中国石化天然气勘探前景展望

OUTLOOK FOR NATURAL GAS EXPLORATION PROSPECTS OF SINOPEC

中国石化矿权块内拥有的天然气资源十分丰富,主要集中在四川盆地及其周缘、塔里木盆地、鄂尔多斯盆地北部、渤海湾盆地南部、松辽盆地南部和东海陆架盆地等。1998年以来,中国石化逐年大幅度加大天然气勘探力度,发现了普光、大牛地两个大气田,形成了川西立体勘探新局面,同时在东部发现新层系、新类型,探明储量快速增长。结合新一轮全国油气资源评价结果,研究认为:中国石化探区勘探程度低,天然气资源探明率仅6%,进一步勘探的潜力巨大;预计在今后较长时期内,中国石化每年新增天然气(气层气)探明地质储量将保持在1000×108m3以上,其主力探区是我国南方和西部,其次是东部和海域;随着中国石化天然气勘探工作的全面推进与不断深化,也需要大力推进天然气地质理论创新和勘探技术进步。

Natural gas reserves is quite huge within the Sinopec-registered blocks,which were concentrated at the Sichuan Basin and the surrounding area,the Tarim Basin,the northern Ordos Basin,the southern Bohai Bay Basin,the southern Songliao Basin,and East China Sea Continental Shelf Basin.Since 1998,Sinopec has accelerated its exploration to some degree year by year until two large gas fields of Puguang and Daniudi were discovered,which helps Sinopec come to a new start of three-dimentional exploration in West Sichuan Basin,while in East China some new formations and new types of reservoirs were also found out to increase the explored reserves.According to the latest resource assessment on oil and gas in China,this study pointed out some views as follows:(1) although the exploration rate is as low as 6% at the exploration zones belonged to Sinopec,the untapped potential is enormous;(2) the explored geological reserves of newly-increased natural gas(gas from gas pay) discovered by Sinopec each year are predicted to be up to over 100 bcm,and the southern and western China will be the main exploration zones,and the eastern China and sea areas in the next place;(3) along with the further step into deep exploration by Sinopec,new theories on natural gas geology should be discovered and the state-of-the-art exploration techniques be applied as well.