关于钻井工艺及井筒工作液关键技术论文集。发表时间区间为2016年7月-2021年5月，地点为北京。油基钻井液中更易发生气体扩散侵入，伴随油基钻井液使用的增多，有必要研究气体扩散侵入的机理并建立气体扩散侵入定量计算模型。将气体扩散侵入通道划分为气体与滤液界面、滤液滞留区、内滤饼区、外滤饼区、外滤饼区内壁与钻井液界面5个部分，在分析气体扩散侵入机理的基础上，推导了井筒内气体扩散侵入控制方程及解析解。基于解析解，给出了气体扩散侵入参量（循环工况气体侵入速率、循环工况井筒内气体总量、静止工况气体最大浓度、静止工况井筒内气体总量）的定量计算公式。结合算例分析，得到了储层长度、储层孔隙度、钻井液滤失对气体扩散侵入的影响规律。除了静止工况最大气体浓度外，气体扩散侵入参量与储层长度成线性关系。
", "ds_source": "多次模拟实验，得出研究结果，撰写论文。
", "ds_process_way": "气液界面、滤液区、内外滤饼等处的质量传递，建立了总质量传递系数表达式。提出了钻井井筒气体扩散侵入控制方程，并给出了不同工况下控制方程的解析。
", "ds_quality": "数据质量良好。
", "ds_acq_start_time": "2016-07-01 00:00:00", "ds_acq_end_time": "2021-05-01 00:00:00", "ds_acq_place": "北京市", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 15796964, "ds_files_count": 9, "ds_format": "pdf", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "5446c4cf-8eb0-4403-b6b2-38a42cb9759a.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "aaf309a1-cdf4-4049-be08-c06f80c4061f", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.SRIPE.db1711.2022", "subject_codes": [ "170.50" ], "quality_level": 3, "publish_time": "2022-02-25 11:49:14", "last_updated": "2025-05-28 11:36:52", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.SRIPE.db1711.2022", "i18n": { "en": { "title": "Collection of Research Papers on Key Technologies of Drilling Processes and Wellbore Working Fluids (2016-2021)", "ds_format": "pdf", "ds_source": "Conducted multiple simulation experiments, obtained research results, and wrote papers.
", "ds_quality": "Good data quality.
", "ds_ref_way": "", "ds_abstract": "Collection of Research Papers on Key Technologies of Drilling Processes and Wellbore Working Fluids\nPublished between July 2016 and May 2021, Beijing. Gas diffusion and intrusion are more prone to occur in oil-based drilling fluids. With the increasing use of oil-based drilling fluids, it is necessary to study the mechanism of gas diffusion and intrusion and establish a quantitative calculation model for the same. The gas diffusion and intrusion pathways are divided into five parts: the gas-filtrate interface, the filtrate retention zone, the inner filter cake zone, the outer filter cake zone, and the interface between the inner wall of the outer filter cake zone and the drilling fluid. Based on the analysis of the mechanism of gas diffusion and intrusion, the control equations and analytical solutions for gas diffusion and intrusion within the wellbore are derived. Based on the analytical solutions, quantitative calculation formulas for gas diffusion and intrusion parameters (such as gas intrusion rate under circulating conditions, total gas volume in the wellbore under circulating conditions, maximum gas concentration under static conditions, and total gas volume in the wellbore under static conditions) are provided. Combined with case study analysis, the influence laws of reservoir length, reservoir porosity, and drilling fluid filtration loss on gas diffusion and intrusion are obtained. Except for the maximum gas concentration under static conditions, the gas diffusion and intrusion parameters have a linear relationship with the reservoir length.\n
", "ds_time_res": "", "ds_acq_place": "Beijing", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Mass transfer at the gas-liquid interface, filtrate zone, inner and outer filter cakes, etc., has been studied, and an expression for the total mass transfer coefficient has been established. The control equation for gas diffusion and intrusion in drilling wellbores is proposed, and analytical solutions for the control equation under different operating conditions are provided.
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "冻土层", "低温固井水泥浆", "低温钻井液", "大位移井" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "北京" ], "ds_time_tags": [ 2016, 2017, 2018, 2019, 2020, 2021 ], "ds_contributors": [ { "true_name": "高德利", "email": "gaodeli@cup.edu.cn", "work_for": "中国石油大学（北京）", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "王宴滨", "email": "wangyanbin@cup.edu.cn", "work_for": "中国石油大学（北京）", "country": "中国" } ], "ds_managers": [ { "true_name": "高德利", "email": "gaodeli@cup.edu.cn", "work_for": "中国石油大学（北京）", "country": "中国" } ], "category": "其他" }