DEVELOPMENT TECHNOLOGY FOR ABNORMAL HIGH PRESSURE AND LARGE SCALE MONO-BLOCK GAS FIELD :TAKING KELA 2 GAS FIELD AS THE EXAMPLE
大型整装异常高压气田开采技术研究――以克拉2气田为例

Kela 2 gas field is a world level gas field located in the north edge of Tarim basin which is characterised with large scale,monoblock, high gas column, abnormal high pressure, high well rate, difficulty in well completion and etc. In order to develop Kela 2 gas field with high efficiency, a series of gas field production techniqueses were fromed through research work which include: detailed three-dimensional geologic model forming technology for high steep structure and very thick sandstone reservoir, productivity evaluation technology for abnormal high pressure and large volume gas field, rock transmutation prediction for abnormal high pressure gas reservoir, perforating and completion technology for thick gas reservoir, anti-leaning and increasing drilling speed technology for super high pressure and steep structure gas reservoir, anti gas channeling cement technology for high pressure gas field, gas production technology for large sized tubing string. The achievements of these researches have settled the foundation for the development of Kela 2 gas field which is the main source of west to east gas transmission project, and will be taken as a reference for the development of other similar high pressure gas fields.