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Study on estimate method of wave velocity and quality fac-tor to fault seals

Science Bulletin 2005年第19期 125-130页

作者： LI Zhensheng1, LIU Deliang1, LIU Bo1, YANG Qiang1 & LI Jingming2.1. The School of Earth and Space Sciences, University of Science and Technology of china, Hefei 2.002., china 2. Research {2. of Petroleum exploration and development, Petro-china, langfang 065007, china

Based on ultrasonic test of fault rocks, the re-sponses for wave velocity and quality factor (Q value) to lithology, porosity and permeability of fault rocks and me-chanical property of faults are studied. In this paper, a new quantitative estimate method of fault seals is originally of-fered. The conclusions are as follows: (1) Wave velocity and Q value increase and porosity decreases with the increase in stress perpendicular to joint; (2. In compressive and com-presso-shear fault rocks that are obviously anisotropic com-pared with their original rocks, the wave velocity and Q value are greater in the direction parallel with foliation, and usually less perpendicular to it. In tensile and tenso-shear fault rocks that are not obviously anisotropic, the wave ve-locity and Q value are under that of original rocks; (3) In foliated fault rocks, the direction with minimal wave velocity and Q value is the best direction for sealing; on the contrary it is the best for flowing; (4) Structural factures develop mainly along foliation, the minimal wave velocity and Q value reflect the flowing capacity in parallel direction to fo-liation, and the maximal wave velocity as well as Q value reflect the sealing capacity in normal direction to foliation. The new estimate method is based upon contrast of wave velocity and Q value between fault rocks and their original rocks, and is divided into three parts that are respectively to identify rock’s lithology, to judge mechanic property of faults and to Judge sealing capacity of faults. Although there is vast scale effect between ultrasonic wave and seismic wave, they have similar regularity of response to fabric and porosity of faults. This research offers new application for seismic data and petrophysical basis for seismological estimation of fault seals. The estimate precision will be improved with the en-hancement of three-dimensional seismic prospecting work.

关键词： wave velocity quality factor fault seals anisotropy folia-tion.

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Bio-regeneration of p-complexation desulfurization adsorbents

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Science china Chemistry 2005年第6期48卷 538-544页

作者： LI Wangliang1,2. XING Jianmin1, XIONG Xiaochao1,2. SHAN Guobin1,2.& LIU Huizhou1 1. Laboratory of Separation Science and Engineering, institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, china 2. Graduate School of the Chinese Academy of Sciences,Beijing 100039, china 1. Laboratory of Separation Science and Engineering Institute of Process Engineering Chinese Academy of Sciences 100080 Beijing China 2. Graduate School of the Chinese Academy of Sciences 100039 Beijing China

The coupling of adsorption desulfurization and biodesulfurization is a new approach to produce clean fuels. Sulfur compounds are firstly adsorbed on adsorbents, and then the ad-sorbents are regenerated by microbial conversion. p-Complexation adsorbent, Cu(I)-Y, was ob-tained by ion exchanging Y-type zeolite with Cu2. and then by auto-reduction in helium at 450℃ for 3 h. Dibenzothiophene (DBT) was used as a model compound. The effects of cell concentra-tion, volume of oil phase, the ratio of aqueous phase to adsorbent on DBT desorption by a bac-terium were studied. The amounts of DBT desorbed and 2.HBP produced can be apparently increased with addition of n-octane. BDS activity can be improved by increasing cell concentra-tion and the ratio of water-to-adsorbent. 89% of DBT desorbed from the adsorbents can be converted to 2.HBP within 6 h and almost 100% within 2. h, when the volume ratio of oil-to-water was 1/5 mL/mL, the cell concentration was 60 g·L?1, and the ratio of adsorbent-to-oil was 0.03 g·mL?1. The amount of 2.HBP produced was strongly dependent on the volume ratio of oil-to- water, cell concentration and amount of adsorbent. Adsorption capacity of the regenerated ad-sorbent is 95% that of the fresh one after being desorbed with Pseudomonas delafieldii R-8, washed with n-octane, dried at 100℃ for 2. h and auto-reduced in He.

关键词： adsorption desulfurization p-complexation adsorbents bio-regeneration Pseudomonas delafieldii desorption.

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东北亚地区天然气资源状况与需求展望

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天然气工业 2003年第4期23卷 5-7页

作者：李小军李景明张福东魏伟中国石油勘探开发研究院廊坊分院

东北亚地区天然气资源丰富 ,其原始资源总量超过 2.2.0× 10 12.m3 ,主要集中在俄罗斯东部和中国。各地区的天然气需求差别很大 ,资源丰富的俄罗斯西西伯利亚地区天然气在能源结构中的比例高达 5 7.6 % ;油气资源匮乏的日本和韩国主要以... 详细信息

东北亚地区天然气资源丰富 ,其原始资源总量超过 2.2.0× 10 12.m3 ,主要集中在俄罗斯东部和中国。各地区的天然气需求差别很大 ,资源丰富的俄罗斯西西伯利亚地区天然气在能源结构中的比例高达 5 7.6 % ;油气资源匮乏的日本和韩国主要以LNG的形式由研究区域以外进口天然气 ,且主要用于发电和民用 ;拥有资源与利用市场的中国天然气则刚刚起步。文章在系统研究该地区天然气资源状况与需求现状的基础上 ,指出随着经济的发展与环保压力的增加 ,该地区 2.0 10年天然气利用将达 (2.737～ 3839)× 10 8m3 ,2.0 2.0年将达 (5 0 4 9～ 5 2.87)× 10 8m3 ,该地区的天然气利用在世纪之初将呈现旺盛的发展势头。

关键词：东北亚地区天然气资源状况资源需求

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中国天然气勘探形势及发展趋势

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天然气工业 2004年第12期24卷 1-4页

作者：李景明刘圣志李东旭马硕鹏中国科学院广州地球化学所中国石油勘探开发研究院廊坊分院

中国天然气比较丰富 ,目前天然气勘探处于早期阶段 ,天然气的发展空间非常大。文章从中国天然气的勘探开发现状分析入手 ,结合地质研究和技术进步的成果 ,预计中国未来 10年将发现一批大中型天然气田 ,天然气储量将快速增长 ,到 2.0 15... 详细信息

中国天然气比较丰富 ,目前天然气勘探处于早期阶段 ,天然气的发展空间非常大。文章从中国天然气的勘探开发现状分析入手 ,结合地质研究和技术进步的成果 ,预计中国未来 10年将发现一批大中型天然气田 ,天然气储量将快速增长 ,到 2.0 15年天然气探明可采储量将达到 4× 10 12.m3 ,天然气产量将达到 10 0 0× 10 8m3 。

关键词：中国天然气产量形势天然气储量发展空间预计发展趋势天然气勘探可采储量天然气田

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petrochina's Natural Gas exploration Clue in the Near Future

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china Oil & Gas 2002年第3期9卷 24-27页

作者： Li Jingming Chen Mengjin Li Dongxu and Zhang Fudong(langfang branch of Petroleum {2. and development Research institute) langfang branch of Petroleum {2. and development Research institute

petrochina's natural exploration Situationand Problemsexploration situationRecently natural gas development of petrochina Company Limited (hereinafter referred to as petrochina) was in good situation. Its natural gas ... 详细信息

关键词： petrochina’s Natural Gas exploration Clue in the Near Future

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THE CHARACTERISTICS OF REMOTE SENSING TECTONICS IN QIANGTANG-CHANGDU MASSIF, QINGHAI-TIBET PLATEAU

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地学前缘 2000年第S1期7卷 435-437页

作者： Zhao Zhengzhang 1,Ye Hefei 2.Li Yongtie 2.1 china National Petroleum Corporation, Beijing 10072.,china 2.Research {2. of Petroleum exploration and development, CNPC, Beijing 100083,china)

The northern Tibet plateau is the core of generalized Qinghai—Tibet plateau. The main part of Qiangtang—Changdu massif, which is 45×10 4km 2.and more than 5000m in altitude, conforms to the northern Tibet plateau in area.1 The shape features and boundary conditions of Qiangtang—Changdu massif\;(1) Qiangtang—Changdu massif shows huge flat\|lying “S” area In MSS7 mosaic image, Qiangtang—Changdu massif extends in west and east, and appears a long\|elliptic huge block composed of feathered and dendritic textures.. Noticeably, there are two similar texture “tails" in the west and east ends of the massif. The western tail turns and constringes to the north, and eastern tail to the south. Thereby, the massif shows huge “S" area. According to the regional analysis, the eastern tail locates between Shaluli Mt.\|Taniantaweng Mt. and Mujiang River, and western part through Bangong\|Co connects with Pamirs along Karakoram Mt. In regional tectonics, the massif locates between Lazhulong\|Xijinwulan\|Co\|Jinshajiang River and Bangong\|Co\|Dongqiao\|Nujiang River fault belts.

关键词： Qiangtang—Changdu massif remote sensing boundary condition circular structure deformin g features mechanic characteristic dynamics

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Limitation of fault-sealing and its control on hydrocarbon accumulation——An example from the Laoyemiao Oilfi eld of the Nanpu Sag

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Petroleum Science 2008年第4期5卷 295-301页

作者： Jiang Zhenxue Dong Yuexia Li Hongyi Liu Luofu Liu Guangdi Li Xiaoying Basin and Reservoir Research Center China University of Petroleum Beijing 102249 China State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Research institute of exploration and {2. Jidong Oilfield PetroChina Tangshan Hebei 063004 China School of Resources and Information Technology China University of Petroleum Beijing 102249 China

Based on previous studies on the internal structures of fault belts, the fault belts in the Laoyemiao Oilfield of the Nanpu Sag can be divided into three units, a crushed zone, an upper induced fracture zone and a lower induced fracture zone according to the log response characteristics. The upper induced fracture zone is characterized by the development of pervasive fractures and has a poor sealing or non-sealing capability. It therefore can act as pathways for hydrocarbon migration. The lower induced fracture zone consists of fewer fractures and has limited sealing capability. The crushed zone has a good sealing capability comparable to mudstone and can thus prevent lateral migration of fluid. Through physical modeling and comparing laboratory data with calculated data of oil column heights of traps sealed by faults, it is concluded that the fault-sealing capability for oil and gas is limited. When the oil column height reaches a threshold, oil will spill over from the top of reservoir along the lower induced fracture zone under the action of buoyancy, and the size of reservoir will remain unchanged. Analysis of the formation mechanisms of the fault-sealed reservoirs in the Nanpu Sag indicated that the charging sequence of oil and gas in the reservoir was from lower formation to upper formation, with the fault playing an important role in oil and gas accumulation. The hydrocarbon potential in reverse fault-sealed traps is much better than that in the consequent fault-sealed traps. The reverse fault-sealed traps are favorable and preferred exploration targets.

关键词： Limitation of fault-sealing fault belt oil column height hydrocarbon accumulation Nanpu Sag

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Geochemical characteristics and applications of 18α(H)-neohopanes and 17α(H)-diahopanes

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Chinese Science Bulletin 2000年第19期45卷 1742-1748页

作者： WANG Chunjiang, FU Jiamo, SHENG Guoying, XIAO Qianhua, LI Jinyou, ZHANG Yali & PIAO Mingzhi1. Slate Key Laboratory of Organic Geochemistry, Guangzhou institute of Geochemistry, Chinese Academy of Sciences. Guang/hou 510640, china 2. Department of Geosciences, Petroleum University, Beijing 102.00, china 3. institute of Petroleum exploration and Exploitation, Liaohe Bureau of Petroleum exploration, Panjin 2.0000, china State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China Department of Geosciences Petroleum University Beijing China institute of Petroleum exploration and Exploitation Liaohe Bureau of Petroleum Exploration Panjin China

Distributions and geochemical significances of 18α(H)-neohopanes and of 17α(H)-diahopanes in oils from west Xialiaohe depression of the Bohai Bay Basin have been studied. Relative abundance of 18α(H)-neohopanes and of 17α(H)-diahopanes can be effectively used as maturity parameters, in a range of medium-high mature stage, based on consideration on sedimentary-organic facies of source rocks. With a dual geochemical significance of maturity and sedimentary-organic facies, neohopane and diahopane parameters can be well used in oil-source correlation and in petroleum population division. Formation, primary concentration and preservation of precursors of rearranged hopanes are closely related to depositional conditions such as Eh-pH and clays content. A series of probable diahopanes (series D) was detected in the oils, which exhibits a similar distribution pattern and geochemical behavior as that of 17α(H)-diahopanes (series B).

关键词： 18α(H)-neohopane 17α(H)-diahopane maturity sedimentary-organic facies.

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裂缝强制闭合条件下的压降分析新模型

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石油学报 2003年第1期24卷 78-81页

作者：蒋廷学汪绪刚关文龙曾斌中国石油勘探开发研究院廊坊分院河北廊坊065007 石油大学北京昌平102200

以物质平衡原理和相关分析模型为基础 ,对PKN和KGD两种裂缝模型建立了裂缝强制闭合条件下的压力降落解释模型。与以往模型相比 ,该模型既能考虑压裂后立即放喷对裂缝参数解释的影响 ,又能考虑停泵后裂缝继续延伸的情况 ,尚可考虑停泵后... 详细信息

以物质平衡原理和相关分析模型为基础 ,对PKN和KGD两种裂缝模型建立了裂缝强制闭合条件下的压力降落解释模型。与以往模型相比 ,该模型既能考虑压裂后立即放喷对裂缝参数解释的影响 ,又能考虑停泵后裂缝继续延伸的情况 ,尚可考虑停泵后新延伸裂缝的滤失量及初滤失量。该模型也同样适用裂缝自然闭合的情况。模拟结果表明 ,当进行裂缝强制闭合时 ,以往模型解释的滤失系数比实际值偏大 ,而该模型可获得真实的滤失系数及其他油藏参数和裂缝参数。经矿场实例验证 ,本模型的计算结果稳定可靠。

关键词：水力压裂裂缝强制闭合压降分析物质平衡原理模拟模型

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模糊数学在压裂设计中的应用

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天然气工业 1998年第3期18卷 61-64页

作者：蒋廷学田占良中国石油天然气总公司石油勘探开发科学研究院廊坊分院华北石油管理局二连石油勘探开发公司

将模糊数学的有关原理，系统地应用于压裂（包括复压）的选井选层、部分关键设计参数的研究和确认以及最终压裂方案的优化决策中。在紧密结合现场实际的基础上，综合考虑了多种影响因素并将其量化，因此较以往的单因素分析法更为合理。... 详细信息

将模糊数学的有关原理，系统地应用于压裂（包括复压）的选井选层、部分关键设计参数的研究和确认以及最终压裂方案的优化决策中。在紧密结合现场实际的基础上，综合考虑了多种影响因素并将其量化，因此较以往的单因素分析法更为合理。此外，在权重的确定上，尝试应用了灰色理论中的灰色关联度法，将模糊数学与灰色理论有机地结合起来，得出的权重结果基本符合经验判断。本文的三部分研究内容，前后相接，构成一项系统工程。研究方法简单适用，现场可操作性强。研究结果经矿场实例验证及其它可靠手段检测，可信度较高，并已获得了较好的经济效益。

关键词：模糊数学油气井压裂设计参数优选灰色系统

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