3585 results about "Petrology" patented technology

This invention relates to improved methods for completing wells in unconsolidated subterranean zones. More specifically, the present invention relates to cement compositions useful in subterranean applications, and more particularly, to permeable cement compositions and methods for forming consolidated permeable cement masses in well bores to prevent sand influx into the well bores with produced fluids. In one embodiment, the permeable cement compositions of the present invention comprise a hydraulic cement, water, and a degradable material capable of undergoing an irreversible degradation downhole.

The present invention provides methods of stimulating fluid production from an unconsolidated formation penetrated by a wellbore while preventing the migration of formation sand with fluids produced from the formation. The methods basically comprise the steps of injecting a liquid composition into a portion of the formation surrounding the wellbore which converts into a gel-like substance and plugs the permeability of the injected portion of the formation, but allows the injected portion to remain flexible and resist breakdown due to pressure cycling therein, creating at least one fracture in the formation extending from the wellbore through the plugged portion of the formation into an unplugged portion thereof and depositing hardenable resin composition coated proppant in the fracture and causing the resin composition to harden and consolidate the proppant into a hard permeable mass.

The invention relates to a method for continuously quantitative evaluation of pore structures of reservoir strata by utilizing nuclear magnetic resonance well logging data, so as to divide types of the reservoir strata. The method comprises the following steps of: classifying T2 spectrums according to parameters reflecting differences of reservoir strata, and carrying out a nonlinear calibration method on different T2 spectrums to obtain a continuously distributed capillary pressure curve of the reservoir strata; obtaining continuous reservoir stratum pore throat radius distribution and pore structure parameters by utilizing the nuclear magnetic capillary pressure curve; and evaluating the pore structure of each reservoir stratum on the basis of the nuclear magnetic capillary pressure curve, the features of the reservoir stratum pore throat radius distribution and the pore structure parameters, and dividing types of the reservoir strata. Through the adoption of the method, the nuclear magnetic capillary pressure curve on each depth point can be continuously obtained by utilizing the nuclear magnetic resonance well logging data, the pore structure of each reservoir stratum can be quantitatively evaluated according to the reservoir stratum pore throat radius distribution and the pore structure parameters of the reservoir stratum, and the types of the reservoir strata are classified, therefore, the exploitation and development efficiency of complicated oil-gas reservoir is improved.

The invention discloses a method for calculating oil saturation of a reservoir. The method comprises the following steps of: establishing a reservoir oil saturation model including a free fluid porosity phi f, a bound fluid porosity phi b, as well as corresponding macropore bond index mf, micropore bond index mb and micropore bond index characteristic value parameters; measuring a core porosity phi of a selected core sample; carrying out a nuclear magnetic resonance T2 spectrum experiment and an electric petrophysical experiment on the selected core sample to determine the core porosity phi and bound water saturation Swir of the selected core sample, the free fluid porosity phi f and bound fluid porosity phi b, stratum water resistivity Rw of a saturated rock sample, saturated water rock resistivity Ro of each rock sample, and resistivity Rt of each rock under different conditions of water saturation Sw; determining parameters of a reservoir oil saturation model by adopting an optimization data fitting method; establishing a relationship between the core micropore bond index mb and the bound water saturation Swir; classifying reservoir cores according to the bound water saturation; and determining a saturation index n of each type of cores by using the optimization fitting algorithm.

A method and system for controlling drilling mud density in drilling operations. The mud required at the wellhead is combined with a base fluid of a different density to produce diluted mud in the riser. By combining the appropriate quantities of drilling mud with base fluid, riser mud density at or near the density of seawater may be achieved, thereby permitting greater control over the pressure in the wellbore and various risers. Blowout preventers may also be used in combination with the process to control these pressures. Concentric risers are disclosed, wherein an annulus defined within one riser is utilized to carry the different density base fluid to the injection point for injection into the drilling mud, while an annulus defined within another riser is utilized to carry the combination fluid and cuttings back to the drilling rig. Cuttings are separated in the usual manner at the surface. The diluted mud is passed through a centrifuge system to separate drilling mud from the different density base fluid. The centrifuge system may also be utilized to separate the recovered drilling fluid into a substantially barite portion and a substantially drilling fluid portion, wherein the two portions are stored locally at the rig and recirculated during drilling operations.

The invention relates to a determining method for surveying the reserves of hypotonic clastic rock oil-gas reservoir positioned on a clastic rock oil (gas) geological reservoir enrichment boundary, comprising the following steps of: carrying out statistical regression on the daily produced oil-gas data and water data of the traditional testing oil well and the traditional testing gas well and thecorresponding physical data, oil-bearing data and electrical data of an oil layer to determine the physical lower limit value, the oil-bearing lower limit value and the electrical lower limit value of an oil-gas layer, which correspond to industrial oil-gas flows; determining the minimum values of output and a sand body thickness according to the relationship between an effective thickness and test oil output and between the sand body thickness and test production; determining the area boundary of the oil-gas reservoir by using a sandrock thickness isoline method and an effective thickness isoline method; and calculating the reserves of the hypotonic clastic rock oil-gas reservoir. The invention solves the problem that the oil-bearing area of the traditional hypotonic clastic rock oil (gas) reservoir is extrapolated depending on artificial well points, is convenient to apply in the calculation of the reserves, can not only be used for more accurately calculating the reserves of oil (gas) reservoir, but also furthest save the exploration discovery workload and reduce the discovery cost of ton reserves, thereby enhancing the economic benefits of oil-gas exploration and development.

The present invention relates to a method and system for integrating logging tool data and digital rock physics to estimate rock formation properties. A rock sample from a logging tool such as a sidewall plug or large enough cutting can be extracted by the logging tool at approximately the same well bore location that the logging tool measures fluid properties. The rock samples thus obtained is scanned using a CT scanner, scanning electron microscope or other suitable scanning device. The resulting scanned rock image can be segmented and rock properties comprising porosity, absolute permeability, relative permeability, capillary pressure and other relevant rock properties are calculated. The resulting digital calculations are integrated with logging tool data and rock property estimates to improve the accuracy and timeliness of the logging tool data.

A method and system for controlling drilling mud density in drilling operations. The mud required at the wellhead is combined with a base fluid of a different density to produce diluted mud in the riser. By combining the appropriate quantities of drilling mud with base fluid, riser mud density at or near the density of seawater may be achieved, thereby permitting greater control over the pressure in the wellbore and various risers. Blowout preventers may also be used in combination with the process to control these pressures. Concentric risers are disclosed, wherein an annulus defined within one riser is utilized to carry the different density base fluid to the injection point for injection into the drilling mud, while an annulus defined within another riser is utilized to carry the combination fluid and cuttings back to the drilling rig. Cuttings are separated in the usual manner at the surface. The diluted mud is passed through a centrifuge system to separate drilling mud from the different density base fluid. The centrifuge system may also be utilized to separate the recovered drilling fluid into a substantially barite portion and a substantially drilling fluid portion, wherein the two portions are stored locally at the rig and recirculated during drilling operations.

A hard rock hobbing cutter rock breaking characteristic testing device used in the field of tunnel engineering is provided. A rock silo supporting seat is positioned on a guide rail pair and realizes longitudinal motion by a longitudinal-moving hydraulic cylinder; a rock silo is positioned on the rock silo supporting seat and realizes lateral movement by lateral moving hydraulic cylindersfixed on the rock silo supporting seat; rock samples are positioned inside the rock silo. Two columns are vertically arranged at both sides of the rock silo, top ends of the columns are connected by a beam and thus a gantry structure is formed. A vertical hydraulic cylinder is fixed on the beam, and the lower part of the vertical hydraulic cylinder is connected with a walking beam. Under the walking beam, a hobbing cutter is installed to simulate the process of hobbing cutter rock breaking, or a similar hobbing cutter wearing module is installed to simulate the process of similar hobbing cutter wearing. An industrial computer, a data acquisition card, a three-axis force sensor, an acoustic emission device and a high-speed digital camera system are used to monitor the processes of hobbing cutter rock breaking and wearing. The device is capable of simulating the process of rolling-type rock breaking of the hobbing cutter, the process of rolling and impact-combined type rock breaking of the hobbing cutter and the process of similar hobbing cutter wearing.

The invention provides an analysis method of the corrosion action and the corrosion effect of a carbonate rock. The method comprises the following steps: detecting petrologic parameters, geological fluid characteristics and geological background parameters of a reservoir stratum of the carbonate rock; selecting a plunger sample, and preparing the plunger sample into a diagenetic fluid; performing weighing, physical property analysis, CT scan analysis and microscopic property analysis on the sample before experiment; performing a corrosion simulated experiment on the carbonate rock, and collecting the reaction generated liquid; performing the physical property analysis, the CT scan analysis and the microscopic property analysis on the sample after experiment; analyzing the content of Ca<2+> and Mg<2+> of the generated liquid; analyzing the corrosion action of the carbonate rock under different controlling factors, determining a three-dimensional structure and a microcosmic pattern of representation of a corrosion hole of the carbonate rock, and quantitatively assessing the corrosion hole of the carbonate rock and the communicated property evolution. By the method, the corrosion action and the corrosion benefits of the carbonate rock from an earth surface to the deep burying environment can be analyzed, and more accurate analytical data is provided for assessing and forecasting the favorable reservoir stratum of the carbonate rock.

The invention relates to a method and a system for measuring rock optical parameters based on Terahertz time-domain spectroscopy. The method comprises the steps of: detecting a rock substrate and a rock sample, and obtaining the Terahertz time-domain waveform of the rock substrate and the Terahertz time-domain waveform of the rock sample; processing the Terahertz time-domain waveform of the rock substrate and the Terahertz time-domain waveform of the rock sample, and obtaining the absorption spectrum and the refractive index spectrum data. The method and the system for measuring rock optical parameters based on the Terahertz time-domain spectroscopy provided by the invention have the advantages that the fast and nondestructive detection can be carried out on the rock, the operation of the detection method is easy, the data processing is simple, and the repeatability is good.

The invention provides an analog measurement method and a device of oil saturation in strata, which belong to a geophysical exploration testing method and an analog device. The analog measurement method of the oil saturation in the strata comprises the steps of simulating an actual stratum (manufacturing an artificial cemented rock core model), arranging an analog well, arranging an oil-water saturation monitoring system in the artificial cemented rock core model, constructing an electric field at the periphery of the wall of the well, obtaining the oil saturation illustrative charts of different pervious courses by measuring the change of the resistivity of the rock core model and the like. The method not only can well simulate and measure the underground geological condition but also can further learn the position of the residual oil of a reservoir and the change rule of the saturation, thereby learning and determining the oil accumulation reserves and the grade in the simulated stratum.

The present invention provides a method and a device for exploiting the submarine natural gas hydrate. The present invention transfers the natural gas hydrate on the submarine surface to a dredge and then to a large-volume container after being ground; a water pump is used to add sea water appropriately into the large-volume container. As the temperature of the sea water keeps about 20 DEG C, the temperature of the sea water makes the mixture of ground hydrate and sandstone fully decomposed in the large-volume container so as to separate the natural gas, water and sandstone. The separated natural gas is drained and then directly connected with a user terminal. The present invention with convenient operation and simple device can conveniently, economically and effectively achieve the exploitation of the submarine natural gas hydrate.

The invention provides a simulation experiment method of coal seam hydraulic fracture, comprising the following steps of: (a) analyzing natural fracture shape characteristics of a coal rock in a stratum to be simulated, selecting a coal rock material for making a simulation specimen, processing the coal rock material into a hexahedral block according to the natural fracture shape characteristics,and selecting a coating layer carrying out external casting on the block to form the simulation specimen; (b) selecting fluorescent powder as a tracer, and then preparing fracturing fluid; and (c) performing a simulation fracturing experiment with the simulation specimen and the fracturing fluid and acquiring image information of a hydraulic fracture shape and a fracturing fluid swept region after the experiment. In terms of brittle and fragile coal rock with difficulty in processing, after the coating layer is cast by the method disclosed by the invention, the specimen has whole smooth and regular appearance, and the stratification and cutting positions of the coal rock can be well controlled. When the experiment result is acquired, the range of the hydraulic fracture can be clearly displayed by the fluorescent powder, and in particular the micro-fracture that cannot be viewed by the naked eyes can be displayed.

The invention relates to the technical field of oil fracturing, in particular to a method for calculating the staged fracturing productivity of a compact reservoir horizontal well. The method is characterized by including the steps of firstly, dividing a reservoir infiltration area into four parts; secondly, obtaining the equivalent hole diameter of each fracture; thirdly, obtaining the yield of each fracture during multiple fracture disturbance; fourthly, coupling the yield of each fracture with the hydraulic pressure drop flow model in a horizontal wellbore to obtain a group of bottom hole pressure, iteratively solving until the bottom hole pressure difference of the previous step and the next step is smaller than tolerance, namely convergence, and taking the determined group of yield as the fracture-control yield of each fracture and the sum of the fracture-control yield of the fractures as the total yield of the horizontal well. The method is real and reliable in calculation result and good in application effect.

The invention provides a method and a device for recovering an oil and gas reservoir rock mechanics underground in-situ model. The method comprises the following steps of: measuring rock mechanics parameters of an oil and gas reservoir; counting rock mechanics property influence parameters of the oil and gas reservoir; calculating the anisotropy strength of the rock mechanics parameters; obtaining a correlation between the rock mechanics parameters and the rock mechanics property influence parameters of the oil and gas reservoir; obtaining a correlation between the rock mechanics property influence parameters and the anisotropy strength; and recovering the oil and gas reservoir rock mechanics underground in-situ model by adopting the rock mechanics parameters, the anisotropy strength of the rock mechanics parameters, the correlation between the rock mechanics parameters and the rock mechanics property influence parameters of the oil and gas reservoir and the correlation of the rock mechanics property influence parameters and the anisotropy strength. By the method, the effectiveness and the accuracy for recovering the oil and gas reservoir rock mechanics underground in-situ model can be improved.

The invention discloses a submarine shallow layer natural gas hydrate pilot hole pull-back jet break-up exploitation method and exploitation device, and belongs to the technical field of submarine hydrate exploitation. The exploitation method mainly comprises the following steps that a water insulation pipe is lowered to the position adjacent to a hydrate deposit, turn drilling is conducted in thehydrate deposit by means of mechanical or jet-flow drilling, and a pilot hole with a certain inclined angle is formed; after drilling reaches a preset position, a continuous pipe and an exploitationcrushing system are pulled back, meanwhile the surrounding hydrate ore body is crushed by means of a spray head jet flow, hydrate particles formed are collected into a closed pipeline with seawater, silt in the crushed particles is separated out by means of an in-pipe downhole separator, curing agent is added, then the particles are backfilled to a gob in situ, and the hydrate particles after separation are pumped to the sea surface for treatment together with the seawater. By means of the exploitation method and the exploitation device, efficient, safe and sustainable exploitation of the submarine shallow layer natural gas hydrate is achieved, the exploitation efficiency is ensured, and meanwhile a potential safety problem is effectively avoided.

The invention relates to an ultra-deep well drilling simulation experiment device which mainly comprises a drilling system, an autoclave system, a rock sample heating and pressurizing system, a detecting system, a data acquiring system (22) and a computer data processing system (21). The drilling system comprises a frame, a power head system, a drilling fluid system and a hydraulic system; the autoclave system mainly comprises a dynamic sealing device (9), a pressure vessel (18), a drilling rod column (19), a bit (23), a hoop (25) and an experiment bench (29); the detecting system mainly comprises a parameter detecting system and a temperature and pressure detecting system; a programmable logic controller (PLC) is connected with the computer data processing system (21); a rock sample is put on the experiment bench (29); a resistance wire is used for heating the rock sample; a rock sample clamping and pressurizing mechanism (24) is used for pressurizing the rock sample; and the drilling system is used for drilling the rock sample. The ultra-deep well drilling simulation experiment device is used under the high-temperature and high-pressure condition.

A method for controlling high mine pressure of an open-air roadway by hydraulic fracturing comprises the following steps of determining a hard rock stratum of a roof according to a geological information bar chart of a coal face; designing a control drilling hole; respectively controlling abutment supporting pressure and lateral supporting pressure; slotting or slitting in the bottom of the hole after hole drilling construction is finished so as to achieve the purpose of directional fracturing; applying a hydraulic fracturing process; and weakening the hard roof or cutting off the hard roof along a directional fracturing slot of the drilling hole so as to transfer stress or weaken surrounding rock and reduce the lateral supporting pressure and the abutment supporting pressure of the open-air roadway. A weakening zone in the surrounding rock can effectively absorb or weaken impact stress waves; a dynamic disaster of rock burst caused by the reason that the hard roof cracks suddenly is avoided; and large deformation of the open-air roadway is controlled. The method for controlling the high mine pressure of the open-air roadway by hydraulic fracturing is not only applicable to controlling the high mine pressure of the open-air roadway with the coal face with the hard roof, but also is applicable to controlling the high mine pressure of the roadway of which a work face is in tunnelling crossing with a work face of an adjacent roadway during mining. Moreover, the method is simple, effective, safe and reliable, and is low in cost.

The invention provides a complicated rock core preparation method based on CT scanning and 3D printing. Based on a combined technology of CT scanning and 3D printing, the reappearance of an underground rock pore structure characteristic is realized, and the visualization of oil-gas-water distribution inside a rock core can be achieved. Through a 3D printing technology, the visualization and actualization of the digital rock core and a network model can be achieved, and the underground core pore structure can reappear in a real object form. More importantly, with the continuous input and development of unconventional oil-gas fields such as carbonate rocks, shale oil and gas and compact oil and gas, the complicated rock core preparation method has the advantage that by using the combined technology of CT scanning and 3D printing, a new thought and method is provided for representation and preparation of special rock cores.

The invention discloses a rock porosity real-time tester under chemical seepage and creep coupling, belonging to the rock engineering technical field, which is composed of a rock sample clamp, a chemical seepage pressure loading device, an axle pressure loading device, a surrounding pressure loading device and a porosity tester. The rock porosity real-time tester can real-timely test the porosity of a rock sample under constant pressure loading and chemical seepage coupling of three directions, having simple structure, flexible assembly, strong expandability, high stability and wide application. The rock porosity real-time tester has high application value for rock soil mass mechanical property and seepage character research under multi-field coupling condition of rock-soil engineering, hydraulic engineering, petroleum engineering, mining engineering and underground engineering and the like.

The invention relates to the field of geothermal exploitation and provides a method for self-circulation exploitation of geothermal energy of hot dry rock with multilateral well and volume fracturing technologies. According to the method, firstly, multilateral well holes are drilled in different depths of a reservoir of the hot dry rock, the reservoir between upper and lower multilateral well holes is fractured with the volume fracturing technology, a high-permeability hot dry rock reservoir is constructed, and finally, thermal-carrying media are injected and exploited for geothermal exploitation. Annularly-injected low-temperature thermal-carrying media flow to the fractured reservoir of the hot dry rock along the multilateral well holes in the upper part of the reservoir, flow to the multilateral well holes in the lower part under the double actions of injection pressure and potential-energy difference and finally flow back to the ground along an oil pipe. According to the method, the multilateral well and fracturing technologies are sufficiently utilized, the reservoirs of the hot dry rock are effectively communicated, the problem about crack communication during conventional double-well fracturing for injection and exploitation is solved, the potential-energy difference in different depths can be further effectively utilized, and the flowing capability of the thermal-carrying media is greatly improved. With the use of the thermal insulation oil pipe, the thermal loss in the exploitation process of the thermal-carrying media is further reduced, and the exploitation efficiency of geothermal energy is improved.

The invention discloses a rock gangway drifting method. Firstly, directional blasting technology is adopted, and presplitting cracks are arranged close to the periphery of a rock gangway through blasting. Secondly, loosening blasting technology is adopted to break rocks in the presplitting cracks; directional blasting and loosening blasting can be performed separately and also can be performed synchronously and initiated in sequence; the directional blasting is initiated before the loosening blasting. Finally, a rock gangway drifting machine is adopted to drill broken rocks. By adoption of combination of drifting of the drifting machine and controlled blastings, the invention has the advantages of great reduction of damage on surrounding rocks, increase of safety, improvement of drifting speed and reduction of cost, and is a rock gangway drifting method having the advantages of high efficiency, safety, low cost, good operating environment and low labor intensity. The invention is suitable for drifting various rock gangways and particularly suitable for drifting rock drifts with high hardness.

The invention discloses a drilling-sealing method and a sealing device of a coal mine underground ultrahigh pressure fracturing hole. The drilling-sealing method comprises the following steps: drilling a plugging hole on coal rock body; going on drilling a fracturing hole forward in the plugging hole; transmitting the sealing device into the plugging hole, enabling a water outlet hole of a fracturing pipe to stretch into the fracturing hole and enabling a taper sleeve sleeved on the fracturing pipe and made of soft material to plug on a hole opening of the fracturing hole; sealing by using polyurethane and solidifying for 30 minutes for 1 m length section at the hole opening of the plugging hole; and grouting cement slurry greater than 425 into the plugging hole with pressure by a grouting pipe, and solidifying for 48 hours after finishing grouting. The device comprises a grouting pipe and a slurry returning pipe and a fracturing pipe. The grouting pipe and the slurry returning pipe are arranged in the plugging hole. The grouting pipe, the slurry returning pipe and the fracturing pipe are connected integrally. A soft taper sleeve is arranged on the fracturing pipe. The soft taper sleeve is plugged at the hole opening of the fracturing hole. The invention has the advantages that the sealing method has high sealing success rate, good effect and wide application range; and the sealing device has simple structure and convenient operation.

The invention discloses an identification method of the deposition and diagenetic integrated phase of clastic rocks. The method comprises the steps of 1) defining the deposition and diagenetic integrated phase based on a rock core; and 2) identifying the deposition and diagenetic integrated phase by utilizing a logging curve. The invention brings forward the concept of the deposition and diagenetic integrated phase for the first time, and influence of original decomposition and post-stage diagenesis on reservoir physical properties and logging response are taken into consideration; the classification standard of the diagenetic phase in the deposition and diagenetic integrated phase is re-defined, the principle of classifying the diagenetic phase according to the absolute values of compacting, cementing and corroding effects to the reservoir physical properties is provided for the first time, and thus, classification of the diagenetic phase is more accurate; and the logging identification method, in which crossplot identification is carried out on the basis of Bayesian discrimination, of the deposition and diagenetic integrated phase is provided for the first time, and the correct rate of logging identification is obviously improved.

The invention discloses a multifunctional drill bit rock breaking experiment device capable of testing the triaxial strength parameter of rock. The device comprises a main body device, a pressure head structure, a confining pressure system, an acoustic emission system, a temperature control system and a pore material injection system. The device has the benefits as follows: the real temperature, crustal stress and pore pressure of a stratum can be simulated in a closed environment, a triaxial mechanical test and a drill bit rock breaking test can be completed simultaneously, a stress-strain curve of a rock sample, dynamic vibration of a drill bit and a drill column, bit pressure and influences of footage on the rock sample can be determined, an experiment basis is provided for research of mechanical properties of complex oil and gas reservoirs and drill bit rock breakage under multiple conditions, a rock breaking experiment can be conducted while conventional mechanical properties of the rock are tested, two experiments can be completed once after the designed temperature and pressure conditions are met, the total time consumption is reduced, and the utilization rate of underground rock cores can be effectively increased.

The invention discloses a device for measuring the permeability coefficient of rock material under the action of seepage-stress coupling, which comprises a triaxial pressure chamber balance system, a permeability coefficient acquisition system and a data acquisition and processing system, wherein the triaxial pressure chamber balance system loads samples axially or laterally through different stress paths; the permeability coefficient acquisition system is connected with the triaxial pressure chamber balance system so as to realize the determination for the quality of penetrating fluid of rock material sample; and the data acquisition and processing system regularly acquires the quality of penetrating fluid of rock material, calculates penetration flow and permeability coefficient, and draws a relationship curve of the permeability coefficient and time, and simultaneously, the data acquisition and processing system also forms a data format of the quality, the penetration flow and the permeability coefficient for storage and display. Such a measurement device can measure the permeability coefficient, as time and stress change, under different stress loading paths, has simple operation and reliable result, and can display the result visually. The invention also discloses a measurement method adopting the measurement device.

The invention discloses a system for testing rock damage and permeability under the coupling effect of temperature stress and circumferential seepage. The system comprises a frozen-heave force test device and a permeation test device, wherein the permeation test device comprises a pressure chamber for loading a rock test piece to be tested, a pressure loading device, a permeation pressure increasing and measuring device, a water bath heating device, an ultrasonic damage test device and a data acquisition device. The invention further discloses a method for testing rock damage and permeability under the coupling effect of temperature stress and circumferential seepage. The method comprises the following steps: carrying out repeated freezing-thawing tests on a rock by the frozen-heave force test device, measuring the frozen-heave force change of the rock test piece, putting the rock into the pressure chamber, applying a pressure to the rock test piece by the pressure loading device, and testing a rock permeation coefficient k and ultrasonic wave speed transmission time t under the action of flowing liquid with different temperatures and pressures so as to make a research on rock damage and permeability.

The invention provides a device and a method for measuring the gasometry permeability of rock under high pressure and belongs to the field of exploration and development of oil fields. The method comprises the following steps of: firstly, sampling gas reservoir rock and testing the rock sample by using test gas to acquire the permeating quantity of the rock sample to the test gas under the high pressure and pressure of the test gas at the moment; secondly, measuring the viscosity of the test gas under different pressure at experimental temperature to acquire a relational expression between the viscosity and the pressure of the test gas; and finally, processing the data to acquire the gasometry permeability of the rock under the high pressure. A process and the method for measuring the gasometry permeability of the rock under high pressure are established; furthermore, by analysis of the property of the gas under the high pressure, a method for processing the data of the gasometry permeability of the rock under the appropriate high pressure can be implemented; under the condition like that of high-pressure gas reservoir stratum, the gasometry permeability of the rock under the high pressure can be obtained more accurately; and data support is supplied to the development of high-pressure gas reservoir.