正电胶钻井液在塔里木松散砂层多、造浆弱的5000～6000m超深井和东部胜利、辽河2500m左右的浅井和定向井、水平井中获得了成功,全国5个以上油田已钻井830多口。而使用正电胶泥浆在东部油田钻深度使用4000m的大位移定向井,大港张巨河构造滩海地区ZH2-2井是全国第一口。这口井明化镇、东营组造浆井段长(东营组底界2700m),且沙河 Positive charge rubber drilling fluid in the Tarim loose sand and more weak 5000 ~ 6000m ultra-deep well and the eastern victory, about 2500m Liaohe shallow wells and directional wells, horizontal wells have been successful, the country has more than 5 oilfield drilling more than 830 . The use of positive grout in the eastern oilfield drilling depth of 4000m using the large displacement directional wells, Dagang Changjiang River beach area ZH2-2 structure is the first port. This well Ming town, Dongying formation muddy section (Dongying bottom 2700m), and Shahe