油气藏评价与开发
油氣藏評價與開髮
유기장평개여개발
2015年
2期
22-27
,共6页
采油指数%碳酸岩油藏%数值试井%岩石类型分类%拟稳态
採油指數%碳痠巖油藏%數值試井%巖石類型分類%擬穩態
채유지수%탄산암유장%수치시정%암석류형분류%의은태
productivity index%carbonate reservoir%numerical well testing%rock type%pseudo stable state(PSS)
根据孔隙型碳酸盐岩储层分类标准,中东F油田储层属于中低孔、低渗—特低渗储层,油藏在平面和纵向上具有极强的非均质性。通过常规试井求取的单井采油指数,只能反应不稳定采油指数,而计算拟稳态下的采油指数才能对油井及油田的动态具有指导意义。目前对于此类碳酸岩油藏确定拟稳态采油指数还没有成熟的方法,利用数值试井结合动态地质模型及理论公式对拟稳态采油指数进行了初步研究,并根据碳酸岩油藏岩石类型分类结果,预测拟稳态采油指数的平面分布规律,研究结果可以较好地预测新井产能,高效地指导油藏开发。
根據孔隙型碳痠鹽巖儲層分類標準,中東F油田儲層屬于中低孔、低滲—特低滲儲層,油藏在平麵和縱嚮上具有極彊的非均質性。通過常規試井求取的單井採油指數,隻能反應不穩定採油指數,而計算擬穩態下的採油指數纔能對油井及油田的動態具有指導意義。目前對于此類碳痠巖油藏確定擬穩態採油指數還沒有成熟的方法,利用數值試井結閤動態地質模型及理論公式對擬穩態採油指數進行瞭初步研究,併根據碳痠巖油藏巖石類型分類結果,預測擬穩態採油指數的平麵分佈規律,研究結果可以較好地預測新井產能,高效地指導油藏開髮。
근거공극형탄산염암저층분류표준,중동F유전저층속우중저공、저삼—특저삼저층,유장재평면화종향상구유겁강적비균질성。통과상규시정구취적단정채유지수,지능반응불은정채유지수,이계산의은태하적채유지수재능대유정급유전적동태구유지도의의。목전대우차류탄산암유장학정의은태채유지수환몰유성숙적방법,이용수치시정결합동태지질모형급이론공식대의은태채유지수진행료초보연구,병근거탄산암유장암석류형분류결과,예측의은태채유지수적평면분포규률,연구결과가이교호지예측신정산능,고효지지도유장개발。
According to the classification standard of pore type carbonate reservoir, the formation of oil field F in Middle East has middle-low porosity and low-extra low permeability, which has serious heterogeneity in plane and longitudinal direction. The pro?duction index(PI) computed by conventional well testing is transient PI. In fact, the PSS PI is useful for guiding the performance of single well or oil field. Currently, there is no maturely method to determine the PSS PI of pore type carbonate reservoir. This paper addresses the primary study of PSS PI through integrating numerical well testing data, dynamical simulation model, and theoretical equation. Based on rock typing results of carbonate reservoir, the plane distribution laws of PSS PI can be obtained. The results can well predict the productivity of new producers and efficiently guide the development of such carbonate reservoir.