Drilling Technology of the M-1 Well in Hot Dry Rock of Matouying,Tangshan北大核心CSCD   总被引：1，自引：0，他引：1  

张云  高亮  刘现川  赵岩  王德  张建永 《地质与勘探》2022,58(1):176-186

This paper presents the general situation and key techniques of the drilling well M-1 in Matouying dry hot rock exploration hole, Leting, Tangshan, Hebei Province. A series of problems have been studied on the sea water drilling fluid, high temperature resistant fresh water drilling fluid, screw composite drilling technique, screw hole coring technology, and high temperature, thus solving the difficulty of sea water drilling fluid well protection, poor stability of drilling fluid under high temperature, and low efficiency in hot dry rock drilling and coring drilling to ensure the safety of the borehole and improve drilling efficiency. The high temperature resistant double condensation and double density cement slurry system and relevant technical measures are adopted to ensure the quality of cementing in the high temperature environment. Through the understanding and analysis of the strata in this area, this work provides valuable experience for drilling in the same strata in the future. The final hole depth of the M-1 well in Matouying is 4502. 11m, and hot dry rock with a temperature of 150t is found at 3965 m, which is the first hot dry rock well with a temperature of more than 150°C in the Beijing-Tianjin-Hebei region so far. © 2022 Editorial Board of Geology and Exploration. All rights reserved.  相似文献   

造山型金矿中富CO_(2)高内压流体包裹体完全均一温度的有效测定实验研究——以东天山玉峰金矿床为例SCIEI北大核心CSCD     

于立栋  李胜虎  张静  何西恒  于学峰  单伟  迟乃杰 《岩石学报》2022,38(1):267-280

形成于中-深成条件下的造山型金矿的成矿流体属于H_(2)O-NaCl-CO_(2)体系,金矿化阶段的石英中发育大量的富CO_(2)流体包裹体。长期以来,用常规冷热台对其进行显微测温热力学研究时,较高的内压力会造成绝大多数CO_(2)充填度>0.4的包裹体在尚未达到完全均一状态前就发生爆裂或泄露,导致所测的完全均一温度值明显偏离真实值,甚至无法测得完全均一温度,这制约了对造山型金矿床成矿条件的认知。针对该问题,本文以东天山玉峰金矿床富金矿石中的H_(2)O-NaCl包裹体(A型)和H_(2)O-NaCl-CO_(2)包裹体(AC型)为研究对象,介绍了利用最新型热液金刚石压腔(HDAC-VT型号)测试富CO_(2)高内压的AC型包裹体完全均一温度的实验流程与结果,并将实验数据与Linkam THMSG600冷热台测得的A型、AC型包裹体的完全均一温度进行了对比分析。实验结果表明,热液金刚石压腔能够有效阻止富CO_(2)流体包裹体在升温过程中发生爆裂、泄露等非弹性体积改变现象的发生,从而获得有效的完全均一温度。同时,本文还提出了一个新的压力-温度拟合线两线相交法,对热液金刚石压腔所测富CO_(2)流体包裹体的完全均一温度数据进行校正,以最大程度上减少外压力造成的影响,获得更为接近真实成矿流体的完全均一温度。基于此,获得玉峰金矿床的成矿温度和成矿压力分别为312~343℃和181~268 MPa。本文的实验研究工作显示了热液金刚石压腔在中-深成造山型金矿富CO_(2)成矿流体的研究领域具有重要应用前景。  相似文献   

内蒙古迪彦钦阿木斑岩钼矿床成矿流体的出溶、演化及对成矿的制约     

崔凯  李腊梅  吴皓然  王兴源  王信  廉永  谢玉玲 《岩石矿物学杂志》2022,41(6):1120-1134

迪彦钦阿木钼矿床位于内蒙古东乌旗地区,矿区侵入岩不发育,主要为细粒正长岩和基性岩脉,矿体主要发育在侏罗纪火山岩中,少量发育在细粒正长岩中,主要矿化类型为细网脉状、脉状、浸染状,具有斑岩型矿化特征。矿区的细粒正长岩中可见含矿石英-钾长石囊团或由之构成中心相的热液脉体,是岩浆-流体转化过程的直接证据。本文在详细岩相学观察的基础上,对石英-钾长石囊团中主要组成矿物开展了阴极发光图像分析,对石英、萤石中流体包裹体开展了显微测温实验,并借助SEM/EDS、显微激光拉曼探针、LA-ICP-MS等手段对包裹体成分进行了系统分析,基于以上实验结果对岩浆流体的出溶过程、出溶流体特征及矿质沉淀机制进行了探讨。研究结果表明,矿区钼成矿与细粒正长岩岩浆出溶流体有关;富F和挥发分造成成矿岩浆具有低的固相线温度和较低的黏度,因此成矿岩浆可以沿断裂快速上侵到地壳浅部;岩浆上侵过程中的减压沸腾可能是流体出溶的主要机制;早期出溶流体为富F和富CO₂的中高温(227~457℃)、中低盐度[w(NaCl_eq)=0.3%～8.6%]流体,由于快速减压造成流体沸腾形成低盐度富CO₂的气相和高盐度液相,沸腾引起的CO₂逃逸可能是矿质沉淀的主要原因。  相似文献   

PVA1788成膜体系无固相冲洗液在桂柳地1井的应用          下载免费PDF全文

苏力才  蒙学礼  李永卫  王嘉瑶  李明星  付帆 《探矿工程》2022,49(5):57-63

桂柳地1井为广西柳州市鱼峰区雒容镇区块页岩气地质调查井,设计井深2350 m,钻遇水敏性地层等复杂地层。为了提高无固相冲洗液在页岩气复杂地层深孔钻进中维持孔壁稳定的能力,在PVA1788体系无固相冲洗液的基础上,添加成膜A剂、封堵剂GFD-1等处理剂。根据冲洗液试验及现场应用,成膜A剂具有降失水功能,不影响冲洗液的润滑性能,对粘度影响不明显,该PVA1788成膜体系无固相冲洗液滤失量较低,封堵裂隙效果好,减弱了地层水化膨胀,提高了成膜抑制防塌能力,满足了桂柳地1井深孔复杂地层维护孔壁稳定、安全钻进的需要。对类似复杂地层无固相冲洗液的推广应用具有参考价值。  相似文献   

山西干热岩GR1井高温固井技术研究与实践          下载免费PDF全文

郤一臻  赵福金  荆京  祁国华  张勃 《探矿工程》2022,49(6):42-47

固井质量对干热岩后期开发利用具有重要意义。针对山西大同盆地干热岩勘查井GR1井温度高、高温固井水泥浆技术体系不完善等问题,通过研究勘查区地质特征,提出了高温固井水泥浆技术体系开发思路。研究表明：干热岩高温固井水泥浆水胶比控制为0.45,优选添加剂高温降失水剂CG82L、高温缓凝剂H40L、高温稳定剂CF40L、消泡剂GX-1、硅粉及HV-PAC,形成一套适用于山西干热岩井的高温固井水泥浆技术体系。该水泥浆体系在GR1井成功应用,现场固井质量良好,研究成果为今后同类型高温固井工作提供了宝贵经验和技术支撑。  相似文献   

琼东南盆地中生界潜山天然气成藏模式     

甘军  季洪泉  梁刚  何小胡  熊小峰  李兴 《现代地质》2022,36(5):1242-1253

琼东南盆地基底潜山勘探面临地质年代不清、储层非均质性强及成藏条件复杂等难题。通过开展区域大地构造演化、基底锆石测年、潜山储层描述及成藏动力分析,明确潜山储层发育区及有利成藏区。研究表明,在印支运动、燕山运动及喜山运动叠加控制下,松南低凸起、陵南低凸起大面积发育印支期的花岗岩潜山储层,平面上北西、北东及近东西向三组断裂、裂缝交错切割成网,纵向上形成的风化带-裂缝带总厚度超300 m的双层结构,明确裂缝储层发育的关键因素为脆性矿物和双向流体改造。基于早渐新世古地貌及烃源岩沉积模拟实验研究,提高了崖城组陆源海相烃源岩TOC分布预测精度,明确了中央坳陷优质烃源灶分布规律。综合分析潜山-古近系储层、构造脊展布和崖城组烃源灶的时空配置关系,建立了“松南低凸起源外高潜山天然气长距离侧向有限运聚模式”及“陵南低凸起源边低潜山近距离高效运聚模式”,提出源边低潜山的L26-B是下步勘探的有利目标。  相似文献   

Process and Mechanisms of Deep Fluid Effects on Hydrocarbon Generation and Pore Space in Shale: A Case Study from the Mesoproterozoic Xiamaling Formation in the Zhaojiashan Section     

MENG Qingqiang  PANG Qian  HU Guang  JIN Zhijun  ZHU Dongy  LIU Jiayi  ZHANG Chuanwen 《《地质学报》英文版》2022,96(4):1342-1352

Heat carried by deep fluid might greatly affect hydrocarbon generation and pore space in shale. Dyke intrusion carrying high levels of heat may be a means by which to explore the influence of deep fluid on shale reservoirs. This study evaluates hydrocarbon generation and analyzed the evolution of shale storage space in the third member of the Xiamaling Formation in the Zhaojiashan section, Hebei Province, based on experimental data such as TOC, SEM, VRo, low-temperature N2 adsorption and high-pressure mercury injection. The results show that the dyke intrusion reduced the shale TOC content drastically―by up to 77%―and also induced instantaneous hydrocarbon generation over a range about 1.4 times the thickness of the intrusion. Furthermore, the dyke intrusion might transform organic pores in surrounding shales into inorganic pores. There were two shale porosity peaks: one appeared when VRo = 2.0%, caused by the increase of organic pores as thermal maturity increased, the other occurred when the VRo value was between 3% and 4%, caused by the increase of inorganic mineral pores. It can be concluded that dyke intrusion can be an effective tool with which to study how deep fluid affects instantaneous hydrocarbon generation and pore space in shale.  相似文献   

Differential Thermal Regimes of the Tarim and Sichuan Basins in China: Implications for Hydrocarbon Generation and Conservation     

CHANG Jian  LI Dan  QIU Nansheng  ZHU Chuanqing  ZHONG Ningning  FENG Qianqian  ZHANG Haizu  WANG Xiang 《《地质学报》英文版》2022,96(4):1308-1322

The uncertainty surrounding the thermal regimes of the ultra-deep strata in the Tarim and Sichuan basins, China, is unfavorable for further hydrocarbon exploration. This study summarizes and contrasts the present-day and paleo heat flow, geothermal gradient and deep formation temperatures of the Tarim and Sichuan basins. The average heat flow of the Tarim and Sichuan basins are 42.5 ± 7.6 mW/m2 and 53.8 ± 7.6 mW/m2, respectively, reflecting the characteristics of ‘cold’ and ‘warm’ basins. The geothermal gradient with unified depths of 0–5,000 m, 0–6,000 m and 0–7,000 m in the Tarim Basin are 21.6 ± 2.9 °C/km, 20.5 ± 2.8 °C/km and 19.6 ± 2.8 °C/km, respectively, while the geothermal gradient with unified depths of 0–5,000 m, 0–6,000m and 0–7,000 m in the Sichuan Basin are 21.9 ± 2.3 °C/km, 22.1 ± 2.5 °C/km and 23.3 ± 2.4 °C/km, respectively. The differential change of the geothermal gradient between the Tarim and Sichuan basins with depth probably results from the rock thermal conductivity and heat production rate. The formation temperatures at depths of 6,000 m, 7,000 m, 8,000 m, 9,000 m and 10,000 m in the Tarim Basin are 80°C–190°C, 90°C–220°C, 100°C–230°C, 110°C–240°C and 120°C–250°C, respectively, while the formation temperatures at depths of 6,000 m, 7,000 m, 8,000 m and 9,000 m in the Sichuan Basin are 120°C–200°C, 140°C–210°C, 160°C–260°C and 180°C–280°C, respectively. The horizontal distribution pattern of the ultra-deep formation temperatures in the Tarim and Sichuan basins is mainly affected by the basement relief, fault activity and hydrothermal upwelling. The thermal modeling revealed that the paleo-heat flow in the interior of the Tarim Basin decreased since the early Cambrian with an early Permian abrupt peak, while that in the Sichuan Basin experienced three stages of steady state from Cambrian to early Permian, rapidly rising at the end of the early Permian and declining since the late Permian. The thermal regime of the Sichuan Basin was always higher than that of the Tarim Basin, which results in differential oil and gas generation and conservation in the ultra-deep ancient strata. This study not only promotes theoretical development in the exploration of ultra-deep geothermal fields, but also plays an important role in determining the maturation phase of the ultra-deep source rocks and the occurrence state of hydrocarbons in the Tarim and Sichuan basins.  相似文献   

全球典型被动陆缘盆地油气成藏特征     

刘延莉  刘静静 《世界地质》2022,(1)

以被动陆缘油气富集理论为指导,通过研究南大西洋和印度洋被动陆缘盆地油气地质条件,分析油气差异富集因素。研究结果表明:被动陆缘盆地主要发育3套含油气系统,其中印度洋地区主要发育克拉通陆内裂谷期含油气系统,裂陷期含油气系统,漂移期含油气系统。南大西洋地区主要发育裂陷期含油气系统,漂移早期含油气系统和漂移晚期含油气系统。根据不同油气成藏特征,总结为10类成藏模式,不同成藏模式发育背景和成藏主控因素各异。为被动陆缘盆地不同构造沉积演化阶段油气勘探方向提供研究基础,对相关或类似盆地勘探研究提供借鉴。  相似文献   

天津平原区加油站地下水石油烃污染特征及其生物降解机理研究     

刘学娜  李海明  李梦娣  章卫华  肖瀚 《地学前缘》2022,29(3):227-238

加油站地下水中石油烃污染是较为普遍的现象,本文对研究区位于不同水文地质条件的加油站地下水进行取样分析,分析加油站地下水中石油烃的污染特征和地下水化学类型特征,并运用因子分析、相关性分析和多元回归分析揭示加油站地下水中石油烃潜在的生物降解机制。研究结果表明,地下水化学类型主要可划分为Cl-Na型、HCO₃-Na型、HCO₃-Ca型和SO₄-Na型4类。加油站地下水中石油烃的检出率为85.71%,检出浓度为0.020.35 mg/L。因子分析结果表明影响地下水化学组成的因素主要以水-岩相互作用和石油烃的生物降解为主。TPH与地下水化学指标间的相关关系表明:TPH与K⁺、Na⁺、Cl^-、Mn、Mg²⁺、 {\mathrm{SO}}_4^{2-}呈现负相关的关系,与pH值、 {\mathrm{HCO}}_3^{-}、 {\mathrm{NO}}_3^{-}、 {\mathrm{NO}}_2^{-}、Ca²⁺、Fe不存在显著的相关关系。加油站地下水环境中可能存在嗜盐或耐盐微生物,导致随着盐度的升高,总石油烃(total petroleum hydrocarbon,TPH)生物降解率加快,TPH浓度呈现出降低的趋势。微生物利用电子受体( {\mathrm{SO}}_4^{2-}、Mn、 {\mathrm{NO}}_3^{-}、Fe)降解TPH的过程中,电子受体的贡献率为:铁还原(64.88%)>锰还原(24.86%)>硫酸根还原(5.78%)>硝酸盐还原(4.46%),即加油站地下水中铁锰还原菌的石油烃生物降解为优势反应。  相似文献