BUG: support for E300 and tentative IX for Phases in restart

Phases are given in INTEHEAD record 14. For Eclipse 100 numbers
are 1-7, while E300 operates with 0 and IX with undefined (-2345).
For IX there seems to be other issues on reading

src/xtgeo/grid3d/_ecl_output_file.py

@@ -59,6 +59,7 @@ class UnitSystem(Enum):
 
 @unique
 class Phases(Enum):
+    E300_GENERIC = 0
     OIL = 1
     WATER = 2
     OIL_WATER = 3

src/xtgeo/grid3d/_find_gridprop_in_eclrun.py

@@ -65,6 +65,7 @@ def filter_lgr(generator):
         "SOIL": 0.0,
     },
     Phases.OIL_WATER_GAS: dict(),
+    Phases.E300_GENERIC: dict(),
 }
 
 

tests/test_grid3d/snapshots/test_grid_property/test_simpleb8_case/E100_blackoil/PRESSURE_E100_BO

@@ -0,0 +1,11 @@
+[[[269.9453125 -- 270.1187438965]
+  [269.9519958496 270.0467834473 --]]
+
+ [[269.9609069824 270.0378723145 270.1144714355]
+  [269.9542236328 270.0423278809 270.1266784668]]
+
+ [[269.9818725586 270.047668457 270.1114196777]
+  [269.956451416 270.0378723145 270.1205749512]]
+
+ [[269.9742736816 270.0467834473 270.1083679199]
+  [269.9635925293 270.0333862305 270.1077575684]]]

tests/test_grid3d/snapshots/test_grid_property/test_simpleb8_case/E100_blackoil/SOIL_E100_BO

@@ -0,0 +1,11 @@
+[[[0.0335517526 -- 0.0]
+  [0.0315505862 0.003243804 --]]
+
+ [[0.02888304 0.0059047341 0.0]
+  [0.0308837295 0.0045742989 0.0]]
+
+ [[0.0226168633 0.0029776692 0.0]
+  [0.0302168131 0.0059047341 0.0]]
+
+ [[0.0248830914 0.003243804 0.0]
+  [0.028082788 0.007235229 0.0]]]

tests/test_grid3d/snapshots/test_grid_property/test_simpleb8_case/E300_blackoil/PRESSURE_E300_BO

@@ -0,0 +1,11 @@
+[[[269.9447937012 -- 270.1181945801]
+  [269.9514770508 270.0462646484 --]]
+
+ [[269.9604187012 270.037322998 270.1139221191]
+  [269.9537353516 270.0417785645 270.1260986328]]
+
+ [[269.9813537598 270.0471496582 270.1108703613]
+  [269.9559631348 270.037322998 270.1200256348]]
+
+ [[269.9737854004 270.0462646484 270.1078186035]
+  [269.9630737305 270.0328674316 270.107208252]]]

tests/test_grid3d/snapshots/test_grid_property/test_simpleb8_case/E300_blackoil/SOIL_E300_BO

@@ -0,0 +1,11 @@
+[[[0.0335402489 -- 0.0]
+  [0.0315398015 0.0032426515 --]]
+
+ [[0.0288731679 0.0059027206 0.0]
+  [0.0308731422 0.0045726863 0.0]]
+
+ [[0.0226091091 0.0029766446 0.0]
+  [0.0302064847 0.0059027206 0.0]]
+
+ [[0.0248745903 0.0032426515 0.0]
+  [0.0280731786 0.0072327554 0.0]]]

tests/test_grid3d/snapshots/test_grid_property/test_simpleb8_case/E300_composite/PRESSURE_E300_COMP

@@ -0,0 +1,11 @@
+[[[400.6692199707 -- 400.7821044922]
+  [400.6722717285 400.7158203125 --]]
+
+ [[400.6763916016 400.711730957 400.7778015137]
+  [400.6733093262 400.7137756348 400.7900695801]]
+
+ [[400.6860046387 400.7162475586 400.7747192383]
+  [400.6743469238 400.711730957 400.7839355469]]
+
+ [[400.6825256348 400.7158203125 400.7716674805]
+  [400.6776123047 400.7096862793 400.7710571289]]]

tests/test_grid3d/snapshots/test_grid_property/test_simpleb8_case/E300_composite/SOIL_E300_COMP

@@ -0,0 +1,11 @@
+[[[0.0313438885 -- 0.0]
+  [0.0283134598 0.0015908304 --]]
+
+ [[0.0241011288 0.0028758403 0.0]
+  [0.0272606183 0.0022333621 0.0]]
+
+ [[0.013992371 0.0014623175 0.0]
+  [0.0262076166 0.0028758403 0.0]]
+
+ [[0.0177176725 0.0015908304 0.0]
+  [0.0228369273 0.0035182647 0.0]]]

tests/test_grid3d/test_grid_property.py

@@ -696,3 +696,50 @@ def test_gridprop_export_bgrdecl_double(tmp_path, grid):
 
     with open(tmp_path / "actnum.DATA", "rb") as fh:
         assert b"DOUB" in fh.read()
+
+
+@pytest.mark.parametrize(
+    "simcase, props",
+    [
+        (
+            pytest.param(
+                "E100_BO",
+                ["SOIL", "PRESSURE"],
+                id="E100 blackoil",
+            )
+        ),
+        (
+            pytest.param(
+                "E300_BO",
+                ["SOIL", "PRESSURE"],
+                id="E300 blackoil",
+            )
+        ),
+        (
+            pytest.param(
+                "E300_COMP",
+                ["SOIL", "PRESSURE"],
+                id="E300 composite",
+            )
+        ),
+    ],
+)
+def test_simpleb8_case(simcase, props, snapshot):
+    """Test a very small case that is actually ran through E100, E300, IX."""
+
+    folder = TPATH / "3dgrids" / "simpleb8"
+
+    grd = xtgeo.grid_from_file(folder / str(simcase + ".EGRID"), fformat="egrid")
+
+    assert grd.dimensions == (4, 2, 3)
+
+    for prop in props:
+        gprop = xtgeo.gridproperty_from_file(
+            folder / str(simcase + ".UNRST"),
+            name=prop,
+            fformat="unrst",
+            date="20220101",
+            grid=grd,
+        )
+
+        snapshot.assert_match(str(gprop.values.round(10)), f"{prop}_{simcase}")

tests/test_grid3d/test_gridprop_import_eclrun.py

@@ -193,6 +193,12 @@ def test_read_values():
             Phases.OIL_WATER_GAS,
             0.25,
         ),
+        (
+            iter([MockEntry("SWAT", 0.5), MockEntry("SGAS", 0.25)]),
+            "SOIL",
+            Phases.E300_GENERIC,
+            0.25,
+        ),
     ],
 )
 def test_read_values_phases(generator, keyword, phases, expected):