Abstract:
LD gas field is a typical gas reservoir with low permea-bility,strong heterogeneity,low gas-bearing abundance,small-scale in distribution and great difficulty in stable gas production. Therefore,the difficulties and countermeasures of fracture technology have been analyzed and put forward in this paper,which includes fixed-column multi-fracturing,hydraulic fracturing jet-tech and low damage fracturing technology. The technology in practice has achieved good application effect and will provide guidance for low-efficien-cy gas wells development of LD gas field.