Also known as: cased · cases
Written by attorneys · grounded in primary & secondary sources — see below
Pipe installed in a wellbore hole and cemented into place to prevent pollution and protect the hole. Intermediate casing protects deep formations against pollution from drilling and producing operations. Production casing is the final pipe through which oil and gas is produced. Surface casing is the first pipe set in the hole to protect groundwater.
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Charles Cunningham drilled an exploratory well on his ranch. His crew set surface casing as the first pipe in the hole and cemented it to shield the groundwater. Without that step the state regulator would have shut down operations.
Christian Coleman reached a deep formation and installed intermediate casing to isolate it from shallower zones. The extra string prevented pollution during later drilling stages. Regulators approved the well only after confirming the intermediate casing met depth requirements.
Caleb Chang completed the well and ran production casing as the final string. Oil and gas now flow through that pipe to the surface. The operator cemented the production casing to maintain long-term integrity.
Clifford Cox discovered a leak in the intermediate casing after a pressure test. The defect allowed fluid migration into an adjacent aquifer. The operator had to pull the string and rerun new casing before resuming production.
Colin Chambers hired a service company to cement the surface casing. Proper bonding around the pipe prevented any communication with shallow groundwater. The well passed inspection only after the cement job met state standards.
Cameron Cruz submitted a casing program that called for production casing across the pay zone. Engineers verified the pipe grade and cement design before approval. The well began producing only after the casing string was successfully landed and cemented.
Surface casing is the first pipe set in the hole and protects groundwater. Production casing is the final string through which oil and gas is produced.
Supporting sources
Intermediate casing protects deep formations against pollution from drilling and producing operations.
Supporting sources
Cementing prevents pollution and protects the wellbore hole from collapse or fluid migration.
Supporting sources
…not warranted by the Constitution. Congress have not power to give original jurisdiction to the Supreme Court in other cases than those described in the Constitution. An act of Congress repugnant to the Constitution cannot become a law. The courts of the United States are bound to take notice of the Constitution.…