Abstract: A method for determining the presence of a leak in a pressure system. The method includes receiving pressure data of the pressure system after shut-in of the pressure system, determining a pressure slope based on the pressure data, entering a passing state in response to the slope being less than a predetermined slope threshold, exiting the passing state in response to the slope being greater than the predetermined slope threshold, and generating a passing indication as a result of remaining in the passing state for at least a predetermined time period.

Abstract: A method for determining the presence of a leak in a pressure system. The method including receiving pressure data of the pressure system after shut-in of the pressure system, determining a pressure slope and a pressure curvature based on the pressure data, and generating a failing indication as a result of the pressure slope being above a predetermined threshold and the pressure curvature indicating that the slope is constant or increasing in absolute value.

Abstract: A method includes receiving a result of a benchmark leak detection test for a pressure system and determining whether the result indicates that a leak is present in the pressure system. In response to the result of the benchmark leak detection test indicating that a leak is not present in the pressure system, the method includes performing a subsequent leak detection test for the pressure system, comparing a result of the subsequent leak detection test to the result of the benchmark leak detection test, and determining, based on the comparison, whether the subsequent leak detection test indicates that a leak is not present in the pressure system. A time to determine whether a leak is not present based on the comparison is less than a time to determine whether a leak is not present based on the benchmark leak detection test.

Abstract: A method includes receiving a result of a benchmark leak detection test for a pressure system and determining whether the result indicates that a leak is present in the pressure system. In response to the result of the benchmark leak detection test indicating that a leak is not present in the pressure system, the method includes performing a subsequent leak detection test for the pressure system, comparing a result of the subsequent leak detection test to the result of the benchmark leak detection test, and determining, based on the comparison, whether the subsequent leak detection test indicates that a leak is not present in the pressure system. A time to determine whether a leak is not present based on the comparison is less than a time to determine whether a leak is not present based on the benchmark leak detection test.

Abstract: A method includes receiving a result of a benchmark leak detection test for a pressure system and determining whether the result indicates that a leak is present in the pressure system. In response to the result of the benchmark leak detection test indicating that a leak is not present in the pressure system, the method includes performing a subsequent leak detection test for the pressure system, comparing a result of the subsequent leak detection test to the result of the benchmark leak detection test, and determining, based on the comparison, whether the subsequent leak detection test indicates that a leak is not present in the pressure system. A time to determine whether a leak is not present based on the comparison is less than a time to determine whether a leak is not present based on the benchmark leak detection test.

Abstract: A system includes a memory and a processor coupled to the memory. The processor receives a description of a pressure system, including a plurality of components to be tested, where each component has a required test pressure. The processor generates a first test sequence that tests the required test pressure of each of the plurality of components, where the first test sequence includes a first number of steps. The processor also iteratively generates a second test sequence that tests the required test pressure of each of the plurality of components, where the second test sequence comprises a second number of steps. The processor stores a representation of at least one of the first test sequence and the second test sequence in the memory, and the second number of steps is less than the first number of steps.

Abstract: A method for determining integrity of a wellbore. The method includes underbalancing a volume of fluid in the wellbore, receiving pressure data of the wellbore after shut-in of the wellbore, determining a pressure curvature based on the pressure data, and generating a failing indication as a result of the pressure curvature indicating that the slope is constant or increasing in absolute value. The failing indication indicates fluid communication across a wellbore boundary.

Abstract: A method for determining the presence of a leak in a pressure system. The method includes receiving pressure data of the pressure system after shut-in of the pressure system, determining a pressure slope based on the pressure data, entering a passing state in response to the slope being less than a predetermined slope threshold, exiting the passing state in response to the slope being greater than the predetermined slope threshold, and generating a passing indication as a result of remaining in the passing state for at least a predetermined time period.

Abstract: A method for determining the presence of a leak in a pressure system. The method including receiving pressure data of the pressure system after shut-in of the pressure system, determining a pressure slope and a pressure curvature based on the pressure data, and generating a failing indication as a result of the pressure slope being above a predetermined threshold and the pressure curvature indicating that the slope is constant or increasing in absolute value.

Abstract: A leak detection system includes a pressure system that requires leak and/or pressure testing. A pressure sensor coupled to the pressure system senses a first pressure at time t0, after which fluid pumping system provides a selected volume of test fluid to the pressure system. The pressure sensor senses a test pressure at time t1 and at selected intervals ‘n’ to time t(n+1) and transmits a signal reflective of the pressures at each time to a computer system for recording and storage on a computer readable medium. A software application operating on the computer system is configured to calculate a leak detection value, which is a function of a ratio of the first pressure at time t0 and the test pressure at time t1; the test pressure at time t1 and the test pressure at time t2; and so on to a test pressure at the timen and the test pressure at the time t(n+1). A graphical output displays the leak detection value as a function of time.

Abstract: A method for determining integrity of a wellbore. The method includes underbalancing a volume of fluid in the wellbore, receiving pressure data of the wellbore after shut-in of the wellbore, determining a pressure curvature based on the pressure data, and generating a failing indication as a result of the pressure curvature indicating that the slope is constant or increasing in absolute value. The failing indication indicates fluid communication across a wellbore boundary.

Abstract: A method includes receiving a result of a benchmark leak detection test for a pressure system and determining whether the result indicates that a leak is present in the pressure system. In response to the result of the benchmark leak detection test indicating that a leak is not present in the pressure system, the method includes performing a subsequent leak detection test for the pressure system, comparing a result of the subsequent leak detection test to the result of the benchmark leak detection test, and determining, based on the comparison, whether the subsequent leak detection test indicates that a leak is not present in the pressure system. A time to determine whether a leak is not present based on the comparison is less than a time to determine whether a leak is not present based on the benchmark leak detection test.

Abstract: A leak detection system includes a pressure system that requires leak and/or pressure testing. A pressure sensor coupled to the pressure system senses a first pressure at time0, after which fluid pumping system provides a selected volume of test fluid to the pressure system. The pressure sensor senses a test pressure at time1 and at selected intervals ‘n’ to time(n+1) and transmits a signal reflect of the pressures at each time to a general purpose computer for recording and storage on a computer readable medium. An operating program is configured to calculate a leak detection value, which is a function of a ratio of the first pressure at time0 and the test pressure at time1; the test pressure at time1 and the test pressure at time2; and so on to a test pressure at the time and the test pressure at the time(n?1). A graphical output is configured to display the leak detection value as a function of time.

Abstract: A leak detection system includes a pressure system that requires leak and/or pressure testing. A pressure sensor coupled to the pressure system senses a first pressure at time0, after which fluid pumping system provides a selected volume of test fluid to the pressure system. The pressure sensor senses a test pressure at time1 and at selected intervals ‘n’ to time(n+1) and transmits a signal reflect of the pressures at each time to a general purpose computer for recording and storage on a computer readable medium. An operating program is configured to calculate a leak detection value, which is a function of a ratio of the first pressure at time0 and the test pressure at time1; the test pressure at time1 and the test pressure at time2; and so on to a test pressure at the timen and the test pressure at the time(n+1). A graphical output is configured to display the leak detection value as a function of time.

Abstract: A leak detection system includes a coupled to a pressure system to sense a first pressure at time t0. A fluid pumping system then provides a selected volume of test fluid to the pressure system. The sensor senses a test pressure at time t1 and at selected intervals ‘n’ to time t(n+1) and transmits a signal reflect of the pressures at each time to a computer. The computer system is configured to calculate a leak detection value, which is a function of a ratio of the first pressure at time t0 and the test pressure at time t1; the test pressure at time t1 and the test pressure at time t2; and so on, to a test pressure at the timen and the test pressure at the time t(n+1). A graphical output is displays the leak detection value as a function of time.

Abstract: A leak detection system includes a pressure system that requires leak and/or pressure testing. A pressure sensor coupled to the pressure system senses a first pressure at time0, after which fluid pumping system provides a selected volume of test fluid to the pressure system. The pressure sensor senses a test pressure at time1 and at selected intervals ‘n’ to time(n+1) and transmits a signal reflect of the pressures at each time to a general purpose computer for recording and storage on a computer readable medium. An operating program is configured to calculate a leak detection value, which is a function of a ratio of the first pressure at time0 and the test pressure at time1; the test pressure at time1 and the test pressure at time2; and so on to a test pressure at the timen and the test pressure at the time(n+1). A graphical output is configured to display the leak detection value as a function of time.

Abstract: A method and apparatus is disclosed for testing a blowout preventer (BOP) by: using a drillpipe to install a test plug into one end of the throughbore of a (BOP); using a valve in the BOP to isolate the opposite end of the throughbore of the BOP, using piping to connect the output of a cementing unit to the throughbore of the BOP; using the cementing unit to increase the pressure in the throughbore of the BOP to a predetermined level; displaying the pressure in the piping as a function of time; and displaying the pressure in the piping as a function of time for the same blowout preventer system at an earlier time when leakage was deemed to be within predetermined acceptable limits. The pressure decline caused by a leak can be detected reliably and efficiently with high-resolution pressure data.