油气藏评价与开发
油氣藏評價與開髮
유기장평개여개발
2014年
2期
55-60
,共6页
排采制度%解吸压力%五段三压法%高煤阶%延川南
排採製度%解吸壓力%五段三壓法%高煤階%延川南
배채제도%해흡압력%오단삼압법%고매계%연천남
production system%desorption pressure%five sections three pressure method%high coal rank%South Yanchuan block
延川南工区5亿方煤层气产能建设已拉开序幕，形成一套完整的排采理论和生产制度显得尤为重要；由于工区地质资料的局限性、煤岩力学特征的敏感性以及煤层气渗流机理的复杂性等原因，目前生产制度尚处于摸索阶段。从生产机理出发，通过对高煤阶煤岩力学试验模型的分析，探索流压降幅与储层保护之间的规律；在研究定量化排采的基础上，提出“五段三压法”的排采制度；同时重点探讨了储层压力、解吸压力和稳产压力等关键参数的预测方法，为延川南煤层气田的开发提供指导。
延川南工區5億方煤層氣產能建設已拉開序幕，形成一套完整的排採理論和生產製度顯得尤為重要；由于工區地質資料的跼限性、煤巖力學特徵的敏感性以及煤層氣滲流機理的複雜性等原因，目前生產製度尚處于摸索階段。從生產機理齣髮，通過對高煤階煤巖力學試驗模型的分析，探索流壓降幅與儲層保護之間的規律；在研究定量化排採的基礎上，提齣“五段三壓法”的排採製度；同時重點探討瞭儲層壓力、解吸壓力和穩產壓力等關鍵參數的預測方法，為延川南煤層氣田的開髮提供指導。
연천남공구5억방매층기산능건설이랍개서막，형성일투완정적배채이론화생산제도현득우위중요；유우공구지질자료적국한성、매암역학특정적민감성이급매층기삼류궤리적복잡성등원인，목전생산제도상처우모색계단。종생산궤리출발，통과대고매계매암역학시험모형적분석，탐색류압강폭여저층보호지간적규률；재연구정양화배채적기출상，제출“오단삼압법”적배채제도；동시중점탐토료저층압력、해흡압력화은산압력등관건삼수적예측방법，위연천남매층기전적개발제공지도。
In South Yanchuan block, 500 million cubic meters of coalbed methane (CBM) production is under construction, there-fore it is particularly important to form a complete set of production theory and production system. Due to the limitation of geologic data, the sensitivity of coalbed mechanical property and the complexity of CBM percolation mechanism, the current production sys-tem is still at research stage. Starting from production mechanism, through analyzing coalbed mechanical test model of high coal rank, this paper researched the laws between flowing pressure drop and reservoir protection. The so called five sections three pres-sure method was proposed. This paper also focused on the prediction of key parameters, such as reservoir pressure, desorption pres-sure and stable pressure, thereby providing guidance for exploring CBM of South Yanchuan block.
