低渗裂缝性油藏水平井水力喷射堵水技术研究与试验

Research and test of the hydraulic jetting water shutoff technology for horizontal wells in low permeability fractured reservoir

针对长庆油田油井水平井裂缝性水淹的现状,结合储层地质特点、动态开发特征等因素,开展了水平井堵水工艺技术试验。针对压裂过程中暴性水淹的水平井,首次提出了"水力喷射堵水工艺"思路,配套研发了抗剪切系列堵剂,并进行了现场试验,取得了较好效果,实现了"降水增油"的措施目的,验证了新思路的可行性。

Experiments of water shutoff in horizontal wells were carried out,which aims at the present situation of fractured water flooding in horizontal wells in the Changqing oilfield,combining geology features of the reservoirs and dynamic development,etc.Thinking of the hydraulic jetting water shutoff was first put forward.Research and development of resistance shear plugging agents were completed,which aims at the water flooding horizontal wells.This study obtained better effect,achieved the treating purpose of ＂decreasing water and increasing oil＂,and verified the feasibility of the new thinking.