Construction
Evaluation of areas for infill drilling
- Customer:
- Çalik Enerji
- Start date:
- 2015-06-12
- Object:
- Productive formations of the BV group
- Region:
- Turkmenistan
About the project
- Client
- +993 (12) 98-22-69
- Due date
- info@aziyayollary.com
- Due date
- проспет Арчабиля, д.80 Ашхабад, Туркменистан
Work with us
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- About the project
- To ensure the complete development of reserves, an analysis of the drained volume of the development object was carried out at the macro level - in the inter-dome space and at the micro level - in the inter-well space. Based on drainage data, zones with undeveloped reserves were obtained, ranking and selection of drilling priorities for these areas were carried out.
- Customer's task
- Obtaining data on areas with residual and undeveloped oil reserves to improve the efficiency of well and lateral drilling. Prioritizing and ranking drilling points.
- Our approach
- At the core lies a set of modified probabilistic-statistical methods for analyzing time series. The initial data include wellhead measurements of daily (monthly) liquid, water, oil withdrawals, dynamic levels, etc., as well as measurements of water injection volumes in injection wells. At the stages of evaluating the quality of the initial information and interpreting the processing results, data on the causes of well shutdowns (change in pump regime, hydraulic fracturing, well stimulation, perforation, etc.) are used.
The basis for the analysis was the data from the report on the localization and ranking of areas of residual reserves based on an updated hydrodynamic model, according to which 11 promising zones for drilling wells were identified.
An assessment was made of production data for wells in the considered zones of the productive formation, an analysis of the interaction of production and injection wells and an analysis of the selection of production wells was carried out. Based on the results of the analysis, from the 11 promising zones for drilling wells identified by the hydrodynamic model, zones 3, 1, 17, 2 were excluded as unpromising, in which interaction between wells was observed. Analysis of the work of the remaining zones did not reveal any correlation between the wells, which allowed them to be recommended for infill drilling. The ranking of areas according to drilling priority has also changed.