| With the progress of science and technology, the horizontal wells are applied in oil and gas field development more and more, acidizing, fracturing, which has become a top priority to increase production by utilizing of the horizontal wells for the development of routine, non conventional energy, especially for low permeability, exetre-low permeability tight reservoir.According to the Great Wall Drilling Company’s directions that it focuses on the development of international petroleum engineering technology, developing advanced characteristics technologies are not only the necessary ways to expand the market and to enhance core competitiveness, but also to meet the international market technology demand better. Aiming at oilfield development market needs in Middle East and African countries, as well as the domestic market needs, we need to carry out research urgently on acidizing technologies for horizontal wells.This research carried out based on the mentioned background for Iran reservoir characteristics to utilize acidizing technology research. To optimize the acidizing fluid formula and acidification additives; to research on bottom seal packer during horizontal well section acidification; to research on horizontal well low-damage acidification diverting agent; to optimize low-damage acidizing formula and evaluate the performance of acid; to research the acidizing tools for horizontal wells continuous oil-pipings, which with successful results on Iran construction sites.By means of the researches on the horizontal well acidizing technology on the oilfield of Iran azadegen, Oman and the Middle East, we gain our own characteristics of acidification and horizontal well acidizing technology. Making acidizing technology foundation of multibranch horizontal wells and complex wells by promoting our company’s service ability of acidification at home and abroad to develop the market of acidification in central Asia by further researches on acidizing technology. |
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