石油设备网讯 据世界天然气网站4月9日消息 澳大利亚液化天然气公司Santos在库珀盆地的Moomba南部Patchawarra储层评估项目的第一阶段确认了大量的天然气资源。
Santos表示，该项目针对的是花岗质砂岩和花岗岩裂缝的两个新项目，这两个项目可能会增加大量的新资源。
Moomba南部油田较深的Patchawarra储层系统被评估为在厚层、质量良好、充满气体的致密砂岩储层中含有大量的潜在天然气资源。
该公司还补充说，八口评价井的总深度从3034米到3303米不等，而且都是交叉产气层。
井中的天然气产气量从16米到64米不等，符合钻前或有资源估计的假设。在4到6个阶段之间对油井进行了测试。
初步的气样分析表明，与邻近和上覆的Moomba油田生产区相比，天然气液体含量更高，二氧化碳含量更低。目前正在进行额外的分析，以确认气体成分和相关的气体液体体积。
Santos表示，目前已经测试了七口评价井，单井稳定天然气流量为870万标准立方英尺/天。其中一口井被封堵并废弃。
除Patchawarra外，Toolachee、Daralingie和Epsilon储层的显著优势也得到了证实，这些井在接近原始压力的情况下勘探到了较好的孔隙度和渗透率。
Santos 说：“评估项目的结果将发布Moomba南部项目的现场开发规划。计划于2019年底在Moomba南部进行进一步钻探。进一步的钻探可能包括水平井，以进一步评估现场。”
Santos常务董事兼首席执行官Kevin Gallagher表示：“我很高兴Moomba南部一期评估项目已经确认了一个重要的天然气资源，并在库珀新建了7口井。”
值得注意的是，Moomba南部评估项目位于PPL 8和PPL 9，由Santos运营（66.6%），Beach作为合作伙伴持有33.4%的股份。
吴恒磊 编译自 世界天然气
原文如下：
Santos confirms Moomba South ‘significant’ gas resources
Australian LNG player Santos has confirmed significant gas resources following Phase 1 of the Moomba South Patchawarra Formation appraisal program in the Cooper Basin.
Santos said that the program targeted two new plays in the Granite Wash and Fractured Granite which could have the potential to add significant new resources.
The Patchawarra reservoir system on the deeper flanks of the Moomba South field was assessed to contain significant gas potential in thick, well-developed, gas-charged tight sandstone reservoirs.
The company added that eight appraisal wells were drilled to total depths ranging from 3,034 to 3,303 meters and all intersected gas pay.
Gas pay in the wells ranged from 16 to 64 meters, in line with assumptions underpinning pre-drill contingent resource estimates. The wells were stimulated with between four to six stages.
Preliminary gas sample analysis indicates a higher natural gas liquids content and lower CO2 content compared to the adjacent and overlying Moomba field production areas. Additional analysis is underway to confirm the gas composition and associated gas liquids volumes.
Santos stated that seven of the appraisal wells have now been tested and brought online with a stabilized single-well gas flow of 8.7 mmscf/d. One well was plugged and abandoned.
In addition to the Patchawarra, significant upside in the Toolachee, Daralingie, and Epsilon reservoir complexes were also demonstrated with wells encountering near virgin pressures and better than expected porosity and permeability.
“The results of the appraisal program will inform field development planning for the Moomba South project. Planning is underway to undertake further drilling on Moomba South towards the end of 2019. This further drilling may include horizontal wells to further appraise the field,” the LNG player said.
Santos managing director and CEO Kevin Gallagher stated: “I am very pleased that the Moomba South Phase 1 appraisal program has confirmed a significant gas resource and resulted in seven new wells now producing in the Cooper.”
It is worth noting that the Moomba South appraisal program is located in PPL 8 and PPL 9, operated by Santos 66.6% with Beach as a partner with a 33.4% stake.
