针对中国复杂地质条件和储气库周期性大流量强注强采交变载荷工况,建立了包括选址评价、指标设计、钻完井、地面工程建设、风险预警和评估等方面的气藏型储气库建库关键技术,并总结了矿场应用实效。建立了开发中后期构造破碎气藏建库选址圈闭密封性评价技术,提出了以非均质水侵储集层有效库容量设计为核心的建库关键指标设计方法,建立了适应超深超低压地层和交变载荷工况的安全钻井、高质量固井技术和高压大流量地面注采工程优化技术,实现了高压注气压缩机等储气库地面核心装备国产化,建立了储气库地下、地面全系统风险预警和评估技术。5项关键技术成功应用于新疆呼图壁等6座气藏型储气库群的选址、设计、建设和运行,方案设计主要指标与实际动态高度吻合,已建成调峰能力超过75.0×108 m3,实现了建设和运行高效且零事故。图3参33
马新华
,
郑得文
,
申瑞臣
,
王春燕
,
罗金恒
,
孙军昌
. 利用海拔差异模拟增温对高山森林土壤溶解性有机碳和有机氮含量的影响[J]. 石油勘探与开发, 0
: 1
-1
.
DOI: 10.11698/PED.2018.03.00
In view of complex geological characteristics and alternating loading conditions associated with cyclic large amount of gas injection and withdrawal in underground gas storage (UGS) of China, a series of key gas storage construction technologies were established, mainly including UGS site selection and evaluation, key index design, well drilling and completion, surface engineering and operational risk warning and assessment and so on. Theses technologies practical applications were discussed and summarized. Firstly, trap dynamic sealing capacity evaluation technology for UGS converted from faulted gas reservoir was worked out. A key index design method mainly based on the effective gas storage capacity design for water flooded heterogeneous gas reservoirs was proposed. To effectively guide the engineering construction of UGS, the well drilling, high quality cementing and high pressure and large flow surface injection and production engineering suitable for long-term alternate loading-unloading conditions and ultra-deep and ultra-high temperature formation were developed. The core surface equipment like high pressure gas injection compressor can be manufactured by our own. Last, the operational risk warning and assessment technology for UGS was set up. The above 5 key technologies have been utilized in site selection, development scheme design, engineering construction and annual operations of 6 UGS groups, including Hutibi, Xiangguosi, Shuang 6 UGS, et al. To date, the 6 UGS groups have over 7.5 billion cubic meters of working gas volume and all the storage facilities have been running efficiently and safely.