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LIANG Jian, LI Xiaoyang, ZHOU Hongjun, CHE Yangang, SONG Weijian, LIU Bei, HOU Yue, LI Xinmiao
2025,52(6):1-14, DOI: 10.12143/j.ztgc.2025.06.001
Abstract:
Technological innovation is the primary driver of advancement in geological core drilling engineering. This paper reviews the innovative achievements in China’s geological core drilling equipment throughout the “14th Five-Year Plan” period and analyzes the associated development bottlenecks in policy， economics， technology， and market competition. Furthermore， it provides an outlook on the innovation directions and tasks for the “15th Five-Year Plan” period， focusing on big data， intelligentization， and green low-carbon technologies. The goal is to support the national strategies for “deep earth，” “deep sea，” and “deep space” and to offer insights for enhancing the industry’s technological innovation capacity and impact.
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GUAN Chengkai, HUANG Fan, TAN Songcheng, YANG Hui, DUAN Longchen
2025,52(6):15-25, DOI: 10.12143/j.ztgc.2025.06.002
Abstract:
Drilling technology is pivotal in deep earth resource development and lunar exploration. The temperature fluctuations experienced by the bit under extreme working conditions such as dry drilling can lead to increased wear and potential failure of the bit. Therefore， analyzing the temperature rise mechanism is crucial for optimizing the drilling process and extending the life of the bit. Given the limitations of experimental methods in replicating extreme operational environments and the inherent simplifications in numerical simulations， constructing a theoretical model becomes essential to reveal the temperature rise behavior of the bit. This paper first analyzes the generation mechanisms of cutting force and cutting heat based on metal cutting theory， establishing a three-dimensional heat transfer differential model of the bit-rock-chip system. Subsequently， the temperature rise mechanisms of cemented carbide bits and PDC bits are compared from three perspectives： theoretical modeling， force analysis， and heat generation analysis. This comparison highlights the effectiveness of the model by simplifying the cutting structure and distinguishing between cutting and frictional heat. In contrast， the theoretical study of impregnated diamond bits has progressed more slowly due to the micro-cutting characteristics of diamond particles， dynamic changes in the height of the cutting edge， and uncertainties in the contact area. To develop a more adaptable thermodynamic model， future research should employ multi-physics coupling methods， incorporating rock properties， drill bit material properties， and dynamic operating parameters.
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TIAN Yu, LI Zhijun, TANG Weixu, YU Yijia
2025,52(6):26-33, DOI: 10.12143/j.ztgc.2025.06.003
Abstract:
Borehole wall collapse and other issues frequently occur during drilling in complex fractured formations. To prevent such accidents and improve core recovery， wireline coring drilling is commonly used， which requires solid-free drilling fluids with excellent anti-collapse performance. The STJ plant gum drilling fluid is an environmentally friendly solid-free drilling fluid； however， the filter cake formed by it is sparse， which fails to meet the requirements of borehole wall protection. Aiming at the problem of sparse filter cake of the STJ plant gum drilling fluid， this study took the STJ plant gum drilling fluid as the base fluid， combined with the ideal packing theory， and employed research methods such as laboratory experiments and microscopic analysis to optimize the selection of filling materials and their proportions， as well as to investigate the filter cake strengthening mechanism of the plant gum drilling fluid. Experimental results indicate that the solid-free drilling fluid formulated with 2% STJ+3% YT-1+2% YT-2+3% YT-3 exhibits a significant reduction in filtration loss. The filter cake formed by this drilling fluid is denser and flatter， and its borehole wall protection performance is greatly enhanced. Micron-sized filling materials form a dense filter cake through particle gradation， which is consistent with the ideal packing theory. This research provides an environmentally friendly and efficient solution for drilling in complex formations.
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NIE Kaiwen, QU Lili, WANG Yuan, ZHANG Pengyu, LEI Jiang
2025,52(6):34-41, DOI: 10.12143/j.ztgc.2025.06.004
Abstract:
In geotechnical engineering investigations， obtaining high-quality undisturbed soil samples through drilling is crucial， with the core objective being to minimize sample disturbance. This study addresses the issue of drilling fluid erosion and disturbance on soil samples during the drilling and sampling process. Based on a bottom-hole model of a core bit， numerical simulations were conducted using Fluent software. The research reveals that the erosion of soil samples by drilling fluid advances in a stepwise manner over time， extending from the upper part of the sample toward the bottom， and can be divided into three typical erosion zones. Under varying drilling fluid viscosities and flow rates， the degree of erosion at both the upper and bottom parts of the sample is significantly greater than that in the middle section. Specifically， the erosion range at the upper part expands toward the middle as viscosity and flow rate increase， while the erosion range at the bottom increases with higher flow rates but decreases with higher viscosity. Overall， an increase in soil sample permeability， a reduction in drilling fluid viscosity， and an elevation in flow rate all significantly enhance the erosion effect， with the most severe erosion occurring at the bottom of the sample. This study elucidates the multi-parameter coupled erosion mechanism of the interaction between drilling fluid and soil， providing a quantitative basis for optimizing drilling fluid properties and drilling techniques， which is of great significance for improving the quality of undisturbed soil sampling and the reliability of engineering investigation data.
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WU Di, QIAO Mingzhao, LIANG Chenfan, KONG Lingrong, WANG Yu, ZHANG Kai
2025,52(6):42-51, DOI: 10.12143/j.ztgc.2025.06.005
Abstract:
Aiming at the serious wear problem of the wear band and casing friction pair of drill pipe joint during drilling in deep， ultra-deep and extra-deep wells， the bidirectional protection model of drill string and casing wear and friction reduction was established in this study. The bidirectional protection mechanism of diamond composite wear band and casing was proposed， and the tribological properties of diamond composite wear band materials were verified by experiments. This study systematically explained the wear resistance and friction reduction bidirectional protection mechanism of diamond composite wear band material. By constructing a drillstring-casing mechanical model containing rock axial reaction and contact load， the friction and wear testing machine independently developed was used to conduct experiments， and the friction coefficient， wear amount and wear morphology characteristics were compared and analyzed under different working conditions. Combined with Raman spectroscopy， the mechanism of surface tribochemical reaction was revealed. The results show that through the synergistic effect of the hard phase support and self-lubrication， the friction coefficient of the diamond composite wear zone can be significantly reduced. The formed gradient composite protective layer and graphite transfer film can effectively achieve two-way protection between the drill pipe joint and the casing surface. The research results provide theoretical support and experimental basis for the structural optimization of wear band of drill pipe joints in deep wells.
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GAO Xuefei, YANG Peng, WANG Lei, LIN Chunyang
2025,52(6):52-59, DOI: 10.12143/j.ztgc.2025.06.006
Abstract:
To elucidate the governing principles of flow distribution within a single-branch pipe under laminar flow， this paper presents a comprehensive investigation combining theoretical analysis and numerical simulation. Grounded in the principle assumption of pressure drop equilibrium in parallel pipelines， a theoretical expression for the flow rate ratio was deduced by integrating the Darcy-Weisbach equation with the laminar flow constitutive relation. This expression establishes a quantitative correlation， indicating that the flow distribution is proportional to the fourth power of the pipe diameter and inversely proportional to its length. The robustness of the theoretical model was rigorously examined via CFD simulations under diverse geometric parameters and injection flow conditions. The results demonstrated a maximum discrepancy of below 5% between simulated and theoretical values， thereby affirming the model’s practical utility for engineering applications. Furthermore， it was concluded that the flow distribution ratio is an intrinsic property dictated exclusively by geometric parameters， showing insensitivity to the injection flow rate. The findings herein offer a robust theoretical underpinning for the structural optimization of branch wells， and the proposed methodology is extensible to more complex， multi-branch pipeline networks. Subsequent research will be directed towards turbulent models and dynamic flow processes to enhance the model’s universality.
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ZENG Peihua, YAN Haibing, LIU Qiang, ZHANG Zuohong, MA Yong, ZHANG Jianxin, LIU Huazhi
2025,52(6):60-66, DOI: 10.12143/j.ztgc.2025.06.007
Abstract:
To address the challenge of poor cementing quality caused by low filter cake removal efficiency under large-diameter borehole annulus conditions with low return velocity， this study employs a high-temperature， high-pressure dynamic cleaning apparatus to evaluate the effectiveness of active flushing fluid. Experimental investigations focus on three key parameters： mixing ratio， flushing velocity， and formation permeability， with particular emphasis on enhancing slurry strength， improving flushing efficiency， and promoting interfacial bonding strength at the second interface， moreover， scanning electron microscopy analysis was conducted to examine the cement-formation interface after flushing. The results are as follows： （1） the active flushing system achieves over 100% improvement in slurry strength compared to conventional flushing fluids； （2） with 95% filter cake removal efficiency， the active system shows significantly superior performance compared to water-based and conventional flushing systems； （3） after different velocity simulation， the active flushing fluid achieves over 90% flushing efficiency under low-velocity. The field applications confirm that the active flushing system effectively enhances both slurry strength and secondary interfacial bonding quality， thereby substantially improving cementing quality in large-diameter wells， indicating promising practical potential.
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KOU Yihang, QU Lili, ZHAO Yan, FENG Haoxin, SUN Siyuan, JIA Rui
2025,52(6):67-76, DOI: 10.12143/j.ztgc.2025.06.008
Abstract:
Aiming at the key technical bottleneck of low cold source utilization rate in natural gas hydrate hole-bottom freezing sampler， an optimization scheme using heat pipes to enhance heat transfer was proposed. A sampling device test bench was built to conduct indoor experiments on gas hydrate core freezing， and study the effect of heat pipes optimized heat transfer between the cold storage mechanism and the freezing mechanism. Combined with the numerical simulation of heat transfer， the role of heat pipes in the sampler was further analyzed to explore the effects of different initial temperatures of cold sources and core lengths on the freezing effect of the freezing mechanism under the working condition of marine hydrate coring. The research results show that optimizing the structure with the heat pipe makes the temperature distribution of the core more uniform， increases the cold source utilization rate by 31.59%， and the core freezing rate by 42.21%. The use of heat pipes to strengthen heat transfer enhances the freezing effect of the natural gas hydrate hole-bottom freezing sampler， which is of positive significance for promoting the engineering application of the hole-bottom freezing sampler and breaking the monopoly of foreign countries on hydrate sampling technology.
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LI Fenglin, WANG Hanchang, XIN Zongcheng, WU Jinsheng, LUO Xianliang, ZHANG Guangxi
2025,52(6):77-85, DOI: 10.12143/j.ztgc.2025.06.009
Abstract:
With the upgrading and transformation of the national energy strategy， the western region has become a key carrier for hydropower project construction. There is an urgent need for detailed exploration of the geological characteristics in the construction areas to support the efficient planning and construction of hydropower projects. Aiming at issues in this region such as unclear lateral lithological and geological characteristics， and inaccurate description of fault distribution， the long-distance horizontal wire-line coring drilling technology was adopted for detailed exploration of the construction areas. By selecting advanced equipment and tools， formulating reasonable and efficient drilling process technologies， and establishing a set of key technologies for long-distance horizontal wire-line coring， the goal of detailed investigation of the geological characteristics and structures in the exploration area was achieved. Taking the engineering geological exploration of a project in the western region as an example， the key technology system for long-distance horizontal wire-line coring was applied. The results showed that the average drilling speed of the hole was 3.61 m/h， the monthly efficiency per rig reached 422.42 m/rig-month， the core recovery rate of the whole hole was as high as 94.92%， the error between the drilled hole angle and the designed value was only 0.1%， and the azimuth of the hole fluctuated within ±1° of the designed value. Field application indicates that the key technology of long-distance horizontal wire-line coring directional drilling proposed in this study has good application value for engineering exploration in the western region and can provide technical support for the exploration and development of complex geological areas.
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CHEN Yunlong, ZHAO Yi, RUAN Hailong, LIU Xielu, LIU Hailong, SUO Yongbing
2025,52(6):86-90, DOI: 10.12143/j.ztgc.2025.06.010
Abstract:
With the development of national resources exploration into the deep sea， it is necessary to obtain the deep sea stratum core.At present，mature coring tools have been developed for seabed sediments， soft and hard alternating strata， etc.However， there are still some technical barriers for shallow soft sand layer.On the basis of the existing TKP194-80 sealed pressure holding principle，the projecting conformal core bit is designed specifically，the ball valve structure is optimized，transparent liner and a check valve are added，the ball valve turn-over conformal coring tool is formed.The coring tool has the characteristics of small disturbance to sand layer， blockage prevention， etc，the test was successfully carried out in the shallow soft sand layer of ultra-deepwater oil and gas at 1500m in the South China Sea，the coring footage was 5.50m， the recovered sand core length was 5.00m， and the core recovery rate reached 90.91%.It breaks through the technical difficulties of coring ultra-deepwater shallow soft sand layer，it can provide key technical support for the exploration and development of ultra-deepwater oil and gas resources.
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YAO Ke, SONG Haitao, ZHANG Youzhen, HAN Jian, FANG Peng, PENG Guangyu, SHA Cuicui, LIU Qi, WANG Song, XING Wang
2025,52(6):91-96, DOI: 10.12143/j.ztgc.2025.06.011
Abstract:
The construction of gas drainage boreholes in underground coal mines currently faces challenges such as low automation， poor process controllability， high safety risks， high labor intensity， and low production efficiency. Automation and intelligence represent the core development direction for safety in coal mine production. Driven by the industry’s requirements for reducing personnel， increasing efficiency， enhancing safety， and lowering costs in gas drainage operations， this study investigates the technology of full-process， multi-machine collaborative automated drilling for conventional boreholes. The research team conducted an in-depth analysis of the functional requirements of core processes， including drilling construction， cuttings removal， screen pipe installation， and pressurized grouting. Based on this analysis， a complete automated construction model and technical solution were proposed. This solution aims to guide on-site operations， enabling the sequential and linear automated execution of each process with a limited personnel configuration， thereby significantly reducing the number of operators， lowering labor intensity， and upgrading the intelligent monitoring system for the entire process. By establishing and implementing standardized operational procedures and specifications， this technology has successfully replaced traditional operational models. Preliminary field trials have verified its effectiveness， demonstrating significant achievements in personnel reduction and reduction in labor intensity. However， for broader application and promotion， continuous improvement is still required to further enhance key performance indicators of the integrated equipment system， such as reliability， stability， and drilling efficiency.
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2025,52(6):97-103, DOI: 10.12143/j.ztgc.2025.06.012
Abstract:
Hydraulic punching to enhance permeability is an effective means of strengthening gas governance in soft and low-permeability coal seams. In response to the problems of poor permeability of coal seams， low gas extraction rate of drill hole， and long extraction cycles in the Huaibei mining area， integrated drilling， hydraulic punching and protection technology for permeability enhancement has been proposed. Research on the integrated drilling， punching and protection device has been carried out. With the use of this device， matched with large hole triangular spiral drill rods and on-off type drill bit， the integrated construction process of drilling hole， hydraulic punching for permeability enhancement， and screen pipe completion is achieved. The entire process of this technology only requires one drilling， and experiments have been carried out in Yangliu mine， and successfully drilling 29 holes. The experimental results show that the integrated drilling， punching and protection technology can achieve the integrated construction of drilling， hydraulic drilling， and screen pipe protection， avoiding the need for secondary drill pipe run for screen pipe completion， effectively improving the overall construction efficiency. After hydraulic punching through the coal section， the average volume of coal flushing reached 1.1m3/m， and the average hole diameter reached 0.93~1.0m， greatly improving the permeability enhancement effect in fragmented soft coal seams.
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HUANG Siyuan, ZHOU Lincong, LIU Yiwei, WANG Bin, LI Zonghao
2025,52(6):104-110, DOI: 10.12143/j.ztgc.2025.06.013
Abstract:
To investigate the mechanical properties of the pile-soil interface， this study addresses the limitations of conventional direct shear tests in inadequately accounting for the curved surface morphology and actual roughness of pile bodies by designing a novel direct shear test apparatus capable of simulating the curved surface morphology and roughness characteristics of engineering piles. The apparatus features a nested dual-shear box configuration， wherein independent control of normal stress and tangential displacement is achieved through the synergistic operation of a bolt loading system in the upper shear box and a hydraulic actuation unit in the lower shear box. Using field-measured data， curved-surface concrete pile models were fabricated using spatial model scanning technology and 3D printing techniques， and direct shear tests were conducted on silty clay to systematically analyze the effects of moisture content， interface roughness of the curved surface， and normal stress on the mechanical properties of the pile-soil interface. Experimental results demonstrate that the interfacial bearing capacity exhibits a biphasic trend （initially increasing and subsequently decreasing） with rising moisture content， significantly increases with interface roughness， and shows a positive correlation with normal stress， all of which align with practical engineering conditions. These findings validate the applicability and scientific rigor of the apparatus design， demonstrating its practical engineering significance.
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XIONG Zhengqiang, ZOU Zhifei, ZHENG Yuxuan, YUAN Baohong
2025,52(6):111-115, DOI: 10.12143/j.ztgc.2025.06.014
Abstract:
The problem of lost circulation occurs frequently during geothermal well exploration and development， especially the irreversible loss of geothermal reservoir， seriousely affecting the wellbore stability and drilling efficiency. Geothermal Well DR2024 is located in Xining City， Qinghai Province， which is a geothermal producting well. When drilling to the non-target geothermal reservoir well section of 714~759m， the irreversible loss occurred， where the water gushing and lost circulation exist at the same layer. The drilling fluid while drilling containing composite plugging material fails to plug. After the green self-degradable crosslinked gel was used for 3 times for plugging， the slurry can return to the wellhead and good plugging effect was obtained. Furthermore， the application feasibility and practicability of green self-degradable crosslinked gel for geothermal reservoir plugging was preliminarily verified. The gel is composed of gelling agent， retarder and crosslinker， which has the characteristics of simple formula， self-degradation， environmental friendly， controllable gelation time， adjustable self-degradable time and strong water insulation property. It has broad application prospects in geothermal reservoir plugging. The successful experience in this paper can provide reference for similar geothermal drilling project.
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YU Fu’an, LIU Weiping, FENG Meigui, LI Xiaodong, PENG Boyi, SUN Jianyue, ZHU Yingchang, QIN Zhendong
2025,52(6):116-121, DOI: 10.12143/j.ztgc.2025.06.015
Abstract:
The waste flushing fluids generated during geological drilling operations often contain pollutants such as cuttings and various chemical treatments. These pollutants are characterized by high chromaticity， high chemical oxygen demand （COD）， and high suspended solids. If directly discharged， they will have an impact on the surrounding soil， water quality， organisms， and other aspects of the environmental ecology. With the in-depth implementation of the concept of green exploration in the field of geological drilling， the diaphragm press waste slurry treatment device has emerged and played an important role.This article mainly introduces the TGYG-type diaphragm press waste slurry treatment device， which is designed based on the concept of a small skid-mounted modular structure. The waste slurry is pumped into the filter chamber composed of diaphragm plates and filter plates by a feeding pump. After the waste flushing fluid fills the filter chamber， the hydraulic system pushes the diaphragm to apply pressure to the waste flushing fluid in the filter chamber. Under the action of pressure， the filtrate passes through the filter cloth and is discharged through the drainage channels on the filter plates， while the solid-phase particles are retained in the filter chamber， thus achieving solid-liquid separation.During the medium-deep hole geological drilling operations in the Zhumadian area， Henan Province， on-site applications of harmless treatment of waste flushing fluids were carried out. The liquid content in the separated solid phase was reduced to less than 20%， greatly reducing the volume and mass of the waste flushing fluids， which effectively reduces environmental pollution， promotes the recycling of resources， provides valuable practical experience for the harmless treatment of waste flushing fluids in geological drilling， and can effectively assist the full implementation of green exploration work in the new round of strategic actions for mineral prospecting breakthroughs.
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YU Fu’an, LIU Weiping, FENG Meigui, LI Xiaodong, PENG Boyi, SUN Jianyue, ZHU Yingchang, QIN Zhendong
2025,52(6):116-121, DOI: 10.12143/j.ztgc.2025.06.015
Abstract:
The waste flushing fluids generated during geological drilling operations often contain pollutants such as cuttings and various chemical treatments. These pollutants are characterized by high chromaticity， high chemical oxygen demand （COD）， and high suspended solids. If directly discharged， they will have an impact on the surrounding soil， water quality， organisms， and other aspects of the environmental ecology. With the in-depth implementation of the concept of green exploration in the field of geological drilling， the diaphragm press waste slurry treatment device has emerged and played an important role.This article mainly introduces the TGYG-type diaphragm press waste slurry treatment device， which is designed based on the concept of a small skid-mounted modular structure. The waste slurry is pumped into the filter chamber composed of diaphragm plates and filter plates by a feeding pump. After the waste flushing fluid fills the filter chamber， the hydraulic system pushes the diaphragm to apply pressure to the waste flushing fluid in the filter chamber. Under the action of pressure， the filtrate passes through the filter cloth and is discharged through the drainage channels on the filter plates， while the solid-phase particles are retained in the filter chamber， thus achieving solid-liquid separation.During the medium-deep hole geological drilling operations in the Zhumadian area， Henan Province， on-site applications of harmless treatment of waste flushing fluids were carried out. The liquid content in the separated solid phase was reduced to less than 20%， greatly reducing the volume and mass of the waste flushing fluids， which effectively reduces environmental pollution， promotes the recycling of resources， provides valuable practical experience for the harmless treatment of waste flushing fluids in geological drilling， and can effectively assist the full implementation of green exploration work in the new round of strategic actions for mineral prospecting breakthroughs.
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LI Bingle, WU Jinsheng, FANG Yong, ZHUANG Shengming, LUO Xianliang
2025,52(6):122-127, DOI: 10.12143/j.ztgc.2025.06.016
Abstract:
The Northern Tashidaban Lithium Mining Area is located in the Kunlun-Altyn Mountains. Characterized by complex geological structures， it lies in an alpine region with deeply incised terrain and large topographic relief， making the relocation of drilling equipment extremely difficult. The ore layers in this mining area have steep dips. To implement the concept of “green exploration”， horizontal and near-horizontal directional boreholes are mainly used in drilling operations to reduce equipment relocation and protect the ecological environment. To address the issue that core samples obtained during coring drilling cannot accurately capture formation information （such as formation attitude， fracture width， and weak interlayers） due to factors like fractured formations， discontinuous coring， and human differences in core logging， a self-developed multi-parameter all-directional cableless logging system was adopted for full-hole panoramic imaging of horizontal boreholes. This study overcame technical challenges by developing a calculation method for formation structural planes based on horizontal borehole panoramic imaging. Additionally， a cableless storage and drill pipe pushing method was used to solve the problem that testing instruments cannot be lowered in deep horizontal boreholes. During the lowering process of the logging system， high-definition， continuous， complete， and in-situ photos of the borehole wall were acquired. Through image processing technology， “electronic cores” were generated， from which information such as formation lithology， fractures， weak interlayers， karst features， and rock layer thickness can be clearly and intuitively obtained. This enables accurate measurement and calculation of formation structural plane parameters， realizing detailed exploration， improving the quality of drilling operations， and effectively supporting the digital transformation of mineral exploration breakthroughs.
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2025,52(6):128-135, DOI: 10.12143/j.ztgc.2025.06.017
Abstract:
Aiming at the rock-breaking challenges of the Xujiahe Formation in the Xinchang-Heqingchang Block， such as high formation hardness， poor drillability， strong abrasiveness， and significant heterogeneity， this study established a drilling resistance characteristic parameter profile of the Xujiahe Formation. It conducted an analysis of the engineering requirements for the target interval and typical bit failure modes. Combined with research on the rock-breaking characteristics of different types of cutter， the study optimized the cutter arrangement pattern and proposed a “circular + wedge-shaped” double-row planar mixed cutter arrangement structure. Through bit force analysis， the crown profile， blade structure， and gauge protection structure were optimally designed to form a cutting structure with “high guidance + force balance stability”. Finally， a customized PDC bit for the difficult-to-drill formations of the Xujiahe Formation was developed. Field application results show that the average rate of penetration （ROP） reaches 4.88 m/h， increased 41%； the average run length reaches 347.16 m， increased 104%. This provides a new technical means for breaking through the drilling speed bottleneck of the tight sandstone gas reservoir in the second member of the Xujiahe Formation in the Xinchang-Hexingchang Block.
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2025,52(6):136-141, DOI: 10.12143/j.ztgc.2025.06.018
Abstract:
With the rapid development of China’s construction industry， some super high-rise buildings with potential safety hazards or failure to meet functional requirements need to be demolished. If such projects are located in urban central areas， traditional demolition methods （such as mechanical demolition and blasting demolition） can hardly meet the requirements of green environmental protection and protective demolition of retained structures. A project in Tianjin involves the demolition and reconstruction of 4 super high-rise buildings over 100 meters in height. The diamond tool （wire saw and thin-walled drill） drilling and cutting technology was adopted for the demolition， which completely overcame the drawbacks of traditional demolition methods. It fully demonstrated the advantages of diamond drilling and cutting technology in terms of high efficiency， safety， environmental protection， energy saving， and non-destructiveness， successfully completing the construction task and gaining unanimous recognition from the owner and the public. The relevant key technical achievements can provide a reference for similar super high-rise building demolition projects.
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JIANG Chunxiao, WANG Zhifeng, LIU Zhi, YIN Sheng, BU Huahua, WANG Dong, ZOU Jian, WAN Peng
2025,52(6):142-151, DOI: 10.12143/j.ztgc.2025.06.019
Abstract:
The QC team （Quality Control Team）， serves as the specific implementation carrier for quality control and an effective organizational form， enabling employees to participate in enterprise management. It plays a role in stimulating employees’ enthusiasm and creativity， enhancing their professional literacy and collaborative capabilities， and improving the overall management level. As an indispensable and crucial component of production management， safety management has long been plagued by the disconnect between management and execution due to issues such as organizational structure barriers， inadequate communication mechanisms， and imbalances in incentives and accountability. This disconnect leads to failures in fulfilling safety responsibilities， repeated occurrence of potential safety hazards， and frequent safety accidents in production. Taking geological drilling as an example， this paper proposes establishing QC teams， holding regular activity meetings， and applying quality management theories and methods such as cause-and-effect diagram and the Deming Cycle （PDCA Cycle）. A series of improvement measures are adopted to continuously strengthen employees’ awareness of safety responsibilities， refine the details of system implementation， consolidate and enhance the effectiveness of education and training， and improve the quality and efficiency of supervision and inspection. While reducing the incidence of production safety accidents and economic losses， these measures further enhance the standardization and proceduralization of safety management， resulting in a significant improvement in the safety management level.
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2025,52(6):159-164, DOI: 10.12143/j.ztgc.2025.06.023
Abstract:
《钻探工程》2025年第52卷总目次
