译文：
中国石油西南油气田分公司采气工程研究所完成的带压更换气井闸阀技术，目前成功应用于12口高压气井，引起国内同行广泛xx，各大油气田纷纷邀请该所前去更换闸阀。据介绍，该项技术与传统方法相比，具有操作快捷、安全可靠、节省物力等优势，而且成本仅为过去的1/10，虽然国外已有类似工艺技术，但国内xx一家，因此获得国家专利。 石油、天然气中通常含有硫化氢、二氧化碳、卤水等腐蚀性物质，控制油气井的闸阀在这些物质作用下会坏损失效，导致油气泄漏，轻则造成生产作业困难，重则引起火灾或发生爆炸，酿成井毁人亡的惨剧。传统方法是把钻井液——由水、粘土、加重剂、有机物等按一定比例配制而成、比重大于1的液物质——泵入井内压住油气井后，更换闸阀。严重缺陷是钻井液会渗入地层堵塞油气进入井内的孔隙，从而大幅度降低油气产量和油气田的综合效益。另外，其作业过程复杂，需要的机械设备和人力多，工期长、成本高。 采气工程研究院的带压更换油气闸阀技术研究始于1997年，去年取得重大进展，核心部分是设计、制造特殊堵塞工具，基本原理是把特殊堵塞工具置入并固定在某一位置，再加压使特殊工具膨胀并堵住油气流出地面的通道，然后抓除旧闸阀、安装新闸阀。由于不使用钻井液，无堵塞井内孔隙之忧，也不需要大功率内燃机、活塞泵等机械设备。
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原文：
PetroChina Southwest Oil and Gas Field Branch of the Institute of Gas project to replace gas with a pressure valve technology, currently successfully used in 12 high pressure gas, causing widespread concern about domestic counterparts, have invited the major oil and gas to go to replace the valve. According to reports, the technology with traditional methods, with the operation of fast, safe and reliable, saving resources and other advantages, but cost is only the last 1 / 10, although similar techniques have been abroad, but domestic only one, so get national patent. Oil, natural gas usually contains hydrogen sulfide, carbon dioxide, brine and other corrosive substances, oil and gas wells control valve under the action of these substances will be corrupted failure, leading to gas leakage, ranging from the difficulties caused by production operations, while in a fire or place explosion, resulting in the tragic crash well. Traditional method is to drilling - from water, clay, weighting material, organic matter such as the preparation made by a certain percentage, the proportion of liquid material greater than 1 - press and hold the oil and gas wells pump into the well, the replacement valve. Serious defects will penetrate into the formation to plug oil and gas drilling wells into the pores, thus substantially reducing oil and gas production and oil and gas fields comprehensive benefits. In addition, the complexity of its operations, mechanical equipment and manpower needs more duration, high costs. Institute of Gas project to replace gas with a pressure valve technology began in 1997, made significant progress last year, the core part of the design and manufacture of special blocking tools, the basic principle is the special plug tool into and fixed in a position special tools and then pressurized to expand oil and gas out of the ground and blocked the channel, and then grasping than the old valve, install a new valve. Do not use as drilling fluid, wells without plugging the pore of the worry, do not need high-power internal combustion engines, piston pumps and other mechanical equipment.
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