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Search Petrowiki: Blowout preventer
...Glossary:Annular blowout preventer An elastomer bag or donut type seal, pushed into contact with the pipe or tools in the blow out ...preventer (BOP). It is designed to seal around pipe or any other irregular surface tool (packers, guns, pumps...tc.) that may be in the BOP, including itself if the wellbore is empty. May also be called a Hydril preventer...
An elastomer bag or donut type seal, pushed into contact with the pipe or tools in the blow out preventer (BOP). It is designed to seal around pipe or any other irregular surface tool (packers, guns, pumps, etc.) that may be in the BOP, including itself if the wellbore is empty. May also be called a Hydril preventer.
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...Glossary:Blowout preventer A conditional surface pressure barrier often consisting of a set of hydraulically operated rams c..., shear off pipe or seal an open hole during drilling or a workover. It may also contain an annular preventer...
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...Glossary:Inside blowout preventer A valve installed inside the drill stem to prevent flow up the inside of the pipe...
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..., shear off pipe or seal an open hole during drilling or a workover. It may also contain an annular preventer...
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...An elastomer bag or donut type seal, pushed into contact with the pipe or tools in the blow out preventer (BOP). It is designed to seal around pipe or any other irregular surface tool (packers, guns, pumps...tc.) that may be in the BOP, including itself if the wellbore is empty. May also be called a Hydril preventer...
An elastomer bag or donut type seal, pushed into contact with the pipe or tools in the blow out preventer (BOP). It is designed to seal around pipe or any other irregular surface tool (packers, guns, pumps, etc.) that may be in the BOP, including itself if the wellbore is empty. May also be called a Hydril preventer.
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...cean Enterprise Class drillships(Fig. 1), for example, have the capability to run two riser and two blowout preventer (BOP) systems with one system drilling and the other completing a well on a subsea template. With t...://dx.doi.org/10.2118/105792-MS 2. G. Song, Z. Hu et al. 2006. An Innovative Ultradeepwater Subsea Blowout Preventer (SSBOP) Control System Using Shape Memory Alloy Actuators, IADC/SPE Drilling Conference, 21-23 Febr...
As offshore activities have moved into progressively deeper waters, new types of drilling units have been needed to deal with the conditions found in these locations. Ultradeepwater drilling units are are the technological forerunners and pioneers in the offshore drilling business. Table 1 gives some characteristics of these units, most of them drillships of extraordinary size, but some are semis as listed inTable 2. All were built in the late 1990s and early 2000s. Most have some degree of dual-rig activity (i.e., they have two drilling units on one hull). The Transocean Enterprise Class drillships(Figure 1), for example, have the capability to run two riser and two blowout preventer (BOP) systems with one system drilling and the other completing a well on a subsea template.
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...trogen generator and compressors. Well-control equipment Jointed-pipe systems The conventional blowout preventer (BOP) stack used for drilling is not compromised during UBD operations. The conventional BOP stack ...psi with 100 rpm. * Fig. 8--Rotating control head. Rotating BOPs (active systems) The rotating blowout preventer (RBOP) is probably the most significant piece of equipment developed, with the biggest impact being...
Selecting surface equipment is the final step in designing an underbalanced drilling (UBD) operation. The surface equipment for UBD can be broken down into four categories: * Drilling system * Gas-generation equipment * Well-control equipment * Surface separation equipment. Hole size and reservoir penetration, as well as directional trajectory, determine whethercoiled tubing or jointed pipe is the optimal drillstring medium (Table 1). If the hole size required is larger than 6⅛ in., jointed pipe may need to be used. The size of coiled tubing currently used for drilling operations is between 2 and 2⅞ in. Occasionally, the ideal coiled tubing for an operation may be excluded because of such factors as crane or transport limitations or that the life of the coil may not be economical.
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...ivity index * Glossary:Injector head * Glossary:Inline * Glossary:Insert pump * Glossary:Inside blowout preventer * Glossary:Instantaneous amplitude * Glossary:Instantaneous frequency * Glossary:Instantaneous p...
- Reservoir Description and Dynamics > Improved and Enhanced Recovery (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Drillstem/well testing (0.79)
- Well Drilling > Drilling Fluids and Materials > Drilling fluid selection and formulation (chemistry, properties) (0.55)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Well performance, inflow performance (0.55)
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...amount of mooring wirerope because the winches were all located on the turret "plug," * The subsea blowout preventer (BOP) usually had to be stored on the drill floor * Fig. 1--Typical spread-moored drillship of th...
In the early days, ships were very attractive and the most common floating mobile offshore drilling units (MODUs). Ships mobilized quickly and could carry a large amount of operator consumables, such as casing and bulk mud. However, their motions in weather proved to be a significant disadvantage in even mild environments. If a ship-shaped unit was hit on its beam with even moderate swells, the roll could raise havoc with efficient productivity.(Figure The Offshore Co. (now Transocean) developed and patented the turret mooring system(Figure 1).
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