Wellhead production pumping tree with access port
AssigneeStream-Flo Industries Ltd.
InventorsDaniel J. Riddell, Kwong-Onn Chan
Life of this patent
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Abstract
In an integral production pumping tree, the bottom connection, blow-out preventer, flow tee and top connection are positioned to one side, with the vertical rod bore off-center. Up to three vertical ports are provided in the other side of the tree, for providing access to the production casing bore for an electric heating string, an instrumentation string and a small diameter injection tubing string. The ports accommodate sealed connection assemblies, from which the strings extend. The upper portion of the other side of the tree is cut away to create space for introducing the connecting assemblies. The tubing hanger is provided with matching bores.
Claims14
A production pumping tree for use in a wellhead, comprising:
- a housing formed from a single piece of steel and having first and second sections;
- the first housing section forming an off-center vertical production tubing bore connected with openings for receiving a flow control component and a horizontal flow tee opening;
- and
- the second housing section forming at least one bore providing an access port for enabling access through the housing for a supplemental string.
A production pumping tree characterized by a housing including first and second side sections forming a vertical production tubing bore and horizontal openings for receiving a well head flow control component and flow tee connections, all located off-center in the first side section of the housing, and including at least one off-center vertical access bore formed in the second side section of the housing.
A production pumping tree for use in a wellhead, comprising:
- a housing formed from a single piece of steel and having first and second sections;
- the first housing section forming an off-center production tubing bore connected with openings for receiving a well head flow control component and a horizontal flow tee opening;
- and the second housing section forming at least one access bore for enabling access through the housing.
An improved production pumping tree comprising an integrally formed pumping tree housing providing a bottom connection, connections for a blow-out preventer, a flow tee and a top connection on one side of the housing, with an off-center vertical rod bore and access ports being formed in the other side of the housing for providing access into a production casing bore for one or more supplemental strings.
Dependencies are inferred from the claim text.