Drillstring
Drillstring news and technical articles from Oil & Gas Journal. Search Drillstring latest and archived news and articles
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NORTH SEA HPHT WELLS REQUIRE CHANGES IN DRILLING PROCEDURES
… Bailer Consultant Tananger, Norway Such equipment as casing, drillstrings , mud, logging, and rigs that were adequate to drill most ..... with magnetic markers for relief-well path determination. DRILLSTRING Presently, HP wells are being drilled with 5-in. drill …
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Three drillships ordered for deep water
… derricks to enable deployment of two complete drillstrings at once. They will be able to operate ..... s newbuild will be equipped with one drillstring , while Navion's will have two drillstrings , one of which will be used only as an …
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Penetration rates optimized by aligning torque and rotary speed
… optimizing penetration rates and reducing drillstring failures by balancing rotary speed and ..... optimize penetration rates while reducing drillstring failures. An in-house software program ..... can generate harmful stresses to the drillstring . In these cases, destructive action …
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Mechanical oscillator frees stuck pipe strings using resonance technology
… Fig. 3). Resonant vibration technologies provide an alternative method for freeing stuck coiled-tubing, liners, and drillstrings . Situations where the axial reciprocation of pipe; the use of large tensile, compressive, or percussive forces; or where …
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Wire line retrieval coring technology shows promise
… mounted at the bottom of the drillstring . The wire line system demands ..... requirements for adaptation with the drillstring and other devices. It is ..... to work with conventional drillstrings used in slim-hole drilling ..... system uses special rig, drillstring ," IADC Drilling Contractor …
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TECHNOLOGY Logging while tripping cuts time to run gamma ray
A new logging tool, sent down the drillstring before a pipe trip out of the hole ..... requirements, holds the tools in the drillstring without interfering with the logging ..... tool is run inside or pumped down the drillstring , the log is made as the pipe is pulled …
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SPECIAL REPORT: Tests validate new drill pipe buckling model
… between the wellbore and drillstring . Full-scale tests ..... scale tests to evaluate drillstring buckling models that currently ..... objective was to put different drillstrings in compression (to make ..... then measure the deformed drillstring with a continuous gyroscope …
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TECHNOLOGY Amoco opens drilling test facility to industry
… Although a variety of drillstrings can be handled, the facility has two drillstring sizes. One is a light ..... aluminum 41/2-in. drillstring that because of its lower ..... a 21/8-in. steel drillstring for smaller holes. The …
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DROPPED BHA MAY INDUCE FORMATION BREAKDOWN FROM PRESSURE SURGE
… dynamic gradient when a parted drillstring falls to the bottom of a well ..... formation breakdown. When a drillstring parts above a critical depth ..... which a falling fish (parted drillstring ) induces a downhole pressure …
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BP says Macondo wellbore detected by first relief well
… first relief well being drilled to stop the Macondo well oil spill in the Gulf of Mexico reached 16,275 ft on June 23, and drillstring was removed for a ranging run using wireline to locate the runaway well. During the ranging run, BP detected the Macondo …
