In order to meet the well killing requirements of high-pressure oil and gas wells during workover in Liaohe Oilfield and prevent solid particles from causing reservoir pollution, we developed a series of low-cost high...In order to meet the well killing requirements of high-pressure oil and gas wells during workover in Liaohe Oilfield and prevent solid particles from causing reservoir pollution, we developed a series of low-cost high-density non-solid workover fluids and studied their matching preparation process through a large number of laboratory experiments. This technology has been proved to be the first in China through novelty search, and can provide solid technical support for oilfield companies to engage in workover construction in Liaohe Oilfield in oil and gas wells with formation pressure coefficient lower than 2.3 in the future.展开更多
文摘In order to meet the well killing requirements of high-pressure oil and gas wells during workover in Liaohe Oilfield and prevent solid particles from causing reservoir pollution, we developed a series of low-cost high-density non-solid workover fluids and studied their matching preparation process through a large number of laboratory experiments. This technology has been proved to be the first in China through novelty search, and can provide solid technical support for oilfield companies to engage in workover construction in Liaohe Oilfield in oil and gas wells with formation pressure coefficient lower than 2.3 in the future.