钻井液与完井液2011，Vol.28Issue(4)：57-59,3.
Thingadong-1复杂高压气井大尺寸套管固井技术
刘振通 1吴洪波 1宋元洪 1周坚 1钟福海 1宋武强 2陈光 1李庆云 1党冬红1
作者信息
- 1. 渤海钻探工程有限公司第一固井公司,河北任丘
- 2. 渤海钻探工程有限公司定向井技术服务分公司,河北任丘
- 折叠
摘要
Abstract
The well Thingadong-1 is an exploration well in D Block Myanmar. The bit of Φ 444.5 mm is used in the second hole, and the depth of that is 1,720.52 m. When drilling to the depth of 1,712.32 m, the overflow is caused by gas invasion is encountered, and the balance pressure is established by drilling fluid with density of 1.48 g/cm3. The electric logging shows there are 14 sets of water layers, 19 sets of gas-in-water layers, one set of gas and water with layer and one set of bottom 1,710,6-1,715.0 m gas layer. After set the casing of Φ> 339.7 mm at the depth of 1,704.56 m, a heavy mud loss without mud on ground is encountered at the time of circulation. The lost circulation drilling fluid is intermittently pumped by 264 m3 with small volumetric rate, and kept stable for 46 h, then plugging successfully (No test of the lost pressure of the thief zone). Moreover, gas cut, water channeling and other factors affecting the quality of cementing in weightlessness. Therefore, the leading drilling fluid with low viscosity and gel, weighted spacer, micro-dilatancy and non-penetrative gas block cement slurry shall be used to operate. In the cementing operation, with the leakage of 5 m3 cement slurry, rubber and fiber blocking agents work well, and the cementing job quality is excellent.关键词
固井/高压气井/水层/漏失/微膨胀非渗透防气窜水泥浆/先导钻井液/加重隔离液/缅甸Key words
Cementing/ High pressure gas well/ Water layer/ Lost circulation/ micro-dilatancy and non-penetrative gas block cement slurry/ Leading drilling fluid/ Weighted spacer/ Myanmar分类
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刘振通,吴洪波,宋元洪,周坚,钟福海,宋武强,陈光,李庆云,党冬红..Thingadong-1复杂高压气井大尺寸套管固井技术[J].钻井液与完井液,2011,28(4):57-59,3.
