摘要
苏里格气田是典型的强非均质性致密砂岩气藏,目前已进入稳产阶段,储量资源基础需要重新落实。随开发程度提高,不同储层储量动用程度大有不同,后期部署产能建设井位、确保气田长期稳产的难度日益增大。开展已动用地质储量评价,明确气田剩余未动用地质储量,是气田技术挖潜和稳产的基础。针对此问题,以苏里格气田苏14区块盒8、山1段为研究对象,采用容积法对目的层进行储量复算,结合现有井网情况,针对不同井网控制程度,采用不同方法计算不同井网情况下的已动用地质储量,落实了已动用地质储量的规模及分布。结果显示,该区块目前已动用地质储量占复算储量基础的39.54%,实现区块长期稳产具有可行性。该研究对苏14区块后续井位部署和稳产技术政策研究有重要作用,对苏里格气田其他各区块及同类型气田的有效开发有借鉴意义。
The Sulige Gasfield is a typical tight sandstone gas reservoir.It has stepped into a stable production stage and the reservoir resource needs to be re-evaluated.The reserve producing levels of different reservoirs greatly vary with the increase of development degree,which significantly challenge further production capacity construction and long-term stable production.The evaluation of available geological reserve to clarify the remaining non-producing reserve is critical for further oil recovery and stable production.In response to this problem,The He8 and Shan1 segments in the Block Su14 of Sulige Gasfield are taken to recalculate geological reserve by volumetric method.Considering the present well pattern and its control degree,various calculation methods are adopted to recalculate the available geological reserves under different situations to determine the scale and distribution of available geological reserve.Result indicates that the available geological reserve accounts for 39.54% of the total recalculated geological reserve and it is feasible to achieve long-term stable production in this block This research plays an important role in the subsequent well deployment and stable production policy for Block Su14 and also could provide certain reference for the efficient development of other blocks in the Sulige Gasfield and similar gas reservoirs.
作者
张吉
史红然
刘艳侠
罗川又
朱亚军
Zhang Ji;Shi Hongran;Liu Yanxia;Luo Chuanyou;Zhu Yajun(PetroChina Changqing Oilfield Company,Xi＇ an,Shaanxi 710018,China;State Engineering Laboratory for Exploration and Development of Low-Permeability Oil ＆ Gas Fields,Xi＇ an,Shaanxi 710018,China)
出处
《特种油气藏》
CAS
CSCD
北大核心
2018年第3期1-5,共5页
Special Oil & Gas Reservoirs
基金
国家科技重大专项"鄂尔多斯盆地大型低渗透岩性地层油气藏开发示范工程"(2016ZX05050)
中石油股份公司科技专项"长庆气田稳产及提高采收率技术研究"(2016E-0509)
关键词
已动用地质储量
致密砂岩气藏
储量复算
苏14区块
苏里格气田
Available geological reserve
tight sandstone gas reservoir
reserve recalculation
Block Sul4
SuligeGasfield
