitic parameter need be installed in the drill collar inboard, and the design and installation of electrode system are keys of the present invention.
Characteristics of mud parameter measurement pipe nipple comprises resistivity measurement, temperature survey and other parameter measurement, is installed in the groove of drill collar sidewall.
The mud resistivity measure portion is made up of electrode system and interlock circuit.
Electrode system is made up of four electrode retaining collars: wherein two in the outside is emission electrode A and emission electrode B, and middle two is collecting electrode M and collecting electrode N.Electrode is provided on the side wall of the drill collar in the annular groove, from the outer edge of the drill collar 14mm, the detection depth is about 7mm, thus avoiding the formation on the measurement, the measured mud resistivity more true.
The resistivity measurement circuit is made up of radiating circuit and measuring circuit two parts, and radiating circuit provides the non-standard square-wave signal of the 12.5Hz of constant current to emission electrode, and measuring circuit detects the mud resistivity signal that is taken out by collecting electrode M and collecting electrode N.
Because the well temperature has certain influence to resistivity, when measuring mud resistivity, also need the measuring well temperature.
The temperature survey part is made up of probe and interlock circuit.
Temp probe is a thermistor, and its resistance becomes approximately linear to change with temperature.
Survey data all is stored in the mass storage of down-hole, after characteristics of mud parameter measurement pipe nipple goes out well, can carry out complete playback process.The part survey data can be used for real bore stratigraphic analysis and differentiation through being real-time transmitted to ground with sludge slurry the spread of the rumours system.
Description of drawings
Fig. 1 is with the jumping through rings border intrinsic parameter measuring system block diagram of going into the well
Fig. 2 (a) is electrode system radial section figure;
Fig. 2 (b) is the longitudinal sectional drawing of drill collar electrode system and peripheral part thereof;
Fig. 2 (c) is the detailed cross sectional view that electrode system amplifies.
The invention effect
The invention belongs to the survey well logging field of geophysical exploration, be applied in the well logging during process and directly find oil-gas Layer through measuring the characteristics of mud parameter.In Process of Oil Well Drilling; Be utilized in the characteristics of mud parameter measuring apparatus of installing in the drill collar; The resistivity, temperature and other parameter that contain rock core chip mud in real time at the bottom of the measuring well; Through comparative analysis with aboveground inlet characteristics of mud parameter, judge the character of stratum oil-containing, gas, water, directly find and discern oil-gas Layer.
The specific embodiment
Characteristics of mud parameter measurement pipe nipple comprises resistivity measurement, temperature survey and other parameter measurement, is installed in the drill collar sidewall.
The mud resistivity measure portion is made up of electrode system and interlock circuit.
Electrode system is made up of four electrode retaining collars: wherein two in the outside is emission electrode A and emission electrode B, and middle two is collecting electrode M and N.Electrode is disposed on one side of the drill collar, drill collar from the outer edge of 14mm, the detection depth of about 7mm, thus avoiding the formation on the measurement, so that the measured mud resistivity is more realistic.
The resistivity measurement circuit is made up of radiating circuit and measuring circuit two parts, and radiating circuit provides the non-standard square-wave signal of the 12.5Hz of constant current to emission electrode, and measuring circuit detects the mud resistivity signal that is taken out by electrode M and N.
Because the well temperature has certain influence to resistivity, when measuring mud resistivity, also need the measuring well temperature.
The temperature survey part is made up of probe and interlock circuit.
Temp probe is a thermistor, and its resistance becomes approximately linear to change with temperature.
Survey data all is stored in the mass storage of down-hole, after characteristics of mud parameter measurement pipe nipple goes out well, can carry out complete playback process.The part survey data can be used for real bore stratigraphic analysis and differentiation through being real-time transmitted to ground with sludge slurry the spread of the rumours system.
Claims (1)
1. the system of oil gas in the DHM-MWD mud, by ground host control system, embedded data acquisition system, sensor, mud pulse generator, driver, battery tube, orientation survey pipe nipple, data connect pipe nipple and with bore instrument, characteristics of mud parameter measurement pipe nipple is formed; It is characterized in that: characteristics of mud parameter measurement pipe nipple partly is made up of resistivity measurement part, temperature survey part and other parameter measurement;
The mud resistivity measure portion is made up of electrode system and measuring circuit;
Electrode ring electrode is composed of four components: two outer electrodes for the transmitter A and the emitter electrode B, and intermediate electrodes to receive two receiving electrodes M and N; electrode is disposed on the outer wall of the annular collar groove of the drill collars from outside edge 14mm, the detection depth of 7mm;
The mud measuring circuit is made up of radiating circuit and measuring circuit two parts, and radiating circuit provides the non-standard square-wave signal of the 12.5Hz of constant current to emission electrode, and measuring circuit detects the mud resistivity signal that is taken out by collecting electrode M and collecting electrode N;
The temperature survey part is made up of probe and circuit;
Temp probe is a thermistor, and its resistance becomes approximately linear to change with temperature, be arranged in the drill collar one side groove;
Mud resistivity measuring circuit, temperature survey circuit are arranged in the electronic circuit cabin of drill collar one side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010236513.4A CN102337886B (en) | 2010-07-22 | 2010-07-22 | System of performing down-hole measurement on oil gas in slurry while drilling |
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| CN201010236513.4A CN102337886B (en) | 2010-07-22 | 2010-07-22 | System of performing down-hole measurement on oil gas in slurry while drilling |
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| CN102337886A true CN102337886A (en) | 2012-02-01 |
| CN102337886B CN102337886B (en) | 2014-11-26 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691498A (en) * | 2012-06-29 | 2012-09-26 | 西南石油大学 | Instrument for measuring electrical parameters of mud-while-drilling in horizontal well |
| CN102720490A (en) * | 2012-06-29 | 2012-10-10 | 西南石油大学 | Measuring method and measuring apparatus of vertical well drilling fluid gas-oil information |
| CN102926686A (en) * | 2012-11-01 | 2013-02-13 | 三一重型装备有限公司 | Directional water feeder and directional drilling machine |
| CN104329086A (en) * | 2013-06-28 | 2015-02-04 | 普拉德研究及开发股份有限公司 | Downhole Fluid Sensor with Conductive Shield and Method of Using Same |
| CN104407223A (en) * | 2014-11-05 | 2015-03-11 | 贝兹维仪器(苏州)有限公司 | Combined resistivity measurement system and method for measuring resistivity by using combined resistivity measurement system |
| CN107178362A (en) * | 2017-07-26 | 2017-09-19 | 中国石油大学(华东) | A kind of oil/gas drilling gas cut early detection device based on impedance bioelectrical measurement |
| CN109505592A (en) * | 2017-09-14 | 2019-03-22 | 中国石油化工股份有限公司 | High-gain resistivity logging while drilling signal receiving device |
| CN112228049A (en) * | 2020-09-30 | 2021-01-15 | 核工业二〇八大队 | Measuring method for ground leaching process drill hole |
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| CN2674088Y (en) * | 2004-01-18 | 2005-01-26 | 大庆石油管理局 | Instrument for testing resistivity of well drilling liquid |
| CN101116011A (en) * | 2004-12-17 | 2008-01-30 | 贝克休斯公司 | Induction resistivity imaging principles and devices in oil based mud |
| CN2858950Y (en) * | 2005-05-27 | 2007-01-17 | 中国石化集团胜利石油管理局钻井工艺研究院 | Drill-following dual-induction resistivity measuring instrument |
| CN1712995A (en) * | 2005-07-15 | 2005-12-28 | 中国石化集团胜利石油管理局测井公司 | Logging instrument with strong focus and double side directions |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691498A (en) * | 2012-06-29 | 2012-09-26 | 西南石油大学 | Instrument for measuring electrical parameters of mud-while-drilling in horizontal well |
| CN102720490A (en) * | 2012-06-29 | 2012-10-10 | 西南石油大学 | Measuring method and measuring apparatus of vertical well drilling fluid gas-oil information |
| CN102720490B (en) * | 2012-06-29 | 2014-11-26 | 西南石油大学 | Measuring method and measuring apparatus of vertical well drilling fluid gas-oil information |
| CN102691498B (en) * | 2012-06-29 | 2014-11-26 | 西南石油大学 | Instrument for measuring electrical parameters of mud-while-drilling in horizontal well |
| CN102926686A (en) * | 2012-11-01 | 2013-02-13 | 三一重型装备有限公司 | Directional water feeder and directional drilling machine |
| CN102926686B (en) * | 2012-11-01 | 2015-10-28 | 三一重型装备有限公司 | Directed water feeder and directional drilling machine |
| CN104329086A (en) * | 2013-06-28 | 2015-02-04 | 普拉德研究及开发股份有限公司 | Downhole Fluid Sensor with Conductive Shield and Method of Using Same |
| CN104407223A (en) * | 2014-11-05 | 2015-03-11 | 贝兹维仪器(苏州)有限公司 | Combined resistivity measurement system and method for measuring resistivity by using combined resistivity measurement system |
| CN107178362A (en) * | 2017-07-26 | 2017-09-19 | 中国石油大学(华东) | A kind of oil/gas drilling gas cut early detection device based on impedance bioelectrical measurement |
| CN109505592A (en) * | 2017-09-14 | 2019-03-22 | 中国石油化工股份有限公司 | High-gain resistivity logging while drilling signal receiving device |
| CN109505592B (en) * | 2017-09-14 | 2021-10-12 | 中国石油化工股份有限公司 | High-gain resistivity signal receiving device while drilling |
| CN112228049A (en) * | 2020-09-30 | 2021-01-15 | 核工业二〇八大队 | Measuring method for ground leaching process drill hole |
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