... Abstract An operator of a Class II injection well (i.e., used in conjunction with oil and gas production) is required to perform a mechanical integrity test (MIT) at least once every five years. We studied the rates of and reasons for failure of over 10,000 scheduled MITs, for a variety of completion...

.... Traditionally, these mechanical integrity tests involve moving in a workover rig, tripping production tubing out of the well, setting a mechanical bridge plug above the highest set of perforations, and then pressure testing the casing. This operation is very time- and labor-intensive, with significant safety...

... Characterization pressure transient analysis Reservoir Surveillance pressure transient testing cavern Leak tightness test production control Upstream Oil & Gas actual leak pressure evolution transient creep brine warming Brine interpretation creep apparent leak mechanical integrity test MPa...

...ARMA 20 1148 Rock mechanical property controls hydrocarbon cap sealing: An integrated structural, mechanical test and microscopic study in the Northern slope of the Tazhong uplift in the Tarim basin, NW China NingFei* 1, 2,3 Yun Jinbiao 2,3 Li Jianjiao 3 Song Haiming 2 1. Laboratory of Structural...

... Composites also performed their own finite element analyses, and good correlations were obtained. Conclusions This paper has provided examples of how testing has made significant contributions in establishing performance expectations in different offshore mechanical systems, and how the integrity of high...

... Corporation . Abstract A wide variety of tools and methods are currently available to monitor casing integrity on a case-by-case basis. The use of mechanical integrity test (MIT) methods, to observe pressure communication between casing strings and formation, is often mandated by regulatory agencies...

... that will not endanger a USDW and that this test will therefore meet the regulatory requirements under 40 CFR 146.8 (a) and (b). A case history will be presented to demonstrate the viability of this as an alternative mechanical integrity test. This concept has been approved as an alternate mechanical integrity test...

...Figure 6 Pressure vs. time for the COGCC mechanical integrity test performed post- ...

... developments in the methodology of Mechanical Integrity Test using the Cement Bond Log and the neutron activation techniques. Also included is a short discussion of potential applications of recently developed techniques to design the annular cement seal integrity. Introduction During the past decade...

... conditions during stimulation. Thus, designs were not subjected to such intensive mechanical integrity testing. However, in carbonate reservoirs it is often imperative to stimulate wells to bypass damage induced during the drilling and completion phases [ Bachar, November 2014 ]. As stimulation techniques...

.... We will also show examples of plugs that exhibit the expected digital signature but did not pass a mechanical integrity test to confirm adequate isolation. Additional tools in the powered mechanical toolbox include an on-command release tool (ESRT) and a downhole anchor tool (EDAT). All devices can...

... include thermal perturbations created by differences in temperature between the reservoir and injected CO2; internal pressure within the wellbore due to injection or mechanical integrity testing; and tectonic stresses in the geologic system. Wellbore Design caprock Reservoir Characterization...