海上含H2S裸眼井测试井下工艺研究及实践

Research and Practice of Down Hole Testing Technology for Open Hole Containing H2S in Offshore Platform Operation

含H2S油气生产一直是油气行业的高危作业之一，裸眼的完井方式同样会给测试作业带来井控、测试液选型等一系列工程问题。含H2S裸眼井测试综合了上述两种作业的难度，对井下测试工艺要求十分苛刻。渤海油田通过对井下工具的改良和创新使用，解决了裸眼和含H2S气体两大难题对井下工艺的影响，并通过了实践的检验，安全高效地完成了作业，形成了一套特色井下测试工艺，为以后海上平台含H2S裸眼井测试作业奠定了基础。

The production of oil and gas containing H2S was considered as a kind of highly hazardous operation. The open hole completion would also induce a range of engineering issues, such as well control, testing liquid （fluid） selection. The H2S borehole test synthesized the difficulty of the two operations mentioned above, in which strict technical requirement was needed for down hole testing. In Bohai Oilfield, the influence of open hole operation and H2S contained gas on the down hole operation technology is avoided through tool improvement and innovated application, and it is checked and proven in practice, thus field operations are effectively implemented, and a set of special down hole testing technologies are established, and it lays a basis for testing operations of open hole containing H2S on offshore platform.