CN106351639A - Comprehensive logging integrated device - Google Patents

Comprehensive logging integrated device Download PDF

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Publication number
CN106351639A
CN106351639A CN201610835296.8A CN201610835296A CN106351639A CN 106351639 A CN106351639 A CN 106351639A CN 201610835296 A CN201610835296 A CN 201610835296A CN 106351639 A CN106351639 A CN 106351639A
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logging
sensor
drilling
gas
parameter sensor
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CN201610835296.8A
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董鹏敏
韩昱晨
田宝
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Xian Shiyou University
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Xian Shiyou University
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Priority to CN201610835296.8A priority Critical patent/CN106351639A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

A comprehensive logging integrated device comprises an engineering parameter sensor, a drilling fluid parameter sensor, an infrared spectrum gas logging system, a cutting logging system, a wireless transmission system, an acquiring machine and processing machine unit, a monitoring system and an anti-explosion logging cabin. The comprehensive logging integrated device is mounted at a drilling site. The engineering parameter sensor and the drilling fluid parameter sensor are used on an external drilling platform for acquiring drilling engineering parameters, the cutting logging system is used for realizing cutting logging by acquiring cuttings automatically, and the infrared spectrum gas logging system can separate gas required for gas logging and replace an original degasser to complete gas logging. The device can automatically acquire the cuttings, gas and engineering parameters, the line mounting is simple, the cutting recognition accuracy is high, the labor intensity of workers is reduced, and the work efficiency of the workers is improved.

Description

A kind of compound logging integration apparatus
Technical field
The present invention relates to the well logging field during oil-gas drilling, set particularly to a kind of compound logging integration Standby.
Background technology
In oil gas drilling operation, by using multiple measuring instruments, by the geologic parameter in drilling process, drilling well Liquid parameter, drilling parameter and gas survey the collection of the data such as parameter, can be with direct reaction down-hole geological structure, oil-gas Layer position and containing The each side data such as amount and drilling engineering, mud logging techniques are most basic technology in oil-gas exploration and development activity, are to find, assess Oil-gas reservoir the most in time, the most direct means, it is timely, various to have an acquisition subsurface information, analysis interpretation efficiently feature.
In mud logging operation, main inclusion specifically includes engineering logging, geological logging, gas detection logging, sieve residue log, pyrolysis The series techniques such as gas chromatogram well logging.
Engineering logging is mainly by hook position sensor, weight transduser, liquid level sensor, mud weight sensor, torsion The many kinds of parameters such as square sensor, rotary speed sensor collection sensor composition, main collection real-time drilling parameter is it is therefore an objective to remember Record drilling process, it is therefore foreseen that drilling failure, provides information service and engineering decision for drilling well.
Mainly by being accomplished manually, often creep into 1 to 2 meter according to geologic requirements needs and sampling one under vibrosieve sieve residue log Secondary, and be carried out.In order to ensure the accuracy sampling, each well logging team will a number of workman of special configuration be dragged for Take the work of landwaste.
Gas detection logging mainly passes through the gaseous composition gathering in drilling fluid and is analyzed, and will be included by well head degasser The gases such as hydrocarbon gas composition gas, carbon monoxide and hydrogen pass through Pipeline transport and use gas chromatograph warp in comprehensive logging instrument Row analysis, judges formation fluid property, indirectly reservoir is evaluated through row.
Compound logging equipment grows up on the basis of gas detection logging and geological logging, and China starts to introduce in 1953 Semi-automatic mud logging unit, develops comprehensive logging instrument on first generation panel in 1974, has developed to forth generation comprehensive logging instrument at present. At present comprehensive logging instrument mainly includes three parts, is gas detection logging respectively, fluorologging and engineering logging, and it is mainly by being installed on The sensor of drilling platforms, data/address bus and instrument shelter are constituted.
At present, all with gas detection logging as core, the mode of engineering logging auxiliary is operated domestic and international comprehensive logging instrument, its Middle gas detection logging and engineering logging have automation equipment at present, but sieve residue log is also based on manual detection mode.And mesh To configure 1 to 2 geomatics engineer, 2 Instrumentation Engineering teacher, the basic configuration of 1 team leader, with daily relay in front compound logging room 2 calculating, needs at least 10 people to be operated, and working strength is big, risk is high, so in the urgent need to carrying out to comprehensive logging instrument Automatic improving.
Content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, it is an object of the invention to provide a kind of compound logging integration sets Standby, it is applied to compound logging information gathering and the process in petroleum exploration and development process, this invention can be automatically performed landwaste record The functions such as well, gas detection logging and engineering logging, provide a kind of automatization's mud logging equipment meeting oil drilling field requirement.
To achieve these goals, the technical solution used in the present invention is:
A kind of compound logging integration apparatus it is characterised in that:
Including engineering parameter sensor and drilling liquid parameter sensor, for the correlation rig work of drilling platforms direct measurement Parameter;
Sieve residue log system, for the related rig work measuring engineering parameter sensor and drilling liquid parameter sensor It is sampled as parameter, the mud after sampling is carried out separating, identifies, obtains data and uploaded;
Gas detection logging system, including negative-pressure gas collection system and gas cls analysis instrument, negative-pressure gas collection system is installed on On the separation vibrating sieve of sieve residue log system, by the sieving actoion of separation vibrating sieve, separate the gaseous composition in drilling fluid, adopt Collect and be transferred to and in gas cls analysis instrument, carry out conventional logging gas cls analysis;
Described engineering parameter sensor and drilling liquid parameter sensor pass through wireless transmitting system and pass the information on to preventing Quick-fried well logging cabin, is transmitted to monitoring system by satellite after acquired machine and datatron process.
Described sieve residue log system includes probe tube, and the outfan of probe tube connects sampling pump input, described sampling The outfan of pump is connected with the separation vibrating sieve input being provided with negative pressure collecting device, and the mud of described separation vibrating sieve goes out Mouth is connected with reuse pipe by reuse pump, and reuse Gutron is crossed elevated trough and connected with probe tube;The debris outlet of separation vibrating sieve with Landwaste purging system be connected, landwaste purging system is connected with the subpackage marking equipment being provided with ccd photographing unit, ccd photographing unit and Well logging analytic unit is connected;
Negative pressure collecting device is connected with gas detection logging instrument, gas detection logging instrument, the data output end difference of well logging analytic unit It is connected with the slave computer for collecting data;Described slave computer is connected with background monitoring system by host computer.
Described gas detection logging system is infrared spectrum gas detection logging system.
Described engineering parameter sensor is installed at equipment corresponding with drilling platforms with drilling liquid parameter sensor;
Described engineering parameter sensor and drilling liquid parameter sensor, including pressure transducer, rotating disk torque sensor, pump Rush sensor, speed probe, casing pressure sensor, weight on hook sensor, drilling fluid import/export density sensor, brill The temperature sensor of well liquid import/export, drilling fluid import/export conductivity sensor, drilling fluid import/export flow transducer.
Described explosion-proof well logging cabin, including logging equipment room, positive pressure fan, pressure transducer and life auxiliary equipment, well logging Instrument shelter is divided into two parts, is central monitoring position and centre respectively, is arranged at by drilling platforms;Described monitoring system, including Monitoring display screen, ups and well logging integration apparatus control system, are arranged in logging equipment room.
Described logging equipment room comprises equipment compartment and control cabinet respectively, and centre is connected by hermatic door, peace in equipment compartment Dress infrared spectrum gas detection logging system, sieve residue log system, wireless transmitting system, harvester and datatron, explosion protection system, control The life auxiliary equipment such as monitoring system and air-conditioning is comprised in cabin.
Described wireless transmitting system is using grinding wireless ap module 6311gn of China based on 802.11 standards.
Described explosion-proof well logging cabin be installed on apart from 30 meters of well site in addition when it is not necessary to install explosion protection system.
Beneficial effects of the present invention:
(1) this equipment gathers landwaste by landwaste automatic acquisition equipment, and the landwaste obtaining carries out automatically analyzing packing, faced by Complex environment directly can be evaluated by remote control center, replaces the loaded down with trivial details fatigue of existing equipment manual sampling, and interpretation of result is subject to warp Test the incomplete shortcoming of restriction.
(2) original degasser is replaced by negative-pressure gas collection system, negative-pressure gas collection system is integrated in well logging storehouse and separates In vibrosieve, probe tube replaces air shooter, replace degasser need to be installed on drilling platforms elevated trough (pipe) and need through Often safeguard the tedious work of adjustment, improve recognition accuracy.
(3) using the Wireless Information Collecting System based on 802.11 technology, original complexity circuit and pipeline are replaced, it is to avoid Loaded down with trivial details installing/dismounting work during logging removal of home, saves well site space, improves work efficiency.
(4) be installed on apart from 30 meters of well site outer when, explosion protection system can not be installed, reduce weight and energy consumption.
Brief description
Fig. 1 is the system pie graph of compound logging integration apparatus.
Fig. 2 is sieve residue log working-flow figure.
Specific embodiment
With embodiment, the present invention is described in further details below in conjunction with the accompanying drawings.
As shown in Figure 1: a kind of compound logging integration apparatus, including engineering parameter sensor, drilling liquid parameter sensor, Infrared spectrum gas detection logging system, sieve residue log system, wireless transmitting system, harvester and datatron, monitoring system, explosion-proof record Well cabin.
Described engineering parameter sensor and drilling liquid parameter sensor, including pressure transducer, rotating disk torque sensor, pump Rush sensor, speed probe, casing pressure sensor, weight on hook sensor, drilling fluid import/export density sensor, brill The temperature sensor of well liquid import/export, drilling fluid import/export conductivity sensor, drilling fluid import/export flow transducer etc., bag Include but not limited to this.
By drilling platforms direct measurement correlation rig running parameter, and shown according to the well logging General Requirement of prospect pit drilling well And when recording brill, well depth, the pressure of the drill, drilling speed, mud pit volume, conductivity, density, pump impulse, flow, the reference record such as lagged time Instruct drillng operation, prevention drilling failure occurs.
Described sieve residue log system, including cutting sampling pump, mud reuse pump, separation vibrating sieve, landwaste cleaning equipment, rock Bits dispensing apparatus, landwaste marking equipment, ccd landwaste identifying system and its process software etc., cutting sampling pump is by high with drilling well The pipeline that rack slot (pipe) is connected, requires to extract mud according to controlling, and the mixing by separation vibrating sieve separation landwaste and mud Thing, landwaste cleaned by cleaning equipment after subpackage mark the accurately identifying of cutting grain is obtained by ccd landwaste identifying system, Obtain data and be uploaded to host computer.
Described infrared spectrum gas detection logging system, including negative-pressure gas collecting device, the equipment such as infrared spectrum mud logging unit, bears Body collecting device of calming the anger is installed on separation vibrating sieve, with the work of separation vibrating sieve, in drilling fluid entrained gas with Drilling fluid separates, and the collection of negative pressure collecting device is extracted gas and is sent in infrared spectrum gas instrument by pipeline, obtain data simultaneously on Reach host computer.
Described wireless transmitting system, including well site wireless transmitting system and sts satellite transmission system, well site is wirelessly transferred and is Using grinding wireless ap module 6311gn of China based on 802.11 standards, each sensor of well site passes through well site wireless transmitting system to system Transmit to harvester and datatron, and remote monitoring center is uploaded to by sts satellite transmission system, realize simple data scene Process, the function that complex data expert is processed.
Described monitoring system, including monitoring display screen, ups and well logging integration apparatus control system, is arranged at logging In device room.By the real-time display to gathered data, it is that engineering staff grasps field conditions at any time.
Described explosion-proof well logging cabin, including logging equipment room, positive pressure fan, pressure transducer and life auxiliary equipment, well logging Instrument shelter is divided into two parts, is central monitoring position and centre respectively, is arranged at by drilling platforms;Gas is gathered by pressure transducer Pressure parameter, and be connected with positive pressure fan, by the real-time make-up gas of closed loop control, meet the demand of positive-pressure explosion-proof, further, If being positioned over outside anti-explosion area, the configurable well logging cabin not having the equipment such as positive pressure fan, pressure transducer, save space, reduce energy Consumption.
Described logging equipment room is converted using TEU (Twenty-foot Equivalent Unit), and inside is divided into two parts, is equipment compartment respectively And control cabinet, install in equipment compartment infrared spectrum gas detection logging system, sieve residue log system, wireless transmitting system, harvester with Datatron, explosion protection system, comprise the life auxiliary equipment such as monitoring system and air-conditioning, equipment compartment and control cabinet are by close in control cabinet Close a connection, well logging storehouse is overall to keep internal pressure to be slightly larger than outdoor it is ensured that reaching explosion-proof wanting under the control of explosion protection system Ask.External power, is easy to preserve work number it is ensured that can be system power supply 5 to 10 minutes in the case of power cut through ups According to and capsule information.Be installed on apart from 30 meters of well site outer when, explosion protection system can not be installed, only retain well logging cabin, reduce weight with And energy consumption.
The operation principle of the present invention:
When the first, installing, well logging integration apparatus are installed on well site correct position and fix;Fixed wireless receiving device with And satellite antenna, switch on power;Connect probe tube to be simultaneously fixed in elevated trough (pipe), connect back to pipe mud under the vibrosieve of well site In stock tank;At installing engineering parameter sensors, drilling liquid parameter sensor relevant device on the drilling platforms.
2nd, well logging landwaste System Working Principle: by cutting sampling system, landwaste purging system, landwaste subpackage marking system, Ccd landwaste identifying system forms.During work, sampling pump is obtained mixed containing landwaste by the pipeline being connected in elevated trough (pipe) Compound, this mixture passes through the separation vibrating sieve of cutting sampling system, and landwaste is separated with mud, and this separation vibrating sieve is using straight Linearly coupled sieves, and does not have " rubbing " effect of conventional drilling fluid vibrating sieve, and the landwaste obtaining is loose, easily cleans, after separating Mud is returned in mud pit by reuse pump and reuses, and saves drilling cost;Landwaste purging system is by spiral cleaning mechanism Become, it is mainly characterized by being slowly advanced landwaste advance by helical pipe, and sprays high-pressure water mist in pipeline, and landwaste is carried out Cleaning, the sewage after cleaning passes through precipitation reuse and reduces water consumption, and the landwaste after cleaning enters landwaste subpackage mark system System;Landwaste subpackage marking system is mainly made up of rotating disc type receiver, data marking machine, and rotating disc type receiver has 24 splicings Box, equipped with contactless chip under pulp-collecting box, the landwaste after cleaning is collected in splicing respectively according to drilling depth, and is beaten by data Mark machine by well depth, time, bore when etc. information write in the chip of pulp-collecting box, often 24 meters of drilling is by artificially collecting once;Ccd landwaste Identifying system has high-resolution ccd camera, light compensating lamp, software kit to constitute, and high-resolution ccd camera and light compensating lamp are installed on and turn Above disc type receiver, often obtain a box landwaste and take pictures once, processed by software kit, obtain landwaste information and pass through satellite It is uploaded to remote monitoring center.
Sieve residue log system is controlled by plc, and it often creeps into 1 meter and can obtain 1 kilogram of landwaste, quantitative acquisition landwaste Method is: collection well depth, when boring, pump impulse, the parameter such as flow, and according to existing Related Computational Methods in compound logging field and former Reason, obtains brief introduction parameter.For example, quantitative landwaste can be obtained when boring in the case of changing by controlling sampling pump discharge, its Sampling pump discharge is determined by formula (1):
In formula, q is sampling pump discharge, ρStoneFor current cuttings density, q is slush pump flow, and r is bit diameter.
Three: gas detection logging System Working Principle: gas detection logging system is set by negative-pressure gas collection system, gas cls analysis instrument etc. Standby.Negative-pressure gas collection system is installed on the separation vibrating sieve of sieve residue log system, by the sieving actoion of separation vibrating sieve, Separate the gaseous composition in drilling fluid, and gathered and be transferred in gas cls analysis instrument by negative-pressure gas collection system and carry out conventional record Gas well gas cls analysis;The inventive method has indiscriminately imitated routine based on the portion in addition to degasser in gas chromatography comprehensive logging instrument Point, by using the present invention, the degasser needing to install in gas detection logging operation in elevated trough (pipe) can be replaced, to reduce work Make intensity and frequency of maintenance, reduce operating risk, reach the purpose improving working performance.
It is equipped with mud logging software in harvester and datatron, the data collecting is processed through row, this software can will be processed The data display crossed in monitoring system, and can production report, under the operation of staff, passed by the satellite of Transmission system Contribute's data is uploaded to remote monitroing center, completes mud logging operation.

Claims (8)

1. a kind of compound logging integration apparatus are it is characterised in that include:
Engineering parameter sensor and drilling liquid parameter sensor, for drilling platforms direct measurement correlation rig running parameter;
Sieve residue log system, for the related rig running parameter measuring engineering parameter sensor and drilling liquid parameter sensor It is sampled, the mud after sampling is carried out separating, identifies, obtains data and uploaded;
Gas detection logging system, including negative-pressure gas collection system and gas cls analysis instrument, negative-pressure gas collection system is installed on landwaste On the separation vibrating sieve of logging system, by the sieving actoion of separation vibrating sieve, separate the gaseous composition in drilling fluid, collection is simultaneously It is transferred in gas cls analysis instrument and carry out conventional logging gas cls analysis;
Described engineering parameter sensor and drilling liquid parameter sensor are passed the information on to explosion-proof record by wireless transmitting system Well cabin, is transmitted to monitoring system by satellite after acquired machine and datatron process.
2. a kind of compound logging integration apparatus according to claim 1 are it is characterised in that described sieve residue log system Including probe tube, the outfan of probe tube connects sampling pump input, and the outfan of described sampling pump is collected with being provided with negative pressure The separation vibrating sieve input of device is connected, and the slurry outlet of described separation vibrating sieve is connected with reuse pipe by reuse pump, Reuse Gutron is crossed elevated trough and is connected with probe tube;The debris outlet of separation vibrating sieve is connected with landwaste purging system, and landwaste cleans System is connected with the subpackage marking equipment being provided with ccd photographing unit, and ccd photographing unit is connected with well logging analytic unit;
Negative pressure collecting device is connected with gas detection logging instrument, gas detection logging instrument, well logging analytic unit data output end respectively with It is connected in the slave computer collecting data;Described slave computer is connected with background monitoring system by host computer.
3. a kind of compound logging integration apparatus according to claim 1 are it is characterised in that described gas detection logging system For infrared spectrum gas detection logging system.
4. a kind of compound logging integration apparatus according to claim 1 are it is characterised in that described engineering parameter senses Device is arranged at corresponding equipment on drilling platforms with drilling liquid parameter sensor;
Described engineering parameter sensor and drilling liquid parameter sensor, pass including pressure transducer, rotating disk torque sensor, pump impulse Sensor, speed probe, casing pressure sensor, weight on hook sensor, drilling fluid import/export density sensor, drilling fluid Import/export temperature sensor, drilling fluid import/export conductivity sensor, drilling fluid import/export flow transducer.
5. a kind of compound logging integration apparatus according to claim 1 are it is characterised in that described explosion-proof well logging cabin includes Logging equipment room, positive pressure fan, pressure transducer and life auxiliary equipment, logging equipment room is divided into two parts, is to monitor respectively Center and centre, are arranged at by drilling platforms;Described monitoring system, sets including monitoring display screen, ups and well logging integration Standby control system, is arranged in logging equipment room.
6. a kind of compound logging integration apparatus according to claim 6 are it is characterised in that described logging equipment room divides Do not comprise equipment compartment and control cabinet, centre is connected by hermatic door, infrared spectrum gas detection logging system, landwaste are installed in equipment compartment Logging system, wireless transmitting system, harvester and datatron, explosion protection system, comprise monitoring system and air-conditioning etc. raw in control cabinet Auxiliary equipment alive.
7. a kind of compound logging integration apparatus according to claim 1 are it is characterised in that described wireless transmitting system Using grinding wireless ap module 6311gn of China based on 802.11 standards.
8. a kind of compound logging integration apparatus according to claim 1 are it is characterised in that described explosion-proof well logging cabin is pacified Be loaded on apart from 30 meters of well site in addition when it is not necessary to install explosion protection system.
CN201610835296.8A 2016-09-20 2016-09-20 Comprehensive logging integrated device Pending CN106351639A (en)

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
CN107664017A (en) * 2017-02-15 2018-02-06 河北坤石科技有限公司 A kind of modular rock core protection equipment
CN108590645A (en) * 2018-06-23 2018-09-28 蚌埠赛英电子科技发展有限公司 The mating mud comprehensive parameters harvester of wireless composite logging
CN108999580A (en) * 2018-09-13 2018-12-14 重庆市涪陵页岩气环保研发与技术服务中心 A kind of water base drilling cuttings Leaching and desalinization device and method of shale gas
CN110043252A (en) * 2019-05-24 2019-07-23 电子科技大学 A kind of rock debris image feature monitoring while drilling device
CN110702818A (en) * 2019-11-08 2020-01-17 中国石油大学(北京) Logging device
CN112282729A (en) * 2020-10-20 2021-01-29 中国石油集团渤海钻探工程有限公司 Gas logging data detection experimental device for simulating borehole environment
CN112696186A (en) * 2019-10-18 2021-04-23 中国石油化工股份有限公司 Method and system for automatically identifying drilling cuttings
CN113323612A (en) * 2021-08-03 2021-08-31 中国石油集团川庆钻探工程有限公司 Anti-overflow pipe fluid detection device, comprehensive processing system and identification method
CN113431492A (en) * 2021-08-10 2021-09-24 江西科技学院 Drilling device for geotechnical engineering investigation and using method
CN113431561A (en) * 2021-07-12 2021-09-24 绍兴文理学院 Automatic rock recognition device for drilling
CN114235871A (en) * 2021-12-08 2022-03-25 核工业二三O研究所 Comprehensive logging method for in-situ leaching sandstone type uranium ores
CN115184093A (en) * 2022-06-22 2022-10-14 中国石油天然气集团有限公司 Rock debris analysis and recognition device and rock debris analysis and recognition method

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CN107664017A (en) * 2017-02-15 2018-02-06 河北坤石科技有限公司 A kind of modular rock core protection equipment
CN108590645A (en) * 2018-06-23 2018-09-28 蚌埠赛英电子科技发展有限公司 The mating mud comprehensive parameters harvester of wireless composite logging
CN108999580B (en) * 2018-09-13 2023-10-27 重庆市涪陵页岩气环保研发与技术服务中心 Shale gas water-based drilling cuttings leaching and desalting device and method
CN108999580A (en) * 2018-09-13 2018-12-14 重庆市涪陵页岩气环保研发与技术服务中心 A kind of water base drilling cuttings Leaching and desalinization device and method of shale gas
CN110043252A (en) * 2019-05-24 2019-07-23 电子科技大学 A kind of rock debris image feature monitoring while drilling device
CN110043252B (en) * 2019-05-24 2022-01-11 成都理工大学 Rock debris image characteristic monitoring device while drilling
CN112696186A (en) * 2019-10-18 2021-04-23 中国石油化工股份有限公司 Method and system for automatically identifying drilling cuttings
CN112696186B (en) * 2019-10-18 2024-04-16 中国石油化工股份有限公司 Method and system for automatically identifying drilling cuttings
CN110702818A (en) * 2019-11-08 2020-01-17 中国石油大学(北京) Logging device
CN112282729A (en) * 2020-10-20 2021-01-29 中国石油集团渤海钻探工程有限公司 Gas logging data detection experimental device for simulating borehole environment
CN112282729B (en) * 2020-10-20 2022-03-11 中国石油集团渤海钻探工程有限公司 Gas logging data detection experimental device for simulating borehole environment
CN113431561A (en) * 2021-07-12 2021-09-24 绍兴文理学院 Automatic rock recognition device for drilling
CN113323612A (en) * 2021-08-03 2021-08-31 中国石油集团川庆钻探工程有限公司 Anti-overflow pipe fluid detection device, comprehensive processing system and identification method
CN113431492A (en) * 2021-08-10 2021-09-24 江西科技学院 Drilling device for geotechnical engineering investigation and using method
CN113431492B (en) * 2021-08-10 2022-11-08 江西科技学院 Drilling device for geotechnical engineering investigation and using method
CN114235871A (en) * 2021-12-08 2022-03-25 核工业二三O研究所 Comprehensive logging method for in-situ leaching sandstone type uranium ores
CN115184093A (en) * 2022-06-22 2022-10-14 中国石油天然气集团有限公司 Rock debris analysis and recognition device and rock debris analysis and recognition method

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