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加密钻井在致密烃类油田提高油气采收率中起着重要作用,但是在低渗透油田上对加密钻井潜力进行量化评价是比较困难的,主要的原因是岩性、井距、完井作业和油田油井数量不同。同时,随着能源需求的增长和有利的油气价格,世界上越来越多的油田正在进行加密钻井。对于许多低渗透油田,用于确定加密潜力的油藏综合研究通常都要耗费大量的时间和资金。文章提出了一种可供选择的方法,利用这种方法进行详细的储层研究可以确定致密烃盆地中钻加密井的潜力。该方法能在几周内从上千口井中快速评价加密钻井的潜力。几个油田的实例也证实了该方法在成熟低渗透气藏盆地的应用。
Encryption drilling plays an important role in enhancing hydrocarbon recovery in tight hydrocarbon fields. However, it is difficult to quantitatively evaluate the potential of adiabatic drilling in low permeability oilfields. The main reasons are lithology, well spacing, well completion and The number of oil wells varies. At the same time, more and more fields in the world are carrying out infill drilling with increasing energy demand and favorable oil and gas prices. For many low permeability oilfields, integrated reservoir research to determine the potential for encryption often takes significant time and money. The paper presents an alternative method by which detailed reservoir studies can determine the potential for drilling tight wells in tight hydrocarbon basins. The method quickly evaluates the potential of infill drilling from thousands of wells in just a few weeks. Several oilfield examples also confirm the application of this method in mature low permeability gas reservoirs.