能量系数与曲线幅差形态法在孙岗区块储集层评价中的应用  

Application of energy coefficient and curve pattern difference method in special reservoir evaluation

作　　者：方锡贤[1] 熊玉芹[1] 王华[1] 

机构地区：[1]河南石油勘探局地质录井公司

出　　处：《录井工程》2011年第1期10-14,74-75,共5页Mud Logging Engineering

摘　　要：孙岗区块是泌阳凹陷一个复杂含油区块,由于该区块不同断块储集层气测参数规律性不明显、气测全烃异常相对幅度与储集层流体性质相关性差、异常显示组分特点不同,导致储集层解释评价难度较大,传统的气测解释评价方法不能满足要求。针对这种情况,在深入分析该区块不同断块储集层气测参数特点的基础上,分别建立了适应不同断块气测异常识别标准,在统计分析的基础上,提出了能量系数的概念,利用其与气测参数建立了不同断块储集层的解释评价图板。通过对该区块气测与钻时曲线形态关系的分析,提出了适合该区块特点的气测曲线"幅差形态"解释方法。经新井钻探验证,其方法能够满足该区块解释评价的需要,在储集层解释评价中发挥了重要作用。Sungang block is a complex oil-bearing block in Miyang sag.It is because the regularity of gas logging parameters is not clear in the reservoirs of different faults,the correlation between the relative amplitude of total hydrocarbon abnormal and fluid properties of reservoirs are poor and the component features of abnormal shows are different that it is difficult to interpret and evaluate the reservoirs and the conventional gas logging interpretation and evaluation methods can not meet the needs.In view of this case,on the basis of in-depth analysis to the features of reservoir gas logging parameters of different faults in this block,the authors put forward the concept of energy coefficient,set up the interpretation charts by using it and gas logging parameters,respectively established the gas logging abnormal identification criteria suitable to the different faults,and set up the interpretation and evaluation charts for reservoirs in different faults with the correlation parameters.Through analyzing the correlation between gas logging curve pattern and drilling time curve pattern,the authors put forward an interpretation method of the pattern difference in gas logging amplitude,which was fit for the features of Sungang block.The new wells drilling verified this method can meet the needs of this block interpretation and evaluation and play an important role in reservoir interpretation and evaluation.

关 键 词：气测录井 异常显示 解释图板 幅差形态 储集层 

分 类 号：TE142[石油与天然气工程—油气勘探]