Integration of hydrochemical and hydrogeological information in the geological and technological models of Cenomanian gas fields

In the article proposed integration method of hydrochemical monitoring data of the development on the creation and updating of geological and technological models of the Cenomanian gas fields for reasonable prediction of the time, quantity and types of workover (WO) on gas wells. Implementation of the proposed method allows real-time monitoring and long-term forecasting of gas-hydrodynamic conditions in the reservoir, increase the accuracy of calculation of technological development parameters, to obtain the address well forecast needed for WO, including waterproofing works and well’s retirement to inactive fund. Analysis of results obtained using the proposed method of prediction allows to get more informed of the technical and economic evaluation of WO and development of field in general.
Materials and methods
Math modeling of hydrodynamic process.
Results
The main result is the integration method of hydrochemical and hydrogeological information in geological and technological modelling of gas fields. The method has been implemented practically in the simulation of joint development’s of the Cenomanian deposits of Vyngayakhinskoye and Ety-Purovskoye fields. Predictive strategies of development have been calculated, recommendations on the time, quantity and types of WO have been required.
Сonclusions
Implemented method makes it possible to get long-term forecasting of water floodingand improve quality of development engineering through more informed prediction of well’s retirement to inactive fund, recommendations on the time, quantity and types of WO. Based on the development experience is worth noting that the timely holding of waterproofing work on gas wells increases their turnaround time, what leads to increased efficiency of the fund’s exploitation. Method’s versatility allows to implement it on development engineering for other Cenomanian fields.