钻井中心是水下井口及其周边接入设施的总称，其布置设计是水下生产系统设计的重要内容，主要包括水下井口布局、管汇形式、海管接入布置、飞线布置等。介绍了水下生产系统钻井中心的布置原则和设计要素，并具体针对南海某气田的工程实例，对其钻井中心布置的设计考虑和设计方法进行了说明，体现了气田系统设计的合理性。

The drill center of subsea production system refers to the subsea wellhead and the surrounding access facilities. The layout design of drill center is an important part of the engineering of subsea production system. It mainly includes subsea wellhead and manifold layout, subsea pipeline approaching layout, flying lead layout, etc. We introduce the principle and design considerations of subsea production system drill center layout. Especially, for a South China Sea gas field, the drill center layout design considerations and design methods are illustrated, embodying the system design rationality.