Study of fluid potential field and its application 油勢場的研究與應(yīng)用
The fluid potential and hydrocarbon movement and accumulation of damintun depression in liaohe basin , china 遼河盆地大民屯凹陷流體勢及油氣運聚
The characteristics of compaction curves , the evolution of organic matter , the direction of migration and assignment , conduit system , fluid potential are studied it is concluded that the low maturity of the source of the eogene age is the main factor to control the entrapment . it controls the direction of the primary migration , confines the location of mature source rock and the special carrier rock , controls the time of expulsion and the amount of petroleum , therefore ; the effective traps should be near to oil kitchen and on the pathways of migration 認為下第三系油灶的低熟是影響其運聚成藏的關(guān)鍵因素,生油巖低熟決定油氣初次排烴的方向指向沙三下段;生油巖低熟決定成熟生油巖分布的局限性和輸導(dǎo)體的特殊性;生油巖低熟決定起排烴時間晚、生烴量不足,從而決定有效的圈閉應(yīng)是近源的、在運移主路線上。
According to separating touch of fluid potential field in f , y oil layer , eight oil or gas accumulation systems are divided in f , y oil layer , they are daqing - zhaoyuan oil or gas accumulation system , longhupao - taikang oil or gas accumulation system , heiyupao - yian oil or gas accumulation system , haerbin - shuangcheng oil or gas accumulation system , zhaodong - mingshui oil or gas accumulation system and hailun oil or gas accumulation system 根據(jù)扶、楊油層流體勢場分隔槽,將松遼盆地北部扶、楊油層劃分出八個含油氣系統(tǒng),即即大慶?肇源含油氣系統(tǒng)、龍虎泡?太康含油氣系統(tǒng)、英臺?大安含油氣系統(tǒng)、朝陽溝?肇東含油氣系統(tǒng)、齊齊哈爾?依安含油氣系統(tǒng)、肇東?明水含油氣系統(tǒng)、哈爾濱?雙城含油氣系統(tǒng)、海倫含油氣系統(tǒng)。
Then i discussed methane desorption properties including cbm - bearing saturation , critical desorption pressure , the ratio between critical desorption pressure and original coal reservoirs pressure and difference of terra decompression ; cbm - bearing characteristics of coal seams including measured / academic cbm - bearing content , coalbed methane resources content and cbm resources abundance , etc . the author respectively gave a brief account of the basic characteristics of ancient and today ' s geothermic field at 1000m and 2000m depth , coal measure strata pressure field at the depth less than 1600m , structural stress field from jurassic to present , and ancient and today ' s fluid potential field ( that is water potential and gas potential distributing in coal measure strata ) 分別簡述了準噶爾盆地1000m及2000m深度今古地溫場、 1600m以淺的煤系地層壓力場、侏羅紀至今地應(yīng)力場及煤系地層水勢與氣勢分布的今古流體勢場基本特征,進而對這“四場”特征及其互動關(guān)系與煤儲層物性、可采性及煤層氣聚集的關(guān)系進行了探討。從構(gòu)造背景、構(gòu)造演化及構(gòu)造類型幾方面論述了本區(qū)構(gòu)造作用的控氣特征。