Apparatus for performing subsea through-the-flowline operations

Patent · Tue Oct 14 00:00:00 EDT 1986

OSTI ID:5058369

Huffaker, R W; Stanton, P N

This patent describes a subsea apparatus remotely operated from a surface support station for introducing and removing TFL tools through a receiving end of a subsea wellhead assembly comprising: a subsea frame assembly remotely installable substantially adjacent the subsea wellhead assembly; a first hollow elongate member connected to the subsea frame assembly and adapted to contain at least one TFL tool. The elongate member has a first sealed end and a second end, the second end adapted to engage the receiving end of the wellhead assembly; a second hollow elongate member connected to the subsea frame assembly and adapted to contain at least one TFL tool, the second elongate member having a first sealed end and a second end; means for aligning the second end of the elongate members with the receiving end of the wellhead assembly, the aligning means being connected to the subsea frame assembly; means for sealably engaging the second end of the elongate members to the receiving end of the wellhead assembly; a diverter attached at one end to the second end of the first and second elongate members and attached at the other end to the means for sealable engagement; and means for circulating fluid within the elongate member and the wellhead assembly to transport the TFL tool between the elongate members and the wellhead assembly.

• Assignee: Exxon Production Research Co., Houston, TX
• Patent Number(s): US 4616706
• OSTI ID: 5058369
• Resource Relation: Patent File Date: Filed date 21 Feb 1985
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
42 ENGINEERING
NATURAL GAS WELLS
WELLHEADS
OFFSHORE DRILLING
REMOTE HANDLING EQUIPMENT
OIL WELLS
ALIGNMENT
ELONGATION
INSTALLATION
REMOTE CONTROL
SEALS
CONTROL
DRILLING
EQUIPMENT
MATERIALS HANDLING EQUIPMENT
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)
423000 - Engineering- Marine Engineering- (1980-)