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Dual tubing hanger

A hanger and device-based technology, which can be used in wellbore/well components, sealing/isolation, earth-moving drilling, etc., and can solve problems such as voids

Active Publication Date: 2011-08-31
SPM石油和天然气PC有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can create clearance issues between the cover plate and the various connections 140, 142 needed to route fluid through the openings

Method used

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  • Dual tubing hanger
  • Dual tubing hanger
  • Dual tubing hanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 2 is a cutaway perspective view of one embodiment of a twin tube hanger generally indicated by reference numeral 200 in accordance with the present invention. image 3 is a cutaway side view of the twin pipe hanger 200 . Figure 4 is a cutaway side view of twin tubing hanger 200 installed in wellhead 300 . Although embodiments of the invention are discussed below with reference to a twin tubing hanger 200 installed within a wellhead 300, it will be appreciated that other applications of the twin tubing hanger are possible.

[0020] continuous reference Figure 2 to Figure 4 , the twin tube hanger 200 includes a hanger body 202 surrounding a first mandrel 220 and a second mandrel 240 . Each mandrel 220, 240 includes a mandrel body 222, 242 surrounding a central bore 224, 244, respectively. Each mandrel 220 , 240 also includes a fluid opening 226 , 246 , respectively, which provides an inlet / outlet for fluid passing through the central bore 224 , 244 . Each fl...

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PUM

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Abstract

Embodiments of the present invention provide a dual tubing hanger mounted in a wellhead having a cylindrical bore with an inner diameter. The dual tubing hanger may include: a cylindrical hanger body having an outer diameter less than the inner diameter of the cylindrical bore; a first mandrel located within the hanger body, the first mandrel capable of transporting a first fluid and having a first outlet at a first elevation extending through the cylindrical hanger body; a second mandrel located within the hanger body, the second mandrel capable of transporting a second fluid and having a second outlet extending through the cylindrical hanger body at substantially the first elevation; and sealing means between the hanger body and the cylindrical bore; wherein the sealing means is capable of isolating the first fluid from the second fluid.

Description

technical field [0001] Embodiments of the present invention provide a dual tubing hanger for a wellhead. Background technique [0002] In various types of wells, the produced fluids flow through the tubing, which is a series of pipes located within the casing. Pipe hangers may be used to support the pipe at the wellhead. In some applications, a dual tube hanger is used that allows two different fluids to flow. In some cases, the two fluids may be fluids drawn from different locations in the subsurface. In other applications, one fluid may be withdrawn while another fluid is pumped into a subterranean cavity to maintain cavity volume. [0003] One example of a prior art twin-pipe hanger system is shown in FIG. 1 , generally indicated by reference numeral 100 . FIG. 1 shows a cutaway side view of a twin pipe hanger system 100 . The twin tubing hanger system 100 includes a twin tubing hanger 110 positioned within the wellhead 102 . The twin tubing hanger 110 includes a cy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/047
CPCE21B33/047
Inventor 陈容顺刘光鸿施德杰艾德波特·布迪·普尔万图艾科·库斯万万图罗罗伯特·菲利普·希尔
Owner SPM石油和天然气PC有限责任公司