四川石油管理局井下作业处两个研究课题成果 ,顺利通过局级验收、并获得好评。在四川石油管理局召开的“油气田开发提高采收率导向技术”项目验收会上 ,由井下作业处工艺研究所承担的先导性试验课题《四川气田多产层分层酸化及砂岩气藏加砂压裂新工艺》、《四川低渗气藏压裂酸 Sichuan Petroleum Administration underground operations at the two research projects, successfully passed the bureau-level acceptance, and received favorable comments. At the inspection and acceptance meeting of the “Oil and Gas Field Development and Enhanced Oil Recovery-Oriented Technology” Project held by Sichuan Petroleum Administration, the pilot project undertaken by the Research Institute of Downhole Workplace Technology, “Layered Acidification and Multi-layer Sandification of Sandstone Gas Reservoir with Sand in Sichuan Gas Field Fracturing New Technology ”," Sichuan low permeability gas reservoir fracturing