Petroleum Exploration and Development >

2018 , Vol. 45 >Issue 3: 489 - 499

DOI: https://doi.org/10.11698/PED.2018.03.14

PETROLEUM ENGINEERING

Key technologies and practice for gas field storage facility construction of complex geological conditions in China

  • MA Xinhua ,
  • ZHENG Dewen ,
  • SHEN Ruichen ,
  • WANG Chunyan ,
  • LUO Jinheng ,
  • SUN Junchang
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  • 1. Key Laboratory of Underground Storage of Oil and Gas Engineer of China National Petroleum Corporation, Langfang 065007, China;
    2. PetroChina Southwest Oil & Gas Field Company, Chengdu 610051, China;
    3. PetroChina Research Institute of Petroleum Exploration and Development, Langfang 065007, China;
    4. CNPC Drilling Research Institute Corporation, Beijing 100195, China;
    5. PetroChina Planning Research Institute, Beijing 100083, China;
    6. CNPC Tubular Goods Research Institute, Xi’an 710065, China;

Received date: 2018-02-22

  Revised date: 2018-04-20

  Online published: 2018-05-24

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Abstract

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, etc. The effect of field application was discussed and summarized. Firstly, trap dynamic sealing capacity evaluation technology for conversion of UGS from the fault depleted or partially depleted gas reservoirs. 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 safe well drilling, high quality cementing and high pressure and large flow surface injection and production engineering optimization suitable for long-term alternate loading condition and ultra-deep and ultra-low temperature formation were developed. The core surface equipment like high pressure gas injection compressor can be manufactured by our own. Last, the full-system 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, e.g. the Hutubi UGS in Xinjiang. To date, designed main indexes are highly consistent with actural performance, the 6 UGS groups have the load capacity of over 7.5 billion cubic meters of working gas volume and all the storage facilities have been running efficiently and safely.

Key words： gas field storage; trap dynamic sealing capacity; key index design; effective storage volume; drilling and completion in ultra-deep and ultra-low pressure formation; alternating load; surface engineering; core equipment; risk assessment and control

Cite this article

MA Xinhua , ZHENG Dewen , SHEN Ruichen , WANG Chunyan , LUO Jinheng , SUN Junchang . Key technologies and practice for gas field storage facility construction of complex geological conditions in China[J]. Petroleum Exploration and Development, 2018 , 45(3) : 489 -499 . DOI: 10.11698/PED.2018.03.14

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