Ukuhlola Okokuqala Kwe-100-Million-Ton Offshore Oilfield E-China’s Deep-Ultra-Deep Clastic Rock Formations

Ngomhla ziyi-31 kuNdasa, i-CNOOC imemezele ukutholakala kwe-Huizhou 19-6 ye-oyili eShayina enezinqolobane ezingaphezu kwezigidi eziyi-100 zamathani eMpumalanga yeNingizimu yeSikhumulo seLwandle. Lokhu kubonisa iShayina i-oyili enkulu yokuqala ehlanganisiwe emanzini aphakeme kakhulu ezindaweni zokwakheka kwe-clastic, kukhombisa amandla amakhulu okucwaninga ezinqolobaneni ze-hydrocarbon ezijulile ezweni.

位于珠江口盆地的惠州凹陷，距离深圳约170公里的海域，惠州19-6油田的平均水深为100米。生产测试表明，每口井的日产量为413桶原油和68,000立方米天然气。通过持续的勘探努力，该油田已实现认证的地质储量超过1亿吨油当量。

The "Nanhai II" drilling platform is conducting drilling operations in the Huizhou 19-6 oilfield waters

In offshore oil and gas exploration, formations with burial depths exceeding 3,500 meters are technically classified as deep reservoirs, while those beyond 4,500 meters are categorized as ultra-deep reservoirs. Exploration in these deep-ultra-deep marine environments presents formidable engineering challenges, including extreme high-temperature/high-pressure (HT/HP) conditions and complex fluid dynamics.

Clastic rock formations, while serving as primary hydrocarbon-bearing reservoirs in deepwater settings, exhibit characteristically low permeability characteristics. This inherent petrophysical property significantly compounds the technical difficulties in identifying commercially viable, large-scale oilfield developments.

Globally, approximately 60% of newly discovered hydrocarbon reserves in recent years have been sourced from deep formations. Compared with mid-shallow reservoirs, deep-ultra-deep formations exhibit distinctive geological advantages including elevated temperature-pressure regimes, higher hydrocarbon maturity, and proximal hydrocarbon migration-accumulation systems. These conditions are particularly conducive to the generation of natural gas and light crude oil.

Notably, these formations contain substantial untapped resources with relatively low exploration maturity, positioning them as strategically critical replacement zones for sustaining future reserve growth and production enhancement in the petroleum industry.

Offshore clastic rock reservoirs in deep-ultra-deep formations tend to produce sand and silt during oil/gas extraction, posing risks of abrasion, clogging, and erosion to subsea Christmas trees, manifolds, pipelines, as well as topside processing equipment. Our Highly anti-erosion Ceramic Hydrocyclone Desanding Systemshave been widely used in oil and gas fields for years. We are confident on that, in addition to our advanced desanding solutions, the newly discovered Huizhou 19-6 Oil & Gas Field will also adopt our High-efficiency Hydrocyclone Oil Removal System、 Compact Injet-Gas Flotation Unit (CFU) na nezinye imikhiqizo.