Process for drilling a well service fluid and drilling, which can be continuously circulated in a hole drilling process, and to prevent the loss of movement in a bore of the well.TOMMY F. BROOKEY
摘要: The rheological characteristics of aqueous well drilling fluids are improved by incorporating into the fluids small amounts of sulfonated styrene-maleimide copolymers and at least one water-soluble polymer prepared from acrylic acid or acrylate or their derivatives....
which sealing layer prevents the ingress of water through the well from above into the selected earth horizon, provision is made according to the invention for a single or multiple shut-off and collecting device to be inserted with the drilling tool into the borehole, the segment parts of whic...
Tool for drilling a drill hole and inserting a clamping sleeve (24) into the drill hole in one step comprises a shaft with an axial stop for the clamping sleeve. The tool has a drill head (12) radially protruding over the shaft (10), and a coupling connecting the drill head in a fix...
A reservoir encountered by a drilling fluid-containing borehole can be sampled and/or a liquid can be removed from within a borehole by arranging conduits and a packer for isolating the reservoir or a selected fluid- removal location and then gas-lifting liquid by injecting an aqueous liquid ...
PROCESS AND APPARATUS FOR FORMING DATA SENSING WITH USE OF REMOTE SENSORS DURING WELL DRILLING. Process and apparatus for data acquisition representing formation parameters while drilling a well cavity is described. A well is drilled with a drill wire with a drill collar located above a drill plane...
Well cementing apparatus My invention relates to well cementing apparatus and process which is particularly designed for use in conjunction with oil wells. A material problem in drilling for oil is the prevention of transfer of liquid from one zone to another th... Brown, Lawrence L. - US 被...
Novel Drilling Technology Improves Verticality in Top Hole Sections While Reducing Drilling Time and Costs The challenges involved in maintaining straight and truly vertical bores in the vertical section of the well continue to plague the drilling industry. Thes... Steve Barton,David Herrington,Jonathan...
Designing the World's Deepest Offshore Well to Drill and Core the Earth's Mantle Because many fundamental questions concerning the dynamics of the Earth and itsstructure remain unanswered, the Integrated Ocean Drilling Program (IODP) hasrecently completed a feasibility study for drilling and coring ...
Though this reduces offset well data that are valuable to engineers for selecting oil and gas well drilling sites, for injection purposes, a lack of well- bores through the storage formation minimizes the potential for leaks through the... A Alvi,EH Berlin,J Kirksey,... - 《Oilfield Review...