12.25.13 DownholeString

Topic Version1Published11/11/2016
For StandardWITSML v2.0
Type:ClassStereotype:«XSDcomplexType»

A section of the downhole component equipment. Strings in the completion including casing, tubing, and rod strings .A completion may have multiple sets of strings, which may be nested each inside another, or run in parallel as in dual string completions; all strings are contained in a parent wellbore. Each string is composed of equipment, and may also contain accessories and/or assemblies.

Table 12.25.13-1 Attributes

Name

Type

Notes

AxisOffset

LengthMeasure

The distance from a sibling string.

ExtensionNameValue

ExtensionNameValue

Extensions to the schema based on a name-value construct.

Name

String64

The name of the downhole string.

ParentStringsName

String64

The name of parent string.

StringInstallDate

TimeStamp

The install date of the downhole string.

StringMdInterval

MdInterval

Measured depth interval between the top and the base of the downhole string.

StringType

DownholeStringType

The type of string defined in the enumeration DownholeStringType.

SubStringType

SubStringType

The type of substring which can be SurfaceCasing, IntermediaCasing or ProductionCasing.

uid

String64

Unique identifier for this instance of DownholeString.

Table 12.25.13-2 Associations

Association

Notes

From: DownholeString.StringEquipmentSet

0..1To: StringEquipmentSet

Association

the list of equipment in the string. each equipment is liner connected and carry the rest of weight

From: DownholeString.ReferenceWellbore

1..1To: Wellbore

Association

 

From: DownholeString.

To: SubStringType

Dependency

 

From: DownholeString.ExtensionAny

0..1To: CustomData

Association

Extensions to the schema using an xsd:any construct.

From: DownholeString.ParentString

0..1To: DownholeString

Association

 

From: DownholeString.

To: DownholeStringType

Dependency

 

From: DownholeString.Accessories

0..1To: StringAccessory

Association

the accessories equipment of the string. It locates in the downhole string, but it is not equipment which liner connected in string (from top to down), and it is not carraying the weight of string

From: DownholeComponent.WellHead

0..1To: DownholeString

Association

This section contains wellhead information, and is composed of string equipment

From: DownholeStringSet.DownholeString

1..*To: DownholeString

Association

Information about a single downhole string.

From: DownholeString.ParentString

0..1To: DownholeString

Association