后效油气层深度归位验证及流体性质分析  被引量:1

Depth homing verification of aftereffect oil and gas reservoirs and fluid property analysis

在线阅读下载全文

作  者:刘辉 张连梁 冷云飞 段宏臻 官洪波 张洪福 LIU Hui;ZHANG Lianliang;LENG Yunfei;DUAN Hongzhen;GUAN Hongbo;ZHANG Hongfu(China Petroleum Logging Co.,Ltd.,Qinghai Branch,Dunhuang,Gansu 736202,China;No.2 Drilling Engineering Company,BHDC,CNPC,Langfang,Hebei 065000,China)

机构地区:[1]中国石油集团测井有限公司青海分公司花土沟录井(随钻)项目部,甘肃敦煌736202 [2]中国石油测井有限公司青海分公司 [3]中国石油渤海钻探工程有限公司第二钻井工程分公司

出  处:《录井工程》2020年第3期35-42,共8页Mud Logging Engineering

摘  要:为解决后效油气层深度归位不准、后效油气上窜速度理论计算值比实际油气上窜速度偏大的难题。现场录井中通过使用单根峰分析法、全烃及组分对比分析法、迟到时间法和容积法四种方法进行后效油气层深度的准确归位,再借助于长距离划眼或下钻至中途长时间循环,进行后效油气层深度归位验证,结果发现后效油气深度归位准确,提高了油气上窜速度计算准确率,为井控安全周期进行准确把关。在后效录井过程中通过对全烃绝对值、组分相对值、CO 2含量、地层盐水等情况进行分析,判断后效显示中流体的性质,反推出为后效贡献的油气层的流体性质,协助钻井方减少CO 2或地层盐水对钻井液的污染,降低钻井液材料成本,同时指导油气层及水淹层的解释评价和试油层的科学选取。In order to solve the problem that depth homing of aftereffect oil and gas reservoirs is not correct and the theoretical calculation value of the velocity of aftereffect oil and gas channeling upward is larger than that of the actual oil and gas,the paper introduces four methods in the field mud logging process,including single peak analysis method,total hydrocarbon and component comparison analysis method,lag time method and volumetric method,to accurately locate the aftereffect oil and gas reservoir depth.With the help of long-distance wiping or long-time circulation from tripping to midway,the depth homing of aftereffect oil and gas reservoir is verified.The results show that the depth homing of aftereffect oil and gas is accurate,which improves the calculation accuracy of the velocity of oil and gas channeling upward,and ensures the safety cycle of well control accurately.In the process of aftereffect mud logging,through the analysis of total hydrocarbon absolute value,component relative value,CO 2 content and formation brine,the fluid properties in aftereffect shows are judged,the fluid properties of the oil and gas reservoirs contributing to the aftereffect are inversely deduced,which assists the drill crew to reduce CO 2 or formation brine contamination to drilling fluid,lower drilling fluid material cost,and guide the interpretation and evaluation of oil and gas reservoirs and water-flooded zones and the scientific selection of production testing interval.

关 键 词:后效 油气层深度 油气上窜速度 水淹层 流体性质 

分 类 号:TE132.1[石油与天然气工程—油气勘探]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象