{
  "$schema": "https://welldot.org/schema/v2/well.schema.json",
  "version": "2.4",
  "x-welldot-example": {
    "illustrative": true,
    "based_on": "https://siagasweb.sgb.gov.br/layout/detalhe.php?ponto=1500000136"
  },
  "well_type": "tubular",
  "well_purpose": [
    "production"
  ],
  "name": "Poço 4ST-05 — Santarém/PA",
  "well_driller": "Sondagens Tapajós S.A.",
  "construction_date": "1977-11-04",
  "obs": "Poço jorrante no Aquífero Alter do Chão: carga 3,98 m acima do terreno e vazão livre de 8 m³/h. Teste de 52 h a 126,5 m³/h interpretado por Jacob (T = 0,003 m²/s). Abandonado em 1996.",
  "well_id": [
    {
      "authority": "Operadora",
      "id": "4ST-05",
      "primary": true
    }
  ],
  "location": {
    "lat": -2.43861,
    "lng": -54.73722,
    "elevation": 22,
    "properties": {
      "timezone": "America/Belem",
      "crs": "EPSG:4326",
      "lat_precision": 0.0003,
      "lng_precision": 0.0003,
      "elevation_datum": "x-imbituba",
      "elevation_precision": 5,
      "original_crs": "EPSG:31981"
    }
  },
  "well_depth": 160,
  "bore_hole": [
    {
      "from": 0,
      "to": 16,
      "diameter": 559,
      "drilling_method": "rotary"
    },
    {
      "from": 16,
      "to": 66,
      "diameter": 445,
      "drilling_method": "rotary"
    },
    {
      "from": 66,
      "to": 160,
      "diameter": 381,
      "drilling_method": "rotary"
    }
  ],
  "well_case": [
    {
      "from": -0.42,
      "to": 87.5,
      "type": "galvanized_steel",
      "diameter": 324
    },
    {
      "from": 115.01,
      "to": 133.66,
      "type": "galvanized_steel",
      "diameter": 244
    },
    {
      "from": 136.66,
      "to": 154.07,
      "type": "galvanized_steel",
      "diameter": 244
    },
    {
      "from": 157.07,
      "to": 158.07,
      "type": "galvanized_steel",
      "diameter": 244
    }
  ],
  "reduction": [
    {
      "from": 87.5,
      "to": 88.01,
      "diam_from": 324,
      "diam_to": 244,
      "type": "galvanized_steel"
    }
  ],
  "well_screen": [
    {
      "from": 88.01,
      "to": 115.01,
      "type": "stainless_steel",
      "diameter": 244,
      "screen_slot": 0.5,
      "slot_type": "continuous_slot"
    },
    {
      "from": 133.66,
      "to": 136.66,
      "type": "stainless_steel",
      "diameter": 244,
      "screen_slot": 0.5,
      "slot_type": "continuous_slot"
    },
    {
      "from": 154.07,
      "to": 157.07,
      "type": "stainless_steel",
      "diameter": 244,
      "screen_slot": 0.5,
      "slot_type": "continuous_slot"
    }
  ],
  "surface_case": [],
  "hole_fill": [
    {
      "from": 0,
      "to": 16,
      "type": "seal",
      "diameter": 559,
      "description": "Cimentação"
    },
    {
      "from": 16,
      "to": 66,
      "type": "gravel_pack",
      "diameter": 445,
      "description": "Areia quartzosa 1,00–3,00 mm"
    },
    {
      "from": 66,
      "to": 160,
      "type": "gravel_pack",
      "diameter": 381,
      "description": "Areia quartzosa 1,00–3,00 mm"
    }
  ],
  "lithology": [
    {
      "from": 0,
      "to": 2,
      "description": "Areia argilosa orgânica",
      "color": "#6b5a44",
      "texture": {
        "code": 612,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Aluviões",
      "aquifer_unit": "Não aquífero"
    },
    {
      "from": 2,
      "to": 10,
      "description": "Argila arenosa clara",
      "color": "#d6cbb6",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Aluviões",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 10,
      "to": 27,
      "description": "Areia média a conglomerática esbranquiçada",
      "color": "#ece6d6",
      "texture": {
        "code": 601,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Aluviões",
      "aquifer_unit": "Aquífero aluvial"
    },
    {
      "from": 27,
      "to": 30,
      "description": "Argila arenosa amarelada",
      "color": "#d9c27a",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 30,
      "to": 45,
      "description": "Argila arenosa com níveis de areia média",
      "color": "#cdb98a",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 45,
      "to": 56,
      "description": "Areia média a grossa esbranquiçada",
      "color": "#ece6d6",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Sistema Aquífero Alter do Chão"
    },
    {
      "from": 56,
      "to": 76,
      "description": "Argila arenosa com níveis milimétricos de areia fina",
      "color": "#cdb98a",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 76,
      "to": 86,
      "description": "Argila compacta com níveis arenosos",
      "color": "#b3a58c",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 86,
      "to": 118,
      "description": "Areia fina a média com níveis de argila arenosa",
      "color": "#e3d9c0",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Sistema Aquífero Alter do Chão"
    },
    {
      "from": 118,
      "to": 132,
      "description": "Argila compacta intercalada com areia quartzosa esbranquiçada",
      "color": "#b3a58c",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 132,
      "to": 138,
      "description": "Areia grossa branca",
      "color": "#f2eee4",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Sistema Aquífero Alter do Chão"
    },
    {
      "from": 138,
      "to": 144,
      "description": "Argila arenosa amarelada",
      "color": "#d9c27a",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 144,
      "to": 149,
      "description": "Areia média clara",
      "color": "#e3d9c0",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Sistema Aquífero Alter do Chão"
    },
    {
      "from": 149,
      "to": 153,
      "description": "Argila compacta com nível de argila arenosa",
      "color": "#b3a58c",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 153,
      "to": 160,
      "description": "Areia clara mal selecionada, média a grossa",
      "color": "#e3d9c0",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Alter do Chão",
      "aquifer_unit": "Sistema Aquífero Alter do Chão"
    }
  ],
  "fractures": [],
  "caves": [],
  "hydrodynamic_events": [
    {
      "id": "evt-01",
      "type": "spot_measurement",
      "datetime": "1978-02-20T08:00:00-03:00",
      "static_level": -3.98,
      "measurement_method": "x-pressure_gauge",
      "notes": "Poço jorrante: vazão livre de 8 m³/h com a válvula aberta."
    },
    {
      "id": "evt-02",
      "type": "constant_rate",
      "datetime": "1978-02-21T07:00:00-03:00",
      "equipment": "Bomba de turbina vertical; medidor de nível por linha de ar",
      "static_level": -3.98,
      "measurement_method": "air_line",
      "steps": [
        {
          "rate": 126.5,
          "duration": 3120,
          "readings": [
            {
              "elapsed": 1,
              "depth": 37.41
            },
            {
              "elapsed": 2,
              "depth": 38.06
            },
            {
              "elapsed": 3,
              "depth": 38.43
            },
            {
              "elapsed": 5,
              "depth": 38.91
            },
            {
              "elapsed": 7,
              "depth": 39.22
            },
            {
              "elapsed": 10,
              "depth": 39.55
            },
            {
              "elapsed": 15,
              "depth": 39.93
            },
            {
              "elapsed": 20,
              "depth": 40.2
            },
            {
              "elapsed": 30,
              "depth": 40.58
            },
            {
              "elapsed": 45,
              "depth": 40.95
            },
            {
              "elapsed": 60,
              "depth": 41.22
            },
            {
              "elapsed": 90,
              "depth": 41.6
            },
            {
              "elapsed": 120,
              "depth": 41.87
            },
            {
              "elapsed": 180,
              "depth": 42.24
            },
            {
              "elapsed": 240,
              "depth": 42.51
            },
            {
              "elapsed": 360,
              "depth": 42.89
            },
            {
              "elapsed": 480,
              "depth": 43.16
            },
            {
              "elapsed": 600,
              "depth": 43.37
            },
            {
              "elapsed": 720,
              "depth": 43.53
            },
            {
              "elapsed": 900,
              "depth": 43.74
            },
            {
              "elapsed": 1080,
              "depth": 43.91
            },
            {
              "elapsed": 1260,
              "depth": 44.06
            },
            {
              "elapsed": 1440,
              "depth": 44.18
            },
            {
              "elapsed": 1800,
              "depth": 44.39
            },
            {
              "elapsed": 2160,
              "depth": 44.56
            },
            {
              "elapsed": 2520,
              "depth": 44.7
            },
            {
              "elapsed": 2880,
              "depth": 44.83
            },
            {
              "elapsed": 3120,
              "depth": 44.9
            }
          ]
        }
      ],
      "recovery": {
        "readings": [
          {
            "elapsed": 1,
            "depth": 3.51
          },
          {
            "elapsed": 2,
            "depth": 2.86
          },
          {
            "elapsed": 3,
            "depth": 2.49
          },
          {
            "elapsed": 5,
            "depth": 2.01
          },
          {
            "elapsed": 10,
            "depth": 1.37
          },
          {
            "elapsed": 15,
            "depth": 0.99
          },
          {
            "elapsed": 30,
            "depth": 0.35
          },
          {
            "elapsed": 60,
            "depth": -0.28
          },
          {
            "elapsed": 120,
            "depth": -0.91
          },
          {
            "elapsed": 240,
            "depth": -1.52
          },
          {
            "elapsed": 360,
            "depth": -1.87
          },
          {
            "elapsed": 480,
            "depth": -2.1
          },
          {
            "elapsed": 720,
            "depth": -2.42
          }
        ]
      }
    }
  ],
  "aquifer_analysis": [
    {
      "id": "an-1978",
      "datetime": "1978-03-10T10:00:00-03:00",
      "analyst": "Sondagens Tapajós — Hidrogeologia",
      "source_event_ids": [
        "evt-02"
      ],
      "method": "cooper_jacob",
      "static_level": -3.98,
      "static_level_source_id": "evt-01",
      "dynamic_level": 44.9,
      "flow_rate": 126.5,
      "specific_capacity": 2.588,
      "transmissivity": 259.2,
      "notes": "Grande perda de carga no poço: a maior parte do rebaixamento ocorre no primeiro minuto."
    }
  ],
  "history_logs": [
    {
      "id": "log-01",
      "datetime": "1978-06-01T08:00:00-03:00",
      "category": "status_change",
      "status": "active",
      "description": "Poço em operação no abastecimento da cidade."
    },
    {
      "id": "log-02",
      "datetime": "1996-02-19T08:00:00-03:00",
      "category": "status_change",
      "status": "abandoned",
      "description": "Poço desativado após a entrada em operação da captação superficial no Tapajós."
    }
  ]
}