中原油田胡123块储层综合研究
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摘要
本文充分运用地质、测井以及室内分析化验资料,将测井沉积学、石油地质学和计算机技术与传统的古生物学、沉积学等理论相结合,按照从宏观—微观、从单井—多井—区域目的层的研究思路,对储层的微观孔隙结构、岩性特征、沉积相特征、物性特征等进行了深入的研究,在此基础上运用岩石物理相参数及有效厚度乘积将储层分为三类,并对其进行了分类评价,为该区的滚动勘探和提高开发效果提供依据,最后得出以下结论:
1.胡123为一套河流入湖后形成的湖泊三角洲沉积,其中胡123~1为三角洲前缘沉积,胡123~2为三角洲平原亚相沉积。储层主要为分流河道及水下分流河道砂体。
2.岩心观察和岩石薄片鉴定表明,胡123油层组储层岩石以细粒长石岩为主。
3.储层非均质性研究表明,本区胡123油层组非均质性较强。
4.选用岩石物理相参数(FZI)及有效厚度乘积作为储层分类评价参数,将研究区胡123储层划分为Ⅰ类(好储层)、Ⅱ类(中等储层)和Ⅲ类(差储层)储层。分类结果为:研究区胡123~1主要以Ⅲ类储层为主;胡123~2Ⅰ类、Ⅱ类储层占较大面积;胡123~3以Ⅱ类、Ⅲ类储层为主,Ⅰ类储层所占面积较胡123~2有所减小;胡123~4广大面积被Ⅲ类储层覆盖。评价结果与岩心、试油资料的对比分析表明,该方法在储层分类评价中的应用是可行的,且显示出较高的综合性与科学性,为今后的勘探开发指明了方向,具有一定的经济效益与推广价值。
The paper makes full use of geological,well-logging and indoor analysis and test data,and integrate well-logging sedimentology,petroleum geology and computer technology with theory of traditional paleontology and sedimentology,according to research thoughts that from macroscopic to microscopic,from single well-Multiple well to target stratum in the research region,have studied the property of microcosmic pore structure,lithologic, sedimentary facies,petrophysical property and so on in-depth.Based on the content describe above,we sort the reservoir into three and evaluate the three types of reservoir,which Supply foundation to progressive exploration and increasing the effective exploitation,ln the end,we achieve the following conclusion:
1.Facies of hu123 Oil-bearing bed are lake delta,facies of Hu 123 is delta front and hu123 is delta plain.Sand bodies of hu123 Oil-bearing bed are mainly distributary channel deposits of lake delta front facies and delta plain facies.
2.By analyzing the data of drilling cores and rock thin-section,we think that fine-grained feldspar sandstone is the main oil-bearing rock in Hu123 reservoir of research region.
3.The results of reservoir heterogeneity study indicate that heterogeneity in Hu123 reservoir of research region is high.
4.We evaluated reservoir by petrophysical facies parameter(FZI) and net-pay thickness,and divide reservoir in hu123 of research region into three,namelyⅠ(good reservoir)、Ⅱ(medium reservoir)、Ⅲ(poor reservoir),the results indicate thin hu123 reservoir type of research region mainly isⅢ,hu123 areⅠandⅡ,hu123 areⅡandⅢand hu123 isⅢ..We compare the evaluate results with core and production test data,the results indicate that this method is feasible in container rock evaluation,and is also very scientific and synthetical,it pointed out the direction for the oil exploration and exploitation,and have some economic benefit,so it can be generalized.
1.胡123为一套河流入湖后形成的湖泊三角洲沉积,其中胡123~1为三角洲前缘沉积,胡123~2为三角洲平原亚相沉积。储层主要为分流河道及水下分流河道砂体。
2.岩心观察和岩石薄片鉴定表明,胡123油层组储层岩石以细粒长石岩为主。
3.储层非均质性研究表明,本区胡123油层组非均质性较强。
4.选用岩石物理相参数(FZI)及有效厚度乘积作为储层分类评价参数,将研究区胡123储层划分为Ⅰ类(好储层)、Ⅱ类(中等储层)和Ⅲ类(差储层)储层。分类结果为:研究区胡123~1主要以Ⅲ类储层为主;胡123~2Ⅰ类、Ⅱ类储层占较大面积;胡123~3以Ⅱ类、Ⅲ类储层为主,Ⅰ类储层所占面积较胡123~2有所减小;胡123~4广大面积被Ⅲ类储层覆盖。评价结果与岩心、试油资料的对比分析表明,该方法在储层分类评价中的应用是可行的,且显示出较高的综合性与科学性,为今后的勘探开发指明了方向,具有一定的经济效益与推广价值。
The paper makes full use of geological,well-logging and indoor analysis and test data,and integrate well-logging sedimentology,petroleum geology and computer technology with theory of traditional paleontology and sedimentology,according to research thoughts that from macroscopic to microscopic,from single well-Multiple well to target stratum in the research region,have studied the property of microcosmic pore structure,lithologic, sedimentary facies,petrophysical property and so on in-depth.Based on the content describe above,we sort the reservoir into three and evaluate the three types of reservoir,which Supply foundation to progressive exploration and increasing the effective exploitation,ln the end,we achieve the following conclusion:
1.Facies of hu123 Oil-bearing bed are lake delta,facies of Hu 123 is delta front and hu123 is delta plain.Sand bodies of hu123 Oil-bearing bed are mainly distributary channel deposits of lake delta front facies and delta plain facies.
2.By analyzing the data of drilling cores and rock thin-section,we think that fine-grained feldspar sandstone is the main oil-bearing rock in Hu123 reservoir of research region.
3.The results of reservoir heterogeneity study indicate that heterogeneity in Hu123 reservoir of research region is high.
4.We evaluated reservoir by petrophysical facies parameter(FZI) and net-pay thickness,and divide reservoir in hu123 of research region into three,namelyⅠ(good reservoir)、Ⅱ(medium reservoir)、Ⅲ(poor reservoir),the results indicate thin hu123 reservoir type of research region mainly isⅢ,hu123 areⅠandⅡ,hu123 areⅡandⅢand hu123 isⅢ..We compare the evaluate results with core and production test data,the results indicate that this method is feasible in container rock evaluation,and is also very scientific and synthetical,it pointed out the direction for the oil exploration and exploitation,and have some economic benefit,so it can be generalized.
引文
[1]顿铁军.储层研究状况与发展趋势向[J].西北地质,1995,16(2):1-15
[2]李道品.低渗透油田开发[M].北京:石油工业出版社,1999,2-18
[3]Li Daopin.Main Problems in Developing Low Permeability Reservoir and Its Improvement Ways.spe 50921.1998.403-419
[4]闵琪,金贵孝,荣春龙.低渗透油气田开发研究与实践[M].北京:石油工业出版社,1999.9-14
[5]曾大乾,李淑贞.中国低渗渗透砂岩储层类型及地质特征[J].石油学报,1994,15(1):38-45
[6]蒋凌志,顾家裕,郭彬程.中国含油气盆地碎屑岩低渗透储层的特征及形成机理[J].沉积学报,2004,21(1):13-18
[7]RS.Tye,S.E.Laubach,S.P.Dutton,and K.L.Herrington.The Role of Geology in Characterizing Low-Permeability Sandstones,North Appleby Field,East Texas Basin.SPE 18964.1989.353-364
[8]裘亦楠,薛叔浩.油气储层评价技术[M].第二版.北京:石油工业出版社,2001.28-39.
[9]H.G.里丁.沉积环境和相[M].北京:科学出版社,1991,5-18
[10]戴启德,黄玉杰.油田开发地质学[M].石油大学出版社.东营:1999,195-199
[11]长庆油田石油地质志编写组.中国石油地质志 卷十二 长庆油田[M].北京:石油工业出版社.1992,124-127
[12]罗静兰,张成立,阎世可.盆地埋藏史及其对砂岩储层物性演化的影响[J].石油与天然气地质,2001,22(2):123-129
[13]Houseknecht D.W.Assessing the relative importance of compaction processes and cementation to redudce of porosity in sandstones[J].AAPG Bulletin,1987,71(6):633-642
[14]Macros V.F.Carvalho,Luiz F.De Ros,Newton S.Gomes Carbonate cementation patterns and diagenetic reservoir facies in the Campos Basin Cretaceous turbidites,offshore eastern Brazil[J].Marine and Petroleum Geology,1995,12(7):741-758
[15]S.Schmida,R.H.Wordena,Q.J.Fisher Diagenesis and reservoir quality of the Sherwood Sandstone(Triassic),Corrib Field,Slyne Basin,west of Ireland[J].Marine and Petroleum Geology,2004,21:299-315
[16]姜在兴.沉积学[M].北京:石油工业出版社.2003.54-87.
[17]吴胜和,熊琦华.油气储层地质学[M].北京:石油工业出版社,1998.55-64.
[18]cott L.Montgomery.South Casper Creek Field:A Study in Reservoir Heterogeneity[J].AAPG Bulletin,1996,80(8):P1161-1176.
[19]W.E.Howard mid E.R,Hunt.An Integrated Approach to Formation Evaluation.SPE 15208.1986.189-200
[20]吴少波,谭成仟,宋子齐.沈84块沙三下(S_3~4)层段储层特征与评价[J],西安石油学院学报,2001,16(4):20-24
[21]王志章,石占中等.现代油藏描述技术[M].北京:石油工业出版社,1999,179-185
[22]代金友,张一伟,熊琦华等.用模糊聚类方法划分岩石物理相[J].石油大学学报.2004,28(2):12-15
[23]石玉江,张海涛,侯雨庭等.基于岩石物理相分类的测井储层参数精细解释建模.测井技术[J].2005,29(4):328-332
[2]李道品.低渗透油田开发[M].北京:石油工业出版社,1999,2-18
[3]Li Daopin.Main Problems in Developing Low Permeability Reservoir and Its Improvement Ways.spe 50921.1998.403-419
[4]闵琪,金贵孝,荣春龙.低渗透油气田开发研究与实践[M].北京:石油工业出版社,1999.9-14
[5]曾大乾,李淑贞.中国低渗渗透砂岩储层类型及地质特征[J].石油学报,1994,15(1):38-45
[6]蒋凌志,顾家裕,郭彬程.中国含油气盆地碎屑岩低渗透储层的特征及形成机理[J].沉积学报,2004,21(1):13-18
[7]RS.Tye,S.E.Laubach,S.P.Dutton,and K.L.Herrington.The Role of Geology in Characterizing Low-Permeability Sandstones,North Appleby Field,East Texas Basin.SPE 18964.1989.353-364
[8]裘亦楠,薛叔浩.油气储层评价技术[M].第二版.北京:石油工业出版社,2001.28-39.
[9]H.G.里丁.沉积环境和相[M].北京:科学出版社,1991,5-18
[10]戴启德,黄玉杰.油田开发地质学[M].石油大学出版社.东营:1999,195-199
[11]长庆油田石油地质志编写组.中国石油地质志 卷十二 长庆油田[M].北京:石油工业出版社.1992,124-127
[12]罗静兰,张成立,阎世可.盆地埋藏史及其对砂岩储层物性演化的影响[J].石油与天然气地质,2001,22(2):123-129
[13]Houseknecht D.W.Assessing the relative importance of compaction processes and cementation to redudce of porosity in sandstones[J].AAPG Bulletin,1987,71(6):633-642
[14]Macros V.F.Carvalho,Luiz F.De Ros,Newton S.Gomes Carbonate cementation patterns and diagenetic reservoir facies in the Campos Basin Cretaceous turbidites,offshore eastern Brazil[J].Marine and Petroleum Geology,1995,12(7):741-758
[15]S.Schmida,R.H.Wordena,Q.J.Fisher Diagenesis and reservoir quality of the Sherwood Sandstone(Triassic),Corrib Field,Slyne Basin,west of Ireland[J].Marine and Petroleum Geology,2004,21:299-315
[16]姜在兴.沉积学[M].北京:石油工业出版社.2003.54-87.
[17]吴胜和,熊琦华.油气储层地质学[M].北京:石油工业出版社,1998.55-64.
[18]cott L.Montgomery.South Casper Creek Field:A Study in Reservoir Heterogeneity[J].AAPG Bulletin,1996,80(8):P1161-1176.
[19]W.E.Howard mid E.R,Hunt.An Integrated Approach to Formation Evaluation.SPE 15208.1986.189-200
[20]吴少波,谭成仟,宋子齐.沈84块沙三下(S_3~4)层段储层特征与评价[J],西安石油学院学报,2001,16(4):20-24
[21]王志章,石占中等.现代油藏描述技术[M].北京:石油工业出版社,1999,179-185
[22]代金友,张一伟,熊琦华等.用模糊聚类方法划分岩石物理相[J].石油大学学报.2004,28(2):12-15
[23]石玉江,张海涛,侯雨庭等.基于岩石物理相分类的测井储层参数精细解释建模.测井技术[J].2005,29(4):328-332
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