.... Laricina plans to use SAGD technology in combination with solvents to recover bitumen from the Grosmont. Through the 1970s and 1980s, several thermal pilots were conducted on the bitumen deposits of the Grosmont formation, including Unocal's Buffalo Creek (2) . integrity circulation drilling...

... leakage through wellbores. Several research groups have focused on investigating CO 2 leakage through wellbores, and one of the main areas of interest has been the stability and integrity of the cement used in wellbores. The goal of these studies has been to quantify the change in physical and chemical...

... integrity of the cement-sheath behind the casing should be planned with drilling, completion, production/injection, and abandonment stages considered. A properly designed and engineered cement slurry system can help save a wellbore/field from additional unplanned expenses. The process is shown below...

... collected over the long operating history of a well's life cycle, the challenge in the E&P industry remains how can you trust the data? Experience shows that the real roadblock to integrating specialized upstream data is the quality and integrity of the data itself, not the systems used to access...

... in the above, casing integrity may be compromised by human factors. For example, casing failure may have its origin right from the very beginning of a petroleum exploitation program. Inability to drill and maintain a gauged and stable borehole, a poor selection of casing hardware, a poor cement placement...

... Abstract A key to the success of long-term storage of CO 2 in depleted oil or gas reservoirs is the hydraulic integrity of both the geological formations that bound it, and the wellbores that penetrate it. The integrity of this " bounding seal" system is affected by various mechanical...

... Abstract Many successfully cemented wells begin to show annulus pressure buildup, which is often caused by damage to the cement sheath integrity from post-cementing operations. This problem may be temporarily dealt with by releasing the annulus pressure. However, this method of annular gas...

.... The foamed cement can maintain bond and overall integrity in such tests at up to 10,000 psi internal casing pressure. In cycling tests, foam cement was found to withstand 100 cycles, up to 90% of shear failure index, without noticeable damage. Results of some recent laboratory tests are presented...