顺宁油田低渗透砂岩储层沉积特征与控油因素

doi:10.11743/ogg20010213

Abstract

Abstract:

Chang-2 oil-horizons of the Yanchang Formation is the main pay bed of Shunning Oilfield The main oil horizon-chang-1 oil horizon is a typical low permeable sandstone reservoir consisted of distributary channel and distrihutary hay sediments. The distributary channel consists of main body, side part and marginal hank. The main body poss eases favourable physical property and is the major place for hydrocarbon accumnlation. Chang 2^1-1 oil horizon is exten-sively distributed with thick oil-bearing bed; Chang 2^1-2 oil horizon is restricted with thin oil-bearing bed. They are-placed in the same oil-water system. The distribution of oil and water is mainly controlled by sedimentary facies, structures and the thickness of sand bodies.

Key words: low permeable reservoir, sedimentary characteristics, Chang-2 oil horizon oil-water distibution, oil-controlling factor

CLC Number:

P618.130.2⁺1

Wang Jianmin, Zhou Zhuoming. SEDIMENTARY CHARACTERISTICS AND OIL-CONTROLLING FACTORS OF LOW PERMEABLE SANDSTONE RESERVOIRS IN SHUNNING OILFIELD[J]. Oil & Gas Geology, 2001, 22(2): 146-149,164.

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SEDIMENTARY CHARACTERISTICS AND OIL-CONTROLLING FACTORS OF LOW PERMEABLE SANDSTONE RESERVOIRS IN SHUNNING OILFIELD

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