Production strategy plans assesment method, system and program product
AssigneesRepsol, S.A., International Business Machines Corporation
InventorsSonia Mariette Embid Droz, Ruben Rodriguez Torrado, Mohamed Ahmed Hegazy, David Echeverria Ciaurri, Ulisses T. Mello
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Abstract
A system, method and computer program product for generating well location plans and field development plans assessing and ranking the potential of the different plans with a small number of parameters or initial conditions, thus considerably reducing the decision time for taking a particular strategy when compared with the techniques described in the art.
Claims20
A method of computer generating production a strategy suitable for the exploitation of a reservoir of hydrocarbon in a natural environment and exploiting said reservoir, wherein said natural environment is limited in its surface by a domain (Ω), said method comprising:
- determining a reference system in the domain (Ω);
- determining an opportunity index OI as a function defined in the domain (Ω) providing the local production potential as a function of the location and the local properties;
- determining a radius of drainage rd providing the radius of drainage of the hydrocarbon at the end of life of a production well as a function of the opportunity index rd=rd(OI);
- identifying production behavior zone cluster or clusters (C1, C2) as locations with similar local production behavior;
- for each cluster (C1, C2) to be exploited:
- determining a representative value of the opportunity index OI (OI1, OI2) and its corresponding radius of drainage rd=rd(OI), (rd1, rd2),
- providing an angle α (α1, α2),
- generating a discretization of the cluster according to a grid with a regular pattern wherein the distance between the closest nodes of the pattern is 2*rd, and the orientation of the grid, selecting a reference line in the grid, in the reference system is the angle α, and
- determining the production well locations (P1, P2) in the cluster (C1, C2) as the coordinates of the nodes of the grid located within the cluster (C1, C2);
- and
- drilling wells at determined said production well locations (P1, P2).
A production strategy generation and reservoir exploitation system comprising:
- means for determining a reference system in a domain (Ω), wherein said domain (Ω) limits the natural environment surface of a reservoir of hydrocarbon;
- means for determining an opportunity index (OI) as a function defined in the domain (Ω) providing the local production potential as a function of the location and the local properties;
- means for determining a radius of drainage (rd) of the hydrocarbon at end of production well life responsive to said opportunity index;
- and
- means for identifying one or more production behavior zone clusters (C1, C2) as locations with identified similar local production behavior;
- means for determining a representative value of the opportunity index OI (OI1, OI2) to be exploited and a corresponding radius of drainage (rd1, rd2) for each cluster (C1, C2);
- means for providing an angle α (α1, α2) for said each cluster (C1, C2);
- means for generating a discretization of said each cluster according to a grid with a regular pattern wherein the distance between the closest nodes of the pattern is 2*rd, and the orientation of the grid, selecting a reference line in the grid, in the reference system is the angle α;
- means for determining production well locations (P1, P2) in said each cluster (C1, C2) as the coordinates of grid nodes located within said each cluster (C1, C2);
- and
- means for drilling wells at determined said production well locations (P1, P2).
Dependencies are inferred from the claim text.