The Chuandong North Tibet Acidification Phase Of Carbonate Gas Fracturing Technology Research

North southwest eastern Sichuan province the marine facies carbonate rocks domain was the exploration development important reserve base of southwest subsidiary company of SINOPEC .2005 year's end before the subsidiary company north eastern Sichuan province local already well drilling 28, the most wells drilled have met the good showings level. But because north eastern Sichuan province local gas pool geology situation complex, high contains the hydrogen sulfide and buries the depth, the construction difficulty high southwest, in Canada petrifies the subsidiary company at present the area not to carry on the peracid construction north eastern Sichuan province, has not acidified the compression fracture the success experience, therefore, according to, studies the acidified compression fracture craft which is suitable, highly effective develops this gas pool, to increases the individual well productivity, enhances the gas pool recovery ratio to have importantly presently has the important practical significance.This article analyzed north eastern Sichuan province the local marine facies carbonate rocks reservoir compression fracture acidification transformation technology multitudinous difficulty, Based on in the domestic and foreign literature investigation and study foundation, proposed uses method development acidification compression fracture craft and its the necessary engineering research and so on theoretical analysis, analogy analysis, scene experiment technical route and the attack mentality, through the system summary earlier period acidification compression fracture construction well success and the defeat experience and the model earlier period research results, unifies to the well level geology characteristic further understanding and the newest experimental achievement development research, gradually consummates thus finally forms is suitable north eastern Sichuan province the marine facies carbonate rocks reservoir acid liquor formula and Acidified compression fracture technique. These will provide the important theory basis for the next step of scene construction transformation.