斜穿地层水平井与定向井储层对比方法
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摘要
针对斜穿地层水平井与定向井或直井因垂深差异无法实现以垂深进行地层及储层对比难题,运用水平井水平段斜深折算垂深方法和反扣水平井水平段顶底倒置处理后斜深折算垂深方法,得出了斜穿地层水平井可以与定向井或直井进行地层及储层对比的结论。将研究成果应用于锦州25-1南油田A49井区,生产动态证实,储层对比方案与油藏动态认识一致,2口水平采油井和定向注水井注采对应关系均较好,该区块的累计产油量为32. 47×10~4m~3,综合含水为30. 1%,采出程度为17. 2%。对锦州25-1南油田沙二段78口水平井与60口定向井(包括潜山过路井)及10口直井(探井)开展了精细地层及储层对比,效果显著。研究内容对类似斜穿地层水平井开发油田具有一定的借鉴意义。
In view of the difficulty of formation and reservoir correlation in true vertical depth between oblique horizontal well and directional well or vertical well due to the difference of their true vertical depths,the true vertical depth conversion method for along hole depth of horizontal section of horizontal well and the true vertical depth conversion method for along hole depth after inversion treatment of top and bottom of horizontal section of left handed horizontal well were used to obtain the conclusions that oblique horizontal well can be correlated with directional well or vertical well in formation and reservoir. The study achievements were applied in wellblock A 49 of Jinzhou25-1 south oilfield. The production performance proved that the reservoir correlation scheme was consistent with the reservoir performance understanding,and the injection-production corresponding relationship of 2 horizontal production wells and directional water injection wells was good. The cumulative oil production of this block is 32.47×10~4 m~3,the composite water cut is 30.1% and the recovery percent of reserves is 17.2%. Moreover,fine formation and reservoir correlation of 78 horizontal wells,60 directional wells( including buried hill crossing wells) and 10 vertical wells( exploration wells) in Sha2 Member of Jinzhou 25-1 south oilfield was carried out,achieving remarkable effect. The study contents have some reference significance for the oilfield developed by similar oblique horizontal wells.
In view of the difficulty of formation and reservoir correlation in true vertical depth between oblique horizontal well and directional well or vertical well due to the difference of their true vertical depths,the true vertical depth conversion method for along hole depth of horizontal section of horizontal well and the true vertical depth conversion method for along hole depth after inversion treatment of top and bottom of horizontal section of left handed horizontal well were used to obtain the conclusions that oblique horizontal well can be correlated with directional well or vertical well in formation and reservoir. The study achievements were applied in wellblock A 49 of Jinzhou25-1 south oilfield. The production performance proved that the reservoir correlation scheme was consistent with the reservoir performance understanding,and the injection-production corresponding relationship of 2 horizontal production wells and directional water injection wells was good. The cumulative oil production of this block is 32.47×10~4 m~3,the composite water cut is 30.1% and the recovery percent of reserves is 17.2%. Moreover,fine formation and reservoir correlation of 78 horizontal wells,60 directional wells( including buried hill crossing wells) and 10 vertical wells( exploration wells) in Sha2 Member of Jinzhou 25-1 south oilfield was carried out,achieving remarkable effect. The study contents have some reference significance for the oilfield developed by similar oblique horizontal wells.
引文
[1]李海彬.地层对比在走滑断层位移量计算中的应用-以松辽盆地梨树断陷皮家走滑断层为例[J].四川地质学报,2016,36(4):531-534.
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[11]程奇,吕坐彬,张占女,等.辽西低凸起锦州25-1南油田沙二段沉积体系特征及演化[J].石油地质与工程,2015,29(5):21-24,30.
[12]文佳涛,程奇,吕坐彬,等.锦州25-1南油田沙河街组二段辫状河三角洲的识别与新认识[J].石油地质与工程,2015,29(6):37-40.
[13]王健,程建莉,戴荣东,等.高分辨率层序地层学在录井随钻对比中的应用[J].特种油气藏,2018,25(2):31-36.
[14]冯晓伟,李浮萍,赵忠军,等.苏里格气田东区马五段4亚段1小层与5亚段白云岩储层对比研究[J].石油天然气学报,2014,36(1):25-29.
[15]袁丽华,刘赫,李军辉,等.井震联合精细标定技术在海拉尔盆地地层对比中的应用[J].石油天然气学报,2012,34(1):63-67.
[16]史长林,纪友亮,刘灵童,等.自旋回-异旋回控制的扇三角洲相高精度层序地层对比模式[J].石油天然气学报,2013,35(3):6-11.
[17]许璟,蒲仁海,郭倩,等.塔里木盆地卡拉沙依组砂泥岩段地层对比与沉积相研究[J].特种油气藏,2012,19(4):51-55.
[18]王海成,李虎,李富友,等.柴达木盆地南八仙油田精细地层对比[J].新疆石油天然气,2013,9(1):6-11.
[19]刘文岭,王大星,萧希航,等.复杂油藏井震联合等时地层对比技术与应用---以大港王徐庄油田为例[J].石油物探,2016,55(4):540-549.
[20]彭学红,黄焕,武鑫,等.井震结合在九区288断块克拉玛依组油藏构造和地层对比研究中的应用[J].新疆石油天然气,2016,12(1):39-44.
[21]李鹏,张芸,王宁,等.密集段及其在区域地层对比中的意义[J].石油地质与工程,2012,26(6):5-9.
[22]杨宏伟,胡心红.测井曲线正演在河流相储层对比中的应用[J].石油天然气学报,2014,36(8):79-81.
[2]王渝明,许运新,黄德利,等.陆相沉积地层油层对比方法[M].北京:石油工业出版社,2001:17-69.
[3]王振奇,张昌民,张尚锋,等.油气储层的层次划分和对比技术[J].石油天然气与地质,2002,23(1):70-75.
[4]邓宏文,王洪亮,李小孟.高分辨率层序地层对比在河流相中的应用[J].石油与然气地质,1997,18(2):90-95.
[5]严云奎,安亚峰.鄂尔多斯盆地延长组地层的精细划分与对比---以川口油田北区为例[J].西北大学学报(自然科学版),2009,39(2):273-274.
[6]孔祥宇,于继崇,李树峰.复杂断块老油田精细地层对比综合方法的提出与应用[J].岩性油气藏,2009,21(1):120-124.
[7]朱筱敏.层序地层学原理及应用[M].北京:石油工业出版社,1998:1-50.
[8]王渝明,许运新,黄得利,等.陆相沉积地层油层对比方法[M].北京:石油工业出版社,2001:175-183.
[9]郭建华.高频湖平面升降旋回与等时储层对比[J].地质论评,1998,44(5):529-535.
[10]赵翰卿.高分辨率层序地层对比与我国的小层对比[J].大庆石油地质与开发,2005,24(1):5-12.
[11]程奇,吕坐彬,张占女,等.辽西低凸起锦州25-1南油田沙二段沉积体系特征及演化[J].石油地质与工程,2015,29(5):21-24,30.
[12]文佳涛,程奇,吕坐彬,等.锦州25-1南油田沙河街组二段辫状河三角洲的识别与新认识[J].石油地质与工程,2015,29(6):37-40.
[13]王健,程建莉,戴荣东,等.高分辨率层序地层学在录井随钻对比中的应用[J].特种油气藏,2018,25(2):31-36.
[14]冯晓伟,李浮萍,赵忠军,等.苏里格气田东区马五段4亚段1小层与5亚段白云岩储层对比研究[J].石油天然气学报,2014,36(1):25-29.
[15]袁丽华,刘赫,李军辉,等.井震联合精细标定技术在海拉尔盆地地层对比中的应用[J].石油天然气学报,2012,34(1):63-67.
[16]史长林,纪友亮,刘灵童,等.自旋回-异旋回控制的扇三角洲相高精度层序地层对比模式[J].石油天然气学报,2013,35(3):6-11.
[17]许璟,蒲仁海,郭倩,等.塔里木盆地卡拉沙依组砂泥岩段地层对比与沉积相研究[J].特种油气藏,2012,19(4):51-55.
[18]王海成,李虎,李富友,等.柴达木盆地南八仙油田精细地层对比[J].新疆石油天然气,2013,9(1):6-11.
[19]刘文岭,王大星,萧希航,等.复杂油藏井震联合等时地层对比技术与应用---以大港王徐庄油田为例[J].石油物探,2016,55(4):540-549.
[20]彭学红,黄焕,武鑫,等.井震结合在九区288断块克拉玛依组油藏构造和地层对比研究中的应用[J].新疆石油天然气,2016,12(1):39-44.
[21]李鹏,张芸,王宁,等.密集段及其在区域地层对比中的意义[J].石油地质与工程,2012,26(6):5-9.
[22]杨宏伟,胡心红.测井曲线正演在河流相储层对比中的应用[J].石油天然气学报,2014,36(8):79-81.
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