关于冻土层安全钻井技术专利集（10件），针对项目研究的创新成果，项目组人员申请了10件发明专利，主要专利内容描述：
（1）固井水泥浆低温稠化仪，实现室温环境下对水泥浆低温稠化性能的测试，防止低温水泥浆在室温下稠度测试过程中数据失真或过快凝固；
（2）负温固井水泥浆高速搅拌器，防止低温水泥浆搅拌过程中快速凝固，实现室温环境下对低温水泥浆的配制；
（3）土粉研磨筛分机，用于岩土力学实验制样用的小型土样研磨筛分机，其具有结构简单，操作方便，易清理等特点；
（4）固井水泥浆低温失水仪，有效解决负温环境下常规水泥浆由于液相分凝结冰导致水泥不固化无强度，低温冻土区固井质量差甚至完全无法进行固井作业的问题，满足冻土区固井施工需求；
（5）冻土层钻井阻热防融装置，满足冻土区域中深井钻井对套管隔热的要求；
（6）冻土地区的固井方法，够在冻土层区域实现有效阻热，保证冻土以下地层钻进时冻土不发生冻融，确保固井安全；
（7）冻土岩芯制备装置和方法，通过对松散冻土施加不同的压制力以模拟不同的冻土层深度，经过反算可以确定土体的孔隙度、含水量、含水饱和度等一系列参数，得到正确合理的岩心土水比并制备饱和的冻土岩心。
", "ds_source": "自主研发。
", "ds_process_way": "通过对松散冻土施加不同的压制力以模拟不同的冻土层深度，经过反算可以确定土体的孔隙度、含水量、含水饱和度等一系列参数，得到正确合理的岩心土水比并制备饱和的冻土岩心。
", "ds_quality": "数据质量较好。
", "ds_acq_start_time": "2016-07-01 00:00:00", "ds_acq_end_time": "2020-12-31 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": 4120037, "ds_files_count": 10, "ds_format": "pdf", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "751543b0-4373-4bdd-a993-b09beb38e15f.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.db1694.2022", "subject_codes": [ "170.50" ], "quality_level": 3, "publish_time": "2022-02-25 11:49:07", "last_updated": "2025-05-28 11:38:38", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.SRIPE.db1694.2022", "i18n": { "en": { "title": "Collection of Patents on Research of Key Technologies for Drilling Processes and Borehole Operating Fluids", "ds_format": "pdf", "ds_source": "ndependently Developed.
", "ds_quality": "The data quality is relatively good.
", "ds_ref_way": "", "ds_abstract": "Collection of Patents on Safe Drilling Technologies in Permafrost Regions (10 Patents), focusing on the innovative achievements of the project research, the project team has applied for 10 invention patents. The main patent content descriptions are as follows:
(1) Low-Temperature Thickening Instrument for Cement Slurry in Cementing: This instrument enables the testing of the low-temperature thickening performance of cement slurry at room temperature, preventing data distortion or rapid solidification during the thickness test of low-temperature cement slurry at room temperature;
(2) High-Speed Mixer for Negative-Temperature Cement Slurry in Cementing: This mixer prevents rapid solidification of low-temperature cement slurry during mixing, enabling the preparation of low-temperature cement slurry at room temperature;
(3) Soil Powder Grinding and Sieving Machine: This is a small-sized soil sample grinding and sieving machine used for sample preparation in geotechnical mechanics experiments. It features a simple structure, easy operation, and ease of cleaning;
(4) Low-Temperature Water Loss Instrument for Cement Slurry in Cementing: This instrument effectively solves the problem of cement not solidifying and lacking strength due to the freezing of the liquid phase of conventional cement slurry in negative-temperature environments. It addresses issues such as poor cementing quality in low-temperature permafrost areas or even the inability to perform cementing operations, meeting the needs of cementing construction in permafrost areas;
(5) Heat-Resistant and Anti-Melting Device for Drilling in Permafrost Layers: This device meets the requirements for casing insulation during medium-deep well drilling in permafrost areas;
(6) Cementing Method in Permafrost Areas: This method effectively resists heat in permafrost areas, ensuring that the frozen soil does not undergo freeze-thaw cycles during drilling in the layers below the permafrost, thus ensuring the safety of cementing;
(7) Device and Method for Preparing Frozen Soil Cores: This device applies different compressive forces to loose frozen soil to simulate different depths of frozen soil layers. Through inverse calculation, a series of parameters such as porosity, water content, and water saturation of the soil can be determined, allowing for the determination of a correct and reasonable soil-water ratio and the preparation of saturated frozen soil cores.
", "ds_time_res": "", "ds_acq_place": "Beijing", "ds_space_res": "", "ds_projection": "", "ds_process_way": "By applying different compressive forces to loose frozen soil to simulate different depths of frozen soil layers, a series of parameters such as porosity, water content, and water saturation of the soil can be determined through inverse calculation. This allows for the determination of a correct and reasonable soil-water ratio and the preparation of saturated frozen soil cores.
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "冻土层", "固井水泥浆", "流变性", "水泥浆性能优化" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "北京市" ], "ds_time_tags": [ 2016, 2017, 2018, 2019, 2020 ], "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": "牛成成", "email": "niucc.sripe@sinopec.com", "work_for": "中国石油化工股份有限公司石油工程技术研究院", "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" }