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Journal of Hydrodynamics 2009年第5期21卷 699-704页

作者： CUI Hai-qing CAI Meng ZHANG Shu-yun XIU De-yan Key Laboratory for Enhanced Oil and Gas Recovery of Ministry of Education Daqing Petroleum Institute Daqing 163318 China exploration and Development Research institute of Jidong Oilfield PetroChina Tangshan 063000 China

With the governing equations for the flow of the power-law fluid in annulus with the inner cylinder executing a planetary motion being transformed by using the undetermined coefficient method, the formula of pressure gradient for this flow under the given flow rate and the relevant numerical calculation method are given in this article. Through the experiments on the flow of Hydrolyzed Polyacrylamide （HPAM） aqueous solution which can be regarded as a power-law fluid, the calculated results of the pressure gradient values are compared with measured data, the mean relative error between them is smaller than 5%, which verifies the results presented in this article.

关键词： power-law fluid planetary motion annulus pressure gradient numerical calculation

Optimization of horizontal well staggered patterns

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petroleum Science 2008年第4期5卷 348-352页

作者： Zhao Chunsen Li Peijing Guan Dan Liu Qingjuan Department of petroleum Engineering Daqing Petroleum Institute Daqing Heilongjiang 163318 China

Staggered line-drive patterns are widely used in oilfields. In this paper, to optimize a staggered pattern of horizontal wells, a 3D problem was divided into two 2D （x-y plane andy-z plane） problems with the pseudo-3D method, conformal transformation and superposition principle. A productivity equation for a horizontal well was deduced, which can be used to optimize the well pattern. A relationship between the length of horizontal wells and the shape factor of well patterns was established. The result shows that optimized well patterns can improve oil production from horizontal wells. This provides a theoretical basis for horizontal well applications to the development of oilfields, especially for overall development of oilfields by horizontal wells.

关键词： Horizontal well productivity calculation optimization of well pattern

Geochemical characteristics of pyrolysis gas from epimetamorphic rocks in the northern basement of Songliao Basin,Northeast china

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Science china Earth Sciences 2008年第S1期51卷 140-147页

作者： YANG Chun 1 ,LUO Xia 2 ,LI Jian 2 ,LI ZhiSheng 2 ,LIU QuanYou 3 &Wang YuLin 4 1 Department of Earth Sciences,Zhejiang University,Hangzhou 310027,china 2 Research institute of petroleum exploration and Development(Langfang Branch),Langfang 065007,china 3 Research institute of petroleum exploration and Development,Beijing 100083,china 4 Department of Source and Environment,Liaoning Technical University,Fuxin 123000,china Zhejiang Univ Dept Earth Sci Hangzhou 310027 Peoples R China Res Inst Petr Explorat & Dev Langfang Branch Langfang 065007 Peoples R China Res Inst Petr Explorat & Dev Beijing 100083 Peoples R China Liaoning Tech Univ Dept Source & Environm Fuxing 123000 Peoples R China

The Xushen gas field,located in the north of Songliao Basin,is a potential giant gas area for china in the *** proved reserves have exceeded 1000×10 8 m 3 by the end of ***,the origin of natural gases from the deep strata is still in *** rocks as a potential gas source are widely spreading in the northern basement of Songliao *** to pyrolysis experiments for these rocks in the semi-confined system,gas production and geochemistry of alkane gases are discussed in this *** Carboniferous-Permian epimetamorphic rocks were heated from 300℃to 550℃,with temperature interval of 50℃.The gas production was quantified and measured for chemical and carbon isotopic *** show thatδ13C 1 is less than?20‰,carbon isotope trend of alkane gas isδ13C 1 2 2 >δ13C 3 ,these features suggest that the gas would be coal-type gas at high-over maturity,not be inorganic gas with reversal trend of gaseous alkanes (δ13C 1 >δ13C 2 >δ13C 3 ).These characteristics of carbon isotopes are similar with the natural gas from the basin basement,but disagree with gas from the Xingcheng ***,the mixing gases from the pyrolysis gas with coal-typed gases at high-over maturity or oil-typed gases do not cause the reversal trend of carbon *** gas generation intensity for epimetamorphic rocks is 3.0×10 8 ―23.8×10 8 m 3 /km 2 ,corresponding to Ro from 2.0%to 3.5%for organic matter.

关键词： Northern Songliao Basin epimetamorphic rock pyrolysis experiment gas generation potential carbon isotope

Efficient computation of the compositional model for gas condensate reservoirs

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Communications in Nonlinear Science and Numerical Simulation 2000年第4期5卷 141-146页

作者： Jifu ZHOU, Jiachun LI and Jigen YE (institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, china The Research institute of petroleum exploration and Development, Beijing 100083, china) (Received December 2, 2000) institute of Mechanics Chinese Academy of Sciences Beijing 100080 China Res. Inst. Petrol. Explor./Devmt. Beijing 100083 China

In this paper, a direct method, unsymmetric-pattern multifrontal factorization, for a large sparse system of linear equations is applied in the compositional reservoir model. The good performances of this approach are shown by solving the Poisson equation. And then the numerical module is embedded in the compositional model for simulating X15(3) gas condensate reservoir in KeKeYa gas field, Northwest china. The results of oil/gas reserves, variations of stratum pressure and oil/gas production, etc. are compared with the observation Good agreement comparable to COMP4 model is achieved, suggesting that the present model is both efficient and powerful in compositional reservoir simulations.

关键词： gas condensate reservoir compositional model sparse matrix

Biogas charging and dissipating process and its accumulation in the Sebei gasfield,Qaidam Basin,china

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Science china Earth Sciences 2008年第S1期51卷 36-44页

作者： JIN Qiang 1,CHENG FuQi 1,2 ,SU AiGuo 3 ,ZHU GuangYou 3 ,WANG Li 1 &CAO Qian 1 1 china University of petroleum,Dongying,Shandong 257061,china 2 Geological institute of Shengli Oilfield,SINOPEC,Dongying,Shandong 257015,china 3 petroleum exploration and Development institute,Petrochina,Beijing 100083,china china Univ Petr Shandong 257061 Peoples R China SINOPEC Geol Inst Shengli Oilfield Shandong 257015 Peoples R China Petrochina Petr Explorat & Dev Inst Beijing 100083 Peoples R China

The Sebei gasfield is the largest biogas accumulation found in china and many reservoirs and seal rocks superposed on a syndepositional anticline in *** biogas charging and dissipating process and its distribution have been a research focus for many *** authors suggest a diffusing and accumulating model for the biogas,as they find that the shallower the gas producer,the more methane in the biogas,and the lighter stable carbon isotope composition of *** on the diffusing model,diffused biogas is quantitatively estimated for each potential sandy reservoir in the gasfield,and the gas charging quantity for the sandy reservoir is also calculated by the diffused gas quantity plus gas reserve in-place.A ratio of diffusing quantity to charging quantity is postulated to describe biogas accumulating state in a sandy reservoir,if the ratio is less than 0.6,the reservoir forms a good gas-pool and high-production layer in the gasfield,which often occurs in the reservoirs deeper than 900 m;if the ratio is greater than 0.6,a few gas accumulated in the reservoir,which frequently exists in the reservoirs shallower than 900 ***,a biogas accumulation model is built up as lateral direct charging from gas source for the sands deeper than 900 m and indirect charging from lower gas-bearing sands by diffusion at depth shallower than 900 *** this charging and diffusion quantitative model,the authors conducted re-evaluation on each wildcat in the central area of the Qaidam Basin,and found many commercial biogas layers.

关键词： biogas charging and diffusing model relative dissipated quantity Qaidam Basin

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水平井分流压裂管柱设计与力学分析

天然气工业 1998年第2期18卷 46-48页

作者：刘巨保张学鸿朱振锐季海波大庆石油学院大庆石油管理局采油研究所大庆石油管理局采油一厂

国内对水平井进行分流压裂施工尚属首次，压裂管柱设计及力学分析是压裂施工的关键技术问题之一。水平井压裂管柱在井眼曲率作用下随井身产生初始弯曲，弯曲后的压裂管柱在温度、自重、内外压力和局部集中力的综合作用下再次产生变... 详细信息

国内对水平井进行分流压裂施工尚属首次，压裂管柱设计及力学分析是压裂施工的关键技术问题之一。水平井压裂管柱在井眼曲率作用下随井身产生初始弯曲，弯曲后的压裂管柱在温度、自重、内外压力和局部集中力的综合作用下再次产生变形，变形后的压裂管柱必将与套管内壁产生接触，这种接触状态随井深和井眼圆周方向随机分布，是一种随机的多向接触摩擦非线性问题。文中将运用“多向接触摩擦间隙元法”对这一问题求解，并结合大庆油田水平井分流压裂管柱工程实例，进行了受力变形计算，给出了不同工作状况下压裂管柱与套管内壁的接触摩擦状态、管柱下端变形、井口载荷以及管柱任一截面处的内力和应力，为压裂管柱的设计和施工提供了可靠的理论依据。经现场试验表明，井口载荷的理论计算值与实测值的相对误差均在１３％以内，完全满足于工程的需要，并在水平井中成功地实施了大型分流压裂作业。

关键词：水平井分相流动压裂管柱受力分析

Establishment and Application of Serials Methods in Resources Evaluation

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china Oil & Gas 1994年第4期1卷 36-37页

作者： Gao Riqi(daqing petroleum Administration)Cai Xiyuan(exploration and Development institute,daqing petroleum Administration ) daqing petroleum Administration exploration and Development institute Daqing Petroleum Administration

Basin simulation can quantitatively rebuild the histories of structural development,sedimentary en-tombment,thermal regime,hydrocarbon generation,migration and accumulation in time and space with 3D *** the way by whi... 详细信息

关键词： Formation Evaluation Trap Serials Basin Simulation Mathematical analysis

A NEW CALCULATION METHOD FOR GAS-WELL LIQUID LOADING CAPACITY

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Journal of Hydrodynamics 2010年第6期22卷 823-828页

作者： WANG Yi-wei ZHANG Shi-cheng YAN Jin CHEN Wen-bin Ministry of Education Key Laboratory of petroleum Engineering China University of Petroleum Beijing 102249 petroleum exploration and production Research institute S1NOPEC Beijing 100083 China Sinochem petroleum Exploitation and production Co. Ltd Beijing 100031 china

This article proposes a new model for calculating the gas-well liquid loading capacity, which is critical to an accurate prediction of gas well production. Based on analysis of flow regime during the gas well production with water, which is regarded as many single particles in the model, with the shape of particles being assumed as disk-like ellipsoid instead of traditional sphere and changing according to the forces exerted on them, the influences of non-Darcy flow, compressibility, and non-sphere shape on friction factor are analyzed. The differences between the new model and other models are discussed and a new formula for calculating the critical flow rate is obtained. The calculation results and a comparison with other two models show that the new model is more consistent with the actual situation and is practical.

关键词： gas well accumulated liquid drag factor critical flow rate

ESTABLISHMENT OF THE GEOLOGICAL MODEL OF FRACTURED RESERVOIRS

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石油勘探与开发 1995年第6期22卷 90-97页

作者： Mu Long-xin (Research institute of petroleum exploration and Development, CNPC)

ＥＳＴＡＢＬＩＳＨＭＥＮＴＯＦＴＨＥＧＥＯＬＯＧＩＣＡＬＭＯＤＥＬＯＦＦＲＡＣＴＵＲＥＤＲＥＳＥＲＶＯＩＲＳ￥ＭｕＬｏｎｇ－ｘｉｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＰｅｔｒｏｌｅｕｍＥｘｐｌｏｒａｔｉｏｎａｎｄ... 详细信息

ＥＳＴＡＢＬＩＳＨＭＥＮＴＯＦＴＨＥＧＥＯＬＯＧＩＣＡＬＭＯＤＥＬＯＦＦＲＡＣＴＵＲＥＤＲＥＳＥＲＶＯＩＲＳ￥ＭｕＬｏｎｇ－ｘｉｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＰｅｔｒｏｌｅｕｍＥｘｐｌｏｒａｔｉｏｎａｎｄＤｅｖｅｌｏｐｍｅｎｔ，ＣＮＰＣ）...

关键词： Fracture Geological model Low permeability sandstone oil field

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提高储量评估水平的三大地质要素

石油学报 2004年第1期25卷 25-29页

作者：毕海滨查全衡王永卓中国石油勘探开发研究院北京100083 大庆油田有限责任公司黑龙江大庆163453

分析了我国石油地质储量的发展历程及现状 ,探讨了油藏及储集类型不同时影响地质储量变化的因素 ;主要体现在储层的含油面积和有效厚度两个参数的变化上 ,即含油体积的变化。概括了影响地质储量评估的三个不确定性 :油藏样本的局限性 ,... 详细信息

分析了我国石油地质储量的发展历程及现状 ,探讨了油藏及储集类型不同时影响地质储量变化的因素 ;主要体现在储层的含油面积和有效厚度两个参数的变化上 ,即含油体积的变化。概括了影响地质储量评估的三个不确定性 :油藏样本的局限性 ,技术的不确定性 ,经济的不确定性。在地质储量评估方面应加强对构造特征、储层分布及油水关系等三大地质基础的研究 ,合理评估不同地质条件下构造图的精度 ,正确区分油藏类型及油水系统 ,充分认识储层分布及其非均质性特点。

关键词：地质储量构造特征储层分布油藏评估不确定性技术经济