WO2020199495A1 - 岩层参数的确定方法及装置 - Google Patents
岩层参数的确定方法及装置 Download PDFInfo
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- WO2020199495A1 WO2020199495A1 PCT/CN2019/104107 CN2019104107W WO2020199495A1 WO 2020199495 A1 WO2020199495 A1 WO 2020199495A1 CN 2019104107 W CN2019104107 W CN 2019104107W WO 2020199495 A1 WO2020199495 A1 WO 2020199495A1
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- rock
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- compressive strength
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
- G01N2203/0212—Theories, calculations
- G01N2203/0218—Calculations based on experimental data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0252—Monoaxial, i.e. the forces being applied along a single axis of the specimen
Definitions
- the invention relates to a method and device for determining rock parameters, belonging to the technical field of geological prospecting engineering.
- the present invention provides a method and device for determining rock formation parameters.
- the method for determining rock formation parameters includes obtaining g test data sets collected at different data collection times t during the process of drilling into the rock formation, and the test data in the test data set includes the data when drilling a unit volume of rock Drill pipe axial force work value w F , drill pipe torque work value w M when drilling unit volume of rock, drill bit and hole bottom friction work value w f when drilling unit volume of rock; put the g test data groups
- the test data are respectively substituted into the estimation formula of the rock uniaxial compressive strength value R c to determine the g rock uniaxial compressive strength values R corresponding to the g test data sets collected at different data collection times t ci , where R ci is the uniaxial compressive strength value of the rock corresponding to the i-th test data set obtained in the order of collection time; the determined uniaxial compressive strength values of g rocks R ci are formed in the order of data collection
- the data sequence A of the uniaxial compressive strength value of a rock (R )
- the method for determining rock formation parameters provided by the present invention further includes: calculating the work value w F of the drill pipe axial force when drilling the unit volume of rock according to formula (3):
- the method for determining the estimation formula of the rock uniaxial compressive strength value R c in the method for determining rock formation parameters provided by the present invention includes: using the drill pipe axial force value w F when drilling a unit volume of rock, The drill pipe torque work value w M when drilling a unit volume of rock, the drill bit and the hole bottom friction work value w f when drilling a unit volume of rock are the independent variables, and the rock uniaxial compressive strength value R c is the dependent variable. Obtained by linear regression method.
- the present invention also provides a rock formation parameter determination device, including an acquisition module for acquiring g test data sets collected at different data acquisition times t during the process of drilling into the rock formation, the test data sets
- the test data in includes the drill pipe axial work value w F when drilling a unit volume of rock, the drill pipe torque work value w M when drilling a unit volume of rock, and the friction work value between the drill bit and the bottom of the hole when drilling a unit volume of rock w f ;
- It also includes a determination module for substituting the test data in the g test data groups into the estimation formula of the rock uniaxial compressive strength value R c to determine the different data collection time t
- the uniaxial compressive strength values of g rocks corresponding to the g collected test data sets R ci where R ci is the uniaxial compressive strength of the rock corresponding to the i-th test data set obtained in the order of collection time
- the determination module is also used to determine the uniaxial compressive strength values of g rocks R
- the acquisition module in the rock formation parameter determination device is also used to acquire the expression V(t) of the drilling speed V of the drill pipe that varies with the data acquisition time t,
- the advance rate is the depth at which the drill pipe enters the rock formation per second, in m/s;
- the acquisition module is further configured to acquire the drill pipe axial force work value w F when drilling a unit volume of rock according to formula (3):
- the obtaining module is also used to obtain the drill pipe torque work value w M when drilling a unit volume of rock according to formula (4):
- the acquisition module is also used to acquire the friction work value w f between the drill bit and the hole bottom when drilling the unit volume of rock according to formula (5):
- means for determining formation parameters in the present invention provides the determination module is further for determining the estimation formula uniaxial compressive strength value R c; and estimating the uniaxial compressive strength value R c is
- the method for determining the formula includes: the work value w F of the drill pipe axial force when drilling a unit volume of rock, the work value w M of the drill pipe torque when drilling a unit volume of rock, and the friction between the drill bit and the bottom of the hole when drilling a unit volume of rock.
- the work value w f is the independent variable
- the rock uniaxial compressive strength value R c is the dependent variable, which is obtained by linear regression.
- the rock formation parameter determination device further includes a data collector for collecting test data when the drill pipe is drilled into a unit volume of rock;
- the data collector includes a drilling speed sensor and a rotation speed sensor , Pressure sensor and torque sensor;
- the drilling speed sensor is used to collect the drilling speed V;
- the rotation speed sensor is used to collect the rotation speed n of the drill rod;
- the pressure sensor is used to collect the thrust F of the drill rod;
- the torque sensor It is used to collect the torque M of the drill pipe; it also includes a display for displaying the test data collected by the data collector when the drill pipe is drilled into a unit volume of rock, the data obtained by the acquisition module and the data determined by the determination module;
- the acquisition module is used to receive the test data and the corresponding uniaxial compressive strength value R c when the drill pipe is drilled into a unit volume of rock collected by the data collector;
- the determination module processes the data information acquired by the acquisition module.
- the method and device for determining rock formation parameters provided by the present invention are based on the drill rod axial force when drilling a unit volume of rock in a plurality of test data sets collected at different data collection times during drilling into the rock formation.
- the work value, the drill pipe torque work value when drilling a unit volume of rock, and the drill bit and the hole bottom friction work value when drilling a unit volume of rock are substituted into the estimation formula of the rock uniaxial compressive strength value R c to obtain multiple rock units.
- Axial compressive strength value, and K-means cluster analysis software is used to determine the sub-sequence of rock uniaxial compressive strength values in different rock formation classifications.
- Figure 1 is a schematic flow chart of the method for determining rock formation parameters of this embodiment
- Figure 2 is a schematic diagram of the connection of the rock formation parameter determination device of this embodiment.
- the method for determining rock formation parameters provided in this embodiment includes:
- test data in the test data set include the value of drill pipe axial force w F when drilling a unit volume of rock, and drilling
- the experimental device in the process of drilling the rock formation by the rig, can directly or indirectly obtain the drill pipe axial force work value w F per unit volume of rock, and the drill pipe torque work value w when drilling unit volume of rock.
- M Experimental data such as the friction work value w f between the drill bit and the bottom of the hole when drilling a unit volume of rock; when the experimental device is acquiring these data, the time when the data is acquired can be recorded at the same time, and the time for the data acquisition can be It is synchronized.
- g test data sets represent multiple test data sets, which are not a specific limitation on the number of data sets, but are merely an expression of the number of acquired test data sets for the convenience of subsequent expressions.
- the formula for estimating the uniaxial compressive strength value of rock R c has been determined in advance, and the formula for estimating the uniaxial compressive strength value of rock R c can be directly used by reference formulas already determined in other documents, or It is obtained by linear regression on other experimental data.
- the mean value R of uniaxial compressive strength of e-layer rock is:
- the lithology of the rock formations changes, the g rock uniaxial compressive strength values R ci obtained in this process have time series themselves, in order to obtain continuous
- the lithology of the rock formations when analyzing these data, also has time sequence constraints.
- the subsequence is a certain segment of the data sequence A, and there is no overlap between multiple subsequences.
- the data sequence A is divided into d s subsequences, and after the multiple subsequences are arranged in chronological order, the continuity of the data and the data sequence A can be exactly the same.
- K-means algorithm is a hard clustering algorithm. It is a representative of a typical prototype-based objective function clustering method. It uses a certain distance from a data point to the prototype as the optimized objective function, and iterative operation is obtained by the method of seeking extreme values of the function. Adjustment rules.
- the algorithm uses the error square sum criterion function as the clustering criterion function.
- Software with K-means algorithm function commonly used R software, Matlab. The specific process of cluster analysis is completed by the existing software. This embodiment does not describe the process and principle of cluster analysis in detail, and only exemplifies the raw data that needs to be input and the type of data to be obtained.
- the method for determining rock formation parameters provided in this embodiment further includes the following steps:
- the drilling speed of the drill pipe in the rock formation will change.
- the drilling speed sensor can record the drilling speed value of the drill pipe every certain time, such as a few milliseconds. According to the experiment Through non-linear fitting, the multiple drilling speed values corresponding to different times in a certain time period collected in the data collection time can be obtained by the expression V(t) of the drilling speed V of the drill pipe changing with the data collection time t.
- step S1 may further include: calculating the work value w F of the drill rod axial force when drilling a unit volume of rock according to formula (3):
- test devices can directly obtain the work value w F of the drill pipe axial force when drilling a unit volume of rock, the work value w M of the drill pipe torque when drilling a unit volume of rock, and the bit and the value of the drill bit when drilling a unit volume of rock.
- the friction work value w f at the bottom of the hole in practice, it can also be obtained by indirect measurement.
- step S2 may further include: in the method for determining rock formation parameters provided in this embodiment, the method for determining the estimation formula of the rock uniaxial compressive strength value R c includes: The drill pipe axial force work value w F in volume rock, the drill pipe torque work value w M when drilling a unit volume of rock, the drill bit and the hole bottom friction work value w f when drilling a unit volume of rock are the independent variables.
- the uniaxial compressive strength value R c is the dependent variable and is obtained by linear regression.
- the linear regression method is a data processing method commonly used in scientific research, that is, a method of obtaining an empirical formula by obtaining reliable experimental data in advance, and then using the empirical formula to estimate the result.
- the software for multiple linear regression can use SPSS (Statistical Product and Service Solutions), Microsoft Excel and other software that can perform data processing.
- this embodiment also provides a rock formation parameter determination device, including an acquisition module, which is used to acquire g test data sets collected at different data acquisition times t during drilling into the rock formation.
- the test data in the test data group includes the work value w F of the drill pipe axial force when drilling a unit volume of rock, the work value w M of the drill pipe torque when drilling a unit volume of rock, the drill bit and the bottom of the hole when drilling a unit volume of rock Friction work value w f ;
- It also includes a determination module, which is used to substitute the test data in the g test data groups into the estimation formula of the rock uniaxial compressive strength value R c to determine the collection at different data collection times t
- the obtained g test data sets correspond to g rock uniaxial compressive strength values R ci , where R ci is the rock uniaxial compressive strength value corresponding to the i-th test data set obtained in the order of collection time; determine;
- the module is also used to convert the determined uniaxial compressive
- the acquisition module in the rock formation parameter determination device is also used to acquire the expression V(t) of the drilling speed V of the drill pipe that varies with the data collection time t, and the drilling speed of the drill pipe is The depth at which the drill pipe enters the rock formation per second, in m/s;
- the method for obtaining the expression V(t) of the drilling speed V of the drill pipe includes: the difference between the drilling speed V and the drilling speed V of different drill pipes
- the interval of the collection time t T e [t a , t b ]; then the thickness of the e-th layer is:
- the acquisition module is further used to acquire the value w F of the axial force of the drill pipe when drilling a unit volume of rock according to formula (3):
- the obtaining module is also used to obtain the work value w M of drill pipe torque when drilling a unit volume of rock according to formula (4):
- the acquisition module is also used to acquire the friction work value w f between the drill bit and the hole bottom when drilling a unit volume of rock according to formula (5):
- the thrust F of the drill pipe can be obtained by subtracting the gravity of the drill rig from the pressure of the rig in contact with the ground; the reaming coefficient ⁇ is the ratio of the area of the cross section of the drill pipe after the drill pipe is formed;
- the torque M of the rod can be measured by a torque sensor connected to the drill; the speed n of the drill rod can be measured by a speed sensor connected to the drill; the drilling speed V of the drill rod can be measured by a drilling speed sensor connected to the drill.
- the independent variable, taking the rock uniaxial compressive strength value R c as the dependent variable, is obtained by linear regression.
- the rock formation parameter determination device further includes a data collector, which is used to collect test data when the drill pipe is drilled into a unit volume of rock;
- the data collector includes a drilling speed sensor, a rotation speed sensor, and a pressure sensor And torque sensor;
- the drilling speed sensor is used to collect the drilling speed V;
- the speed sensor is used to collect the rotation speed n of the drill rod;
- the pressure sensor is used to collect the thrust F of the drill rod;
- the torque sensor is used to collect the torque M of the drill rod;
- the display is used to display the test data collected by the data collector when the drill pipe is drilled into a unit volume of rock, the data obtained by the acquisition module and the data determined by the determination module;
- the acquisition module is used to receive the drill pipe drilling unit collected by the data collector
- the determination module processes the data information acquired by the acquisition module.
- a person of ordinary skill in the art can understand that all or part of the steps of the foregoing method embodiments can be implemented by a program instructing relevant hardware.
- the aforementioned program can be stored in a computer readable storage medium.
- the steps including the foregoing method embodiments are executed; and the foregoing storage medium includes: ROM, RAM, magnetic disk, or optical disk and other media that can store program codes.
- the estimation model of rock uniaxial compressive strength value R c is preset as formula (1) to perform multiple linear regression to obtain the estimation formula of rock uniaxial compressive strength value R c :
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Abstract
Description
Claims (9)
- 一种岩层参数的确定方法,其特征在于,包括:获取钻进岩层过程中在不同的数据采集时间t采集到的g个试验数据组,所述试验数据组中的试验数据包括钻进单位体积岩石时的钻杆轴力做功值w F、钻进单位体积岩石时的钻杆扭矩做功值w M、钻进单位体积岩石时的钻头与孔底摩擦做功值w f;将所述g个试验数据组中的试验数据分别代入岩石单轴抗压强度值R c的估算公式,以确定在不同的数据采集时间t采集到的所述g个试验数据组分别对应的g个岩石单轴抗压强度值R ci,其中R ci为按照采集时间顺序获取的第i个试验数据组所对应的岩石单轴抗压强度值;将确定的g个岩石单轴抗压强度值R ci按照数据采集的时间顺序形成一岩石单轴抗压强度值的数据序列A=(R c1,R c2,R c3,……,R ci,……,R cg),将该数据序列A通过K-means聚类分析软件来确定最终分类结果;所述最终分类结果包括最佳分类数d s和每一分类的子序列;其中最佳分类数d s即为岩层按照岩石单轴抗压强度值的区别划分的总层数;当第e个子序列为A e=(R ca,R ca+1,……,R cb)时,则第e层岩层的单轴抗压强度均值R为:
- 根据权利要求1所述的确定方法,其特征在于,所述岩石单轴抗压强度值R c的估算公式的确定方法包括:以钻进单位体积岩石时的钻杆轴力做功值w F、钻进单位体积岩石时的钻杆扭矩做功值w M、钻进单位体积岩石时的钻头与孔底摩擦做功值w f为自变量,以岩石单轴抗压强度值R c为因变量,通过线性回归方法得到。
- 一种岩层参数的确定装置,其特征在于,包括:获取模块,所述获取模块用于获取钻进岩层过程中在不同的数据采集时间t采集到的g个试验数据组,所述试验数据组中的试验数据包括钻进单位体积岩石时的钻杆轴力做功值w F、钻进单位体积岩石时的钻杆扭矩做功值w M、钻进单位体积岩石时的钻头与孔底摩擦做功值w f;确定模块,所述确定模块用于将所述g个试验数据组中的试验数据分别代入岩石单轴抗压强度值R c的估算公式,以确定在不同的数据采集时间t采集到的所述g个试验数据组分别对应的g个岩石单轴抗压强度值R ci,其中R ci为按照采集时间顺序获取的第i个试验数据组所对应的岩石单轴抗压强度值;所述确定模块还用于将确定的g个岩石单轴抗压强度值R ci按照数据采集的时间顺序形成一岩石单轴抗压强度值的数据序列A=(R c1,R c2,R c3,……,R ci,……,R cg),将该数据序列A通过K-means聚类分析软件来确定最终分类结果;所述最终分类结果包括最佳分类数d s和每一分类的子序列;其中最佳分类数d s即为岩层按照岩石单轴抗压强度值的区别划分的总层数;当第e个子序列为A e=(R ca,R ca+1,……,R cb)时,则第e层岩层的单轴抗压强度均值R为:
- 根据权利要求5所述的确定装置,其特征在于:所述确定模块还用于确定所述岩石单轴抗压强度值R c的估算公式;所述岩石单轴抗压强度值R c的估算公式的确定方法包括:以钻进单位体积岩石时的钻杆轴力做功值w F、钻进单位体积岩石时的钻杆扭矩做功值w M、钻进单位体积岩石时的钻头与孔底摩擦做功值w f为自变量,以岩石单轴抗压强度值R c为因变量,通过线性回归方法得到。
- 根据权利要求5所述的确定装置,其特征在于,还包括:数据采集器,所述数据采集器用于采集钻杆钻进单位体积岩石时的试验数据;所述数据采集器包括钻速传感器、转速传感器、压力传感器和扭矩传感器;所述钻速传感器用于采集钻进速度V;所述转速传感器用于采集钻杆的转速n;所述压力传感器用于采集钻杆的推力F;所述扭矩传感器用于采集钻杆的扭矩M;显示器,所述显示器用于显示数据采集器采集的钻杆钻进单位体积岩石时的试验数据、获取模块获取的数据和确定模块确定的数据;所述获取模块用于接收数据采集器采集的钻杆钻进单位体积岩石时的试验数据和对应的单轴抗压强度值R c;所述确定模块对获取模块获取的数据信息进行处理。
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| RU2020141122A RU2762675C9 (ru) | 2019-04-01 | 2019-09-03 | Способ и устройство для определения параметров пласта горной породы |
| AU2019439997A AU2019439997A1 (en) | 2019-04-01 | 2019-09-03 | Method and device for determining rock stratum parameters |
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| CN111075424B (zh) * | 2019-12-25 | 2022-11-18 | 中国石油大学(华东) | 一种修正随钻测量参数测量结果的方法 |
| CN111706322B (zh) * | 2020-07-17 | 2023-03-21 | 中国铁建重工集团股份有限公司 | 一种岩石钻进响应的预测方法和预测系统 |
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| CN116879527B (zh) * | 2023-06-21 | 2026-02-24 | 中铁第四勘察设计院集团有限公司 | 基于随钻参数实时确定岩体基本质量分级的方法及系统 |
| CN117763466B (zh) * | 2024-02-22 | 2024-07-09 | 中石化经纬有限公司 | 一种基于聚类算法的地层可钻性评价方法及系统 |
| CN118392662B (zh) * | 2024-06-26 | 2024-11-05 | 中国科学院武汉岩土力学研究所 | 基于岩芯回弹和随钻参数的岩体抗压强度测定方法及系统 |
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| CN113482599A (zh) * | 2021-07-08 | 2021-10-08 | 中国科学院武汉岩土力学研究所 | 便携式原位测试与识别数据采集系统及设备 |
| CN115266339A (zh) * | 2022-07-18 | 2022-11-01 | 山东黄金矿业科技有限公司深井开采实验室分公司 | 花岗岩单轴抗压强度的计算方法 |
| CN115824853A (zh) * | 2022-11-18 | 2023-03-21 | 国能神东煤炭集团有限责任公司 | 缩短地下水库与煤炭开采空间安全距离的方法 |
| CN116165268A (zh) * | 2022-11-23 | 2023-05-26 | 中国电建集团成都勘测设计研究院有限公司 | 岩石强度检测定距装置及岩石强度检测仪、使用方法 |
| CN115982640A (zh) * | 2022-12-20 | 2023-04-18 | 鞍钢集团矿业有限公司 | 一种钻孔过程实时岩石种类判断方法 |
| CN116485225A (zh) * | 2023-03-15 | 2023-07-25 | 西南交通大学 | 基于钻进参数的施工阶段围岩bq值自动获取方法及系统 |
| CN116485225B (zh) * | 2023-03-15 | 2023-11-10 | 西南交通大学 | 基于钻进参数的施工阶段围岩bq值自动获取方法及系统 |
| CN116499827A (zh) * | 2023-04-18 | 2023-07-28 | 中国石油大学(北京) | 多岩性互层人造岩样制备装置及方法 |
| CN116609184A (zh) * | 2023-05-22 | 2023-08-18 | 中国石油大学(华东) | 一种由上返块体预测原位条件下破碎性地层抗压强度的方法 |
| CN117288587A (zh) * | 2023-11-24 | 2023-12-26 | 中国矿业大学(北京) | 岩体抗拉强度随钻测试方法与系统 |
| CN117288587B (zh) * | 2023-11-24 | 2024-02-20 | 中国矿业大学(北京) | 岩体抗拉强度随钻测试方法与系统 |
| CN119712228A (zh) * | 2024-12-18 | 2025-03-28 | 中国矿业大学 | 一种基于随钻参数响应特征的巷道顶板稳定性评价方法 |
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| Publication number | Publication date |
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| RU2762675C1 (ru) | 2021-12-21 |
| CN110130883A (zh) | 2019-08-16 |
| AU2019439997A1 (en) | 2021-01-07 |
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