The Application of Non-solid Phase Gas Well Reservoir Protecting Fluid in Kelamayi Gas Field

With the development of Kelamayi gas field of Xinjiang oil field, the reservoir protection to high temperature high pressure gas well is more important then ever. In order to reducing the injure of solid phase and working fluid to gas reservoir, non-solid phase gas well reservoir protecting fluid system was studied. It is non-solid phase, density range is 1.0g/cm³-2.30g/cm³, short fluid loss, low viscosity, low injure and good fluid stability. Being a high pressure gas well, casing patch on DX17 is proceeded with gas zone opened. Non-solid phase gas well reservoir protecting fluid system is chosen as workover fluid, its density is 1.50g/cm³, two perforated interval is casing patched inside non-solid phase gas well reservoir protecting fluid system. During 15 days well workovering, non-solid phase gas well reservoir protecting fluid system is stable and uniform, well workover is fair done, and the effect is excellent.