庆深气田深层勘探钻井配套技术研究与应用

Research and Application of Systematic Technologies for Deep Exploration Drilling in Qingshen Gas Field

针对庆深气田深部地层的地质特点,开展深层天然气勘探钻井配套技术研究。在非储层试验深层提速配套钻井技术、空气钻井工艺技术;在储层采用欠平衡钻井、充气钻井工艺和储层保护技术。通过近2年来在庆深气田深探井试验了23口井深层提速钻井配套技术,13口井欠平衡钻井技术,1口充氮气钻井技术,1口空气和充空气钻井技术,大幅度提高了钻井速度,及时发现和有效保护了气层,取得了重大的技术突破,为松北深层徐家围子地区天然气勘探展现1000亿m3储量规模起到了关键技术作用。

According to the geological characteristics of deep formation in Qingshen gas field, research was made on systematic technologies for deep exploration drilling. In recent 2 years, through the tests on systematic technologies for deep drilling with higher ROP, underbalanced drilling, nitrogen filled drilling; air and air filled drilling, important technical breakthrough was made with penetration rate greatly increased, and gas layer was found and protected in time, which has played a key role in the demonstration of reservoir of 1.0 × 10^12 m^3 natural gas in Songbei district.