Well Event Table

A well event is a record of an activity in the wellbore, observed while drilling. Well events are divided in ten categories - Drilling conditions, Fluids, Geological, Geomechanics, Hole Conditions, Other, Service delivery, Time specific, Well Construction and Well Placement. JewelSuite has thirty six predefined, custom well event types . These predefined well event types are assigned to one of the three categories. Some well event definitions are shared across two categories. For example, a well event ‘Tight Hole’ is classified in category Geomechanics and also under Drilling conditions. The Well Event Table (Views > Well Event Table or the Create option of the context menu in the View Explorer) lists the well events . Once created, they are stored in the JewelExplorer under the respective wellbore, where you can access them to display in a 2D View, 3D View, or Cross Section View.

Open a Well Event Table from the View Explorer.    click to enlarge

In the table, use the Create Well Event button to open the Create well event form. To edit an existing well event, select the well event entry in the table and click on the Edit Well Event button to open the Edit well event form. To delete a well event entry, select the well event and click on the Delete Well Event button . You can delete multiple well events by holding the Ctrl key and selecting the well events.

Well event table with the list of well events in the solution.    click to enlarge

Each row provides an informative overview for the well event in nine columns.

Wellbore  Name of the wellbore with assigned well event.

Well Type  Type of well event.

Categories  Category of the well event (Drilling, JewelSuite Geomechanics, Geomechanics)

Measured Depth Top  Measured Depth at the top of the interval of the well event. The well events recorded at a single depth point along the wellbore are stored in this column. Use the context menu of the column header to change the units and format of the depth entries.

Measured Depth Base  Measured Depth at the base of the interval of the well event. This column will be empty for the well events recorded at a single depth point.

MW or Mud Weight  Observed mud weight. Right-mouse click on the units allows you to change the units of the mud weight.

EMW  or Equivalent Mud Weight describes the observed equivalent mud weight.

Date/Time  Date and time when a well event is recorded.

Description  Description of the well event in detail.

Color  By default, all the well events are categorized in four colors - blue, orange, green and red. Depending on the severity of well event type, one of three colors is assigned to the well event. You can change the color for the well event on the Create and edit well event form.

Symbol  Each well event type is represented by a default symbol. All the symbols are tabulated in the .

You can filter the well events listed in the table using the filter icon next to the column headers. Check the box next to the options in the filters list to show the associated events. You can sort the well events on the column headers using the context menu, or by clicking on the column header. Use the Show Search Panel in the context menu (or use Ctrl + F) to search for specific terms in the Well Event Table, and all the relevant entries are filtered.

Context menu of the column headers in the Well Event Table.    click to enlarge

Lists of well event categories
Well event subcategory Location
Point Interval
Abnormal pressure ✔ O
Abnormal torque ✔ O
Axial vibration ✔ O
Bit/BHA wear O ✔
Jarring ✔ O
Lateral vibration ✔ O
Low/ reduced/ no ROP ✔ O
Motor stalling ✔ O
Overpull O ✔
StickSlip ✔ O
Stuck pipe ✔ O
Tangential vibration ✔ O
Temperature ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
Fluid displacement ✔ O
LCM ✔ O
Loss of pump ✔ O
Partial losses O ✔
Pump liner change ✔ O
Sand content ✔ O
Total losses ✔ O
Weighting down ✔ O
Weighting up ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
Abrasive Sandstone ✔ O
Carbonate formation ✔ O
Chert hazard ✔ O
Formation hazard ✔ O
Hard formation ✔ O
High UCS ✔ O
Interbedded hazard ✔ O
Loose sand ✔ O
Reactive shale ✔ O
Salt formation ✔ O
Stringer ✔ O
Unconsolidated formation ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
Ballooning/breathing ✔ O
Break outs O ✔
Connection gas ✔ O
FIT ✔ O
Influx/Kick ✔ O
LOT ✔ O
Mini fracture ✔ O
XLOT ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
Overgauge hole O ✔
Pack off ✔ O
Reaming in hole NA ✔
Reaming out of hole NA ✔
Spiral hole ✔ O
Tight hole O ✔
Washout ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
Well event ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
FE data quality O ✔
MLWD survey issues ✔ O
FE data quality O ✔
Casing running difficulties O ✔
Fishing ✔ O
FOOS ✔ O
Good Run ✔ O
MLWD communication issues ✔ O
MLWD failure ✔ O
MLWD firmware issues ✔ O
MLWD measurement issues ✔ O
MLWD memory data issues ✔ O
MLWD survey issues ✔ O
Motor failure ✔ O
Non PSDI event ✔ O
NPT event ✔ O
Ongoing w/failure ✔ O
Other TF/SF ✔ O
POOH due to failure ✔ O
PSDI event ✔ O
RSS failure ✔ O
RSS Rib failure ✔ O
Rubber over shakers ✔ O
Surface, remote connectivity ✔ O
Surface, software ✔ O
Tool face control issues ✔ O
Unable to meet well trajectory ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
Bit/BHA trip ✔ O
Casing running ✔ O
Liner running ✔ O
Logging ✔ O
Rig maintenance ✔ O
Time drilling ✔ O
Wait on cement ✔ O
Wait on weather ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
Abnormal casing wear O ✔
Casing point ✔ O
Casing window ✔ O
Fish (LIH) ✔ O
Junk/debris ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.

Well event subcategory Location
Point Interval
Building angle ✔ O
Dogleg severity ✔ O
Dropping inclination ✔ O
Kick off point ✔ O
JewelSuite Geomechanics decision ✔ O
JewelSuite Geomechanics observation ✔ O
Turning ✔ O
Walking ✔ O
✔ - Default selection
NA - Not applicable. Must provide the location depth in interval only.
O - Option to change the location type from the default selection.