气测录井在福山油田解释评价中的应用

Application of gas logging in interpretation and evaluation of Fushan Oilfield

福山油田勘探开发受地面环保的制约多采用大位移定向井,各区块间的油气藏录井显示特征存在较大差异,加之轻质油气藏又是录井解释评价中的一个难题。为使现场能够及时、准确评价油气层,从福山油田油气重要发现手段气测录井入手,在诸多气测检测参数和派生参数中,优选出湿度比、峰基比、烃斜率等参数,建立了适用分区块、分层位的气测解释标准和图板。这种气测录井解释评价方法简便、实用性强,在福山油田勘探开发中持续发挥着重要作用。

The exploration and development of Fushan Oilfield is restricted by environment protection on the ground,and the extended reach directional wells are mostly used,and there are great differences between mud logging display characteristics of hydrocarbon reservoirs among the blocks.In addition,light hydrocarbon reservoir is a difficult problem in mud logging interpretation and evaluation.In order to field timely and accurately evaluate hydrocarbon reservoirs,starting with gas logging,which is an important means of oil and gas discovery in Fushan Oilfield,the parameters of humidity ratio,peak-to-base ratio and hydrocarbon slope are optimized among many gas logging parameters and derivative parameters,and gas logging interpretation standards and charts suitable for dividing blocks and horizons are established.The method of gas logging interpretation and evaluation is simple and practical,and plays an important role in the exploration and development of Fushan Oilfield.