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黄202井区微地震深井监测适应性研究及应用
Research and Application of Down Hole Microseismic Monitoring Adaptability in Huang 202 Well Area  [PDF]
王刚, 倪根生, 李豪, 马路, 唐建, 秦俐, 康亮
Advances in Geosciences (AG) , 2021, DOI: 10.12677/AG.2021.118107
Abstract: 微地震监测是压裂裂缝成像的关键技术，近年来随着石油行业对于非常规油气资源的重视以及为了低渗透油气藏增产而进行压裂施工的有关需求的增长，微地震监测已经成为地球物理界一种重要的技术。随着页岩气勘探开发的不断深入，储层埋深由早期约3000 m的垂深逐渐增加4000 m以下，对微地震监测效果产生了一定的影响，如何优化监测方案，提升监测效果，促进页岩气资源的有效开发，是目前微地震监测面临的首要难题，而不同监测方式的适应性成为关键因素。本文以四川盆地黄202井区为例，利用微地震深井监测数据，开展与3500 m以浅微地震深井监测成果对比分析，为该地区下步4000 m以深页岩气压裂监测方案选择提供指导，对提升监测效果、支撑改善储层压裂增产作业效果具有重要的价值和实践意义。
Microseismic monitoring is a key technology for fracture imaging. In recent years, as the petro-leum industry attaches importance to unconventional oil and gas resources and the demand for fracturing construction to increase production of low-permeability oil and gas reservoirs have increased, microseismic monitoring has become an important geophysical technology in the world. With the continuous deepening of shale gas exploration and development, the vertical depth of the reservoir gradually increased from about 3000 m to below 4000 m, which has a certain impact on the effect of microseismic monitoring. How to optimize the monitoring plan, improve the monitoring effect, and promote the effective development of shale gas resources is currently the primary problem, then the adaptability of different monitoring methods has become a key factor. This paper takes the Huang 202 well area in the Sichuan Basin as an example, and use the down hole microseismic monitoring data to carry out comparative analysis with the down hole monitoring results of wells which are below 3500 m, and provide guidance for the monitoring plan of shale gas wells for over 4000 m in this area. The monitoring effect and the effect of increasing production have important value and practical significance.
数智化技术赋能深层页岩气效益开发路径研究
Research on the Profitable Development Path of Deep Shale Gas Empowered by Digital Intelligence Technology  [PDF]
汪刚, 李俏静, 孙玉平, 段希宇, 肖科
Sustainable Development (SD) , 2024, DOI: 10.12677/SD.2024.142036
Abstract: 中国深层页岩气资源丰富，是天然气增储上产的重要领域，实现效益开发对促进能源结构转型、保障国家能源安全具有战略意义。本文在对深层页岩气开发进程和潜力进行总体性描述的基础上，系统分析了深层页岩气效益开发所面临的机遇与挑战，聚焦于数智化技术在油气勘探开发中的应用实践，提出了数智化技术赋能深层页岩气效益开发的基本路径。研究发现：数智化技术对科技人才培育、勘探开发、生产管理和成本控制具有关键作用，数智化技术通过提高勘探和生产的智能水平，降低成本，将有利于深层页岩气效益开发目标的实现，具体体现在数智化技术可以通过重构科技人才培育体系、优化勘探开发过程、提升生产管理效能和降低开发成本来实现深层页岩气效益开发。
China is rich in deep shale gas resources and is an important area for increasing natural gas re-serves and production. Realizing profitable development is of strategic significance for promoting the transformation of energy structure and ensuring national energy security. Based on an overall description of the development process and potential of deep shale gas, this article systematically analyzes the opportunities and challenges faced by the profitable development of deep shale gas, focuses on the application practice of digital intelligence technology in oil and gas exploration and development, and proposes the basic path for digital intelligence technology to empower the prof-itable development of deep shale gas. The study found that digital intelligence technology plays a key role in the cultivation of scientific and technological talents, exploration and development, pro-duction management and cost control. By improving the intelligence level of exploration and pro-duction and reducing costs, digital intelligence technology will be beneficial to the profitable devel-opment goals of deep shale gas. Realization is embodied in the fact that digital intelligence technol-ogy can realize the profitable development of deep shale gas by reconstructing the scientific and technological talent training system, optimizing the exploration and development process, improv-ing production management efficiency and reducing development costs.
深层页岩气等温吸附数学模型研究
Isothermal Adsorption Mathematical Model of Deep Shale Gas  [PDF]
蒋葵霖, 邹昊男, 杨周潘, 曲政翰
Journal of Oil and Gas Technology (JOGT) , 2024, DOI: 10.12677/jogt.2024.462017
Abstract: 我国深层页岩气储量占比大，明确深层页岩气吸附规律对于准确评价深层页岩气储量具有十分重要的意义。然而，深层页岩储层温度压力高，远超实验测试范围，导致深层页岩气吸附规律尚不清楚。因此，采用分子模拟技术构建深层页岩干酪根模型，模拟深层页岩甲烷高温高压吸附行为，揭示深层页岩气储层原位吸附规律，在此基础上，研究了深层页岩气等温吸附数学模型。结果表明：随着温度的增加，深层页岩气吸附量减少；随着压力的增加，深层页岩气吸附量呈现先快后慢的增加，并在高压段趋于平缓；通过采用Langmuir模型、Freundlich模型以及Langmuir-Freundlich模型对模拟数据进行拟合，明确了Langmuir-Freundlich模型能够更好描述深层页岩气吸附规律。
Deep shale gas reserves account for a large proportion in China. It is of great significance to clarify the adsorption law of deep shale gas for accurate evaluation of deep shale gas reserves. However, the high temperature and pressure of deep shale reservoirs far exceed the experimental test range, leading to the unclear adsorption law of deep shale gas. Therefore, a deep shale kerogen model was constructed by molecular simulation technology to simulate the adsorption behavior of methane in deep shale at high temperature and high pressure, and to reveal the in-situ adsorption law of deep shale gas reservoirs. On this basis, the isothermal adsorption mathematical model of deep shale gas was studied. The results show that with the increase of temperature, the adsorption amount of deep shale gas decreases, and with the increase of pressure, the adsorption amount of deep shale gas increases first fast and then slowly, and tends to be flat in the high pressure section. By using the Langmuir model, Freundlich model and Langmuir-Freundlich model to fit the simulated data, it is clear that the Langmuir-Freundlich model can better describe the adsorption law of deep shale gas.
考虑经济成本下的川南深层页岩气井距优化
Optimization of Spacing for Deep Shale Gas Wells in Southern Sichuan Considering Economic Cost  [PDF]
帅尧, 周新诞
Open Journal of Nature Science (OJNS) , 2025, DOI: 10.12677/ojns.2025.131011
Abstract: 深层页岩气是页岩气勘探开发重要的战略接替领域，设计并优化井距获取最大经济效益，对其勘探开发具有十分重要的指导意义。基于经济效益优化水平井压裂关键参数，为井距优化设计提供设计基础。通过数值模拟方法，采用正交试验方法对水力压裂缝参数研究，确定单一裂缝参数最优参数范围，获得变水力裂缝参数设计最优方案。研究结果如下：(1) 结合经济净现值，通过数值模拟的方法优化水平井距参数，得到该区块最优井距为300米；(2) 基于水平井距300米的开发方案，得到最优裂缝参数为：采取交叉式布缝，半缝长155米，缝高为55 m，裂缝导流能力为0.2 D？cm；(3) 基于该区块裂缝参数优化模拟结果，推测层厚较薄、区块范围较广的深层页岩气区块，可以考虑适当牺牲缝高参数条件获取更长的半缝长参数，获取更高产量和经济效益。
Deep shale gas is an important strategic replacement field for shale gas exploration and development. Designing and optimizing well spacing to obtain maximum economic benefits is of great guiding significance for its exploration and development. Based on the economic benefits, the key parameters of horizontal well fracturing are optimized, which provides the design basis for the optimization design of well spacing. Through the numerical simulation method, the orthogonal test method is used to study the hydraulic fracture parameters, determine the optimal parameter range of single fracture parameters, and obtain the optimal design scheme of variable hydraulic fracture parameters. The research results are as follows : (1) Combined with the economic net present value, the horizontal well spacing parameters are optimized by numerical simulation, and the optimal well spacing in this block is 300 meters; (2) Based on the development plan of 300 m horizontal well spacing, the optimal fracture parameters are obtained as follows: cross-type fracture arrangement, half-fracture length of 155 m, fracture height of 55 m, fracture conductivity of 0.2 mD·cm; (3) Based on the simulation results of fracture parameters optimization in this block, it is inferred that for deep shale gas blocks with thin layer thickness and wide block range, longer half-length parameters can be obtained by appropriately sacrificing fracture height parameters, so as to obtain higher production and economic benefits.
四川盆地A地区页岩孔隙度预测及主控因素分析
Shale Porosity Prediction and Analysis of Main Controlling Factors in Area A of Sichuan Basin  [PDF]
邢亚冰, 王仲旭, 吴欣雨
Advances in Geosciences (AG) , 2025, DOI: 10.12677/ag.2025.154034
Abstract: 孔隙度是深层页岩储层含气性评价及有利区优选的关键参数。为评估LightGBM算法在深层页岩储层孔隙度预测评价中的适用性，选取四川盆地A地区五峰组–龙马溪组深层页岩储层实测孔隙度为标签以及GR等7个测井参数为特征，建立基于LightGBM算法的孔隙度预测评价模型。研究结果表明：LightGBM算法模型的孔隙度评价精度及泛化能力(R2 = 0.979, RMSE = 0.622, MAPE = 31.5%)优于多元回归算法模型，能够精确地评价纵向上孔隙度变化规律；建立的LightGBM算法模型对深层页岩储层中孔隙度评价具有良好的适用性，为深层页岩含气性预测提供了新的思路，并明确研究区孔隙度主要受到TOC及黏土含量的共同控制。
Porosity is a key parameter for evaluating gas bearing properties of deep shale reservoirs and selecting favorable areas. In order to evaluate the applicability of LightGBM algorithm in the prediction and evaluation of deep shale reservoir porosity, the measured porosity of deep shale reservoir in Wufeng Formation and Longmaxi Formation in area A of Sichuan Basin was selected as the label and 7 logging parameters such as GR were featured, and a porosity prediction and evaluation model based on LightGBM algorithm was established. The results show that the porosity evaluation accuracy and generalization ability of LightGBM algorithm model (R2 = 0.979, RMSE = 0.622, MAPE = 31.5%) are superior to the multiple regression algorithm model, and can accurately evaluate the longitudinal porosity variation law. The established LightGBM algorithm model has good applicability to the evaluation of porosity in deep shale reservoirs, providing a new idea for the prediction of gas content in deep shale reservoirs, and it is clear that the porosity of the study area is mainly controlled by TOC and clay content.
吴家坪组深层页岩井壁稳定性与三压力预测研究
Study on Wellbore Stability and Three-Pressure Prediction in Deep Shale of the Wujiaping Formation  [PDF]
王强, 宋洪琛, 张支立
Mine Engineering (ME) , 2025, DOI: 10.12677/me.2025.136157
Abstract: 为解决吴家坪组深层页岩气钻井中井壁坍塌频发、三压力预测精度不足的技术难题，通过岩心力学实验、已钻井测井数据分析及多模型融合深度学习方法，构建“地层特征–压力系统–智能预测”一体化研究体系。结果表明：1) 吴家坪组页岩非均质性强，同一露头岩心单轴抗压强度差异达51.0 MPa (86.9~137.9 MPa)，钻井液浸泡1天后强度降幅超50%，强脆性破坏导致微裂隙发育加剧坍塌风险；2) 已钻井(大页1井、大201井、大页1H2-4井)吴家坪组上覆岩层压力当量密度2.60~2.65 g/cm3，孔隙压力峰值1.80~2.24 g/cm3，水平地应力方位集中于N90？E~N100？E，大页1井吴一段~吴二段存在“漏垮共存”风险(坍塌压力上限 > 2.50 g/cm3、漏失压力下限 ≈ 2.0 g/cm3)；3) 基于18项测井特征构建的深度神经网络(DNN)模型，在大页1H1-1井训练集上孔隙压力预测R2达0.996 (RMSE = 0.31 MPa)，引入梯度提升树、XGBoost、LightGBM等多模型融合(加权平均 + 堆叠集成)后，大页1H2-1井预测误差显著降低，孔隙压力误差0.27%、坍塌压力误差8.19%、破裂压力误差3.62%，较单纯神经网络分别降低0.27%、4.03%、1.32%。研究成果为川中地区吴家坪组特定井(大页1井、大201井、大页1H2-4井等)深层页岩气安全钻井液密度窗口设计与高效钻井提供关键技术支撑，其模型适用范围限于研究区域内目标层段。
In order to solve the technical problems of frequent borehole collapse and insufficient prediction accuracy of three pressures in deep shale gas drilling in Wujiaping formation, an integrated research system of “formation characteristics pressure system intelligent prediction” was established through core mechanics experiment, well logging data analysis and multi model fusion in-depth learning method. The results show that: 1) the heterogeneity of Wujiaping formation shale is strong, the difference of uniaxial compressive strength of the same outcrop core is 51.0 MPa (86.9~137.9 MPa), and the strength decreases by more than 50% after soaking in drilling fluid for 1 day. The strong brittle failure leads to the development of microcracks and exacerbates the risk of collapse; 2) The pressure equivalent density of the overlying strata of the Wujiaping formation in the drilled wells (Daye 1 well, Daye 201 well and Daye 1h2-4 well) is 2.60~2.65 g/cm3, the peak pore pressure is 1.80~2.24 g/cm3, the horizontal in-situ stress is concentrated in N90？E-N100？E, and there is a risk of “leakage and collapse” in the wuyi-wuii section of Daye 1 well (the upper limit of collapse pressure > 2.50 g/cm3, and the lower limit of leakage pressure ≈ 2.0 g/cm3); 3) The depth neural network (DNN) model based on 18 logging characteristics predicted the pore pressure of 0.996 (RMSE = 0.31 MPa) in the training set of Daye 1h1-1 well. After introducing the gradient lifting tree, XGBoost, LightGBM and other multi model fusion (weighted average + stack integration), the prediction error of Daye 1h2-1 well was significantly reduced,
川南龙马溪组深层页岩现今地应力场特征
Characteristics of Current In-Situ Stress of the Longmaxi Formation Deep Shale, Southern Sichuan Basin  [PDF]
罗彬
Journal of Oil and Gas Technology (JOGT) , 2026, DOI: 10.12677/jogt.2026.481003
Abstract: 页岩气应力场特征的分析评价是深层页岩气勘探开发的重要环节，对压裂预测走向和井网部署具有重要指导意义。四川盆地储藏大量页岩气，由于页岩气储层孔隙度和渗透率较低，需要通过水力压裂技术实现页岩气效益开发，而岩石力学参数和地应力特征是影响裂缝扩展的重要因素。以川南页岩气储层龙马溪组龙-11小层为研究对象，结合室内实验和现场测井资料，计算岩石力学参数，分析单井地应力大小、方向。结果表明，岩石动态杨氏模量介于33.6~47.1 GPa，动态泊松比介于0.20~0.23，明确静态杨氏模量为39.4~46.9 GPa，静态泊松比为0.25~0.28，动静态参数具有良好的线性关系。利用组合弹簧模型计算单井最大水平主应力97~115 MPa，最小水平主应力77~99 MPa，垂向应力86~106 MPa，地层主要呈走滑应力状态σH > σV > σh；单井地应力方向NE向(100？~120？)为主，岩石力学参数和地应力特征的研究为油气勘探开发提供了可靠的技术支撑。
The analysis and evaluation of stress field characteristics constitute a critical component of deep shale gas exploration and development, providing essential guidance for fracture prediction and well pattern deployment. Shale in the Sichuan Basin is widespread and shale gas resources are abundant. Due to low porosity and low permeability of shale reservoirs, the hydraulic fracturing is a key technology for the benefits development of shale gas resources. Rock mechanical parameters and in-situ stress significantly influence fracture propagation. This study focuses on the Long-11 small layer in southern Sichuan basin. Integrating laboratory experiments and field logging data, we calculated rock mechanical parameters and analyzed individual well stress characteristics. The results indicate that the dynamic Young’s modulus of is 33.6~47.1 GPa, with a dynamic Poisson’s ratio is 0.20~0.23. Static Young’s modulus is 39.4~46.9 GPa, and static Poisson’s ratio is 0.25~0.28, showing a good linear relationship between dynamic and static rock mechanical parameters. Using the combined spring model, the maximum horizontal principal stress was calculated at 97~115 MPa, with minimum horizontal principal stress at 77~99 MPa and vertical stress at 86~106 MPa. The stress regime primarily exhibited strike-slip (σHmax > σV > σhmin), with the maximum horizontal principal stress orientation being northeast (100？~120？). The study of rock mechanics parameters and in-situ stress characteristics provide reliable technical support for oil and gas exploration and development.
威荣气田深层页岩气压裂井中微地震监测技术
Downhole Microseismic Monitoring Technology for Hydraulic Fracturing in Deep Shale Gas Wells in WeiRong Gas Field  [PDF]
张正玉, 吴晓光, 刘兴春, 缪祥禧, 吴家安, 樊靖宇, 李德才, 赵翔
Advances in Geosciences (AG) , 2023, DOI: 10.12677/AG.2023.131003
Abstract: 井中微地震监测技术是目前诊断评价页岩气体积压裂的最有效技术手段，在页岩气田开发过程中发挥着重要作用。威荣深层页岩气田储层埋藏深度3500~3850米，目的层地温最高达140℃以上，在页岩气井水力压裂的整个过程中，耐高温且能够持续长时间稳定工作的三分量检波器成为了威荣气田页岩气井体积压裂监测的主要技术难题。通过研制自主知识产权的高温井下微地震监测仪，仪器在井下138℃条件下长时间工作状态稳定，资料品质高，满足威荣地区高温监测要求，在1925米的最远有效监测空间距离上依然能够拾取明显的微地震事件特征信号。通过现场处理解释技术能够实时提供压裂缝网的空间几何参数扩展及动态变化，用于现场评估和指导压裂施工。通过压后精细解释技术，可获取压裂缝网展布特征，进行压裂体积计算，暂堵效果分析、压裂缝与天然裂缝发育特征及关系研究、套管变形预警分析等研究工作。已在威荣气田威页3X平台、4X平台、4Y平台完成了10口井70余层段的水力压裂监测，为压裂施工效果评估、后续压裂设计调整、开发方案优化及井距调整等工作提供了技术参考。
Borehole microseismic monitoring technology is the most effective technical mean to diagnose and evaluate shale gas volume fracturing, which plays an important role in the development of shale gas field. The buried depth of WeiRong deep shale gas field is 3500~3850 m, and the ground temperature of the target layer is up to 140？C. In the whole process of hydraulic fracturing ofshale gas wells, three-component geophones that are resistant to high temperature and can workstably for a long time have become the main technical problem of volume fracturing monitoring ofshale gas wells in Weirong Gas Field. Through the development of high temperature underground microseismic monitoring instrument with independent intellectual property rights, the instrument works stably for a long time under the condition of 138？C underground, with high data quality, meeting the requirements of high temperature monitoring in WeiRong area, and can still pick up obvious characteristic signals of microseismic events at the farthest effective monitoring space distance of 1925 m. The field data processing and interpretation technology can provide real-time expansion and dynamic change of space geometric parameters of hydraulic fracture network, which can be used for field evaluation and guidance of hydraulic fracture operation. Through the fine interpretation technology after hydraulic fracturing, the distribution characteristics of fracture network can be obtained, and the fracturing volume calculation, temporary plugging effect analysis, development characteristics and relationship between hydraulic fractures and natural fractures, early warning analysis of casing deformation and other research work can be carried out. The microseismic monitoring of more than 70 layers in 10 wells has been completed in Weiye-3X platform, -4X platform and -4Y platform of WeiRong gas field, which provides technical reference for hydraulic fracturing evaluation, subsequent fracturing design adjustment, gas field development scheme optimization and well spacing adjustment.
基于微地震监测的深层页岩储层压裂效果评价
Evaluation of Fracturing Effectiveness in Deep Shale Reservoirs Based on Micro-Seismic Monitoring  [PDF]
缪祥禧, 赵翔, 吴晓光
Journal of Oil and Gas Technology (JOGT) , 2024, DOI: 10.12677/jogt.2024.462021
Abstract: 威荣气田五峰–龙马溪组优质页岩储层埋深普遍超过3500米，属于深层页岩气范畴，威荣深层页岩具有“一深、两低、三高”的特点，一深：储层埋藏深；两低：低脆性、低裂缝发育程度；三高：高温、高应力、高应力差，导致压裂难以形成复杂裂缝、难以形成裂缝有效支撑。模拟表明，压裂裂缝有效率为28.7%~44.5%，平均42.8%实践表明开发效果并不理想，为准确评价储层压裂效果，评估现有压裂工艺的适用性，气田开发过程中开展了井中微地震监测，利用监测数据开展缝网展布特征分析、压裂体积计算、暂堵效果评价及天然裂缝发育情况分析等研究，成果为威荣气田压裂效果综合评价、压裂设计调整、开发方案优化等工作提供了技术参考。
The buried depth of the high-quality shale reservoirs in the Weirong Gas Field’s Wufeng-Longmaxi Formation generally exceeds 3500 meters, belonging to the category of deep shale gas. The deep shale of Weirong Gas Field has the characteristics of “one deep, two lows, and three highs”. One deep refers to the deep burial of the reservoir; two lows refer to low brittleness and low fracture development; three highs refer to high temperature, high stress, and high stress difference, which makes it difficult to form complex fractures and difficult to effectively support the fractures. Simulation shows that the effective rate of fracturing fractures is 28.7%~44.5%, with an average of 42.8%. Practice shows that the development effect is not ideal. To accurately evaluate the fracturing effect of the reservoir and assess the applicability of the existing fracturing technology, micro-seismic monitoring in the well was carried out during the development of the gas field. The monitoring data was used to analyze the characteristics of fracture network distribution, calculate the fracturing volume, evaluate the temporary plugging effect, and analyze the development of natural fractures. The results provide technical references for the comprehensive evaluation of fracturing effects, adjustment of fracturing designs, and optimization of development plans in the Weirong Gas Field.
深层页岩气开发项目集成管理模式研究
Research on the Integrated Management Mode of Deep Shale Gas Development Project  [PDF]
汪刚, 凌子茹, 徐焕焕, 肖科, 李健, 刘媛铭
Sustainable Development (SD) , 2024, DOI: 10.12677/sd.2024.147204
Abstract: 本文探讨了深层页岩气开发项目集成管理的理论与实践，重点关注了系统集成理论的应用和多主体、多业务交叉的管理策略。面对深层页岩气勘探开发工程的整体复杂性挑战，本文强调了集成化管理在提升效率和优化决策中的关键性作用。系统集成理论融入到深层页岩气勘探开发项目管理将有利于促进参与各方信息的有效整合和资源共享，促进技术创新和破解环境约束。本文提出的多主体合作与多业务交叉的管理策略，旨在协调各参与方的利益，促进协同创新，确保项目的顺利进行。本文研究发现：系统集成理论与管理策略相结合是实现深层页岩气高效开发成功的关键，集成化管理模式为我国深层页岩气效益开发提供了理论支持和实践指导，有助于推动能源行业的可持续发展。
This paper discusses the theory and practice of integrated management of deep shale gas development projects, focusing on the application of system integration theory and the management strategy of multi-agent and multi-business intersection. Faced with the overall complexity challenges of deep shale gas exploration and development projects, this paper emphasizes the key role of integrated management in improving efficiency and optimizing decision-making. The integration of system integration theory into the project management of deep shale gas exploration and development projects will help promote the effective integration of information and resource sharing among all parties involved, promote technological innovation and solve environmental constraints. The management strategy of multi-agent cooperation and multi-business intersection proposed in this paper aims to coordinate the interests of all participants, promote collaborative innovation, and ensure the smooth progress of the project. This paper finds that the combination of system integration theory and management strategy is the key to the success of efficient development of deep shale gas, and the integrated management model provides theoretical support and practical guidance for the benefit development of deep shale gas in China, which is helpful to promote the sustainable development of the energy industry.
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