Halliburton has filed a patent for an apparatus that includes a formation tester tool with a pressure sensor and a radially extendable pad. The tool also features inner and outer packers positioned above and below the pad, allowing for efficient testing of formations in a borehole. GlobalData’s report on Halliburton gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Halliburton, Oil well fracking was a key innovation area identified from patents. Halliburton's grant share as of September 2023 was 52%. Grant share is based on the ratio of number of grants to total number of patents.
An apparatus for formation testing in a borehole
A recently filed patent (Publication Number: US20230313674A1) describes an apparatus and method for formation testing in a borehole. The apparatus includes a formation tester tool with a pressure sensor and a radially extendable pad. The tool also features inner and outer packers that can be extended radially to form a sealed volume between the tool and the formation. A sealed connection volume is created between the formation and the pressure sensor within the pad. The device is designed to acquire pressure measurements from the fluids in the sealed connection volume and extract fluid from the sealed volume to reduce pressure around the pad. Based on the pressure measurements, a formation property prediction can be generated.
The method involves positioning the formation tester tool in the borehole and expanding the packers and pad to create the sealed volume and sealed connection volume. Pressure measurements are acquired from the fluids in the sealed connection volume, and fluid is extracted from the sealed volume to reduce pressure around the pad. A formation property prediction is generated based on the pressure measurement trend. The method may also involve increasing the pressure in the borehole and performing additional operations such as buildup and drawdown operations to further reduce pressure around the pad and acquire additional pressure measurements.
The patent also mentions the use of a non-transitory, computer-readable medium with executable instructions to perform the operations described above. The medium can store instructions for expanding the packers and pad, acquiring pressure measurements, extracting fluid, and generating formation property predictions.
Overall, this patent describes an apparatus and method for formation testing that allows for accurate pressure measurements and the prediction of formation properties. The use of packers and a radially extendable pad helps create a sealed volume and connection volume, ensuring reliable measurements. The method can be executed using a computer-readable medium with executable instructions.