primary drilling

primary drilling

[′prī‚mer·ē ′dril·iŋ]
(engineering)
The process of drilling holes in a solid rock ledge in preparation for a blast by means of which the rock is thrown down.
References in periodicals archive ?
CRC's internally funded investments will be largely directed to short payout projects, such as primary drilling of both vertical and lateral wells and capital workovers, and low-risk projects including waterflood and steamflood investments that maintain base production.
And we have unusually high minor earthquake activity in some of the primary drilling areas that may be related though evidence so far is inconclusive.
The Company has made a decision to expand the business plan of Kenai Offshore so as to allow for the possibility that the proposed jack-up rig could also be used as a primary drilling rig for anticipated drilling operations by multi-national companies in the Chukchi Sea, and/or Beaufort Sea located offshore the North Slope, Alaska (see attached map) or as a relief rig (which could become a requirement under new OCS regulations).
The new seismic program has enlarged the potential for the primary drilling prospect in the Ordovican, and also identified several new leads for the Acacus play.
The primary drilling target on the acquired acreage is the Hartshorne coal at approximately 3,500 to 4,000 feet.
CRC's internally funded investments will be largely directed to short payout projects, such as primary drilling and capital workovers, and low-risk projects including waterflood and steamflood investments that maintain base production.
Bidder's lists have been submitted to ETAP for approval for the first batch of primary Drilling Services.
"It's not a problem of it not being a good shale; it's just not thick enough," Ratchford said about portions of the Chattanooga Shale that lie beneath the primary drilling zone for the Fayetteville Shale in north-central Arkansas.